summaryrefslogtreecommitdiffstats
path: root/third_party/rust/jsparagus-parser/src
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /third_party/rust/jsparagus-parser/src
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/jsparagus-parser/src')
-rw-r--r--third_party/rust/jsparagus-parser/src/lexer.rs2325
-rw-r--r--third_party/rust/jsparagus-parser/src/lib.rs111
-rw-r--r--third_party/rust/jsparagus-parser/src/numeric_value.rs160
-rw-r--r--third_party/rust/jsparagus-parser/src/parser.rs262
-rw-r--r--third_party/rust/jsparagus-parser/src/queue_stack.rs256
-rw-r--r--third_party/rust/jsparagus-parser/src/simulator.rs211
-rw-r--r--third_party/rust/jsparagus-parser/src/tests.rs875
-rw-r--r--third_party/rust/jsparagus-parser/src/unicode.rs41
-rw-r--r--third_party/rust/jsparagus-parser/src/unicode_data.rs2117
9 files changed, 6358 insertions, 0 deletions
diff --git a/third_party/rust/jsparagus-parser/src/lexer.rs b/third_party/rust/jsparagus-parser/src/lexer.rs
new file mode 100644
index 0000000000..109558c5c2
--- /dev/null
+++ b/third_party/rust/jsparagus-parser/src/lexer.rs
@@ -0,0 +1,2325 @@
+//! JavaScript lexer.
+
+use crate::numeric_value::{parse_float, parse_int, NumericLiteralBase};
+use crate::parser::Parser;
+use crate::unicode::{is_id_continue, is_id_start};
+use ast::arena;
+use ast::source_atom_set::{CommonSourceAtomSetIndices, SourceAtomSet};
+use ast::source_slice_list::SourceSliceList;
+use ast::SourceLocation;
+use bumpalo::{collections::String, Bump};
+use generated_parser::{ParseError, Result, TerminalId, Token, TokenValue};
+use std::cell::RefCell;
+use std::convert::TryFrom;
+use std::rc::Rc;
+use std::str::Chars;
+
+pub struct Lexer<'alloc> {
+ allocator: &'alloc Bump,
+
+ /// Next token to be returned.
+ token: arena::Box<'alloc, Token>,
+
+ /// Length of the input text, in UTF-8 bytes.
+ source_length: usize,
+
+ /// Iterator over the remaining not-yet-parsed input.
+ chars: Chars<'alloc>,
+
+ atoms: Rc<RefCell<SourceAtomSet<'alloc>>>,
+
+ slices: Rc<RefCell<SourceSliceList<'alloc>>>,
+}
+
+enum NumericResult {
+ Int {
+ base: NumericLiteralBase,
+ },
+ Float,
+ BigInt {
+ #[allow(dead_code)]
+ base: NumericLiteralBase,
+ },
+}
+
+impl<'alloc> Lexer<'alloc> {
+ pub fn new(
+ allocator: &'alloc Bump,
+ chars: Chars<'alloc>,
+ atoms: Rc<RefCell<SourceAtomSet<'alloc>>>,
+ slices: Rc<RefCell<SourceSliceList<'alloc>>>,
+ ) -> Lexer<'alloc> {
+ Self::with_offset(allocator, chars, 0, atoms, slices)
+ }
+
+ /// Create a lexer for a part of a JS script or module. `offset` is the
+ /// total length of all previous parts, in bytes; source locations for
+ /// tokens created by the new lexer start counting from this number.
+ pub fn with_offset(
+ allocator: &'alloc Bump,
+ chars: Chars<'alloc>,
+ offset: usize,
+ atoms: Rc<RefCell<SourceAtomSet<'alloc>>>,
+ slices: Rc<RefCell<SourceSliceList<'alloc>>>,
+ ) -> Lexer<'alloc> {
+ let source_length = offset + chars.as_str().len();
+ let mut token = arena::alloc(allocator, new_token());
+ token.is_on_new_line = true;
+ Lexer {
+ allocator,
+ token,
+ source_length,
+ chars,
+ atoms,
+ slices,
+ }
+ }
+
+ fn is_looking_at(&self, s: &str) -> bool {
+ self.chars.as_str().starts_with(s)
+ }
+
+ pub fn offset(&self) -> usize {
+ self.source_length - self.chars.as_str().len()
+ }
+
+ fn peek(&self) -> Option<char> {
+ self.chars.as_str().chars().next()
+ }
+
+ fn double_peek(&self) -> Option<char> {
+ let mut chars = self.chars.as_str().chars();
+ chars.next();
+ chars.next()
+ }
+
+ fn set_result(
+ &mut self,
+ terminal_id: TerminalId,
+ loc: SourceLocation,
+ value: TokenValue,
+ ) -> Result<'alloc, ()> {
+ self.token.terminal_id = terminal_id;
+ self.token.loc = loc;
+ self.token.value = value;
+ Ok(())
+ }
+
+ #[inline]
+ pub fn next<'parser>(
+ &mut self,
+ parser: &Parser<'parser>,
+ ) -> Result<'alloc, arena::Box<'alloc, Token>> {
+ let mut next_token = arena::alloc_with(self.allocator, || new_token());
+ self.advance_impl(parser)?;
+ std::mem::swap(&mut self.token, &mut next_token);
+ Ok(next_token)
+ }
+
+ fn unexpected_err(&mut self) -> ParseError<'alloc> {
+ if let Some(ch) = self.peek() {
+ ParseError::IllegalCharacter(ch)
+ } else {
+ ParseError::UnexpectedEnd
+ }
+ }
+}
+
+/// Returns an empty token which is meant as a place holder to be mutated later.
+fn new_token() -> Token {
+ Token::basic_token(TerminalId::End, SourceLocation::default())
+}
+
+// ----------------------------------------------------------------------------
+// 11.1 Unicode Format-Control Characters
+
+/// U+200C ZERO WIDTH NON-JOINER, abbreviated in the spec as <ZWNJ>.
+/// Specially permitted in identifiers.
+const ZWNJ: char = '\u{200c}';
+
+/// U+200D ZERO WIDTH JOINER, abbreviated as <ZWJ>.
+/// Specially permitted in identifiers.
+const ZWJ: char = '\u{200d}';
+
+/// U+FEFF ZERO WIDTH NO-BREAK SPACE, abbreviated <ZWNBSP>.
+/// Considered a whitespace character in JS.
+const ZWNBSP: char = '\u{feff}';
+
+// ----------------------------------------------------------------------------
+// 11.2 White Space
+
+/// U+0009 CHARACTER TABULATION, abbreviated <TAB>.
+const TAB: char = '\u{9}';
+
+/// U+000B VERTICAL TAB, abbreviated <VT>.
+const VT: char = '\u{b}';
+
+/// U+000C FORM FEED, abbreviated <FF>.
+const FF: char = '\u{c}';
+
+/// U+0020 SPACE, abbreviated <SP>.
+const SP: char = '\u{20}';
+
+/// U+00A0 NON-BREAKING SPACE, abbreviated <NBSP>.
+const NBSP: char = '\u{a0}';
+
+// ----------------------------------------------------------------------------
+// 11.3 Line Terminators
+
+/// U+000A LINE FEED, abbreviated in the spec as <LF>.
+const LF: char = '\u{a}';
+
+/// U+000D CARRIAGE RETURN, abbreviated in the spec as <CR>.
+const CR: char = '\u{d}';
+
+/// U+2028 LINE SEPARATOR, abbreviated <LS>.
+const LS: char = '\u{2028}';
+
+/// U+2029 PARAGRAPH SEPARATOR, abbreviated <PS>.
+const PS: char = '\u{2029}';
+
+// ----------------------------------------------------------------------------
+// 11.4 Comments
+//
+// Comment::
+// MultiLineComment
+// SingleLineComment
+
+impl<'alloc> Lexer<'alloc> {
+ /// Skip a *MultiLineComment*.
+ ///
+ /// ```text
+ /// MultiLineComment ::
+ /// `/*` MultiLineCommentChars? `*/`
+ ///
+ /// MultiLineCommentChars ::
+ /// MultiLineNotAsteriskChar MultiLineCommentChars?
+ /// `*` PostAsteriskCommentChars?
+ ///
+ /// PostAsteriskCommentChars ::
+ /// MultiLineNotForwardSlashOrAsteriskChar MultiLineCommentChars?
+ /// `*` PostAsteriskCommentChars?
+ ///
+ /// MultiLineNotAsteriskChar ::
+ /// SourceCharacter but not `*`
+ ///
+ /// MultiLineNotForwardSlashOrAsteriskChar ::
+ /// SourceCharacter but not one of `/` or `*`
+ /// ```
+ ///
+ /// (B.1.3 splits MultiLineComment into two nonterminals: MultiLineComment
+ /// and SingleLineDelimitedComment. The point of that is to help specify
+ /// that a SingleLineHTMLCloseComment must occur at the start of a line. We
+ /// use `is_on_new_line` for that.)
+ ///
+ fn skip_multi_line_comment(&mut self, builder: &mut AutoCow<'alloc>) -> Result<'alloc, ()> {
+ while let Some(ch) = self.chars.next() {
+ match ch {
+ '*' if self.peek() == Some('/') => {
+ self.chars.next();
+ *builder = AutoCow::new(&self);
+ return Ok(());
+ }
+ CR | LF | PS | LS => {
+ self.token.is_on_new_line = true;
+ }
+ _ => {}
+ }
+ }
+ Err(ParseError::UnterminatedMultiLineComment.into())
+ }
+
+ /// Skip a *SingleLineComment* and the following *LineTerminatorSequence*,
+ /// if any.
+ ///
+ /// ```text
+ /// SingleLineComment ::
+ /// `//` SingleLineCommentChars?
+ ///
+ /// SingleLineCommentChars ::
+ /// SingleLineCommentChar SingleLineCommentChars?
+ ///
+ /// SingleLineCommentChar ::
+ /// SourceCharacter but not LineTerminator
+ /// ```
+ fn skip_single_line_comment(&mut self, builder: &mut AutoCow<'alloc>) {
+ while let Some(ch) = self.chars.next() {
+ match ch {
+ CR | LF | LS | PS => break,
+ _ => continue,
+ }
+ }
+ *builder = AutoCow::new(&self);
+ self.token.is_on_new_line = true;
+ }
+}
+
+// ----------------------------------------------------------------------------
+// 11.6 Names and Keywords
+
+/// True if `c` is a one-character *IdentifierStart*.
+///
+/// ```text
+/// IdentifierStart ::
+/// UnicodeIDStart
+/// `$`
+/// `_`
+/// `\` UnicodeEscapeSequence
+///
+/// UnicodeIDStart ::
+/// > any Unicode code point with the Unicode property "ID_Start"
+/// ```
+fn is_identifier_start(c: char) -> bool {
+ // Escaped case is handled separately.
+ if c.is_ascii() {
+ c == '$' || c == '_' || c.is_ascii_alphabetic()
+ } else {
+ is_id_start(c)
+ }
+}
+
+/// True if `c` is a one-character *IdentifierPart*.
+///
+/// ```text
+/// IdentifierPart ::
+/// UnicodeIDContinue
+/// `$`
+/// `\` UnicodeEscapeSequence
+/// <ZWNJ>
+/// <ZWJ>
+///
+/// UnicodeIDContinue ::
+/// > any Unicode code point with the Unicode property "ID_Continue"
+/// ```
+fn is_identifier_part(c: char) -> bool {
+ // Escaped case is handled separately.
+ if c.is_ascii() {
+ c == '$' || c == '_' || c.is_ascii_alphanumeric()
+ } else {
+ is_id_continue(c) || c == ZWNJ || c == ZWJ
+ }
+}
+
+impl<'alloc> Lexer<'alloc> {
+ /// Scan the rest of an IdentifierName, having already parsed the initial
+ /// IdentifierStart and stored it in `builder`.
+ ///
+ /// On success, this returns `Ok((has_escapes, str))`, where `has_escapes`
+ /// is true if the identifier contained any UnicodeEscapeSequences, and
+ /// `str` is the un-escaped IdentifierName, including the IdentifierStart,
+ /// on success.
+ ///
+ /// ```text
+ /// IdentifierName ::
+ /// IdentifierStart
+ /// IdentifierName IdentifierPart
+ /// ```
+ fn identifier_name_tail(
+ &mut self,
+ mut builder: AutoCow<'alloc>,
+ ) -> Result<'alloc, (bool, &'alloc str)> {
+ while let Some(ch) = self.peek() {
+ if !is_identifier_part(ch) {
+ if ch == '\\' {
+ self.chars.next();
+ builder.force_allocation_without_current_ascii_char(&self);
+
+ let value = self.unicode_escape_sequence_after_backslash()?;
+ if !is_identifier_part(value) {
+ return Err(ParseError::InvalidEscapeSequence.into());
+ }
+
+ builder.push_different(value);
+ continue;
+ }
+
+ break;
+ }
+ self.chars.next();
+ builder.push_matching(ch);
+ }
+ let has_different = builder.has_different();
+ Ok((has_different, builder.finish(&self)))
+ }
+
+ fn identifier_name(&mut self, mut builder: AutoCow<'alloc>) -> Result<'alloc, &'alloc str> {
+ match self.chars.next() {
+ None => {
+ return Err(ParseError::UnexpectedEnd.into());
+ }
+ Some(c) => {
+ match c {
+ '$' | '_' | 'a'..='z' | 'A'..='Z' => {
+ builder.push_matching(c);
+ }
+
+ '\\' => {
+ builder.force_allocation_without_current_ascii_char(&self);
+
+ let value = self.unicode_escape_sequence_after_backslash()?;
+ if !is_identifier_start(value) {
+ return Err(ParseError::IllegalCharacter(value).into());
+ }
+ builder.push_different(value);
+ }
+
+ other if is_identifier_start(other) => {
+ builder.push_matching(other);
+ }
+
+ other => {
+ return Err(ParseError::IllegalCharacter(other).into());
+ }
+ }
+ self.identifier_name_tail(builder)
+ .map(|(_has_escapes, name)| name)
+ }
+ }
+ }
+
+ /// Finish scanning an *IdentifierName* or keyword, having already scanned
+ /// the *IdentifierStart* and pushed it to `builder`.
+ ///
+ /// `start` is the offset of the *IdentifierStart*.
+ ///
+ /// The lexer doesn't know the syntactic context, so it always identifies
+ /// possible keywords. It's up to the parser to understand that, for
+ /// example, `TerminalId::If` is not a keyword when it's used as a property
+ /// or method name.
+ ///
+ /// If the source string contains no escape and it matches to possible
+ /// keywords (including contextual keywords), the result is corresponding
+ /// `TerminalId`. For example, if the source string is "yield", the result
+ /// is `TerminalId::Yield`.
+ ///
+ /// If the source string contains no escape sequence and also it doesn't
+ /// match to any possible keywords, the result is `TerminalId::Name`.
+ ///
+ /// If the source string contains at least one escape sequence,
+ /// the result is always `TerminalId::NameWithEscape`, regardless of the
+ /// StringValue of it. For example, if the source string is "\u{79}ield",
+ /// the result is `TerminalId::NameWithEscape`, and the StringValue is
+ /// "yield".
+ fn identifier_tail(&mut self, start: usize, builder: AutoCow<'alloc>) -> Result<'alloc, ()> {
+ let (has_different, text) = self.identifier_name_tail(builder)?;
+
+ // https://tc39.es/ecma262/#sec-keywords-and-reserved-words
+ //
+ // keywords in the grammar match literal sequences of specific
+ // SourceCharacter elements. A code point in a keyword cannot be
+ // expressed by a `\` UnicodeEscapeSequence.
+ let (id, value) = if has_different {
+ // Always return `NameWithEscape`.
+ //
+ // Error check against reserved word should be handled in the
+ // consumer.
+ (TerminalId::NameWithEscape, self.string_to_token_value(text))
+ } else {
+ match &text as &str {
+ "as" => (
+ TerminalId::As,
+ TokenValue::Atom(CommonSourceAtomSetIndices::as_()),
+ ),
+ "async" => {
+ /*
+ (
+ TerminalId::Async,
+ TokenValue::Atom(CommonSourceAtomSetIndices::async_()),
+ ),
+ */
+ return Err(ParseError::NotImplemented(
+ "async cannot be handled in parser due to multiple lookahead",
+ )
+ .into());
+ }
+ "await" => {
+ /*
+ (
+ TerminalId::Await,
+ TokenValue::Atom(CommonSourceAtomSetIndices::await_()),
+ ),
+ */
+ return Err(
+ ParseError::NotImplemented("await cannot be handled in parser").into(),
+ );
+ }
+ "break" => (
+ TerminalId::Break,
+ TokenValue::Atom(CommonSourceAtomSetIndices::break_()),
+ ),
+ "case" => (
+ TerminalId::Case,
+ TokenValue::Atom(CommonSourceAtomSetIndices::case()),
+ ),
+ "catch" => (
+ TerminalId::Catch,
+ TokenValue::Atom(CommonSourceAtomSetIndices::catch()),
+ ),
+ "class" => (
+ TerminalId::Class,
+ TokenValue::Atom(CommonSourceAtomSetIndices::class()),
+ ),
+ "const" => (
+ TerminalId::Const,
+ TokenValue::Atom(CommonSourceAtomSetIndices::const_()),
+ ),
+ "continue" => (
+ TerminalId::Continue,
+ TokenValue::Atom(CommonSourceAtomSetIndices::continue_()),
+ ),
+ "debugger" => (
+ TerminalId::Debugger,
+ TokenValue::Atom(CommonSourceAtomSetIndices::debugger()),
+ ),
+ "default" => (
+ TerminalId::Default,
+ TokenValue::Atom(CommonSourceAtomSetIndices::default()),
+ ),
+ "delete" => (
+ TerminalId::Delete,
+ TokenValue::Atom(CommonSourceAtomSetIndices::delete()),
+ ),
+ "do" => (
+ TerminalId::Do,
+ TokenValue::Atom(CommonSourceAtomSetIndices::do_()),
+ ),
+ "else" => (
+ TerminalId::Else,
+ TokenValue::Atom(CommonSourceAtomSetIndices::else_()),
+ ),
+ "enum" => (
+ TerminalId::Enum,
+ TokenValue::Atom(CommonSourceAtomSetIndices::enum_()),
+ ),
+ "export" => (
+ TerminalId::Export,
+ TokenValue::Atom(CommonSourceAtomSetIndices::export()),
+ ),
+ "extends" => (
+ TerminalId::Extends,
+ TokenValue::Atom(CommonSourceAtomSetIndices::extends()),
+ ),
+ "finally" => (
+ TerminalId::Finally,
+ TokenValue::Atom(CommonSourceAtomSetIndices::finally()),
+ ),
+ "for" => (
+ TerminalId::For,
+ TokenValue::Atom(CommonSourceAtomSetIndices::for_()),
+ ),
+ "from" => (
+ TerminalId::From,
+ TokenValue::Atom(CommonSourceAtomSetIndices::from()),
+ ),
+ "function" => (
+ TerminalId::Function,
+ TokenValue::Atom(CommonSourceAtomSetIndices::function()),
+ ),
+ "get" => (
+ TerminalId::Get,
+ TokenValue::Atom(CommonSourceAtomSetIndices::get()),
+ ),
+ "if" => (
+ TerminalId::If,
+ TokenValue::Atom(CommonSourceAtomSetIndices::if_()),
+ ),
+ "implements" => (
+ TerminalId::Implements,
+ TokenValue::Atom(CommonSourceAtomSetIndices::implements()),
+ ),
+ "import" => (
+ TerminalId::Import,
+ TokenValue::Atom(CommonSourceAtomSetIndices::import()),
+ ),
+ "in" => (
+ TerminalId::In,
+ TokenValue::Atom(CommonSourceAtomSetIndices::in_()),
+ ),
+ "instanceof" => (
+ TerminalId::Instanceof,
+ TokenValue::Atom(CommonSourceAtomSetIndices::instanceof()),
+ ),
+ "interface" => (
+ TerminalId::Interface,
+ TokenValue::Atom(CommonSourceAtomSetIndices::interface()),
+ ),
+ "let" => {
+ /*
+ (
+ TerminalId::Let,
+ TokenValue::Atom(CommonSourceAtomSetIndices::let_()),
+ ),
+ */
+ return Err(ParseError::NotImplemented(
+ "let cannot be handled in parser due to multiple lookahead",
+ )
+ .into());
+ }
+ "new" => (
+ TerminalId::New,
+ TokenValue::Atom(CommonSourceAtomSetIndices::new_()),
+ ),
+ "of" => (
+ TerminalId::Of,
+ TokenValue::Atom(CommonSourceAtomSetIndices::of()),
+ ),
+ "package" => (
+ TerminalId::Package,
+ TokenValue::Atom(CommonSourceAtomSetIndices::package()),
+ ),
+ "private" => (
+ TerminalId::Private,
+ TokenValue::Atom(CommonSourceAtomSetIndices::private()),
+ ),
+ "protected" => (
+ TerminalId::Protected,
+ TokenValue::Atom(CommonSourceAtomSetIndices::protected()),
+ ),
+ "public" => (
+ TerminalId::Public,
+ TokenValue::Atom(CommonSourceAtomSetIndices::public()),
+ ),
+ "return" => (
+ TerminalId::Return,
+ TokenValue::Atom(CommonSourceAtomSetIndices::return_()),
+ ),
+ "set" => (
+ TerminalId::Set,
+ TokenValue::Atom(CommonSourceAtomSetIndices::set()),
+ ),
+ "static" => (
+ TerminalId::Static,
+ TokenValue::Atom(CommonSourceAtomSetIndices::static_()),
+ ),
+ "super" => (
+ TerminalId::Super,
+ TokenValue::Atom(CommonSourceAtomSetIndices::super_()),
+ ),
+ "switch" => (
+ TerminalId::Switch,
+ TokenValue::Atom(CommonSourceAtomSetIndices::switch()),
+ ),
+ "target" => (
+ TerminalId::Target,
+ TokenValue::Atom(CommonSourceAtomSetIndices::target()),
+ ),
+ "this" => (
+ TerminalId::This,
+ TokenValue::Atom(CommonSourceAtomSetIndices::this()),
+ ),
+ "throw" => (
+ TerminalId::Throw,
+ TokenValue::Atom(CommonSourceAtomSetIndices::throw()),
+ ),
+ "try" => (
+ TerminalId::Try,
+ TokenValue::Atom(CommonSourceAtomSetIndices::try_()),
+ ),
+ "typeof" => (
+ TerminalId::Typeof,
+ TokenValue::Atom(CommonSourceAtomSetIndices::typeof_()),
+ ),
+ "var" => (
+ TerminalId::Var,
+ TokenValue::Atom(CommonSourceAtomSetIndices::var()),
+ ),
+ "void" => (
+ TerminalId::Void,
+ TokenValue::Atom(CommonSourceAtomSetIndices::void()),
+ ),
+ "while" => (
+ TerminalId::While,
+ TokenValue::Atom(CommonSourceAtomSetIndices::while_()),
+ ),
+ "with" => (
+ TerminalId::With,
+ TokenValue::Atom(CommonSourceAtomSetIndices::with()),
+ ),
+ "yield" => {
+ /*
+ (
+ TerminalId::Yield,
+ TokenValue::Atom(CommonSourceAtomSetIndices::yield_()),
+ ),
+ */
+ return Err(
+ ParseError::NotImplemented("yield cannot be handled in parser").into(),
+ );
+ }
+ "null" => (
+ TerminalId::NullLiteral,
+ TokenValue::Atom(CommonSourceAtomSetIndices::null()),
+ ),
+ "true" => (
+ TerminalId::BooleanLiteral,
+ TokenValue::Atom(CommonSourceAtomSetIndices::true_()),
+ ),
+ "false" => (
+ TerminalId::BooleanLiteral,
+ TokenValue::Atom(CommonSourceAtomSetIndices::false_()),
+ ),
+ _ => (TerminalId::Name, self.string_to_token_value(text)),
+ }
+ };
+
+ self.set_result(id, SourceLocation::new(start, self.offset()), value)
+ }
+
+ /// ```text
+ /// PrivateIdentifier::
+ /// `#` IdentifierName
+ /// ```
+ fn private_identifier(&mut self, start: usize, builder: AutoCow<'alloc>) -> Result<'alloc, ()> {
+ let name = self.identifier_name(builder)?;
+ let value = self.string_to_token_value(name);
+ self.set_result(
+ TerminalId::PrivateIdentifier,
+ SourceLocation::new(start, self.offset()),
+ value,
+ )
+ }
+
+ /// ```text
+ /// UnicodeEscapeSequence::
+ /// `u` Hex4Digits
+ /// `u{` CodePoint `}`
+ /// ```
+ fn unicode_escape_sequence_after_backslash(&mut self) -> Result<'alloc, char> {
+ match self.chars.next() {
+ Some('u') => {}
+ _ => {
+ return Err(ParseError::InvalidEscapeSequence.into());
+ }
+ }
+ self.unicode_escape_sequence_after_backslash_and_u()
+ }
+
+ fn unicode_escape_sequence_after_backslash_and_u(&mut self) -> Result<'alloc, char> {
+ let value = match self.peek() {
+ Some('{') => {
+ self.chars.next();
+
+ let value = self.code_point()?;
+ match self.chars.next() {
+ Some('}') => {}
+ _ => {
+ return Err(ParseError::InvalidEscapeSequence.into());
+ }
+ }
+ value
+ }
+ _ => self.hex_4_digits()?,
+ };
+
+ Ok(value)
+ }
+}
+
+impl<'alloc> Lexer<'alloc> {
+ // ------------------------------------------------------------------------
+ // 11.8.3 Numeric Literals
+
+ /// Advance over decimal digits in the input.
