Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1528 insertions, 0 deletions

diff --git a/vendor/globset/src/glob.rs b/vendor/globset/src/glob.rs
new file mode 100644
index 000000000..6e35aeec3
--- /dev/null
+++ b/vendor/globset/src/glob.rs
@@ -0,0 +1,1528 @@
+use std::fmt;
+use std::hash;
+use std::iter;
+use std::ops::{Deref, DerefMut};
+use std::path::{is_separator, Path};
+use std::str;
+
+use regex;
+use regex::bytes::Regex;
+
+use crate::{new_regex, Candidate, Error, ErrorKind};
+
+/// Describes a matching strategy for a particular pattern.
+///
+/// This provides a way to more quickly determine whether a pattern matches
+/// a particular file path in a way that scales with a large number of
+/// patterns. For example, if many patterns are of the form `*.ext`, then it's
+/// possible to test whether any of those patterns matches by looking up a
+/// file path's extension in a hash table.
+#[derive(Clone, Debug, Eq, PartialEq)]
+pub enum MatchStrategy {
+    /// A pattern matches if and only if the entire file path matches this
+    /// literal string.
+    Literal(String),
+    /// A pattern matches if and only if the file path's basename matches this
+    /// literal string.
+    BasenameLiteral(String),
+    /// A pattern matches if and only if the file path's extension matches this
+    /// literal string.
+    Extension(String),
+    /// A pattern matches if and only if this prefix literal is a prefix of the
+    /// candidate file path.
+    Prefix(String),
+    /// A pattern matches if and only if this prefix literal is a prefix of the
+    /// candidate file path.
+    ///
+    /// An exception: if `component` is true, then `suffix` must appear at the
+    /// beginning of a file path or immediately following a `/`.
+    Suffix {
+        /// The actual suffix.
+        suffix: String,
+        /// Whether this must start at the beginning of a path component.
+        component: bool,
+    },
+    /// A pattern matches only if the given extension matches the file path's
+    /// extension. Note that this is a necessary but NOT sufficient criterion.
+    /// Namely, if the extension matches, then a full regex search is still
+    /// required.
+    RequiredExtension(String),
+    /// A regex needs to be used for matching.
+    Regex,
+}
+
+impl MatchStrategy {
+    /// Returns a matching strategy for the given pattern.
+    pub fn new(pat: &Glob) -> MatchStrategy {
+        if let Some(lit) = pat.basename_literal() {
+            MatchStrategy::BasenameLiteral(lit)
+        } else if let Some(lit) = pat.literal() {
+            MatchStrategy::Literal(lit)
+        } else if let Some(ext) = pat.ext() {
+            MatchStrategy::Extension(ext)
+        } else if let Some(prefix) = pat.prefix() {
+            MatchStrategy::Prefix(prefix)
+        } else if let Some((suffix, component)) = pat.suffix() {
+            MatchStrategy::Suffix { suffix: suffix, component: component }
+        } else if let Some(ext) = pat.required_ext() {
+            MatchStrategy::RequiredExtension(ext)
+        } else {
+            MatchStrategy::Regex
+        }
+    }
+}
+
+/// Glob represents a successfully parsed shell glob pattern.
+///
+/// It cannot be used directly to match file paths, but it can be converted
+/// to a regular expression string or a matcher.
+#[derive(Clone, Debug, Eq)]
+pub struct Glob {
+    glob: String,
+    re: String,
+    opts: GlobOptions,
+    tokens: Tokens,
+}
+
+impl PartialEq for Glob {
+    fn eq(&self, other: &Glob) -> bool {
+        self.glob == other.glob && self.opts == other.opts
+    }
+}
+
+impl hash::Hash for Glob {
+    fn hash<H: hash::Hasher>(&self, state: &mut H) {
+        self.glob.hash(state);
+        self.opts.hash(state);
+    }
+}
+
+impl fmt::Display for Glob {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        self.glob.fmt(f)
+    }
+}
+
+impl str::FromStr for Glob {
+    type Err = Error;
+
+    fn from_str(glob: &str) -> Result<Self, Self::Err> {
+        Self::new(glob)
+    }
+}
+
+/// A matcher for a single pattern.
+#[derive(Clone, Debug)]
+pub struct GlobMatcher {
+    /// The underlying pattern.
+    pat: Glob,
+    /// The pattern, as a compiled regex.
+    re: Regex,
+}
+
+impl GlobMatcher {
+    /// Tests whether the given path matches this pattern or not.
+    pub fn is_match<P: AsRef<Path>>(&self, path: P) -> bool {
+        self.is_match_candidate(&Candidate::new(path.as_ref()))
+    }
+
+    /// Tests whether the given path matches this pattern or not.
+    pub fn is_match_candidate(&self, path: &Candidate<'_>) -> bool {
+        self.re.is_match(&path.path)
+    }
+
+    /// Returns the `Glob` used to compile this matcher.
+    pub fn glob(&self) -> &Glob {
+        &self.pat
+    }
+}
+
+/// A strategic matcher for a single pattern.
+#[cfg(test)]
+#[derive(Clone, Debug)]
+struct GlobStrategic {
+    /// The match strategy to use.
+    strategy: MatchStrategy,
+    /// The pattern, as a compiled regex.
+    re: Regex,
+}
+
+#[cfg(test)]
+impl GlobStrategic {
+    /// Tests whether the given path matches this pattern or not.
+    fn is_match<P: AsRef<Path>>(&self, path: P) -> bool {
+        self.is_match_candidate(&Candidate::new(path.as_ref()))
+    }
+
+    /// Tests whether the given path matches this pattern or not.
+    fn is_match_candidate(&self, candidate: &Candidate<'_>) -> bool {
+        let byte_path = &*candidate.path;
+
+        match self.strategy {
+            MatchStrategy::Literal(ref lit) => lit.as_bytes() == byte_path,
+            MatchStrategy::BasenameLiteral(ref lit) => {
+                lit.as_bytes() == &*candidate.basename
+            }
+            MatchStrategy::Extension(ref ext) => {
+                ext.as_bytes() == &*candidate.ext
+            }
+            MatchStrategy::Prefix(ref pre) => {
+                starts_with(pre.as_bytes(), byte_path)
+            }
+            MatchStrategy::Suffix { ref suffix, component } => {
+                if component && byte_path == &suffix.as_bytes()[1..] {
+                    return true;
+                }
+                ends_with(suffix.as_bytes(), byte_path)
+            }
+            MatchStrategy::RequiredExtension(ref ext) => {
+                let ext = ext.as_bytes();
+                &*candidate.ext == ext && self.re.is_match(byte_path)
+            }
+            MatchStrategy::Regex => self.re.is_match(byte_path),
+        }
+    }
+}
+
+/// A builder for a pattern.
+///
+/// This builder enables configuring the match semantics of a pattern. For
+/// example, one can make matching case insensitive.
+///
+/// The lifetime `'a` refers to the lifetime of the pattern string.
+#[derive(Clone, Debug)]
+pub struct GlobBuilder<'a> {
+    /// The glob pattern to compile.
+    glob: &'a str,
+    /// Options for the pattern.
+    opts: GlobOptions,
+}
+
+#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
+struct GlobOptions {
+    /// Whether to match case insensitively.
+    case_insensitive: bool,
+    /// Whether to require a literal separator to match a separator in a file
+    /// path. e.g., when enabled, `*` won't match `/`.
+    literal_separator: bool,
+    /// Whether or not to use `\` to escape special characters.
