6315c60e43
ledger-report-save would fail if you entered a new report with a name. It wouldn't save the customization to the disk, and if you tried to save manually it would complain about an identical command.
527 lines
21 KiB
EmacsLisp
527 lines
21 KiB
EmacsLisp
;;; ldg-report.el --- Helper code for use with the "ledger" command-line tool
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;; Copyright (C) 2003-2013 John Wiegley (johnw AT gnu DOT org)
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;; This file is not part of GNU Emacs.
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;; This is free software; you can redistribute it and/or modify it under
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;; the terms of the GNU General Public License as published by the Free
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;; Software Foundation; either version 2, or (at your option) any later
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;; version.
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;;
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;; This is distributed in the hope that it will be useful, but WITHOUT
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;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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;; for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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;; MA 02111-1307, USA.
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(eval-when-compile
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(require 'cl))
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(defcustom ledger-reports
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'(("bal" "ledger -f %(ledger-file) bal")
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("reg" "ledger -f %(ledger-file) reg")
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("payee" "ledger -f %(ledger-file) reg -- %(payee)")
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("account" "ledger -f %(ledger-file) reg %(account)"))
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"Definition of reports to run.
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Each element has the form (NAME CMDLINE). The command line can
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contain format specifiers that are replaced with context sensitive
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information. Format specifiers have the format '%(<name>)' where
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<name> is an identifier for the information to be replaced. The
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`ledger-report-format-specifiers' alist variable contains a mapping
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from format specifier identifier to a lisp function that implements
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the substitution. See the documentation of the individual functions
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in that variable for more information on the behavior of each
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specifier."
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:type '(repeat (list (string :tag "Report Name")
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(string :tag "Command Line")))
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:group 'ledger)
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(defcustom ledger-report-format-specifiers
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'(("ledger-file" . ledger-report-ledger-file-format-specifier)
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("payee" . ledger-report-payee-format-specifier)
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("account" . ledger-report-account-format-specifier))
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"Alist mapping ledger report format specifiers to implementing functions
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The function is called with no parameters and expected to return the
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text that should replace the format specifier."
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:type 'alist
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:group 'ledger)
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;;(define-key map [(control ?c) (control ?o) (control ?r)] 'ledger-report)
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;;(define-key map [(control ?c) (control ?o) (control ?g)] 'ledger-report-goto)
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;;(define-key map [(control ?c) (control ?o) (control ?a)] 'ledger-report-redo)
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;;(define-key map [(control ?c) (control ?o) (control ?s)] 'ledger-report-save)
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;;(define-key map [(control ?c) (control ?o) (control ?e)] 'ledger-report-edit)
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;;(define-key map [(control ?c) (control ?o) (control ?k)] 'ledger-report-kill)
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;; Ledger report mode
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(defvar ledger-report-buffer-name "*Ledger Report*")
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(defvar ledger-report-name nil)
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(defvar ledger-report-cmd nil)
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(defvar ledger-report-name-prompt-history nil)
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(defvar ledger-report-cmd-prompt-history nil)
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(defvar ledger-original-window-cfg nil)
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(defvar ledger-report-saved nil)
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(defvar ledger-report-mode-abbrev-table)
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(define-derived-mode ledger-report-mode text-mode "Ledger-Report"
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"A mode for viewing ledger reports."
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(let ((map (make-sparse-keymap)))
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(define-key map [? ] 'scroll-up)
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(define-key map [backspace] 'scroll-down)
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(define-key map [?r] 'ledger-report-redo)
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(define-key map [?s] 'ledger-report-save)
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(define-key map [?k] 'ledger-report-kill)
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(define-key map [?e] 'ledger-report-edit)
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(define-key map [?q] 'ledger-report-quit)
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(define-key map [(control ?c) (control ?l) (control ?r)]
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'ledger-report-redo)
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(define-key map [(control ?c) (control ?l) (control ?S)]
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'ledger-report-save)
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(define-key map [(control ?c) (control ?l) (control ?k)]
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'ledger-report-kill)
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(define-key map [(control ?c) (control ?l) (control ?e)]
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'ledger-report-edit)
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(define-key map [(control ?c) (control ?c)] 'ledger-report-visit-source)
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(define-key map [menu-bar] (make-sparse-keymap "ldg-rep"))
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(define-key map [menu-bar ldg-rep] (cons "Reports" map))
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(define-key map [menu-bar ldg-rep lrq] '("Quit" . ledger-report-quit))
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(define-key map [menu-bar ldg-rep s2] '("--"))
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(define-key map [menu-bar ldg-rep lrd] '("Scroll Down" . scroll-down))
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(define-key map [menu-bar ldg-rep lru] '("Scroll Up" . scroll-up))
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(define-key map [menu-bar ldg-rep s1] '("--"))
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(define-key map [menu-bar ldg-rep lrk] '("Kill Report" . ledger-report-kill))
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(define-key map [menu-bar ldg-rep lrr] '("Re-run Report" . ledger-report-redo))
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(define-key map [menu-bar ldg-rep lre] '("Edit Report" . ledger-report-edit))
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(define-key map [menu-bar ldg-rep lrs] '("Save Report" . ledger-report-save))
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(use-local-map map)))
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(defun ledger-report-read-name ()
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"Read the name of a ledger report to use, with completion.
