split text file

[pc]

hi all,

this is a newb-q:

I have text files that contain somewhere in their middle a start tag
and an end tag.

eg
xxxxxxxxxxzzzzzzzzzzyyyyyyyystartsometexthereendxxxxxxxxxzzzzzzzzzzyyyyyy

I want to trim the file so that it will now only contain

startsometexthereend

Help! What would be the simplest way of accomplishing this?

Any assistance would be much appreciated

TIA

eddiec

 

[usenet]

I have text files that contain somewhere in their middle a start tag
and an end tag.

perldoc -q "How do I find matching/nesting anything?"

 

[Eric J. Roode]

hi all,

this is a newb-q:

I have text files that contain somewhere in their middle a start tag
and an end tag.

eg
xxxxxxxxxxzzzzzzzzzzyyyyyyyystartsometexthereendxxxxxxxxxzzzzzzzzzzyyyyyy

I want to trim the file so that it will now only contain

startsometexthereend

Help! What would be the simplest way of accomplishing this?

A regular expression, probably. One that includes both "start" and "end".

What have you tried so far?

--
Eric
`$=`;$_=\%!;($_)=/(.)/;$==++$|;($.,$/,$,,$\,$",$;,$^,$#,$~,$*,$:,@%)=(
$!=~/(.)(.).(.)(.)(.)(.)..(.)(.)(.)..(.)......(.)/,$"),$=++;$.++;$.++;
$_++;$_++;($_,$\,$,)=($~.$"."$;$/$%[$?]$_$\$,$:$%[$?]",$"&$~,$#,);$,++
;$,++;$^|=$";`$_$\$,$/$:$;$~$*$%[$?]$.$~$*${#}$%[$?]$;$\$"$^$~$*.>&$=`