#!/bin/sh
-# CORMACKSCRIPT General Syntax
+# CORMACKSCRIPT
+# written by daniel
+#
+# Usage: cormackscript [cmks file] [output file]
#
# IMPORTANT!
-# Make sure you change the 'scriptfile' and 'targetfile' variables as you see fit.
-# In addition, place
+# Place the comments (important to get spaces right too):
+# ; CMKS START
+# ; CMKS END
+# into your racket program, the 'compiled' code will be injected here.
#
# For extra niceness, if you have the racket program installed it will auto execute it.
#
+# A CormackScript file contains 3 columns separated by whitespace in the format [opcode|target|source]
+# The inc, print and read instructions read from the first column
+# The quit instruction can be standalone
#
-# Example:
-#
-# A CormackScript file contains 3 columns separated by whitespace in the format
-# opcode target source
-#
-#
-#
-# You can comment with ;
-#
+# Here's some sample code
#
-# Sample code
-#
+# mov 20 30
+# inc 1
+# read 21
+# print 21
+# quit
#
-
-scriptfile="A12d.cmks" # cormackscript file
-targetfile="A12d.rkt" # destination file
+# Note, for commands that only need one param you don't need to add empty columns
+# oh yeah, you can also comment with ;
# You can redefine these to whatever you want
inst1="add" # [tt] = [tt] + [ss]
inst2="sub" # [tt] = max([tt] - [ss], 0)
inst3="mov" # [tt] = [ss]
-inst4="" # [tt] = [tt] + 1, if [ss] = 0
-inst5="" # [tt] = [[ss]]
-inst6="" # [[tt]] = [ss]
+inst4="addeq" # [tt] = [tt] + 1, if [ss] = 0
+inst5="fetch" # [tt] = [[ss]]
+inst6="store" # [[tt]] = [ss]
inst7="print" # display [ss]
inst8="read" # read [tt]
inst9="quit" # halt
# Config ends here =-=-=-=-=-=-=-=-=
-sub() {
- cat "$scriptfile" |\
- sed 's/\s*;.*//g; /^\s*$/ d;' |\
- sed "s/$inst0/0/"
-
- # finally removes any non alphanumerics in case sm breaks
-}
-
-inject() {
- tmp="$(mktemp 'tempXXX')"
- sub >> "$tmp"
- sed -i "/\; CMKS START/,/\; CMKS END/{/\; CMKS START/!{/\; CMKS END/!d}}; /\; CMKS START/r $tmp" "$targetfile"
- rm "$tmp"
-}
+[ "$#" -ne 2 ] && { echo "Usage: cormackscript [cmks file] [output file]" && exit 1; }
+scriptfile="$1"; targetfile="$2"
+[ -f "$scriptfile" ] && [ -f "$targetfile" ] || { echo "Either $scriptfile or $targetfile do not exist" && exit 1; }
-
-[ -f "$scriptfile" ] && [ -f "$targetfile" ] || { echo "You are missing a file, please check that the current directory contains $scriptfile and $targetfile" && exit 1; }
+tmp="$(mktemp 'tempXXX')"
+cat "$scriptfile" |\
+ sed -r "s/\s*;.*//g; /^\s*$/ d; s/\s+/ /g; s/^\s+//" |\
+ awk "
+ /^$inst0\s/ {printf \"0%02d00 ; [%02d] = [%02d] + 1\n\",\$2,\$2,\$2}
+ /^$inst1\s/ {printf \"1%02d%02d ; [%02d] = [%02d] + [%02d]\n\",\$2,\$3,\$2,\$2,\$3}
+ /^$inst2\s/ {printf \"2%02d%02d ; [%02d] = max([%02d] - [%02d], 0)\n\",\$2,\$3,\$2,\$2,\$3}
+ /^$inst3\s/ {printf \"3%02d%02d ; [%02d] = [%02d]\n\",\$2,\$3,\$2,\$3}
+ /^$inst4\s/ {printf \"4%02d%02d ; [%02d] = [%02d] + 1, if [%02d] = 0\n\",\$2,\$3,\$2,\$2,\$3}
+ /^$inst5\s/ {printf \"5%02d%02d ; [%02d] = [[%02d]]\n\",\$2,\$3,\$2,\$3}
+ /^$inst6\s/ {printf \"6%02d%02d ; [[%02d]] = [%02d]\n\",\$2,\$3,\$2,\$3}
+ /^$inst7\s/ {printf \"700%02d ; display [%02d]\n\",\$2,\$2}
+ /^$inst8\s/ {printf \"8%02d00 ; read [%02d]\n\",\$2,\$2}
+ /^$inst9/ {print \"90000 ; halt\"}
+ !/^$inst0\s|^$inst1\s|^$inst2\s|^$inst3\s|^$inst4\s|^$inst5\s|^$inst6\s|^$inst7\s|^$inst8\s|^$inst9/
+ " >> "$tmp"
+sed -i "/\; CMKS START/,/\; CMKS END/{/\; CMKS START/!{/\; CMKS END/!d}}; /\; CMKS START/r $tmp" "$targetfile"
+rm "$tmp"
# If racket is installed run it directly
-# [ ! -z "$(command -v racket)" ] && racket "$targetfile"
-
-inject
+[ ! -z "$(command -v racket)" ] && racket "$targetfile" && echo ""
