diff options
Diffstat (limited to 'lisp/ldg-regex.el')
| -rw-r--r-- | lisp/ldg-regex.el | 147 |
1 files changed, 84 insertions, 63 deletions
diff --git a/lisp/ldg-regex.el b/lisp/ldg-regex.el index 1c6b8f06..680063f7 100644 --- a/lisp/ldg-regex.el +++ b/lisp/ldg-regex.el @@ -1,3 +1,24 @@ +;;; ldg-regex.el --- Helper code for use with the "ledger" command-line tool + +;; Copyright (C) 2003-2013 John Wiegley (johnw AT gnu DOT org) + +;; This file is not part of GNU Emacs. + +;; This is free software; you can redistribute it and/or modify it under +;; the terms of the GNU General Public License as published by the Free +;; Software Foundation; either version 2, or (at your option) any later +;; version. +;; +;; This is distributed in the hope that it will be useful, but WITHOUT +;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +;; for more details. +;; +;; You should have received a copy of the GNU General Public License +;; along with GNU Emacs; see the file COPYING. If not, write to the +;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, +;; MA 02111-1307, USA. + (require 'rx) (eval-when-compile @@ -6,10 +27,10 @@ (defmacro ledger-define-regexp (name regex docs &rest args) "Simplify the creation of a Ledger regex and helper functions." (let ((defs - (list - `(defconst - ,(intern (concat "ledger-" (symbol-name name) "-regexp")) - ,(eval regex)))) + (list + `(defconst + ,(intern (concat "ledger-" (symbol-name name) "-regexp")) + ,(eval regex)))) (addend 0) last-group) (if (null args) (progn @@ -17,82 +38,82 @@ defs (list `(defconst - ,(intern - (concat "ledger-regex-" (symbol-name name) "-group")) + ,(intern + (concat "ledger-regex-" (symbol-name name) "-group")) 1))) (nconc defs (list `(defconst - ,(intern (concat "ledger-regex-" (symbol-name name) - "-group--count")) + ,(intern (concat "ledger-regex-" (symbol-name name) + "-group--count")) 1))) (nconc defs (list `(defmacro - ,(intern (concat "ledger-regex-" (symbol-name name))) - (&optional string) + ,(intern (concat "ledger-regex-" (symbol-name name))) + (&optional string) ,(format "Return the match string for the %s" name) (match-string ,(intern (concat "ledger-regex-" (symbol-name name) "-group")) string))))) - - (dolist (arg args) - (let (var grouping target) - (if (symbolp arg) - (setq var arg target arg) - (assert (listp arg)) - (if (= 2 (length arg)) - (setq var (car arg) - target (cadr arg)) - (setq var (car arg) - grouping (cadr arg) - target (caddr arg)))) - - (if (and last-group - (not (eq last-group (or grouping target)))) - (incf addend - (symbol-value - (intern-soft (concat "ledger-regex-" - (symbol-name last-group) - "-group--count"))))) - (nconc - defs - (list - `(defconst - ,(intern (concat "ledger-regex-" (symbol-name name) - "-group-" (symbol-name var))) - ,(+ addend - (symbol-value - (intern-soft - (if grouping - (concat "ledger-regex-" (symbol-name grouping) - "-group-" (symbol-name target)) - (concat "ledger-regex-" (symbol-name target) - "-group")))))))) - (nconc - defs - (list - `(defmacro - ,(intern (concat "ledger-regex-" (symbol-name name) - "-" (symbol-name var))) - (&optional string) - ,(format "Return the sub-group match for the %s %s." - name var) - (match-string - ,(intern (concat "ledger-regex-" (symbol-name name) - "-group-" (symbol-name var))) - string)))) + + (dolist (arg args) + (let (var grouping target) + (if (symbolp arg) + (setq var arg target arg) + (assert (listp arg)) + (if (= 2 (length arg)) + (setq var (car arg) + target (cadr arg)) + (setq var (car arg) + grouping (cadr arg) + target (caddr arg)))) + + (if (and last-group + (not (eq last-group (or grouping target)))) + (incf addend + (symbol-value + (intern-soft (concat "ledger-regex-" + (symbol-name last-group) + "-group--count"))))) + (nconc + defs + (list + `(defconst + ,(intern (concat "ledger-regex-" (symbol-name name) + "-group-" (symbol-name var))) + ,(+ addend + (symbol-value + (intern-soft + (if grouping + (concat "ledger-regex-" (symbol-name grouping) + "-group-" (symbol-name target)) + (concat "ledger-regex-" (symbol-name target) + "-group")))))))) + (nconc + defs + (list + `(defmacro + ,(intern (concat "ledger-regex-" (symbol-name name) + "-" (symbol-name var))) + (&optional string) + ,(format "Return the sub-group match for the %s %s." + name var) + (match-string + ,(intern (concat "ledger-regex-" (symbol-name name) + "-group-" (symbol-name var))) + string)))) - (setq last-group (or grouping target)))) + (setq last-group (or grouping target)))) - (nconc defs - (list - `(defconst ,(intern (concat "ledger-regex-" (symbol-name name) - "-group--count")) - ,(length args))))) + (nconc defs + (list + `(defconst ,(intern (concat "ledger-regex-" (symbol-name name) + "-group--count")) + ,(length args))))) (cons 'progn defs))) |