Apply upstream PR github/cmark-gfm#362

Fixes r-lib#23

Author: jeroen

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: commonmark
 Type: Package
 Title: High Performance CommonMark and Github Markdown Rendering in R
-Version: 1.9.2
+Version: 1.9.3
 Authors@R: c(
     person("Jeroen", "Ooms", ,"[email protected]", role = c("aut", "cre"),
         comment = c(ORCID = "0000-0002-4035-0289")),

NEWS

@@ -1,3 +1,6 @@
+1.9.3
+  - Apply upstream PR https://github.com/github/cmark-gfm/pull/362
+
 1.9.1
   - Update libcmark-gfm to 0.29.0.gfm.13
 

src/cmark/node.c

@@ -288,6 +288,10 @@ const char *cmark_node_get_type_string(cmark_node *node) {
     return "link";
   case CMARK_NODE_IMAGE:
     return "image";
+  case CMARK_NODE_FOOTNOTE_REFERENCE:
+    return "fnref";
+  case CMARK_NODE_FOOTNOTE_DEFINITION:
+    return "fn";
   }
 
   return "<unknown>";

src/cmark/xml.c

@@ -134,6 +134,25 @@ static int S_render_node(cmark_node *node, cmark_event_type ev_type,
       escape_xml(xml, node->as.link.title.data, node->as.link.title.len);
       cmark_strbuf_putc(xml, '"');
       break;
+    case CMARK_NODE_FOOTNOTE_DEFINITION:
+      cmark_strbuf_puts(xml, " id=\"fn-");
+      escape_xml(xml, node->as.literal.data, node->as.literal.len);
+      cmark_strbuf_putc(xml, '"');
+      break;
+    case CMARK_NODE_FOOTNOTE_REFERENCE:
+      cmark_strbuf_puts(xml, " id=\"fnref-");
+      escape_xml(xml, node->parent_footnote_def->as.literal.data, node->parent_footnote_def->as.literal.len);
+      if (node->footnote.ref_ix > 1) {
+        char n[32];
+        snprintf(n, sizeof(n), "%d", node->footnote.ref_ix);
+        cmark_strbuf_puts(xml, "-");
+        cmark_strbuf_puts(xml, n);
+      }
+      cmark_strbuf_putc(xml, '"');
+      cmark_strbuf_puts(xml, " destination=\"fn-");
+      escape_xml(xml, node->parent_footnote_def->as.literal.data, node->parent_footnote_def->as.literal.len);
+      cmark_strbuf_putc(xml, '"');
+      break;
     default:
       break;
     }

src/patches/362.diff

@@ -0,0 +1,45 @@
+diff --git a/src/node.c b/src/node.c
+index e7a9606d5..c7e62d25b 100644
+--- a/src/node.c
++++ b/src/node.c
+@@ -288,6 +288,10 @@ const char *cmark_node_get_type_string(cmark_node *node) {
+     return "link";
+   case CMARK_NODE_IMAGE:
+     return "image";
++  case CMARK_NODE_FOOTNOTE_REFERENCE:
++    return "fnref";
++  case CMARK_NODE_FOOTNOTE_DEFINITION:
++    return "fn";
+   }
+ 
+   return "<unknown>";
+diff --git a/src/xml.c b/src/xml.c
+index 5753e5ab9..c9a79cfd6 100644
+--- a/src/xml.c
++++ b/src/xml.c
+@@ -134,6 +134,25 @@ static int S_render_node(cmark_node *node, cmark_event_type ev_type,
+       escape_xml(xml, node->as.link.title.data, node->as.link.title.len);
+       cmark_strbuf_putc(xml, '"');
+       break;
++    case CMARK_NODE_FOOTNOTE_DEFINITION:
++      cmark_strbuf_puts(xml, " id=\"fn-");
++      escape_xml(xml, node->as.literal.data, node->as.literal.len);
++      cmark_strbuf_putc(xml, '"');
++      break;
++    case CMARK_NODE_FOOTNOTE_REFERENCE:
++      cmark_strbuf_puts(xml, " id=\"fnref-");
++      escape_xml(xml, node->parent_footnote_def->as.literal.data, node->parent_footnote_def->as.literal.len);
++      if (node->footnote.ref_ix > 1) {
++        char n[32];
++        snprintf(n, sizeof(n), "%d", node->footnote.ref_ix);
++        cmark_strbuf_puts(xml, "-");
++        cmark_strbuf_puts(xml, n);
++      }
++      cmark_strbuf_putc(xml, '"');
++      cmark_strbuf_puts(xml, " destination=\"fn-");
++      escape_xml(xml, node->parent_footnote_def->as.literal.data, node->parent_footnote_def->as.literal.len);
++      cmark_strbuf_putc(xml, '"');
++      break;
+     default:
+       break;
+     }

src/patches/apply.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+# Upstream PR: https://github.com/github/cmark-gfm/pull/362
+patch -p2 -d ../cmark < 362.diff
+