Changeset 20 in Main for trunk/Common

Timestamp:

Sep 14, 2024, 6:59:15 PM (2 months ago)

Author:

Nishi

Message:

can show index

Location:

trunk/Common

Files:

• cm_string.h (modified) (1 diff)
• string.c (modified) (2 diffs)

trunk/Common/cm_string.h

@@ -6 +6 @@
 #include <stdbool.h>
 
+int cm_hex(const char* str, int len);
+char* cm_html_escape(const char* str);
 char* cm_strcat(const char* a, const char* b);
 char* cm_strcat3(const char* a, const char* b, const char* c);

trunk/Common/string.c

@@ -4 +4 @@
 #include <stdlib.h>
 #include <stdbool.h>
+#include <stdio.h>
 #include <ctype.h>
 
@@ -113 +114 @@
         return true;
 }
+
+int cm_hex(const char* str, int len) {
+        int n = 0;
+        int i;
+        for(i = 0; i < len; i++) {
+                char c = str[i];
+                n *= 16;
+                if('0' <= c && c <= '9') {
+                        n += c - '0';
+                } else if('a' <= c && c <= 'f') {
+                        n += c - 'a' + 10;
+                } else if('A' <= c && c <= 'F') {
+                        n += c - 'A' + 10;
+                }
+        }
+        return n;
+}
+
+char* cm_html_escape(const char* str) {
+        int i;
+        char* result = malloc(1);
+        result[0] = 0;
+        char cbuf[2];
+        cbuf[1] = 0;
+        for(i = 0; str[i] != 0; i++) {
+                cbuf[0] = str[i];
+                if(str[i] == '&') {
+                        char* tmp = result;
+                        result = cm_strcat(tmp, "&amp;");
+                        free(tmp);
+                } else if(str[i] == '<') {
+                        char* tmp = result;
+                        result = cm_strcat(tmp, "&lt;");
+                        free(tmp);
+                } else if(str[i] == '>') {
+                        char* tmp = result;
+                        result = cm_strcat(tmp, "&gt;");
+                        free(tmp);
+                } else {
+                        char* tmp = result;
+                        result = cm_strcat(tmp, cbuf);
+                        free(tmp);
+                }
+        }
+        return result;
+}