NAME
fnmatch() — match filename patterns
SYNOPSIS
#include <fnmatch.h>
int fnmatch(const char *pattern, const char *string, int flags);
DESCRIPTION
fnmatch()
performs pattern matching as described in
regexp(5)
under
PATTERN MATCHING NOTATION.
By default, the rule qualifications for filename expansion do not apply;
i.e., periods (dots) and slashes are matched as ordinary characters.
This default behavior can be modified by using the flags described below.
The
flag
argument modifies the interpretation of
pattern
and
string.
If
FNM_PATHNAME,
which is defined in
<fnmatch.h>,
is set in
flag,
a slash character in
string
must be explicitly matched by a slash in
pattern;
it cannot be matched by either the asterisk
or question mark special characters or by a bracket expression.
If
FNM_PERIOD
is set in
flag,
a leading period
(.)
must be explicitly matched.
It will not be matched by a bracket expression,
question mark or asterisk.
By default, a period is leading if it is the first character in
string.
If
FNM_PATHNAME
is set in
flag,
a period is leading if it is the first character in
string
or immediately follows a slash.
If
FNM_NOESCAPE
is not set in
flag,
a backslash character
(\)
in
pattern
followed by any other character matches that second character in
string.
In particular,
\\
matches a backslash in
string.
If
FNM_NOESCAPE
is set, a backslash character is treated as an ordinary character.
If
flag
is zero,
the slash character and the period are treated as regular characters.
If
flag
has any other value, the result is undefined.
RETURN VALUE
If
string
matches the pattern specified by
pattern,
fnmatch()
returns zero.
Otherwise,
fnmatch()
returns non-zero.
EXAMPLE
The following excerpt uses
fnmatch()
to check each file in a directory against the pattern
*.c:
pattern = "*.c";
while(dp = readdir(dirp)){
if((fnmatch(pattern, dp->d_name,0)) == 0){
/* do processing for match */
...
}
}
AUTHOR
fnmatch()
was developed by OSF and HP.
STANDARDS CONFORMANCE
fnmatch(): XPG4, POSIX.2
Printable version
