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Diffstat (limited to 'static/unix-v10/man3/regex.3')
| -rw-r--r-- | static/unix-v10/man3/regex.3 | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/static/unix-v10/man3/regex.3 b/static/unix-v10/man3/regex.3 new file mode 100644 index 00000000..d063bca2 --- /dev/null +++ b/static/unix-v10/man3/regex.3 @@ -0,0 +1,66 @@ +.TH REGEX 3 deprecated +.SH NAME +re_comp, re_exec \(mi regular expression handler +.SH SYNOPSIS +.nf +.B char *re_comp(s) +.B char *s; +.PP +.B re_exec(s) +.B char *s; +.fi +.SH DESCRIPTION +.I Re_comp +compiles a regular expression into an internal form suitable for +pattern matching. +.I Re_exec +checks the argument string against the last string passed to +.I re_comp. +.PP +.I Re_comp +returns +.L 0 +if the string +.I s +was compiled successfully; otherwise a string containing an +error message is returned. If +.I re_comp +is passed +.L 0 +or a null string, it returns without changing the currently +compiled regular expression. +.PP +.I Re_exec +returns 1 if the string +.I s +matches the last compiled regular expression, +.L 0 +if the string +.I s +failed to match the last compiled regular expression, and +.L -1 +if the compiled regular expression was invalid (indicating an +internal error). +.PP +The strings passed to both +.I re_comp +and +.I re_exec +may have trailing or embedded newline characters; +they are terminated by nulls. +The regular expressions are otherwise as described for +.IR ed (1). +.SH "SEE ALSO" +.IR ed (1), +.IR expr (1), +.IR regexp (3) +.SH DIAGNOSTICS +.I Re_exec +returns +.L -1 +for an internal error. +.SH BUGS +These routines have been superseded by +the more general routines of +.IR regexp (3). +They have been retained only for compatibility. |