- Add document for search option `foreign-regexp/toggle-eval-replacem…

…ent'.
k-talo · May 25, 2013 · f0f1d8c · f0f1d8c
1 parent c0d760e
commit f0f1d8c
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/foreign-regexp.el b/foreign-regexp.el
@@ -247,6 +247,18 @@
 ;;
 ;;      Toggle search option `foreign-regexp/toggle-eval-replacement'.
 ;;
+;;      When this search option is on, the replacement string for
+;;      a command `foreign-regexp/query-replace' will be evaluated
+;;      as expression. For example, these commands:
+;;
+;;        For `Perl':
+;;          `M-s M-% ^ <RET> no strict 'vars';sprintf('%05d: ', ++$LINE) <RET>'
+;;
+;;        For `Ruby':
+;;          `M-s M-% ^ <RET> $LINE||=0;sprintf('%05d: ', $LINE+=1) <RET>'
+;;
+;;      put line number to beginning of each lines.
+;;  
 ;;
 ;; COMMANDS(4): CONSTRUCTING REGEXP
 ;; ================================