+ ///
+ /// ```text
+ /// NumericLiteralSeparator::
+ /// `_`
+ ///
+ /// DecimalDigits ::
+ /// DecimalDigit
+ /// DecimalDigits NumericLiteralSeparator? DecimalDigit
+ ///
+ /// DecimalDigit :: one of
+ /// `0` `1` `2` `3` `4` `5` `6` `7` `8` `9`
+ /// ```
+ fn decimal_digits(&mut self) -> Result<'alloc, ()> {
+ if let Some('0'..='9') = self.peek() {
+ self.chars.next();
+ } else {
+ return Err(self.unexpected_err().into());
+ }
+
+ self.decimal_digits_after_first_digit()?;
+ Ok(())
+ }
+
+ fn optional_decimal_digits(&mut self) -> Result<'alloc, ()> {
+ if let Some('0'..='9') = self.peek() {
+ self.chars.next();
+ } else {
+ return Ok(());
+ }
+
+ self.decimal_digits_after_first_digit()?;
+ Ok(())
+ }
+
+ fn decimal_digits_after_first_digit(&mut self) -> Result<'alloc, ()> {
+ while let Some(next) = self.peek() {
+ match next {
+ '_' => {
+ self.chars.next();
+
+ if let Some('0'..='9') = self.peek() {
+ self.chars.next();
+ } else {
+ return Err(self.unexpected_err().into());
+ }
+ }
+ '0'..='9' => {
+ self.chars.next();
+ }
+ _ => break,
+ }
+ }
+ Ok(())
+ }
+
+ /// Skip an ExponentPart, if present.
+ ///
+ /// ```text
+ /// ExponentPart ::
+ /// ExponentIndicator SignedInteger
+ ///
+ /// ExponentIndicator :: one of
+ /// `e` `E`
+ ///
+ /// SignedInteger ::
+ /// DecimalDigits
+ /// `+` DecimalDigits
+ /// `-` DecimalDigits
+ /// ```
+ fn optional_exponent(&mut self) -> Result<'alloc, bool> {
+ if let Some('e') | Some('E') = self.peek() {
+ self.chars.next();
+ self.decimal_exponent()?;
+ return Ok(true);
+ }
+
+ Ok(false)
+ }
+
+ fn decimal_exponent(&mut self) -> Result<'alloc, ()> {
+ if let Some('+') | Some('-') = self.peek() {
+ self.chars.next();
+ }
+
+ self.decimal_digits()?;
+
+ Ok(())
+ }
+
+ /// ```text
+ /// HexDigit :: one of
+ /// `0` `1` `2` `3` `4` `5` `6` `7` `8` `9` `a` `b` `c` `d` `e` `f` `A` `B` `C` `D` `E` `F`
+ /// ```
+ fn hex_digit(&mut self) -> Result<'alloc, u32> {
+ match self.chars.next() {
+ None => Err(ParseError::InvalidEscapeSequence.into()),
+ Some(c @ '0'..='9') => Ok(c as u32 - '0' as u32),
+ Some(c @ 'a'..='f') => Ok(10 + (c as u32 - 'a' as u32)),
+ Some(c @ 'A'..='F') => Ok(10 + (c as u32 - 'A' as u32)),
+ Some(other) => Err(ParseError::IllegalCharacter(other).into()),
+ }
+ }
+
+ fn code_point_to_char(value: u32) -> Result<'alloc, char> {
+ if 0xd800 <= value && value <= 0xdfff {
+ Err(ParseError::NotImplemented("unicode escape sequences (surrogates)").into())
+ } else {
+ char::try_from(value).map_err(|_| ParseError::InvalidEscapeSequence.into())
+ }
+ }
+
+ /// ```text
+ /// Hex4Digits ::
+ /// HexDigit HexDigit HexDigit HexDigit
+ /// ```
+ fn hex_4_digits(&mut self) -> Result<'alloc, char> {
+ let mut value = 0;
+ for _ in 0..4 {
+ value = (value << 4) | self.hex_digit()?;
+ }
+ Self::code_point_to_char(value)
+ }
+
+ /// ```text
+ /// CodePoint ::
+ /// HexDigits but only if MV of HexDigits ≤ 0x10FFFF
+ ///
+ /// HexDigits ::
+ /// HexDigit
+ /// HexDigits HexDigit
+ /// ```
+ fn code_point(&mut self) -> Result<'alloc, char> {
+ let mut value = self.hex_digit()?;
+
+ loop {
+ let next = match self.peek() {
+ None => {
+ return Err(ParseError::InvalidEscapeSequence.into());
+ }
+ Some(c @ '0'..='9') => c as u32 - '0' as u32,
+ Some(c @ 'a'..='f') => 10 + (c as u32 - 'a' as u32),
+ Some(c @ 'A'..='F') => 10 + (c as u32 - 'A' as u32),
+ Some(_) => break,
+ };
+ self.chars.next();
+ value = (value << 4) | next;
+ if value > 0x10FFFF {
+ return Err(ParseError::InvalidEscapeSequence.into());
+ }
+ }
+
+ Self::code_point_to_char(value)
+ }
+
+ /// Scan a NumericLiteral (defined in 11.8.3, extended by B.1.1) after
+ /// having already consumed the first character, which was `0`.
+ ///
+ /// ```text
+ /// NumericLiteral ::
+ /// DecimalLiteral
+ /// DecimalBigIntegerLiteral
+ /// NonDecimalIntegerLiteral
+ /// NonDecimalIntegerLiteral BigIntLiteralSuffix
+ ///
+ /// DecimalBigIntegerLiteral ::
+ /// `0` BigIntLiteralSuffix
+ /// NonZeroDigit DecimalDigits? BigIntLiteralSuffix
+ ///
+ /// NonDecimalIntegerLiteral ::
+ /// BinaryIntegerLiteral
+ /// OctalIntegerLiteral
+ /// HexIntegerLiteral
+ ///
+ /// BigIntLiteralSuffix ::
+ /// `n`
+ /// ```
+ fn numeric_literal_starting_with_zero(&mut self) -> Result<'alloc, NumericResult> {
+ let mut base = NumericLiteralBase::Decimal;
+ match self.peek() {
+ // BinaryIntegerLiteral ::
+ // `0b` BinaryDigits
+ // `0B` BinaryDigits
+ //
+ // BinaryDigits ::
+ // BinaryDigit
+ // BinaryDigits NumericLiteralSeparator? BinaryDigit
+ //
+ // BinaryDigit :: one of
+ // `0` `1`
+ Some('b') | Some('B') => {
+ self.chars.next();
+
+ base = NumericLiteralBase::Binary;
+
+ if let Some('0'..='1') = self.peek() {
+ self.chars.next();
+ } else {
+ return Err(self.unexpected_err().into());
+ }
+
+ while let Some(next) = self.peek() {
+ match next {
+ '_' => {
+ self.chars.next();
+
+ if let Some('0'..='1') = self.peek() {
+ self.chars.next();
+ } else {
+ return Err(self.unexpected_err().into());
+ }
+ }
+ '0'..='1' => {
+ self.chars.next();
+ }
+ _ => break,
+ }
+ }
+
+ if let Some('n') = self.peek() {
+ self.chars.next();
+ self.check_after_numeric_literal()?;
+ return Ok(NumericResult::BigInt { base });
+ }
+ }
+
+ // OctalIntegerLiteral ::
+ // `0o` OctalDigits
+ // `0O` OctalDigits
+ //
+ // OctalDigits ::
+ // OctalDigit
+ // OctalDigits NumericLiteralSeparator? OctalDigit
+ //
+ // OctalDigit :: one of
+ // `0` `1` `2` `3` `4` `5` `6` `7`
+ //
+ Some('o') | Some('O') => {
+ self.chars.next();
+
+ base = NumericLiteralBase::Octal;
+
+ if let Some('0'..='7') = self.peek() {
+ self.chars.next();
+ } else {
+ return Err(self.unexpected_err().into());
+ }
+
+ while let Some(next) = self.peek() {
+ match next {
+ '_' => {
+ self.chars.next();
+
+ if let Some('0'..='7') = self.peek() {
+ self.chars.next();
+ } else {
+ return Err(self.unexpected_err().into());
+ }
+ }
+ '0'..='7' => {
+ self.chars.next();
+ }
+ _ => break,
+ }
+ }
+
+ if let Some('n') = self.peek() {
+ self.chars.next();
+ self.check_after_numeric_literal()?;
+ return Ok(NumericResult::BigInt { base });
+ }
+ }
+
+ // HexIntegerLiteral ::
+ // `0x` HexDigits
+ // `0X` HexDigits
+ //
+ // HexDigits ::
+ // HexDigit
+ // HexDigits NumericLiteralSeparator? HexDigit
+ //
+ // HexDigit :: one of
+ // `0` `1` `2` `3` `4` `5` `6` `7` `8` `9` `a` `b` `c` `d` `e` `f` `A` `B` `C` `D` `E` `F`
+ Some('x') | Some('X') => {
+ self.chars.next();
+
+ base = NumericLiteralBase::Hex;
+
+ if let Some('0'..='9') | Some('a'..='f') | Some('A'..='F') = self.peek() {
+ self.chars.next();
+ } else {
+ return Err(self.unexpected_err().into());
+ }
+
+ while let Some(next) = self.peek() {
+ match next {
+ '_' => {
+ self.chars.next();
+
+ if let Some('0'..='9') | Some('a'..='f') | Some('A'..='F') = self.peek()
+ {
+ self.chars.next();
+ } else {
+ return Err(self.unexpected_err().into());
+ }
+ }
+ '0'..='9' | 'a'..='f' | 'A'..='F' => {
+ self.chars.next();
+ }
+ _ => break,
+ }
+ }
+
+ if let Some('n') = self.peek() {
+ self.chars.next();
+ self.check_after_numeric_literal()?;
+ return Ok(NumericResult::BigInt { base });
+ }
+ }
+
+ Some('.') => {
+ self.chars.next();
+ return self.decimal_literal_after_decimal_point_after_digits();
+ }
+
+ Some('e') | Some('E') => {
+ self.chars.next();
+ self.decimal_exponent()?;
+ return Ok(NumericResult::Float);
+ }
+
+ Some('n') => {
+ self.chars.next();
+ self.check_after_numeric_literal()?;
+ return Ok(NumericResult::BigInt { base });
+ }
+
+ Some('0'..='9') => {
+ // This is almost always the token `0` in practice.
+ //
+ // In nonstrict code, as a legacy feature, other numbers
+ // starting with `0` are allowed. If /0[0-7]+/ matches, it's a
+ // LegacyOctalIntegerLiteral; but if we see an `8` or `9` in
+ // the number, it's decimal. Decimal numbers can have a decimal
+ // point and/or ExponentPart; octals can't.
+ //
+ // Neither is allowed with a BigIntLiteralSuffix `n`.
+ //
+ // LegacyOctalIntegerLiteral ::
+ // `0` OctalDigit
+ // LegacyOctalIntegerLiteral OctalDigit
+ //
+ // NonOctalDecimalIntegerLiteral ::
+ // `0` NonOctalDigit
+ // LegacyOctalLikeDecimalIntegerLiteral NonOctalDigit
+ // NonOctalDecimalIntegerLiteral DecimalDigit
+ //
+ // LegacyOctalLikeDecimalIntegerLiteral ::
+ // `0` OctalDigit
+ // LegacyOctalLikeDecimalIntegerLiteral OctalDigit
+ //
+ // NonOctalDigit :: one of
+ // `8` `9`
+ //
+
+ // TODO: implement `strict_mode` check
+ // let strict_mode = true;
+ // if !strict_mode {
+ // // TODO: Distinguish between Octal and NonOctalDecimal.
+ // // TODO: Support NonOctalDecimal followed by a decimal
+ // // point and/or ExponentPart.
+ // self.decimal_digits()?;
+ // }
+ return Err(ParseError::NotImplemented("LegacyOctalIntegerLiteral").into());
+ }
+
+ _ => {}
+ }
+
+ self.check_after_numeric_literal()?;
+ Ok(NumericResult::Int { base })
+ }
+
+ /// Scan a NumericLiteral (defined in 11.8.3, extended by B.1.1) after
+ /// having already consumed the first character, which is a decimal digit.
+ fn decimal_literal_after_first_digit(&mut self) -> Result<'alloc, NumericResult> {
+ // DecimalLiteral ::
+ // DecimalIntegerLiteral `.` DecimalDigits? ExponentPart?
+ // `.` DecimalDigits ExponentPart?
+ // DecimalIntegerLiteral ExponentPart?
+ //
+ // DecimalIntegerLiteral ::
+ // `0` #see `numeric_literal_starting_with_zero`
+ // NonZeroDigit
+ // NonZeroDigit NumericLiteralSeparator? DecimalDigits
+ // NonOctalDecimalIntegerLiteral #see `numeric_literal_
+ // # starting_with_zero`
+ //
+ // NonZeroDigit :: one of
+ // `1` `2` `3` `4` `5` `6` `7` `8` `9`
+
+ self.decimal_digits_after_first_digit()?;
+ match self.peek() {
+ Some('.') => {
+ self.chars.next();
+ return self.decimal_literal_after_decimal_point_after_digits();
+ }
+ Some('n') => {
+ self.chars.next();
+ self.check_after_numeric_literal()?;
+ return Ok(NumericResult::BigInt {
+ base: NumericLiteralBase::Decimal,
+ });
+ }
+ _ => {}
+ }
+
+ let has_exponent = self.optional_exponent()?;
+ self.check_after_numeric_literal()?;
+
+ let result = if has_exponent {
+ NumericResult::Float
+ } else {
+ NumericResult::Int {
+ base: NumericLiteralBase::Decimal,
+ }
+ };
+
+ Ok(result)
+ }
+
+ fn decimal_literal_after_decimal_point(&mut self) -> Result<'alloc, NumericResult> {
+ // The parts after `.` in
+ //
+ // `.` DecimalDigits ExponentPart?
+ self.decimal_digits()?;
+ self.optional_exponent()?;
+ self.check_after_numeric_literal()?;
+
+ Ok(NumericResult::Float)
+ }
+
+ fn decimal_literal_after_decimal_point_after_digits(
+ &mut self,
+ ) -> Result<'alloc, NumericResult> {
+ // The parts after `.` in
+ //
+ // DecimalLiteral ::
+ // DecimalIntegerLiteral `.` DecimalDigits? ExponentPart?
+ self.optional_decimal_digits()?;
+ self.optional_exponent()?;
+ self.check_after_numeric_literal()?;
+
+ Ok(NumericResult::Float)
+ }
+
+ fn check_after_numeric_literal(&self) -> Result<'alloc, ()> {
+ // The SourceCharacter immediately following a
+ // NumericLiteral must not be an IdentifierStart or
+ // DecimalDigit. (11.8.3)
+ if let Some(ch) = self.peek() {
+ if is_identifier_start(ch) || ch.is_digit(10) {
+ return Err(ParseError::IllegalCharacter(ch).into());
+ }
+ }
+
+ Ok(())
+ }
+
+ // ------------------------------------------------------------------------
+ // 11.8.4 String Literals (as extended by B.1.2)
+
+ /// Scan an LineContinuation or EscapeSequence in a string literal, having
+ /// already consumed the initial backslash character.
+ ///
+ /// ```text
+ /// LineContinuation ::
+ /// `\` LineTerminatorSequence
+ ///
+ /// EscapeSequence ::
+ /// CharacterEscapeSequence
+ /// (in strict mode code) `0` [lookahead ∉ DecimalDigit]
+ /// (in non-strict code) LegacyOctalEscapeSequence
+ /// HexEscapeSequence
+ /// UnicodeEscapeSequence
+ ///
+ /// CharacterEscapeSequence ::
+ /// SingleEscapeCharacter
+ /// NonEscapeCharacter
+ ///
+ /// SingleEscapeCharacter :: one of
+ /// `'` `"` `\` `b` `f` `n` `r` `t` `v`
+ ///
+ /// LegacyOctalEscapeSequence ::
+ /// OctalDigit [lookahead ∉ OctalDigit]
+ /// ZeroToThree OctalDigit [lookahead ∉ OctalDigit]
+ /// FourToSeven OctalDigit
+ /// ZeroToThree OctalDigit OctalDigit
+ ///
+ /// ZeroToThree :: one of
+ /// `0` `1` `2` `3`
+ ///
+ /// FourToSeven :: one of
+ /// `4` `5` `6` `7`
+ /// ```
+ fn escape_sequence(&mut self, text: &mut String<'alloc>) -> Result<'alloc, ()> {
+ match self.chars.next() {
+ None => {
+ return Err(ParseError::UnterminatedString.into());
+ }
+ Some(c) => match c {
+ LF | LS | PS => {
+ // LineContinuation. Ignore it.
+ //
+ // Don't set is_on_new_line because this LineContinuation
+ // has no bearing on whether the current string literal was
+ // the first token on the line where it started.
+ }
+
+ CR => {
+ // LineContinuation. Check for the sequence \r\n; otherwise
+ // ignore it.
+ if self.peek() == Some(LF) {
+ self.chars.next();
+ }
+ }
+
+ '\'' | '"' | '\\' => {
+ text.push(c);
+ }
+
+ 'b' => {
+ text.push('\u{8}');
+ }
+
+ 'f' => {
+ text.push(FF);
+ }
+
+ 'n' => {
+ text.push(LF);
+ }
+
+ 'r' => {
+ text.push(CR);
+ }
+
+ 't' => {
+ text.push(TAB);
+ }
+
+ 'v' => {
+ text.push(VT);
+ }
+
+ 'x' => {
+ // HexEscapeSequence ::
+ // `x` HexDigit HexDigit
+ let mut value = self.hex_digit()?;
+ value = (value << 4) | self.hex_digit()?;
+ match char::try_from(value) {
+ Err(_) => {
+ return Err(ParseError::InvalidEscapeSequence.into());
+ }
+ Ok(c) => {
+ text.push(c);
+ }
+ }
+ }
+
+ 'u' => {
+ let c = self.unicode_escape_sequence_after_backslash_and_u()?;
+ text.push(c);
+ }
+
+ '0' => {
+ // In strict mode code and in template literals, the
+ // relevant production is
+ //
+ // EscapeSequence ::
+ // `0` [lookahead <! DecimalDigit]
+ //
+ // In non-strict StringLiterals, `\0` begins a
+ // LegacyOctalEscapeSequence which may contain more digits.
+ match self.peek() {
+ Some('0'..='7') => {
+ return Err(ParseError::NotImplemented(
+ "legacy octal escape sequence in string",
+ )
+ .into());
+ }
+ Some('8'..='9') => {
+ return Err(ParseError::NotImplemented(
+ "digit immediately following \\0 escape sequence",
+ )
+ .into());
+ }
+ _ => {}
+ }
+ text.push('\0');
+ }
+
+ '1'..='7' => {
+ return Err(ParseError::NotImplemented(
+ "legacy octal escape sequence in string",
+ )
+ .into());
+ }
+
+ other => {
+ // "\8" and "\9" are invalid per spec, but SpiderMonkey and
+ // V8 accept them, and JSC accepts them in non-strict mode.
+ // "\8" is "8" and "\9" is "9".
+ text.push(other);
+ }
+ },
+ }
+ Ok(())
+ }
+
+ /// Scan a string literal, having already consumed the starting quote
+ /// character `delimiter`.
+ ///
+ /// ```text
+ /// StringLiteral ::
+ /// `"` DoubleStringCharacters? `"`
+ /// `'` SingleStringCharacters? `'`
+ ///
+ /// DoubleStringCharacters ::
+ /// DoubleStringCharacter DoubleStringCharacters?
+ ///
+ /// SingleStringCharacters ::
+ /// SingleStringCharacter SingleStringCharacters?
+ ///
+ /// DoubleStringCharacter ::
+ /// SourceCharacter but not one of `"` or `\` or LineTerminator
+ /// <LS>
+ /// <PS>
+ /// `\` EscapeSequence
+ /// LineContinuation
+ ///
+ /// SingleStringCharacter ::
+ /// SourceCharacter but not one of `'` or `\` or LineTerminator
+ /// <LS>
+ /// <PS>
+ /// `\` EscapeSequence
+ /// LineContinuation
+ /// ```
+ fn string_literal(&mut self, delimiter: char) -> Result<'alloc, ()> {
+ let offset = self.offset() - 1;
+ let mut builder = AutoCow::new(&self);
+ loop {
+ match self.chars.next() {
+ None | Some('\r') | Some('\n') => {
+ return Err(ParseError::UnterminatedString.into());
+ }
+
+ Some(c @ '"') | Some(c @ '\'') => {
+ if c == delimiter {
+ let value = self.string_to_token_value(builder.finish_without_push(&self));
+ return self.set_result(
+ TerminalId::StringLiteral,
+ SourceLocation::new(offset, self.offset()),
+ value,
+ );
+ } else {
+ builder.push_matching(c);
+ }
+ }
+
+ Some('\\') => {
+ let text = builder.get_mut_string_without_current_ascii_char(&self);
+ self.escape_sequence(text)?;
+ }
+
+ Some(other) => {
+ // NonEscapeCharacter ::
+ // SourceCharacter but not one of EscapeCharacter or LineTerminator
+ //
+ // EscapeCharacter ::
+ // SingleEscapeCharacter
+ // DecimalDigit
+ // `x`
+ // `u`
+ builder.push_matching(other);
+ }
+ }
+ }
+ }
+
+ // ------------------------------------------------------------------------
+ // 11.8.5 Regular Expression Literals
+
+ fn regular_expression_backslash_sequence(&mut self) -> Result<'alloc, ()> {
+ match self.chars.next() {
+ None | Some(CR) | Some(LF) | Some(LS) | Some(PS) => {
+ Err(ParseError::UnterminatedRegExp.into())
+ }
+ Some(_) => Ok(()),
+ }
+ }
+
+ // See 12.2.8 and 11.8.5 sections.
+ fn regular_expression_literal(&mut self, builder: &mut AutoCow<'alloc>) -> Result<'alloc, ()> {
+ let offset = self.offset();
+
+ loop {
+ match self.chars.next() {
+ None | Some(CR) | Some(LF) | Some(LS) | Some(PS) => {
+ return Err(ParseError::UnterminatedRegExp.into());
+ }
+ Some('/') => {
+ break;
+ }
+ Some('[') => {
+ // RegularExpressionClass.
+ loop {
+ match self.chars.next() {
+ None | Some(CR) | Some(LF) | Some(LS) | Some(PS) => {
+ return Err(ParseError::UnterminatedRegExp.into());
+ }
+ Some(']') => {
+ break;
+ }
+ Some('\\') => {
+ self.regular_expression_backslash_sequence()?;
+ }
+ Some(_) => {}
+ }
+ }
+ }
+ Some('\\') => {
+ self.regular_expression_backslash_sequence()?;
+ }
+ Some(_) => {}
+ }
+ }
+ let mut flag_text = AutoCow::new(&self);
+ while let Some(ch) = self.peek() {
+ match ch {
+ '$' | '_' | 'a'..='z' | 'A'..='Z' | '0'..='9' => {
+ self.chars.next();
+ flag_text.push_matching(ch);
+ }
+ _ => break,
+ }
+ }
+
+ // 12.2.8.2.1 Assert literal is a RegularExpressionLiteral.
+ let literal = builder.finish(&self);
+
+ // 12.2.8.2.2 Check that only gimsuy flags are mentioned at most once.
+ let gimsuy_mask: u32 = ['g', 'i', 'm', 's', 'u', 'y']
+ .iter()
+ .map(|x| 1 << ((*x as u8) - ('a' as u8)))
+ .sum();
+ let mut flag_text_set: u32 = 0;
+ for ch in flag_text.finish(&self).chars() {
+ if !ch.is_ascii_lowercase() {
+ return Err(ParseError::NotImplemented(
+ "Unexpected flag in regular expression literal",
+ )
+ .into());
+ }
+ let ch_mask = 1 << ((ch as u8) - ('a' as u8));
+ if ch_mask & gimsuy_mask == 0 {
+ return Err(ParseError::NotImplemented(
+ "Unexpected flag in regular expression literal",
+ )
+ .into());
+ }
+ if flag_text_set & ch_mask != 0 {
+ return Err(ParseError::NotImplemented(
+ "Flag is mentioned twice in regular expression literal",
+ )
+ .into());
+ }
+ flag_text_set |= ch_mask;
+ }
+
+ // TODO: 12.2.8.2.4 and 12.2.8.2.5 Check that the body matches the
+ // grammar defined in 21.2.1.
+
+ let value = self.slice_to_token_value(literal);
+ self.set_result(
+ TerminalId::RegularExpressionLiteral,
+ SourceLocation::new(offset, self.offset()),
+ value,
+ )
+ }
+
+ // ------------------------------------------------------------------------
+ // 11.8.6 Template Literal Lexical Components
+
+ /// Parse a template literal component token, having already consumed the
+ /// starting `` ` `` or `}` character. On success, the `id` of the returned
+ /// `Token` is `subst` (if the token ends with `${`) or `tail` (if the
+ /// token ends with `` ` ``).
+ ///
+ /// ```text
+ /// NoSubstitutionTemplate ::
+ /// ``` TemplateCharacters? ```
+ ///
+ /// TemplateHead ::
+ /// ``` TemplateCharacters? `${`
+ ///
+ /// TemplateMiddle ::
+ /// `}` TemplateCharacters? `${`
+ ///
+ /// TemplateTail ::
+ /// `}` TemplateCharacters? ```
+ ///
+ /// TemplateCharacters ::
+ /// TemplateCharacter TemplateCharacters?
+ /// ```
+ fn template_part(
+ &mut self,
+ start: usize,
+ subst: TerminalId,
+ tail: TerminalId,
+ ) -> Result<'alloc, ()> {
+ let mut builder = AutoCow::new(&self);
+ while let Some(ch) = self.chars.next() {
+ // TemplateCharacter ::
+ // `$` [lookahead != `{` ]
+ // `\` EscapeSequence
+ // `\` NotEscapeSequence
+ // LineContinuation
+ // LineTerminatorSequence
+ // SourceCharacter but not one of ``` or `\` or `$` or LineTerminator
+ //
+ // NotEscapeSequence ::
+ // `0` DecimalDigit
+ // DecimalDigit but not `0`
+ // `x` [lookahead <! HexDigit]
+ // `x` HexDigit [lookahead <! HexDigit]
+ // `u` [lookahead <! HexDigit] [lookahead != `{`]
+ // `u` HexDigit [lookahead <! HexDigit]
+ // `u` HexDigit HexDigit [lookahead <! HexDigit]
+ // `u` HexDigit HexDigit HexDigit [lookahead <! HexDigit]
+ // `u` `{` [lookahead <! HexDigit]
+ // `u` `{` NotCodePoint [lookahead <! HexDigit]
+ // `u` `{` CodePoint [lookahead <! HexDigit] [lookahead != `}`]
+ //
+ // NotCodePoint ::
+ // HexDigits [> but only if MV of |HexDigits| > 0x10FFFF ]
+ //
+ // CodePoint ::
+ // HexDigits [> but only if MV of |HexDigits| ≤ 0x10FFFF ]
+ if ch == '$' && self.peek() == Some('{') {
+ self.chars.next();
+ let value = self.string_to_token_value(builder.finish_without_push(&self));
+ return self.set_result(subst, SourceLocation::new(start, self.offset()), value);
+ }
+ if ch == '`' {
+ let value = self.string_to_token_value(builder.finish_without_push(&self));
+ return self.set_result(tail, SourceLocation::new(start, self.offset()), value);
+ }
+ // TODO: Support escape sequences.
