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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/rust/jsparagus-parser/src/unicode.rs | |
parent | Initial commit. (diff) | |
download | firefox-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/unicode.rs')
-rw-r--r-- | third_party/rust/jsparagus-parser/src/unicode.rs | 41 |
1 files changed, 41 insertions, 0 deletions
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) +} |