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					231 lines
				
				7.0 KiB
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											3 years ago
										 
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								# minimatch
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								A minimal matching utility.
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								[](http://travis-ci.org/isaacs/minimatch)
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								This is the matching library used internally by npm.
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								It works by converting glob expressions into JavaScript `RegExp`
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								objects.
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								## Usage
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								```javascript
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								var minimatch = require("minimatch")
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								minimatch("bar.foo", "*.foo") // true!
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								minimatch("bar.foo", "*.bar") // false!
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								minimatch("bar.foo", "*.+(bar|foo)", { debug: true }) // true, and noisy!
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								```
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								## Features
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								Supports these glob features:
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								* Brace Expansion
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								* Extended glob matching
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								* "Globstar" `**` matching
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								See:
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								* `man sh`
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								* `man bash`
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								* `man 3 fnmatch`
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								* `man 5 gitignore`
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								## Minimatch Class
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								Create a minimatch object by instantiating the `minimatch.Minimatch` class.
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								```javascript
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								var Minimatch = require("minimatch").Minimatch
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								var mm = new Minimatch(pattern, options)
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								```
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								### Properties
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								* `pattern` The original pattern the minimatch object represents.
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								* `options` The options supplied to the constructor.
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								* `set` A 2-dimensional array of regexp or string expressions.
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								  Each row in the
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								  array corresponds to a brace-expanded pattern.  Each item in the row
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								  corresponds to a single path-part.  For example, the pattern
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								  `{a,b/c}/d` would expand to a set of patterns like:
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								        [ [ a, d ]
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								        , [ b, c, d ] ]
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								    If a portion of the pattern doesn't have any "magic" in it
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								    (that is, it's something like `"foo"` rather than `fo*o?`), then it
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								    will be left as a string rather than converted to a regular
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								    expression.
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								* `regexp` Created by the `makeRe` method.  A single regular expression
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								  expressing the entire pattern.  This is useful in cases where you wish
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								  to use the pattern somewhat like `fnmatch(3)` with `FNM_PATH` enabled.
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								* `negate` True if the pattern is negated.
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								* `comment` True if the pattern is a comment.
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								* `empty` True if the pattern is `""`.
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								### Methods
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								* `makeRe` Generate the `regexp` member if necessary, and return it.
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								  Will return `false` if the pattern is invalid.
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								* `match(fname)` Return true if the filename matches the pattern, or
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								  false otherwise.
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								* `matchOne(fileArray, patternArray, partial)` Take a `/`-split
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								  filename, and match it against a single row in the `regExpSet`.  This
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								  method is mainly for internal use, but is exposed so that it can be
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								  used by a glob-walker that needs to avoid excessive filesystem calls.
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								All other methods are internal, and will be called as necessary.
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								### minimatch(path, pattern, options)
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								Main export.  Tests a path against the pattern using the options.
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								```javascript
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								var isJS = minimatch(file, "*.js", { matchBase: true })
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								```
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								### minimatch.filter(pattern, options)
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								Returns a function that tests its
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								supplied argument, suitable for use with `Array.filter`.  Example:
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								```javascript
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								var javascripts = fileList.filter(minimatch.filter("*.js", {matchBase: true}))
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								```
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								### minimatch.match(list, pattern, options)
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								Match against the list of
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								files, in the style of fnmatch or glob.  If nothing is matched, and
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								options.nonull is set, then return a list containing the pattern itself.
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								```javascript
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								var javascripts = minimatch.match(fileList, "*.js", {matchBase: true}))
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								```
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								### minimatch.makeRe(pattern, options)
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								Make a regular expression object from the pattern.
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								## Options
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								All options are `false` by default.
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								### debug
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								Dump a ton of stuff to stderr.
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								### nobrace
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								Do not expand `{a,b}` and `{1..3}` brace sets.
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								### noglobstar
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								Disable `**` matching against multiple folder names.
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								### dot
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								Allow patterns to match filenames starting with a period, even if
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								the pattern does not explicitly have a period in that spot.
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								Note that by default, `a/**/b` will **not** match `a/.d/b`, unless `dot`
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								is set.
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								### noext
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								Disable "extglob" style patterns like `+(a|b)`.
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								### nocase
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								Perform a case-insensitive match.
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								### nonull
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								When a match is not found by `minimatch.match`, return a list containing
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								the pattern itself if this option is set.  When not set, an empty list
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								is returned if there are no matches.
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								### matchBase
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								If set, then patterns without slashes will be matched
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								against the basename of the path if it contains slashes.  For example,
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								`a?b` would match the path `/xyz/123/acb`, but not `/xyz/acb/123`.
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								### nocomment
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								Suppress the behavior of treating `#` at the start of a pattern as a
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								comment.
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								### nonegate
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								Suppress the behavior of treating a leading `!` character as negation.
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								### flipNegate
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								Returns from negate expressions the same as if they were not negated.
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								(Ie, true on a hit, false on a miss.)
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								### partial
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								Compare a partial path to a pattern.  As long as the parts of the path that
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								are present are not contradicted by the pattern, it will be treated as a
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								match.  This is useful in applications where you're walking through a
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								folder structure, and don't yet have the full path, but want to ensure that
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								you do not walk down paths that can never be a match.
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								For example,
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								```js
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								minimatch('/a/b', '/a/*/c/d', { partial: true })  // true, might be /a/b/c/d
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								minimatch('/a/b', '/**/d', { partial: true })     // true, might be /a/b/.../d
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								minimatch('/x/y/z', '/a/**/z', { partial: true }) // false, because x !== a
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								```
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								### allowWindowsEscape
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								Windows path separator `\` is by default converted to `/`, which
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								prohibits the usage of `\` as a escape character. This flag skips that
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								behavior and allows using the escape character.
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								## Comparisons to other fnmatch/glob implementations
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								While strict compliance with the existing standards is a worthwhile
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								goal, some discrepancies exist between minimatch and other
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								implementations, and are intentional.
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								If the pattern starts with a `!` character, then it is negated.  Set the
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								`nonegate` flag to suppress this behavior, and treat leading `!`
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								characters normally.  This is perhaps relevant if you wish to start the
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								pattern with a negative extglob pattern like `!(a|B)`.  Multiple `!`
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								characters at the start of a pattern will negate the pattern multiple
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								times.
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								If a pattern starts with `#`, then it is treated as a comment, and
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								will not match anything.  Use `\#` to match a literal `#` at the
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								start of a line, or set the `nocomment` flag to suppress this behavior.
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								The double-star character `**` is supported by default, unless the
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								`noglobstar` flag is set.  This is supported in the manner of bsdglob
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								and bash 4.1, where `**` only has special significance if it is the only
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								thing in a path part.  That is, `a/**/b` will match `a/x/y/b`, but
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								`a/**b` will not.
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								If an escaped pattern has no matches, and the `nonull` flag is set,
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								then minimatch.match returns the pattern as-provided, rather than
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								interpreting the character escapes.  For example,
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								`minimatch.match([], "\\*a\\?")` will return `"\\*a\\?"` rather than
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								`"*a?"`.  This is akin to setting the `nullglob` option in bash, except
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								that it does not resolve escaped pattern characters.
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								If brace expansion is not disabled, then it is performed before any
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								other interpretation of the glob pattern.  Thus, a pattern like
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								`+(a|{b),c)}`, which would not be valid in bash or zsh, is expanded
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								**first** into the set of `+(a|b)` and `+(a|c)`, and those patterns are
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								checked for validity.  Since those two are valid, matching proceeds.
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