+ if ch == '\\' {
+ let text = builder.get_mut_string_without_current_ascii_char(&self);
+ self.escape_sequence(text)?;
+ } else {
+ builder.push_matching(ch);
+ }
+ }
+ Err(ParseError::UnterminatedString.into())
+ }
+
+ fn advance_impl<'parser>(&mut self, parser: &Parser<'parser>) -> Result<'alloc, ()> {
+ let mut builder = AutoCow::new(&self);
+ let mut start = self.offset();
+ while let Some(c) = self.chars.next() {
+ match c {
+ // 11.2 White Space
+ //
+ // WhiteSpace ::
+ // <TAB>
+ // <VT>
+ // <FF>
+ // <SP>
+ // <NBSP>
+ // <ZWNBSP>
+ // <USP>
+ TAB |
+ VT |
+ FF |
+ SP |
+ NBSP |
+ ZWNBSP |
+ '\u{1680}' | // Ogham space mark (in <USP>)
+ '\u{2000}' ..= '\u{200a}' | // typesetting spaces (in <USP>)
+ '\u{202f}' | // Narrow no-break space (in <USP>)
+ '\u{205f}' | // Medium mathematical space (in <USP>)
+ '\u{3000}' // Ideographic space (in <USP>)
+ => {
+ // TODO - The spec uses <USP> to stand for any character
+ // with category "Space_Separator" (Zs). New Unicode
+ // standards may add characters to this set. This should therefore be
+ // implemented using the Unicode database somehow.
+ builder = AutoCow::new(&self);
+ start = self.offset();
+ continue;
+ }
+
+ // 11.3 Line Terminators
+ //
+ // LineTerminator ::
+ // <LF>
+ // <CR>
+ // <LS>
+ // <PS>
+ LF | CR | LS | PS => {
+ self.token.is_on_new_line = true;
+ builder = AutoCow::new(&self);
+ start = self.offset();
+ continue;
+ }
+
+ '0' => {
+ let result = self.numeric_literal_starting_with_zero()?;
+ return Ok(self.numeric_result_to_advance_result(builder.finish(&self), start, result)?);
+ }
+
+ '1'..='9' => {
+ let result = self.decimal_literal_after_first_digit()?;
+ return Ok(self.numeric_result_to_advance_result(builder.finish(&self), start, result)?);
+ }
+
+ '"' | '\'' => {
+ return self.string_literal(c);
+ }
+
+ '`' => {
+ return self.template_part(start, TerminalId::TemplateHead, TerminalId::NoSubstitutionTemplate);
+ }
+
+ '!' => match self.peek() {
+ Some('=') => {
+ self.chars.next();
+ match self.peek() {
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::StrictNotEqual,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::LaxNotEqual,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ }
+ }
+ _ => return self.set_result(
+ TerminalId::LogicalNot,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ },
+
+ '%' => match self.peek() {
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::RemainderAssign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::Remainder,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ },
+
+ '&' => match self.peek() {
+ Some('&') => {
+ self.chars.next();
+ match self.peek() {
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::LogicalAndAssign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::LogicalAnd,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ )
+ }
+ }
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::BitwiseAndAssign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::BitwiseAnd,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ },
+
+ '*' => match self.peek() {
+ Some('*') => {
+ self.chars.next();
+ match self.peek() {
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::ExponentiateAssign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::Exponentiate,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ }
+ }
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::MultiplyAssign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::Star,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ },
+
+ '+' => match self.peek() {
+ Some('+') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::Increment,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::AddAssign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::Plus,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ },
+
+ '-' => match self.peek() {
+ Some('-') => {
+ self.chars.next();
+ match self.peek() {
+ Some('>') if self.token.is_on_new_line => {
+ // B.1.3 SingleLineHTMLCloseComment
+ // TODO: Limit this to Script (not Module).
+ self.skip_single_line_comment(&mut builder);
+ continue;
+ }
+ _ => return self.set_result(
+ TerminalId::Decrement,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ }
+ }
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::SubtractAssign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::Minus,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ },
+
+ '.' => match self.peek() {
+ Some('.') => {
+ self.chars.next();
+ match self.peek() {
+ Some('.') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::Ellipsis,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return Err(ParseError::IllegalCharacter('.').into()),
+ }
+ }
+ Some('0'..='9') => {
+ let result = self.decimal_literal_after_decimal_point()?;
+ return Ok(self.numeric_result_to_advance_result(builder.finish(&self), start, result)?);
+ }
+ _ => return self.set_result(
+ TerminalId::Dot,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ },
+
+ '/' => match self.peek() {
+ Some('/') => {
+ // SingleLineComment :: `//` SingleLineCommentChars?
+ self.chars.next();
+ self.skip_single_line_comment(&mut builder);
+ start = self.offset();
+ continue;
+ }
+ Some('*') => {
+ self.chars.next();
+ self.skip_multi_line_comment(&mut builder)?;
+ start = self.offset();
+ continue;
+ }
+ _ => {
+ if parser.can_accept_terminal(TerminalId::Divide) {
+ match self.peek() {
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::DivideAssign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::Divide,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ }
+ }
+ return self.regular_expression_literal(&mut builder);
+ }
+ },
+
+ '}' => {
+ if parser.can_accept_terminal(TerminalId::TemplateMiddle) {
+ return self.template_part(start, TerminalId::TemplateMiddle, TerminalId::TemplateTail);
+ }
+ return self.set_result(
+ TerminalId::CloseBrace,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+
+ '<' => match self.peek() {
+ Some('<') => {
+ self.chars.next();
+ match self.peek() {
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::LeftShiftAssign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::LeftShift,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ }
+ }
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::LessThanOrEqualTo,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ Some('!') if self.is_looking_at("!--") => {
+ // B.1.3 SingleLineHTMLOpenComment. Note that the above
+ // `is_looking_at` test peeked ahead at the next three
+ // characters of input. This lookahead is necessary
+ // because `x<!--` has a comment but `x<!-y` does not.
+ //
+ // TODO: Limit this to Script (not Module).
+ self.skip_single_line_comment(&mut builder);
+ start = self.offset();
+ continue;
+ }
+ _ => return self.set_result(
+ TerminalId::LessThan,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ },
+
+ '=' => match self.peek() {
+ Some('=') => {
+ self.chars.next();
+ match self.peek() {
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::StrictEqual,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::LaxEqual,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ }
+ }
+ Some('>') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::Arrow,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::EqualSign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ },
+
+ '>' => match self.peek() {
+ Some('>') => {
+ self.chars.next();
+ match self.peek() {
+ Some('>') => {
+ self.chars.next();
+ match self.peek() {
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::UnsignedRightShiftAssign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::UnsignedRightShift,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ }
+ }
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::SignedRightShiftAssign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::SignedRightShift,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ }
+ }
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::GreaterThanOrEqualTo,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::GreaterThan,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ },
+
+ '^' => match self.peek() {
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::BitwiseXorAssign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::BitwiseXor,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ },
+
+ '|' => match self.peek() {
+ Some('|') => {
+ self.chars.next();
+ match self.peek() {
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::LogicalOrAssign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::LogicalOr,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ )
+ }
+ }
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::BitwiseOrAssign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::BitwiseOr,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ },
+
+ '?' => match self.peek() {
+ Some('?') => {
+ self.chars.next();
+ match self.peek() {
+ Some('=') => {
+ self.chars.next();
+ return self.set_result(
+ TerminalId::CoalesceAssign,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::Coalesce,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ )
+ }
+ }
+ Some('.') => {
+ if let Some('0'..='9') = self.double_peek() {
+ return self.set_result(
+ TerminalId::QuestionMark,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ )
+ }
+ self.chars.next();
+ return self.set_result(
+ TerminalId::OptionalChain,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ );
+ }
+ _ => return self.set_result(
+ TerminalId::QuestionMark,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ }
+
+ '(' => return self.set_result(
+ TerminalId::OpenParenthesis,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ ')' => return self.set_result(
+ TerminalId::CloseParenthesis,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ ',' => return self.set_result(
+ TerminalId::Comma,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ ':' => return self.set_result(
+ TerminalId::Colon,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ ';' => return self.set_result(
+ TerminalId::Semicolon,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ '[' => return self.set_result(
+ TerminalId::OpenBracket,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ ']' => return self.set_result(
+ TerminalId::CloseBracket,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ '{' => return self.set_result(
+ TerminalId::OpenBrace,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+ '~' => return self.set_result(
+ TerminalId::BitwiseNot,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ ),
+
+ // Idents
+ '$' | '_' | 'a'..='z' | 'A'..='Z' => {
+ builder.push_matching(c);
+ return self.identifier_tail(start, builder);
+ }
+
+ '\\' => {
+ builder.force_allocation_without_current_ascii_char(&self);
+
+ let value = self.unicode_escape_sequence_after_backslash()?;
+ if !is_identifier_start(value) {
+ return Err(ParseError::IllegalCharacter(value).into());
+ }
+ builder.push_different(value);
+
+ return self.identifier_tail(start, builder);
+ }
+
+ '#' => {
+ if start == 0 {
+ // https://tc39.es/proposal-hashbang/out.html
+ // HashbangComment ::
+ // `#!` SingleLineCommentChars?
+ if let Some('!') = self.peek() {
+ self.skip_single_line_comment(&mut builder);
+ start = self.offset();
+ continue;
+ }
+ }
+
+ builder.push_matching(c);
+ return self.private_identifier(start, builder);
+ }
+
+ other if is_identifier_start(other) => {
+ builder.push_matching(other);
+ return self.identifier_tail(start, builder);
+ }
+
+ other => {
+ return Err(ParseError::IllegalCharacter(other).into());
+ }
+ }
+ }
+ self.set_result(
+ TerminalId::End,
+ SourceLocation::new(start, self.offset()),
+ TokenValue::None,
+ )
+ }
+
+ fn string_to_token_value(&mut self, s: &'alloc str) -> TokenValue {
+ let index = self.atoms.borrow_mut().insert(s);
+ TokenValue::Atom(index)
+ }
+
+ fn slice_to_token_value(&mut self, s: &'alloc str) -> TokenValue {
+ let index = self.slices.borrow_mut().push(s);
+ TokenValue::Slice(index)
+ }
+
+ fn numeric_result_to_advance_result(
+ &mut self,
+ s: &'alloc str,
+ start: usize,
+ result: NumericResult,
+ ) -> Result<'alloc, ()> {
+ let (terminal_id, value) = match result {
+ NumericResult::Int { base } => {
+ let n = parse_int(s, base).map_err(|s| ParseError::NotImplemented(s))?;
+ (TerminalId::NumericLiteral, TokenValue::Number(n))
+ }
+ NumericResult::Float => {
+ let n = parse_float(s).map_err(|s| ParseError::NotImplemented(s))?;
+ (TerminalId::NumericLiteral, TokenValue::Number(n))
+ }
+ NumericResult::BigInt { .. } => {
+ // FIXME
+ (TerminalId::BigIntLiteral, self.string_to_token_value(s))
+ }
+ };
+
+ self.set_result(
+ terminal_id,
+ SourceLocation::new(start, self.offset()),
+ value,
+ )
+ }
+}
+
+struct AutoCow<'alloc> {
+ start: &'alloc str,
+ value: Option<String<'alloc>>,
+}
+
+impl<'alloc> AutoCow<'alloc> {
+ fn new(lexer: &Lexer<'alloc>) -> Self {
+ AutoCow {
+ start: lexer.chars.as_str(),
+ value: None,
+ }
+ }
+
+ // Push a char that matches lexer.chars.next()
+ fn push_matching(&mut self, c: char) {
+ if let Some(text) = &mut self.value {
+ text.push(c);
+ }
+ }
+
+ // Push a different character than lexer.chars.next().
+ // force_allocation_without_current_ascii_char must be called before this.
+ fn push_different(&mut self, c: char) {
+ debug_assert!(self.value.is_some());
+ self.value.as_mut().unwrap().push(c)
+ }
+
+ // Force allocation of a String, excluding the current ASCII character,
+ // and return the reference to it
+ fn get_mut_string_without_current_ascii_char<'b>(
+ &'b mut self,
+ lexer: &'_ Lexer<'alloc>,
+ ) -> &'b mut String<'alloc> {
+ self.force_allocation_without_current_ascii_char(lexer);
+ self.value.as_mut().unwrap()
+ }
+
+ // Force allocation of a String, excluding the current ASCII character.
+ fn force_allocation_without_current_ascii_char(&mut self, lexer: &'_ Lexer<'alloc>) {
+ if self.value.is_some() {
+ return;
+ }
+
+ self.value = Some(String::from_str_in(
+ &self.start[..self.start.len() - lexer.chars.as_str().len() - 1],
+ lexer.allocator,
+ ));
+ }
+
+ // Check if the string contains a different character, such as an escape
+ // sequence
+ fn has_different(&self) -> bool {
+ self.value.is_some()
+ }
+
+ fn finish(&mut self, lexer: &Lexer<'alloc>) -> &'alloc str {
+ match self.value.take() {
+ Some(arena_string) => arena_string.into_bump_str(),
+ None => &self.start[..self.start.len() - lexer.chars.as_str().len()],
+ }
+ }
+
+ // Just like finish, but without pushing current char.
+ fn finish_without_push(&mut self, lexer: &Lexer<'alloc>) -> &'alloc str {
+ match self.value.take() {
+ Some(arena_string) => arena_string.into_bump_str(),
+ None => &self.start[..self.start.len() - lexer.chars.as_str().len() - 1],
+ }
+ }
+}
diff --git a/third_party/rust/jsparagus-parser/src/lib.rs b/third_party/rust/jsparagus-parser/src/lib.rs
new file mode 100644
index 0000000000..e78744afa5
--- /dev/null
+++ b/third_party/rust/jsparagus-parser/src/lib.rs
@@ -0,0 +1,111 @@
+#![cfg_attr(feature = "unstable", feature(test))]
+
+mod lexer;
+pub mod numeric_value;
+mod parser;
+mod queue_stack;
+mod simulator;
+mod unicode;
+mod unicode_data;
+
+#[cfg(test)]
+mod tests;
+
+extern crate arrayvec;
+extern crate jsparagus_ast as ast;
+extern crate jsparagus_generated_parser as generated_parser;
+extern crate jsparagus_json_log as json_log;
+
+use crate::parser::Parser;
+use ast::{
+ arena,
+ source_atom_set::SourceAtomSet,
+ source_slice_list::SourceSliceList,
+ types::{Module, Script},
+};
+use bumpalo;
+use generated_parser::{
+ AstBuilder, StackValue, TerminalId, START_STATE_MODULE, START_STATE_SCRIPT, TABLES,
+};
+pub use generated_parser::{ParseError, Result};
+use json_log::json_debug;
+use lexer::Lexer;
+use std::cell::RefCell;
+use std::rc::Rc;
+
+pub struct ParseOptions {}
+impl ParseOptions {
+ pub fn new() -> Self {
+ Self {}
+ }
+}
+
+pub fn parse_script<'alloc>(
+ allocator: &'alloc bumpalo::Bump,
+ source: &'alloc str,
+ _options: &ParseOptions,
+ atoms: Rc<RefCell<SourceAtomSet<'alloc>>>,
+ slices: Rc<RefCell<SourceSliceList<'alloc>>>,
+) -> Result<'alloc, arena::Box<'alloc, Script<'alloc>>> {
+ json_debug!({
+ "parse": "script",
+ });
+ Ok(parse(allocator, source, START_STATE_SCRIPT, atoms, slices)?.to_ast()?)
+}
+
+pub fn parse_module<'alloc>(
+ allocator: &'alloc bumpalo::Bump,
+ source: &'alloc str,
+ _options: &ParseOptions,
+ atoms: Rc<RefCell<SourceAtomSet<'alloc>>>,
+ slices: Rc<RefCell<SourceSliceList<'alloc>>>,
+) -> Result<'alloc, arena::Box<'alloc, Module<'alloc>>> {
+ json_debug!({
+ "parse": "module",
+ });
+ Ok(parse(allocator, source, START_STATE_MODULE, atoms, slices)?.to_ast()?)
+}
+
+fn parse<'alloc>(
+ allocator: &'alloc bumpalo::Bump,
+ source: &'alloc str,
+ start_state: usize,
+ atoms: Rc<RefCell<SourceAtomSet<'alloc>>>,
+ slices: Rc<RefCell<SourceSliceList<'alloc>>>,
+) -> Result<'alloc, StackValue<'alloc>> {
+ let mut tokens = Lexer::new(allocator, source.chars(), atoms.clone(), slices.clone());
+
+ TABLES.check();
+
+ let mut parser = Parser::new(AstBuilder::new(allocator, atoms, slices), start_state);
+
+ loop {
+ let t = tokens.next(&parser)?;
+ if t.terminal_id == TerminalId::End {
+ break;
+ }
+ parser.write_token(t)?;
+ }
+ parser.close(tokens.offset())
+}
+
+pub fn is_partial_script<'alloc>(
+ allocator: &'alloc bumpalo::Bump,
+ source: &'alloc str,
+ atoms: Rc<RefCell<SourceAtomSet<'alloc>>>,
+ slices: Rc<RefCell<SourceSliceList<'alloc>>>,
+) -> Result<'alloc, bool> {
+ let mut parser = Parser::new(
+ AstBuilder::new(allocator, atoms.clone(), slices.clone()),
+ START_STATE_SCRIPT,
+ );
+ let mut tokens = Lexer::new(allocator, source.chars(), atoms, slices);
+ loop {
+ let t = tokens.next(&parser)?;
+ if t.terminal_id == TerminalId::End {
+ break;
+ }
+ parser.write_token(t)?;
+ }
+ Ok(!parser.can_close())
+}
diff --git a/third_party/rust/jsparagus-parser/src/numeric_value.rs b/third_party/rust/jsparagus-parser/src/numeric_value.rs
new file mode 100644
index 0000000000..2fd5cab431
--- /dev/null
+++ b/third_party/rust/jsparagus-parser/src/numeric_value.rs
@@ -0,0 +1,160 @@
+//! Parse NumericLiteral.
+
+pub type ParseNumberResult = Result<f64, &'static str>;
+
+#[derive(Debug)]
+pub enum NumericLiteralBase {
+ Decimal,
+ Binary,
+ Octal,
+ Hex,
+}
+
+// The number of digits in 2**53 - 1 (integer part of f64).
+// 9007199254740991
+const F64_INT_DIGITS_MAX_LEN: usize = 16;
+// 11111111111111111111111111111111111111111111111111111
+const F64_INT_BIN_DIGITS_MAX_LEN: usize = 53;
+// 377777777777777777
+const F64_INT_OCT_DIGITS_MAX_LEN: usize = 18;
+// 1fffffffffffff
+const F64_INT_HEX_DIGITS_MAX_LEN: usize = 14;
+
+// To avoid allocating extra buffer when '_' is present, integer cases are
+// handled without Rust standard `parse` function, as long as the value
+// won't overflow the integer part of f64.
+fn parse_decimal_int(s: &str) -> ParseNumberResult {
+ debug_assert!(!s.is_empty());
+
+ // NOTE: Maximum length cannot be handled.
+ if s.len() >= F64_INT_DIGITS_MAX_LEN {
+ // Fallback to float function that can handle all cases.
+ return parse_float(s);
+ }
+
+ let src = s.as_bytes();
+
+ let mut result = 0.0;
+ for &c in src {
+ match c {
+ b'0'..=b'9' => {
+ let n = c - b'0';
+ result = result * 10.0 + n as f64;
+ }
+ b'_' => {}
+ _ => panic!("invalid syntax"),
+ }
+ }
+ Ok(result)
+}
+
+fn parse_binary(s: &str) -> ParseNumberResult {
+ debug_assert!(!s.is_empty());
+
+ // NOTE: Maximum length can be handled.
+ if s.len() > F64_INT_BIN_DIGITS_MAX_LEN {
+ return Err("too long binary literal");
+ }
+
+ let src = s.as_bytes();
+
+ let mut result = 0.0;
+ for &c in src {
+ match c {
+ b'0'..=b'1' => {
+ let n = c - b'0';
+ result = result * 2.0 + n as f64;
+ }
+ b'_' => {}
+ _ => panic!("invalid syntax"),
+ }
+ }
+ Ok(result)
+}
+
+fn parse_octal(s: &str) -> ParseNumberResult {
+ debug_assert!(!s.is_empty());
+
+ // NOTE: Maximum length cannot be handled.
+ if s.len() >= F64_INT_OCT_DIGITS_MAX_LEN {
+ return Err("too long octal literal");
+ }
+
+ let src = s.as_bytes();
+
+ let mut result = 0.0;
+ for &c in src {
+ match c {
+ b'0'..=b'7' => {
+ let n = c - b'0';
+ result = result * 8.0 + n as f64;
+ }
+ b'_' => {}
+ _ => panic!("invalid syntax"),
+ }
+ }
+ Ok(result)
+}
+
+fn parse_hex(s: &str) -> ParseNumberResult {
+ debug_assert!(!s.is_empty());
+
+ // NOTE: Maximum length cannot be handled.
+ if s.len() >= F64_INT_HEX_DIGITS_MAX_LEN {
+ return Err("too long hex literal");
+ }
+
+ let src = s.as_bytes();
+
+ let mut result = 0.0;
+ for &c in src {
+ match c {
+ b'0'..=b'9' => {
+ let n = c - b'0';
+ result = result * 16.0 + n as f64;
+ }
+ b'A'..=b'F' => {
+ let n = c - b'A' + 10;
+ result = result * 16.0 + n as f64;
+ }
+ b'a'..=b'f' => {
+ let n = c - b'a' + 10;
+ result = result * 16.0 + n as f64;
+ }
+ b'_' => {}
+ _ => panic!("invalid syntax"),
+ }
+ }
+ Ok(result)
+}
+
+/// Parse integer NumericLiteral.
+///
+/// NonDecimalIntegerLiteral should contain the leading '0x' etc.
+///
+/// FIXME: LegacyOctalIntegerLiteral is not supported.
+pub fn parse_int<'alloc>(s: &str, kind: NumericLiteralBase) -> ParseNumberResult {
+ match kind {
+ NumericLiteralBase::Decimal => parse_decimal_int(s),
+ NumericLiteralBase::Binary => parse_binary(&s[2..]),
+ NumericLiteralBase::Octal => parse_octal(&s[2..]),
+ NumericLiteralBase::Hex => parse_hex(&s[2..]),
+ }
+}
+
+fn parse_float_with_underscore(s: &str) -> ParseNumberResult {
+ let filtered: String = s.chars().filter(|c| *c != '_').collect();
+
+ filtered
+ .parse::<f64>()
+ .map_err(|_| "too long decimal literal")
+}
+
+/// Parse non-integer NumericLiteral.
+pub fn parse_float(s: &str) -> ParseNumberResult {
+ if s.contains('_') {
+ return parse_float_with_underscore(s);
+ }
+
+ s.parse::<f64>().map_err(|_| "too long decimal literal")
+}
diff --git a/third_party/rust/jsparagus-parser/src/parser.rs b/third_party/rust/jsparagus-parser/src/parser.rs
new file mode 100644
index 0000000000..c9f12a56e7
--- /dev/null
+++ b/third_party/rust/jsparagus-parser/src/parser.rs
@@ -0,0 +1,262 @@
+use crate::queue_stack::QueueStack;
+use crate::simulator::Simulator;
+use ast::arena;
+use ast::SourceLocation;
+use generated_parser::{
+ full_actions, AstBuilder, AstBuilderDelegate, ErrorCode, ParseError, ParserTrait, Result,
+ StackValue, TermValue, TerminalId, Token, TABLES,
+};
+use json_log::json_trace;
+
+pub struct Parser<'alloc> {
+ /// Vector of states visited in the LR parse table.
+ state_stack: Vec<usize>,
+ /// Stack and Queue of terms and their associated values. The Queue
+ /// corresponds to terms which are added as lookahead as well as terms which
+ /// are replayed, and the stack matches the state_stack.
+ node_stack: QueueStack<TermValue<StackValue<'alloc>>>,
+ /// Build the AST stored in the TermValue vectors.
+ handler: AstBuilder<'alloc>,
+}
+
+impl<'alloc> AstBuilderDelegate<'alloc> for Parser<'alloc> {
+ fn ast_builder_refmut(&mut self) -> &mut AstBuilder<'alloc> {
+ &mut self.handler
+ }
+}
+
+impl<'alloc> ParserTrait<'alloc, StackValue<'alloc>> for Parser<'alloc> {
+ fn shift(&mut self, tv: TermValue<StackValue<'alloc>>) -> Result<'alloc, bool> {
+ // The shift function should exit either by accepting the input or
+ // emptying its queue of lookahead.
+ debug_assert!(self.node_stack.queue_empty());
+ self.node_stack.enqueue(tv);
+ // Shift the new terminal/nonterminal and its associated value.
+ json_trace!({ "enter": "shift" });
+ let mut state = self.state();
+ debug_assert!(state < TABLES.shift_count);
+ while !self.node_stack.queue_empty() {
+ let term_index: usize = self.node_stack.next().unwrap().term.into();
+ debug_assert!(term_index < TABLES.shift_width);
+ let index = state * TABLES.shift_width + term_index;
+ let goto = TABLES.shift_table[index];
+ json_trace!({
+ "from": state,
+ "to": goto,
+ "term": format!("{:?}", { let s: &'static str = tv.term.into(); s }),
+ });
+ if goto < 0 {
+ self.node_stack.shift();
+ let tv = self.node_stack.pop().unwrap();
+ // Error handling is in charge of shifting an ErrorSymbol from the
+ // current state.
+ self.try_error_handling(tv)?;
+ continue;
+ }
+ state = goto as usize;
+ self.shift_replayed(state);
+ // Execute any actions, such as reduce actions ast builder actions.
