info-look.el and colons in info indexes

info-look.el and colons in info indexes

[Kevin Ryde]

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The following lets C-h C-i work on Guile procedures with colons in
their name, like `match:count'.  It follows what info.el does
nowadays, assuming I understand the "index entry" case in
Info-try-follow-nearest-node.

	* info-look.el (info-lookup-make-completions): Allow colons in index
	entries by looking for ": " to terminate, as per latest info.el.

The guile manual isn't in info-look's defaults (for scheme-mode), but
the spot below will add it in order to see the effect of the change.

(require 'info-look)
(info-lookup-add-help
 :mode 'scheme-mode
 :regexp "[^()'\" \t\n]+"
 :ignore-case t
 :doc-spec '(("(guile)Procedure Index" nil
              "^[ \t]+- [^:]+:[ \t]*" "\\($\\| \\)")))



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Index: info-look.el
===================================================================
RCS file: /cvsroot/emacs/emacs/lisp/info-look.el,v
retrieving revision 1.32
diff -u -c -F^( -r1.32 info-look.el
cvs server: conflicting specifications of output style
*** info-look.el	5 Apr 2003 12:58:02 -0000	1.32
--- info-look.el	9 May 2003 23:28:38 -0000
***************
*** 1,7 ****
  ;;; info-look.el --- major-mode-sensitive Info index lookup facility
  ;; An older version of this was known as libc.el.
  
! ;; Copyright (C) 1995,96,97,98,99,2001  Free Software Foundation, Inc.
  
  ;; Author: Ralph Schleicher <rs@nunatak.allgaeu.org>
  ;;         (did not show signs of life (Nov 2001)  -stef)
--- 1,7 ----
  ;;; info-look.el --- major-mode-sensitive Info index lookup facility
  ;; An older version of this was known as libc.el.
  
! ;; Copyright (C) 1995,96,97,98,99,2001, 2003  Free Software Foundation, Inc.
  
  ;; Author: Ralph Schleicher <rs@nunatak.allgaeu.org>
  ;;         (did not show signs of life (Nov 2001)  -stef)
*************** (defun info-lookup-make-completions (top
*** 468,474 ****
  	      (progn
  		(goto-char (point-min))
  		(and (search-forward "\n* Menu:" nil t)
! 		     (while (re-search-forward "\n\\* \\([^:\t\n]*\\):" nil t)
  		       (setq entry (match-string 1)
  			     item (funcall trans entry))
  		       ;; `trans' can return nil if the regexp doesn't match.
--- 468,474 ----
  	      (progn
  		(goto-char (point-min))
  		(and (search-forward "\n* Menu:" nil t)
! 		     (while (re-search-forward "\n\\* \\(.*\\): " nil t)
  		       (setq entry (match-string 1)
  			     item (funcall trans entry))
  		       ;; `trans' can return nil if the regexp doesn't match.

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