prevent single tildes from becoming strikethrough

This will fix #25
r-lib · May 9, 2024 · 6111d2b · 6111d2b
1 parent 1209f2d
commit 6111d2b
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diff --git a/DESCRIPTION b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: commonmark
 Type: Package
 Title: High Performance CommonMark and Github Markdown Rendering in R
-Version: 1.9.1
+Version: 1.9.2
 Authors@R: c(
     person("Jeroen", "Ooms", ,"[email protected]", role = c("aut", "cre"),
         comment = c(ORCID = "0000-0002-4035-0289")),

diff --git a/NEWS b/NEWS
@@ -1,3 +1,6 @@
+1.9.2
+  - Prevent single-tildes from being parsed as strikethrough (#25)
+
 1.9.1
   - Update libcmark-gfm to 0.29.0.gfm.13
 

diff --git a/src/wrapper.c b/src/wrapper.c
@@ -71,6 +71,10 @@ SEXP R_render_markdown(SEXP text, SEXP format, SEXP sourcepos, SEXP hardbreaks,
 
   /* Prevent filtering embedded resources: https://github.com/github/cmark-gfm#security */
   options += CMARK_OPT_UNSAFE;
+  /* Only process double tildes as strikethrough, otherwise, leave them asis 
+   * https://github.com/r-lib/commonmark/issues/25
+   * */
+  options += CMARK_OPT_STRIKETHROUGH_DOUBLE_TILDE;
 
   /* parse input */
   SEXP input = STRING_ELT(text, 0);