+ if state >= TABLES.shift_count {
+ assert!(state < TABLES.action_count + TABLES.shift_count);
+ json_trace!({ "action": state });
+ if full_actions(self, state)? {
+ return Ok(true);
+ }
+ state = self.state();
+ }
+ debug_assert!(state < TABLES.shift_count);
+ }
+ Ok(false)
+ }
+ #[inline(always)]
+ fn shift_replayed(&mut self, state: usize) {
+ // let term_index: usize = self.node_stack.next().unwrap().term.into();
+ // assert!(term_index < TABLES.shift_width);
+ // let from_state = self.state();
+ // let index = from_state * TABLES.shift_width + term_index;
+ // let goto = TABLES.shift_table[index];
+ // assert!((goto as usize) == state);
+ self.state_stack.push(state);
+ self.node_stack.shift();
+ }
+ fn unshift(&mut self) {
+ self.state_stack.pop().unwrap();
+ self.node_stack.unshift()
+ }
+ fn pop(&mut self) -> TermValue<StackValue<'alloc>> {
+ self.state_stack.pop().unwrap();
+ self.node_stack.pop().unwrap()
+ }
+ fn replay(&mut self, tv: TermValue<StackValue<'alloc>>) {
+ self.node_stack.push_next(tv)
+ }
+ fn epsilon(&mut self, state: usize) {
+ *self.state_stack.last_mut().unwrap() = state;
+ }
+ fn top_state(&self) -> usize {
+ self.state()
+ }
+ fn check_not_on_new_line(&mut self, peek: usize) -> Result<'alloc, bool> {
+ let sv = {
+ let stack = self.node_stack.stack_slice();
+ &stack[stack.len() - peek].value
+ };
+ if let StackValue::Token(ref token) = sv {
+ if !token.is_on_new_line {
+ return Ok(true);
+ }
+ self.rewind(peek - 1);
+ let tv = self.pop();
+ self.try_error_handling(tv)?;
+ return Ok(false);
+ }
+ Err(ParseError::NoLineTerminatorHereExpectedToken.into())
+ }
+}
+
+impl<'alloc> Parser<'alloc> {
+ pub fn new(handler: AstBuilder<'alloc>, entry_state: usize) -> Self {
+ TABLES.check();
+ assert!(entry_state < TABLES.shift_count);
+ let mut state_stack = Vec::with_capacity(128);
+ state_stack.push(entry_state);
+
+ Self {
+ state_stack,
+ node_stack: QueueStack::with_capacity(128),
+ handler,
+ }
+ }
+
+ fn state(&self) -> usize {
+ *self.state_stack.last().unwrap()
+ }
+
+ pub fn write_token(&mut self, token: arena::Box<'alloc, Token>) -> Result<'alloc, ()> {
+ json_trace!({
+ "method": "write_token",
+ "is_on_new_line": token.is_on_new_line,
+ "start": token.loc.start,
+ "end": token.loc.end,
+ });
+ // Shift the token with the associated StackValue.
+ let term = token.terminal_id.into();
+ let accept = self.shift(TermValue {
+ term,
+ value: StackValue::Token(token),
+ })?;
+ // JavaScript grammar accepts empty inputs, therefore we can never
+ // accept any program before receiving a TerminalId::End.
+ assert!(!accept);
+ Ok(())
+ }
+
+ pub fn close(&mut self, position: usize) -> Result<'alloc, StackValue<'alloc>> {
+ // Shift the End terminal with the associated StackValue.
+ json_trace!({
+ "method": "close",
+ "position": position,
+ });
+ let loc = SourceLocation::new(position, position);
+ let token = Token::basic_token(TerminalId::End, loc);
+ let accept = self.shift(TermValue {
+ term: TerminalId::End.into(),
+ value: StackValue::Token(self.handler.alloc(token)),
+ })?;
+ // Adding a TerminalId::End would either lead to a parse error, or to
+ // accepting the current input. In which case we return matching node
+ // value.
+ assert!(accept);
+
+ // We can either reduce a Script/Module, or a Script/Module followed by
+ // an <End> terminal.
+ assert!(self.node_stack.stack_len() >= 1);
+ assert!(self.node_stack.stack_len() <= 2);
+ if self.node_stack.stack_len() > 1 {
+ self.node_stack.pop();
+ }
+ Ok(self.node_stack.pop().unwrap().value)
+ }
+
+ pub(crate) fn parse_error(t: &Token) -> ParseError<'alloc> {
+ if t.terminal_id == TerminalId::End {
+ ParseError::UnexpectedEnd
+ } else {
+ ParseError::SyntaxError(t.clone())
+ }
+ }
+
+ fn try_error_handling(&mut self, t: TermValue<StackValue<'alloc>>) -> Result<'alloc, bool> {
+ json_trace!({
+ "try_error_handling_term": format!("{}", {
+ let s: &'static str = t.term.into();
+ s
+ }),
+ });
+ if let StackValue::Token(ref token) = t.value {
+ // Error tokens might them-self cause more errors to be reported.
+ // This happens due to the fact that the ErrorToken can be replayed,
+ // and while the ErrorToken might be in the lookahead rules, it
+ // might not be in the shifted terms coming after the reduced
+ // nonterminal.
+ if t.term == TerminalId::ErrorToken.into() {
+ return Err(Self::parse_error(token).into());
+ }
+
+ // Otherwise, check if the current rule accept an Automatic
+ // Semi-Colon insertion (ASI).
+ let state = self.state();
+ assert!(state < TABLES.shift_count);
+ let error_code = TABLES.error_codes[state];
+ if let Some(error_code) = error_code {
+ let err_token = (*token).clone();
+ Self::recover(token, error_code)?;
+ self.replay(t);
+ let err_token = self.handler.alloc(err_token);
+ self.replay(TermValue {
+ term: TerminalId::ErrorToken.into(),
+ value: StackValue::Token(err_token),
+ });
+ return Ok(false);
+ }
+ // On error, don't attempt error handling again.
+ return Err(Self::parse_error(token).into());
+ }
+ Err(ParseError::ParserCannotUnpackToken.into())
+ }
+
+ pub(crate) fn recover(t: &Token, error_code: ErrorCode) -> Result<'alloc, ()> {
+ match error_code {
+ ErrorCode::Asi => {
+ if t.is_on_new_line
+ || t.terminal_id == TerminalId::End
+ || t.terminal_id == TerminalId::CloseBrace
+ {
+ Ok(())
+ } else {
+ Err(Self::parse_error(t).into())
+ }
+ }
+ ErrorCode::DoWhileAsi => Ok(()),
+ }
+ }
+
+ fn simulator<'a>(&'a self) -> Simulator<'alloc, 'a> {
+ assert_eq!(self.node_stack.queue_len(), 0);
+ Simulator::new(&self.state_stack, self.node_stack.stack_slice())
+ }
+
+ pub fn can_accept_terminal(&self, t: TerminalId) -> bool {
+ let result = self.simulator().write_token(t).is_ok();
+ json_trace!({
+ "can_accept": result,
+ "terminal": format!("{:?}", t),
+ });
+ result
+ }
+
+ /// Return true if self.close() would succeed.
+ pub fn can_close(&self) -> bool {
+ self.simulator().close(0).is_ok()
+ }
+}
diff --git a/third_party/rust/jsparagus-parser/src/queue_stack.rs b/third_party/rust/jsparagus-parser/src/queue_stack.rs
new file mode 100644
index 0000000000..f56e2e1b66
--- /dev/null
+++ b/third_party/rust/jsparagus-parser/src/queue_stack.rs
@@ -0,0 +1,256 @@
+//! This module implements a Stack, which is useful for implementing a parser
+//! with variable lookahead, as it would allow to pop elements which are below
+//! the top-element, and maintain a top counter which would be in charge of
+//! moving these elements once shifted.
+use std::ptr;
+
+/// This container implements a stack and a queue in a single vector:
+/// - stack: buf[..top]
+/// - queue: buf[top + gap..]
+///
+/// This structure is meant to avoid moving data when the head of the queue is
+/// transfered to the top of the stack. Also, sometimes we need to set items
+/// aside from the top of a stack, and then push them back onto the stack later.
+/// The queue is for storing these set-aside values. Since they live in the same
+/// buffer as the stack, values can be "set aside" and "pushed back on" without
+/// moving them at all.
+///
+/// In the context of an LR parser, the stack contains shifted elements, and the
+/// queue contains the lookahead. If the lexer is completely independent of the
+/// parser, all tokens could be queued before starting the parser.
+///
+/// The following statements describe how this structure is meant to be used and
+/// is described as a stack and a queue displayed as follow:
+/// [...stack...] <gap> [...queue...]
+///
+/// New elements are always inserted in the queue with `enqueue`:
+/// [a, b] <no gap> []
+/// * enqueue(c)
+/// [a, b] <no gap> [c]
+///
+/// These elements are then moved to the stack with `shift`:
+/// [a, b] <no gap> [c]
+/// * shift()
+/// [a, b, c] <no gap> []
+///
+/// The stack top can be set aside in the queue with `unshift`:
+/// [a, b, c] <no gap> []
+/// * unshift()
+/// [a, b] <no gap> [c]
+///
+/// The stack top can be removed with `pop`:
+/// [a, b] <no gap> [c]
+/// * pop() -> b
+/// [a] <gap: 1> [c]
+/// * pop() -> a
+/// [] <gap: 2> [c]
+///
+/// New elements can be added to the front of the queue with `push_next`, which
+/// also moves the content of the queue to ensure that `shift` can be used
+/// afterward:
+/// [] <gap: 2> [c]
+/// * push_next(d)
+/// [] <no gap> [d, c]
+///
+/// These operations are used by LR parser, to add lookahead with `enqueue`, to
+/// shift tokens with `shift`, to save tokens to be replayed with `unshift`, to
+/// reduce a set of tokens and replace it by a non-terminal with `pop` and
+/// `push_next`.
+pub struct QueueStack<T> {
+ /// Buffer containing the stack and the queue.
+ ///
+ /// [a, b, c, d, e, f, g, h, i, j]
+ /// '-----------'<------>'-----'
+ /// stack ^ gap queue
+ /// |
+ /// top -'
+ buf: Vec<T>,
+ /// Length of the stack, self.buf[top - 1] being the last element of the
+ /// stack.
+ top: usize,
+ /// Length of the gap between the stack top and the queue head.
+ gap: usize,
+}
+
+impl<T> QueueStack<T> {
+ /// Create a queue and stack with the given number of reserved elements.
+ pub fn with_capacity(n: usize) -> QueueStack<T> {
+ QueueStack {
+ buf: Vec::with_capacity(n),
+ top: 0,
+ gap: 0,
+ }
+ }
+
+ /// Add an element to the back of the queue.
+ pub fn enqueue(&mut self, value: T) {
+ self.buf.push(value);
+ }
+
+ /// Add an element to the front of the queue.
+ pub fn push_next(&mut self, value: T) {
+ self.compact_with_gap(1);
+ self.gap -= 1;
+ unsafe {
+ // Write over the gap without reading nor dropping the old entry.
+ let ptr = self.buf.as_mut_ptr().add(self.top + self.gap);
+ ptr.write(value);
+ }
+ }
+
+ /// Whether elements can be shifted.
+ pub fn can_shift(&self) -> bool {
+ self.gap == 0 && !self.queue_empty()
+ }
+
+ /// Whether elements can be unshifted.
+ pub fn can_unshift(&self) -> bool {
+ self.gap == 0 && !self.stack_empty()
+ }
+
+ /// Transfer an element from the top of the stack to the front of the queue.
+ ///
+ /// The gap must be empty. This does not move the value from one address to
+ /// another in memory; it just adjusts the boundary between the stack and
+ /// the queue.
+ ///
+ /// # Panics
+ /// If the stack is empty or there is a gap.
+ pub fn unshift(&mut self) {
+ assert!(self.can_unshift());
+ self.top -= 1;
+ }
+
+ /// Transfer an element from the front of the queue to the top of the stack.
+ ///
+ /// The gap must be empty. This does not move the value from one address to
+ /// another in memory; it just adjusts the boundary between the stack and
+ /// the queue.
+ ///
+ /// # Panics
+ /// If the queue is empty or there is a gap.
+ #[inline(always)]
+ pub fn shift(&mut self) {
+ assert!(self.can_shift());
+ self.top += 1;
+ }
+
+ /// Remove the top element of the stack and return it, or None if the stack
+ /// is empty.
+ ///
+ /// This increases the gap size by 1.
+ pub fn pop(&mut self) -> Option<T> {
+ if self.top == 0 {
+ None
+ } else {
+ self.top -= 1;
+ self.gap += 1;
+ unsafe {
+ // Take ownership of the content.
+ let ptr = self.buf.as_mut_ptr().add(self.top);
+ Some(ptr.read())
+ }
+ }
+ }
+
+ /// Set the gap size to `new_gap`, memmove-ing the contents of the queue as
+ /// needed.
+ fn compact_with_gap(&mut self, new_gap: usize) {
+ assert!(new_gap <= (std::isize::MAX as usize));
+ assert!(self.gap <= (std::isize::MAX as usize));
+ let diff = new_gap as isize - self.gap as isize;
+ if diff == 0 {
+ return;
+ }
+ // Ensure there is enough capacity.
+ if diff > 0 {
+ self.buf.reserve(diff as usize);
+ }
+ // Number of elements to be copied.
+ let count = self.queue_len();
+ let new_len = self.top + new_gap + count;
+ assert!(new_len < self.buf.capacity());
+ unsafe {
+ let src_ptr = self.buf.as_mut_ptr().add(self.top + self.gap);
+ let dst_ptr = src_ptr.offset(diff);
+
+ // Shift everything down/up to have the expected gap.
+ ptr::copy(src_ptr, dst_ptr, count);
+
+ // Update the buffer length to newly copied elements.
+ self.buf.set_len(new_len);
+ // Update the gap to the new gap value.
+ self.gap = new_gap;
+ }
+ debug_assert_eq!(self.queue_len(), count);
+ }
+
+ /// Returns a reference to the front element of the queue.
+ pub fn next(&self) -> Option<&T> {
+ if self.queue_empty() {
+ None
+ } else {
+ Some(&self.buf[self.top + self.gap])
+ }
+ }
+
+ /// Returns a reference to the top element of the stack.
+ #[allow(dead_code)]
+ pub fn top(&self) -> Option<&T> {
+ if self.top == 0 {
+ None
+ } else {
+ Some(&self.buf[self.top - 1])
+ }
+ }
+
+ /// Returns a mutable reference to the top of the stack.
+ #[allow(dead_code)]
+ pub fn top_mut(&mut self) -> Option<&mut T> {
+ if self.top == 0 {
+ None
+ } else {
+ Some(&mut self.buf[self.top - 1])
+ }
+ }
+
+ /// Number of elements in the stack.
+ pub fn stack_len(&self) -> usize {
+ self.top
+ }
+
+ /// Number of elements in the queue.
+ pub fn queue_len(&self) -> usize {
+ self.buf.len() - self.top - self.gap
+ }
+
+ /// Whether the stack is empty.
+ pub fn stack_empty(&self) -> bool {
+ self.top == 0
+ }
+
+ /// Whether the queue is empty.
+ pub fn queue_empty(&self) -> bool {
+ self.top == self.buf.len()
+ }
+
+ /// Create a slice which corresponds the stack.
+ pub fn stack_slice(&self) -> &[T] {
+ &self.buf[..self.top]
+ }
+
+ /// Create a slice which corresponds the queue.
+ #[allow(dead_code)]
+ pub fn queue_slice(&self) -> &[T] {
+ &self.buf[self.top + self.gap..]
+ }
+}
+
+impl<T> Drop for QueueStack<T> {
+ fn drop(&mut self) {
+ // QueueStack contains a gap of non-initialized values, before releasing
+ // the vector, we move all initialized values from the queue into the
+ // remaining gap.
+ self.compact_with_gap(0);
+ }
+}
diff --git a/third_party/rust/jsparagus-parser/src/simulator.rs b/third_party/rust/jsparagus-parser/src/simulator.rs
new file mode 100644
index 0000000000..0e060fd5c1
--- /dev/null
+++ b/third_party/rust/jsparagus-parser/src/simulator.rs
@@ -0,0 +1,211 @@
+//! Simulates parser execution, for a single token of input, without incurring
+//! any side effects.
+//!
+//! This is basically a copy of the parser.rs source code with calls to
+//! generated_parser::reduce, and stack bookkeeping, omitted.
+
+use crate::parser::Parser;
+use arrayvec::ArrayVec;
+use ast::SourceLocation;
+use generated_parser::{
+ noop_actions, ParseError, ParserTrait, Result, StackValue, TermValue, TerminalId, Token, TABLES,
+};
+
+/// The Simulator is used to check whether we can shift one token, either to
+/// check what might be accepted, or to check whether we can End parsing now.
+/// This is used by the REPL to verify whether or not we can end the input.
+pub struct Simulator<'alloc, 'parser> {
+ /// Define the top of the immutable stack.
+ sp: usize,
+ /// Immutable state stack coming from the forked parser.
+ state_stack: &'parser [usize],
+ /// Immuatable term stack coming from the forked parser.
+ node_stack: &'parser [TermValue<StackValue<'alloc>>],
+ /// Mutable state stack used by the simulator on top of the immutable
+ /// parser's state stack.
+ ///
+ /// Uses a fixed-size array as the number of lookahead is bounded to a lower
+ /// value, panics otherwise.
+ sim_state_stack: ArrayVec<usize, 4>,
+ /// Mutable term stack used by the simulator on top of the immutable
+ /// parser's term stack.
+ ///
+ /// Uses a fixed-size array as the number of lookahead is bounded to a lower
+ /// value, panics otherwise.
+ sim_node_stack: ArrayVec<TermValue<()>, 4>,
+ /// Mutable term stack used by the simulator for replaying terms when
+ /// reducing non-terminals are replaying lookahead terminals.
+ ///
+ /// Uses a fixed-size array as the number of lookahead is bounded to a lower
+ /// value, panics otherwise.
+ replay_stack: ArrayVec<TermValue<()>, 4>,
+}
+
+impl<'alloc, 'parser> ParserTrait<'alloc, ()> for Simulator<'alloc, 'parser> {
+ fn shift(&mut self, tv: TermValue<()>) -> Result<'alloc, bool> {
+ // Shift the new terminal/nonterminal and its associated value.
+ let mut state = self.state();
+ assert!(state < TABLES.shift_count);
+ let mut tv = tv;
+ loop {
+ let term_index: usize = tv.term.into();
+ assert!(term_index < TABLES.shift_width);
+ let index = state * TABLES.shift_width + term_index;
+ let goto = TABLES.shift_table[index];
+ if goto < 0 {
+ // Error handling is in charge of shifting an ErrorSymbol from the
+ // current state.
+ self.try_error_handling(tv)?;
+ tv = self.replay_stack.pop().unwrap();
+ continue;
+ }
+ state = goto as usize;
+ self.sim_state_stack.push(state);
+ self.sim_node_stack.push(tv);
+ // Execute any actions, such as reduce actions.
+ if state >= TABLES.shift_count {
+ assert!(state < TABLES.action_count + TABLES.shift_count);
+ if noop_actions(self, state)? {
+ return Ok(true);
+ }
+ state = self.state();
+ }
+ assert!(state < TABLES.shift_count);
+ if let Some(tv_temp) = self.replay_stack.pop() {
+ tv = tv_temp;
+ } else {
+ break;
+ }
+ }
+ Ok(false)
+ }
+ fn shift_replayed(&mut self, state: usize) {
+ let tv = self.replay_stack.pop().unwrap();
+ self.sim_state_stack.push(state);
+ self.sim_node_stack.push(tv);
+ }
+ fn unshift(&mut self) {
+ let tv = self.pop();
+ self.replay(tv)
+ }
+ fn pop(&mut self) -> TermValue<()> {
+ if let Some(s) = self.sim_node_stack.pop() {
+ self.sim_state_stack.pop();
+ return s;
+ }
+ let t = self.node_stack[self.sp - 1].term;
+ self.sp -= 1;
+ TermValue { term: t, value: () }
+ }
+ fn replay(&mut self, tv: TermValue<()>) {
+ self.replay_stack.push(tv)
+ }
+ fn epsilon(&mut self, state: usize) {
+ if self.sim_state_stack.is_empty() {
+ self.sim_state_stack.push(self.state_stack[self.sp]);
+ self.sim_node_stack.push(TermValue {
+ term: self.node_stack[self.sp - 1].term,
+ value: (),
+ });
+ self.sp -= 1;
+ }
+ *self.sim_state_stack.last_mut().unwrap() = state;
+ }
+ fn top_state(&self) -> usize {
+ self.state()
+ }
+ fn check_not_on_new_line(&mut self, _peek: usize) -> Result<'alloc, bool> {
+ Ok(true)
+ }
+}
+
+impl<'alloc, 'parser> Simulator<'alloc, 'parser> {
+ pub fn new(
+ state_stack: &'parser [usize],
+ node_stack: &'parser [TermValue<StackValue<'alloc>>],
+ ) -> Simulator<'alloc, 'parser> {
+ let sp = state_stack.len() - 1;
+ assert_eq!(state_stack.len(), node_stack.len() + 1);
+ Simulator {
+ sp,
+ state_stack,
+ node_stack,
+ sim_state_stack: ArrayVec::new(),
+ sim_node_stack: ArrayVec::new(),
+ replay_stack: ArrayVec::new(),
+ }
+ }
+
+ fn state(&self) -> usize {
+ if let Some(res) = self.sim_state_stack.last() {
+ *res
+ } else {
+ self.state_stack[self.sp]
+ }
+ }
+
+ pub fn write_token(&mut self, t: TerminalId) -> Result<'alloc, ()> {
+ // Shift the token with the associated StackValue.
+ let accept = self.shift(TermValue {
+ term: t.into(),
+ value: (),
+ })?;
+ // JavaScript grammar accepts empty inputs, therefore we can never
+ // accept any program before receiving a TerminalId::End.
+ assert!(!accept);
+ Ok(())
+ }
+
+ pub fn close(&mut self, _position: usize) -> Result<'alloc, ()> {
+ // Shift the End terminal with the associated StackValue.
+ let accept = self.shift(TermValue {
+ term: TerminalId::End.into(),
+ value: (),
+ })?;
+ // Adding a TerminalId::End would either lead to a parse error, or to
+ // accepting the current input. In which case we return matching node
+ // value.
+ assert!(accept);
+
+ // We can either reduce a Script/Module, or a Script/Module followed by
+ // an <End> terminal.
+ assert!(self.sp + self.sim_node_stack.len() >= 1);
+ Ok(())
+ }
+
+ // Simulate the action of Parser::try_error_handling.
+ fn try_error_handling(&mut self, t: TermValue<()>) -> Result<'alloc, bool> {
+ if t.term.is_terminal() {
+ let term = t.term.to_terminal();
+ let bogus_loc = SourceLocation::new(0, 0);
+ let token = &Token::basic_token(term, bogus_loc);
+
+ // Error tokens might them-self cause more errors to be reported.
+ // This happens due to the fact that the ErrorToken can be replayed,
+ // and while the ErrorToken might be in the lookahead rules, it
+ // might not be in the shifted terms coming after the reduced
+ // nonterminal.
+ if term == TerminalId::ErrorToken {
+ return Err(Parser::parse_error(token).into());
+ }
+
+ // Otherwise, check if the current rule accept an Automatic
+ // Semi-Colon insertion (ASI).
+ let state = self.state();
+ assert!(state < TABLES.shift_count);
+ let error_code = TABLES.error_codes[state];
+ if let Some(error_code) = error_code {
+ Parser::recover(token, error_code)?;
+ self.replay(t);
+ self.replay(TermValue {
+ term: TerminalId::ErrorToken.into(),
+ value: (),
+ });
+ return Ok(false);
+ }
+ return Err(Parser::parse_error(token).into());
+ }
+ // On error, don't attempt error handling again.
+ Err(ParseError::ParserCannotUnpackToken.into())
+ }
+}
diff --git a/third_party/rust/jsparagus-parser/src/tests.rs b/third_party/rust/jsparagus-parser/src/tests.rs
new file mode 100644
index 0000000000..7953dd7554
--- /dev/null
+++ b/third_party/rust/jsparagus-parser/src/tests.rs
@@ -0,0 +1,875 @@
+use std::iter;
+
+use crate::lexer::Lexer;
+use crate::parser::Parser;
+use crate::{parse_script, ParseOptions};
+use ast::source_atom_set::SourceAtomSet;
+use ast::source_slice_list::SourceSliceList;
+use ast::{arena, source_location::SourceLocation, types::*};
+use bumpalo::{self, Bump};
+use generated_parser::{self, AstBuilder, ParseError, Result, TerminalId};
+use std::cell::RefCell;
+use std::rc::Rc;
+
+#[cfg(all(feature = "unstable", test))]
+mod benchmarks {
+ extern crate test;
+
+ use std::fs::File;
+ use std::io::Read;
+ use test::Bencher;
+
+ use crate::lexer::Lexer;
+ use crate::parse_script;
+
+ #[bench]
+ fn bench_parse_grammar(b: &mut Bencher) {
+ let mut buffer = fs::read_to_string("../vue.js").expect("reading test file");
+ b.iter(|| {
+ let lexer = Lexer::new(buffer.chars());
+ parse_script(lexer).unwrap();
+ });
+ }
+}
+
+trait IntoChunks<'a> {
+ type Chunks: Iterator<Item = &'a str>;
+ fn into_chunks(self) -> Self::Chunks;
+}
+
+impl<'a> IntoChunks<'a> for &'a str {
+ type Chunks = iter::Once<&'a str>;
+ fn into_chunks(self) -> Self::Chunks {
+ iter::once(self)
+ }
+}
+
+impl<'a> IntoChunks<'a> for &'a Vec<&'a str> {
+ type Chunks = iter::Cloned<std::slice::Iter<'a, &'a str>>;
+ fn into_chunks(self) -> Self::Chunks {
+ self.iter().cloned()
+ }
+}
+
+// Glue all the chunks together. XXX TODO Once the lexer supports chunks,
+// we'll reimplement this to feed the code to the lexer one chunk at a time.
