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1949 lines
76 KiB
EmacsLisp
1949 lines
76 KiB
EmacsLisp
;;; mh-search --- MH-Search mode
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;; Copyright (C) 1993, 1995, 2001-2019 Free Software Foundation, Inc.
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;; Author: Indexed search by Satyaki Das <satyaki@theforce.stanford.edu>
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;; Maintainer: Bill Wohler <wohler@newt.com>
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;; Keywords: mail
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;; See: mh-e.el
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Mode used to compose search criteria.
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;; (1) The following search engines are supported:
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;; swish++
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;; swish-e
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;; mairix
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;; namazu
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;; pick
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;; grep
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;; (2) To use this package, you first have to build an index. Please
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;; read the documentation for `mh-search' to get started. That
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;; documentation will direct you to the specific instructions for
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;; your particular searcher.
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;;; Change Log:
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;;; Code:
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(require 'mh-e)
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(require 'gnus-util)
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(require 'imenu)
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(defvar mh-searcher nil
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"Cached value of chosen search program.")
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(defvar mh-search-function nil
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"Function which executes the search program.")
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(defvar mh-search-next-result-function nil
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"Function to parse the next line of output.
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Expected to return a list of three strings: name of the folder,
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message number, and optionally the match.")
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(defvar mh-search-regexp-builder nil
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"Function used to construct search regexp.")
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(defvar mh-index-folder "+mhe-index"
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"Folder that contains the folders resulting from the index searches.")
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(defvar mh-flists-results-folder "sequence"
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"Subfolder for `mh-index-folder' where flists output is placed.")
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(defvar mh-flists-sequence)
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(defvar mh-flists-called-flag nil)
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;;; MH-Folder Commands
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;;;###mh-autoload
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(defun mh-search (folder search-regexp
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&optional redo-search-flag window-config)
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"Search your MH mail.
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This command helps you find messages in your entire corpus of
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mail. You can search for messages to or from a particular person
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or about a particular subject. In fact, you can also search for
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messages containing selected strings in any arbitrary header
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field or any string found within the messages.
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Out of the box, MH-E uses \"pick\" to find messages. With a
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little extra effort, you can set an indexing program which
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rewards you with extremely quick results. The drawback is that
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sometimes the index does not contain the words you're looking
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for. You can still use \"pick\" in these situations.
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You are prompted for the FOLDER to search. This can be \"all\" to
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search all folders. Note that the search works recursively on the
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listed folder.
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Next, an MH-Search buffer appears where you can enter search
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criteria SEARCH-REGEXP.
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From:
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To:
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Cc:
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Date:
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Subject:
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--------
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Edit this template by entering your search criteria in an
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appropriate header field that is already there, or create a new
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field yourself. If the string you're looking for could be
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anywhere in a message, then place the string underneath the row
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of dashes.
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As an example, let's say that we want to find messages from
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Ginnean about horseback riding in the Kosciusko National
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Park (Australia) during January, 1994. Normally we would start
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with a broad search and narrow it down if necessary to produce a
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manageable amount of data, but we'll cut to the chase and create
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a fairly restrictive set of criteria as follows:\\<mh-search-mode-map>
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From: ginnean
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To:
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Cc:
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Date: Jan 1994
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Subject:
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--------
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horse
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kosciusko
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As with MH-Letter mode, MH-Search provides commands like
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\\[mh-to-field] to help you fill in the blanks.\\<mh-folder-mode-map>
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If you find that you do the same thing over and over when editing
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the search template, you may wish to bind some shortcuts to keys.
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This can be done with the variable `mh-search-mode-hook', which is
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called when \\[mh-search] is run on a new pattern.\\<mh-search-mode-map>
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To perform the search, type \\[mh-index-do-search].
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Sometimes you're searching for text that is either not indexed,
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or hasn't been indexed yet. In this case you can override the
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default method with the pick method by running the command
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\\[mh-pick-do-search].
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The messages that are found are put in a temporary sub-folder of
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\"+mhe-index\" and are displayed in an MH-Folder buffer. This
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buffer is special because it displays messages from multiple
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folders; each set of messages from a given folder has a heading
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with the folder name.\\<mh-folder-mode-map>
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The appearance of the heading can be modified by customizing the
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face `mh-search-folder'. You can jump back and forth between the
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headings using the commands \\[mh-index-next-folder] and
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\\[mh-index-previous-folder].
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In addition, the command \\[mh-index-visit-folder] can be used to
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visit the folder of the message at point. Initially, only the
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messages that matched the search criteria are displayed in the
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folder. While the temporary buffer has its own set of message
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numbers, the actual messages numbers are shown in the visited
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folder. Thus, the command \\[mh-index-visit-folder] is useful to
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find the actual message number of an interesting message, or to
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view surrounding messages with the command \\[mh-rescan-folder].
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Because this folder is temporary, you'll probably get in the
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habit of killing it when you're done with \\[mh-kill-folder].
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You can regenerate the results by running this command with a
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prefix argument REDO-SEARCH-FLAG.
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Note: This command uses an \"X-MHE-Checksum:\" header field to
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cache the MD5 checksum of a message. This means that if an
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incoming message already contains an \"X-MHE-Checksum:\" field,
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that message might not be found by this command. The following
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\"procmail\" recipe avoids this problem by renaming the existing
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header field:
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:0 wf
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| formail -R \"X-MHE-Checksum\" \"X-Old-MHE-Checksum\"
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Configuring Indexed Searches
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The command \\[mh-search] runs the command defined by the option
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`mh-search-program'. The default value is \"Auto-detect\" which
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means that MH-E will automatically choose one of \"swish++\",
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\"swish-e\", \"mairix\", \"namazu\", \"pick\" and \"grep\" in
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that order. If, for example, you have both \"swish++\" and
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\"mairix\" installed and you want to use \"mairix\", then you can
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set this option to \"mairix\".
