mmc

#!/bin/bash

help()
{
    echo "miniMatlab compiler."
    echo "Usage : mmc [-S ^ -m] [-p|-s|-t] [-o outfile] *.mm"
    echo "  -h | --help : Show this help text."
    echo "  -S | --assembly : Generate assembly file."
    echo "  -m | --emit-mic : Generate machine - independant code. Only one of these files is generated."
    echo "  -s | --trace-scan : Trace lexer's scan."
    echo "  -p | --trace-parse : Trace parse."
    echo "  -t | --trace-tacos : Trace three-address codes."
}

asm=0
mic=0
tp=0
ts=0
tc=0
outfile=""
infile=""

while [ "$1" != "" ]; do
    case $1 in
	-o | --output ) shift
			if [ "$outfile" != "" ]; then
			    echo "Only one file can be set as output:"
			    echo "Specified : $outfile"
			    echo "Also specified : $1"
			    exit 1
			else
			    outfile=$1
			fi
			;;
	-S | --assembly ) asm=1
			  ;;
	-m | --emit-mic ) mic=1
			  ;;
	-p | --trace-parse ) tp=1
			     ;;
	-s | --trace-scan ) ts=1
			    ;;
	-t | --trace-tacos ) tc=1
			     ;;
	-h | --help ) help
		      exit 0
		      ;;
	* ) if [ "$infile" != "" ]; then
		echo "Error : only one file can be compiled at a time:"
		echo "Specified : $infile"
		echo "Also specified : $1"
		exit 1
	    else
		infile=$1
	    fi
	    ;;
    esac
    shift
done

if [ $mic -eq 1 ] && [ $asm -eq 1 ] ; then
    echo "Only one of -S and -m can be set."
    exit 1
fi

if [ "$infile" == "" ]; then
    echo "Error : no input files specified."
    exit 1
fi

if [ "$outfile" == "" ]; then
    if [ $asm -eq 1 ]; then
	outfile="$infile.asm"
    elif [ $mic -eq 1 ]; then
	outfile="$infile.out"
    else
	outfile="a.out"
    fi
fi

if [ "$infile" == "$outfile" ]; then
    echo "Error : input and output files are same."
    exit 1
fi

options=""
if [ $tp -eq 1 ]; then
    options+="--trace-parse "
fi
if [ $ts -eq 1 ]; then
    options+="--trace-scan "
fi
if [ $tc -eq 1 ]; then
    options+="--trace-tacos "
fi

if [ $mic -eq 1 ]; then
    options+="--emit-mic "
    ./compile $options ./$infile >$outfile
elif [ $asm -eq 1 ]; then
    ./compile $options ./$infile >$outfile
else
    ./compile $options ./$infile >$outfile.s
    gcc -lm $outfile.s mmstd.o -o $outfile
    rm -f $outfile.s
fi