sed multiline substitution if a condition holds Post: 302566338

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Top Forums Shell Programming and Scripting sed multiline substitution if a condition holds Post 302566338 by plsrn on Thursday 20th of October 2011 07:45:59 AM

10-20-2011

Registered User

Ok, now it works. I slighlty modified your final suggestion using the following code. Thanks a lot for your (really impressive) effort in helping me!

Quote:

#!/bin/sh

AWKFILE=`basename $0`_$$.awk

[[ -f $AWFILE ]] && rm $AWKFILE

while IFS=',' read VN AN TN RN
do
cat >> $AWKFILE <<EOFILE
/$VN\.$TN *= *'[^']*'/ {
match (\$0, "(.*)$VN.$TN *= *'([^']*)';(.*)",statements);

${VN}_type=statements[2];

if ( ${VN}_apply != "" ) {
if ( ${VN}_apply == "true" ) {
printf ("%s$VN.$RN = '%s'; %s\n", statements[1], ${VN}_type, statements[3]);
}
else {
printf ("%s$VN.$RN = ''; %s\n", statements[1], statements[3]);
}
}
else {
printf ("%s%s\n", statements[1], statements[3]);
}
}
/$VN\.$AN *= *[^;]*/ {
match (\$0, "(.*)$VN.$AN *= *([^;]*) *;(.*)",statements);

${VN}_apply=statements[2];

if ( ${VN}_type != "" ) {
if ( ${VN}_apply == "true") {
printf ("%s$VN.$RN = '%s'; %s\n", statements[1], ${VN}_type, statements[3]);
}
else {
printf ("%s$VN.$RN = ''; %s\n", statements[1], statements[3]);
}
}
else {
printf ("%s%s\n", statements[1], statements[3]);
}
}
EOFILE

if [ -z "$exclstr" ]
then
exclstr="$VN.$AN|$VN.$TN"
else
exclstr=$exclstr"|$VN.$AN|$VN.$TN"
fi

done < $2

cat >> $AWKFILE <<EOFILE
\$0 !~ /($exclstr) *= *[^;]*/ {
print;
}
EOFILE

gawk -f $AWKFILE $1

rm $AWKFILE

plsrn

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LEARN ABOUT DEBIAN

impressive-gettransitions

IMPRESSIVE-GETTRANSITIONS(1)				      Debian GNU/Linux manual				      IMPRESSIVE-GETTRANSITIONS(1)

NAME

       impressive-gettransitions - Generate Impressive info scripts for LaTeX presentations

SYNOPSIS

       impressive-gettransitions FILE.tex

DESCRIPTION

       A simple script to produce a .info file for use with Impressive, using special comments in a LaTeX/Beamer file. FILE.tex is a file to be
       parsed into .info file. For each /fullpath/blah.tex /fullpath/blah.pdf.info gets produced.

SYNTAX

       In the LaTeX document, impressive-gettransitions counts the pages to determine the PDF slide number of each one.

       The simpler page changes are automatically detected, that is:
	   egin{frame} and:
	   pause

       Other, more elaborated page changes must be noted with a %O comment:
	   item<1-> Foo
	   item<2-> Bar %O

       The transition to apply can be specified in a %O comment:
	   egin{frame} %O SlideUp

OPERATION

       When the .info file corresponding to the LaTeX document already exist, impressive-gettransitions does not clear it, but only adds the
       transitions if finds to it.

       Thus, if you modified your document in a way that requires to completely replace the transitions, manually clear the PageProps section of
       the .info file. This can be done by running the following sed command:
	   sed -i -e "/^PageProps = {/,/^}/d" FILE.info

SEE ALSO

       impressive(1)

AUTHOR

       impressive-gettransitions (originally gettransitions) has been written by Rob Reid.

       This manpage has been originally written by Yaroslav Halchenko <debian@onerussian.com>.

Debian Project							    2012-02-10					      IMPRESSIVE-GETTRANSITIONS(1)