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The documentation for the following commands describe how to set
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up the various indexing programs to use with MH-E.
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- `mh-swish++-execute-search'
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- `mh-swish-execute-search'
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- `mh-mairix-execute-search'
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- `mh-namazu-execute-search'
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- `mh-pick-execute-search'
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- `mh-grep-execute-search'
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In a program, if FOLDER is \"+\" or nil, then mail in all folders
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are searched. Optional argument WINDOW-CONFIG stores the window
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configuration that will be restored after the user quits the
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folder containing the index search results."
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(interactive
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(list (progn
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(mh-find-path)
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;; Yes, we do want to call mh-search-choose every time in case the
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;; user has switched the searcher manually.
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(unless (mh-search-choose (and current-prefix-arg
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mh-index-previous-search
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(cadr mh-index-previous-search)))
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(error "No search program found"))
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(or (and current-prefix-arg mh-index-sequence-search-flag)
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(and current-prefix-arg (car mh-index-previous-search))
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(mh-prompt-for-folder "Search" "+" nil "all" t)))
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(or (and current-prefix-arg (caddr mh-index-previous-search))
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mh-search-regexp-builder
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(read-string (format "%s regexp: "
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(upcase-initials (symbol-name mh-searcher)))))
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current-prefix-arg
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(if (and (not (and current-prefix-arg
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(caddr mh-index-previous-search)))
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mh-search-regexp-builder)
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(current-window-configuration)
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nil)))
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(cl-block mh-search
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;; Redoing a sequence search?
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(when (and redo-search-flag mh-index-data mh-index-sequence-search-flag
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(not mh-flists-called-flag))
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(let ((mh-flists-called-flag t))
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(apply #'mh-index-sequenced-messages mh-index-previous-search))
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(cl-return-from mh-search))
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;; We have fancy query parsing.
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(when (symbolp search-regexp)
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(mh-search-folder folder window-config)
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(cl-return-from mh-search))
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;; Begin search proper.
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(mh-checksum-choose)
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(let ((result-count 0)
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(old-window-config (or window-config mh-previous-window-config))
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(previous-search mh-index-previous-search)
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(index-folder (format "%s/%s" mh-index-folder
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(mh-index-generate-pretty-name search-regexp))))
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;; Create a new folder for the search results or recreate the old one...
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(if (and redo-search-flag mh-index-previous-search)
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(let ((buffer-name (buffer-name (current-buffer))))
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(mh-process-or-undo-commands buffer-name)
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(save-excursion (mh-exec-cmd-quiet nil "rmf" buffer-name))
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(mh-exec-cmd-quiet nil "folder" "-create" "-fast" buffer-name)
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(setq index-folder buffer-name))
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(setq index-folder (mh-index-new-folder index-folder search-regexp)))
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(let ((folder-path (format "%s%s" mh-user-path (substring folder 1)))
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(folder-results-map (make-hash-table :test #'equal))
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(origin-map (make-hash-table :test #'equal)))
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;; Run search program...
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(message "Executing %s... " mh-searcher)
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(funcall mh-search-function folder-path search-regexp)
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;; Parse searcher output.
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(message "Processing %s output... " mh-searcher)
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(goto-char (point-min))
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(cl-loop for next-result = (funcall mh-search-next-result-function)
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while next-result
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do (unless (eq next-result 'error)
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(unless (gethash (car next-result) folder-results-map)
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(setf (gethash (car next-result) folder-results-map)
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(make-hash-table :test #'equal)))
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(setf (gethash (cadr next-result)
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(gethash (car next-result) folder-results-map))
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t)))
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;; Copy the search results over.
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(maphash #'(lambda (folder msgs)
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(let ((cur (car (mh-translate-range folder "cur")))
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(msgs (sort (cl-loop
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for msg being the hash-keys of msgs
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collect msg)
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#'<)))
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(mh-exec-cmd "refile" msgs "-src" folder
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"-link" index-folder)
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;; Restore cur to old value, that refile changed
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(when cur
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(mh-exec-cmd-quiet nil "mark" folder "-add" "-zero"
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"-sequence"
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"cur" (format "%s" cur)))
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(cl-loop for msg in msgs
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do (cl-incf result-count)
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(setf (gethash result-count origin-map)
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(cons folder msg)))))
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folder-results-map)
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;; Vist the results folder.
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(mh-visit-folder index-folder () (list folder-results-map origin-map))
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(goto-char (point-min))
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(forward-line)
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(mh-update-sequences)
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(mh-recenter nil)
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;; Update the speedbar, if needed.
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(when (mh-speed-flists-active-p)
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(mh-speed-flists t mh-current-folder))
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;; Maintain history.
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(when (or (and redo-search-flag previous-search) window-config)
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(setq mh-previous-window-config old-window-config))
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(setq mh-index-previous-search (list folder mh-searcher search-regexp))
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;; Write out data to disk.
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(unless mh-flists-called-flag (mh-index-write-data))
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(message "%s found %s matches in %s folders"
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(upcase-initials (symbol-name mh-searcher))
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(cl-loop for msg-hash being the hash-values of mh-index-data
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sum (hash-table-count msg-hash))
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(cl-loop for msg-hash being the hash-values of mh-index-data
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count (> (hash-table-count msg-hash) 0)))))))
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;; Shush compiler.
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(mh-do-in-xemacs
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(defvar pick-folder)) ;FIXME: Why?
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(defun mh-search-folder (folder window-config)
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"Search FOLDER for messages matching a pattern.
