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#!/bin/csh -f
#
# bibkey - look for a word in the keyword field
# in the references in a BiBTeX file. A restricted form of looktex, in
# that bibkey only looks at "keyword" fields of the entries.
#
# David Kotz (dfk@cs.dartmouth.edu)
#
# usage:
# bibkey keyword file...
#
# Warning: Any characters in keyword that have meanings in regexps
# used by either sed or egrep must be escaped with a \ (the most
# likely occurrence might be \ itself: use \\). Case is ignored in
# the search.
#
# Multiple keywords may be specified with an egrep alternation format:
# eg bibkey 'jones|smith' foo.bib
#
# Actually, any egrep expression is allowed.
# Be sure to quote it properly.
#
set L=~/lib
if ($#argv < 2) then
echo usage: bibkey keyword 'file...'
exit 1
endif
set keyword=`echo "$1" | tr A-Z a-z`
shift
set script=/tmp/bibkey$$
onintr cleanup
# Search for the keyword and get a script for extracting the
# references:
# Cat the files
# Strip comment lines and comments on lines
# Translate to lower case (needs to precede sed and egrep)
# Extract the keyword entries, plus number for lines with @
# Search for the keyword
# Convert this output into a sed script
cat $* \
| sed -e 's/^%.*//' -e 's/\([^\\]\)%.*/\1/' \
| tr A-Z a-z \
| sed -n -f $L/bibkey.sed \
| egrep '^[0-9]*$|'"($keyword)" \
| awk -f $L/bibkey.awk > $script
# Now have sed print out the correct entries:
cat $* | sed -n -f $script
cleanup:
rm -f $script
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