Initial data commit

Task/URL-encoding/C/url-encoding.c

@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <ctype.h>
+
+char rfc3986[256] = {0};
+char html5[256] = {0};
+
+/* caller responsible for memory */
+void encode(const char *s, char *enc, char *tb)
+{
+	for (; *s; s++) {
+		if (tb[*s]) sprintf(enc, "%c", tb[*s]);
+		else        sprintf(enc, "%%%02X", *s);
+		while (*++enc);
+	}
+}
+
+int main()
+{
+	const char url[] = "http://foo bar/";
+	char enc[(strlen(url) * 3) + 1];
+
+	int i;
+	for (i = 0; i < 256; i++) {
+		rfc3986[i] = isalnum(i)||i == '~'||i == '-'||i == '.'||i == '_'
+			? i : 0;
+		html5[i] = isalnum(i)||i == '*'||i == '-'||i == '.'||i == '_'
+			? i : (i == ' ') ? '+' : 0;
+	}
+
+	encode(url, enc, rfc3986);
+	puts(enc);
+
+	return 0;
+}