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In a program, argument WINDOW-CONFIG is the current window
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configuration and is used when the search folder is dismissed."
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(interactive (list (mh-prompt-for-folder "Search" mh-current-folder nil nil t)
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(current-window-configuration)))
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;; FIXME: `pick-folder' is unused!
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(let ((pick-folder (if (equal folder "+") mh-current-folder folder)))
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(switch-to-buffer-other-window "search-pattern")
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(if (or (zerop (buffer-size))
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(not (y-or-n-p "Reuse pattern? ")))
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(mh-make-pick-template)
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(message ""))
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(mh-make-local-vars 'mh-current-folder folder
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'mh-previous-window-config window-config)
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(message "%s" (substitute-command-keys
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(concat "Type \\[mh-index-do-search] to search messages, "
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"\\[mh-pick-do-search] to use pick, "
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"\\[mh-help] for help")))))
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(defun mh-make-pick-template ()
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"Initialize the current buffer with a template for a pick pattern."
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(let ((inhibit-read-only t)) (erase-buffer))
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(insert "From: \n"
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"To: \n"
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"Cc: \n"
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"Date: \n"
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"Subject: \n"
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"---------\n")
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(mh-search-mode)
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(goto-char (point-min))
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(dotimes (i 5)
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(add-text-properties (point) (1+ (point)) '(front-sticky t))
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(add-text-properties (- (mh-line-end-position) 2)
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(1- (mh-line-end-position))
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'(rear-nonsticky t))
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(add-text-properties (point) (1- (mh-line-end-position)) '(read-only t))
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(forward-line))
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(add-text-properties (point) (1+ (point)) '(front-sticky t))
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(add-text-properties (point) (1- (mh-line-end-position)) '(read-only t))
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(goto-char (point-max)))
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;; Sequence Searches
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;;;###mh-autoload
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(defun mh-index-new-messages (folders)
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"Display unseen messages.
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If you use a program such as \"procmail\" to use \"rcvstore\" to file
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your incoming mail automatically, you can display new, unseen,
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messages using this command. All messages in the \"unseen\"
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sequence from the folders in `mh-new-messages-folders' are
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listed.
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With a prefix argument, enter a space-separated list of FOLDERS,
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or nothing to search all folders."
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(interactive
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(list (if current-prefix-arg
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(split-string (read-string "Search folder(s) (default all): "))
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mh-new-messages-folders)))
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(mh-index-sequenced-messages folders mh-unseen-seq))
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;;;###mh-autoload
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(defun mh-index-ticked-messages (folders)
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"Display ticked messages.
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All messages in `mh-tick-seq' from the folders in
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`mh-ticked-messages-folders' are listed.
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With a prefix argument, enter a space-separated list of FOLDERS,
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or nothing to search all folders."
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(interactive
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(list (if current-prefix-arg
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(split-string (read-string "Search folder(s) (default all): "))
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mh-ticked-messages-folders)))
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(mh-index-sequenced-messages folders mh-tick-seq))
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(defvar mh-mairix-folder)
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(defvar mh-flists-search-folders)
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;;;###mh-autoload
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(defun mh-index-sequenced-messages (folders sequence)
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"Display messages in any sequence.
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All messages from the FOLDERS in `mh-new-messages-folders' in the
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SEQUENCE you provide are listed. With a prefix argument, enter a
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space-separated list of folders at the prompt, or nothing to
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search all folders."
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(interactive
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(list (if current-prefix-arg
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(split-string (read-string "Search folder(s) (default all): "))
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mh-new-messages-folders)
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(mh-read-seq-default "Search" nil)))
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(unless sequence (setq sequence mh-unseen-seq))
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(let* ((mh-flists-search-folders folders)
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(mh-flists-sequence sequence)
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(mh-flists-called-flag t)
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(mh-searcher 'flists)
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(mh-search-function 'mh-flists-execute)
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(mh-search-next-result-function 'mh-mairix-next-result)
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(mh-mairix-folder mh-user-path)
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(mh-search-regexp-builder nil)
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(new-folder (format "%s/%s/%s" mh-index-folder
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mh-flists-results-folder sequence))
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(window-config (if (equal new-folder mh-current-folder)
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mh-previous-window-config
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(current-window-configuration)))
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(redo-flag nil)
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message)
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(cond ((buffer-live-p (get-buffer new-folder))
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;; The destination folder is being visited. Trick `mh-search'
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;; into thinking that the folder resulted from a previous search.
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(set-buffer new-folder)
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(setq mh-index-previous-search (list folders mh-searcher sequence))
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(setq redo-flag t))
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((mh-folder-exists-p new-folder)
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;; Folder exists but we don't have it open. That means they are
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;; stale results from an old flists search. Clear it out.
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(mh-exec-cmd-quiet nil "rmf" new-folder)))
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(setq message (mh-search "+" mh-flists-results-folder
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redo-flag window-config)
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mh-index-sequence-search-flag t
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mh-index-previous-search (list folders mh-searcher sequence))
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(mh-index-write-data)
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(when (stringp message) (message "%s" message))))
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(defvar mh-flists-search-folders)
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(defun mh-flists-execute (&rest ignored)
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"Execute flists.
