--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lwasm/pragma.c	Wed Jan 19 22:27:17 2011 -0700
@@ -0,0 +1,124 @@
+/*
+pragma.c
+
+Copyright © 2010 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/>.
+*/
+
+#include <lw_string.h>
+
+#include "lwasm.h"
+#include "instab.h"
+
+struct pragma_list
+{
+	const char *str;
+	int flag;
+};
+
+static const struct pragma_list set_pragmas[] =
+{
+	{ "dollarnotlocal", PRAGMA_DOLLARNOTLOCAL },
+	{ "noindex0tonone", PRAGMA_NOINDEX0TONONE },
+	{ "undefextern", PRAGMA_UNDEFEXTERN },
+	{ "cescapes", PRAGMA_CESCAPES },
+	{ "importundefexport", PRAGMA_IMPORTUNDEFEXPORT },
+	{ "pcaspcr", PRAGMA_PCASPCR },
+	{ 0, 0 }
+};
+
+static const struct pragma_list reset_pragmas[] =
+{
+	{ "nodollarnotlocal", PRAGMA_DOLLARNOTLOCAL },
+	{ "index0tonone", PRAGMA_NOINDEX0TONONE },
+	{ "noundefextern", PRAGMA_UNDEFEXTERN },
+	{ "nocescapes", PRAGMA_CESCAPES },
+	{ "noimportundefexport", PRAGMA_IMPORTUNDEFEXPORT },
+	{ "nopcaspcr", PRAGMA_PCASPCR },
+	{ 0, 0 }
+};
+
+int parse_pragma_string(asmstate_t *as, char *str, int ignoreerr)
+{
+	char *p;
+	int i;
+	const char *np = str;
+	int pragmas = as -> pragmas;
+
+	while (np)
+	{
+		p = lw_token(np, ',', &np);
+		for (i = 0; set_pragmas[i].str; i++)
+		{
+			if (!strcasecmp(p, set_pragmas[i].str))
+			{
+				pragmas |= set_pragmas[i].flag;
+				goto out;
+			}
+		}
+		for (i = 0; reset_pragmas[i].str; i++)
+		{
+			if (!strcasecmp(p, reset_pragmas[i].str))
+			{
+				pragmas &= ~(reset_pragmas[i].flag);
+				goto out;
+			}
+		}
+		/* unrecognized pragma here */
+		if (!ignoreerr)
+		{
+			lw_free(p);
+			return 0;
+		}
+	out:	
+		lw_free(p);
+	}
+	as -> pragmas = pragmas;
+	return 1;
+}
+
+PARSEFUNC(pseudo_parse_pragma)
+{
+	char *ps, *t;
+	
+	for (t = *p; *t && !isspace(*t); t++)
+		/* do nothing */ ;
+	
+	ps = lw_strndup(*p, t - *p);
+	*p = t;
+
+	if (parse_pragma_string(as, ps, 0) == 0)
+	{
+		lwasm_register_error(as, l, "Unrecognized pragma string");
+	}
+	lw_free(ps);
+}
+
+PARSEFUNC(pseudo_parse_starpragma)
+{
+	char *ps, *t;
+	
+	for (t = *p; *t && !isspace(*t); t++)
+		/* do nothing */ ;
+	
+	ps = lw_strndup(*p, t - *p);
+	*p = t;
+
+	// *pragma must NEVER throw an error
+	parse_pragma_string(as, ps, 1);
+	lw_free(ps);
+}