diff options
Diffstat (limited to 'man3/regex.3')
| -rw-r--r-- | man3/regex.3 | 37 |
1 files changed, 18 insertions, 19 deletions
diff --git a/man3/regex.3 b/man3/regex.3 index fe6a6b3..fb641ef 100644 --- a/man3/regex.3 +++ b/man3/regex.3 @@ -10,7 +10,7 @@ .\" Modified 8 May 1998 by Joseph S. Myers (jsm28@cam.ac.uk) .\" .\" show the synopsis section nicely -.TH regex 3 2023-07-20 "Linux man-pages 6.05.01" +.TH regex 3 2023-10-31 "Linux man-pages 6.7" .SH NAME regcomp, regexec, regerror, regfree \- POSIX regex functions .SH LIBRARY @@ -19,7 +19,7 @@ Standard C library .SH SYNOPSIS .nf .B #include <regex.h> -.PP +.P .BI "int regcomp(regex_t *restrict " preg ", const char *restrict " regex , .BI " int " cflags ); .BI "int regexec(const regex_t *restrict " preg \ @@ -27,21 +27,21 @@ Standard C library .BI " size_t " nmatch ", \ regmatch_t " pmatch "[_Nullable restrict ." nmatch ], .BI " int " eflags ); -.PP +.P .BI "size_t regerror(int " errcode ", const regex_t *_Nullable restrict " preg , .BI " char " errbuf "[_Nullable restrict ." errbuf_size ], .BI " size_t " errbuf_size ); .BI "void regfree(regex_t *" preg ); -.PP +.P .B typedef struct { .B " size_t re_nsub;" .B } regex_t; -.PP +.P .B typedef struct { .B " regoff_t rm_so;" .B " regoff_t rm_eo;" .B } regmatch_t; -.PP +.P .BR typedef " /* ... */ " regoff_t; .fi .SH DESCRIPTION @@ -51,7 +51,7 @@ is used to compile a regular expression into a form that is suitable for subsequent .BR regexec () searches. -.PP +.P On success, the pattern buffer at .I *preg is initialized. @@ -59,7 +59,7 @@ is initialized. is a null-terminated string. The locale must be the same when running .BR regexec (). -.PP +.P After .BR regcomp () succeeds, @@ -74,7 +74,7 @@ passed as to .BR regexec () is sufficient to capture all matches. -.PP +.P .I cflags is the bitwise OR @@ -205,12 +205,12 @@ unused elements of .I pmatch are filled with .BR \-1 s. -.PP +.P Each returned valid .RB (non- \-1 ) match corresponds to the range .RI [ "string + rm_so" , " string + rm_eo" ). -.PP +.P .I regoff_t is a signed integer type capable of storing the largest value that can be stored in either an @@ -225,14 +225,14 @@ is used to turn the error codes that can be returned by both and .BR regexec () into error message strings. -.PP +.P If .I preg isn't a null pointer, .I errcode must be the latest error returned from an operation on .IR preg . -.PP +.P If .I errbuf_size isn't 0, up to @@ -251,12 +251,12 @@ must have been initialized via .SH RETURN VALUE .BR regcomp () returns zero for a successful compilation or an error code for failure. -.PP +.P .BR regexec () returns zero for a successful match or .B REG_NOMATCH for failure. -.PP +.P .BR regerror () returns the size of the buffer required to hold the string. .SH ERRORS @@ -333,12 +333,11 @@ T{ .BR regfree () T} Thread safety MT-Safe .TE -.sp 1 .SH STANDARDS POSIX.1-2008. .SH HISTORY POSIX.1-2001. -.PP +.P Prior to POSIX.1-2008, .I regoff_t was required to be @@ -353,7 +352,7 @@ is only required to be initialized if .B REG_NOSUB wasn't specified, but all known implementations initialize it regardless. .\" glibc, musl, 4.4BSD, illumos -.PP +.P Both .I regex_t and @@ -407,6 +406,6 @@ int main(void) .SH SEE ALSO .BR grep (1), .BR regex (7) -.PP +.P The glibc manual section, .I "Regular Expressions" |