var ErrBadPattern … // Match reports whether name matches the shell pattern. // The pattern syntax is: // // pattern: // { term } // term: // '*' matches any sequence of non-/ characters // '?' matches any single non-/ character // '[' [ '^' ] { character-range } ']' // character class (must be non-empty) // c matches character c (c != '*', '?', '\\', '[') // '\\' c matches character c // // character-range: // c matches character c (c != '\\', '-', ']') // '\\' c matches character c // lo '-' hi matches character c for lo <= c <= hi // // Match requires pattern to match all of name, not just a substring. // The only possible returned error is [ErrBadPattern], when pattern // is malformed. func Match(pattern, name string) (matched bool, err error) { … } // scanChunk gets the next segment of pattern, which is a non-star string // possibly preceded by a star. func scanChunk(pattern string) (star bool, chunk, rest string) { … } // matchChunk checks whether chunk matches the beginning of s. // If so, it returns the remainder of s (after the match). // Chunk is all single-character operators: literals, char classes, and ?. func matchChunk(chunk, s string) (rest string, ok bool, err error) { … } // getEsc gets a possibly-escaped character from chunk, for a character class. func getEsc(chunk string) (r rune, nchunk string, err error) { … }