Unix and Linux Discussions Tagged with regular |
|
Thread / Thread Starter |
Last Post |
Replies |
Views |
Forum |
|
|
|
1 |
2,085 |
UNIX for Beginners Questions & Answers |
|
|
|
6 |
2,441 |
UNIX for Beginners Questions & Answers |
|
|
|
7 |
3,680 |
Shell Programming and Scripting |
|
|
|
5 |
3,093 |
Shell Programming and Scripting |
|
|
|
12 |
4,492 |
Shell Programming and Scripting |
|
|
|
9 |
7,704 |
Shell Programming and Scripting |
|
|
|
8 |
8,475 |
Programming |
|
|
|
3 |
2,094 |
Shell Programming and Scripting |
|
|
|
3 |
7,198 |
Shell Programming and Scripting |
|
|
|
0 |
1,885 |
UNIX and Linux RSS News |
|
|
|
2 |
1,526 |
Shell Programming and Scripting |
|
|
|
2 |
5,824 |
Shell Programming and Scripting |
|
|
|
6 |
2,223 |
Shell Programming and Scripting |
|
|
|
2 |
1,831 |
Shell Programming and Scripting |
|
|
|
6 |
2,606 |
Shell Programming and Scripting |
|
|
|
9 |
31,617 |
Shell Programming and Scripting |
|
|
|
3 |
2,572 |
Shell Programming and Scripting |
|
|
|
7 |
4,722 |
Shell Programming and Scripting |
|
|
|
2 |
2,112 |
Shell Programming and Scripting |
|
|
|
1 |
11,056 |
UNIX for Dummies Questions & Answers |
|
|
|
3 |
3,489 |
Shell Programming and Scripting |
|
|
|
3 |
5,983 |
UNIX for Advanced & Expert Users |
|
|
|
14 |
5,069 |
UNIX for Dummies Questions & Answers |
|
|
|
6 |
3,285 |
UNIX for Dummies Questions & Answers |
|
|
|
1 |
1,881 |
Shell Programming and Scripting |
|
|
|
5 |
2,025 |
Shell Programming and Scripting |
|
|
|
8 |
12,204 |
UNIX for Dummies Questions & Answers |
|
|
|
12 |
4,447 |
UNIX for Dummies Questions & Answers |
|
|
|
3 |
3,460 |
Shell Programming and Scripting |
|
|
|
1 |
1,395 |
Shell Programming and Scripting |
|
|
|
1 |
1,693 |
UNIX for Dummies Questions & Answers |
|
|
|
4 |
6,208 |
Shell Programming and Scripting |
|
|
|
3 |
5,729 |
UNIX for Advanced & Expert Users |
|
|
|
9 |
14,431 |
UNIX for Dummies Questions & Answers |
|
|
|
1 |
3,521 |
Shell Programming and Scripting |
|
|
|
4 |
5,236 |
UNIX for Dummies Questions & Answers |
|
|
|
3 |
2,406 |
UNIX for Advanced & Expert Users |
|
|
|
6 |
5,601 |
Shell Programming and Scripting |
|
|
|
4 |
5,417 |
UNIX for Dummies Questions & Answers |
|
|
|
3 |
4,712 |
UNIX for Dummies Questions & Answers |
regex(3) Library Functions Manual regex(3)
Name
re_comp, re_exec - regular expression handler
Syntax
char *re_comp(s)
char *s;
re_exec(s)
char *s;
Description
The subroutine compiles a string into an internal form suitable for pattern matching. The subroutine checks the argument string against
the last string passed to
The subroutine returns 0 if the string s was compiled successfully; otherwise a string containing an error message is returned. If is
passed 0 or a null string, it returns without changing the currently compiled regular expression.
The subroutine returns 1 if the string s matches the last compiled regular expression, 0 if the string s failed to match the last compiled
regular expression, and -1 if the compiled regular expression was invalid (indicating an internal error).
The strings passed to both and may have trailing or embedded newline characters; they are terminated by nulls. The regular expressions
recognized are described in the manual entry for given the above difference.
Diagnostics
The subroutine returns -1 for an internal error.
The subroutine returns one of the following strings if an error occurs:
No previous regular expression
Regular expression too long
unmatched (
missing ]
too many () pairs
unmatched )
See Also
ed(1), ex(1), egrep(1), fgrep(1), grep(1)
regex(3)