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