#!/bin/sh

# A POSIX variable

OPTIND=1 # Reset in case getopts has been used previously in the shell.

# Initialize our own variables:

MODULE=0

OUT_FILE=0

while getopts "h?m:o:" opt; do

case "$opt" in

h|\?)

echo "Usage: `basename $0` -m MODULE -o OUTPUT-FILE"

exit 0

;;

m) MODULE=$OPTARG

;;

o) OUT_FILE=$OPTARG

;;

esac

done

shift $((OPTIND-1))

[ "$1" = "--" ] && shift

IN_FILE=$1

AUX_FILE=cut.tex

shift

# echo "MODULE=$MODULE, OUT_FILE='$OUT_FILE', IN_FILE='$IN_FILE', Leftovers: $@"

# End of command args parsing

# Save to BEGIN_DOC_LINE_NUM the line number of \begin{document} in the original doc-methods-main.tex

BEGIN_DOC_LINE_NUM=$(grep -n -m 1 \begin{document} ${IN_FILE} | sed -n 's/^\([0-9]*\)[:].*/\1/p')

# save into final.tex the beginning of the document up to \begin{document} inclusively

head -n ${BEGIN_DOC_LINE_NUM} ${IN_FILE} > ${OUT_FILE}

# Append one more line

echo "" >> ${OUT_FILE}

# Save to START_LINE_NUM just the line number where moduleName{METHOD-INVOKE} is located:

START_LINE_NUM=$( \

grep -n \begin{module}{\\\\moduleName{${MODULE}}} ${IN_FILE} | \

sed -n 's/^\([0-9]*\)[:].*/\1/p' \

)

# Delete the beginnign ofthe file up to the line with moduleName{METHOD-INVOKE} inclusively

sed "1,${START_LINE_NUM}d" ${IN_FILE} > ${AUX_FILE}

# Save to END_LINE_NUM just the line number where the first end{module} is located in the new cut.tex:

END_LINE_NUM=$(grep -n -m 1 \end{module} ${AUX_FILE} | sed -n 's/^\([0-9]*\)[:].*/\1/p')

# Make END_LINE_NUM to point to the line prior to end{module}

END_LINE_NUM=`expr ${END_LINE_NUM} - 1`

# Retain the beginning of new cut.tex up to the line prior to first end{module}. Append to final.tex

head -n ${END_LINE_NUM} ${AUX_FILE} >> ${OUT_FILE}

# Append \end{document} to the end of the file

echo "" >> ${OUT_FILE}

echo "\end{document}" >> ${OUT_FILE}

rm -f ${AUX_FILE}