+    /// e.g., when enabled, `\*` will match a literal `*`.
+    backslash_escape: bool,
+}
+
+impl GlobOptions {
+    fn default() -> GlobOptions {
+        GlobOptions {
+            case_insensitive: false,
+            literal_separator: false,
+            backslash_escape: !is_separator('\\'),
+        }
+    }
+}
+
+#[derive(Clone, Debug, Default, Eq, PartialEq)]
+struct Tokens(Vec<Token>);
+
+impl Deref for Tokens {
+    type Target = Vec<Token>;
+    fn deref(&self) -> &Vec<Token> {
+        &self.0
+    }
+}
+
+impl DerefMut for Tokens {
+    fn deref_mut(&mut self) -> &mut Vec<Token> {
+        &mut self.0
+    }
+}
+
+#[derive(Clone, Debug, Eq, PartialEq)]
+enum Token {
+    Literal(char),
+    Any,
+    ZeroOrMore,
+    RecursivePrefix,
+    RecursiveSuffix,
+    RecursiveZeroOrMore,
+    Class { negated: bool, ranges: Vec<(char, char)> },
+    Alternates(Vec<Tokens>),
+}
+
+impl Glob {
+    /// Builds a new pattern with default options.
+    pub fn new(glob: &str) -> Result<Glob, Error> {
+        GlobBuilder::new(glob).build()
+    }
+
+    /// Returns a matcher for this pattern.
+    pub fn compile_matcher(&self) -> GlobMatcher {
+        let re =
+            new_regex(&self.re).expect("regex compilation shouldn't fail");
+        GlobMatcher { pat: self.clone(), re: re }
+    }
+
+    /// Returns a strategic matcher.
+    ///
+    /// This isn't exposed because it's not clear whether it's actually
+    /// faster than just running a regex for a *single* pattern. If it
+    /// is faster, then GlobMatcher should do it automatically.
+    #[cfg(test)]
+    fn compile_strategic_matcher(&self) -> GlobStrategic {
+        let strategy = MatchStrategy::new(self);
+        let re =
+            new_regex(&self.re).expect("regex compilation shouldn't fail");
+        GlobStrategic { strategy: strategy, re: re }
+    }
+
+    /// Returns the original glob pattern used to build this pattern.
+    pub fn glob(&self) -> &str {
+        &self.glob
+    }
+
+    /// Returns the regular expression string for this glob.
+    ///
+    /// Note that regular expressions for globs are intended to be matched on
+    /// arbitrary bytes (`&[u8]`) instead of Unicode strings (`&str`). In
+    /// particular, globs are frequently used on file paths, where there is no
+    /// general guarantee that file paths are themselves valid UTF-8. As a
+    /// result, callers will need to ensure that they are using a regex API
+    /// that can match on arbitrary bytes. For example, the
+    /// [`regex`](https://crates.io/regex)
+    /// crate's
+    /// [`Regex`](https://docs.rs/regex/*/regex/struct.Regex.html)
+    /// API is not suitable for this since it matches on `&str`, but its
+    /// [`bytes::Regex`](https://docs.rs/regex/*/regex/bytes/struct.Regex.html)
+    /// API is suitable for this.
+    pub fn regex(&self) -> &str {
+        &self.re
+    }
+
+    /// Returns the pattern as a literal if and only if the pattern must match
+    /// an entire path exactly.
+    ///
+    /// The basic format of these patterns is `{literal}`.
+    fn literal(&self) -> Option<String> {
+        if self.opts.case_insensitive {
+            return None;
+        }
+        let mut lit = String::new();
+        for t in &*self.tokens {
+            match *t {
+                Token::Literal(c) => lit.push(c),
+                _ => return None,
+            }
+        }
+        if lit.is_empty() {
+            None
+        } else {
+            Some(lit)
+        }
+    }
+
+    /// Returns an extension if this pattern matches a file path if and only
+    /// if the file path has the extension returned.
+    ///
+    /// Note that this extension returned differs from the extension that
+    /// std::path::Path::extension returns. Namely, this extension includes
+    /// the '.'. Also, paths like `.rs` are considered to have an extension
+    /// of `.rs`.
+    fn ext(&self) -> Option<String> {
+        if self.opts.case_insensitive {
+            return None;
+        }
+        let start = match self.tokens.get(0) {
+            Some(&Token::RecursivePrefix) => 1,
+            Some(_) => 0,
+            _ => return None,
+        };
+        match self.tokens.get(start) {
+            Some(&Token::ZeroOrMore) => {
+                // If there was no recursive prefix, then we only permit
+                // `*` if `*` can match a `/`. For example, if `*` can't
+                // match `/`, then `*.c` doesn't match `foo/bar.c`.
+                if start == 0 && self.opts.literal_separator {
+                    return None;
+                }
+            }
+            _ => return None,
+        }
+        match self.tokens.get(start + 1) {
+            Some(&Token::Literal('.')) => {}
+            _ => return None,
+        }
+        let mut lit = ".".to_string();
+        for t in self.tokens[start + 2..].iter() {
+            match *t {
+                Token::Literal('.') | Token::Literal('/') => return None,
+                Token::Literal(c) => lit.push(c),
+                _ => return None,
+            }
+        }
+        if lit.is_empty() {
+            None
+        } else {
+            Some(lit)
+        }
+    }
+
+    /// This is like `ext`, but returns an extension even if it isn't sufficient
+    /// to imply a match. Namely, if an extension is returned, then it is
+    /// necessary but not sufficient for a match.
+    fn required_ext(&self) -> Option<String> {
+        if self.opts.case_insensitive {
+            return None;
+        }
+        // We don't care at all about the beginning of this pattern. All we
+        // need to check for is if it ends with a literal of the form `.ext`.
+        let mut ext: Vec<char> = vec![]; // built in reverse
+        for t in self.tokens.iter().rev() {
+            match *t {
+                Token::Literal('/') => return None,
+                Token::Literal(c) => {
+                    ext.push(c);
+                    if c == '.' {
+                        break;
+                    }
+                }
+                _ => return None,
+            }
+        }
+        if ext.last() != Some(&'.') {
+            None
+        } else {
+            ext.reverse();
+            Some(ext.into_iter().collect())
+        }
+    }
+
+    /// Returns a literal prefix of this pattern if the entire pattern matches
+    /// if the literal prefix matches.
+    fn prefix(&self) -> Option<String> {
+        if self.opts.case_insensitive {
+            return None;
+        }
+        let (end, need_sep) = match self.tokens.last() {
+            Some(&Token::ZeroOrMore) => {
+                if self.opts.literal_separator {
+                    // If a trailing `*` can't match a `/`, then we can't
+                    // assume a match of the prefix corresponds to a match
+                    // of the overall pattern. e.g., `foo/*` with
+                    // `literal_separator` enabled matches `foo/bar` but not
+                    // `foo/bar/baz`, even though `foo/bar/baz` has a `foo/`
+                    // literal prefix.
+                    return None;
+                }
+                (self.tokens.len() - 1, false)
+            }
+            Some(&Token::RecursiveSuffix) => (self.tokens.len() - 1, true),
+            _ => (self.tokens.len(), false),
+        };
+        let mut lit = String::new();
+        for t in &self.tokens[0..end] {
+            match *t {
+                Token::Literal(c) => lit.push(c),
+                _ => return None,
+            }
+        }
+        if need_sep {
+            lit.push('/');
+        }
+        if lit.is_empty() {
+            None
+        } else {
+            Some(lit)
+        }
+    }
+
+    /// Returns a literal suffix of this pattern if the entire pattern matches
+    /// if the literal suffix matches.
