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const minimatch = module.exports = (p, pattern, options = {}) => {
  assertValidPattern(pattern)

  // shortcut: comments match nothing.
  if (!options.nocomment && pattern.charAt(0) === '#') {
    return false
  }

  return new Minimatch(pattern, options).match(p)
}

module.exports = minimatch

const path = require('./lib/path.js')
minimatch.sep = path.sep

const GLOBSTAR = Symbol('globstar **')
minimatch.GLOBSTAR = GLOBSTAR
const expand = require('brace-expansion')

const plTypes = {
  '!': { open: '(?:(?!(?:', close: '))[^/]*?)'},
  '?': { open: '(?:', close: ')?' },
  '+': { open: '(?:', close: ')+' },
  '*': { open: '(?:', close: ')*' },
  '@': { open: '(?:', close: ')' }
}

// any single thing other than /
// don't need to escape / when using new RegExp()
const qmark = '[^/]'

// * => any number of characters
const star = qmark + '*?'

// ** when dots are allowed.  Anything goes, except .. and .
// not (^ or / followed by one or two dots followed by $ or /),
// followed by anything, any number of times.
const twoStarDot = '(?:(?!(?:\\\/|^)(?:\\.{1,2})($|\\\/)).)*?'

// not a ^ or / followed by a dot,
// followed by anything, any number of times.
const twoStarNoDot = '(?:(?!(?:\\\/|^)\\.).)*?'

// "abc" -> { a:true, b:true, c:true }
const charSet = s => s.split('').reduce((set, c) => {
  set[c] = true
  return set
}, {})

// characters that need to be escaped in RegExp.
const reSpecials = charSet('().*{}+?[]^$\\!')

// characters that indicate we have to add the pattern start
const addPatternStartSet = charSet('[.(')

// normalizes slashes.
const slashSplit = /\/+/

minimatch.filter = (pattern, options = {}) =>
  (p, i, list) => minimatch(p, pattern, options)

const ext = (a, b = {}) => {
  const t = {}
  Object.keys(a).forEach(k => t[k] = a[k])
  Object.keys(b).forEach(k => t[k] = b[k])
  return t
}

minimatch.defaults = def => {
  if (!def || typeof def !== 'object' || !Object.keys(def).length) {
    return minimatch
  }

  const orig = minimatch

  const m = (p, pattern, options) => orig(p, pattern, ext(def, options))
  m.Minimatch = class Minimatch extends orig.Minimatch {
    constructor (pattern, options) {
      super(pattern, ext(def, options))
    }
  }
  m.Minimatch.defaults = options => orig.defaults(ext(def, options)).Minimatch
  m.filter = (pattern, options) => orig.filter(pattern, ext(def, options))
  m.defaults = options => orig.defaults(ext(def, options))
  m.makeRe = (pattern, options) => orig.makeRe(pattern, ext(def, options))
  m.braceExpand = (pattern, options) => orig.braceExpand(pattern, ext(def, options))
  m.match = (list, pattern, options) => orig.match(list, pattern, ext(def, options))

  return m
}





// Brace expansion:
// a{b,c}d -> abd acd
// a{b,}c -> abc ac
// a{0..3}d -> a0d a1d a2d a3d
// a{b,c{d,e}f}g -> abg acdfg acefg
// a{b,c}d{e,f}g -> abdeg acdeg abdeg abdfg
//
// Invalid sets are not expanded.
// a{2..}b -> a{2..}b
// a{b}c -> a{b}c
minimatch.braceExpand = (pattern, options) => braceExpand(pattern, options)

const braceExpand = (pattern, options = {}) => {
  assertValidPattern(pattern)

  // Thanks to Yeting Li <https://github.com/yetingli> for
  // improving this regexp to avoid a ReDOS vulnerability.
  if (options.nobrace || !/\{(?:(?!\{).)*\}/.test(pattern)) {
    // shortcut. no need to expand.
    return [pattern]
  }

  return expand(pattern)
}

const MAX_PATTERN_LENGTH = 1024 * 64
const assertValidPattern = pattern => {
  if (typeof pattern !== 'string') {
    throw new TypeError('invalid pattern')
  }

  if (pattern.length > MAX_PATTERN_LENGTH) {
    throw new TypeError('pattern is too long')
  }
}

