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Diffstat (limited to 'deps/npm/node_modules/ansi-regex/readme.md')
| -rw-r--r-- | deps/npm/node_modules/ansi-regex/readme.md | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/deps/npm/node_modules/ansi-regex/readme.md b/deps/npm/node_modules/ansi-regex/readme.md index 1a4894ec11..6a928edf0f 100644 --- a/deps/npm/node_modules/ansi-regex/readme.md +++ b/deps/npm/node_modules/ansi-regex/readme.md @@ -1,4 +1,4 @@ -# ansi-regex [](https://travis-ci.org/sindresorhus/ansi-regex) +# ansi-regex [](https://travis-ci.org/chalk/ansi-regex) > Regular expression for matching [ANSI escape codes](http://en.wikipedia.org/wiki/ANSI_escape_code) @@ -13,7 +13,7 @@ $ npm install --save ansi-regex ## Usage ```js -var ansiRegex = require('ansi-regex'); +const ansiRegex = require('ansi-regex'); ansiRegex().test('\u001b[4mcake\u001b[0m'); //=> true @@ -25,6 +25,14 @@ ansiRegex().test('cake'); //=> ['\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 |