+    ///
+    /// If a literal suffix is returned and it must match either the entire
+    /// file path or be preceded by a `/`, then also return true. This happens
+    /// with a pattern like `**/foo/bar`. Namely, this pattern matches
+    /// `foo/bar` and `baz/foo/bar`, but not `foofoo/bar`. In this case, the
+    /// suffix returned is `/foo/bar` (but should match the entire path
+    /// `foo/bar`).
+    ///
+    /// When this returns true, the suffix literal is guaranteed to start with
+    /// a `/`.
+    fn suffix(&self) -> Option<(String, bool)> {
+        if self.opts.case_insensitive {
+            return None;
+        }
+        let mut lit = String::new();
+        let (start, entire) = match self.tokens.get(0) {
+            Some(&Token::RecursivePrefix) => {
+                // We only care if this follows a path component if the next
+                // token is a literal.
+                if let Some(&Token::Literal(_)) = self.tokens.get(1) {
+                    lit.push('/');
+                    (1, true)
+                } else {
+                    (1, false)
+                }
+            }
+            _ => (0, false),
+        };
+        let start = match self.tokens.get(start) {
+            Some(&Token::ZeroOrMore) => {
+                // If literal_separator is enabled, then a `*` can't
+                // necessarily match everything, so reporting a suffix match
+                // as a match of the pattern would be a false positive.
+                if self.opts.literal_separator {
+                    return None;
+                }
+                start + 1
+            }
+            _ => start,
+        };
+        for t in &self.tokens[start..] {
+            match *t {
+                Token::Literal(c) => lit.push(c),
+                _ => return None,
+            }
+        }
+        if lit.is_empty() || lit == "/" {
+            None
+        } else {
+            Some((lit, entire))
+        }
+    }
+
+    /// If this pattern only needs to inspect the basename of a file path,
+    /// then the tokens corresponding to only the basename match are returned.
+    ///
+    /// For example, given a pattern of `**/*.foo`, only the tokens
+    /// corresponding to `*.foo` are returned.
+    ///
+    /// Note that this will return None if any match of the basename tokens
+    /// doesn't correspond to a match of the entire pattern. For example, the
+    /// glob `foo` only matches when a file path has a basename of `foo`, but
+    /// doesn't *always* match when a file path has a basename of `foo`. e.g.,
+    /// `foo` doesn't match `abc/foo`.
+    fn basename_tokens(&self) -> Option<&[Token]> {
+        if self.opts.case_insensitive {
+            return None;
+        }
+        let start = match self.tokens.get(0) {
+            Some(&Token::RecursivePrefix) => 1,
+            _ => {
+                // With nothing to gobble up the parent portion of a path,
+                // we can't assume that matching on only the basename is
+                // correct.
+                return None;
+            }
+        };
+        if self.tokens[start..].is_empty() {
+            return None;
+        }
+        for t in &self.tokens[start..] {
+            match *t {
+                Token::Literal('/') => return None,
+                Token::Literal(_) => {} // OK
+                Token::Any | Token::ZeroOrMore => {
+                    if !self.opts.literal_separator {
+                        // In this case, `*` and `?` can match a path
+                        // separator, which means this could reach outside
+                        // the basename.
+                        return None;
+                    }
+                }
+                Token::RecursivePrefix
+                | Token::RecursiveSuffix
+                | Token::RecursiveZeroOrMore => {
+                    return None;
+                }
+                Token::Class { .. } | Token::Alternates(..) => {
+                    // We *could* be a little smarter here, but either one
+                    // of these is going to prevent our literal optimizations
+                    // anyway, so give up.
+                    return None;
+                }
+            }
+        }
+        Some(&self.tokens[start..])
+    }
+
+    /// Returns the pattern as a literal if and only if the pattern exclusively
+    /// matches the basename of a file path *and* is a literal.
+    ///
+    /// The basic format of these patterns is `**/{literal}`, where `{literal}`
+    /// does not contain a path separator.
+    fn basename_literal(&self) -> Option<String> {
+        let tokens = match self.basename_tokens() {
+            None => return None,
+            Some(tokens) => tokens,
+        };
+        let mut lit = String::new();
+        for t in tokens {
+            match *t {
+                Token::Literal(c) => lit.push(c),
+                _ => return None,
+            }
+        }
+        Some(lit)
+    }
+}
+
+impl<'a> GlobBuilder<'a> {
+    /// Create a new builder for the pattern given.
+    ///
+    /// The pattern is not compiled until `build` is called.
+    pub fn new(glob: &'a str) -> GlobBuilder<'a> {
+        GlobBuilder { glob: glob, opts: GlobOptions::default() }
+    }
+
+    /// Parses and builds the pattern.
+    pub fn build(&self) -> Result<Glob, Error> {
+        let mut p = Parser {
+            glob: &self.glob,
+            stack: vec![Tokens::default()],
+            chars: self.glob.chars().peekable(),
+            prev: None,
+            cur: None,
+            opts: &self.opts,
+        };
+        p.parse()?;
+        if p.stack.is_empty() {
+            Err(Error {
+                glob: Some(self.glob.to_string()),
+                kind: ErrorKind::UnopenedAlternates,
+            })
+        } else if p.stack.len() > 1 {
+            Err(Error {
+                glob: Some(self.glob.to_string()),
+                kind: ErrorKind::UnclosedAlternates,
+            })
+        } else {
+            let tokens = p.stack.pop().unwrap();
+            Ok(Glob {
+                glob: self.glob.to_string(),
+                re: tokens.to_regex_with(&self.opts),
+                opts: self.opts,
+                tokens: tokens,
+            })
+        }
+    }
+
+    /// Toggle whether the pattern matches case insensitively or not.
+    ///
+    /// This is disabled by default.
+    pub fn case_insensitive(&mut self, yes: bool) -> &mut GlobBuilder<'a> {
+        self.opts.case_insensitive = yes;
+        self
+    }
+
+    /// Toggle whether a literal `/` is required to match a path separator.
+    ///
+    /// By default this is false: `*` and `?` will match `/`.
+    pub fn literal_separator(&mut self, yes: bool) -> &mut GlobBuilder<'a> {
+        self.opts.literal_separator = yes;
+        self
+    }
+
+    /// When enabled, a back slash (`\`) may be used to escape
+    /// special characters in a glob pattern. Additionally, this will
+    /// prevent `\` from being interpreted as a path separator on all
+    /// platforms.
+    ///
+    /// This is enabled by default on platforms where `\` is not a
+    /// path separator and disabled by default on platforms where `\`
+    /// is a path separator.
+    pub fn backslash_escape(&mut self, yes: bool) -> &mut GlobBuilder<'a> {
+        self.opts.backslash_escape = yes;
+        self
+    }
+}
+
+impl Tokens {
+    /// Convert this pattern to a string that is guaranteed to be a valid
+    /// regular expression and will represent the matching semantics of this
+    /// glob pattern and the options given.
+    fn to_regex_with(&self, options: &GlobOptions) -> String {
+        let mut re = String::new();
+        re.push_str("(?-u)");
+        if options.case_insensitive {
+            re.push_str("(?i)");
+        }
+        re.push('^');
+        // Special case. If the entire glob is just `**`, then it should match
+        // everything.
