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README.md
minimatch
A minimal matching utility.
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 thanfo*o?
), then it will be left as a string rather than converted to a regular expression. -
regexp
Created by themakeRe
method. A single regular expression expressing the entire pattern. This is useful in cases where you wish to use the pattern somewhat likefnmatch(3)
withFNM_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 theregexp
member if necessary, and return it. Will returnfalse
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 theregExpSet
. 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.)
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.