xref: /386bsd/usr/src/lib/libc/gen/fnmatch.3 (revision a2142627)
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34.\"     @(#)fnmatch.3	5.4 (Berkeley) 6/28/92
35.\"
36.Dd June 28, 1992
37.Dt FNMATCH 3
38.Os
39.Sh NAME
40.Nm fnmatch
41.Nd match filename or pathname
42.Sh SYNOPSIS
43.Fd #include <fnmatch.h>
44.Ft int
45.Fn fnmatch "const char *pattern" "const char *string" "int flags"
46.Sh DESCRIPTION
47The
48.Fn fnmatch
49function
50matches patterns according to the rules used by the shell.
51It checks the string specified by the
52.Fa string
53argument to see if it matches the pattern specified by the
54.Fa pattern
55argument.
56.Pp
57The
58.Fa flags
59argument modifies the interpretation of
60.Fa pattern
61and
62.Fa string .
63The value of
64.Fa flags
65is the bitwise inclusive
66.Tn OR
67of any of the following
68constants, which are defined in the include file
69.Pa fnmatch.h .
70.Bl -tag -width FNM_PATHNAME
71.It Dv FNM_NOESCAPE
72Normally, every occurrence of a backslash
73.Pq Ql \e
74followed by a character in
75.Fa pattern
76is replaced by that character.
77This is done to negate any special meaning for the character.
78If the
79.Dv FNM_NOESCAPE
80flag is set, a backslash character is treated as an ordinary character.
81.It Dv FNM_PATHNAME
82Slash characters in
83.Fa string
84must be explicitly matched by slashes in
85.Fa pattern .
86If this flag is not set, then slashes are treated as regular characters.
87.It Dv FNM_PERIOD
88Leading periods in strings match periods in patterns.
89The definition of ``leading'' is related to the specification of
90.Dv FNM_PATHNAME.
91A period is always ``leading'' if it is the first character in
92.Ar string .
93Additionally, if
94.Dv FNM_PATHNAME
95is set,
96a period is ``leading'' if it immediately follows a slash.
97.Em "This flag is not currently implemented."
98.El
99.Sh RETURN VALUES
100The
101.Fn fnmatch
102function returns zero if
103.Fa string
104matches the pattern specified by
105.Fa pattern ,
106otherwise, it returns the value
107.Dv FNM_NOMATCH .
108.Sh SEE ALSO
109.Xr sh 1 ,
110.Xr glob 3 ,
111.Xr wordexp 3 ,
112.Xr regexp 3
113.Sh HISTORY
114The
115.Fn fnmatch
116function is
117.Ud .
118.Sh BUGS
119Quotes and slashes in range patterns are not handled correctly by
120this implementation.
121.Pp
122The
123.Dv FNM_PERIOD
124flag is not implemented.
125.Pp
126The pattern
127.Ql *
128matches the empty string, even if
129.Dv FNM_PATHNAME
130is specified.
131