ext/commonmarker/cmark/src/render.c in commonmarker-0.14.15 vs ext/commonmarker/cmark/src/render.c in commonmarker-0.15.0

@@ -3,10 +3,11 @@
 #include "chunk.h"
 #include "cmark.h"
 #include "utf8.h"
 #include "render.h"
 #include "node.h"
+#include "syntax_extension.h"
 
 static CMARK_INLINE void S_cr(cmark_renderer *renderer) {
   if (renderer->need_cr < 1) {
     renderer->need_cr = 1;
   }
@@ -28,10 +29,20 @@
   int last_nonspace;
   int len;
   cmark_chunk remainder = cmark_chunk_literal("");
   int k = renderer->buffer->size - 1;
 
+  cmark_syntax_extension *ext = NULL;
+  cmark_node *n = node;
+  while (n && !ext) {
+    ext = n->extension;
+    if (!ext)
+      n = n->parent;
+  }
+  if (ext && !ext->commonmark_escape_func)
+    ext = NULL;
+
   wrap = wrap && !renderer->no_linebreaks;
 
   if (renderer->in_tight_list_item && renderer->need_cr > 1) {
     renderer->need_cr = 1;
   }
@@ -61,9 +72,13 @@
 
     len = cmark_utf8proc_iterate((const uint8_t *)source + i, length - i, &c);
     if (len == -1) { // error condition
       return;        // return without rendering rest of string
     }
+
+    if (ext && ext->commonmark_escape_func(ext, node, c))
+      cmark_strbuf_putc(renderer->buffer, '\\');
+
     nextc = source[i + len];
     if (c == 32 && wrap) {
       if (!renderer->begin_line) {
         last_nonspace = renderer->buffer->size;
         cmark_strbuf_putc(renderer->buffer, ' ');