+        if self.len() == 1 && self[0] == Token::RecursivePrefix {
+            re.push_str(".*");
+            re.push('$');
+            return re;
+        }
+        self.tokens_to_regex(options, &self, &mut re);
+        re.push('$');
+        re
+    }
+
+    fn tokens_to_regex(
+        &self,
+        options: &GlobOptions,
+        tokens: &[Token],
+        re: &mut String,
+    ) {
+        for tok in tokens {
+            match *tok {
+                Token::Literal(c) => {
+                    re.push_str(&char_to_escaped_literal(c));
+                }
+                Token::Any => {
+                    if options.literal_separator {
+                        re.push_str("[^/]");
+                    } else {
+                        re.push_str(".");
+                    }
+                }
+                Token::ZeroOrMore => {
+                    if options.literal_separator {
+                        re.push_str("[^/]*");
+                    } else {
+                        re.push_str(".*");
+                    }
+                }
+                Token::RecursivePrefix => {
+                    re.push_str("(?:/?|.*/)");
+                }
+                Token::RecursiveSuffix => {
+                    re.push_str("/.*");
+                }
+                Token::RecursiveZeroOrMore => {
+                    re.push_str("(?:/|/.*/)");
+                }
+                Token::Class { negated, ref ranges } => {
+                    re.push('[');
+                    if negated {
+                        re.push('^');
+                    }
+                    for r in ranges {
+                        if r.0 == r.1 {
+                            // Not strictly necessary, but nicer to look at.
+                            re.push_str(&char_to_escaped_literal(r.0));
+                        } else {
+                            re.push_str(&char_to_escaped_literal(r.0));
+                            re.push('-');
+                            re.push_str(&char_to_escaped_literal(r.1));
+                        }
+                    }
+                    re.push(']');
+                }
+                Token::Alternates(ref patterns) => {
+                    let mut parts = vec![];
+                    for pat in patterns {
+                        let mut altre = String::new();
+                        self.tokens_to_regex(options, &pat, &mut altre);
+                        if !altre.is_empty() {
+                            parts.push(altre);
+                        }
+                    }
+
+                    // It is possible to have an empty set in which case the
+                    // resulting alternation '()' would be an error.
+                    if !parts.is_empty() {
+                        re.push('(');
+                        re.push_str(&parts.join("|"));
+                        re.push(')');
+                    }
+                }
+            }
+        }
+    }
+}
+
+/// Convert a Unicode scalar value to an escaped string suitable for use as
+/// a literal in a non-Unicode regex.
+fn char_to_escaped_literal(c: char) -> String {
+    bytes_to_escaped_literal(&c.to_string().into_bytes())
+}
+
+/// Converts an arbitrary sequence of bytes to a UTF-8 string. All non-ASCII
+/// code units are converted to their escaped form.
+fn bytes_to_escaped_literal(bs: &[u8]) -> String {
+    let mut s = String::with_capacity(bs.len());
+    for &b in bs {
+        if b <= 0x7F {
+            s.push_str(&regex::escape(&(b as char).to_string()));
+        } else {
+            s.push_str(&format!("\\x{:02x}", b));
+        }
+    }
+    s
+}
+
+struct Parser<'a> {
+    glob: &'a str,
+    stack: Vec<Tokens>,
+    chars: iter::Peekable<str::Chars<'a>>,
+    prev: Option<char>,
+    cur: Option<char>,
+    opts: &'a GlobOptions,
+}
+
+impl<'a> Parser<'a> {
+    fn error(&self, kind: ErrorKind) -> Error {
+        Error { glob: Some(self.glob.to_string()), kind: kind }
+    }
+
+    fn parse(&mut self) -> Result<(), Error> {
+        while let Some(c) = self.bump() {
+            match c {
+                '?' => self.push_token(Token::Any)?,
+                '*' => self.parse_star()?,
+                '[' => self.parse_class()?,
+                '{' => self.push_alternate()?,
+                '}' => self.pop_alternate()?,
+                ',' => self.parse_comma()?,
+                '\\' => self.parse_backslash()?,
+                c => self.push_token(Token::Literal(c))?,
+            }
+        }
+        Ok(())
+    }
+
+    fn push_alternate(&mut self) -> Result<(), Error> {
+        if self.stack.len() > 1 {
+            return Err(self.error(ErrorKind::NestedAlternates));
+        }
+        Ok(self.stack.push(Tokens::default()))
+    }
+
+    fn pop_alternate(&mut self) -> Result<(), Error> {
+        let mut alts = vec![];
+        while self.stack.len() >= 2 {
+            alts.push(self.stack.pop().unwrap());
+        }
+        self.push_token(Token::Alternates(alts))
+    }
+
+    fn push_token(&mut self, tok: Token) -> Result<(), Error> {
+        if let Some(ref mut pat) = self.stack.last_mut() {
+            return Ok(pat.push(tok));
+        }
+        Err(self.error(ErrorKind::UnopenedAlternates))
+    }
+
+    fn pop_token(&mut self) -> Result<Token, Error> {
+        if let Some(ref mut pat) = self.stack.last_mut() {
+            return Ok(pat.pop().unwrap());
+        }
+        Err(self.error(ErrorKind::UnopenedAlternates))
+    }
+
+    fn have_tokens(&self) -> Result<bool, Error> {
+        match self.stack.last() {
+            None => Err(self.error(ErrorKind::UnopenedAlternates)),
+            Some(ref pat) => Ok(!pat.is_empty()),
+        }
+    }
+
+    fn parse_comma(&mut self) -> Result<(), Error> {
+        // If we aren't inside a group alternation, then don't
+        // treat commas specially. Otherwise, we need to start
+        // a new alternate.
+        if self.stack.len() <= 1 {
+            self.push_token(Token::Literal(','))
+        } else {
+            Ok(self.stack.push(Tokens::default()))
+        }
+    }
+
+    fn parse_backslash(&mut self) -> Result<(), Error> {
+        if self.opts.backslash_escape {
+            match self.bump() {
+                None => Err(self.error(ErrorKind::DanglingEscape)),
+                Some(c) => self.push_token(Token::Literal(c)),
+            }
+        } else if is_separator('\\') {
+            // Normalize all patterns to use / as a separator.
