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2019-03-06
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NAME
fnmatch - match filename or pathname
SYNOPSIS
#include <fnmatch.h>
int fnmatch(const char *pattern, const char *string, int flags);
DESCRIPTION
The fnmatch() function checks whether the string argument matches the pattern argument, which is a shell wildcard pattern (see glob(7)).
The flags argument modifies the behavior; it is the bitwise OR of zero or more of the following flags:
| FNM_NOESCAPE | |
| If this flag is set, treat backslash as an ordinary character, instead of an escape character. | |
| FNM_PATHNAME | |
| If this flag is set, match a slash in string only with a slash in pattern and not by an asterisk (*) or a question mark (?) metacharacter, nor by a bracket expression ([]) containing a slash. | |
| FNM_PERIOD | |
| If this flag is set, a leading period in string has to be matched exactly by a period in pattern. A period is considered to be leading if it is the first character in string, or if both FNM_PATHNAME is set and the period immediately follows a slash. | |
| FNM_FILE_NAME | |
| This is a GNU synonym for FNM_PATHNAME. | |
| FNM_LEADING_DIR | |
| If this flag (a GNU extension) is set, the pattern is considered to be matched if it matches an initial segment of string which is followed by a slash. This flag is mainly for the internal use of glibc and is implemented only in certain cases. | |
| FNM_CASEFOLD | |
| If this flag (a GNU extension) is set, the pattern is matched case-insensitively. | |
| FNM_EXTMATCH | |
| If this flag (a GNU extension) is set, extended patterns are supported, as introduced by ’ksh’ and now supported by other shells. The extended format is as follows, with pattern-list being a ’|’ separated list of patterns. | |
| ’?(pattern-list)’ | |
| The pattern matches if zero or one occurrences of any of the patterns in the pattern-list match the input string. | |
| ’*(pattern-list)’ | |
| The pattern matches if zero or more occurrences of any of the patterns in the pattern-list match the input string. | |
| ’+(pattern-list)’ | |
| The pattern matches if one or more occurrences of any of the patterns in the pattern-list match the input string. | |
| ’@(pattern-list)’ | |
| The pattern matches if exactly one occurrence of any of the patterns in the pattern-list match the input string. | |
| ’!(pattern-list)’ | |
| The pattern matches if the input string cannot be matched with any of the patterns in the pattern-list. | |
RETURN VALUE
Zero if string matches pattern, FNM_NOMATCH if there is no match or another nonzero value if there is an error.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
| Thread safety | MT-Safe env locale |
CONFORMING TO
POSIX.1-2001, POSIX.1-2008, POSIX.2. The FNM_FILE_NAME, FNM_LEADING_DIR, and FNM_CASEFOLD flags are GNU extensions.
