diff options
| 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/ansi-regex/readme.md | |
| parent | 2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff) | |
| download | xmake-docs-26105034da4fcce7ac883c899d781f016559310d.tar.gz xmake-docs-26105034da4fcce7ac883c899d781f016559310d.zip | |
switch to vuepress
Diffstat (limited to 'node_modules/ansi-regex/readme.md')
| -rw-r--r-- | node_modules/ansi-regex/readme.md | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/node_modules/ansi-regex/readme.md b/node_modules/ansi-regex/readme.md new file mode 100644 index 00000000..6a928edf --- /dev/null +++ b/node_modules/ansi-regex/readme.md @@ -0,0 +1,39 @@ +# ansi-regex [](https://travis-ci.org/chalk/ansi-regex) + +> Regular expression for matching [ANSI escape codes](http://en.wikipedia.org/wiki/ANSI_escape_code) + + +## Install + +``` +$ npm install --save ansi-regex +``` + + +## Usage + +```js +const ansiRegex = require('ansi-regex'); + +ansiRegex().test('\u001b[4mcake\u001b[0m'); +//=> true + +ansiRegex().test('cake'); +//=> false + +'\u001b[4mcake\u001b[0m'.match(ansiRegex()); +//=> ['\u001b[4m', '\u001b[0m'] +``` + +## FAQ + +### Why do you test for codes not in the ECMA 48 standard? + +Some of the codes we run as a test are codes that we acquired finding various lists of non-standard or manufacturer specific codes. If I recall correctly, we test for both standard and non-standard codes, as most of them follow the same or similar format and can be safely matched in strings without the risk of removing actual string content. There are a few non-standard control codes that do not follow the traditional format (i.e. they end in numbers) thus forcing us to exclude them from the test because we cannot reliably match them. + +On the historical side, those ECMA standards were established in the early 90's whereas the VT100, for example, was designed in the mid/late 70's. At that point in time, control codes were still pretty ungoverned and engineers used them for a multitude of things, namely to activate hardware ports that may have been proprietary. Somewhere else you see a similar 'anarchy' of codes is in the x86 architecture for processors; there are a ton of "interrupts" that can mean different things on certain brands of processors, most of which have been phased out. + + +## License + +MIT © [Sindre Sorhus](http://sindresorhus.com) |
