M src/utils.c → src/utils.c

@@ -386,8 +386,7 @@ 
     return 4; // Default to 4 bytes if no smaller size is found.
 }
 
-char *hex_unescape_string(const char *input) 
-{
+char *hex_unescape_string(const char *input) {
     if (input == NULL) {
         return NULL; // Handle null input
     }
@@ -403,24 +402,35 @@ const char *src = input;
     char *dst = output;
 
     while (*src) {
-        if (*src == '\\' && *(src + 1)) {
-            switch (*(src + 1)) {
-                case 'n': *dst = '\n'; break;
-                case 't': *dst = '\t'; break;
-                case 'r': *dst = '\r'; break;
-                case '\\': *dst = '\\'; break;
-                case '\'': *dst = '\''; break;
-                case '\"': *dst = '\"'; break;
-                case 'b': *dst = '\b'; break;
-                case 'f': *dst = '\f'; break;
-                case 'v': *dst = '\v'; break;
-                default:
-                    // If not a valid escape, copy the backslash and next character
-                    *dst++ = *src;
-                    *dst = *(src + 1);
+        if (*src == '\\') {
+            if (*(src + 1) == '\\') {
+                // Handle escaped backslash
+                *dst = '\\';
+                src += 2; // Skip both backslashes
+                if (*(src + 2)) {
+                  *dst = *(src + 2);
+                  src += 1;
+                }
+            } else {
+                // Handle other escape sequences
+                switch (*(src + 1)) {
+                    case 'n': *dst = '\n'; break;
+                    case 't': *dst = '\t'; break;
+                    case 'r': *dst = '\r'; break;
+                    case '\'': *dst = '\''; break;
+                    case '\"': *dst = '\"'; break;
+                    case 'b': *dst = '\b'; break;
+                    case 'f': *dst = '\f'; break;
+                    case 'v': *dst = '\v'; break;
+                    default:
+                        // Unknown escape sequence, copy as-is
+                        *dst++ = '\\';
+                        *dst = *(src + 1);
+                }
+                src += 2; // Skip backslash and escape character
             }
-            src += 2; // Skip the escape sequence
         } else {
+            // Copy normal characters
             *dst = *src;
             src++;
         }
@@ -429,4 +439,5 @@ }
 
     *dst = '\0'; // Null-terminate the output string
     return output;
-} 
+}
+