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@deftypefn Replacement int fnmatch (const char *@var{pattern}, @
  const char *@var{string}, int @var{flags})

Matches @var{string} against @var{pattern}, returning zero if it
matches, @code{FNM_NOMATCH} if not.  @var{pattern} may contain the
wildcards @code{?} to match any one character, @code{*} to match any
zero or more characters, or a set of alternate characters in square
brackets, like @samp{[a-gt8]}, which match one character (@code{a}
through @code{g}, or @code{t}, or @code{8}, in this example) if that one
character is in the set.  A set may be inverted (i.e., match anything
except what's in the set) by giving @code{^} or @code{!} as the first
character in the set.  To include those characters in the set, list them
as anything other than the first character of the set.  To include a
dash in the set, list it last in the set.  A backslash character makes
the following character not special, so for example you could match
against a literal asterisk with @samp{\*}.  To match a literal
backslash, use @samp{\\}.

@code{flags} controls various aspects of the matching process, and is a
boolean OR of zero or more of the following values (defined in
@code{<fnmatch.h>}):

@table @code

@item FNM_PATHNAME
@itemx FNM_FILE_NAME
@var{string} is assumed to be a path name.  No wildcard will ever match
@code{/}.

@item FNM_NOESCAPE
Do not interpret backslashes as quoting the following special character.

@item FNM_PERIOD
A leading period (at the beginning of @var{string}, or if
@code{FNM_PATHNAME} after a slash) is not matched by @code{*} or
@code{?} but must be matched explicitly.

@item FNM_LEADING_DIR
Means that @var{string} also matches @var{pattern} if some initial part
of @var{string} matches, and is followed by @code{/} and zero or more
characters.  For example, @samp{foo*} would match either @samp{foobar}
or @samp{foobar/grill}.

@item FNM_CASEFOLD
Ignores case when performing the comparison.

@end table

@end deftypefn