+            self.push_token(Token::Literal('/'))
+        } else {
+            self.push_token(Token::Literal('\\'))
+        }
+    }
+
+    fn parse_star(&mut self) -> Result<(), Error> {
+        let prev = self.prev;
+        if self.peek() != Some('*') {
+            self.push_token(Token::ZeroOrMore)?;
+            return Ok(());
+        }
+        assert!(self.bump() == Some('*'));
+        if !self.have_tokens()? {
+            if !self.peek().map_or(true, is_separator) {
+                self.push_token(Token::ZeroOrMore)?;
+                self.push_token(Token::ZeroOrMore)?;
+            } else {
+                self.push_token(Token::RecursivePrefix)?;
+                assert!(self.bump().map_or(true, is_separator));
+            }
+            return Ok(());
+        }
+
+        if !prev.map(is_separator).unwrap_or(false) {
+            if self.stack.len() <= 1
+                || (prev != Some(',') && prev != Some('{'))
+            {
+                self.push_token(Token::ZeroOrMore)?;
+                self.push_token(Token::ZeroOrMore)?;
+                return Ok(());
+            }
+        }
+        let is_suffix = match self.peek() {
+            None => {
+                assert!(self.bump().is_none());
+                true
+            }
+            Some(',') | Some('}') if self.stack.len() >= 2 => true,
+            Some(c) if is_separator(c) => {
+                assert!(self.bump().map(is_separator).unwrap_or(false));
+                false
+            }
+            _ => {
+                self.push_token(Token::ZeroOrMore)?;
+                self.push_token(Token::ZeroOrMore)?;
+                return Ok(());
+            }
+        };
+        match self.pop_token()? {
+            Token::RecursivePrefix => {
+                self.push_token(Token::RecursivePrefix)?;
+            }
+            Token::RecursiveSuffix => {
+                self.push_token(Token::RecursiveSuffix)?;
+            }
+            _ => {
+                if is_suffix {
+                    self.push_token(Token::RecursiveSuffix)?;
+                } else {
+                    self.push_token(Token::RecursiveZeroOrMore)?;
+                }
+            }
+        }
+        Ok(())
+    }
+
+    fn parse_class(&mut self) -> Result<(), Error> {
+        fn add_to_last_range(
+            glob: &str,
+            r: &mut (char, char),
+            add: char,
+        ) -> Result<(), Error> {
+            r.1 = add;
+            if r.1 < r.0 {
+                Err(Error {
+                    glob: Some(glob.to_string()),
+                    kind: ErrorKind::InvalidRange(r.0, r.1),
+                })
+            } else {
+                Ok(())
+            }
+        }
+        let mut ranges = vec![];
+        let negated = match self.chars.peek() {
+            Some(&'!') | Some(&'^') => {
+                let bump = self.bump();
+                assert!(bump == Some('!') || bump == Some('^'));
+                true
+            }
+            _ => false,
+        };
+        let mut first = true;
+        let mut in_range = false;
+        loop {
+            let c = match self.bump() {
+                Some(c) => c,
+                // The only way to successfully break this loop is to observe
+                // a ']'.
+                None => return Err(self.error(ErrorKind::UnclosedClass)),
+            };
+            match c {
+                ']' => {
+                    if first {
+                        ranges.push((']', ']'));
+                    } else {
+                        break;
+                    }
+                }
+                '-' => {
+                    if first {
+                        ranges.push(('-', '-'));
+                    } else if in_range {
+                        // invariant: in_range is only set when there is
+                        // already at least one character seen.
+                        let r = ranges.last_mut().unwrap();
+                        add_to_last_range(&self.glob, r, '-')?;
+                        in_range = false;
+                    } else {
+                        assert!(!ranges.is_empty());
+                        in_range = true;
+                    }
+                }
+                c => {
+                    if in_range {
+                        // invariant: in_range is only set when there is
+                        // already at least one character seen.
+                        add_to_last_range(
+                            &self.glob,
+                            ranges.last_mut().unwrap(),
+                            c,
+                        )?;
+                    } else {
+                        ranges.push((c, c));
+                    }
+                    in_range = false;
+                }
+            }
+            first = false;
+        }
+        if in_range {
+            // Means that the last character in the class was a '-', so add
+            // it as a literal.
+            ranges.push(('-', '-'));
+        }
+        self.push_token(Token::Class { negated: negated, ranges: ranges })
+    }
+
+    fn bump(&mut self) -> Option<char> {
+        self.prev = self.cur;
+        self.cur = self.chars.next();
+        self.cur
+    }
+
+    fn peek(&mut self) -> Option<char> {
+        self.chars.peek().map(|&ch| ch)
+    }
+}
+
+#[cfg(test)]
+fn starts_with(needle: &[u8], haystack: &[u8]) -> bool {
+    needle.len() <= haystack.len() && needle == &haystack[..needle.len()]
+}
+
+#[cfg(test)]
+fn ends_with(needle: &[u8], haystack: &[u8]) -> bool {
+    if needle.len() > haystack.len() {
+        return false;
+    }
+    needle == &haystack[haystack.len() - needle.len()..]
+}
+
+#[cfg(test)]
+mod tests {
+    use super::Token::*;
+    use super::{Glob, GlobBuilder, Token};
+    use crate::{ErrorKind, GlobSetBuilder};
+
+    #[derive(Clone, Copy, Debug, Default)]
+    struct Options {
+        casei: Option<bool>,
+        litsep: Option<bool>,
+        bsesc: Option<bool>,
+    }
+
+    macro_rules! syntax {
+        ($name:ident, $pat:expr, $tokens:expr) => {
+            #[test]
+            fn $name() {
+                let pat = Glob::new($pat).unwrap();
+                assert_eq!($tokens, pat.tokens.0);
+            }
+        };
+    }
+
+    macro_rules! syntaxerr {
+        ($name:ident, $pat:expr, $err:expr) => {
+            #[test]
+            fn $name() {
+                let err = Glob::new($pat).unwrap_err();
+                assert_eq!(&$err, err.kind());
+            }
+        };
+    }
+
+    macro_rules! toregex {