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The empty string and unknown names are allowed."
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(completing-read "Report name: "
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ledger-reports nil nil nil
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'ledger-report-name-prompt-history nil))
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(defun ledger-report (report-name edit)
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"Run a user-specified report from `ledger-reports'.
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Prompts the user for the name of the report to run. If no name is
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entered, the user will be prompted for a command line to run. The
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command line specified or associated with the selected report name
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is run and the output is made available in another buffer for viewing.
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If a prefix argument is given and the user selects a valid report
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name, the user is prompted with the corresponding command line for
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editing before the command is run.
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The output buffer will be in `ledger-report-mode', which defines
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commands for saving a new named report based on the command line
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used to generate the buffer, navigating the buffer, etc."
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(interactive
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(progn
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(when (and (buffer-modified-p)
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(y-or-n-p "Buffer modified, save it? "))
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(save-buffer))
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(let ((rname (ledger-report-read-name))
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(edit (not (null current-prefix-arg))))
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(list rname edit))))
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(let ((buf (current-buffer))
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(rbuf (get-buffer ledger-report-buffer-name))
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(wcfg (current-window-configuration)))
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(if rbuf
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(kill-buffer rbuf))
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(with-current-buffer
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(pop-to-buffer (get-buffer-create ledger-report-buffer-name))
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(ledger-report-mode)
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(set (make-local-variable 'ledger-report-saved) nil)
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(set (make-local-variable 'ledger-buf) buf)
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(set (make-local-variable 'ledger-report-name) report-name)
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(set (make-local-variable 'ledger-original-window-cfg) wcfg)
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(ledger-do-report (ledger-report-cmd report-name edit))
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(shrink-window-if-larger-than-buffer)
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(set-buffer-modified-p nil)
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(setq buffer-read-only t)
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(message "q to quit; r to redo; e to edit; k to kill; s to save; SPC and DEL to scroll"))))
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(defun string-empty-p (s)
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"Check for the empty string."
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(string-equal "" s))
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(defun ledger-report-name-exists (name)
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"Check to see if the given report name exists.
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If name exists, returns the object naming the report, otherwise returns nil."
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(unless (string-empty-p name)
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(car (assoc name ledger-reports))))
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(defun ledger-reports-add (name cmd)
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"Add a new report to `ledger-reports'."
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(setq ledger-reports (cons (list name cmd) ledger-reports)))
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(defun ledger-reports-custom-save ()
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"Save the `ledger-reports' variable using the customize framework."
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(customize-save-variable 'ledger-reports ledger-reports))
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(defun ledger-report-read-command (report-cmd)
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"Read the command line to create a report."
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(read-from-minibuffer "Report command line: "
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(if (null report-cmd) "ledger " report-cmd)
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nil nil 'ledger-report-cmd-prompt-history))
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(defun ledger-report-ledger-file-format-specifier ()
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"Substitute the full path to master or current ledger file
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The master file name is determined by the ledger-master-file buffer-local
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variable which can be set using file variables. If it is set, it is used,
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otherwise the current buffer file is used."
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(ledger-master-file))
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;; General helper functions
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(defvar ledger-master-file nil)
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(defun ledger-master-file ()
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"Return the master file for a ledger file.
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The master file is either the file for the current ledger buffer or the
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file specified by the buffer-local variable ledger-master-file. Typically
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this variable would be set in a file local variable comment block at the
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end of a ledger file which is included in some other file."
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(if ledger-master-file
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(expand-file-name ledger-master-file)
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(buffer-file-name)))
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(defun ledger-read-string-with-default (prompt default)
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(let ((default-prompt (concat prompt
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(if default
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(concat " (" default "): ")
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": "))))
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(read-string default-prompt nil nil default)))
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(defun ledger-report-payee-format-specifier ()
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"Substitute a payee name
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The user is prompted to enter a payee and that is substitued. If
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point is in an entry, the payee for that entry is used as the
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default."
