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Full Discussion: Repeating groups problem
Top Forums Shell Programming and Scripting Repeating groups problem Post 302253909 by joncoop on Monday 3rd of November 2008 04:42:57 AM
Old 11-03-2008
Repeating groups problem
Hi

I am trying to locate all strings seperated by the string -CR-, the string will have an unknown number of these -CR- strings, I've used the regex:

^(?:(.*?)-CR-)+$


As shown in the test code:

my ($myString)="This is the first line-CR-second line-CR-third line-CR-fourth line-CR-fifth line-CR-";
if ($myString =~ /^(?:(.*?)-CR-)+$/)
{
print "String1 $1 String2 $2 String3 $3 String4 $4 String5 $5\n";
}

However I only ever get the last line "fifth line" which goes to $1, it would seem that only $1 is ever set, and keeps getting overwritten. for example if I replace:

if ($myString =~ /^(?:(.*?)-CR-)+$/)


with:

if ($myString =~ /^(?:(.*?)-CR-){7,}$/)

As I expected I get no output as there only five repeats possible. If I change the 7 to number 5 or less than I again get the same last line found in $1, anyone got any ideas?

Thanks

Jon
 

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LEARN ABOUT HPUX

dce_version

dce_version(8)															    dce_version(8)

NAME

       dce_version - print version information for HP DCE/9000 components

SYNOPSIS

       /opt/dcelocal/etc/dce_version [-uvlG] [-g group_list] [-f version_file] [files ... ]

OPTIONS

       -u	 Print a usage message.

       -v	 Print DCE version.  This is the default behavior.

	-l	 List available groups of interesting files.

       -F	 Print the name of the default version information file.

       -G	 Search files in all groups for what strings.

       -g group_list
		 Search  files	in  groups specified by group_list for what strings.  group_list is a comma or white-space-separated list of group
		 names.  The available group names can be listed with -l.

       -f version_file
		 Specify an alternate version information file to use.	 The  version  information  file  contains  the  DCE  version  string  and
		 group/file lists.  The default version information file is /opt/dcelocal/etc/dce_vinfo.

DESCRIPTION

       By  default,  dce_version prints the version of DCE that is currently installed.  It can also print the what strings for one or more groups
       of ``interesting'' DCE files, list the available group names and descriptions, or search any specified file for	DCE  what  strings.   More
       than one action can be specified in a single invocation of dce_version.

       Filenames to be searched for DCE what strings should be specified after any command line options.

FILES

       /opt/dcelocal/etc/dce_vinfo

SEE ALSO

       what(1)

HP DCE
																    dce_version(8)
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