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| author | ruki <waruqi@gmail.com> | 2018-11-08 00:38:48 +0800 |
|---|---|---|
| committer | ruki <waruqi@gmail.com> | 2018-11-07 21:53:09 +0800 |
| commit | 26105034da4fcce7ac883c899d781f016559310d (patch) | |
| tree | c459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/postcss-value-parser/lib/unit.js | |
| parent | 2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff) | |
| download | xmake-docs-26105034da4fcce7ac883c899d781f016559310d.tar.gz xmake-docs-26105034da4fcce7ac883c899d781f016559310d.zip | |
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Diffstat (limited to 'node_modules/postcss-value-parser/lib/unit.js')
| -rw-r--r-- | node_modules/postcss-value-parser/lib/unit.js | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/node_modules/postcss-value-parser/lib/unit.js b/node_modules/postcss-value-parser/lib/unit.js new file mode 100644 index 00000000..06a1f667 --- /dev/null +++ b/node_modules/postcss-value-parser/lib/unit.js @@ -0,0 +1,49 @@ +var minus = "-".charCodeAt(0); +var plus = "+".charCodeAt(0); +var dot = ".".charCodeAt(0); +var exp = "e".charCodeAt(0); +var EXP = "E".charCodeAt(0); + +module.exports = function(value) { + var pos = 0; + var length = value.length; + var dotted = false; + var sciPos = -1; + var containsNumber = false; + var code; + + while (pos < length) { + code = value.charCodeAt(pos); + + if (code >= 48 && code <= 57) { + containsNumber = true; + } else if (code === exp || code === EXP) { + if (sciPos > -1) { + break; + } + sciPos = pos; + } else if (code === dot) { + if (dotted) { + break; + } + dotted = true; + } else if (code === plus || code === minus) { + if (pos !== 0) { + break; + } + } else { + break; + } + + pos += 1; + } + + if (sciPos + 1 === pos) pos--; + + return containsNumber + ? { + number: value.slice(0, pos), + unit: value.slice(pos) + } + : false; +}; |