// parse a component of the expanded set.
// At this point, no pattern may contain "/" in it
// so we're going to return a 2d array, where each entry is the full
// pattern, split on '/', and then turned into a regular expression.
// A regexp is made at the end which joins each array with an
// escaped /, and another full one which joins each regexp with |.
//
// Following the lead of Bash 4.1, note that "**" only has special meaning
// when it is the *only* thing in a path portion.  Otherwise, any series
// of * is equivalent to a single *.  Globstar behavior is enabled by
// default, and can be disabled by setting options.noglobstar.
const SUBPARSE = Symbol('subparse')

minimatch.makeRe = (pattern, options) =>
  new Minimatch(pattern, options || {}).makeRe()

minimatch.match = (list, pattern, options = {}) => {
  const mm = new Minimatch(pattern, options)
  list = list.filter(f => mm.match(f))
  if (mm.options.nonull && !list.length) {
    list.push(pattern)
  }
  return list
}

// replace stuff like \* with *
const globUnescape = s => s.replace(/\\(.)/g, '$1')
const regExpEscape = s => s.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&')

class Minimatch {
  constructor (pattern, options) {
    assertValidPattern(pattern)

    if (!options) options = {}

    this.options = options
    this.set = []
    this.pattern = pattern
    this.windowsPathsNoEscape = !!options.windowsPathsNoEscape ||
      options.allowWindowsEscape === false
    if (this.windowsPathsNoEscape) {
      this.pattern = this.pattern.replace(/\\/g, '/')
    }
    this.regexp = null
    this.negate = false
    this.comment = false
    this.empty = false
    this.partial = !!options.partial

    // make the set of regexps etc.
    this.make()
  }

  debug () {}

  make () {
    const pattern = this.pattern
    const options = this.options

    // empty patterns and comments match nothing.
    if (!options.nocomment && pattern.charAt(0) === '#') {
      this.comment = true
      return
    }
    if (!pattern) {
      this.empty = true
      return
    }

    // step 1: figure out negation, etc.
    this.parseNegate()

    // step 2: expand braces
    let set = this.globSet = this.braceExpand()

    if (options.debug) this.debug = (...args) => console.error(...args)

    this.debug(this.pattern, set)

    // step 3: now we have a set, so turn each one into a series of path-portion
    // matching patterns.
    // These will be regexps, except in the case of "**", which is
    // set to the GLOBSTAR object for globstar behavior,
    // and will not contain any / characters
    set = this.globParts = set.map(s => s.split(slashSplit))

    this.debug(this.pattern, set)

    // glob --> regexps
    set = set.map((s, si, set) => s.map(this.parse, this))

    this.debug(this.pattern, set)

    // filter out everything that didn't compile properly.
    set = set.filter(s => s.indexOf(false) === -1)

    this.debug(this.pattern, set)

    this.set = set
  }

  parseNegate () {
    if (this.options.nonegate) return

    const pattern = this.pattern
    let negate = false
    let negateOffset = 0

    for (let i = 0; i < pattern.length && pattern.charAt(i) === '!'; i++) {
      negate = !negate
      negateOffset++
    }

    if (negateOffset) this.pattern = pattern.slice(negateOffset)
    this.negate = negate
  }

  // set partial to true to test if, for example,
  // "/a/b" matches the start of "/*/b/*/d"
  // Partial means, if you run out of file before you run
  // out of pattern, then that's fine, as long as all
  // the parts match.
  matchOne (file, pattern, partial) {
    var options = this.options

    this.debug('matchOne',
      { 'this': this, file: file, pattern: pattern })

    this.debug('matchOne', file.length, pattern.length)

    for (var fi = 0,
        pi = 0,
        fl = file.length,
        pl = pattern.length
        ; (fi < fl) && (pi < pl)
        ; fi++, pi++) {
      this.debug('matchOne loop')
      var p = pattern[pi]
      var f = file[fi]

      this.debug(pattern, p, f)

      // should be impossible.
      // some invalid regexp stuff in the set.
      /* istanbul ignore if */
      if (p === false) return false

      if (p === GLOBSTAR) {
        this.debug('GLOBSTAR', [pattern, p, f])