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;; It is intended completion should be available on existing
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;; payees, but the list of possible completions needs to be
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;; developed to allow this.
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(ledger-read-string-with-default "Payee" (regexp-quote (ledger-xact-payee))))
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(defun ledger-report-account-format-specifier ()
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"Substitute an account name
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The user is prompted to enter an account name, which can be any
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regular expression identifying an account. If point is on an account
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transaction line for an entry, the full account name on that line is
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the default."
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;; It is intended completion should be available on existing account
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;; names, but it remains to be implemented.
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(let* ((context (ledger-context-at-point))
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(default
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(if (eq (ledger-context-line-type context) 'acct-transaction)
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(regexp-quote (ledger-context-field-value context 'account))
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nil)))
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(ledger-read-string-with-default "Account" default)))
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(defun ledger-report-expand-format-specifiers (report-cmd)
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(let ((expanded-cmd report-cmd))
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(while (string-match "%(\\([^)]*\\))" expanded-cmd)
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(let* ((specifier (match-string 1 expanded-cmd))
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(f (cdr (assoc specifier ledger-report-format-specifiers))))
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(if f
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(setq expanded-cmd (replace-match
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(save-match-data
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(with-current-buffer ledger-buf
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(shell-quote-argument (funcall f))))
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t t expanded-cmd))
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(progn
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(set-window-configuration ledger-original-window-cfg)
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(error "Invalid ledger report format specifier '%s'" specifier)))))
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expanded-cmd))
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(defun ledger-report-cmd (report-name edit)
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"Get the command line to run the report."
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(let ((report-cmd (car (cdr (assoc report-name ledger-reports)))))
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;; logic for substitution goes here
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(when (or (null report-cmd) edit)
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(setq report-cmd (ledger-report-read-command report-cmd))
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(setq ledger-report-saved nil)) ;; this is a new report, or edited report
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(setq report-cmd (ledger-report-expand-format-specifiers report-cmd))
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(set (make-local-variable 'ledger-report-cmd) report-cmd)
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(or (string-empty-p report-name)
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(ledger-report-name-exists report-name)
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(progn
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(ledger-reports-add report-name report-cmd)
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(ledger-reports-custom-save)))
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report-cmd))
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(defun ledger-do-report (cmd)
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"Run a report command line."
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(goto-char (point-min))
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(insert (format "Report: %s\n" ledger-report-name)
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(format "Command: %s\n" cmd)
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(make-string (- (window-width) 1) ?=)
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"\n\n")
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(let ((data-pos (point))
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(register-report (string-match " reg\\(ister\\)? " cmd))
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files-in-report)
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(shell-command
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(if register-report
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(concat cmd " --prepend-format='%(filename):%(beg_line):'")
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cmd) t nil)
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(when register-report
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(goto-char data-pos)
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(while (re-search-forward "^\\([^:]+\\)?:\\([0-9]+\\)?:" nil t)
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(let ((file (match-string 1))
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(line (string-to-number (match-string 2))))
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(delete-region (match-beginning 0) (match-end 0))
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(set-text-properties (line-beginning-position) (line-end-position)
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(list 'ledger-source (cons file (save-window-excursion
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(save-excursion
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(find-file file)
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(widen)
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(goto-char (point-min))
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(forward-line (1- line))
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(point-marker))))))
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(end-of-line))))
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(goto-char data-pos)))
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(defun ledger-report-visit-source ()
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(interactive)
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(let ((prop (get-text-property (point) 'ledger-source)))
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(destructuring-bind (file . line-or-marker) prop
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(find-file-other-window file)
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(widen)
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(if (markerp line-or-marker)
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(goto-char line-or-marker)
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(goto-char (point-min))
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(forward-line (1- line-or-marker))
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(re-search-backward "^[0-9]+")
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(beginning-of-line)
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(let ((start-of-txn (point)))
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(forward-paragraph)
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(narrow-to-region start-of-txn (point))
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(backward-paragraph))))))
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(defun ledger-report-goto ()
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"Goto the ledger report buffer."
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(interactive)
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(let ((rbuf (get-buffer ledger-report-buffer-name)))
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(if (not rbuf)
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(error "There is no ledger report buffer"))
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(pop-to-buffer rbuf)
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(shrink-window-if-larger-than-buffer)))
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(defun ledger-report-redo ()
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"Redo the report in the current ledger report buffer."
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(interactive)
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(ledger-report-goto)
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(setq buffer-read-only nil)
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(erase-buffer)
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(ledger-do-report ledger-report-cmd)
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(setq buffer-read-only nil))
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(defun ledger-report-quit ()
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"Quit the ledger report buffer by burying it."