+        ($name:ident, $pat:expr, $re:expr) => {
+            toregex!($name, $pat, $re, Options::default());
+        };
+        ($name:ident, $pat:expr, $re:expr, $options:expr) => {
+            #[test]
+            fn $name() {
+                let mut builder = GlobBuilder::new($pat);
+                if let Some(casei) = $options.casei {
+                    builder.case_insensitive(casei);
+                }
+                if let Some(litsep) = $options.litsep {
+                    builder.literal_separator(litsep);
+                }
+                if let Some(bsesc) = $options.bsesc {
+                    builder.backslash_escape(bsesc);
+                }
+                let pat = builder.build().unwrap();
+                assert_eq!(format!("(?-u){}", $re), pat.regex());
+            }
+        };
+    }
+
+    macro_rules! matches {
+        ($name:ident, $pat:expr, $path:expr) => {
+            matches!($name, $pat, $path, Options::default());
+        };
+        ($name:ident, $pat:expr, $path:expr, $options:expr) => {
+            #[test]
+            fn $name() {
+                let mut builder = GlobBuilder::new($pat);
+                if let Some(casei) = $options.casei {
+                    builder.case_insensitive(casei);
+                }
+                if let Some(litsep) = $options.litsep {
+                    builder.literal_separator(litsep);
+                }
+                if let Some(bsesc) = $options.bsesc {
+                    builder.backslash_escape(bsesc);
+                }
+                let pat = builder.build().unwrap();
+                let matcher = pat.compile_matcher();
+                let strategic = pat.compile_strategic_matcher();
+                let set = GlobSetBuilder::new().add(pat).build().unwrap();
+                assert!(matcher.is_match($path));
+                assert!(strategic.is_match($path));
+                assert!(set.is_match($path));
+            }
+        };
+    }
+
+    macro_rules! nmatches {
+        ($name:ident, $pat:expr, $path:expr) => {
+            nmatches!($name, $pat, $path, Options::default());
+        };
+        ($name:ident, $pat:expr, $path:expr, $options:expr) => {
+            #[test]
+            fn $name() {
+                let mut builder = GlobBuilder::new($pat);
+                if let Some(casei) = $options.casei {
+                    builder.case_insensitive(casei);
+                }
+                if let Some(litsep) = $options.litsep {
+                    builder.literal_separator(litsep);
+                }
+                if let Some(bsesc) = $options.bsesc {
+                    builder.backslash_escape(bsesc);
+                }
+                let pat = builder.build().unwrap();
+                let matcher = pat.compile_matcher();
+                let strategic = pat.compile_strategic_matcher();
+                let set = GlobSetBuilder::new().add(pat).build().unwrap();
+                assert!(!matcher.is_match($path));
+                assert!(!strategic.is_match($path));
+                assert!(!set.is_match($path));
+            }
+        };
+    }
+
+    fn s(string: &str) -> String {
+        string.to_string()
+    }
+
+    fn class(s: char, e: char) -> Token {
+        Class { negated: false, ranges: vec![(s, e)] }
+    }
+
+    fn classn(s: char, e: char) -> Token {
+        Class { negated: true, ranges: vec![(s, e)] }
+    }
+
+    fn rclass(ranges: &[(char, char)]) -> Token {
+        Class { negated: false, ranges: ranges.to_vec() }
+    }
+
+    fn rclassn(ranges: &[(char, char)]) -> Token {
+        Class { negated: true, ranges: ranges.to_vec() }
+    }
+
+    syntax!(literal1, "a", vec![Literal('a')]);
+    syntax!(literal2, "ab", vec![Literal('a'), Literal('b')]);
+    syntax!(any1, "?", vec![Any]);
+    syntax!(any2, "a?b", vec![Literal('a'), Any, Literal('b')]);
+    syntax!(seq1, "*", vec![ZeroOrMore]);
+    syntax!(seq2, "a*b", vec![Literal('a'), ZeroOrMore, Literal('b')]);
+    syntax!(
+        seq3,
+        "*a*b*",
+        vec![ZeroOrMore, Literal('a'), ZeroOrMore, Literal('b'), ZeroOrMore,]
+    );
+    syntax!(rseq1, "**", vec![RecursivePrefix]);
+    syntax!(rseq2, "**/", vec![RecursivePrefix]);
+    syntax!(rseq3, "/**", vec![RecursiveSuffix]);
+    syntax!(rseq4, "/**/", vec![RecursiveZeroOrMore]);
+    syntax!(
+        rseq5,
+        "a/**/b",
+        vec![Literal('a'), RecursiveZeroOrMore, Literal('b'),]
+    );
+    syntax!(cls1, "[a]", vec![class('a', 'a')]);
+    syntax!(cls2, "[!a]", vec![classn('a', 'a')]);
+    syntax!(cls3, "[a-z]", vec![class('a', 'z')]);
+    syntax!(cls4, "[!a-z]", vec![classn('a', 'z')]);
+    syntax!(cls5, "[-]", vec![class('-', '-')]);
+    syntax!(cls6, "[]]", vec![class(']', ']')]);
+    syntax!(cls7, "[*]", vec![class('*', '*')]);
+    syntax!(cls8, "[!!]", vec![classn('!', '!')]);
+    syntax!(cls9, "[a-]", vec![rclass(&[('a', 'a'), ('-', '-')])]);
+    syntax!(cls10, "[-a-z]", vec![rclass(&[('-', '-'), ('a', 'z')])]);
+    syntax!(cls11, "[a-z-]", vec![rclass(&[('a', 'z'), ('-', '-')])]);
+    syntax!(
+        cls12,
+        "[-a-z-]",
+        vec![rclass(&[('-', '-'), ('a', 'z'), ('-', '-')]),]
+    );
+    syntax!(cls13, "[]-z]", vec![class(']', 'z')]);
+    syntax!(cls14, "[--z]", vec![class('-', 'z')]);
+    syntax!(cls15, "[ --]", vec![class(' ', '-')]);
+    syntax!(cls16, "[0-9a-z]", vec![rclass(&[('0', '9'), ('a', 'z')])]);
+    syntax!(cls17, "[a-z0-9]", vec![rclass(&[('a', 'z'), ('0', '9')])]);
+    syntax!(cls18, "[!0-9a-z]", vec![rclassn(&[('0', '9'), ('a', 'z')])]);
+    syntax!(cls19, "[!a-z0-9]", vec![rclassn(&[('a', 'z'), ('0', '9')])]);
+    syntax!(cls20, "[^a]", vec![classn('a', 'a')]);
+    syntax!(cls21, "[^a-z]", vec![classn('a', 'z')]);
+
+    syntaxerr!(err_unclosed1, "[", ErrorKind::UnclosedClass);
+    syntaxerr!(err_unclosed2, "[]", ErrorKind::UnclosedClass);
+    syntaxerr!(err_unclosed3, "[!", ErrorKind::UnclosedClass);
+    syntaxerr!(err_unclosed4, "[!]", ErrorKind::UnclosedClass);
+    syntaxerr!(err_range1, "[z-a]", ErrorKind::InvalidRange('z', 'a'));
+    syntaxerr!(err_range2, "[z--]", ErrorKind::InvalidRange('z', '-'));
+
+    const CASEI: Options =
+        Options { casei: Some(true), litsep: None, bsesc: None };
+    const SLASHLIT: Options =
+        Options { casei: None, litsep: Some(true), bsesc: None };
+    const NOBSESC: Options =
+        Options { casei: None, litsep: None, bsesc: Some(false) };
+    const BSESC: Options =
+        Options { casei: None, litsep: None, bsesc: Some(true) };
+