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Search for messages belonging to `mh-flists-sequence' in the
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folders specified by `mh-flists-search-folders'. If
|
||
`mh-recursive-folders-flag' is t, then the folders are searched
|
||
recursively. All arguments are IGNORED."
|
||
(set-buffer (get-buffer-create mh-temp-index-buffer))
|
||
(erase-buffer)
|
||
(unless (executable-find "sh")
|
||
(error "Didn't find sh"))
|
||
(with-temp-buffer
|
||
(let ((seq (symbol-name mh-flists-sequence)))
|
||
(insert "for folder in `" (expand-file-name "flists" mh-progs) " "
|
||
(cond ((eq mh-flists-search-folders t)
|
||
(mh-quote-for-shell mh-inbox))
|
||
((eq mh-flists-search-folders nil) "")
|
||
((listp mh-flists-search-folders)
|
||
(cl-loop for folder in mh-flists-search-folders
|
||
concat
|
||
(concat " " (mh-quote-for-shell folder)))))
|
||
(if mh-recursive-folders-flag " -recurse" "")
|
||
" -sequence " seq " -noshowzero -fast` ; do\n"
|
||
(expand-file-name "mhpath" mh-progs) " \"+$folder\" " seq "\n"
|
||
"done\n"))
|
||
(call-process-region
|
||
(point-min) (point-max) "sh" nil (get-buffer mh-temp-index-buffer))))
|
||
|
||
;; Navigation
|
||
|
||
;;;###mh-autoload
|
||
(defun mh-index-next-folder (&optional backward-flag)
|
||
"Jump to the next folder marker.
|
||
|
||
With non-nil optional argument BACKWARD-FLAG, jump to the previous
|
||
group of results."
|
||
(interactive "P")
|
||
(if (null mh-index-data)
|
||
(message "Only applicable in an MH-E index search buffer")
|
||
(let ((point (point)))
|
||
(forward-line (if backward-flag 0 1))
|
||
(cond ((if backward-flag
|
||
(re-search-backward "^\\+" (point-min) t)
|
||
(re-search-forward "^\\+" (point-max) t))
|
||
(beginning-of-line))
|
||
((and (if backward-flag
|
||
(goto-char (point-max))
|
||
(goto-char (point-min)))
|
||
nil))
|
||
((if backward-flag
|
||
(re-search-backward "^\\+" (point-min) t)
|
||
(re-search-forward "^\\+" (point-max) t))
|
||
(beginning-of-line))
|
||
(t (goto-char point))))))
|
||
|
||
;;;###mh-autoload
|
||
(defun mh-index-previous-folder ()
|
||
"Jump to the previous folder marker."
|
||
(interactive)
|
||
(mh-index-next-folder t))
|
||
|
||
;;;###mh-autoload
|
||
(defun mh-index-visit-folder ()
|
||
"Visit original folder from where the message at point was found."
|
||
(interactive)
|
||
(unless mh-index-data
|
||
(error "Not in an index folder"))
|
||
(let (folder msg)
|
||
(save-excursion
|
||
(cond ((and (bolp) (eolp))
|
||
(ignore-errors (forward-line -1))
|
||
(setq msg (mh-get-msg-num t)))
|
||
((equal (char-after (mh-line-beginning-position)) ?+)
|
||
(setq folder (buffer-substring-no-properties
|
||
(mh-line-beginning-position)
|
||
(mh-line-end-position))))
|
||
(t (setq msg (mh-get-msg-num t)))))
|
||
(when (not folder)
|
||
(setq folder (car (gethash (gethash msg mh-index-msg-checksum-map)
|
||
mh-index-checksum-origin-map))))
|
||
(when (or (not (get-buffer folder))
|
||
(y-or-n-p (format "Reuse buffer displaying %s? " folder)))
|
||
(mh-visit-folder
|
||
folder (cl-loop
|
||
for x being the hash-keys of (gethash folder mh-index-data)
|
||
when (mh-msg-exists-p x folder) collect x)))))
|
||
|
||
|
||
|
||
;;; Search Menu
|
||
|
||
(easy-menu-define
|
||
mh-pick-menu mh-search-mode-map "Menu for MH-E Search"
|
||
'("Search"
|
||
["Perform Search" mh-index-do-search t]
|
||
["Search with pick" mh-pick-do-search t]))
|
||
|
||
|
||
|
||
;;; MH-Search Keys
|
||
|
||
;; If this changes, modify mh-search-mode-help-messages accordingly, below.
|
||
(gnus-define-keys mh-search-mode-map
|
||
"\C-c?" mh-help
|
||
"\C-c\C-c" mh-index-do-search
|
||
"\C-c\C-p" mh-pick-do-search
|
||
"\C-c\C-f\C-b" mh-to-field
|
||
"\C-c\C-f\C-c" mh-to-field
|
||
"\C-c\C-f\C-m" mh-to-field
|
||
"\C-c\C-f\C-s" mh-to-field
|
||
"\C-c\C-f\C-t" mh-to-field
|
||
"\C-c\C-fb" mh-to-field
|
||
"\C-c\C-fc" mh-to-field
|
||
"\C-c\C-fm" mh-to-field
|
||
"\C-c\C-fs" mh-to-field
|
||
"\C-c\C-ft" mh-to-field)
|
||
|
||
|
||
|
||
;;; MH-Search Help Messages
|
||
|
||
;; Group messages logically, more or less.
|
||
(defvar mh-search-mode-help-messages
|
||
'((nil
|
||
"Perform search: \\[mh-index-do-search]\n"
|
||
"Search with pick: \\[mh-pick-do-search]\n\n"
|
||
"Move to a field by typing C-c C-f C-<field>\n"
|
||
"where <field> is the first letter of the desired field\n"
|
||
"(except for From: which uses \"m\")."))
|
||
"Key binding cheat sheet.
|
||
|
||
This is an associative array which is used to show the most common
|
||
commands. The key is a prefix char. The value is one or more strings
|
||
which are concatenated together and displayed in the minibuffer if ?
|
||
is pressed after the prefix character. The special key nil is used to
|
||
display the non-prefixed commands.
|
||
|
||
The substitutions described in `substitute-command-keys' are performed
|
||
as well.")
