*dest_ptr = *src_ptr;
}
+ n--;
src_ptr++;
dest_ptr++;
*dest_ptr = 0;
assert (*dest_ptr == 0);
return (dest);
-} /* }}} char *uri_unescape */
+} /* }}} char *uri_unescape_copy */
static char *uri_unescape (const char *string) /* {{{ */
{
return (strdup (buffer));
} /* }}} char *uri_escape */
+#define COPY_ENTITY(e) do { \
+ size_t len = strlen (e); \
+ if (dest_size < (len + 1)) \
+ break; \
+ strcpy (dest_ptr, (e)); \
+ dest_ptr += len; \
+ dest_size -= len; \
+} while (0)
+
+char *json_escape_copy (char *dest, const char *src, size_t n) /* {{{ */
+{
+ char *dest_ptr;
+ size_t dest_size;
+ size_t pos;
+
+ dest[0] = 0;
+ dest_ptr = dest;
+ dest_size = n;
+ for (pos = 0; src[pos] != 0; pos++)
+ {
+ if (src[pos] == '"')
+ COPY_ENTITY ("\\\"");
+ else if (src[pos] == '\\')
+ COPY_ENTITY ("\\\\");
+ else if (((uint8_t) src[pos]) < 32)
+ {
+ if (src[pos] == '\n')
+ COPY_ENTITY ("\\n");
+ else if (src[pos] == '\r')
+ COPY_ENTITY ("\\r");
+ else if (src[pos] == '\t')
+ COPY_ENTITY ("\\t");
+ else if (src[pos] == '\b')
+ COPY_ENTITY ("\\b");
+ else if (src[pos] == '\f')
+ COPY_ENTITY ("\\f");
+ else
+ {
+ char buffer[8];
+ sprintf (buffer, "\\u%04"PRIx8, (uint8_t) src[pos]);
+ buffer[sizeof (buffer) - 1] = 0;
+ COPY_ENTITY (buffer);
+ }
+ }
+ else
+ {
+ *dest_ptr = src[pos];
+ dest_ptr++;
+ dest_size--;
+ *dest_ptr = 0;
+ }
+
+ if (dest_size <= 1)
+ break;
+ }
+
+ return (dest);
+} /* }}} char *json_escape_copy */
+
+#undef COPY_ENTITY
+
+char *json_escape_buffer (char *buffer, size_t buffer_size)
+{
+ char temp[buffer_size];
+
+ json_escape_copy (temp, buffer, buffer_size);
+ memcpy (buffer, temp, buffer_size);
+
+ return (buffer);
+} /* }}} char *json_escape_buffer */
+
+char *json_escape (const char *string) /* {{{ */
+{
+ char buffer[4096];
+
+ if (string == NULL)
+ return (NULL);
+
+ json_escape_copy (buffer, string, sizeof (buffer));
+
+ return (strdup (buffer));
+} /* }}} char *json_escape */
+
const char *script_name (void) /* {{{ */
{
char *ret;
#define COPY_ENTITY(e) do { \
size_t len = strlen (e); \
- if (dest_size < (len + 1)) \
+ if (dest_size < (len + 1)) \
break; \
- strcpy (dest_ptr, (e)); \
- dest_ptr += len; \
- dest_size -= len; \
+ strcpy (dest_ptr, (e)); \
+ dest_ptr += len; \
+ dest_size -= len; \
} while (0)
char *html_escape_copy (char *dest, const char *src, size_t n) /* {{{ */
"\n\n");
if (title == NULL)
- title = "c4: collection4 graph interface";
+ title = "C₄: collection4 graph interface";
title_html = html_escape (title);
int html_print_logo (__attribute__((unused)) void *user_data) /* {{{ */
{
printf ("<a href=\"%s?action=list_graphs\" id=\"logo-canvas\">\n"
- " <h1>c<sup>4</sup></h1>\n"
+ " <h1>C<sub>4</sub></h1>\n"
" <div id=\"logo-subscript\">collection 4</div>\n"
"</a>\n");
term_html = html_escape (param ("q"));
printf ("<form action=\"%s\" method=\"get\" id=\"search-form\">\n"
- " <input type=\"hidden\" name=\"action\" value=\"list_graphs\" />\n"
+ " <input type=\"hidden\" name=\"action\" value=\"search\" />\n"
" <input type=\"text\" name=\"q\" value=\"%s\" id=\"search-input\" />\n"
" <input type=\"submit\" name=\"button\" value=\"Search\" />\n"
"</form>\n",