freebsd-dev/sys/boot/ficl/softwords/softcore.awk
Daniel C. Sobral 0812b1e2c9 Fix world-breaking bug, add $FreeBSD$ tag.
This happened to be my first "for real" broken world. I had broken
it once before, but nobody noticed, so it didn't count.

So, how do I get the "I broke world and all I got was the lousy t-shirt"
t-shirt?
1999-09-29 10:58:43 +00:00

98 lines
2.2 KiB
Awk

#!/usr/bin/awk -f
# Convert forth source files to a giant C string
# Joe Abley <jabley@patho.gen.nz>, 12 January 1999
# $FreeBSD$
BEGIN \
{
printf "/***************************************************************\n";
printf "** s o f t c o r e . c\n";
printf "** Forth Inspired Command Language -\n";
printf "** Words from CORE set written in FICL\n";
printf "** Author: John Sadler (john_sadler@alum.mit.edu)\n";
printf "** Created: 27 December 1997\n";
printf "** Last update: %s\n", strftime();
printf "***************************************************************/\n";
printf "\n/*\n";
printf "** This file contains definitions that are compiled into the\n";
printf "** system dictionary by the first virtual machine to be created.\n";
printf "** Created automagically by ficl/softwords/softcore.awk\n";
printf "*/\n";
printf "\n#include \"ficl.h\"\n";
printf "\nstatic char softWords[] =\n";
commenting = 0;
}
# some general early substitutions
{
gsub("\t", " "); # replace each tab with 4 spaces
gsub("\"", "\\\""); # escape quotes
gsub("\\\\[[:space:]]+$", ""); # toss empty comments
}
# strip out empty lines
/^ *$/ \
{
next;
}
# emit / ** lines as multi-line C comments
/^\\[[:space:]]\*\*/ && (commenting == 0) \
{
sub("^\\\\[[:space:]]", "");
printf "/*\n%s\n", $0;
commenting = 1;
next;
}
/^\\[[:space:]]\*\*/ \
{
sub("^\\\\[[:space:]]", "");
printf "%s\n", $0;
next;
}
# function to close a comment, used later
function end_comments()
{
commenting = 0;
printf "*/\n";
}
# pass commented preprocessor directives
/^\\[[:space:]]#/ \
{
if (commenting) end_comments();
sub("^\\\\[[:space:]]", "");
printf "%s\n", $0;
next;
}
# toss all other full-line comments
/^\\/ \
{
if (commenting) end_comments();
next;
}
# emit all other lines as quoted string fragments
{
if (commenting) end_comments();
sub("\\\\[[:space:]]+.*$", ""); # lop off trailing \ comments
sub("[[:space:]]+$", ""); # remove trailing spaces
printf " \"%s \\n\"\n", $0;
next;
}
END \
{
if (commenting) end_comments();
printf " \"quit \";\n";
printf "\n\nvoid ficlCompileSoftCore(FICL_VM *pVM)\n";
printf "{\n";
printf " assert(ficlExec(pVM, softWords) != VM_ERREXIT);\n";
printf "}\n";
}