diff options
Diffstat (limited to 'lisp/info-xref.el')
| -rw-r--r-- | lisp/info-xref.el | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/lisp/info-xref.el b/lisp/info-xref.el index 90a8d4968de..c38e23bab8a 100644 --- a/lisp/info-xref.el +++ b/lisp/info-xref.el @@ -367,13 +367,28 @@ in the path." (forward-line))) (info-xref-check-buffer)))))))) +(defconst info-xref-node-re "\\(?1:\\(([^)]*)\\)[^.,]+\\)" + "Regexp with subexp 1 matching (manual)node.") + +;; "@xref{node,crossref,manual}." produces: +;; texinfo 4 or 5: +;; *Note crossref: (manual)node. +;; "@xref{node,,manual}." produces: +;; texinfo 4: +;; *Note node: (manual)node. +;; texinfo 5: +;; *Note (manual)node::. +(defconst info-xref-note-re + (concat "\\*[Nn]ote[ \n\t]+\\(?:" + "[^:]*:[ \n\t]+" info-xref-node-re "\\|" + info-xref-node-re "::\\)[.,]") + "Regexp matching a \"*note...\" link.") + (defun info-xref-check-buffer () "Check external references in the info file in the current buffer. This should be the raw file contents, not `Info-mode'." (goto-char (point-min)) - (while (re-search-forward - "\\*[Nn]ote[ \n\t]+[^:]*:[ \n\t]+\\(\\(([^)]*)\\)[^.,]+\\)[.,]" - nil t) + (while (re-search-forward info-xref-note-re nil t) (save-excursion (goto-char (match-beginning 1)) ;; start of nodename as error position (info-xref-check-node (match-string 1))))) |