|
||
|
||
|
||
|
||
;;; MH-Search Mode
|
||
|
||
(put 'mh-search-mode 'mode-class 'special)
|
||
|
||
(define-derived-mode mh-search-mode fundamental-mode "MH-Search"
|
||
"Mode for creating search templates in MH-E.\\<mh-search-mode-map>
|
||
|
||
Edit this template by entering your search criteria in an
|
||
appropriate header field that is already there, or create a new
|
||
field yourself. If the string you're looking for could be
|
||
anywhere in a message, then place the string underneath the row
|
||
of dashes.
|
||
|
||
To perform the search, type \\[mh-index-do-search].
|
||
|
||
Sometimes you're searching for text that is either not indexed,
|
||
or hasn't been indexed yet. In this case you can override the
|
||
default method with the pick method by running the command
|
||
\\[mh-pick-do-search].
|
||
|
||
The hook `mh-search-mode-hook' is called upon entry to this mode.
|
||
|
||
\\{mh-search-mode-map}"
|
||
|
||
(easy-menu-add mh-pick-menu)
|
||
(mh-set-help mh-search-mode-help-messages))
|
||
|
||
|
||
|
||
;;; MH-Search Commands
|
||
|
||
(defun mh-index-do-search (&optional searcher)
|
||
"Find messages using `mh-search-program'.
|
||
If optional argument SEARCHER is present, use it instead of
|
||
`mh-search-program'."
|
||
(interactive)
|
||
(unless (mh-search-choose searcher) (error "No search program found"))
|
||
(let* ((regexp-list (mh-pick-parse-search-buffer))
|
||
(pattern (funcall mh-search-regexp-builder regexp-list)))
|
||
(if pattern
|
||
(mh-search mh-current-folder pattern nil mh-previous-window-config)
|
||
(error "No search terms"))))
|
||
|
||
(defun mh-pick-do-search ()
|
||
"Find messages using \"pick\".
|
||
|
||
Uses the pick method described in `mh-pick-execute-search'."
|
||
(interactive)
|
||
(mh-index-do-search 'pick))
|
||
|
||
(defun mh-pick-parse-search-buffer ()
|
||
"Parse the search buffer contents.
|
||
The function returns an alist. The car of each element is either
|
||
the header name to search in or nil to search the whole message.
|
||
The cdr of the element is the pattern to search."
|
||
(save-excursion
|
||
(let ((pattern-list ())
|
||
(in-body-flag nil)
|
||
start begin)
|
||
(goto-char (point-min))
|
||
(while (not (eobp))
|
||
(if (search-forward "--------" (mh-line-end-position) t)
|
||
(setq in-body-flag t)
|
||
(beginning-of-line)
|
||
(setq begin (point))
|
||
(setq start (if in-body-flag
|
||
(point)
|
||
(search-forward ":" (mh-line-end-position) t)
|
||
(point)))
|
||
(push (cons (and (not in-body-flag)
|
||
(intern (downcase
|
||
(buffer-substring-no-properties
|
||
begin (1- start)))))
|
||
(mh-index-parse-search-regexp
|
||
(buffer-substring-no-properties
|
||
start (mh-line-end-position))))
|
||
pattern-list))
|
||
(forward-line))
|
||
pattern-list)))
|
||
|
||
(defun mh-index-parse-search-regexp (input-string)
|
||
"Construct parse tree for INPUT-STRING.
|
||
All occurrences of &, |, ! and ~ in INPUT-STRING are replaced by
|
||
AND, OR and NOT as appropriate. Then the resulting string is
|
||
parsed."
|
||
(let (input)
|
||
(with-temp-buffer
|
||
(insert input-string)
|
||
;; replace tabs
|
||
(mh-replace-string "\t" " ")
|
||
;; synonyms of AND
|
||
(mh-replace-string " AND " " and ")
|
||
(mh-replace-string "&" " and ")
|
||
(mh-replace-string " -and " " and ")
|
||
;; synonyms of OR
|
||
(mh-replace-string " OR " " or ")
|
||
(mh-replace-string "|" " or ")
|
||
(mh-replace-string " -or " " or ")
|
||
;; synonyms of NOT
|
||
(mh-replace-string " NOT " " not ")
|
||
(mh-replace-string "!" " not ")
|
||
(mh-replace-string "~" " not ")
|
||
(mh-replace-string " -not " " not ")
|
||
;; synonyms of left brace
|
||
(mh-replace-string "(" " ( ")
|
||
(mh-replace-string " -lbrace " " ( ")
|
||
;; synonyms of right brace
|
||
(mh-replace-string ")" " ) ")
|
||
(mh-replace-string " -rbrace " " ) ")
|
||
;; get the normalized input
|
||
(setq input (format "( %s )" (buffer-substring (point-min) (point-max)))))
|
||
|
||
(let ((tokens (mh-index-add-implicit-ops (split-string input)))
|
||
(op-stack ())
|
||
(operand-stack ())
|
||
oper1)
|
||
(dolist (token tokens)
|
||
(cond ((equal token "(") (push 'paren op-stack))
|
||
((equal token "not") (push 'not op-stack))
|
||
((equal token "or") (push 'or op-stack))
|
||
((equal token "and") (push 'and op-stack))
|
||
((equal token ")")
|
||
(cl-multiple-value-setq (op-stack operand-stack)
|
||
(cl-values-list (mh-index-evaluate op-stack operand-stack)))
|
||
(when (eq (car op-stack) 'not)
|
||
(setq op-stack (cdr op-stack))
|
||
(push `(not ,(pop operand-stack)) operand-stack))
|
||
(when (eq (car op-stack) 'and)
|
||
(setq op-stack (cdr op-stack))
|
||
(setq oper1 (pop operand-stack))
|
||
(push `(and ,(pop operand-stack) ,oper1) operand-stack)))
|
||
((eq (car op-stack) 'not)
|
||
(setq op-stack (cdr op-stack))
|
||
(push `(not ,token) operand-stack)
|
||
(when (eq (car op-stack) 'and)
|
||
(setq op-stack (cdr op-stack))
|
||
(setq oper1 (pop operand-stack))
|
||
(push `(and ,(pop operand-stack) ,oper1) operand-stack)))
|
||
((eq (car op-stack) 'and)
|
||
(setq op-stack (cdr op-stack))
|
||
(push `(and ,(pop operand-stack) ,token) operand-stack))
|
||
(t (push token operand-stack))))
|
||
(prog1 (pop operand-stack)
|
||
(when (or op-stack operand-stack)
|
||
(error "Invalid regexp: %s" input))))))
|
||
|
||
(defun mh-index-add-implicit-ops (tokens)
|
||
"Add implicit operators in the list TOKENS."
