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Full Discussion: Can sed perform editing operations ONLY in the matched region?
Top Forums Shell Programming and Scripting Can sed perform editing operations ONLY in the matched region? Post 302299137 by islegmar on Thursday 19th of March 2009 09:35:51 AM
Old 03-19-2009
Can sed perform editing operations ONLY in the matched region?
Hi:

Let's suppose I want to replace all the | by > ONLY when | is between []. Usually (and it works) I would do something like

sed -e 's/\(\[[^|]*\)|\([^[]*\]\)/\1>\2/g'

where I have to "save" some portions of the matched region and use them with the \n metacharacter. I was wondering if I could execute something like that

SelectTheFragmentsThat Match(/\[[^]]*\]) and then execute in those pieces s/|/>/g and left the rest of the line unchanged

So, a lot of times I want to perform only editing operations in the region matched, and I want lo left thje rest of the line unchanged. Is that possible?

Thanks a lot

Isi
 

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LEARN ABOUT DEBIAN

mfontset_lookup

mfontset_lookup(3m17n)						 The m17n Library					    mfontset_lookup(3m17n)

NAME

       mfontset_lookup - Lookup a fontset.

SYNOPSIS

       MPlist * mfontset_lookup (MFontset * fontset, MSymbol script, MSymbol language, MSymbol charset)

DESCRIPTION

       Lookup a fontset. The mfontset_lookup() function lookups fontset and returns a plist that describes the contents of fontset corresponding
       to the specified script, language, and charset.

       If script is Mt, keys of the returned plist are script name symbols for which some fonts are specified and values are NULL.

       If script is a script name symbol, the returned plist is decided by language.

       o If language is Mt, keys of the plist are language name symbols for which some fonts are specified and values are NULL. A key may be Mt
	 which means some fallback fonts are specified for the script.
       o If language is a language name symbol, the plist is a FONT-GROUP for the specified script and language.  FONT-GROUP is a plist whose keys
	 are FLT (FontLayoutTable) name symbols (Mt if no FLT is associated with the font) and values are pointers to MFont.
       o If language is Mnil, the plist is fallback FONT-GROUP for the script.
       If script is Mnil, the returned plist is decided as below.
       o If charset is Mt, keys of the returned plist are charset name symbols for which some fonts are specified and values are NULL.
       o If charset is a charset name symbol, the plist is a FONT-GROUP for the charset.
       o If charset is Mnil, the plist is a fallback FONT-GROUP.
RETURN VALUE

	   It returns a plist describing the contents of a fontset. The plist should be freed by m17n_object_unref().
COPYRIGHT

       Copyright (C) 2001 Information-technology Promotion Agency (IPA)
       Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology (AIST)
       Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License
       <http://www.gnu.org/licenses/fdl.html>.

Version 1.6.2							    12 Jan 2011 					    mfontset_lookup(3m17n)
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