+    toregex!(re_casei, "a", "(?i)^a$", &CASEI);
+
+    toregex!(re_slash1, "?", r"^[^/]$", SLASHLIT);
+    toregex!(re_slash2, "*", r"^[^/]*$", SLASHLIT);
+
+    toregex!(re1, "a", "^a$");
+    toregex!(re2, "?", "^.$");
+    toregex!(re3, "*", "^.*$");
+    toregex!(re4, "a?", "^a.$");
+    toregex!(re5, "?a", "^.a$");
+    toregex!(re6, "a*", "^a.*$");
+    toregex!(re7, "*a", "^.*a$");
+    toregex!(re8, "[*]", r"^[\*]$");
+    toregex!(re9, "[+]", r"^[\+]$");
+    toregex!(re10, "+", r"^\+$");
+    toregex!(re11, "☃", r"^\xe2\x98\x83$");
+    toregex!(re12, "**", r"^.*$");
+    toregex!(re13, "**/", r"^.*$");
+    toregex!(re14, "**/*", r"^(?:/?|.*/).*$");
+    toregex!(re15, "**/**", r"^.*$");
+    toregex!(re16, "**/**/*", r"^(?:/?|.*/).*$");
+    toregex!(re17, "**/**/**", r"^.*$");
+    toregex!(re18, "**/**/**/*", r"^(?:/?|.*/).*$");
+    toregex!(re19, "a/**", r"^a/.*$");
+    toregex!(re20, "a/**/**", r"^a/.*$");
+    toregex!(re21, "a/**/**/**", r"^a/.*$");
+    toregex!(re22, "a/**/b", r"^a(?:/|/.*/)b$");
+    toregex!(re23, "a/**/**/b", r"^a(?:/|/.*/)b$");
+    toregex!(re24, "a/**/**/**/b", r"^a(?:/|/.*/)b$");
+    toregex!(re25, "**/b", r"^(?:/?|.*/)b$");
+    toregex!(re26, "**/**/b", r"^(?:/?|.*/)b$");
+    toregex!(re27, "**/**/**/b", r"^(?:/?|.*/)b$");
+    toregex!(re28, "a**", r"^a.*.*$");
+    toregex!(re29, "**a", r"^.*.*a$");
+    toregex!(re30, "a**b", r"^a.*.*b$");
+    toregex!(re31, "***", r"^.*.*.*$");
+    toregex!(re32, "/a**", r"^/a.*.*$");
+    toregex!(re33, "/**a", r"^/.*.*a$");
+    toregex!(re34, "/a**b", r"^/a.*.*b$");
+
+    matches!(match1, "a", "a");
+    matches!(match2, "a*b", "a_b");
+    matches!(match3, "a*b*c", "abc");
+    matches!(match4, "a*b*c", "a_b_c");
+    matches!(match5, "a*b*c", "a___b___c");
+    matches!(match6, "abc*abc*abc", "abcabcabcabcabcabcabc");
+    matches!(match7, "a*a*a*a*a*a*a*a*a", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
+    matches!(match8, "a*b[xyz]c*d", "abxcdbxcddd");
+    matches!(match9, "*.rs", ".rs");
+    matches!(match10, "☃", "☃");
+
+    matches!(matchrec1, "some/**/needle.txt", "some/needle.txt");
+    matches!(matchrec2, "some/**/needle.txt", "some/one/needle.txt");
+    matches!(matchrec3, "some/**/needle.txt", "some/one/two/needle.txt");
+    matches!(matchrec4, "some/**/needle.txt", "some/other/needle.txt");
+    matches!(matchrec5, "**", "abcde");
+    matches!(matchrec6, "**", "");
+    matches!(matchrec7, "**", ".asdf");
+    matches!(matchrec8, "**", "/x/.asdf");
+    matches!(matchrec9, "some/**/**/needle.txt", "some/needle.txt");
+    matches!(matchrec10, "some/**/**/needle.txt", "some/one/needle.txt");
+    matches!(matchrec11, "some/**/**/needle.txt", "some/one/two/needle.txt");
+    matches!(matchrec12, "some/**/**/needle.txt", "some/other/needle.txt");
+    matches!(matchrec13, "**/test", "one/two/test");
+    matches!(matchrec14, "**/test", "one/test");
+    matches!(matchrec15, "**/test", "test");
+    matches!(matchrec16, "/**/test", "/one/two/test");
+    matches!(matchrec17, "/**/test", "/one/test");
+    matches!(matchrec18, "/**/test", "/test");
+    matches!(matchrec19, "**/.*", ".abc");
+    matches!(matchrec20, "**/.*", "abc/.abc");
+    matches!(matchrec21, "**/foo/bar", "foo/bar");
+    matches!(matchrec22, ".*/**", ".abc/abc");
+    matches!(matchrec23, "test/**", "test/");
+    matches!(matchrec24, "test/**", "test/one");
+    matches!(matchrec25, "test/**", "test/one/two");
+    matches!(matchrec26, "some/*/needle.txt", "some/one/needle.txt");
+
+    matches!(matchrange1, "a[0-9]b", "a0b");
+    matches!(matchrange2, "a[0-9]b", "a9b");
+    matches!(matchrange3, "a[!0-9]b", "a_b");
+    matches!(matchrange4, "[a-z123]", "1");
+    matches!(matchrange5, "[1a-z23]", "1");
+    matches!(matchrange6, "[123a-z]", "1");
+    matches!(matchrange7, "[abc-]", "-");
+    matches!(matchrange8, "[-abc]", "-");
+    matches!(matchrange9, "[-a-c]", "b");
+    matches!(matchrange10, "[a-c-]", "b");
+    matches!(matchrange11, "[-]", "-");
+    matches!(matchrange12, "a[^0-9]b", "a_b");
+
+    matches!(matchpat1, "*hello.txt", "hello.txt");
+    matches!(matchpat2, "*hello.txt", "gareth_says_hello.txt");
+    matches!(matchpat3, "*hello.txt", "some/path/to/hello.txt");
+    matches!(matchpat4, "*hello.txt", "some\\path\\to\\hello.txt");
+    matches!(matchpat5, "*hello.txt", "/an/absolute/path/to/hello.txt");
+    matches!(matchpat6, "*some/path/to/hello.txt", "some/path/to/hello.txt");
+    matches!(
+        matchpat7,
+        "*some/path/to/hello.txt",
+        "a/bigger/some/path/to/hello.txt"
+    );
+
+    matches!(matchescape, "_[[]_[]]_[?]_[*]_!_", "_[_]_?_*_!_");
+
+    matches!(matchcasei1, "aBcDeFg", "aBcDeFg", CASEI);
+    matches!(matchcasei2, "aBcDeFg", "abcdefg", CASEI);
+    matches!(matchcasei3, "aBcDeFg", "ABCDEFG", CASEI);
+    matches!(matchcasei4, "aBcDeFg", "AbCdEfG", CASEI);
+
+    matches!(matchalt1, "a,b", "a,b");
+    matches!(matchalt2, ",", ",");
+    matches!(matchalt3, "{a,b}", "a");
+    matches!(matchalt4, "{a,b}", "b");
+    matches!(matchalt5, "{**/src/**,foo}", "abc/src/bar");
+    matches!(matchalt6, "{**/src/**,foo}", "foo");
+    matches!(matchalt7, "{[}],foo}", "}");
+    matches!(matchalt8, "{foo}", "foo");
+    matches!(matchalt9, "{}", "");
+    matches!(matchalt10, "{,}", "");
+    matches!(matchalt11, "{*.foo,*.bar,*.wat}", "test.foo");
+    matches!(matchalt12, "{*.foo,*.bar,*.wat}", "test.bar");
+    matches!(matchalt13, "{*.foo,*.bar,*.wat}", "test.wat");
+
+    matches!(matchslash1, "abc/def", "abc/def", SLASHLIT);
+    #[cfg(unix)]
+    nmatches!(matchslash2, "abc?def", "abc/def", SLASHLIT);
+    #[cfg(not(unix))]
+    nmatches!(matchslash2, "abc?def", "abc\\def", SLASHLIT);
+    nmatches!(matchslash3, "abc*def", "abc/def", SLASHLIT);
+    matches!(matchslash4, "abc[/]def", "abc/def", SLASHLIT); // differs
+    #[cfg(unix)]
+    nmatches!(matchslash5, "abc\\def", "abc/def", SLASHLIT);
+    #[cfg(not(unix))]
+    matches!(matchslash5, "abc\\def", "abc/def", SLASHLIT);
+
+    matches!(matchbackslash1, "\\[", "[", BSESC);
+    matches!(matchbackslash2, "\\?", "?", BSESC);
+    matches!(matchbackslash3, "\\*", "*", BSESC);
+    matches!(matchbackslash4, "\\[a-z]", "\\a", NOBSESC);
+    matches!(matchbackslash5, "\\?", "\\a", NOBSESC);
+    matches!(matchbackslash6, "\\*", "\\\\", NOBSESC);
+    #[cfg(unix)]
+    matches!(matchbackslash7, "\\a", "a");
+    #[cfg(not(unix))]
+    matches!(matchbackslash8, "\\a", "/a");
+
+    nmatches!(matchnot1, "a*b*c", "abcd");
+    nmatches!(matchnot2, "abc*abc*abc", "abcabcabcabcabcabcabca");