|
||
(let ((result ())
|
||
(literal-seen nil)
|
||
current)
|
||
(while tokens
|
||
(setq current (pop tokens))
|
||
(cond ((or (equal current ")") (equal current "and") (equal current "or"))
|
||
(setq literal-seen nil)
|
||
(push current result))
|
||
((and literal-seen
|
||
(push "and" result)
|
||
(setq literal-seen nil)
|
||
nil))
|
||
(t
|
||
(push current result)
|
||
(unless (or (equal current "(") (equal current "not"))
|
||
(setq literal-seen t)))))
|
||
(nreverse result)))
|
||
|
||
(defun mh-index-evaluate (op-stack operand-stack)
|
||
"Read expression till starting paren based on OP-STACK and OPERAND-STACK."
|
||
(cl-block mh-index-evaluate
|
||
(let (op oper1)
|
||
(while op-stack
|
||
(setq op (pop op-stack))
|
||
(cond ((eq op 'paren)
|
||
(cl-return-from mh-index-evaluate (list op-stack operand-stack)))
|
||
((eq op 'not)
|
||
(push `(not ,(pop operand-stack)) operand-stack))
|
||
((or (eq op 'and) (eq op 'or))
|
||
(setq oper1 (pop operand-stack))
|
||
(push `(,op ,(pop operand-stack) ,oper1) operand-stack))))
|
||
(error "Ran out of tokens"))))
|
||
|
||
|
||
|
||
;;; Indexing Functions
|
||
|
||
;; Support different search programs
|
||
(defvar mh-search-choices
|
||
'((swish++
|
||
mh-swish++-binary mh-swish++-execute-search mh-swish++-next-result
|
||
mh-swish++-regexp-builder)
|
||
(swish
|
||
mh-swish-binary mh-swish-execute-search mh-swish-next-result nil)
|
||
(mairix
|
||
mh-mairix-binary mh-mairix-execute-search mh-mairix-next-result
|
||
mh-mairix-regexp-builder)
|
||
(namazu
|
||
mh-namazu-binary mh-namazu-execute-search mh-namazu-next-result nil)
|
||
(pick
|
||
mh-pick-binary mh-pick-execute-search mh-pick-next-result
|
||
mh-pick-regexp-builder)
|
||
(grep
|
||
mh-grep-binary mh-grep-execute-search mh-grep-next-result nil))
|
||
"List of possible searcher choices.")
|
||
|
||
(defun mh-search-choose (&optional searcher)
|
||
"Choose a searching function.
|
||
The side-effects of this function are that the variables
|
||
`mh-searcher', `mh-search-function', and
|
||
`mh-search-next-result-function' are set according to the first
|
||
searcher in `mh-search-choices' present on the system. If
|
||
optional argument SEARCHER is present, use it instead of
|
||
`mh-search-program'."
|
||
(cl-block nil
|
||
(let ((program-alist (cond (searcher
|
||
(list (assoc searcher mh-search-choices)))
|
||
(mh-search-program
|
||
(list
|
||
(assoc mh-search-program mh-search-choices)))
|
||
(t mh-search-choices))))
|
||
(while program-alist
|
||
(let* ((current (pop program-alist))
|
||
(executable (symbol-value (cadr current))))
|
||
(when executable
|
||
(setq mh-searcher (car current))
|
||
(setq mh-search-function (nth 2 current))
|
||
(setq mh-search-next-result-function (nth 3 current))
|
||
(setq mh-search-regexp-builder (nth 4 current))
|
||
(cl-return mh-searcher))))
|
||
nil)))
|
||
|
||
;;; Swish++
|
||
|
||
(defvar mh-swish++-binary (or (executable-find "search++")
|
||
(executable-find "search")))
|
||
(defvar mh-swish++-directory ".swish++")
|
||
(defvar mh-swish-folder nil)
|
||
|
||
(defun mh-swish++-execute-search (folder-path search-regexp)
|
||
"Execute swish++.
|
||
|
||
In the examples below, replace \"/home/user/Mail\" with the path to
|
||
your MH directory.
|
||
|
||
First create the directory \"/home/user/Mail/.swish++\". Then create
|
||
the file \"/home/user/Mail/.swish++/swish++.conf\" with the following
|
||
contents:
|
||
|
||
IncludeMeta Bcc Cc Comments Content-Description From Keywords
|
||
IncludeMeta Newsgroups Resent-To Subject To
|
||
IncludeMeta Message-Id References In-Reply-To
|
||
IncludeFile Mail *
|
||
IndexFile /home/user/Mail/.swish++/swish++.index
|
||
|
||
Use the following command line to generate the swish index. Run
|
||
this daily from cron:
|
||
|
||
find /home/user/Mail -path /home/user/Mail/mhe-index -prune \\
|
||
-o -path /home/user/Mail/.swish++ -prune \\
|
||
-o -name \"[0-9]*\" -print \\
|
||
| index -c /home/user/Mail/.swish++/swish++.conf -
|
||
|
||
This command does not index the folders that hold the results of your
|
||
searches in \"+mhe-index\" since they tend to be ephemeral and the
|
||
original messages are indexed anyway.
