used_definitions

#!/bin/bash

# Usage:
# used_definitions tex_file sty_file
# Print out commands, which are used in the tex_file and are defined in the sty_file

# Parse the arguments
function usage() {
	echo "Usage: $(basename $0) file.tex some.sty"
	echo "prints our the definitions of LaTeX commands defined in some.sty"
	echo "which are actually used in file.tex"
}

if [ $# -lt 1 ]; then
	usage
	exit 1
fi

tex_files=''
sty_files=''

while (( "$#" )); do
	suffix=`echo $1 | grep "\\.[a-z]*$" -o`
	if [ "x"$suffix = "x.tex" ]; then
		tex_files=$tex_files" "$1
	elif [ "x"$suffix = "x.sty" ]; then
		sty_files=$sty_files" "$1
	else
		echo "Don't know what to do with argument \"$1\"."
	fi
	shift
done;

if [ "x$sty_files" == "x" ]; then
	usage
	exit 2
fi


commands=`grep -ho '\\\\[a-zA-Z]\+' $tex_files | sort | uniq`

echo $commands

for i in $commands; do
	grep -h "^[ 	]*\\\\\(renewcommand\|newcommand\|providecommand\|DeclareMathOperator\|DeclareMathSymbol\)\*\?{\\"$i"}" $sty_files
	grep -h "^[ 	]*\\\\def\\"$i"[ #{]" $sty_files
done