        // "**"
        // a/**/b/**/c would match the following:
        // a/b/x/y/z/c
        // a/x/y/z/b/c
        // a/b/x/b/x/c
        // a/b/c
        // To do this, take the rest of the pattern after
        // the **, and see if it would match the file remainder.
        // If so, return success.
        // If not, the ** "swallows" a segment, and try again.
        // This is recursively awful.
        //
        // a/**/b/**/c matching a/b/x/y/z/c
        // - a matches a
        // - doublestar
        //   - matchOne(b/x/y/z/c, b/**/c)
        //     - b matches b
        //     - doublestar
        //       - matchOne(x/y/z/c, c) -> no
        //       - matchOne(y/z/c, c) -> no
        //       - matchOne(z/c, c) -> no
        //       - matchOne(c, c) yes, hit
        var fr = fi
        var pr = pi + 1
        if (pr === pl) {
          this.debug('** at the end')
          // a ** at the end will just swallow the rest.
          // We have found a match.
          // however, it will not swallow /.x, unless
          // options.dot is set.
          // . and .. are *never* matched by **, for explosively
          // exponential reasons.
          for (; fi < fl; fi++) {
            if (file[fi] === '.' || file[fi] === '..' ||
              (!options.dot && file[fi].charAt(0) === '.')) return false
          }
          return true
        }

        // ok, let's see if we can swallow whatever we can.
        while (fr < fl) {
          var swallowee = file[fr]

          this.debug('\nglobstar while', file, fr, pattern, pr, swallowee)

          // XXX remove this slice.  Just pass the start index.
          if (this.matchOne(file.slice(fr), pattern.slice(pr), partial)) {
            this.debug('globstar found match!', fr, fl, swallowee)
            // found a match.
            return true
          } else {
            // can't swallow "." or ".." ever.
            // can only swallow ".foo" when explicitly asked.
            if (swallowee === '.' || swallowee === '..' ||
              (!options.dot && swallowee.charAt(0) === '.')) {
              this.debug('dot detected!', file, fr, pattern, pr)
              break
            }

            // ** swallows a segment, and continue.
            this.debug('globstar swallow a segment, and continue')
            fr++
          }
        }

        // no match was found.
        // However, in partial mode, we can't say this is necessarily over.
        // If there's more *pattern* left, then
        /* istanbul ignore if */
        if (partial) {
          // ran out of file
          this.debug('\n>>> no match, partial?', file, fr, pattern, pr)
          if (fr === fl) return true
        }
        return false
      }

      // something other than **
      // non-magic patterns just have to match exactly
      // patterns with magic have been turned into regexps.
      var hit
      if (typeof p === 'string') {
        hit = f === p
        this.debug('string match', p, f, hit)
      } else {
        hit = f.match(p)
        this.debug('pattern match', p, f, hit)
      }

      if (!hit) return false
    }

    // Note: ending in / means that we'll get a final ""
    // at the end of the pattern.  This can only match a
    // corresponding "" at the end of the file.
    // If the file ends in /, then it can only match a
    // a pattern that ends in /, unless the pattern just
    // doesn't have any more for it. But, a/b/ should *not*
    // match "a/b/*", even though "" matches against the
    // [^/]*? pattern, except in partial mode, where it might
    // simply not be reached yet.
    // However, a/b/ should still satisfy a/*

    // now either we fell off the end of the pattern, or we're done.
    if (fi === fl && pi === pl) {
      // ran out of pattern and filename at the same time.
      // an exact hit!
      return true
    } else if (fi === fl) {
      // ran out of file, but still had pattern left.
      // this is ok if we're doing the match as part of
      // a glob fs traversal.
      return partial
    } else /* istanbul ignore else */ if (pi === pl) {
      // ran out of pattern, still have file left.
      // this is only acceptable if we're on the very last
      // empty segment of a file with a trailing slash.
      // a/* should match a/b/
      return (fi === fl - 1) && (file[fi] === '')
    }

    // should be unreachable.
    /* istanbul ignore next */
    throw new Error('wtf?')
  }

  braceExpand () {
    return braceExpand(this.pattern, this.options)
  }

  parse (pattern, isSub) {
    assertValidPattern(pattern)

    const options = this.options

    // shortcuts
    if (pattern === '**') {
      if (!options.noglobstar)
        return GLOBSTAR
      else
        pattern = '*'
    }
    if (pattern === '') return ''

    let re = ''
    let hasMagic = !!options.nocase
    let escaping = false
    // ? => one single character
    const patternListStack = []
    const negativeLists = []
    let stateChar
    let inClass = false
    let reClassStart = -1
    let classStart = -1
    let cs
    let pl
    let sp
    // . and .. never match anything that doesn't start with .,
    // even when options.dot is set.
    const patternStart = pattern.charAt(0) === '.' ? '' // anything
    // not (start or / followed by . or .. followed by / or end)
    : options.dot ? '(?!(?:^|\\\/)\\.{1,2}(?:$|\\\/))'
    : '(?!\\.)'