+    nmatches!(matchnot3, "some/**/needle.txt", "some/other/notthis.txt");
+    nmatches!(matchnot4, "some/**/**/needle.txt", "some/other/notthis.txt");
+    nmatches!(matchnot5, "/**/test", "test");
+    nmatches!(matchnot6, "/**/test", "/one/notthis");
+    nmatches!(matchnot7, "/**/test", "/notthis");
+    nmatches!(matchnot8, "**/.*", "ab.c");
+    nmatches!(matchnot9, "**/.*", "abc/ab.c");
+    nmatches!(matchnot10, ".*/**", "a.bc");
+    nmatches!(matchnot11, ".*/**", "abc/a.bc");
+    nmatches!(matchnot12, "a[0-9]b", "a_b");
+    nmatches!(matchnot13, "a[!0-9]b", "a0b");
+    nmatches!(matchnot14, "a[!0-9]b", "a9b");
+    nmatches!(matchnot15, "[!-]", "-");
+    nmatches!(matchnot16, "*hello.txt", "hello.txt-and-then-some");
+    nmatches!(matchnot17, "*hello.txt", "goodbye.txt");
+    nmatches!(
+        matchnot18,
+        "*some/path/to/hello.txt",
+        "some/path/to/hello.txt-and-then-some"
+    );
+    nmatches!(
+        matchnot19,
+        "*some/path/to/hello.txt",
+        "some/other/path/to/hello.txt"
+    );
+    nmatches!(matchnot20, "a", "foo/a");
+    nmatches!(matchnot21, "./foo", "foo");
+    nmatches!(matchnot22, "**/foo", "foofoo");
+    nmatches!(matchnot23, "**/foo/bar", "foofoo/bar");
+    nmatches!(matchnot24, "/*.c", "mozilla-sha1/sha1.c");
+    nmatches!(matchnot25, "*.c", "mozilla-sha1/sha1.c", SLASHLIT);
+    nmatches!(
+        matchnot26,
+        "**/m4/ltoptions.m4",
+        "csharp/src/packages/repositories.config",
+        SLASHLIT
+    );
+    nmatches!(matchnot27, "a[^0-9]b", "a0b");
+    nmatches!(matchnot28, "a[^0-9]b", "a9b");
+    nmatches!(matchnot29, "[^-]", "-");
+    nmatches!(matchnot30, "some/*/needle.txt", "some/needle.txt");
+    nmatches!(
+        matchrec31,
+        "some/*/needle.txt",
+        "some/one/two/needle.txt",
+        SLASHLIT
+    );
+    nmatches!(
+        matchrec32,
+        "some/*/needle.txt",
+        "some/one/two/three/needle.txt",
+        SLASHLIT
+    );
+    nmatches!(matchrec33, ".*/**", ".abc");
+    nmatches!(matchrec34, "foo/**", "foo");
+
+    macro_rules! extract {
+        ($which:ident, $name:ident, $pat:expr, $expect:expr) => {
+            extract!($which, $name, $pat, $expect, Options::default());
+        };
+        ($which:ident, $name:ident, $pat:expr, $expect:expr, $options:expr) => {
+            #[test]
+            fn $name() {
+                let mut builder = GlobBuilder::new($pat);
+                if let Some(casei) = $options.casei {
+                    builder.case_insensitive(casei);
+                }
+                if let Some(litsep) = $options.litsep {
+                    builder.literal_separator(litsep);
+                }
+                if let Some(bsesc) = $options.bsesc {
+                    builder.backslash_escape(bsesc);
+                }
+                let pat = builder.build().unwrap();
+                assert_eq!($expect, pat.$which());
+            }
+        };
+    }
+
+    macro_rules! literal {
+        ($($tt:tt)*) => { extract!(literal, $($tt)*); }
+    }
+
+    macro_rules! basetokens {
+        ($($tt:tt)*) => { extract!(basename_tokens, $($tt)*); }
+    }
+
+    macro_rules! ext {
+        ($($tt:tt)*) => { extract!(ext, $($tt)*); }
+    }
+
+    macro_rules! required_ext {
+        ($($tt:tt)*) => { extract!(required_ext, $($tt)*); }
+    }
+
+    macro_rules! prefix {
+        ($($tt:tt)*) => { extract!(prefix, $($tt)*); }
+    }
+
+    macro_rules! suffix {
+        ($($tt:tt)*) => { extract!(suffix, $($tt)*); }
+    }
+
+    macro_rules! baseliteral {
+        ($($tt:tt)*) => { extract!(basename_literal, $($tt)*); }
+    }
+
+    literal!(extract_lit1, "foo", Some(s("foo")));
+    literal!(extract_lit2, "foo", None, CASEI);
+    literal!(extract_lit3, "/foo", Some(s("/foo")));
+    literal!(extract_lit4, "/foo/", Some(s("/foo/")));
+    literal!(extract_lit5, "/foo/bar", Some(s("/foo/bar")));
+    literal!(extract_lit6, "*.foo", None);
+    literal!(extract_lit7, "foo/bar", Some(s("foo/bar")));
+    literal!(extract_lit8, "**/foo/bar", None);
+
+    basetokens!(
+        extract_basetoks1,
+        "**/foo",
+        Some(&*vec![Literal('f'), Literal('o'), Literal('o'),])
+    );
+    basetokens!(extract_basetoks2, "**/foo", None, CASEI);
+    basetokens!(
+        extract_basetoks3,
+        "**/foo",
+        Some(&*vec![Literal('f'), Literal('o'), Literal('o'),]),
+        SLASHLIT
+    );
+    basetokens!(extract_basetoks4, "*foo", None, SLASHLIT);
+    basetokens!(extract_basetoks5, "*foo", None);
+    basetokens!(extract_basetoks6, "**/fo*o", None);
+    basetokens!(
+        extract_basetoks7,
+        "**/fo*o",
+        Some(&*vec![Literal('f'), Literal('o'), ZeroOrMore, Literal('o'),]),
+        SLASHLIT
+    );
+
+    ext!(extract_ext1, "**/*.rs", Some(s(".rs")));
+    ext!(extract_ext2, "**/*.rs.bak", None);
+    ext!(extract_ext3, "*.rs", Some(s(".rs")));
+    ext!(extract_ext4, "a*.rs", None);
+    ext!(extract_ext5, "/*.c", None);
+    ext!(extract_ext6, "*.c", None, SLASHLIT);
+    ext!(extract_ext7, "*.c", Some(s(".c")));
+
+    required_ext!(extract_req_ext1, "*.rs", Some(s(".rs")));
+    required_ext!(extract_req_ext2, "/foo/bar/*.rs", Some(s(".rs")));
+    required_ext!(extract_req_ext3, "/foo/bar/*.rs", Some(s(".rs")));
+    required_ext!(extract_req_ext4, "/foo/bar/.rs", Some(s(".rs")));
+    required_ext!(extract_req_ext5, ".rs", Some(s(".rs")));
+    required_ext!(extract_req_ext6, "./rs", None);
+    required_ext!(extract_req_ext7, "foo", None);
+    required_ext!(extract_req_ext8, ".foo/", None);
+    required_ext!(extract_req_ext9, "foo/", None);
+
+    prefix!(extract_prefix1, "/foo", Some(s("/foo")));
+    prefix!(extract_prefix2, "/foo/*", Some(s("/foo/")));
+    prefix!(extract_prefix3, "**/foo", None);
+    prefix!(extract_prefix4, "foo/**", Some(s("foo/")));
+
+    suffix!(extract_suffix1, "**/foo/bar", Some((s("/foo/bar"), true)));
+    suffix!(extract_suffix2, "*/foo/bar", Some((s("/foo/bar"), false)));
+    suffix!(extract_suffix3, "*/foo/bar", None, SLASHLIT);
+    suffix!(extract_suffix4, "foo/bar", Some((s("foo/bar"), false)));
+    suffix!(extract_suffix5, "*.foo", Some((s(".foo"), false)));
+    suffix!(extract_suffix6, "*.foo", None, SLASHLIT);
+    suffix!(extract_suffix7, "**/*_test", Some((s("_test"), false)));
+
+    baseliteral!(extract_baselit1, "**/foo", Some(s("foo")));
+    baseliteral!(extract_baselit2, "foo", None);
+    baseliteral!(extract_baselit3, "*foo", None);
+    baseliteral!(extract_baselit4, "*/foo", None);
+}