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;;; re-builder.el --- building Regexps with visual feedback |
;;; re-builder.el --- building Regexps with visual feedback |
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;; Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. |
;; Copyright (C) 1999, 2000, 2001, 2002, 2004 Free Software Foundation, Inc. |
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;; Author: Detlev Zundel <dzu@gnu.org> |
;; Author: Detlev Zundel <dzu@gnu.org> |
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;; Keywords: matching, lisp, tools |
;; Keywords: matching, lisp, tools |
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;; even the auto updates go all the way. Forcing an update overrides |
;; even the auto updates go all the way. Forcing an update overrides |
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;; this limit allowing an easy way to see all matches. |
;; this limit allowing an easy way to see all matches. |
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;; Currently `re-builder' understands four different forms of input, |
;; Currently `re-builder' understands five different forms of input, |
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;; namely `read', `string', `sregex' and `lisp-re' syntax. Read |
;; namely `read', `string', `rx', `sregex' and `lisp-re' syntax. Read |
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;; syntax and string syntax are both delimited by `"'s and behave |
;; syntax and string syntax are both delimited by `"'s and behave |
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;; according to their name. With the `string' syntax there's no need |
;; according to their name. With the `string' syntax there's no need |
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;; to escape the backslashes and double quotes simplifying the editing |
;; to escape the backslashes and double quotes simplifying the editing |
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;; somewhat. The other two allow editing of symbolic regular |
;; somewhat. The other three allow editing of symbolic regular |
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;; expressions supported by the packages of the same name. (`lisp-re' |
;; expressions supported by the packages of the same name. (`lisp-re' |
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;; is a package by me and its support may go away as it is nearly the |
;; is a package by me and its support may go away as it is nearly the |
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;; same as the `sregex' package in Emacs) |
;; same as the `sregex' package in Emacs) |