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| author |  Matthew Phillips <matthew@matthewphillips.info>
| 2021-03-16 16:08:11 -0400 |
|---|---|---|
| committer |  GitHub <noreply@github.com>
| 2021-03-16 16:08:11 -0400 |
| commit | 588b086a4dc45e717341e18728fff65a90ddf46c (patch) | |
| tree | fbabfff761add5217963a3d341d68392bea2cccf /src/compiler/utils/full_char_code_at.ts | |
| parent | 174fc1d669fea1cf8be0d873fdb232fd0169abe6 (diff) | |
| download | astro-588b086a4dc45e717341e18728fff65a90ddf46c.tar.gz astro-588b086a4dc45e717341e18728fff65a90ddf46c.tar.zst astro-588b086a4dc45e717341e18728fff65a90ddf46c.zip | |
Bring compiler into Astro (#4)
* include source compiler
* Import from JS
* Conditionally use the instance contents
Co-authored-by: Fred K. Schott <fkschott@gmail.com>
Diffstat (limited to 'src/compiler/utils/full_char_code_at.ts')
| -rw-r--r-- | src/compiler/utils/full_char_code_at.ts | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/compiler/utils/full_char_code_at.ts b/src/compiler/utils/full_char_code_at.ts new file mode 100644 index 000000000..0469b537f --- /dev/null +++ b/src/compiler/utils/full_char_code_at.ts @@ -0,0 +1,10 @@ +// Adapted from https://github.com/acornjs/acorn/blob/6584815dca7440e00de841d1dad152302fdd7ca5/src/tokenize.js +// Reproduced under MIT License https://github.com/acornjs/acorn/blob/master/LICENSE + +export default function full_char_code_at(str: string, i: number): number { + const code = str.charCodeAt(i); + if (code <= 0xd7ff || code >= 0xe000) return code; + + const next = str.charCodeAt(i + 1); + return (code << 10) + next - 0x35fdc00; +} |