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minimatch#

A minimal matching utility.

Build Status

This is the matching library used internally by npm.

It works by converting glob expressions into JavaScript RegExp
objects.

Usage#

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.

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.

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:

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.

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,

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.