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(interactive)
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(ledger-report-goto)
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(set-window-configuration ledger-original-window-cfg)
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(bury-buffer (get-buffer ledger-report-buffer-name)))
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(defun ledger-report-kill ()
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"Kill the ledger report buffer."
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(interactive)
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(ledger-report-quit)
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(kill-buffer (get-buffer ledger-report-buffer-name)))
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(defun ledger-report-edit ()
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"Edit the defined ledger reports."
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(interactive)
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(customize-variable 'ledger-reports))
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(defun ledger-report-read-new-name ()
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"Read the name for a new report from the minibuffer."
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(let ((name ""))
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(while (string-empty-p name)
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(setq name (read-from-minibuffer "Report name: " nil nil nil
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'ledger-report-name-prompt-history)))
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name))
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(defun ledger-report-save ()
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"Save the current report command line as a named report."
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(interactive)
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(ledger-report-goto)
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(let (existing-name)
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(when (string-empty-p ledger-report-name)
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(setq ledger-report-name (ledger-report-read-new-name)))
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(if (setq existing-name (ledger-report-name-exists ledger-report-name))
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(cond ((y-or-n-p (format "Overwrite existing report named '%s' "
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ledger-report-name))
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(if (string-equal
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ledger-report-cmd
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(car (cdr (assq existing-name ledger-reports))))
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(message "Nothing to save. Current command is identical to existing saved one")
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(progn
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(setq ledger-reports
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(assq-delete-all existing-name ledger-reports))
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(ledger-reports-add ledger-report-name ledger-report-cmd)
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(ledger-reports-custom-save))))
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(t
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(progn
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(setq ledger-report-name (ledger-report-read-new-name))
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(ledger-reports-add ledger-report-name ledger-report-cmd)
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(ledger-reports-custom-save)))))))
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(defconst ledger-line-config
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'((entry
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(("^\\(\\([0-9][0-9][0-9][0-9]/\\)?[01]?[0-9]/[0123]?[0-9]\\)[ \t]+\\(\\([!*]\\)[ \t]\\)?[ \t]*\\((\\(.*\\))\\)?[ \t]*\\(.*?\\)[ \t]*;\\(.*\\)[ \t]*$"
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(date nil status nil nil code payee comment))
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("^\\(\\([0-9][0-9][0-9][0-9]/\\)?[01]?[0-9]/[0123]?[0-9]\\)[ \t]+\\(\\([!*]\\)[ \t]\\)?[ \t]*\\((\\(.*\\))\\)?[ \t]*\\(.*\\)[ \t]*$"
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(date nil status nil nil code payee))))
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(acct-transaction
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(("\\(^[ \t]+\\)\\(.*?\\)[ \t]+\\([$]\\)\\(-?[0-9]*\\(\\.[0-9]*\\)?\\)[ \t]*;[ \t]*\\(.*?\\)[ \t]*$"
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(indent account commodity amount nil comment))
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("\\(^[ \t]+\\)\\(.*?\\)[ \t]+\\([$]\\)\\(-?[0-9]*\\(\\.[0-9]*\\)?\\)[ \t]*$"
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(indent account commodity amount nil))
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("\\(^[ \t]+\\)\\(.*?\\)[ \t]+\\(-?[0-9]+\\(\\.[0-9]*\\)?\\)[ \t]+\\(.*?\\)[ \t]*;[ \t]*\\(.*?\\)[ \t]*$"
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(indent account amount nil commodity comment))
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("\\(^[ \t]+\\)\\(.*?\\)[ \t]+\\(-?[0-9]+\\(\\.[0-9]*\\)?\\)[ \t]+\\(.*?\\)[ \t]*$"
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(indent account amount nil commodity))
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("\\(^[ \t]+\\)\\(.*?\\)[ \t]+\\(-?\\(\\.[0-9]*\\)\\)[ \t]+\\(.*?\\)[ \t]*;[ \t]*\\(.*?\\)[ \t]*$"
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(indent account amount nil commodity comment))
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("\\(^[ \t]+\\)\\(.*?\\)[ \t]+\\(-?\\(\\.[0-9]*\\)\\)[ \t]+\\(.*?\\)[ \t]*$"
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(indent account amount nil commodity))
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("\\(^[ \t]+\\)\\(.*?\\)[ \t]*;[ \t]*\\(.*?\\)[ \t]*$"
|
|
(indent account comment))
|
|
("\\(^[ \t]+\\)\\(.*?\\)[ \t]*$"
|
|
(indent account))))))
|
|
|
|
(defun ledger-extract-context-info (line-type pos)
|
|
"Get context info for current line.