|
||
|
||
On some systems (Debian GNU/Linux, for example), use \"index++\"
|
||
instead of \"index\".
|
||
|
||
In a program, FOLDER-PATH is the directory in which SEARCH-REGEXP is
|
||
used to search."
|
||
(set-buffer (get-buffer-create mh-temp-index-buffer))
|
||
(erase-buffer)
|
||
(unless mh-swish++-binary
|
||
(error "Set `mh-swish++-binary' appropriately"))
|
||
(call-process mh-swish++-binary nil '(t nil) nil
|
||
"-m" "10000"
|
||
(format "-i%s%s/swish++.index"
|
||
mh-user-path mh-swish++-directory)
|
||
search-regexp)
|
||
(goto-char (point-min))
|
||
(setq mh-swish-folder
|
||
(let ((last-char (substring folder-path (1- (length folder-path)))))
|
||
(if (equal last-char "/")
|
||
folder-path
|
||
(format "%s/" folder-path)))))
|
||
|
||
(defalias 'mh-swish++-next-result 'mh-swish-next-result)
|
||
|
||
(defun mh-swish++-regexp-builder (regexp-list)
|
||
"Generate query for swish++.
|
||
REGEXP-LIST is an alist of fields and values."
|
||
(let ((regexp ""))
|
||
(dolist (elem regexp-list)
|
||
(when (cdr elem)
|
||
(setq regexp (concat regexp " and "
|
||
(if (car elem) "(" "")
|
||
(if (car elem) (symbol-name (car elem)) "")
|
||
(if (car elem) " = " "")
|
||
(mh-swish++-print-regexp (cdr elem))
|
||
(if (car elem) ")" "")))))
|
||
(substring regexp 4)))
|
||
|
||
(defun mh-swish++-print-regexp (expr)
|
||
"Return infix expression corresponding to EXPR."
|
||
(cond ((atom expr) (format "%s" expr))
|
||
((eq (car expr) 'not)
|
||
(format "(not %s)" (mh-swish++-print-regexp (cadr expr))))
|
||
(t (format "(%s %s %s)" (mh-swish++-print-regexp (cadr expr))
|
||
(symbol-name (car expr))
|
||
(mh-swish++-print-regexp (caddr expr))))))
|
||
|
||
;;; Swish
|
||
|
||
(defvar mh-swish-binary (executable-find "swish-e"))
|
||
(defvar mh-swish-directory ".swish")
|
||
|
||
(defun mh-swish-execute-search (folder-path search-regexp)
|
||
"Execute swish-e.
|
||
|
||
In the examples below, replace \"/home/user/Mail\" with the path
|
||
to your MH directory.
|
||
|
||
First create the directory \"/home/user/Mail/.swish\". Then
|
||
create the file \"/home/user/Mail/.swish/config\" with the
|
||
following contents:
|
||
|
||
DefaultContents TXT*
|
||
IndexDir /home/user/Mail
|
||
IndexFile /home/user/Mail/.swish/index
|
||
IndexName \"Mail Index\"
|
||
IndexDescription \"Mail Index\"
|
||
IndexPointer \"http://nowhere\"
|
||
IndexAdmin \"nobody\"
|
||
#MetaNames automatic
|
||
IndexReport 3
|
||
FollowSymLinks no
|
||
UseStemming no
|
||
IgnoreTotalWordCountWhenRanking yes
|
||
WordCharacters abcdefghijklmnopqrstuvwxyz0123456789-
|
||
BeginCharacters abcdefghijklmnopqrstuvwxyz
|
||
EndCharacters abcdefghijklmnopqrstuvwxyz0123456789
|
||
IgnoreLimit 50 1000
|
||
IndexComments 0
|
||
FileRules filename contains \\D
|
||
FileRules pathname contains /home/user/Mail/.swish
|
||
FileRules pathname contains /home/user/Mail/mhe-index
|
||
|
||
This configuration does not index the folders that hold the
|
||
results of your searches in \"+mhe-index\" since they tend to be
|
||
ephemeral and the original messages are indexed anyway.
|
||
|
||
If there are any directories you would like to ignore, append
|
||
lines like the following to \"config\":
|
||
|
||
FileRules pathname contains /home/user/Mail/scripts
|
||
|
||
Use the following command line to generate the swish index. Run
|
||
this daily from cron:
|
||
|
||
swish-e -c /home/user/Mail/.swish/config
|
||
|
||
In a program, FOLDER-PATH is the directory in which SEARCH-REGEXP
|
||
is used to search."
|
||
(set-buffer (get-buffer-create mh-temp-index-buffer))
|
||
(erase-buffer)
|
||
(unless mh-swish-binary
|
||
(error "Set `mh-swish-binary' appropriately"))
|
||
(call-process mh-swish-binary nil '(t nil) nil
|
||
"-w" search-regexp
|
||
"-f" (format "%s%s/index" mh-user-path mh-swish-directory))
|
||
(goto-char (point-min))
|
||
(setq mh-swish-folder
|
||
(let ((last-char (substring folder-path (1- (length folder-path)))))
|
||
(if (equal last-char "/")
|
||
folder-path
|
||
(format "%s/" folder-path)))))
|
||
|
||
(defun mh-swish-next-result ()
|
||
"Get the next result from swish output."
