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Full Discussion: sed script to generate hyperlinks refuses to work
Top Forums Shell Programming and Scripting sed script to generate hyperlinks refuses to work Post 302258048 by markfgilliland on Thursday 13th of November 2008 06:02:00 PM
Old 11-13-2008
sed script to generate hyperlinks refuses to work
Hi All,

I'm new to the forum and not a programmer, but I'm writing a bash script to preprocess definitions of technical terms by inserting hyperlinks pointing to other pages in the glossary before the pages are posted to our server, using a standard naming convention for the pages. The script searches through a set of text (all the definitions) and insert hyperlinks when it finds specific terms (the terms). The script also generates a cleaned-up version of the terms for the hyperlink, getting rid of uppercase, non-valid characters for filenames, etc. So the idea is to replace the term in the original file by the term plus a hyperlink to the page for that term.

The individual comands used to work (I swear) when I first wrote it, but in refining it I've busted it and struggled for two days now trying to get it to work, including step by step, or as a script...can't figure out how I've broken it. I hoping someone wil spot the error, grateful for any help you can provide, it doesn't have to be efficient, just work.

Symptom is only the last hyperlink in the terms in included, instead of all of them

Here's the (non-working) script as is, mainly just search and replace, grateful for any help you can provide....

#!/bin/bash
sh --version
debug=":"
debug="echo"
SEQ=/usr/bin/seq
#tr -s '\n' < definitions.txt > temp1.txt
#tr -s ' ' < temp1.txt > definitions.txt
sed -i "s/\./yyyyy/g" definitions.txt
sed -i "s/(/ ( /g" definitions.txt
sed -i "s/\//zzzzz/g" definitions.txt
#sed -i "s/(/( /g" definitions.txt
sed -i "s/,/ , /g" definitions.txt
sed -i "s/)/ ) /g" definitions.txt
tr ' ' '_' < definitions.txt > definitions_underscore
tr -s '\n' < terms > temp2
tr -s ' ' < temp2 > terms
tr A-Z a-z < terms > terms_lowercase
tr -d ' =;:`"<>,./?!@#$%^&(){}[]+~-' < terms_lowercase > terms_url
sed -i "s/\./yyyyy/g" terms
sed -i "s/\//zzzzz/g" terms
tr ' ' '_' < terms > terms_search
a=( $( cat terms_search ) )
b=( $( cat terms_url ) )
$debug " Number of elements in array is $(( ${#a[@]} ))"
for i in $($SEQ 0 $((${#a[@]} - 1)))
do
echo ${a[$i]}
echo ${b[$i]}
sed -i "s/_"${a[$i]}"_/\_\<a\_href="\"${b[$i]}"\.php\"\>"${a[$i]}"\<\/a\> /g" definitions_underscore
done
sed -i "s/__(__/(/g" definitions_underscore.txt
sed -i "s/__,/,/g" definitions_underscore.txt
sed -i "s/__)/)/g" definitions_underscore.txt
sed -i "s/yyyyy/\./g" definitions_underscore.txt
sed -i "s/zzzzz/\//g" definitions_underscore.txt
sed -i "s/yyyyy/\./g" terms.txt
sed -i "s/_\./\./g" terms.txt
sed -i "s/ \./\./g" terms.txt
tr '_' ' ' < definitions_underscore > definitions_linked.html
 

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LEARN ABOUT REDHAT

dos2unix

dos2unix(1)						      General Commands Manual						       dos2unix(1)

NAME

       dos2unix - DOS/MAC to UNIX text file format converter

SYNOPSYS

       dos2unix [options] [-c convmode] [-o file ...] [-n infile outfile ...]

       Options:

       [-hkqV] [--help] [--keepdate] [--quiet] [--version]

DESCRIPTION

       This manual page documents dos2unix, the program that converts plain text files in DOS/MAC format to UNIX format.

OPTIONS

       The following options are available:

       -h --help
	      Print online help.

       -k --keepdate
	      Keep the date stamp of output file same as input file.

       -q --quiet
	      Quiet mode. Suppress all warning and messages.

       -V --version
	      Prints version information.

       -c --convmode convmode
	      Sets conversion mode. Simulates dos2unix under SunOS.

       -o --oldfile file ...
	      Old file mode. Convert the file and write output to it. The program default to run in this mode. Wildcard names may be used.

       -n --newfile infile outfile ...
	      New  file  mode.	Convert the infile and write output to outfile. File names must be given in pairs and wildcard names should NOT be
	      used or you WILL lost your files.

EXAMPLES

       Get input from stdin and write output to stdout.

	      dos2unix

       Convert and replace a.txt. Convert and replace b.txt.

	      dos2unix a.txt b.txt

	      dos2unix -o a.txt b.txt

       Convert and replace a.txt in ASCII conversion mode.  Convert and replace b.txt in ISO conversion mode.  Convert	c.txt  from  Mac  to  Unix
       ascii format.

	      dos2unix a.txt -c iso b.txt

	      dos2unix -c ascii a.txt -c iso b.txt

	      dos2unix -c mac a.txt b.txt

       Convert and replace a.txt while keeping original date stamp.

	      dos2unix -k a.txt

	      dos2unix -k -o a.txt

       Convert a.txt and write to e.txt.

	      dos2unix -n a.txt e.txt

       Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt.

	      dos2unix -k -n a.txt e.txt

       Convert and replace a.txt. Convert b.txt and write to e.txt.

	      dos2unix a.txt -n b.txt e.txt

	      dos2unix -o a.txt -n b.txt e.txt

       Convert c.txt and write to e.txt. Convert and replace a.txt.  Convert and replace b.txt. Convert d.txt and write to f.txt.

	      dos2unix -n c.txt e.txt -o a.txt b.txt -n d.txt f.txt

DIAGNOSTICS

BUGS

       The program does not work properly under MSDOS in stdio processing mode.  If you know why is that so, please tell me.

AUTHORS

       Benjamin Lin - <blin@socs.uts.edu.au>

       Bernd Johannes Wuebben (mac2unix mode) <wuebben@kde.org>

MISCELLANY

       Tested environment:

	      Linux 1.2.0 with GNU C 2.5.8

	      SunOS 4.1.3 with GNU C 2.6.3

	      MS-DOS 6.20 with Borland C++ 4.02

       Suggestions and bug reports are welcome.

SEE ALSO

       unix2dos(1) mac2unix(1)

1995.03.31							   dos2unix v3.0						       dos2unix(1)
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