|
|
|
|
Assumes point is at beginning of line, and the pos argument specifies
|
|
where the \"users\" point was."
|
|
(let ((linfo (assoc line-type ledger-line-config))
|
|
found field fields)
|
|
(dolist (re-info (nth 1 linfo))
|
|
(let ((re (nth 0 re-info))
|
|
(names (nth 1 re-info)))
|
|
(unless found
|
|
(when (looking-at re)
|
|
(setq found t)
|
|
(dotimes (i (length names))
|
|
(when (nth i names)
|
|
(setq fields (append fields
|
|
(list
|
|
(list (nth i names)
|
|
(match-string-no-properties (1+ i))
|
|
(match-beginning (1+ i))))))))
|
|
(dolist (f fields)
|
|
(and (nth 1 f)
|
|
(>= pos (nth 2 f))
|
|
(setq field (nth 0 f))))))))
|
|
(list line-type field fields)))
|
|
|
|
(defun ledger-context-at-point ()
|
|
"Return a list describing the context around point.
|
|
|
|
The contents of the list are the line type, the name of the field
|
|
point containing point, and for selected line types, the content of
|
|
the fields in the line in a association list."
|
|
(let ((pos (point)))
|
|
(save-excursion
|
|
(beginning-of-line)
|
|
(let ((first-char (char-after)))
|
|
(cond ((equal (point) (line-end-position))
|
|
'(empty-line nil nil))
|
|
((memq first-char '(?\ ?\t))
|
|
(ledger-extract-context-info 'acct-transaction pos))
|
|
((memq first-char '(?0 ?1 ?2 ?3 ?4 ?5 ?6 ?7 ?8 ?9))
|
|
(ledger-extract-context-info 'entry pos))
|
|
((equal first-char ?\=)
|
|
'(automated-entry nil nil))
|
|
((equal first-char ?\~)
|
|
'(period-entry nil nil))
|
|
((equal first-char ?\!)
|
|
'(command-directive))
|
|
((equal first-char ?\;)
|
|
'(comment nil nil))
|
|
((equal first-char ?Y)
|
|
'(default-year nil nil))
|
|
((equal first-char ?P)
|
|
'(commodity-price nil nil))
|
|
((equal first-char ?N)
|
|
'(price-ignored-commodity nil nil))
|
|
((equal first-char ?D)
|
|
'(default-commodity nil nil))
|
|
((equal first-char ?C)
|
|
'(commodity-conversion nil nil))
|
|
((equal first-char ?i)
|
|
'(timeclock-i nil nil))
|
|
((equal first-char ?o)
|
|
'(timeclock-o nil nil))
|
|
((equal first-char ?b)
|
|
'(timeclock-b nil nil))
|
|
((equal first-char ?h)
|
|
'(timeclock-h nil nil))
|
|
(t
|
|
'(unknown nil nil)))))))
|
|
|
|
(defun ledger-context-other-line (offset)
|
|
"Return a list describing context of line offset for existing position.
|
|
|
|
Offset can be positive or negative. If run out of buffer before reaching
|
|
specified line, returns nil."
|
|
(save-excursion
|
|
(let ((left (forward-line offset)))
|
|
(if (not (equal left 0))
|
|
nil
|
|
(ledger-context-at-point)))))
|
|
|
|
(defun ledger-context-line-type (context-info)
|
|
(nth 0 context-info))
|
|
|
|
(defun ledger-context-current-field (context-info)
|
|
(nth 1 context-info))
|
|
|
|
(defun ledger-context-field-info (context-info field-name)
|
|
(assoc field-name (nth 2 context-info)))
|
|
|
|
(defun ledger-context-field-present-p (context-info field-name)
|
|
(not (null (ledger-context-field-info context-info field-name))))
|
|
|
|
(defun ledger-context-field-value (context-info field-name)
|
|
(nth 1 (ledger-context-field-info context-info field-name)))
|
|
|
|
(defun ledger-context-field-position (context-info field-name)
|
|
(nth 2 (ledger-context-field-info context-info field-name)))
|
|
|
|
(defun ledger-context-field-end-position (context-info field-name)
|
|
(+ (ledger-context-field-position context-info field-name)
|
|
(length (ledger-context-field-value context-info field-name))))
|
|
|
|
(defun ledger-context-goto-field-start (context-info field-name)
|
|
(goto-char (ledger-context-field-position context-info field-name)))
|
|
|
|
(defun ledger-context-goto-field-end (context-info field-name)
|
|
(goto-char (ledger-context-field-end-position context-info field-name)))
|
|
|
|
(provide 'ldg-report)
|