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Convert text between exact matching patterns to Title case

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Top Forums Shell Programming and Scripting Convert text between exact matching patterns to Title case
# 8  
Old 02-11-2016
And, in those cases, what is supposed to happen? Does capitalization start with the first string and continue until the second string is seen on a subsequent line, or is capitalization only performed between an occurrence of the first string up to the next occurrence of the second string that appears on the same line.

And, on a line like:
Code:
title=">PATTERN1 tokyo city whatever whatever title=">PATTERN1 london PATTERN2

is the output supposed to be:
Code:
title=">PATTERN1 Tokyo City Whatever Whatever Title=">PATTERN1 London PATTERN2

or:
Code:
title=">PATTERN1 tokyo city whatever whatever title=">PATTERN1 London PATTERN2

This User Gave Thanks to Don Cragun For This Post:
martinsmith
# 9  
Old 02-11-2016
Would any of these do it?
Code:
perl -ple '$cl=$_; while(/title=">PATTERN1\s+(.*?)\s+PATTERN2/g){$opt=$mpt=$&; $os=$ms=$1; $ms=~s/\b(\w)/\U$1/g; $mpt=~s/$os/$ms/; $cl=~s/$opt/$mpt/}$_=$cl' patterns.file

Code:
perl -ne '$cl=$_; while(/title=">PATTERN1\s+(.*?)\s+PATTERN2/g){$opt=$mpt=$&; $os=$ms=$1; $ms=~s/\b(\w)/\U$1/g; $mpt=~s/$os/$ms/; $cl=~s/$opt/$mpt/} print $cl' patterns.file

Last edited by Aia; 02-11-2016 at 11:40 PM.. Reason: Add a second one-liner
This User Gave Thanks to Aia For This Post:
martinsmith
# 10  
Old 02-11-2016
Quote:
Originally Posted by Don Cragun
or:
Code:
title=">PATTERN1 tokyo city whatever whatever title=">PATTERN1 London PATTERN2

That's the result i needed. ( with capitalization only performed between an occurrence of the first string up to the next occurrence ) Thank you Don!.
The perl solution from Aia solved the issue.

Code:
PATTERN2 whatever goes to tokyo city ....title=">PATTERN1 tokyo city PATTERN2 whatever whatever whatever title=">PATTERN1 london PATTERN2 whatever whatever whatever title=">PATTERN1 new york PATTERN2 whatever whatever whatever ....

Code:
perl -ple '$cl=$_; while(/title=">PATTERN1\s+(.*?)\s+PATTERN2/g){$opt=$mpt=$&; $os=$ms=$1; $ms=~s/\b(\w)/\U$1/g; $mpt=~s/$os/$ms/} $cl=~s/$opt/$mpt/};$_=$cl' patterns.file

Result:
Code:
PATTERN2 whatever goes to tokyo city ....title=">PATTERN1 Tokyo City PATTERN2 whatever whatever whatever title=">PATTERN1 London PATTERN2 whatever whatever whatever title=">PATTERN1 New York PATTERN2 whatever whatever whatever

Cheers Aia! Smilie

Thanks a lot for everyones help.Smilie
# 11  
Old 02-12-2016
I'm confused.

You said that with the input:
Code:
title=">PATTERN1 tokyo city whatever whatever title=">PATTERN1 london PATTERN2

you want the output:
Code:
title=">PATTERN1 tokyo city whatever whatever title=">PATTERN1 London PATTERN2

and you said that Aia's perl script does exactly what you want. But both of Aia's perl scripts produce the following output from that input:
Code:
title=">PATTERN1 Tokyo City Whatever Whatever Title=">PATTERN1 London PATTERN2

I'm not nearly as good at writing perl scripts as Aia is, but the following awk script seems to do what you have requested for every output you have specified with various sample inputs:
Code:
awk '
BEGIN {	OFF = "PATTERN2"
	ON = "title=\">PATTERN1"
}
{	n = on = 0
	for(i = 1; i <= NF; i++)
		if($i == ON) {
			if(!on)	n++
			on = 1
			start[n] = i + 1
		} else if($i == OFF) {
			if(on) {
				on = 0
				stop[n] = i - 1
			}
		}
	if(on)	n--
	for(i = 1; i <= n; i++)
		for(j = start[i]; j <= stop[i]; j++)
			$j = toupper(substr($j, 1, 1)) substr($j, 2)
}
1' file

As always, if you want to try this on a Solaris/SunOS system, change awk to /usr/xpg4/bin/awk or nawk. I'm guessing this still doesn't really do what you want, but you still haven't given us a complete specification for what happens when the three patterns you showed us in your original post in this thread are not paired as shown in the examples in that post.
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