+fn chunks_to_string<'a, T: IntoChunks<'a>>(code: T) -> String {
+ let mut buf = String::new();
+ for chunk in code.into_chunks() {
+ buf.push_str(chunk);
+ }
+ buf
+}
+
+fn try_parse<'alloc, 'source, Source>(
+ allocator: &'alloc Bump,
+ code: Source,
+) -> Result<'alloc, arena::Box<'alloc, Script<'alloc>>>
+where
+ Source: IntoChunks<'source>,
+{
+ let buf = arena::alloc_str(allocator, &chunks_to_string(code));
+ let options = ParseOptions::new();
+ let atoms = Rc::new(RefCell::new(SourceAtomSet::new()));
+ let slices = Rc::new(RefCell::new(SourceSliceList::new()));
+ parse_script(allocator, &buf, &options, atoms, slices)
+}
+
+fn assert_parses<'alloc, T: IntoChunks<'alloc>>(code: T) {
+ let allocator = &Bump::new();
+ try_parse(allocator, code).unwrap();
+}
+
+fn assert_error<'alloc, T: IntoChunks<'alloc>>(code: T) {
+ let allocator = &Bump::new();
+ assert!(match try_parse(allocator, code).map_err(|e| *e) {
+ Err(ParseError::NotImplemented(_)) => panic!("expected error, got NotImplemented"),
+ Err(_) => true,
+ Ok(ast) => panic!("assertion failed: SUCCESS error: {:?}", ast),
+ });
+}
+
+fn assert_syntax_error<'alloc, T: IntoChunks<'alloc>>(code: T) {
+ let allocator = &Bump::new();
+ assert!(match try_parse(allocator, code).map_err(|e| *e) {
+ Err(ParseError::SyntaxError(_)) => true,
+ Err(other) => panic!("unexpected error: {:?}", other),
+ Ok(ast) => panic!("assertion failed: SUCCESS error: {:?}", ast),
+ });
+}
+
+fn assert_not_implemented<'alloc, T: IntoChunks<'alloc>>(code: T) {
+ let allocator = &Bump::new();
+ assert!(match try_parse(allocator, code).map_err(|e| *e) {
+ Err(ParseError::NotImplemented(_)) => true,
+ Err(other) => panic!("unexpected error: {:?}", other),
+ Ok(ast) => panic!("assertion failed: SUCCESS error: {:?}", ast),
+ });
+}
+
+fn assert_illegal_character<'alloc, T: IntoChunks<'alloc>>(code: T) {
+ let allocator = &Bump::new();
+ assert!(match try_parse(allocator, code).map_err(|e| *e) {
+ Err(ParseError::IllegalCharacter(_)) => true,
+ Err(other) => panic!("unexpected error: {:?}", other),
+ Ok(ast) => panic!("assertion failed: SUCCESS error: {:?}", ast),
+ });
+}
+
+fn assert_error_eq<'alloc, T: IntoChunks<'alloc>>(code: T, expected: ParseError) {
+ let allocator = &Bump::new();
+ let result = try_parse(allocator, code);
+ assert!(result.is_err());
+ assert_eq!(*result.unwrap_err(), expected);
+}
+
+fn assert_incomplete<'alloc, T: IntoChunks<'alloc>>(code: T) {
+ let allocator = &Bump::new();
+ let result = try_parse(allocator, code);
+ assert!(result.is_err());
+ assert_eq!(*result.unwrap_err(), ParseError::UnexpectedEnd);
+}
+
+// Assert that `left` and `right`, when parsed as ES Modules, consist of the
+// same sequence of tokens (although possibly at different offsets).
+fn assert_same_tokens<'alloc>(left: &str, right: &str) {
+ let allocator = &Bump::new();
+ let left_atoms = Rc::new(RefCell::new(SourceAtomSet::new()));
+ let left_slices = Rc::new(RefCell::new(SourceSliceList::new()));
+ let right_atoms = Rc::new(RefCell::new(SourceAtomSet::new()));
+ let right_slices = Rc::new(RefCell::new(SourceSliceList::new()));
+ let mut left_lexer = Lexer::new(
+ allocator,
+ left.chars(),
+ left_atoms.clone(),
+ left_slices.clone(),
+ );
+ let mut right_lexer = Lexer::new(
+ allocator,
+ right.chars(),
+ right_atoms.clone(),
+ right_slices.clone(),
+ );
+
+ let mut left_parser = Parser::new(
+ AstBuilder::new(allocator, left_atoms, left_slices),
+ generated_parser::START_STATE_MODULE,
+ );
+ let mut right_parser = Parser::new(
+ AstBuilder::new(allocator, right_atoms, right_slices),
+ generated_parser::START_STATE_MODULE,
+ );
+
+ loop {
+ let left_token = left_lexer
+ .next(&left_parser)
+ .expect("error parsing left string");
+ let right_token = right_lexer
+ .next(&right_parser)
+ .expect("error parsing right string");
+ assert_eq!(
+ left_token.terminal_id, right_token.terminal_id,
+ "at offset {} in {:?} / {} in {:?}",
+ left_token.loc.start, left, right_token.loc.start, right,
+ );
+ assert_eq!(
+ left_token.value, right_token.value,
+ "at offsets {} / {}",
+ left_token.loc.start, right_token.loc.start
+ );
+
+ if left_token.terminal_id == TerminalId::End {
+ break;
+ }
+ left_parser.write_token(left_token).unwrap();
+ right_parser.write_token(right_token).unwrap();
+ }
+ left_parser.close(left_lexer.offset()).unwrap();
+ right_parser.close(left_lexer.offset()).unwrap();
+}
+
+fn assert_can_close_after<'alloc, T: IntoChunks<'alloc>>(code: T) {
+ let allocator = &Bump::new();
+ let buf = chunks_to_string(code);
+ let atoms = Rc::new(RefCell::new(SourceAtomSet::new()));
+ let slices = Rc::new(RefCell::new(SourceSliceList::new()));
+ let mut lexer = Lexer::new(allocator, buf.chars(), atoms.clone(), slices.clone());
+ let mut parser = Parser::new(
+ AstBuilder::new(allocator, atoms, slices),
+ generated_parser::START_STATE_SCRIPT,
+ );
+ loop {
+ let t = lexer.next(&parser).expect("lexer error");
+ if t.terminal_id == TerminalId::End {
+ break;
+ }
+ parser.write_token(t).unwrap();
+ }
+ assert!(parser.can_close());
+}
+
+fn assert_same_number(code: &str, expected: f64) {
+ let allocator = &Bump::new();
+ let script = try_parse(allocator, code).unwrap().unbox();
+ match &script.statements[0] {
+ Statement::ExpressionStatement(expression) => match &**expression {
+ Expression::LiteralNumericExpression(num) => {
+ assert_eq!(num.value, expected, "{}", code);
+ }
+ _ => panic!("expected LiteralNumericExpression"),
+ },
+ _ => panic!("expected ExpressionStatement"),
+ }
+}
+
+#[test]
+fn test_asi_at_end() {
+ assert_parses("3 + 4");
+ assert_syntax_error("3 4");
+ assert_incomplete("3 +");
+ assert_incomplete("{");
+ assert_incomplete("{;");
+}
+
+#[test]
+fn test_asi_at_block_end() {
+ assert_parses("{ doCrimes() }");
+ assert_parses("function f() { ok }");
+}
+
+#[test]
+fn test_asi_after_line_terminator() {
+ assert_parses(
+ "switch (value) {
+ case 1: break
+ case 2: console.log('2');
+ }",
+ );
+ assert_syntax_error("switch (value) { case 1: break case 2: console.log('2'); }");
+
+ // "[T]he presence or absence of single-line comments does not affect the
+ // process of automatic semicolon insertion[...]."
+ // <https://tc39.es/ecma262/#sec-comments>
+ assert_parses("x = 1 // line break here\ny = 2");
+ assert_parses("x = 1 // line break here\r\ny = 2");
+ assert_parses("x = 1 /* no line break in here */ //\ny = 2");
+ assert_parses("x = 1<!-- line break here\ny = 2");
+
+ assert_syntax_error("x = 1 /* no line break in here */ y = 2");
+ assert_parses("x = 1 /* line break \n there */y = 2");
+}
+
+#[test]
+fn test_asi_suppressed() {
+ // The specification says ASI does not happen in the production
+ // EmptyStatement : `;`.
+ // TODO - assert_syntax_error("if (true)");
+ assert_syntax_error("{ for (;;) }");
+
+ // ASI does not happen in for(;;) loops.
+ assert_syntax_error("for ( \n ; ) {}");
+ assert_syntax_error("for ( ; \n ) {}");
+ assert_syntax_error("for ( \n \n ) {}");
+ assert_syntax_error("for (var i = 0 \n i < 9; i++) {}");
+ assert_syntax_error("for (var i = 0; i < 9 \n i++) {}");
+ assert_syntax_error("for (i = 0 \n i < 9; i++) {}");
+ assert_syntax_error("for (i = 0; i < 9 \n i++) {}");
+ assert_syntax_error("for (const i = 0 \n i < 9; i++) {}");
+
+ // ASI is suppressed in the production ClassElement[Yield, Await] : `;`
+ // to prevent an infinite loop of ASI. lol
+ assert_syntax_error("class Fail { \n +1; }");
+}
+
+#[test]
+fn test_if_else() {
+ assert_parses("if (x) f();");
+ assert_incomplete("if (x)");
+ assert_parses("if (x) f(); else g();");
+ assert_incomplete("if (x) f(); else");
+ assert_parses("if (x) if (y) g(); else h();");
+ assert_parses("if (x) if (y) g(); else h(); else j();");
+}
+
+#[test]
+fn test_lexer_decimal() {
+ assert_parses("0.");
+ assert_parses(".5");
+ assert_syntax_error(".");
+}
+
+#[test]
+fn test_numbers() {
+ assert_same_number("0", 0.0);
+ assert_same_number("1", 1.0);
+ assert_same_number("10", 10.0);
+
+ assert_error_eq("0a", ParseError::IllegalCharacter('a'));
+ assert_error_eq("1a", ParseError::IllegalCharacter('a'));
+
+ assert_error_eq("1.0a", ParseError::IllegalCharacter('a'));
+ assert_error_eq(".0a", ParseError::IllegalCharacter('a'));
+ assert_error_eq("1.a", ParseError::IllegalCharacter('a'));
+
+ assert_same_number("1.0", 1.0);
+ assert_same_number("1.", 1.0);
+ assert_same_number("0.", 0.0);
+
+ assert_same_number("1.0e0", 1.0);
+ assert_same_number("1.e0", 1.0);
+ assert_same_number(".0e0", 0.0);
+
+ assert_same_number("1.0e+0", 1.0);
+ assert_same_number("1.e+0", 1.0);
+ assert_same_number(".0e+0", 0.0);
+
+ assert_same_number("1.0e-0", 1.0);
+ assert_same_number("1.e-0", 1.0);
+ assert_same_number(".0e-0", 0.0);
+
+ assert_error_eq("1.0e", ParseError::UnexpectedEnd);
+ assert_error_eq("1.e", ParseError::UnexpectedEnd);
+ assert_error_eq(".0e", ParseError::UnexpectedEnd);
+
+ assert_error_eq("1.0e+", ParseError::UnexpectedEnd);
+ assert_error_eq("1.0e-", ParseError::UnexpectedEnd);
+ assert_error_eq(".0e+", ParseError::UnexpectedEnd);
+ assert_error_eq(".0e-", ParseError::UnexpectedEnd);
+
+ assert_same_number("1.0E0", 1.0);
+ assert_same_number("1.E0", 1.0);
+ assert_same_number(".0E0", 0.0);
+
+ assert_same_number("1.0E+0", 1.0);
+ assert_same_number("1.E+0", 1.0);
+ assert_same_number(".0E+0", 0.0);
+
+ assert_same_number("1.0E-0", 1.0);
+ assert_same_number("1.E-0", 1.0);
+ assert_same_number(".0E-0", 0.0);
+
+ assert_error_eq("1.0E", ParseError::UnexpectedEnd);
+ assert_error_eq("1.E", ParseError::UnexpectedEnd);
+ assert_error_eq(".0E", ParseError::UnexpectedEnd);
+
+ assert_error_eq("1.0E+", ParseError::UnexpectedEnd);
+ assert_error_eq("1.0E-", ParseError::UnexpectedEnd);
+ assert_error_eq(".0E+", ParseError::UnexpectedEnd);
+ assert_error_eq(".0E-", ParseError::UnexpectedEnd);
+
+ assert_same_number(".0", 0.0);
+ assert_parses("");
+
+ assert_same_number("0b0", 0.0);
+
+ assert_same_number("0b1", 1.0);
+ assert_same_number("0B01", 1.0);
+ assert_error_eq("0b", ParseError::UnexpectedEnd);
+ assert_error_eq("0b ", ParseError::IllegalCharacter(' '));
+ assert_error_eq("0b2", ParseError::IllegalCharacter('2'));
+
+ assert_same_number("0o0", 0.0);
+ assert_same_number("0o7", 7.0);
+ assert_same_number("0O01234567", 0o01234567 as f64);
+ assert_error_eq("0o", ParseError::UnexpectedEnd);
+ assert_error_eq("0o ", ParseError::IllegalCharacter(' '));
+ assert_error_eq("0o8", ParseError::IllegalCharacter('8'));
+
+ assert_same_number("0x0", 0.0);
+ assert_same_number("0xf", 15.0);
+ assert_not_implemented("0X0123456789abcdef");
+ assert_not_implemented("0X0123456789ABCDEF");
+ assert_error_eq("0x", ParseError::UnexpectedEnd);
+ assert_error_eq("0x ", ParseError::IllegalCharacter(' '));
+ assert_error_eq("0xg", ParseError::IllegalCharacter('g'));
+
+ assert_parses("1..x");
+
+ assert_same_number("1_1", 11.0);
+ assert_same_number("0b1_1", 3.0);
+ assert_same_number("0o1_1", 9.0);
+ assert_same_number("0x1_1", 17.0);
+
+ assert_same_number("1_1.1_1", 11.11);
+ assert_same_number("1_1.1_1e+1_1", 11.11e11);
+
+ assert_error_eq("1_", ParseError::UnexpectedEnd);
+ assert_error_eq("1._1", ParseError::IllegalCharacter('_'));
+ assert_error_eq("1.1_", ParseError::UnexpectedEnd);
+ assert_error_eq("1.1e1_", ParseError::UnexpectedEnd);
+ assert_error_eq("1.1e_1", ParseError::IllegalCharacter('_'));
+}
+
+#[test]
+fn test_numbers_large() {
+ assert_same_number("4294967295", 4294967295.0);
+ assert_same_number("4294967296", 4294967296.0);
+ assert_same_number("4294967297", 4294967297.0);
+
+ assert_same_number("9007199254740991", 9007199254740991.0);
+ assert_same_number("9007199254740992", 9007199254740992.0);
+ assert_same_number("9007199254740993", 9007199254740992.0);
+
+ assert_same_number("18446744073709553664", 18446744073709552000.0);
+ assert_same_number("18446744073709553665", 18446744073709556000.0);
+
+ assert_same_number("0b11111111111111111111111111111111", 4294967295.0);
+ assert_same_number("0b100000000000000000000000000000000", 4294967296.0);
+ assert_same_number("0b100000000000000000000000000000001", 4294967297.0);
+
+ assert_same_number(
+ "0b11111111111111111111111111111111111111111111111111111",
+ 9007199254740991.0,
+ );
+ assert_not_implemented("0b100000000000000000000000000000000000000000000000000000");
+
+ assert_same_number("0o77777777777777777", 2251799813685247.0);
+ assert_not_implemented("0o100000000000000000");
+
+ assert_same_number("0xfffffffffffff", 4503599627370495.0);
+ assert_not_implemented("0x10000000000000");
+
+ assert_same_number("4.9406564584124654417656879286822e-324", 5e-324);
+}
+
+#[test]
+fn test_bigint() {
+ assert_not_implemented("0n");
+ /*
+ assert_parses("0n");
+ assert_parses("1n");
+ assert_parses("10n");
+
+ assert_error_eq("0na", ParseError::IllegalCharacter('a'));
+ assert_error_eq("1na", ParseError::IllegalCharacter('a'));
+
+ assert_error_eq("1.0n", ParseError::IllegalCharacter('n'));
+ assert_error_eq(".0n", ParseError::IllegalCharacter('n'));
+ assert_error_eq("1.n", ParseError::IllegalCharacter('n'));
+
+ assert_error_eq("1e0n", ParseError::IllegalCharacter('n'));
+ assert_error_eq("1e+0n", ParseError::IllegalCharacter('n'));
+ assert_error_eq("1e-0n", ParseError::IllegalCharacter('n'));
+ assert_error_eq("1E0n", ParseError::IllegalCharacter('n'));
+ assert_error_eq("1E+0n", ParseError::IllegalCharacter('n'));
+ assert_error_eq("1E-0n", ParseError::IllegalCharacter('n'));
+
+ assert_parses("0b0n");
+
+ assert_parses("0b1n");
+ assert_parses("0B01n");
+ assert_error_eq("0bn", ParseError::IllegalCharacter('n'));
+
+ assert_parses("0o0n");
+ assert_parses("0o7n");
+ assert_parses("0O01234567n");
+ assert_error_eq("0on", ParseError::IllegalCharacter('n'));
+
+ assert_parses("0x0n");
+ assert_parses("0xfn");
+ assert_parses("0X0123456789abcdefn");
+ assert_parses("0X0123456789ABCDEFn");
+ assert_error_eq("0xn", ParseError::IllegalCharacter('n'));
+
+ assert_parses("1_1n");
+ assert_parses("0b1_1n");
+ assert_parses("0o1_1n");
+ assert_parses("0x1_1n");
+
+ assert_error_eq("1_1.1_1n", ParseError::IllegalCharacter('n'));
+ assert_error_eq("1_1.1_1e1_1n", ParseError::IllegalCharacter('n'));
+
+ assert_error_eq("1_n", ParseError::IllegalCharacter('n'));
+ assert_error_eq("1.1_n", ParseError::IllegalCharacter('n'));
+ assert_error_eq("1.1e1_n", ParseError::IllegalCharacter('n'));
+ */
+}
+
+#[test]
+fn test_arrow() {
+ assert_parses("x => x");
+ assert_parses("f = x => x;");
+ assert_parses("(x, y) => [y, x]");
+ assert_parses("f = (x, y) => {}");
+ assert_syntax_error("(x, y) => {x: x, y: y}");
+}
+
+#[test]
+fn test_illegal_character() {
+ assert_illegal_character("\0");
+ assert_illegal_character("—x;");
+ assert_illegal_character("const ONE_THIRD = 1 ÷ 3;");
+}
+
+#[test]
+fn test_identifier() {
+ // U+00B7 MIDDLE DOT is an IdentifierPart.
+ assert_parses("_·_ = {_·_:'·_·'};");
+
+ // <ZWJ> and <ZWNJ> match IdentifierPart but not IdentifierStart.
+ assert_parses("var x\u{200c};"); // <ZWNJ>
+ assert_parses("_\u{200d}();"); // <ZWJ>
+ assert_parses("_\u{200d}__();"); // <ZWJ>
+ assert_parses("_\u{200d}\u{200c}();"); // <ZWJ>
+ assert_illegal_character("var \u{200c};"); // <ZWNJ>
+ assert_illegal_character("x = \u{200d};"); // <ZWJ>
+
+ // Other_ID_Start for backward compat.
+ assert_parses("\u{309B}();");
+ assert_parses("\u{309C}();");
+ assert_parses("_\u{309B}();");
+ assert_parses("_\u{309C}();");
+
+ // Non-BMP.
+ assert_parses("\u{10000}();");
+ assert_parses("_\u{10000}();");
+ assert_illegal_character("\u{1000c}();");
+ assert_illegal_character("_\u{1000c}();");
+}
+
+#[test]
+fn test_regexp() {
+ assert_parses(r"/\w/");
+ assert_parses("/[A-Z]/");
+ assert_parses("/[//]/");
+ assert_parses("/a*a/");
+ assert_parses("/**//x*/");
+ assert_same_tokens("/**//x*/", "/x*/");
+ assert_parses("{} /x/");
+ assert_parses("of / 2");
+}
+
+#[test]
+fn test_html_comments() {
+ assert_same_tokens("x<!--y;", "x");
+ assert_same_tokens("x<!-y;", "x < ! - y ;");
+ assert_same_tokens("x<!y", "x < ! y");
+
+ assert_same_tokens("--> hello world\nok", "ok");
+ assert_same_tokens("/* ignore */ --> also ignore\nok", "ok");
+ assert_same_tokens("/* ignore *//**/--> also ignore\nok", "ok");
+ assert_same_tokens("x-->y\nz", "x -- > y\nz");
+}
+
+#[test]
+fn test_incomplete_comments() {
+ assert_error("/*");
+ assert_error("/* hello world");
+ assert_error("/* hello world *");
+
+ assert_parses(&vec!["/* hello\n", " world */"]);
+ assert_parses(&vec!["// oawfeoiawj", "ioawefoawjie"]);
+ assert_parses(&vec!["// oawfeoiawj", "ioawefoawjie\n ok();"]);
+ assert_parses(&vec!["// oawfeoiawj", "ioawefoawjie", "jiowaeawojefiw"]);
+ assert_parses(&vec![
+ "// oawfeoiawj",
+ "ioawefoawjie",
+ "jiowaeawojefiw\n ok();",
+ ]);
+}
+
+#[test]
+fn test_strings() {
+ assert_parses("f(\"\",\"\")");
+ assert_parses("f(\"\")");
+ assert_parses("(\"\")");
+ assert_parses("f('','')");
+ assert_parses("f('')");
+ assert_parses("('')");
+}
+
+#[test]
+fn test_awkward_chunks() {
+ assert_parses(&vec!["const", "ructor.length = 1;"]);
+ assert_parses(&vec!["const", " x = 1;"]);
+
+ // Try feeding one character at a time to the parser.
+ let chars: Vec<&str> = "function f() { ok(); }".split("").collect();
+ assert_parses(&chars);
+
+ // XXX TODO
+ //assertEqual(
+ // self.parse(&vec!["/xyzzy/", "g;"]),
+ // ('Script',
+ // ('ScriptBody',
+ // ('StatementList 0',
+ // ('ExpressionStatement',
+ // ('PrimaryExpression 10', '/xyzzy/g'))))));
+
+ let allocator = &Bump::new();
+ let actual = try_parse(allocator, &vec!["x/", "=2;"]).unwrap();
+ let atoms = Rc::new(RefCell::new(SourceAtomSet::new()));
+ let expected = Script {
+ directives: arena::Vec::new_in(allocator),
+ statements: bumpalo::vec![
+ in allocator;
+ Statement::ExpressionStatement(arena::alloc(
+ allocator,
+ Expression::CompoundAssignmentExpression {
+ operator: CompoundAssignmentOperator::Div {
+ loc: SourceLocation::new(1, 3),
+ },
+ binding: SimpleAssignmentTarget::AssignmentTargetIdentifier(
+ AssignmentTargetIdentifier {
+ name: Identifier {
+ value: atoms.borrow_mut().insert("x"),
+ loc: SourceLocation::new(0, 1),
+ },
+ loc: SourceLocation::new(0, 1),
+ },
+ ),
+ expression: arena::alloc(
+ allocator,
+ Expression::LiteralNumericExpression(NumericLiteral {
+ value: 2.0,
+ loc: SourceLocation::new(3, 4),
+ }),
+ ),
+ loc: SourceLocation::new(0, 4),
+ },
+ ))
+ ],
+ loc: SourceLocation::new(0, 4),
+ };
+ assert_eq!(format!("{:?}", actual), format!("{:?}", expected));
+}
+
+#[test]
+fn test_can_close() {
+ let empty: Vec<&str> = vec![];
+ assert_can_close_after(&empty);
+ assert_can_close_after("");
+ assert_can_close_after("2 + 2;\n");
+ assert_can_close_after("// seems ok\n");
+}
+
+#[test]
+fn test_regex() {
+ assert_parses("/x/");
+ assert_parses("x = /x/");
+ assert_parses("x = /x/g");
+
+ // FIXME: Unexpected flag
+ // assert_parses("x = /x/wow_flags_can_be_$$anything$$");
+ assert_not_implemented("x = /x/wow_flags_can_be_$$anything$$");
+
+ // TODO: Should the lexer running out of input throw an incomplete error, or a lexer error?
