/usr/share/emacs/site-lisp/elpa-src/ledger-3.1.2/ledger-navigate.el is in elpa-ledger 3.1.2~pre1+g3a00e1c+dfsg1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 | ;;; ledger-navigate.el --- Provide navigation services through the ledger buffer.
;; Copyright (C) 2014-2015 Craig Earls (enderw88 AT gmail DOT com)
;; 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., 51 Franklin Street, Fifth Floor, Boston,
;; MA 02110-1301 USA.
;;; Commentary:
;;
;;; Code:
(require 'ledger-regex)
(require 'ledger-context)
(defun ledger-navigate-next-xact ()
"Move point to beginning of next xact."
;; make sure we actually move to the next xact, even if we are the
;; beginning of one now.
(if (looking-at ledger-payee-any-status-regex)
(forward-line))
(if (re-search-forward ledger-payee-any-status-regex nil t)
(goto-char (match-beginning 0))
(goto-char (point-max))))
(defun ledger-navigate-start-xact-or-directive-p ()
"Return t if at the beginning of an empty or all-whitespace line."
(not (looking-at "[ \t]\\|\\(^$\\)")))
(defun ledger-navigate-next-xact-or-directive ()
"Move to the beginning of the next xact or directive."
(interactive)
(beginning-of-line)
(if (ledger-navigate-start-xact-or-directive-p) ; if we are the start of an xact, move forward to the next xact
(progn
(forward-line)
(if (not (ledger-navigate-start-xact-or-directive-p)) ; we have moved forward and are not at another xact, recurse forward
(ledger-navigate-next-xact-or-directive)))
(while (not (or (eobp) ; we didn't start off at the beginning of an xact
(ledger-navigate-start-xact-or-directive-p)))
(forward-line))))
(defun ledger-navigate-prev-xact-or-directive ()
"Move point to beginning of previous xact."
(interactive)
(let ((context (car (ledger-context-at-point))))
(when (equal context 'acct-transaction)
(ledger-navigate-beginning-of-xact))
(beginning-of-line)
(re-search-backward "^[[:graph:]]" nil t)))
(defun ledger-navigate-beginning-of-xact ()
"Move point to the beginning of the current xact."
(interactive)
;; need to start at the beginning of a line incase we are in the first line of an xact already.
(beginning-of-line)
(let ((sreg (concat "^\\(=\\|~\\|" ledger-iso-date-regexp "\\)")))
(unless (looking-at sreg)
(re-search-backward sreg nil t)
(beginning-of-line)))
(point))
(defun ledger-navigate-end-of-xact ()
"Move point to end of xact."
(interactive)
(ledger-navigate-next-xact-or-directive)
(re-search-backward ".$")
(end-of-line)
(point))
(defun ledger-navigate-to-line (line-number)
"Rapidly move point to line LINE-NUMBER."
(goto-char (point-min))
(forward-line (1- line-number)))
(defun ledger-navigate-find-xact-extents (pos)
"Return list containing point for beginning and end of xact containing POS.
Requires empty line separating xacts."
(interactive "d")
(save-excursion
(goto-char pos)
(list (ledger-navigate-beginning-of-xact)
(ledger-navigate-end-of-xact))))
(defun ledger-navigate-find-directive-extents (pos)
"Return the extents of the directive at POS."
(goto-char pos)
(let ((begin (progn (beginning-of-line)
(point)))
(end (progn (end-of-line)
(+ 1 (point)))))
;; handle block comments here
(beginning-of-line)
(if (looking-at " *;")
(progn
(while (and (looking-at " *;")
(> (point) (point-min)))
(forward-line -1))
;; We are either at the beginning of the buffer, or we found
;; a line outside the comment. If we are not at the
;; beginning of the buffer then we need to move forward a
;; line.
(if (> (point) (point-min))
(progn (forward-line 1)
(beginning-of-line)))
(setq begin (point))
(goto-char pos)
(beginning-of-line)
(while (and (looking-at " *;")
(< (point) (point-max)))
(forward-line 1))
(setq end (point))))
(list begin end)))
(defun ledger-navigate-block-comment (pos)
"Move past the block comment at POS, and return its extents."
(interactive "d")
(goto-char pos)
(let ((begin (progn (beginning-of-line)
(point)))
(end (progn (end-of-line)
(point))))
;; handle block comments here
(beginning-of-line)
(if (looking-at " *;")
(progn
(while (and (looking-at " *;")
(> (point) (point-min)))
(forward-line -1))
(setq begin (point))
(goto-char pos)
(beginning-of-line)
(while (and (looking-at " *;")
(< (point) (point-max)))
(forward-line 1))
(setq end (point))))
(list begin end)))
(defun ledger-navigate-find-element-extents (pos)
"Return list containing beginning and end of the entity surrounding POS."
(interactive "d")
(save-excursion
(goto-char pos)
(beginning-of-line)
(if (looking-at "[ =~0-9\\[]")
(ledger-navigate-find-xact-extents pos)
(ledger-navigate-find-directive-extents pos))))
(provide 'ledger-navigate)
;;; ledger-navigate.el ends here
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