--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lwlib/lw_strbuf.c	Mon Aug 05 21:27:09 2019 -0600
@@ -0,0 +1,56 @@
+/*
+lwlib/lw_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 "lw_strbuf.h"
+
+struct lw_strbuf *lw_strbuf_new(void)
+{
+	struct lw_strbuf *lw_strbuf;
+	
+	lw_strbuf = lw_alloc(sizeof(struct lw_strbuf));
+	lw_strbuf -> str = NULL;
+	lw_strbuf -> bo = 0;
+	lw_strbuf -> bl = 0;
+	return lw_strbuf;
+}
+
+void lw_strbuf_add(struct lw_strbuf *lw_strbuf, int c)
+{
+	if (lw_strbuf -> bo >= lw_strbuf -> bl)
+	{
+		lw_strbuf -> bl += 100;
+		lw_strbuf -> str = lw_realloc(lw_strbuf -> str, lw_strbuf -> bl);
+	}
+	lw_strbuf -> str[lw_strbuf -> bo++] = c;
+}
+
+char *lw_strbuf_end(struct lw_strbuf *lw_strbuf)
+{
+	char *rv;
+
+	lw_strbuf_add(lw_strbuf, 0);
+	rv = lw_strbuf -> str;
+	lw_free(lw_strbuf);
+	return rv;
+}