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author | Craig Earls <enderw88@gmail.com> | 2013-07-02 15:37:33 -0700 |
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committer | Craig Earls <enderw88@gmail.com> | 2013-07-02 15:37:33 -0700 |
commit | 63ba45dbaab04722cd59bf610ae77b8334ca213d (patch) | |
tree | bd0b1b22729a38b99d24bc1b1bc490a42e3acf53 /lisp/ldg-commodities.el | |
parent | 5b8817c8e8bb7524734d7f39ab6a170b856c6e90 (diff) | |
download | fork-ledger-63ba45dbaab04722cd59bf610ae77b8334ca213d.tar.gz fork-ledger-63ba45dbaab04722cd59bf610ae77b8334ca213d.tar.bz2 fork-ledger-63ba45dbaab04722cd59bf610ae77b8334ca213d.zip |
Finished changing name to ledger-*
All files and references changed ldg-* to ledger-*
Diffstat (limited to 'lisp/ldg-commodities.el')
-rw-r--r-- | lisp/ldg-commodities.el | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/lisp/ldg-commodities.el b/lisp/ldg-commodities.el deleted file mode 100644 index a7f58f40..00000000 --- a/lisp/ldg-commodities.el +++ /dev/null @@ -1,147 +0,0 @@ -;;; ldg-commodities.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. - -;;; Commentary: -;; Helper functions to deal with commoditized numbers. A commoditized -;; number will be a list of value and string where the string contains -;; the commodity - -;;; Code: - -(require 'ldg-regex) - -(defcustom ledger-reconcile-default-commodity "$" - "The default commodity for use in target calculations in ledger reconcile." - :type 'string - :group 'ledger-reconcile) - -(defcustom ledger-scale 10000 - "The 10 ^ maximum number of digits you would expect to appear in your reports. -This is a cheap way of getting around floating point silliness in subtraction") - -(defun ledger-split-commodity-string (str) - "Split a commoditized string, STR, into two parts. -Returns a list with (value commodity)." - (let ((number-regex (if (assoc "decimal-comma" ledger-environment-alist) - ledger-amount-decimal-comma-regex - ledger-amount-decimal-period-regex))) - (if (> (length str) 0) - (with-temp-buffer - (insert str) - (goto-char (point-min)) - (cond - ((re-search-forward "\"\\(.*\\)\"" nil t) ; look for quoted commodities - (let ((com (delete-and-extract-region - (match-beginning 1) - (match-end 1)))) - (if (re-search-forward - number-regex nil t) - (list - (ledger-string-to-number - (delete-and-extract-region (match-beginning 0) (match-end 0))) - com)))) - ((re-search-forward number-regex nil t) - ;; found a number in the current locale, return it in the - ;; car. Anything left over is annotation, the first - ;; thing should be the commodity, separated by - ;; whitespace, return it in the cdr. I can't think of - ;; any counterexamples - (list - (ledger-string-to-number - (delete-and-extract-region (match-beginning 0) (match-end 0))) - (nth 0 (split-string (buffer-substring-no-properties (point-min) (point-max)))))) - ((re-search-forward "0" nil t) - ;; couldn't find a decimal number, look for a single 0, - ;; indicating account with zero balance - (list 0 ledger-reconcile-default-commodity)))) - ;; nothing found, return 0 - (list 0 ledger-reconcile-default-commodity)))) - -(defun ledger-string-balance-to-commoditized-amount (str) - "Return a commoditized amount (val, 'comm') from STR." - ; break any balances with multi commodities into a list - (mapcar #'(lambda (st) - (ledger-split-commodity-string st)) - (split-string str "[\n\r]"))) - -(defun -commodity (c1 c2) - "Subtract C2 from C1, ensuring their commodities match." - (if (string= (cadr c1) (cadr c2)) - ; the scaling below is to get around inexact subtraction results where, for example - ; 1.23 - 4.56 = -3.3299999999999996 instead of -3.33 - (list (/ (- (* ledger-scale (car c1)) (* ledger-scale (car c2))) ledger-scale) (cadr c1)) - (error "Can't subtract different commodities %S from %S" c2 c1))) - -(defun +commodity (c1 c2) - "Add C1 and C2, ensuring their commodities match." - (if (string= (cadr c1) (cadr c2)) - (list (+ (car c1) (car c2)) (cadr c1)) - (error "Can't add different commodities, %S to %S" c1 c2))) - -(defun ledger-strip (str char) - (let (new-str) - (concat (dolist (ch (append str nil) new-str) - (unless (= ch char) - (setq new-str (append new-str (list ch)))))))) - -(defun ledger-string-to-number (str &optional decimal-comma) - "improve builtin string-to-number by handling internationalization, and return nil if number can't be parsed" - (let ((nstr (if (or decimal-comma - (assoc "decimal-comma" ledger-environment-alist)) - (ledger-strip str ?.) - (ledger-strip str ?,)))) - (while (string-match "," nstr) ;if there is a comma now, it is a thousands separator - (setq nstr (replace-match "." nil nil nstr))) - (string-to-number nstr))) - -(defun ledger-number-to-string (n &optional decimal-comma) - (let ((str (number-to-string n))) - (if (or decimal-comma - (assoc "decimal-comma" ledger-environment-alist)) - (while (string-match "\\." str) - (setq str (replace-match "," nil nil str))) - str))) - -(defun ledger-commodity-to-string (c1) - "Return string representing C1. -Single character commodities are placed ahead of the value, -longer ones are after the value." - (let ((str (ledger-number-to-string (car c1))) - (commodity (cadr c1))) - (if (> (length commodity) 1) - (concat str " " commodity) - (concat commodity " " str)))) - -(defun ledger-read-commodity-string (prompt) - (let ((str (read-from-minibuffer - (concat prompt " (" ledger-reconcile-default-commodity "): "))) - comm) - (if (and (> (length str) 0) - (ledger-split-commodity-string str)) - (progn - (setq comm (ledger-split-commodity-string str)) - (if (cadr comm) - comm - (list (car comm) ledger-reconcile-default-commodity)))))) - -(provide 'ldg-commodities) - -;;; ldg-commodities.el ends here |