+ assert_error_eq("/x", ParseError::UnterminatedRegExp);
+ assert_incomplete("x = //"); // comment
+ assert_error_eq("x = /*/", ParseError::UnterminatedMultiLineComment); /*/ comment */
+ assert_error_eq("x =/= 2", ParseError::UnterminatedRegExp);
+ assert_parses("x /= 2");
+ assert_parses("x = /[]/");
+ assert_parses("x = /[^x]/");
+ assert_parses("x = /+=351*/");
+ assert_parses("x = /^\\s*function (\\w+)/;");
+ assert_parses("const regexp = /this is fine: [/] dont @ me/;");
+}
+
+#[test]
+fn test_arrow_parameters() {
+ assert_error_eq(
+ "({a:a, ...b, c:c}) => {}",
+ ParseError::ObjectPatternWithNonFinalRest,
+ );
+ assert_error_eq(
+ "(a, [...zero, one]) => {}",
+ ParseError::ArrayPatternWithNonFinalRest,
+ );
+ assert_error_eq(
+ "(a, {items: [...zero, one]}) => {}",
+ ParseError::ArrayPatternWithNonFinalRest,
+ );
+}
+
+#[test]
+fn test_invalid_assignment_targets() {
+ assert_syntax_error("2 + 2 = x;");
+ assert_error_eq("(2 + 2) = x;", ParseError::InvalidAssignmentTarget);
+ assert_error_eq("++-x;", ParseError::InvalidAssignmentTarget);
+ assert_error_eq("(x && y)--;", ParseError::InvalidAssignmentTarget);
+}
+
+#[test]
+fn test_can_close_with_asi() {
+ assert_can_close_after("2 + 2\n");
+}
+
+#[test]
+fn test_conditional_keywords() {
+ // property names
+ assert_parses("const obj = {if: 3, function: 4};");
+ assert_parses("const obj = {true: 1, false: 0, null: NaN};");
+ assert_parses("assert(obj.if == 3);");
+ assert_parses("assert(obj.true + obj.false + obj.null == NaN);");
+
+ // method names
+ assert_parses(
+ "
+ class C {
+ if() {}
+ function() {}
+ }
+ ",
+ );
+
+ // FIXME: let (multitoken lookahead):
+ assert_not_implemented("let a = 1;");
+ /*
+ // let as identifier
+ assert_parses("var let = [new Date];");
+ // let as keyword, then identifier
+ assert_parses("let v = let;");
+ // `let .` -> ExpressionStatement
+ assert_parses("let.length;");
+ // `let [` -> LexicalDeclaration
+ assert_syntax_error("let[0].getYear();");
+ */
+
+ assert_parses(
+ "
+ var of = [1, 2, 3];
+ for (of of of) console.log(of); // logs 1, 2, 3
+ ",
+ );
+
+ // Not implemented:
+ // assert_parses("var of, let, private, target;");
+
+ assert_parses("class X { get y() {} }");
+
+ // Not implemented:
+ // assert_parses("async: { break async; }");
+
+ assert_parses("var get = { get get() {}, set get(v) {}, set: 3 };");
+
+ // Not implemented (requires hack; grammar is not LR(1)):
+ // assert_parses("for (async of => {};;) {}");
+ // assert_parses("for (async of []) {}");
+}
+
+#[test]
+fn test_async_arrows() {
+ // FIXME: async (multiple lookahead)
+ assert_not_implemented("const a = async a => 1;");
+ /*
+ assert_parses("let f = async arg => body;");
+ assert_parses("f = async (a1, a2) => {};");
+ assert_parses("f = async (a1 = b + c, ...a2) => {};");
+
+ assert_error_eq("f = async (a, b + c) => {};", ParseError::InvalidParameter);
+ assert_error_eq(
+ "f = async (...a1, a2) => {};",
+ ParseError::ArrowParametersWithNonFinalRest,
+ );
+ assert_error_eq("obj.async() => {}", ParseError::ArrowHeadInvalid);
+ */
+
+ assert_error_eq("foo(a, b) => {}", ParseError::ArrowHeadInvalid);
+}
+
+#[test]
+fn test_binary() {
+ assert_parses("1 == 2");
+ assert_parses("1 != 2");
+ assert_parses("1 === 2");
+ assert_parses("1 !== 2");
+ assert_parses("1 < 2");
+ assert_parses("1 <= 2");
+ assert_parses("1 > 2");
+ assert_parses("1 >= 2");
+ assert_parses("1 in 2");
+ assert_parses("1 instanceof 2");
+ assert_parses("1 << 2");
+ assert_parses("1 >> 2");
+ assert_parses("1 >>> 2");
+ assert_parses("1 + 2");
+ assert_parses("1 - 2");
+ assert_parses("1 * 2");
+ assert_parses("1 / 2");
+ assert_parses("1 % 2");
+ assert_parses("1 ** 2");
+ assert_parses("1 , 2");
+ assert_parses("1 || 2");
+ assert_parses("1 && 2");
+ assert_parses("1 | 2");
+ assert_parses("1 ^ 2");
+ assert_parses("1 & 2");
+}
+
+#[test]
+fn test_coalesce() {
+ assert_parses("const f = options.prop ?? 0;");
+ assert_syntax_error("if (options.prop ?? 0 || options.prop > 1000) {}");
+}
+
+#[test]
+fn test_no_line_terminator_here() {
+ // Parse `code` as a Script and compute some function of the resulting AST.
+ fn parse_then<F, R>(code: &str, f: F) -> R
+ where
+ F: FnOnce(&Script) -> R,
+ {
+ let allocator = &Bump::new();
+ match try_parse(allocator, code) {
+ Err(err) => {
+ panic!("Failed to parse code {:?}: {}", code, err);
+ }
+ Ok(script) => f(&*script),
+ }
+ }
+
+ // Parse `code` as a Script and return the number of top-level
+ // StatementListItems.
+ fn count_items(code: &str) -> usize {
+ parse_then(code, |script| script.statements.len())
+ }
+
+ // Without a newline, labelled `break` in loop. But a line break changes
+ // the meaning -- then it's a plain `break` statement, followed by
+ // ExpressionStatement `LOOP;`
+ assert_eq!(count_items("LOOP: while (true) break LOOP;"), 1);
+ assert_eq!(count_items("LOOP: while (true) break \n LOOP;"), 2);
+
+ // The same, but for `continue`.
+ assert_eq!(count_items("LOOP: while (true) continue LOOP;"), 1);
+ assert_eq!(count_items("LOOP: while (true) continue \n LOOP;"), 2);
+
+ // Parse `code` as a Script, expected to contain a single function
+ // declaration, and return the number of statements in the function body.
+ fn count_statements_in_function(code: &str) -> usize {
+ parse_then(code, |script| {
+ assert_eq!(
+ script.statements.len(),
+ 1,
+ "expected function declaration, got {:?}",
+ script
+ );
+ match &script.statements[0] {
+ Statement::FunctionDeclaration(func) => func.body.statements.len(),
+ _ => panic!("expected function declaration, got {:?}", script),
+ }
+ })
+ }
+
+ assert_eq!(
+ count_statements_in_function("function f() { return x; }"),
+ 1
+ );
+ assert_eq!(
+ count_statements_in_function("function f() { return\n x; }"),
+ 2
+ );
+
+ assert_parses("x++");
+ assert_incomplete("x\n++");
+
+ assert_parses("throw fit;");
+ assert_syntax_error("throw\nfit;");
+
+ // Alternative ways of spelling LineTerminator
+ assert_syntax_error("throw//\nfit;");
+ assert_syntax_error("throw/*\n*/fit;");
+ assert_syntax_error("throw\rfit;");
+ assert_syntax_error("throw\r\nfit;");
+}
diff --git a/third_party/rust/jsparagus-parser/src/unicode.rs b/third_party/rust/jsparagus-parser/src/unicode.rs
new file mode 100644
index 0000000000..16bfc1fe85
--- /dev/null
+++ b/third_party/rust/jsparagus-parser/src/unicode.rs
@@ -0,0 +1,41 @@
+use crate::unicode_data::{
+ char_info, is_id_continue_non_bmp, is_id_start_non_bmp, IS_ID_CONTINUE_TABLE, IS_ID_START_TABLE,
+};
+
+const UTF16_MAX: char = '\u{ffff}';
+
+fn is_id_start_ascii(c: char) -> bool {
+ IS_ID_START_TABLE[c as usize]
+}
+
+fn is_id_continue_ascii(c: char) -> bool {
+ IS_ID_CONTINUE_TABLE[c as usize]
+}
+
+fn is_id_start_bmp_non_ascii(c: char) -> bool {
+ char_info(c).is_id_start()
+}
+
+fn is_id_continue_bmp_non_ascii(c: char) -> bool {
+ char_info(c).is_id_continue()
+}
+
+pub fn is_id_start(c: char) -> bool {
+ if c > UTF16_MAX {
+ return is_id_start_non_bmp(c);
+ }
+ if c < '\u{80}' {
+ return is_id_start_ascii(c);
+ }
+ is_id_start_bmp_non_ascii(c)
+}
+
+pub fn is_id_continue(c: char) -> bool {
+ if c > UTF16_MAX {
+ return is_id_continue_non_bmp(c);
+ }
+ if c < '\u{80}' {
+ return is_id_continue_ascii(c);
+ }
+ is_id_continue_bmp_non_ascii(c)
+}
diff --git a/third_party/rust/jsparagus-parser/src/unicode_data.rs b/third_party/rust/jsparagus-parser/src/unicode_data.rs
new file mode 100644
index 0000000000..7b2acb773b
--- /dev/null
+++ b/third_party/rust/jsparagus-parser/src/unicode_data.rs
@@ -0,0 +1,2117 @@
+// Generated by update_unicode.py DO NOT MODIFY
+// Unicode version: 14.0.0
+
+const FLAG_ID_START: u8 = 1;
+const FLAG_ID_CONTINUE: u8 = 2;
+
+pub struct CharInfo {
+ flags: u8,
+}
+
+impl CharInfo {
+ pub fn is_id_start(&self) -> bool {
+ self.flags & FLAG_ID_START != 0
+ }
+
+ pub fn is_id_continue(&self) -> bool {
+ self.flags & FLAG_ID_CONTINUE != 0
+ }
+}
+
+pub const CHAR_INFO_TABLE: &'static [CharInfo] = &[
+ CharInfo { flags: 0 },
+ CharInfo { flags: 2 },
+ CharInfo { flags: 3 },
+];
+
+pub const INDEX1: &'static [u8] = &[
+ 0, 0, 0, 1, 2, 3, 2, 4, 0, 0, 5, 6, 7, 8, 7, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 9, 10, 11, 0, 12, 12, 12, 12, 12, 12, 12, 13, 14, 7, 15, 7,
+ 7, 7, 7, 16, 7, 7, 7, 7, 7, 7, 7, 7, 17, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 7, 18, 7, 7, 19, 20,
+ 12, 21, 22, 7, 23, 24, 0, 25, 7, 7, 26, 12, 27, 28, 7, 7, 7, 7, 7, 29, 30, 31, 0, 32, 7, 12,
+ 33, 7, 7, 7, 7, 7, 34, 35, 36, 7, 26, 37, 7, 38, 39, 0, 7, 40, 4, 7, 41, 42, 7, 7, 43, 12, 44,
+ 12, 45, 7, 7, 46, 12, 47, 48, 2, 49, 50, 51, 52, 53, 54, 48, 55, 56, 50, 51, 57, 58, 59, 60,
+ 61, 62, 15, 51, 63, 64, 65, 48, 66, 67, 50, 51, 63, 68, 69, 48, 70, 71, 72, 73, 74, 75, 76, 60,
+ 0, 77, 78, 51, 79, 80, 81, 48, 0, 82, 78, 51, 83, 80, 84, 48, 85, 86, 78, 7, 87, 88, 89, 48,
+ 90, 91, 92, 7, 93, 94, 95, 60, 96, 2, 7, 7, 97, 98, 1, 0, 0, 99, 7, 100, 101, 102, 103, 0, 0,
+ 65, 104, 1, 105, 106, 7, 107, 20, 108, 109, 12, 110, 111, 0, 0, 0, 7, 7, 26, 112, 1, 113, 114,
+ 115, 116, 117, 7, 7, 118, 7, 7, 119, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 120, 121, 7, 7, 120, 7, 7, 122, 123, 8, 7, 7, 7, 123, 7, 7, 7, 124, 125, 126, 7, 0, 7, 7, 7,
+ 7, 7, 127, 2, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 128, 7, 2, 4, 7, 7, 7, 7, 129, 19, 7, 130, 7, 131, 7, 132, 133,
+ 134, 7, 7, 7, 135, 12, 136, 1, 0, 137, 1, 7, 7, 7, 7, 7, 19, 7, 7, 138, 7, 7, 7, 7, 139, 7,
+ 140, 141, 141, 60, 7, 142, 143, 7, 7, 144, 7, 145, 25, 0, 0, 7, 146, 7, 7, 7, 147, 12, 148, 1,
+ 1, 149, 21, 150, 0, 0, 0, 151, 7, 7, 135, 152, 1, 153, 154, 155, 7, 156, 36, 7, 7, 34, 154, 7,
+ 7, 135, 157, 158, 36, 7, 142, 19, 7, 7, 159, 0, 160, 161, 162, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 12, 12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 127, 7, 7, 127, 163, 7,
+ 142, 7, 7, 7, 164, 165, 166, 107, 165, 0, 0, 0, 167, 168, 169, 0, 170, 0, 107, 0, 0, 0, 110,
+ 171, 168, 172, 173, 174, 175, 176, 0, 7, 7, 19, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 177, 178, 7, 7, 118, 7, 7, 7, 179, 167, 7, 180, 181, 181, 181, 181, 12, 12, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 182, 0, 183, 184, 2, 7, 7, 7, 7, 185, 2, 7, 7, 7, 7, 119, 186, 7, 7, 2, 7, 7, 7, 7, 140, 0, 7,
+ 7, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 0, 0, 0, 0, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 107, 0, 0, 0, 0, 7, 7, 142, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 107, 7, 187, 0, 7, 7, 188, 189, 7, 190, 7, 7, 7, 7, 7, 126, 0, 191, 192,
+ 7, 7, 7, 7, 7, 193, 7, 7, 7, 4, 194, 0, 192, 195, 7, 196, 0, 7, 7, 7, 197, 198, 7, 7, 135, 199,
+ 1, 12, 200, 36, 7, 201, 7, 202, 154, 7, 107, 45, 7, 7, 203, 204, 1, 205, 206, 7, 7, 207, 208,
+ 209, 1, 7, 210, 7, 7, 7, 211, 212, 213, 26, 214, 215, 216, 181, 7, 7, 119, 145, 7, 7, 7, 7, 7,
+ 7, 7, 217, 1, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 197, 7, 218, 7, 7, 144, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 142, 7, 7, 7, 7, 7, 7, 145, 0, 0, 180, 219, 51, 220,
+ 221, 7, 7, 7, 7, 7, 7, 10, 0, 222, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 142, 0, 7, 7, 7, 7, 192, 7, 7, 223, 0, 0, 144, 12, 0, 12, 224, 225, 0, 0, 226, 7, 7, 7, 7,
+ 7, 7, 7, 107, 0, 1, 2, 3, 2, 4, 227, 7, 7, 7, 7, 140, 228, 229, 0, 0,
+];
+
+pub const INDEX2: &'static [u8] = &[
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
+ 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 1,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 2, 0, 1, 0, 0, 2, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 0, 2, 2, 0, 0, 2, 2, 2, 2, 0, 2,
+ 0, 0, 0, 0, 0, 0, 2, 1, 2, 2, 2, 0, 2, 0, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 1, 1, 1, 1, 1, 0, 0, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 0, 0, 2, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0,
+ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1,
+ 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 2,
+ 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 2, 2,
+ 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1,
+ 1, 1, 1, 1, 1, 2, 2, 1, 1, 0, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 0, 0, 2,
+ 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 2, 2, 0, 0, 0, 0, 2, 0, 0, 1, 0, 0,
+ 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 0, 0,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1,
+ 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 0, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 2,
+ 2, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2,
+ 2, 0, 2, 0, 0, 0, 2, 2, 2, 2, 0, 0, 1, 2, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 2, 0,
+ 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 2, 2, 0, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 1, 0,
+ 0, 1, 1, 1, 0, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 0, 1, 0, 1, 1,
+ 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 0, 2, 0,
+ 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 1, 1, 1, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 2, 2, 2, 0, 0, 1, 2, 1, 1,
+ 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 2,
+ 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 2, 2, 0, 2,
+ 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 0, 2, 2, 2, 2, 2, 2, 0, 0, 0, 2, 2,
+ 2, 0, 2, 2, 2, 2, 0, 0, 0, 2, 2, 0, 2, 0, 2, 2, 0, 0, 0, 2, 2, 0, 0, 0, 2, 2, 2, 0, 0, 0, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0,
+ 2, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2,
+ 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 1, 2, 1, 1,
+ 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 2, 2, 2, 0, 0, 2, 0, 0,
+ 2, 1, 1, 1, 0, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 0, 0, 1, 2, 1, 1,
+ 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 2, 1, 1,
+ 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 2, 0, 0, 0, 0, 0, 2, 2, 2, 1, 0, 0, 0, 0, 0, 0, 0, 2,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 0, 1, 1, 1, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 0, 0,
+ 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1,
+ 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,
+ 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 2, 2, 0, 2, 0, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2,
+ 2, 2, 2, 2, 0, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 0, 0,
+ 2, 2, 2, 2, 2, 0, 2, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 2, 2, 2, 2,
+ 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1,
+ 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0,
+ 1, 1, 1, 1, 1, 0, 1, 1, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, 1, 1,
+ 1, 2, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0,
+ 2, 2, 2, 2, 2, 2, 0, 2, 0, 0, 0, 0, 0, 2, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 0, 0, 2, 2, 2, 2, 2, 2, 2, 0, 2, 0, 2, 2, 2, 2, 0, 0,
+ 2, 0, 2, 2, 2, 2, 0, 0, 2, 2, 2, 2, 2, 2, 2, 0, 2, 0, 2, 2, 2, 2, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 0, 0, 2, 2, 2, 2, 2, 2, 0, 0,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 2, 2,
+ 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 2, 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2,
+ 2, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 0, 0, 0, 2, 0, 0, 0, 0, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0,
+ 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 0, 0, 0, 0, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 2, 2, 2,
+ 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 1, 2, 2,
+ 2, 2, 2, 2, 1, 2, 2, 1, 1, 1, 2, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 0, 2, 0, 2, 0, 2,
+ 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 0, 2, 0, 0, 0, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0,
+ 2, 2, 2, 2, 0, 0, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 0, 0, 2, 0, 0, 0, 0, 2, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 0, 0, 2, 2, 2, 2, 2, 2, 0, 0,
+ 0, 0, 0, 0, 2, 0, 2, 0, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 2, 2, 2, 2,
+ 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 0, 0, 0, 0, 2, 0, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 1,
+ 1, 1, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 2,
+ 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 0,
+ 0, 0, 0, 0, 0, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1,
+ 0, 2, 2, 2, 2, 2, 0, 0, 2, 2, 2, 2, 2, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 0, 0, 1, 1, 2, 2, 2, 2, 2,
+ 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 0, 0, 0, 0,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 2, 2, 2, 2, 2,
+ 2, 2, 0, 2, 0, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2, 2,
+ 2, 2, 2, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 2, 2, 2, 2, 2, 2, 0, 0, 0, 2, 0, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0,
+ 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 0, 0,
+ 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 2, 1, 1, 1, 2, 2, 1, 2, 1, 1, 1, 2, 2, 1, 1, 2, 2, 2, 2, 2, 1, 1,
+ 2, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 0, 0,
+ 0, 0, 2, 2, 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 0, 0, 2, 2, 2, 2, 2, 2, 0,
+ 0, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0,
+ 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 2, 2, 2, 2, 2, 0, 0, 0, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 2, 1, 2,
+ 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 0, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1,
+ 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 0, 0, 2, 2, 2, 2, 2, 2, 0, 0, 2, 2, 2, 2, 2, 2, 0, 0, 2, 2, 2, 2, 2, 2, 0, 0, 2, 2, 2, 0, 0, 0,
+];
+
+const SHIFT: usize = 4;
+
+pub fn char_info(c: char) -> &'static CharInfo {
+ let code = c as usize;
+ let index = INDEX1[code >> SHIFT] as usize;
+ let index = INDEX2[(index << SHIFT) + (code & ((1 << SHIFT) - 1))] as usize;
+
+ &CHAR_INFO_TABLE[index]
+}
+
+pub const IS_ID_START_TABLE: &'static [bool] = &[
+ false, false, false, false, false, false, false, false, false, false, false, false, false,
+ false, false, false, false, false, false, false, false, false, false, false, false, false,
+ false, false, false, false, false, false, false, false, false, false, false, false, false,
+ false, false, false, false, false, false, false, false, false, false, false, false, false,
+ false, false, false, false, false, false, false, false, false, false, false, false, false,
+ true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
+ true, true, true, true, true, true, true, true, true, true, false, false, false, false, false,
+ false, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
+ true, true, true, true, true, true, true, true, true, true, true, true, false, false, false,
+ false, false,
+];
+
+pub const IS_ID_CONTINUE_TABLE: &'static [bool] = &[
+ false, false, false, false, false, false, false, false, false, false, false, false, false,
+ false, false, false, false, false, false, false, false, false, false, false, false, false,
+ false, false, false, false, false, false, false, false, false, false, false, false, false,
+ false, false, false, false, false, false, false, false, false, true, true, true, true, true,
