Quite frankly, you appear to have some malformed HTML code that you want to clean up and make more human readable.
Moving away from say <ttl>blah..blah</ttl> to a less standard format of {ttl}blah..blah, is in my opinion a mistake.
There are lots of modules that can deal with: <ttl>blah..blah</ttl>. So I opted below to do what I could to "clean things up". I don't think that what you are asking for is a good idea. Of course there could be things that I don't know.
#!/usr/bin/perl -w
use strict;
while( <DATA> )
{
s/<\s*/</g; #compress spaces right after "< xxx"
s/\s*>/>/g; #compress spaces right before "xxx >"
s/(.)</$1\n</g; #add \n before < if not already on new line
print $_;
}
# prints:
# [SOUR]
# Por Gisela Orozco 312.527.8461/ Chicago\
# <line> Por Gisela Orozco
# <ttl>312.527.8461/ Chicago
# </ttl>
__DATA__
[SOUR]
Por Gisela Orozco 312.527.8461/ Chicago\
<line> Por Gisela Orozco< ttl>312.527.8461/ Chicago</ttl >
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