# HG changeset patch
# User lost@l-w.ca
# Date 1295755263 25200
# Node ID 7c35fa8dbc91f906501d9db8b7ed6d149e91a76d
# Parent  ac311e7ffed6bfb996133f1595916322652e0d51
Added initial framework for lwbasic

diff -r ac311e7ffed6 -r 7c35fa8dbc91 .hgignore
--- a/.hgignore	Sat Jan 22 18:28:07 2011 -0700
+++ b/.hgignore	Sat Jan 22 21:01:03 2011 -0700
@@ -9,5 +9,6 @@
 lwar
 lwlink
 lwobjdump
+lwbasic
 *.html
 *.pdf
diff -r ac311e7ffed6 -r 7c35fa8dbc91 Makefile
--- a/Makefile	Sat Jan 22 18:28:07 2011 -0700
+++ b/Makefile	Sat Jan 22 21:01:03 2011 -0700
@@ -28,7 +28,7 @@
 .PHONY: all
 all: $(MAIN_TARGETS)
 
-subdirs := lwasm lwlink lwar lwlib docs
+subdirs := lwasm lwlink lwar lwlib lwbasic docs
 
 -include $(subdirs:=/rules.make)
 
@@ -50,6 +50,9 @@
 lwar: lwar/lwar$(PROGSUFFIX)
 lwobjdump: lwlink/lwobjdump$(PROGSUFFIX)
 
+.PHONY: lwbasic
+lwbasic: lwbasic/lwbasic$(PROGSUFFIX)
+
 lwasm/lwasm$(PROGSUFFIX): $(lwasm_objs) lwlib lwasm/rules.make
 	@echo Linking $@
 	@$(CC) -o $@ $(lwasm_objs) $(LDFLAGS)
@@ -98,7 +101,7 @@
 	
 
 .PHONY: clean
-clean:
+clean: $(cleantargs)
 	@echo "Cleaning up"
 	@rm -f lwlib/liblw.a lwasm/lwasm$(PROGSUFFIX) lwlink/lwlink$(PROGSUFFIX) lwlink/lwobjdump$(PROGSUFFIX) lwar/lwar$(PROGSUFFIX)
 	@rm -f $(lwasm_objs) $(lwlink_objs) $(lwar_objs) $(lwlib_objs) $(lwobjdump_objs)
@@ -106,7 +109,7 @@
 	@rm -f */*.exe
 
 .PHONY: realclean
-realclean: clean
+realclean: clean $(realcleantargs)
 	@echo "Cleaning up even more"
 	@rm -f $(lwasm_deps) $(lwlink_deps) $(lwar_deps) $(lwlib_deps) $(lwobjdump_deps)
 	@rm -f docs/manual/*.html docs/manual/*.pdf
diff -r ac311e7ffed6 -r 7c35fa8dbc91 lwbasic/lwbasic.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lwbasic/lwbasic.h	Sat Jan 22 21:01:03 2011 -0700
@@ -0,0 +1,37 @@
+/*
+lwbasic.h
+
+Copyright © 2011 William Astle
+
+This file is part of LWTOOLS.
+
+LWTOOLS is free software: you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation, either version 3 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+definitions used throughout lwbasic
+*/
+
+#ifndef __lwbasic_h_seen__
+#define __lwbasic_h_seen__
+
+typedef struct
+{
+	char *output_file;
+	char *input_file;
+	
+	int debug_level;
+} cstate;
+
+#endif /* __lwbasic_h_seen__ */
diff -r ac311e7ffed6 -r 7c35fa8dbc91 lwbasic/main.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lwbasic/main.c	Sat Jan 22 21:01:03 2011 -0700
@@ -0,0 +1,100 @@
+/*
+main.c
+
+Copyright © 2011 William Astle
+
+This file is part of LWTOOLS.
+
+LWTOOLS is free software: you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation, either version 3 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+main program startup handling for lwbasic
+*/
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <lw_cmdline.h>
+#include <lw_string.h>
+#include <lw_alloc.h>
+
+#include "lwbasic.h"
+
+#define PROGVER "lwbasic from " PACKAGE_STRING
+
+static struct lw_cmdline_options options[] =
+{
+	{ "output",			'o',		"FILE",		0,							"Output to FILE"},
+	{ "debug",			'd',		"LEVEL",	lw_cmdline_opt_optional,	"Set debug mode"},
+	{ 0 }
+};
+
+static int parse_opts(int key, char *arg, void *data)
+{
+	cstate *state = data;
+	
+	switch (key)
+	{
+	case 'o':
+		if (state -> output_file)
+			lw_free(state -> output_file);
+		state -> output_file = lw_strdup(arg);
+		break;
+
+	case 'd':
+		if (!arg)
+			state -> debug_level = 50;
+		else
+			state -> debug_level = atoi(arg);
+		break;
+	
+	case lw_cmdline_key_end:
+		return 0;
+		
+	case lw_cmdline_key_arg:
+		if (state -> input_file)
+		{
+			fprintf(stderr, "Already have an input file; ignoring %s\n", arg);
+		}
+		else
+		{
+			state -> input_file = lw_strdup(arg);
+		}
+		break;
+		
+	default:
+		return lw_cmdline_err_unknown;
+	}
+	
+	return 0;
+}
+
+static struct lw_cmdline_parser cmdline_parser =
+{
+	options,
+	parse_opts,
+	"INPUTFILE",
+	"lwbasic, a compiler for a dialect of Basic\vPlease report bugs to lost@l-w.ca.",
+	PROGVER
+};
+
+int main(int argc, char **argv)
+{
+	cstate state = { 0 };
+
+	lw_cmdline_parse(&cmdline_parser, argc, argv, 0, 0, &state);
+
+	exit(0);
+}
diff -r ac311e7ffed6 -r 7c35fa8dbc91 lwbasic/rules.make
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lwbasic/rules.make	Sat Jan 22 21:01:03 2011 -0700
@@ -0,0 +1,28 @@
+dirname := $(dir $(lastword $(MAKEFILE_LIST)))
+lwbasic_dir := $(dirname)
+
+lwbasic_lsrcs := main.c
+
+lwbasic_srcs := $(addprefix $(dirname),$(lwbasic_lsrcs))
+lwbasic_objs := $(lwbasic_srcs:.c=.o)
+lwbasic_deps := $(lwbasic_srcs:.c=.d)
+
+
+
+$(lwbasic_dir)lwbasic$(PROGSUFFIX): $(lwbasic_objs) lwlib $(lwbasic_dir)rules.make
+	@echo "Linking $@"
+	@$(CC) -o $@ $(lwbasic_objs) $(LDFLAGS)
+
+cleantargs := $(cleantargs) lwbasicclean
+realcleantargs := $(realcleantargs) lwbasicrealclean
+
+.PHONY: lwbasicclean lwbasicrealclean
+lwbasicrealclean:
+	@echo "Really cleaning up lwbasic"
+	@cd $(lwbasic_dir) && rm -f *.d
+
+lwbasicclean:
+	@echo "Cleaning up lwbasic"
+	@cd $(lwbasic_dir) && rm -f *.o *.exe lwbasic
+
+-include $(lwbasic_deps)