+ true, true, true, true, true, false, false, false, false, false, false, false, true, true,
+ true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
+ true, true, true, true, true, true, true, true, false, false, false, false, true, false, true,
+ true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
+ true, true, true, true, true, true, true, true, true, false, false, false, false, false,
+];
+
+pub fn is_id_start_non_bmp(c: char) -> bool {
+ if c >= '\u{10000}' && c <= '\u{1000B}' {
+ return true;
+ }
+ if c >= '\u{1000D}' && c <= '\u{10026}' {
+ return true;
+ }
+ if c >= '\u{10028}' && c <= '\u{1003A}' {
+ return true;
+ }
+ if c >= '\u{1003C}' && c <= '\u{1003D}' {
+ return true;
+ }
+ if c >= '\u{1003F}' && c <= '\u{1004D}' {
+ return true;
+ }
+ if c >= '\u{10050}' && c <= '\u{1005D}' {
+ return true;
+ }
+ if c >= '\u{10080}' && c <= '\u{100FA}' {
+ return true;
+ }
+ if c >= '\u{10140}' && c <= '\u{10174}' {
+ return true;
+ }
+ if c >= '\u{10280}' && c <= '\u{1029C}' {
+ return true;
+ }
+ if c >= '\u{102A0}' && c <= '\u{102D0}' {
+ return true;
+ }
+ if c >= '\u{10300}' && c <= '\u{1031F}' {
+ return true;
+ }
+ if c >= '\u{1032D}' && c <= '\u{1034A}' {
+ return true;
+ }
+ if c >= '\u{10350}' && c <= '\u{10375}' {
+ return true;
+ }
+ if c >= '\u{10380}' && c <= '\u{1039D}' {
+ return true;
+ }
+ if c >= '\u{103A0}' && c <= '\u{103C3}' {
+ return true;
+ }
+ if c >= '\u{103C8}' && c <= '\u{103CF}' {
+ return true;
+ }
+ if c >= '\u{103D1}' && c <= '\u{103D5}' {
+ return true;
+ }
+ if c >= '\u{10400}' && c <= '\u{1049D}' {
+ return true;
+ }
+ if c >= '\u{104B0}' && c <= '\u{104D3}' {
+ return true;
+ }
+ if c >= '\u{104D8}' && c <= '\u{104FB}' {
+ return true;
+ }
+ if c >= '\u{10500}' && c <= '\u{10527}' {
+ return true;
+ }
+ if c >= '\u{10530}' && c <= '\u{10563}' {
+ return true;
+ }
+ if c >= '\u{10570}' && c <= '\u{1057A}' {
+ return true;
+ }
+ if c >= '\u{1057C}' && c <= '\u{1058A}' {
+ return true;
+ }
+ if c >= '\u{1058C}' && c <= '\u{10592}' {
+ return true;
+ }
+ if c >= '\u{10594}' && c <= '\u{10595}' {
+ return true;
+ }
+ if c >= '\u{10597}' && c <= '\u{105A1}' {
+ return true;
+ }
+ if c >= '\u{105A3}' && c <= '\u{105B1}' {
+ return true;
+ }
+ if c >= '\u{105B3}' && c <= '\u{105B9}' {
+ return true;
+ }
+ if c >= '\u{105BB}' && c <= '\u{105BC}' {
+ return true;
+ }
+ if c >= '\u{10600}' && c <= '\u{10736}' {
+ return true;
+ }
+ if c >= '\u{10740}' && c <= '\u{10755}' {
+ return true;
+ }
+ if c >= '\u{10760}' && c <= '\u{10767}' {
+ return true;
+ }
+ if c >= '\u{10780}' && c <= '\u{10785}' {
+ return true;
+ }
+ if c >= '\u{10787}' && c <= '\u{107B0}' {
+ return true;
+ }
+ if c >= '\u{107B2}' && c <= '\u{107BA}' {
+ return true;
+ }
+ if c >= '\u{10800}' && c <= '\u{10805}' {
+ return true;
+ }
+ if c >= '\u{10808}' && c <= '\u{10808}' {
+ return true;
+ }
+ if c >= '\u{1080A}' && c <= '\u{10835}' {
+ return true;
+ }
+ if c >= '\u{10837}' && c <= '\u{10838}' {
+ return true;
+ }
+ if c >= '\u{1083C}' && c <= '\u{1083C}' {
+ return true;
+ }
+ if c >= '\u{1083F}' && c <= '\u{10855}' {
+ return true;
+ }
+ if c >= '\u{10860}' && c <= '\u{10876}' {
+ return true;
+ }
+ if c >= '\u{10880}' && c <= '\u{1089E}' {
+ return true;
+ }
+ if c >= '\u{108E0}' && c <= '\u{108F2}' {
+ return true;
+ }
+ if c >= '\u{108F4}' && c <= '\u{108F5}' {
+ return true;
+ }
+ if c >= '\u{10900}' && c <= '\u{10915}' {
+ return true;
+ }
+ if c >= '\u{10920}' && c <= '\u{10939}' {
+ return true;
+ }
+ if c >= '\u{10980}' && c <= '\u{109B7}' {
+ return true;
+ }
+ if c >= '\u{109BE}' && c <= '\u{109BF}' {
+ return true;
+ }
+ if c >= '\u{10A00}' && c <= '\u{10A00}' {
+ return true;
+ }
+ if c >= '\u{10A10}' && c <= '\u{10A13}' {
+ return true;
+ }
+ if c >= '\u{10A15}' && c <= '\u{10A17}' {
+ return true;
+ }
+ if c >= '\u{10A19}' && c <= '\u{10A35}' {
+ return true;
+ }
+ if c >= '\u{10A60}' && c <= '\u{10A7C}' {
+ return true;
+ }
+ if c >= '\u{10A80}' && c <= '\u{10A9C}' {
+ return true;
+ }
+ if c >= '\u{10AC0}' && c <= '\u{10AC7}' {
+ return true;
+ }
+ if c >= '\u{10AC9}' && c <= '\u{10AE4}' {
+ return true;
+ }
+ if c >= '\u{10B00}' && c <= '\u{10B35}' {
+ return true;
+ }
+ if c >= '\u{10B40}' && c <= '\u{10B55}' {
+ return true;
+ }
+ if c >= '\u{10B60}' && c <= '\u{10B72}' {
+ return true;
+ }
+ if c >= '\u{10B80}' && c <= '\u{10B91}' {
+ return true;
+ }
+ if c >= '\u{10C00}' && c <= '\u{10C48}' {
+ return true;
+ }
+ if c >= '\u{10C80}' && c <= '\u{10CB2}' {
+ return true;
+ }
+ if c >= '\u{10CC0}' && c <= '\u{10CF2}' {
+ return true;
+ }
+ if c >= '\u{10D00}' && c <= '\u{10D23}' {
+ return true;
+ }
+ if c >= '\u{10E80}' && c <= '\u{10EA9}' {
+ return true;
+ }
+ if c >= '\u{10EB0}' && c <= '\u{10EB1}' {
+ return true;
+ }
+ if c >= '\u{10F00}' && c <= '\u{10F1C}' {
+ return true;
+ }
+ if c >= '\u{10F27}' && c <= '\u{10F27}' {
+ return true;
+ }
+ if c >= '\u{10F30}' && c <= '\u{10F45}' {
+ return true;
+ }
+ if c >= '\u{10F70}' && c <= '\u{10F81}' {
+ return true;
+ }
+ if c >= '\u{10FB0}' && c <= '\u{10FC4}' {
+ return true;
+ }
+ if c >= '\u{10FE0}' && c <= '\u{10FF6}' {
+ return true;
+ }
+ if c >= '\u{11003}' && c <= '\u{11037}' {
+ return true;
+ }
+ if c >= '\u{11071}' && c <= '\u{11072}' {
+ return true;
+ }
+ if c >= '\u{11075}' && c <= '\u{11075}' {
+ return true;
+ }
+ if c >= '\u{11083}' && c <= '\u{110AF}' {
+ return true;
+ }
+ if c >= '\u{110D0}' && c <= '\u{110E8}' {
+ return true;
+ }
+ if c >= '\u{11103}' && c <= '\u{11126}' {
+ return true;
+ }
+ if c >= '\u{11144}' && c <= '\u{11144}' {
+ return true;
+ }
+ if c >= '\u{11147}' && c <= '\u{11147}' {
+ return true;
+ }
+ if c >= '\u{11150}' && c <= '\u{11172}' {
+ return true;
+ }
+ if c >= '\u{11176}' && c <= '\u{11176}' {
+ return true;
+ }
+ if c >= '\u{11183}' && c <= '\u{111B2}' {
+ return true;
+ }
+ if c >= '\u{111C1}' && c <= '\u{111C4}' {
+ return true;
+ }
+ if c >= '\u{111DA}' && c <= '\u{111DA}' {
+ return true;
+ }
+ if c >= '\u{111DC}' && c <= '\u{111DC}' {
+ return true;
+ }
+ if c >= '\u{11200}' && c <= '\u{11211}' {
+ return true;
+ }
+ if c >= '\u{11213}' && c <= '\u{1122B}' {
+ return true;
+ }
+ if c >= '\u{11280}' && c <= '\u{11286}' {
+ return true;
+ }
+ if c >= '\u{11288}' && c <= '\u{11288}' {
+ return true;
+ }
+ if c >= '\u{1128A}' && c <= '\u{1128D}' {
+ return true;
+ }
+ if c >= '\u{1128F}' && c <= '\u{1129D}' {
+ return true;
+ }
+ if c >= '\u{1129F}' && c <= '\u{112A8}' {
+ return true;
+ }
+ if c >= '\u{112B0}' && c <= '\u{112DE}' {
+ return true;
+ }
+ if c >= '\u{11305}' && c <= '\u{1130C}' {
+ return true;
+ }
+ if c >= '\u{1130F}' && c <= '\u{11310}' {
+ return true;
+ }
+ if c >= '\u{11313}' && c <= '\u{11328}' {
+ return true;
+ }
+ if c >= '\u{1132A}' && c <= '\u{11330}' {
+ return true;
+ }
+ if c >= '\u{11332}' && c <= '\u{11333}' {
+ return true;
+ }
+ if c >= '\u{11335}' && c <= '\u{11339}' {
+ return true;
+ }
+ if c >= '\u{1133D}' && c <= '\u{1133D}' {
+ return true;
+ }
+ if c >= '\u{11350}' && c <= '\u{11350}' {
+ return true;
+ }
+ if c >= '\u{1135D}' && c <= '\u{11361}' {
+ return true;
+ }
+ if c >= '\u{11400}' && c <= '\u{11434}' {
+ return true;
+ }
+ if c >= '\u{11447}' && c <= '\u{1144A}' {
+ return true;
+ }
+ if c >= '\u{1145F}' && c <= '\u{11461}' {
+ return true;
+ }
+ if c >= '\u{11480}' && c <= '\u{114AF}' {
+ return true;
+ }
+ if c >= '\u{114C4}' && c <= '\u{114C5}' {
+ return true;
+ }
+ if c >= '\u{114C7}' && c <= '\u{114C7}' {
+ return true;
+ }
+ if c >= '\u{11580}' && c <= '\u{115AE}' {
+ return true;
+ }
+ if c >= '\u{115D8}' && c <= '\u{115DB}' {
+ return true;
+ }
+ if c >= '\u{11600}' && c <= '\u{1162F}' {
+ return true;
+ }
+ if c >= '\u{11644}' && c <= '\u{11644}' {
+ return true;
+ }
+ if c >= '\u{11680}' && c <= '\u{116AA}' {
+ return true;
+ }
+ if c >= '\u{116B8}' && c <= '\u{116B8}' {
+ return true;
+ }
+ if c >= '\u{11700}' && c <= '\u{1171A}' {
+ return true;
+ }
+ if c >= '\u{11740}' && c <= '\u{11746}' {
+ return true;
+ }
+ if c >= '\u{11800}' && c <= '\u{1182B}' {
+ return true;
+ }
+ if c >= '\u{118A0}' && c <= '\u{118DF}' {
+ return true;
+ }
+ if c >= '\u{118FF}' && c <= '\u{11906}' {
+ return true;
+ }
+ if c >= '\u{11909}' && c <= '\u{11909}' {
+ return true;
+ }
+ if c >= '\u{1190C}' && c <= '\u{11913}' {
+ return true;
+ }
+ if c >= '\u{11915}' && c <= '\u{11916}' {
+ return true;
+ }
+ if c >= '\u{11918}' && c <= '\u{1192F}' {
+ return true;
+ }
+ if c >= '\u{1193F}' && c <= '\u{1193F}' {
+ return true;
+ }
+ if c >= '\u{11941}' && c <= '\u{11941}' {
+ return true;
+ }
+ if c >= '\u{119A0}' && c <= '\u{119A7}' {
+ return true;
+ }
+ if c >= '\u{119AA}' && c <= '\u{119D0}' {
+ return true;
+ }
+ if c >= '\u{119E1}' && c <= '\u{119E1}' {
+ return true;
+ }
+ if c >= '\u{119E3}' && c <= '\u{119E3}' {
+ return true;
+ }
+ if c >= '\u{11A00}' && c <= '\u{11A00}' {
+ return true;
+ }
+ if c >= '\u{11A0B}' && c <= '\u{11A32}' {
+ return true;
+ }
+ if c >= '\u{11A3A}' && c <= '\u{11A3A}' {
+ return true;
+ }
+ if c >= '\u{11A50}' && c <= '\u{11A50}' {
+ return true;
+ }
+ if c >= '\u{11A5C}' && c <= '\u{11A89}' {
+ return true;
+ }
+ if c >= '\u{11A9D}' && c <= '\u{11A9D}' {
+ return true;
+ }
+ if c >= '\u{11AB0}' && c <= '\u{11AF8}' {
+ return true;
+ }
+ if c >= '\u{11C00}' && c <= '\u{11C08}' {
+ return true;
+ }
+ if c >= '\u{11C0A}' && c <= '\u{11C2E}' {
+ return true;
+ }
+ if c >= '\u{11C40}' && c <= '\u{11C40}' {
+ return true;
+ }
+ if c >= '\u{11C72}' && c <= '\u{11C8F}' {
+ return true;
+ }
+ if c >= '\u{11D00}' && c <= '\u{11D06}' {
+ return true;
+ }
+ if c >= '\u{11D08}' && c <= '\u{11D09}' {
+ return true;
+ }
+ if c >= '\u{11D0B}' && c <= '\u{11D30}' {
+ return true;
+ }
+ if c >= '\u{11D46}' && c <= '\u{11D46}' {
+ return true;
+ }
+ if c >= '\u{11D60}' && c <= '\u{11D65}' {
+ return true;
+ }
+ if c >= '\u{11D67}' && c <= '\u{11D68}' {
+ return true;
+ }
+ if c >= '\u{11D6A}' && c <= '\u{11D89}' {
+ return true;
+ }
+ if c >= '\u{11D98}' && c <= '\u{11D98}' {
+ return true;
+ }
+ if c >= '\u{11EE0}' && c <= '\u{11EF2}' {
+ return true;
+ }
+ if c >= '\u{11FB0}' && c <= '\u{11FB0}' {
+ return true;
+ }
+ if c >= '\u{12000}' && c <= '\u{12399}' {
+ return true;
+ }
+ if c >= '\u{12400}' && c <= '\u{1246E}' {
+ return true;
+ }
+ if c >= '\u{12480}' && c <= '\u{12543}' {
+ return true;
+ }
+ if c >= '\u{12F90}' && c <= '\u{12FF0}' {
+ return true;
+ }
+ if c >= '\u{13000}' && c <= '\u{1342E}' {
+ return true;
+ }
+ if c >= '\u{14400}' && c <= '\u{14646}' {
+ return true;
+ }
+ if c >= '\u{16800}' && c <= '\u{16A38}' {
+ return true;
+ }
+ if c >= '\u{16A40}' && c <= '\u{16A5E}' {
+ return true;
+ }
+ if c >= '\u{16A70}' && c <= '\u{16ABE}' {
+ return true;
+ }
+ if c >= '\u{16AD0}' && c <= '\u{16AED}' {
+ return true;
+ }
+ if c >= '\u{16B00}' && c <= '\u{16B2F}' {
+ return true;
+ }
+ if c >= '\u{16B40}' && c <= '\u{16B43}' {
+ return true;
+ }
+ if c >= '\u{16B63}' && c <= '\u{16B77}' {
+ return true;
+ }
+ if c >= '\u{16B7D}' && c <= '\u{16B8F}' {
+ return true;
+ }
+ if c >= '\u{16E40}' && c <= '\u{16E7F}' {
+ return true;
+ }
+ if c >= '\u{16F00}' && c <= '\u{16F4A}' {
+ return true;
+ }
+ if c >= '\u{16F50}' && c <= '\u{16F50}' {
+ return true;
+ }
+ if c >= '\u{16F93}' && c <= '\u{16F9F}' {
+ return true;
+ }
+ if c >= '\u{16FE0}' && c <= '\u{16FE1}' {
+ return true;
+ }
+ if c >= '\u{16FE3}' && c <= '\u{16FE3}' {
+ return true;
+ }
+ if c >= '\u{17000}' && c <= '\u{187F7}' {
+ return true;
+ }
+ if c >= '\u{18800}' && c <= '\u{18CD5}' {
+ return true;
+ }
+ if c >= '\u{18D00}' && c <= '\u{18D08}' {
+ return true;
+ }
+ if c >= '\u{1AFF0}' && c <= '\u{1AFF3}' {
+ return true;
+ }
+ if c >= '\u{1AFF5}' && c <= '\u{1AFFB}' {
+ return true;
+ }
+ if c >= '\u{1AFFD}' && c <= '\u{1AFFE}' {
+ return true;
+ }
+ if c >= '\u{1B000}' && c <= '\u{1B122}' {
+ return true;
+ }
+ if c >= '\u{1B150}' && c <= '\u{1B152}' {
+ return true;
+ }
+ if c >= '\u{1B164}' && c <= '\u{1B167}' {
+ return true;
+ }
+ if c >= '\u{1B170}' && c <= '\u{1B2FB}' {
+ return true;
+ }
+ if c >= '\u{1BC00}' && c <= '\u{1BC6A}' {
+ return true;
+ }
+ if c >= '\u{1BC70}' && c <= '\u{1BC7C}' {
+ return true;
+ }
+ if c >= '\u{1BC80}' && c <= '\u{1BC88}' {
+ return true;
+ }
+ if c >= '\u{1BC90}' && c <= '\u{1BC99}' {
+ return true;
+ }
+ if c >= '\u{1D400}' && c <= '\u{1D454}' {
+ return true;
+ }
+ if c >= '\u{1D456}' && c <= '\u{1D49C}' {
+ return true;
+ }
+ if c >= '\u{1D49E}' && c <= '\u{1D49F}' {
+ return true;
+ }
+ if c >= '\u{1D4A2}' && c <= '\u{1D4A2}' {
+ return true;
+ }
+ if c >= '\u{1D4A5}' && c <= '\u{1D4A6}' {
+ return true;
+ }
+ if c >= '\u{1D4A9}' && c <= '\u{1D4AC}' {
+ return true;
+ }
+ if c >= '\u{1D4AE}' && c <= '\u{1D4B9}' {
+ return true;
+ }
+ if c >= '\u{1D4BB}' && c <= '\u{1D4BB}' {
+ return true;
+ }
+ if c >= '\u{1D4BD}' && c <= '\u{1D4C3}' {
+ return true;
+ }
+ if c >= '\u{1D4C5}' && c <= '\u{1D505}' {
+ return true;
+ }
+ if c >= '\u{1D507}' && c <= '\u{1D50A}' {
+ return true;
+ }
+ if c >= '\u{1D50D}' && c <= '\u{1D514}' {
+ return true;
+ }
+ if c >= '\u{1D516}' && c <= '\u{1D51C}' {
+ return true;
+ }
+ if c >= '\u{1D51E}' && c <= '\u{1D539}' {
+ return true;
+ }
+ if c >= '\u{1D53B}' && c <= '\u{1D53E}' {
+ return true;
+ }
+ if c >= '\u{1D540}' && c <= '\u{1D544}' {
+ return true;
+ }
+ if c >= '\u{1D546}' && c <= '\u{1D546}' {
+ return true;
+ }
+ if c >= '\u{1D54A}' && c <= '\u{1D550}' {
+ return true;
+ }
+ if c >= '\u{1D552}' && c <= '\u{1D6A5}' {
+ return true;
+ }
+ if c >= '\u{1D6A8}' && c <= '\u{1D6C0}' {
+ return true;
+ }
+ if c >= '\u{1D6C2}' && c <= '\u{1D6DA}' {
+ return true;
+ }
+ if c >= '\u{1D6DC}' && c <= '\u{1D6FA}' {
+ return true;
+ }
+ if c >= '\u{1D6FC}' && c <= '\u{1D714}' {
+ return true;
+ }
+ if c >= '\u{1D716}' && c <= '\u{1D734}' {
+ return true;
+ }
+ if c >= '\u{1D736}' && c <= '\u{1D74E}' {
+ return true;
+ }
+ if c >= '\u{1D750}' && c <= '\u{1D76E}' {
+ return true;
+ }
+ if c >= '\u{1D770}' && c <= '\u{1D788}' {
+ return true;
+ }
+ if c >= '\u{1D78A}' && c <= '\u{1D7A8}' {
+ return true;
+ }
+ if c >= '\u{1D7AA}' && c <= '\u{1D7C2}' {
+ return true;
+ }
+ if c >= '\u{1D7C4}' && c <= '\u{1D7CB}' {
+ return true;
+ }
+ if c >= '\u{1DF00}' && c <= '\u{1DF1E}' {
+ return true;
+ }
+ if c >= '\u{1E100}' && c <= '\u{1E12C}' {
+ return true;
+ }
+ if c >= '\u{1E137}' && c <= '\u{1E13D}' {
+ return true;
+ }
+ if c >= '\u{1E14E}' && c <= '\u{1E14E}' {
+ return true;
+ }
+ if c >= '\u{1E290}' && c <= '\u{1E2AD}' {
+ return true;
+ }
+ if c >= '\u{1E2C0}' && c <= '\u{1E2EB}' {
+ return true;
+ }
+ if c >= '\u{1E7E0}' && c <= '\u{1E7E6}' {
+ return true;
+ }
+ if c >= '\u{1E7E8}' && c <= '\u{1E7EB}' {
+ return true;
+ }
+ if c >= '\u{1E7ED}' && c <= '\u{1E7EE}' {
+ return true;
+ }
+ if c >= '\u{1E7F0}' && c <= '\u{1E7FE}' {
+ return true;
+ }
+ if c >= '\u{1E800}' && c <= '\u{1E8C4}' {
+ return true;
+ }
+ if c >= '\u{1E900}' && c <= '\u{1E943}' {
+ return true;
+ }
+ if c >= '\u{1E94B}' && c <= '\u{1E94B}' {
+ return true;
+ }
+ if c >= '\u{1EE00}' && c <= '\u{1EE03}' {
+ return true;
+ }
+ if c >= '\u{1EE05}' && c <= '\u{1EE1F}' {
+ return true;
+ }
+ if c >= '\u{1EE21}' && c <= '\u{1EE22}' {
+ return true;
+ }
+ if c >= '\u{1EE24}' && c <= '\u{1EE24}' {
+ return true;
+ }
+ if c >= '\u{1EE27}' && c <= '\u{1EE27}' {
+ return true;
+ }
+ if c >= '\u{1EE29}' && c <= '\u{1EE32}' {
+ return true;
+ }
+ if c >= '\u{1EE34}' && c <= '\u{1EE37}' {
+ return true;
+ }
+ if c >= '\u{1EE39}' && c <= '\u{1EE39}' {
+ return true;
+ }
+ if c >= '\u{1EE3B}' && c <= '\u{1EE3B}' {
+ return true;
+ }
+ if c >= '\u{1EE42}' && c <= '\u{1EE42}' {
+ return true;
+ }
+ if c >= '\u{1EE47}' && c <= '\u{1EE47}' {
+ return true;
+ }
+ if c >= '\u{1EE49}' && c <= '\u{1EE49}' {
+ return true;
+ }
+ if c >= '\u{1EE4B}' && c <= '\u{1EE4B}' {
+ return true;
+ }
+ if c >= '\u{1EE4D}' && c <= '\u{1EE4F}' {
+ return true;
+ }
+ if c >= '\u{1EE51}' && c <= '\u{1EE52}' {
+ return true;
+ }
+ if c >= '\u{1EE54}' && c <= '\u{1EE54}' {
+ return true;
+ }
+ if c >= '\u{1EE57}' && c <= '\u{1EE57}' {
+ return true;
+ }
+ if c >= '\u{1EE59}' && c <= '\u{1EE59}' {
+ return true;
+ }
+ if c >= '\u{1EE5B}' && c <= '\u{1EE5B}' {
+ return true;
+ }
+ if c >= '\u{1EE5D}' && c <= '\u{1EE5D}' {
+ return true;
+ }
+ if c >= '\u{1EE5F}' && c <= '\u{1EE5F}' {
+ return true;
+ }
+ if c >= '\u{1EE61}' && c <= '\u{1EE62}' {
+ return true;
+ }
+ if c >= '\u{1EE64}' && c <= '\u{1EE64}' {
+ return true;
+ }
+ if c >= '\u{1EE67}' && c <= '\u{1EE6A}' {
+ return true;
+ }
+ if c >= '\u{1EE6C}' && c <= '\u{1EE72}' {
+ return true;
+ }
+ if c >= '\u{1EE74}' && c <= '\u{1EE77}' {
+ return true;
+ }
+ if c >= '\u{1EE79}' && c <= '\u{1EE7C}' {
+ return true;
+ }
+ if c >= '\u{1EE7E}' && c <= '\u{1EE7E}' {
+ return true;
+ }
+ if c >= '\u{1EE80}' && c <= '\u{1EE89}' {
+ return true;
+ }
+ if c >= '\u{1EE8B}' && c <= '\u{1EE9B}' {
+ return true;
+ }
+ if c >= '\u{1EEA1}' && c <= '\u{1EEA3}' {
+ return true;
+ }
+ if c >= '\u{1EEA5}' && c <= '\u{1EEA9}' {
+ return true;
+ }
+ if c >= '\u{1EEAB}' && c <= '\u{1EEBB}' {
+ return true;
+ }
+ if c >= '\u{20000}' && c <= '\u{2A6DF}' {
+ return true;
+ }
+ if c >= '\u{2A700}' && c <= '\u{2B738}' {
+ return true;
+ }
+ if c >= '\u{2B740}' && c <= '\u{2B81D}' {
+ return true;
+ }
+ if c >= '\u{2B820}' && c <= '\u{2CEA1}' {
+ return true;
+ }
+ if c >= '\u{2CEB0}' && c <= '\u{2EBE0}' {
+ return true;
+ }
+ if c >= '\u{2F800}' && c <= '\u{2FA1D}' {
+ return true;
+ }
+ if c >= '\u{30000}' && c <= '\u{3134A}' {
+ return true;
+ }
+ false
+}
+
+pub fn is_id_continue_non_bmp(c: char) -> bool {
+ if c >= '\u{10000}' && c <= '\u{1000B}' {
+ return true;
+ }
+ if c >= '\u{1000D}' && c <= '\u{10026}' {
+ return true;
+ }
+ if c >= '\u{10028}' && c <= '\u{1003A}' {
+ return true;
+ }
+ if c >= '\u{1003C}' && c <= '\u{1003D}' {
+ return true;
+ }
+ if c >= '\u{1003F}' && c <= '\u{1004D}' {
+ return true;
+ }
+ if c >= '\u{10050}' && c <= '\u{1005D}' {
+ return true;
+ }
+ if c >= '\u{10080}' && c <= '\u{100FA}' {
+ return true;
+ }
+ if c >= '\u{10140}' && c <= '\u{10174}' {
+ return true;
+ }
+ if c >= '\u{101FD}' && c <= '\u{101FD}' {
+ return true;
+ }
+ if c >= '\u{10280}' && c <= '\u{1029C}' {
+ return true;
+ }
+ if c >= '\u{102A0}' && c <= '\u{102D0}' {
+ return true;
+ }
+ if c >= '\u{102E0}' && c <= '\u{102E0}' {
+ return true;
+ }
+ if c >= '\u{10300}' && c <= '\u{1031F}' {
+ return true;
+ }
+ if c >= '\u{1032D}' && c <= '\u{1034A}' {
+ return true;
+ }
+ if c >= '\u{10350}' && c <= '\u{1037A}' {
+ return true;
+ }
+ if c >= '\u{10380}' && c <= '\u{1039D}' {
+ return true;
+ }
+ if c >= '\u{103A0}' && c <= '\u{103C3}' {
+ return true;
+ }
+ if c >= '\u{103C8}' && c <= '\u{103CF}' {
+ return true;
+ }
+ if c >= '\u{103D1}' && c <= '\u{103D5}' {
+ return true;
+ }
+ if c >= '\u{10400}' && c <= '\u{1049D}' {
+ return true;
+ }
+ if c >= '\u{104A0}' && c <= '\u{104A9}' {
+ return true;
+ }
+ if c >= '\u{104B0}' && c <= '\u{104D3}' {
+ return true;
+ }
+ if c >= '\u{104D8}' && c <= '\u{104FB}' {
+ return true;
+ }
+ if c >= '\u{10500}' && c <= '\u{10527}' {
+ return true;
+ }
+ if c >= '\u{10530}' && c <= '\u{10563}' {
+ return true;
+ }
+ if c >= '\u{10570}' && c <= '\u{1057A}' {
