From ba817d465caa48b5b814853d8f16602da2d1a8a9 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Fri, 9 Nov 2018 15:35:46 +0100
Subject: Move string functions to lstring.[hc]

---
 lstring.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 lstring.c

(limited to 'lstring.c')

diff --git a/lstring.c b/lstring.c
new file mode 100644
index 0000000..ee8904f
--- /dev/null
+++ b/lstring.c
@@ -0,0 +1,30 @@
+#include "lstring.h"
+
+BOOL isInt(const struct string *value, int start)
+{
+	size_t i;
+	for (i = start; i < value->l; ++i) {
+		if (value->s[i] < '0' || value->s[i] > '9') return FALSE;
+	}
+	return TRUE;
+}
+
+uint32_t parseUInt32(const struct string * const s)
+{
+	if (s == NULL || s->l > 10) {
+		return 0;
+	}
+	uint32_t ret = 0, last = 0;
+	for (size_t i = 0; i < s->l; ++i) {
+		if (s->s[i] < '0' || s->s[i] > '9') {
+			return 0;
+		}
+		ret = ret * 10 + (s->s[i] - '0');
+		if (ret < last) {
+			return 0;
+		}
+		last = ret;
+	}
+	return ret;
+}
+
-- 
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