    const clearStateChar = () => {
      if (stateChar) {
        // we had some state-tracking character
        // that wasn't consumed by this pass.
        switch (stateChar) {
          case '*':
            re += star
            hasMagic = true
          break
          case '?':
            re += qmark
            hasMagic = true
          break
          default:
            re += '\\' + stateChar
          break
        }
        this.debug('clearStateChar %j %j', stateChar, re)
        stateChar = false
      }
    }

    for (let i = 0, c; (i < pattern.length) && (c = pattern.charAt(i)); i++) {
      this.debug('%s\t%s %s %j', pattern, i, re, c)

      // skip over any that are escaped.
      if (escaping) {
        /* istanbul ignore next - completely not allowed, even escaped. */
        if (c === '/') {
          return false
        }

        if (reSpecials[c]) {
          re += '\\'
        }
        re += c
        escaping = false
        continue
      }

      switch (c) {
        /* istanbul ignore next */
        case '/': {
          // Should already be path-split by now.
          return false
        }

        case '\\':
          clearStateChar()
          escaping = true
        continue

        // the various stateChar values
        // for the "extglob" stuff.
        case '?':
        case '*':
        case '+':
        case '@':
        case '!':
          this.debug('%s\t%s %s %j <-- stateChar', pattern, i, re, c)

          // all of those are literals inside a class, except that
          // the glob [!a] means [^a] in regexp
          if (inClass) {
            this.debug('  in class')
            if (c === '!' && i === classStart + 1) c = '^'
            re += c
            continue
          }

          // if we already have a stateChar, then it means
          // that there was something like ** or +? in there.
          // Handle the stateChar, then proceed with this one.
          this.debug('call clearStateChar %j', stateChar)
          clearStateChar()
          stateChar = c
          // if extglob is disabled, then +(asdf|foo) isn't a thing.
          // just clear the statechar *now*, rather than even diving into
          // the patternList stuff.
          if (options.noext) clearStateChar()
        continue

        case '(':
          if (inClass) {
            re += '('
            continue
          }

          if (!stateChar) {
            re += '\\('
            continue
          }

          patternListStack.push({
            type: stateChar,
            start: i - 1,
            reStart: re.length,
            open: plTypes[stateChar].open,
            close: plTypes[stateChar].close
          })
          // negation is (?:(?!js)[^/]*)
          re += stateChar === '!' ? '(?:(?!(?:' : '(?:'
          this.debug('plType %j %j', stateChar, re)
          stateChar = false
        continue

        case ')':
          if (inClass || !patternListStack.length) {
            re += '\\)'
            continue
          }

          clearStateChar()
          hasMagic = true
          pl = patternListStack.pop()
          // negation is (?:(?!js)[^/]*)
          // The others are (?:<pattern>)<type>
          re += pl.close
          if (pl.type === '!') {
            negativeLists.push(pl)
          }
          pl.reEnd = re.length
        continue

        case '|':
          if (inClass || !patternListStack.length) {
            re += '\\|'
            continue
          }

          clearStateChar()
          re += '|'
        continue

        // these are mostly the same in regexp and glob
        case '[':
          // swallow any state-tracking char before the [
          clearStateChar()

          if (inClass) {
            re += '\\' + c
            continue
          }

          inClass = true
          classStart = i
          reClassStart = re.length
          re += c
        continue

        case ']':
          //  a right bracket shall lose its special
          //  meaning and represent itself in
          //  a bracket expression if it occurs
          //  first in the list.  -- POSIX.2 2.8.3.2
          if (i === classStart + 1 || !inClass) {
            re += '\\' + c
            continue
          }

          // handle the case where we left a class open.
          // "[z-a]" is valid, equivalent to "\[z-a\]"
          // split where the last [ was, make sure we don't have
          // an invalid re. if so, re-walk the contents of the
          // would-be class to re-translate any characters that
          // were passed through as-is
          // TODO: It would probably be faster to determine this
          // without a try/catch and a new RegExp, but it's tricky
          // to do safely.  For now, this is safe and works.
          cs = pattern.substring(classStart + 1, i)
          try {
            RegExp('[' + cs + ']')
          } catch (er) {
            // not a valid class!
            sp = this.parse(cs, SUBPARSE)
            re = re.substring(0, reClassStart) + '\\[' + sp[0] + '\\]'
            hasMagic = hasMagic || sp[1]
            inClass = false
            continue
          }