+ return true;
+ }
+ if c >= '\u{1057C}' && c <= '\u{1058A}' {
+ return true;
+ }
+ if c >= '\u{1058C}' && c <= '\u{10592}' {
+ return true;
+ }
+ if c >= '\u{10594}' && c <= '\u{10595}' {
+ return true;
+ }
+ if c >= '\u{10597}' && c <= '\u{105A1}' {
+ return true;
+ }
+ if c >= '\u{105A3}' && c <= '\u{105B1}' {
+ return true;
+ }
+ if c >= '\u{105B3}' && c <= '\u{105B9}' {
+ return true;
+ }
+ if c >= '\u{105BB}' && c <= '\u{105BC}' {
+ return true;
+ }
+ if c >= '\u{10600}' && c <= '\u{10736}' {
+ return true;
+ }
+ if c >= '\u{10740}' && c <= '\u{10755}' {
+ return true;
+ }
+ if c >= '\u{10760}' && c <= '\u{10767}' {
+ return true;
+ }
+ if c >= '\u{10780}' && c <= '\u{10785}' {
+ return true;
+ }
+ if c >= '\u{10787}' && c <= '\u{107B0}' {
+ return true;
+ }
+ if c >= '\u{107B2}' && c <= '\u{107BA}' {
+ return true;
+ }
+ if c >= '\u{10800}' && c <= '\u{10805}' {
+ return true;
+ }
+ if c >= '\u{10808}' && c <= '\u{10808}' {
+ return true;
+ }
+ if c >= '\u{1080A}' && c <= '\u{10835}' {
+ return true;
+ }
+ if c >= '\u{10837}' && c <= '\u{10838}' {
+ return true;
+ }
+ if c >= '\u{1083C}' && c <= '\u{1083C}' {
+ return true;
+ }
+ if c >= '\u{1083F}' && c <= '\u{10855}' {
+ return true;
+ }
+ if c >= '\u{10860}' && c <= '\u{10876}' {
+ return true;
+ }
+ if c >= '\u{10880}' && c <= '\u{1089E}' {
+ return true;
+ }
+ if c >= '\u{108E0}' && c <= '\u{108F2}' {
+ return true;
+ }
+ if c >= '\u{108F4}' && c <= '\u{108F5}' {
+ return true;
+ }
+ if c >= '\u{10900}' && c <= '\u{10915}' {
+ return true;
+ }
+ if c >= '\u{10920}' && c <= '\u{10939}' {
+ return true;
+ }
+ if c >= '\u{10980}' && c <= '\u{109B7}' {
+ return true;
+ }
+ if c >= '\u{109BE}' && c <= '\u{109BF}' {
+ return true;
+ }
+ if c >= '\u{10A00}' && c <= '\u{10A03}' {
+ return true;
+ }
+ if c >= '\u{10A05}' && c <= '\u{10A06}' {
+ return true;
+ }
+ if c >= '\u{10A0C}' && c <= '\u{10A13}' {
+ return true;
+ }
+ if c >= '\u{10A15}' && c <= '\u{10A17}' {
+ return true;
+ }
+ if c >= '\u{10A19}' && c <= '\u{10A35}' {
+ return true;
+ }
+ if c >= '\u{10A38}' && c <= '\u{10A3A}' {
+ return true;
+ }
+ if c >= '\u{10A3F}' && c <= '\u{10A3F}' {
+ return true;
+ }
+ if c >= '\u{10A60}' && c <= '\u{10A7C}' {
+ return true;
+ }
+ if c >= '\u{10A80}' && c <= '\u{10A9C}' {
+ return true;
+ }
+ if c >= '\u{10AC0}' && c <= '\u{10AC7}' {
+ return true;
+ }
+ if c >= '\u{10AC9}' && c <= '\u{10AE6}' {
+ return true;
+ }
+ if c >= '\u{10B00}' && c <= '\u{10B35}' {
+ return true;
+ }
+ if c >= '\u{10B40}' && c <= '\u{10B55}' {
+ return true;
+ }
+ if c >= '\u{10B60}' && c <= '\u{10B72}' {
+ return true;
+ }
+ if c >= '\u{10B80}' && c <= '\u{10B91}' {
+ return true;
+ }
+ if c >= '\u{10C00}' && c <= '\u{10C48}' {
+ return true;
+ }
+ if c >= '\u{10C80}' && c <= '\u{10CB2}' {
+ return true;
+ }
+ if c >= '\u{10CC0}' && c <= '\u{10CF2}' {
+ return true;
+ }
+ if c >= '\u{10D00}' && c <= '\u{10D27}' {
+ return true;
+ }
+ if c >= '\u{10D30}' && c <= '\u{10D39}' {
+ return true;
+ }
+ if c >= '\u{10E80}' && c <= '\u{10EA9}' {
+ return true;
+ }
+ if c >= '\u{10EAB}' && c <= '\u{10EAC}' {
+ return true;
+ }
+ if c >= '\u{10EB0}' && c <= '\u{10EB1}' {
+ return true;
+ }
+ if c >= '\u{10F00}' && c <= '\u{10F1C}' {
+ return true;
+ }
+ if c >= '\u{10F27}' && c <= '\u{10F27}' {
+ return true;
+ }
+ if c >= '\u{10F30}' && c <= '\u{10F50}' {
+ return true;
+ }
+ if c >= '\u{10F70}' && c <= '\u{10F85}' {
+ return true;
+ }
+ if c >= '\u{10FB0}' && c <= '\u{10FC4}' {
+ return true;
+ }
+ if c >= '\u{10FE0}' && c <= '\u{10FF6}' {
+ return true;
+ }
+ if c >= '\u{11000}' && c <= '\u{11046}' {
+ return true;
+ }
+ if c >= '\u{11066}' && c <= '\u{11075}' {
+ return true;
+ }
+ if c >= '\u{1107F}' && c <= '\u{110BA}' {
+ return true;
+ }
+ if c >= '\u{110C2}' && c <= '\u{110C2}' {
+ return true;
+ }
+ if c >= '\u{110D0}' && c <= '\u{110E8}' {
+ return true;
+ }
+ if c >= '\u{110F0}' && c <= '\u{110F9}' {
+ return true;
+ }
+ if c >= '\u{11100}' && c <= '\u{11134}' {
+ return true;
+ }
+ if c >= '\u{11136}' && c <= '\u{1113F}' {
+ return true;
+ }
+ if c >= '\u{11144}' && c <= '\u{11147}' {
+ return true;
+ }
+ if c >= '\u{11150}' && c <= '\u{11173}' {
+ return true;
+ }
+ if c >= '\u{11176}' && c <= '\u{11176}' {
+ return true;
+ }
+ if c >= '\u{11180}' && c <= '\u{111C4}' {
+ return true;
+ }
+ if c >= '\u{111C9}' && c <= '\u{111CC}' {
+ return true;
+ }
+ if c >= '\u{111CE}' && c <= '\u{111DA}' {
+ return true;
+ }
+ if c >= '\u{111DC}' && c <= '\u{111DC}' {
+ return true;
+ }
+ if c >= '\u{11200}' && c <= '\u{11211}' {
+ return true;
+ }
+ if c >= '\u{11213}' && c <= '\u{11237}' {
+ return true;
+ }
+ if c >= '\u{1123E}' && c <= '\u{1123E}' {
+ return true;
+ }
+ if c >= '\u{11280}' && c <= '\u{11286}' {
+ return true;
+ }
+ if c >= '\u{11288}' && c <= '\u{11288}' {
+ return true;
+ }
+ if c >= '\u{1128A}' && c <= '\u{1128D}' {
+ return true;
+ }
+ if c >= '\u{1128F}' && c <= '\u{1129D}' {
+ return true;
+ }
+ if c >= '\u{1129F}' && c <= '\u{112A8}' {
+ return true;
+ }
+ if c >= '\u{112B0}' && c <= '\u{112EA}' {
+ return true;
+ }
+ if c >= '\u{112F0}' && c <= '\u{112F9}' {
+ return true;
+ }
+ if c >= '\u{11300}' && c <= '\u{11303}' {
+ return true;
+ }
+ if c >= '\u{11305}' && c <= '\u{1130C}' {
+ return true;
+ }
+ if c >= '\u{1130F}' && c <= '\u{11310}' {
+ return true;
+ }
+ if c >= '\u{11313}' && c <= '\u{11328}' {
+ return true;
+ }
+ if c >= '\u{1132A}' && c <= '\u{11330}' {
+ return true;
+ }
+ if c >= '\u{11332}' && c <= '\u{11333}' {
+ return true;
+ }
+ if c >= '\u{11335}' && c <= '\u{11339}' {
+ return true;
+ }
+ if c >= '\u{1133B}' && c <= '\u{11344}' {
+ return true;
+ }
+ if c >= '\u{11347}' && c <= '\u{11348}' {
+ return true;
+ }
+ if c >= '\u{1134B}' && c <= '\u{1134D}' {
+ return true;
+ }
+ if c >= '\u{11350}' && c <= '\u{11350}' {
+ return true;
+ }
+ if c >= '\u{11357}' && c <= '\u{11357}' {
+ return true;
+ }
+ if c >= '\u{1135D}' && c <= '\u{11363}' {
+ return true;
+ }
+ if c >= '\u{11366}' && c <= '\u{1136C}' {
+ return true;
+ }
+ if c >= '\u{11370}' && c <= '\u{11374}' {
+ return true;
+ }
+ if c >= '\u{11400}' && c <= '\u{1144A}' {
+ return true;
+ }
+ if c >= '\u{11450}' && c <= '\u{11459}' {
+ return true;
+ }
+ if c >= '\u{1145E}' && c <= '\u{11461}' {
+ return true;
+ }
+ if c >= '\u{11480}' && c <= '\u{114C5}' {
+ return true;
+ }
+ if c >= '\u{114C7}' && c <= '\u{114C7}' {
+ return true;
+ }
+ if c >= '\u{114D0}' && c <= '\u{114D9}' {
+ return true;
+ }
+ if c >= '\u{11580}' && c <= '\u{115B5}' {
+ return true;
+ }
+ if c >= '\u{115B8}' && c <= '\u{115C0}' {
+ return true;
+ }
+ if c >= '\u{115D8}' && c <= '\u{115DD}' {
+ return true;
+ }
+ if c >= '\u{11600}' && c <= '\u{11640}' {
+ return true;
+ }
+ if c >= '\u{11644}' && c <= '\u{11644}' {
+ return true;
+ }
+ if c >= '\u{11650}' && c <= '\u{11659}' {
+ return true;
+ }
+ if c >= '\u{11680}' && c <= '\u{116B8}' {
+ return true;
+ }
+ if c >= '\u{116C0}' && c <= '\u{116C9}' {
+ return true;
+ }
+ if c >= '\u{11700}' && c <= '\u{1171A}' {
+ return true;
+ }
+ if c >= '\u{1171D}' && c <= '\u{1172B}' {
+ return true;
+ }
+ if c >= '\u{11730}' && c <= '\u{11739}' {
+ return true;
+ }
+ if c >= '\u{11740}' && c <= '\u{11746}' {
+ return true;
+ }
+ if c >= '\u{11800}' && c <= '\u{1183A}' {
+ return true;
+ }
+ if c >= '\u{118A0}' && c <= '\u{118E9}' {
+ return true;
+ }
+ if c >= '\u{118FF}' && c <= '\u{11906}' {
+ return true;
+ }
+ if c >= '\u{11909}' && c <= '\u{11909}' {
+ return true;
+ }
+ if c >= '\u{1190C}' && c <= '\u{11913}' {
+ return true;
+ }
+ if c >= '\u{11915}' && c <= '\u{11916}' {
+ return true;
+ }
+ if c >= '\u{11918}' && c <= '\u{11935}' {
+ return true;
+ }
+ if c >= '\u{11937}' && c <= '\u{11938}' {
+ return true;
+ }
+ if c >= '\u{1193B}' && c <= '\u{11943}' {
+ return true;
+ }
+ if c >= '\u{11950}' && c <= '\u{11959}' {
+ return true;
+ }
+ if c >= '\u{119A0}' && c <= '\u{119A7}' {
+ return true;
+ }
+ if c >= '\u{119AA}' && c <= '\u{119D7}' {
+ return true;
+ }
+ if c >= '\u{119DA}' && c <= '\u{119E1}' {
+ return true;
+ }
+ if c >= '\u{119E3}' && c <= '\u{119E4}' {
+ return true;
+ }
+ if c >= '\u{11A00}' && c <= '\u{11A3E}' {
+ return true;
+ }
+ if c >= '\u{11A47}' && c <= '\u{11A47}' {
+ return true;
+ }
+ if c >= '\u{11A50}' && c <= '\u{11A99}' {
+ return true;
+ }
+ if c >= '\u{11A9D}' && c <= '\u{11A9D}' {
+ return true;
+ }
+ if c >= '\u{11AB0}' && c <= '\u{11AF8}' {
+ return true;
+ }
+ if c >= '\u{11C00}' && c <= '\u{11C08}' {
+ return true;
+ }
+ if c >= '\u{11C0A}' && c <= '\u{11C36}' {
+ return true;
+ }
+ if c >= '\u{11C38}' && c <= '\u{11C40}' {
+ return true;
+ }
+ if c >= '\u{11C50}' && c <= '\u{11C59}' {
+ return true;
+ }
+ if c >= '\u{11C72}' && c <= '\u{11C8F}' {
+ return true;
+ }
+ if c >= '\u{11C92}' && c <= '\u{11CA7}' {
+ return true;
+ }
+ if c >= '\u{11CA9}' && c <= '\u{11CB6}' {
+ return true;
+ }
+ if c >= '\u{11D00}' && c <= '\u{11D06}' {
+ return true;
+ }
+ if c >= '\u{11D08}' && c <= '\u{11D09}' {
+ return true;
+ }
+ if c >= '\u{11D0B}' && c <= '\u{11D36}' {
+ return true;
+ }
+ if c >= '\u{11D3A}' && c <= '\u{11D3A}' {
+ return true;
+ }
+ if c >= '\u{11D3C}' && c <= '\u{11D3D}' {
+ return true;
+ }
+ if c >= '\u{11D3F}' && c <= '\u{11D47}' {
+ return true;
+ }
+ if c >= '\u{11D50}' && c <= '\u{11D59}' {
+ return true;
+ }
+ if c >= '\u{11D60}' && c <= '\u{11D65}' {
+ return true;
+ }
+ if c >= '\u{11D67}' && c <= '\u{11D68}' {
+ return true;
+ }
+ if c >= '\u{11D6A}' && c <= '\u{11D8E}' {
+ return true;
+ }
+ if c >= '\u{11D90}' && c <= '\u{11D91}' {
+ return true;
+ }
+ if c >= '\u{11D93}' && c <= '\u{11D98}' {
+ return true;
+ }
+ if c >= '\u{11DA0}' && c <= '\u{11DA9}' {
+ return true;
+ }
+ if c >= '\u{11EE0}' && c <= '\u{11EF6}' {
+ return true;
+ }
+ if c >= '\u{11FB0}' && c <= '\u{11FB0}' {
+ return true;
+ }
+ if c >= '\u{12000}' && c <= '\u{12399}' {
+ return true;
+ }
+ if c >= '\u{12400}' && c <= '\u{1246E}' {
+ return true;
+ }
+ if c >= '\u{12480}' && c <= '\u{12543}' {
+ return true;
+ }
+ if c >= '\u{12F90}' && c <= '\u{12FF0}' {
+ return true;
+ }
+ if c >= '\u{13000}' && c <= '\u{1342E}' {
+ return true;
+ }
+ if c >= '\u{14400}' && c <= '\u{14646}' {
+ return true;
+ }
+ if c >= '\u{16800}' && c <= '\u{16A38}' {
+ return true;
+ }
+ if c >= '\u{16A40}' && c <= '\u{16A5E}' {
+ return true;
+ }
+ if c >= '\u{16A60}' && c <= '\u{16A69}' {
+ return true;
+ }
+ if c >= '\u{16A70}' && c <= '\u{16ABE}' {
+ return true;
+ }
+ if c >= '\u{16AC0}' && c <= '\u{16AC9}' {
+ return true;
+ }
+ if c >= '\u{16AD0}' && c <= '\u{16AED}' {
+ return true;
+ }
+ if c >= '\u{16AF0}' && c <= '\u{16AF4}' {
+ return true;
+ }
+ if c >= '\u{16B00}' && c <= '\u{16B36}' {
+ return true;
+ }
+ if c >= '\u{16B40}' && c <= '\u{16B43}' {
+ return true;
+ }
+ if c >= '\u{16B50}' && c <= '\u{16B59}' {
+ return true;
+ }
+ if c >= '\u{16B63}' && c <= '\u{16B77}' {
+ return true;
+ }
+ if c >= '\u{16B7D}' && c <= '\u{16B8F}' {
+ return true;
+ }
+ if c >= '\u{16E40}' && c <= '\u{16E7F}' {
+ return true;
+ }
+ if c >= '\u{16F00}' && c <= '\u{16F4A}' {
+ return true;
+ }
+ if c >= '\u{16F4F}' && c <= '\u{16F87}' {
+ return true;
+ }
+ if c >= '\u{16F8F}' && c <= '\u{16F9F}' {
+ return true;
+ }
+ if c >= '\u{16FE0}' && c <= '\u{16FE1}' {
+ return true;
+ }
+ if c >= '\u{16FE3}' && c <= '\u{16FE4}' {
+ return true;
+ }
+ if c >= '\u{16FF0}' && c <= '\u{16FF1}' {
+ return true;
+ }
+ if c >= '\u{17000}' && c <= '\u{187F7}' {
+ return true;
+ }
+ if c >= '\u{18800}' && c <= '\u{18CD5}' {
+ return true;
+ }
+ if c >= '\u{18D00}' && c <= '\u{18D08}' {
+ return true;
+ }
+ if c >= '\u{1AFF0}' && c <= '\u{1AFF3}' {
+ return true;
+ }
+ if c >= '\u{1AFF5}' && c <= '\u{1AFFB}' {
+ return true;
+ }
+ if c >= '\u{1AFFD}' && c <= '\u{1AFFE}' {
+ return true;
+ }
+ if c >= '\u{1B000}' && c <= '\u{1B122}' {
+ return true;
+ }
+ if c >= '\u{1B150}' && c <= '\u{1B152}' {
+ return true;
+ }
+ if c >= '\u{1B164}' && c <= '\u{1B167}' {
+ return true;
+ }
+ if c >= '\u{1B170}' && c <= '\u{1B2FB}' {
+ return true;
+ }
+ if c >= '\u{1BC00}' && c <= '\u{1BC6A}' {
+ return true;
+ }
+ if c >= '\u{1BC70}' && c <= '\u{1BC7C}' {
+ return true;
+ }
+ if c >= '\u{1BC80}' && c <= '\u{1BC88}' {
+ return true;
+ }
+ if c >= '\u{1BC90}' && c <= '\u{1BC99}' {
+ return true;
+ }
+ if c >= '\u{1BC9D}' && c <= '\u{1BC9E}' {
+ return true;
+ }
+ if c >= '\u{1CF00}' && c <= '\u{1CF2D}' {
+ return true;
+ }
+ if c >= '\u{1CF30}' && c <= '\u{1CF46}' {
+ return true;
+ }
+ if c >= '\u{1D165}' && c <= '\u{1D169}' {
+ return true;
+ }
+ if c >= '\u{1D16D}' && c <= '\u{1D172}' {
+ return true;
+ }
+ if c >= '\u{1D17B}' && c <= '\u{1D182}' {
+ return true;
+ }
+ if c >= '\u{1D185}' && c <= '\u{1D18B}' {
+ return true;
+ }
+ if c >= '\u{1D1AA}' && c <= '\u{1D1AD}' {
+ return true;
+ }
+ if c >= '\u{1D242}' && c <= '\u{1D244}' {
+ return true;
+ }
+ if c >= '\u{1D400}' && c <= '\u{1D454}' {
+ return true;
+ }
+ if c >= '\u{1D456}' && c <= '\u{1D49C}' {
+ return true;
+ }
+ if c >= '\u{1D49E}' && c <= '\u{1D49F}' {
+ return true;
+ }
+ if c >= '\u{1D4A2}' && c <= '\u{1D4A2}' {
+ return true;
+ }
+ if c >= '\u{1D4A5}' && c <= '\u{1D4A6}' {
+ return true;
+ }
+ if c >= '\u{1D4A9}' && c <= '\u{1D4AC}' {
+ return true;
+ }
+ if c >= '\u{1D4AE}' && c <= '\u{1D4B9}' {
+ return true;
+ }
+ if c >= '\u{1D4BB}' && c <= '\u{1D4BB}' {
+ return true;
+ }
+ if c >= '\u{1D4BD}' && c <= '\u{1D4C3}' {
+ return true;
+ }
+ if c >= '\u{1D4C5}' && c <= '\u{1D505}' {
+ return true;
+ }
+ if c >= '\u{1D507}' && c <= '\u{1D50A}' {
+ return true;
+ }
+ if c >= '\u{1D50D}' && c <= '\u{1D514}' {
+ return true;
+ }
+ if c >= '\u{1D516}' && c <= '\u{1D51C}' {
+ return true;
+ }
+ if c >= '\u{1D51E}' && c <= '\u{1D539}' {
+ return true;
+ }
+ if c >= '\u{1D53B}' && c <= '\u{1D53E}' {
+ return true;
+ }
+ if c >= '\u{1D540}' && c <= '\u{1D544}' {
+ return true;
+ }
+ if c >= '\u{1D546}' && c <= '\u{1D546}' {
+ return true;
+ }
+ if c >= '\u{1D54A}' && c <= '\u{1D550}' {
+ return true;
+ }
+ if c >= '\u{1D552}' && c <= '\u{1D6A5}' {
+ return true;
+ }
+ if c >= '\u{1D6A8}' && c <= '\u{1D6C0}' {
+ return true;
+ }
+ if c >= '\u{1D6C2}' && c <= '\u{1D6DA}' {
+ return true;
+ }
+ if c >= '\u{1D6DC}' && c <= '\u{1D6FA}' {
+ return true;
+ }
+ if c >= '\u{1D6FC}' && c <= '\u{1D714}' {
+ return true;
+ }
+ if c >= '\u{1D716}' && c <= '\u{1D734}' {
+ return true;
+ }
+ if c >= '\u{1D736}' && c <= '\u{1D74E}' {
+ return true;
+ }
+ if c >= '\u{1D750}' && c <= '\u{1D76E}' {
+ return true;
+ }
+ if c >= '\u{1D770}' && c <= '\u{1D788}' {
+ return true;
+ }
+ if c >= '\u{1D78A}' && c <= '\u{1D7A8}' {
+ return true;
+ }
+ if c >= '\u{1D7AA}' && c <= '\u{1D7C2}' {
+ return true;
+ }
+ if c >= '\u{1D7C4}' && c <= '\u{1D7CB}' {
+ return true;
+ }
+ if c >= '\u{1D7CE}' && c <= '\u{1D7FF}' {
+ return true;
+ }
+ if c >= '\u{1DA00}' && c <= '\u{1DA36}' {
+ return true;
+ }
+ if c >= '\u{1DA3B}' && c <= '\u{1DA6C}' {
+ return true;
+ }
+ if c >= '\u{1DA75}' && c <= '\u{1DA75}' {
+ return true;
+ }
+ if c >= '\u{1DA84}' && c <= '\u{1DA84}' {
+ return true;
+ }
+ if c >= '\u{1DA9B}' && c <= '\u{1DA9F}' {
+ return true;
+ }
+ if c >= '\u{1DAA1}' && c <= '\u{1DAAF}' {
+ return true;
+ }
+ if c >= '\u{1DF00}' && c <= '\u{1DF1E}' {
+ return true;
+ }
+ if c >= '\u{1E000}' && c <= '\u{1E006}' {
+ return true;
+ }
+ if c >= '\u{1E008}' && c <= '\u{1E018}' {
+ return true;
+ }
+ if c >= '\u{1E01B}' && c <= '\u{1E021}' {
+ return true;
+ }
+ if c >= '\u{1E023}' && c <= '\u{1E024}' {
+ return true;
+ }
+ if c >= '\u{1E026}' && c <= '\u{1E02A}' {
+ return true;
+ }
+ if c >= '\u{1E100}' && c <= '\u{1E12C}' {
+ return true;
+ }
+ if c >= '\u{1E130}' && c <= '\u{1E13D}' {
+ return true;
+ }
+ if c >= '\u{1E140}' && c <= '\u{1E149}' {
+ return true;
+ }
+ if c >= '\u{1E14E}' && c <= '\u{1E14E}' {
+ return true;
+ }
+ if c >= '\u{1E290}' && c <= '\u{1E2AE}' {
+ return true;
+ }
+ if c >= '\u{1E2C0}' && c <= '\u{1E2F9}' {
+ return true;
+ }
+ if c >= '\u{1E7E0}' && c <= '\u{1E7E6}' {
+ return true;
+ }
+ if c >= '\u{1E7E8}' && c <= '\u{1E7EB}' {
+ return true;
+ }
+ if c >= '\u{1E7ED}' && c <= '\u{1E7EE}' {
+ return true;
+ }
+ if c >= '\u{1E7F0}' && c <= '\u{1E7FE}' {
+ return true;
+ }
+ if c >= '\u{1E800}' && c <= '\u{1E8C4}' {
+ return true;
+ }
+ if c >= '\u{1E8D0}' && c <= '\u{1E8D6}' {
+ return true;
+ }
+ if c >= '\u{1E900}' && c <= '\u{1E94B}' {
+ return true;
+ }
+ if c >= '\u{1E950}' && c <= '\u{1E959}' {
+ return true;
+ }
+ if c >= '\u{1EE00}' && c <= '\u{1EE03}' {
+ return true;
+ }
+ if c >= '\u{1EE05}' && c <= '\u{1EE1F}' {
+ return true;
+ }
+ if c >= '\u{1EE21}' && c <= '\u{1EE22}' {
+ return true;
+ }
+ if c >= '\u{1EE24}' && c <= '\u{1EE24}' {
+ return true;
+ }
+ if c >= '\u{1EE27}' && c <= '\u{1EE27}' {
+ return true;
+ }
+ if c >= '\u{1EE29}' && c <= '\u{1EE32}' {
+ return true;
+ }
+ if c >= '\u{1EE34}' && c <= '\u{1EE37}' {
+ return true;
+ }
+ if c >= '\u{1EE39}' && c <= '\u{1EE39}' {
+ return true;
+ }
+ if c >= '\u{1EE3B}' && c <= '\u{1EE3B}' {
+ return true;
+ }
+ if c >= '\u{1EE42}' && c <= '\u{1EE42}' {
+ return true;
+ }
+ if c >= '\u{1EE47}' && c <= '\u{1EE47}' {
+ return true;
+ }
+ if c >= '\u{1EE49}' && c <= '\u{1EE49}' {
+ return true;
+ }
+ if c >= '\u{1EE4B}' && c <= '\u{1EE4B}' {
+ return true;
+ }
+ if c >= '\u{1EE4D}' && c <= '\u{1EE4F}' {
+ return true;
+ }
+ if c >= '\u{1EE51}' && c <= '\u{1EE52}' {
+ return true;
+ }
+ if c >= '\u{1EE54}' && c <= '\u{1EE54}' {
+ return true;
+ }
+ if c >= '\u{1EE57}' && c <= '\u{1EE57}' {
+ return true;
+ }
+ if c >= '\u{1EE59}' && c <= '\u{1EE59}' {
+ return true;
+ }
+ if c >= '\u{1EE5B}' && c <= '\u{1EE5B}' {
+ return true;
+ }
+ if c >= '\u{1EE5D}' && c <= '\u{1EE5D}' {
+ return true;
+ }
+ if c >= '\u{1EE5F}' && c <= '\u{1EE5F}' {
+ return true;
+ }
+ if c >= '\u{1EE61}' && c <= '\u{1EE62}' {
+ return true;
+ }
+ if c >= '\u{1EE64}' && c <= '\u{1EE64}' {
+ return true;
+ }
+ if c >= '\u{1EE67}' && c <= '\u{1EE6A}' {
+ return true;
+ }
+ if c >= '\u{1EE6C}' && c <= '\u{1EE72}' {
+ return true;
+ }
+ if c >= '\u{1EE74}' && c <= '\u{1EE77}' {
+ return true;
+ }
+ if c >= '\u{1EE79}' && c <= '\u{1EE7C}' {
+ return true;
+ }
+ if c >= '\u{1EE7E}' && c <= '\u{1EE7E}' {
+ return true;
+ }
+ if c >= '\u{1EE80}' && c <= '\u{1EE89}' {
+ return true;
+ }
+ if c >= '\u{1EE8B}' && c <= '\u{1EE9B}' {
+ return true;
+ }
+ if c >= '\u{1EEA1}' && c <= '\u{1EEA3}' {
+ return true;
+ }
+ if c >= '\u{1EEA5}' && c <= '\u{1EEA9}' {
+ return true;
+ }
+ if c >= '\u{1EEAB}' && c <= '\u{1EEBB}' {
+ return true;
+ }
+ if c >= '\u{1FBF0}' && c <= '\u{1FBF9}' {
+ return true;
+ }
+ if c >= '\u{20000}' && c <= '\u{2A6DF}' {
+ return true;
+ }
+ if c >= '\u{2A700}' && c <= '\u{2B738}' {
+ return true;
+ }
+ if c >= '\u{2B740}' && c <= '\u{2B81D}' {
+ return true;
+ }
+ if c >= '\u{2B820}' && c <= '\u{2CEA1}' {
+ return true;
+ }
+ if c >= '\u{2CEB0}' && c <= '\u{2EBE0}' {
+ return true;
+ }
+ if c >= '\u{2F800}' && c <= '\u{2FA1D}' {
+ return true;
+ }
+ if c >= '\u{30000}' && c <= '\u{3134A}' {
+ return true;
+ }
+ if c >= '\u{E0100}' && c <= '\u{E01EF}' {
+ return true;
+ }
+ false
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-14 13:51:34 +0000