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Top Forums Shell Programming and Scripting How to get exact match sentences? Post 302226786 by vanitham on Tuesday 19th of August 2008 11:51:41 PM
Old 08-20-2008
Quote:
Originally Posted by era
Or do you mean extract lines matching (the query derived from) $word from all the lines in $sent?

Code:
# parse query and make a (slightly generalized) regex out of it
my $regex = $word;
$regex =~ s/\s+/[- \\s]/g;

# print all lines matching $regex
while ($sent =~ m/(.*$regex.*)/go) { print "$1\n"; }

Hi ,

Thank u very much!!!

Its working!!!
 

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RE_COMP(3)						     Linux Programmer's Manual							RE_COMP(3)

NAME
re_comp, re_exec - BSD regex functions SYNOPSIS
#define _REGEX_RE_COMP #include <sys/types.h> #include <regex.h> char *re_comp(char *regex); int re_exec(char *string); DESCRIPTION
re_comp() is used to compile the null-terminated regular expression pointed to by regex. The compiled pattern occupies a static area, the pattern buffer, which is overwritten by subsequent use of re_comp(). If regex is NULL, no operation is performed and the pattern buffer's contents are not altered. re_exec() is used to assess whether the null-terminated string pointed to by string matches the previously compiled regex. RETURN VALUE
re_comp() returns NULL on successful compilation of regex otherwise it returns a pointer to an appropriate error message. re_exec() returns 1 for a successful match, zero for failure. CONFORMING TO
4.3BSD. NOTES
These functions are obsolete; the functions documented in regcomp(3) should be used instead. SEE ALSO
regcomp(3), regex(7), GNU regex manual COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. GNU
1995-07-14 RE_COMP(3)
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