From 50d08824478203e736b58ff0c8a39f62efc7f84c Mon Sep 17 00:00:00 2001
From: tsuchiya <tsuchiya>
Date: Tue, 8 Jan 2002 07:32:44 +0000
Subject: [PATCH] (gnus-namazu/highlight-words): Reimplemented.

---
 ChangeLog           |    4 ++++
 lisp/gnus-namazu.el |   57 ++++++++++++++++++++++++++-------------------------
 2 files changed, 33 insertions(+), 28 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index f8e3b4c..fd77355 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2002-01-08  TSUCHIYA Masatoshi  <tsuchiya@namazu.org>
+
+	* lisp/gnus-namazu.el (gnus-namazu/highlight-words): Reimplemented.
+
 2002-01-08  Katsumi Yamaoka <yamaoka@jpl.org>
 
 	* lisp/nnheader.el (mail-narrow-to-head): Copy from ietf-drums.el;
diff --git a/lisp/gnus-namazu.el b/lisp/gnus-namazu.el
index f734338..a577798 100644
--- a/lisp/gnus-namazu.el
+++ b/lisp/gnus-namazu.el
@@ -1,4 +1,4 @@
-;;; gnus-namazu.el --- Search mail with Namazu.
+;;; gnus-namazu.el --- Search mail with Namazu. -*- coding: iso-2022-7bit; -*-
 
 ;; Copyright (C) 2000,2001,2002 TSUCHIYA Masatoshi <tsuchiya@namazu.org>
 
@@ -514,33 +514,34 @@ generate possible group names from it."
 			  'gnus-namazu/read-query-history)))
 
 (defun gnus-namazu/highlight-words (query)
-  (let ((strings)
-	(start 0))
-    (while (string-match
-	    "[ \t\r\f\n]*\\(\\(and\\|or\\|\\(not\\)\\)[ \t\r\f\n]+\\)?\
-\\(\\+[^ \t\r\f\n]+:\\)?\\(/\\([^/]+\\)/\\|\\(\"\\([^\"]+\\)\"\\|\
-{\\([^{}]+\\)}\\)\\|[^ \t\r\f\n]+\\)" query start)
-      (setq start (match-end 0))
-      (or (match-beginning 3)		; NOT search
-	  (match-beginning 4)		; Field search
-	  (match-beginning 6)		; Regular expression search
-	  (if (match-beginning 7)	; Phrase search
-	      (dolist (str (split-string
-			    (if (match-beginning 8)
-				(match-string 8 query)
-			      (match-string 9 query))))
-		(when (> (length str) 0)
-		  (push str strings)))
-	    (push (match-string 5 query) strings))))
-    (and strings
-	 (list
-	  (list
-	   (regexp-opt (mapcar
-			(lambda (str)
-			  (if (string-match "\\`\\*?\\([^\\*]*\\)\\*?\\'" str)
-			      (match-string 1 str) str))
-			strings))
-	   0 0 'gnus-namazu-query-highlight-face)))))
+  (with-temp-buffer
+    (insert " " query)
+    ;; Remove tokens for NOT search
+    (goto-char (point-min))
+    (while (re-search-forward "[　 \t\r\f\n]+not[　 \t\r\f\n]+\
+\\([^　 \t\r\f\n\"{(/]+\\|\"[^\"]+\"\\|{[^}]+}\\|([^)]+)\\|/[^/]+/\\)+" nil t)
+      (delete-region (match-beginning 0) (match-end 0)))
+    ;; Remove tokens for Field search
+    (goto-char (point-min))
+    (while (re-search-forward "[　 \t\r\f\n]+\\+[^　 \t\r\f\n:]+:\
+\\([^　 \t\r\f\n\"{(/]+\\|\"[^\"]+\"\\|{[^}]+}\\|([^)]+)\\|/[^/]+/\\)+" nil t)
+      (delete-region (match-beginning 0) (match-end 0)))
+    ;; Remove tokens for Regexp search
+    (goto-char (point-min))
+    (while (re-search-forward "/[^/]+/" nil t)
+      (delete-region (match-beginning 0) (match-end 0)))
+    ;; Remove brackets, double quote, asterisk and operators
+    (goto-char (point-min))
+    (while (re-search-forward "\\([(){}\"*]\\|\\b\\(and\\|or\\)\\b\\)" nil t)
+      (delete-region (match-beginning 0) (match-end 0)))
+    ;; Collect all keywords
+    (setq query nil)
+    (goto-char (point-min))
+    (while (re-search-forward "[^　 \t\r\f\n]+" nil t)
+      (push (match-string 0) query))
+    (when query
+      (list (list (regexp-opt query)
+		  0 0 'gnus-namazu-query-highlight-face)))))
 
 (defun gnus-namazu/truncate-article-list (articles)
   (let ((hit (length articles)))
-- 
1.7.10.4