          // finish up the class.
          hasMagic = true
          inClass = false
          re += c
        continue

        default:
          // swallow any state char that wasn't consumed
          clearStateChar()

          if (reSpecials[c] && !(c === '^' && inClass)) {
            re += '\\'
          }

          re += c
          break

      } // switch
    } // for

    // handle the case where we left a class open.
    // "[abc" is valid, equivalent to "\[abc"
    if (inClass) {
      // split where the last [ was, and escape it
      // this is a huge pita.  We now have to re-walk
      // the contents of the would-be class to re-translate
      // any characters that were passed through as-is
      cs = pattern.slice(classStart + 1)
      sp = this.parse(cs, SUBPARSE)
      re = re.substring(0, reClassStart) + '\\[' + sp[0]
      hasMagic = hasMagic || sp[1]
    }

    // handle the case where we had a +( thing at the *end*
    // of the pattern.
    // each pattern list stack adds 3 chars, and we need to go through
    // and escape any | chars that were passed through as-is for the regexp.
    // Go through and escape them, taking care not to double-escape any
    // | chars that were already escaped.
    for (pl = patternListStack.pop(); pl; pl = patternListStack.pop()) {
      let tail
      tail = re.slice(pl.reStart + pl.open.length)
      this.debug('setting tail', re, pl)
      // maybe some even number of \, then maybe 1 \, followed by a |
      tail = tail.replace(/((?:\\{2}){0,64})(\\?)\|/g, (_, $1, $2) => {
        /* istanbul ignore else - should already be done */
        if (!$2) {
          // the | isn't already escaped, so escape it.
          $2 = '\\'
        }

        // need to escape all those slashes *again*, without escaping the
        // one that we need for escaping the | character.  As it works out,
        // escaping an even number of slashes can be done by simply repeating
        // it exactly after itself.  That's why this trick works.
        //
        // I am sorry that you have to see this.
        return $1 + $1 + $2 + '|'
      })

      this.debug('tail=%j\n   %s', tail, tail, pl, re)
      const t = pl.type === '*' ? star
        : pl.type === '?' ? qmark
        : '\\' + pl.type

      hasMagic = true
      re = re.slice(0, pl.reStart) + t + '\\(' + tail
    }

    // handle trailing things that only matter at the very end.
    clearStateChar()
    if (escaping) {
      // trailing \\
      re += '\\\\'
    }

    // only need to apply the nodot start if the re starts with
    // something that could conceivably capture a dot
    const addPatternStart = addPatternStartSet[re.charAt(0)]

    // Hack to work around lack of negative lookbehind in JS
    // A pattern like: *.!(x).!(y|z) needs to ensure that a name
    // like 'a.xyz.yz' doesn't match.  So, the first negative
    // lookahead, has to look ALL the way ahead, to the end of
    // the pattern.
    for (let n = negativeLists.length - 1; n > -1; n--) {
      const nl = negativeLists[n]

      const nlBefore = re.slice(0, nl.reStart)
      const nlFirst = re.slice(nl.reStart, nl.reEnd - 8)
      let nlAfter = re.slice(nl.reEnd)
      const nlLast = re.slice(nl.reEnd - 8, nl.reEnd) + nlAfter

      // Handle nested stuff like *(*.js|!(*.json)), where open parens
      // mean that we should *not* include the ) in the bit that is considered
      // "after" the negated section.
      const openParensBefore = nlBefore.split('(').length - 1
      let cleanAfter = nlAfter
      for (let i = 0; i < openParensBefore; i++) {
        cleanAfter = cleanAfter.replace(/\)[+*?]?/, '')
      }
      nlAfter = cleanAfter

      const dollar = nlAfter === '' && isSub !== SUBPARSE ? '$' : ''
      re = nlBefore + nlFirst + nlAfter + dollar + nlLast
    }

    // if the re is not "" at this point, then we need to make sure
    // it doesn't match against an empty path part.
    // Otherwise a/* will match a/, which it should not.
    if (re !== '' && hasMagic) {
      re = '(?=.)' + re
    }

    if (addPatternStart) {
      re = patternStart + re
    }

    // parsing just a piece of a larger pattern.
    if (isSub === SUBPARSE) {
      return [re, hasMagic]
    }

