fix: Only allow a single newline in when URLizing RFC tags (ietf-tools#4710)

larseggert · web-flow · commit b6b48ec8f92b · 2022-11-05T17:22:56.000Z
Fixes ietf-tools#4705
diff --git a/ietf/doc/templatetags/ietf_filters.py b/ietf/doc/templatetags/ietf_filters.py
@@ -249,7 +249,7 @@ def urlize_ietf_docs(string, autoescape=None):
         flags=re.IGNORECASE | re.ASCII,
     )
     string = re.sub(
-        r"\b(?<![/\-:=#\"\'])((RFC|BCP|STD|FYI)\s*0*(\d+))\b",
+        r"\b(?<![/\-:=#\"\'])((RFC|BCP|STD|FYI) *\n? *0*(\d+))\b",
         link_other_doc_match,
         string,
         flags=re.IGNORECASE | re.ASCII,

Original file line number	Diff line number	Diff line change
`@@ -249,7 +249,7 @@ def urlize_ietf_docs(string, autoescape=None):`
`249`	`249`	`flags=re.IGNORECASE \| re.ASCII,`
`250`	`250`	`)`
`251`	`251`	`string = re.sub(`
`252`		`- r"\b(?<![/\-:=#\"\'])((RFC\|BCP\|STD\|FYI)\s0(\d+))\b",`
	`252`	`+ r"\b(?<![/\-:=#\"\'])((RFC\|BCP\|STD\|FYI) \n? 0*(\d+))\b",`
`253`	`253`	`link_other_doc_match,`
`254`	`254`	`string,`
`255`	`255`	`flags=re.IGNORECASE \| re.ASCII,`