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diff lwcc/strbuf.c @ 295:4b17780f2777 ccdev

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Checkpoint lwcc development Changed tactics with the preprocessor. Instead of getting clever and trying to do things the "fast" way, instead, just tokenize the whole input and process it that way. Also, set up so the preprocessor and compiler can be integrated instead of having to have a specifically correct output for the preprocessed file. Also removed the subdirectories in the lwcc directory. It made things more complicated than they needed to be.
author William Astle <lost@l-w.ca>
date Thu, 12 Sep 2013 22:06:26 -0600
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lwcc/strbuf.c	Thu Sep 12 22:06:26 2013 -0600
@@ -0,0 +1,57 @@
+/*
+lwcc/strbuf.c
+
+Copyright © 2013 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 <stdlib.h>
+
+#include <lw_alloc.h>
+
+#include "strbuf.h"
+
+struct strbuf *strbuf_new(void)
+{
+	struct strbuf *strbuf;
+	
+	strbuf = lw_alloc(sizeof(struct strbuf));
+	strbuf -> str = NULL;
+	strbuf -> bo = 0;
+	strbuf -> bl = 0;
+	return strbuf;
+}
+
+void strbuf_add(struct strbuf *strbuf, int c)
+{
+	if (strbuf -> bo >= strbuf -> bl)
+	{
+		strbuf -> bl += 100;
+		strbuf -> str = lw_realloc(strbuf -> str, strbuf -> bl);
+	}
+	strbuf -> str[strbuf -> bo++] = c;
+}
+
+char *strbuf_end(struct strbuf *strbuf)
+{
+	char *rv;
+
+	strbuf_add(strbuf, 0);
+	rv = strbuf -> str;
+	lw_free(strbuf);
+	return rv;
+}