    // skip the regexp for non-magical patterns
    // unescape anything in it, though, so that it'll be
    // an exact match against a file etc.
    if (!hasMagic) {
      return globUnescape(pattern)
    }

    const flags = options.nocase ? 'i' : ''
    try {
      return Object.assign(new RegExp('^' + re + '$', flags), {
        _glob: pattern,
        _src: re,
      })
    } catch (er) /* istanbul ignore next - should be impossible */ {
      // If it was an invalid regular expression, then it can't match
      // anything.  This trick looks for a character after the end of
      // the string, which is of course impossible, except in multi-line
      // mode, but it's not a /m regex.
      return new RegExp('$.')
    }
  }

  makeRe () {
    if (this.regexp || this.regexp === false) return this.regexp

    // at this point, this.set is a 2d array of partial
    // pattern strings, or "**".
    //
    // It's better to use .match().  This function shouldn't
    // be used, really, but it's pretty convenient sometimes,
    // when you just want to work with a regex.
    const set = this.set

    if (!set.length) {
      this.regexp = false
      return this.regexp
    }
    const options = this.options

    const twoStar = options.noglobstar ? star
      : options.dot ? twoStarDot
      : twoStarNoDot
    const flags = options.nocase ? 'i' : ''

    // coalesce globstars and regexpify non-globstar patterns
    // if it's the only item, then we just do one twoStar
    // if it's the first, and there are more, prepend (\/|twoStar\/)? to next
    // if it's the last, append (\/twoStar|) to previous
    // if it's in the middle, append (\/|\/twoStar\/) to previous
    // then filter out GLOBSTAR symbols
    let re = set.map(pattern => {
      pattern = pattern.map(p =>
        typeof p === 'string' ? regExpEscape(p)
        : p === GLOBSTAR ? GLOBSTAR
        : p._src
      ).reduce((set, p) => {
        if (!(set[set.length - 1] === GLOBSTAR && p === GLOBSTAR)) {
          set.push(p)
        }
        return set
      }, [])
      pattern.forEach((p, i) => {
        if (p !== GLOBSTAR || pattern[i-1] === GLOBSTAR) {
          return
        }
        if (i === 0) {
          if (pattern.length > 1) {
            pattern[i+1] = '(?:\\\/|' + twoStar + '\\\/)?' + pattern[i+1]
          } else {
            pattern[i] = twoStar
          }
        } else if (i === pattern.length - 1) {
          pattern[i-1] += '(?:\\\/|' + twoStar + ')?'
        } else {
          pattern[i-1] += '(?:\\\/|\\\/' + twoStar + '\\\/)' + pattern[i+1]
          pattern[i+1] = GLOBSTAR
        }
      })
      return pattern.filter(p => p !== GLOBSTAR).join('/')
    }).join('|')

    // must match entire pattern
    // ending in a * or ** will make it less strict.
    re = '^(?:' + re + ')$'

    // can match anything, as long as it's not this.
    if (this.negate) re = '^(?!' + re + ').*$'

    try {
      this.regexp = new RegExp(re, flags)
    } catch (ex) /* istanbul ignore next - should be impossible */ {
      this.regexp = false
    }
    return this.regexp
  }

  match (f, partial = this.partial) {
    this.debug('match', f, this.pattern)
    // short-circuit in the case of busted things.
    // comments, etc.
    if (this.comment) return false
    if (this.empty) return f === ''

    if (f === '/' && partial) return true

    const options = this.options

    // windows: need to use /, not \
    if (path.sep !== '/') {
      f = f.split(path.sep).join('/')
    }

    // treat the test path as a set of pathparts.
    f = f.split(slashSplit)
    this.debug(this.pattern, 'split', f)

    // just ONE of the pattern sets in this.set needs to match
    // in order for it to be valid.  If negating, then just one
    // match means that we have failed.
    // Either way, return on the first hit.

    const set = this.set
    this.debug(this.pattern, 'set', set)

    // Find the basename of the path by looking for the last non-empty segment
    let filename
    for (let i = f.length - 1; i >= 0; i--) {
      filename = f[i]
      if (filename) break
    }

    for (let i = 0; i < set.length; i++) {
      const pattern = set[i]
      let file = f
      if (options.matchBase && pattern.length === 1) {
        file = [filename]
      }
      const hit = this.matchOne(file, pattern, partial)
      if (hit) {
        if (options.flipNegate) return true
        return !this.negate
      }
    }

    // didn't get any hits.  this is success if it's a negative
    // pattern, failure otherwise.
    if (options.flipNegate) return false
    return this.negate
  }

  static defaults (def) {
    return minimatch.defaults(def).Minimatch
  }
}

minimatch.Minimatch = Minimatch