|
||
(prog1
|
||
(cl-block nil
|
||
(when (or (eobp) (equal (char-after (point)) ?.))
|
||
(cl-return nil))
|
||
(when (equal (char-after (point)) ?#)
|
||
(cl-return 'error))
|
||
(let* ((start (search-forward " " (mh-line-end-position) t))
|
||
(end (search-forward " " (mh-line-end-position) t)))
|
||
(unless (and start end)
|
||
(cl-return 'error))
|
||
(setq end (1- end))
|
||
(unless (file-exists-p (buffer-substring-no-properties start end))
|
||
(cl-return 'error))
|
||
(unless (search-backward "/" start t)
|
||
(cl-return 'error))
|
||
(list (let* ((s (buffer-substring-no-properties start (1+ (point)))))
|
||
(unless (string-match mh-swish-folder s)
|
||
(cl-return 'error))
|
||
(if (and (string-match mh-user-path s)
|
||
(< (match-end 0) (1- (length s))))
|
||
(format "+%s"
|
||
(substring s (match-end 0) (1- (length s))))
|
||
(cl-return 'error)))
|
||
(let* ((s (buffer-substring-no-properties (1+ (point)) end))
|
||
(n (ignore-errors (string-to-number s))))
|
||
(or n (cl-return 'error)))
|
||
nil)))
|
||
(forward-line)))
|
||
|
||
;;; Mairix
|
||
|
||
(defvar mh-mairix-binary (executable-find "mairix"))
|
||
(defvar mh-mairix-directory ".mairix")
|
||
(defvar mh-mairix-folder nil)
|
||
|
||
(defun mh-mairix-execute-search (folder-path search-regexp-list)
|
||
"Execute mairix.
|
||
|
||
In the examples below, replace \"/home/user/Mail\" with the path
|
||
to your MH directory.
|
||
|
||
First create the directory \"/home/user/Mail/.mairix\". Then
|
||
create the file \"/home/user/Mail/.mairix/config\" with the
|
||
following contents:
|
||
|
||
base=/home/user/Mail
|
||
|
||
# List of folders that should be indexed. 3 dots at the end means there
|
||
# are subfolders within the folder
|
||
mh=archive...:inbox:drafts:news:sent:trash
|
||
|
||
vfolder_format=mh
|
||
database=/home/user/Mail/.mairix/database
|
||
|
||
Use the following command line to generate the mairix index. Run
|
||
this daily from cron:
|
||
|
||
mairix -f /home/user/Mail/.mairix/config
|
||
|
||
In a program, FOLDER-PATH is the directory in which
|
||
SEARCH-REGEXP-LIST is used to search."
|
||
(set-buffer (get-buffer-create mh-temp-index-buffer))
|
||
(erase-buffer)
|
||
(unless mh-mairix-binary
|
||
(error "Set `mh-mairix-binary' appropriately"))
|
||
(apply #'call-process mh-mairix-binary nil '(t nil) nil
|
||
"-r" "-f" (format "%s%s/config" mh-user-path mh-mairix-directory)
|
||
search-regexp-list)
|
||
(goto-char (point-min))
|
||
(setq mh-mairix-folder
|
||
(let ((last-char (substring folder-path (1- (length folder-path)))))
|
||
(if (equal last-char "/")
|
||
folder-path
|
||
(format "%s/" folder-path)))))
|
||
|
||
(defun mh-mairix-next-result ()
|
||
"Return next result from mairix output."
|
||
(prog1
|
||
(cl-block nil
|
||
(when (or (eobp) (and (bolp) (eolp)))
|
||
(cl-return nil))
|
||
(unless (eq (char-after) ?/)
|
||
(cl-return 'error))
|
||
(let ((start (point))
|
||
end msg-start)
|
||
(setq end (mh-line-end-position))
|
||
(unless (search-forward mh-mairix-folder end t)
|
||
(cl-return 'error))
|
||
(goto-char (match-beginning 0))
|
||
(unless (equal (point) start)
|
||
(cl-return 'error))
|
||
(goto-char end)
|
||
(unless (search-backward "/" start t)
|
||
(cl-return 'error))
|
||
(setq msg-start (1+ (point)))
|
||
(goto-char start)
|
||
(unless (search-forward mh-user-path end t)
|
||
(cl-return 'error))
|
||
(list (format "+%s" (buffer-substring-no-properties
|
||
(point) (1- msg-start)))
|
||
(string-to-number
|
||
(buffer-substring-no-properties msg-start end))
|
||
nil)))
|
||
(forward-line)))
|
||
|
||
(defun mh-mairix-regexp-builder (regexp-list)
|
||
"Generate query for mairix.
|
||
REGEXP-LIST is an alist of fields and values."
|
||
(let ((result ()))
|
||
(dolist (pair regexp-list)
|
||
(when (cdr pair)
|
||
(push
|
||
(concat
|
||
(cond ((eq (car pair) 'to) "t:")
|
||
((eq (car pair) 'from) "f:")
|
||
((eq (car pair) 'cc) "c:")
|
||
((eq (car pair) 'to-or-cc) "tc:")
|
||
((eq (car pair) 'address) "a:")
|
||
((eq (car pair) 'subject) "s:")
|
||
((eq (car pair) 'subject-or-body) "bs:")
|
||
((eq (car pair) 'date) "d:")
|
||
((eq (car pair) 'message-id) "m:")
|
||
((eq (car pair) 'message-body) "b:")
|
||
((eq (car pair) 'message-size) "z:")
|
||
((eq (car pair) 'message-attachment-name) "n:")
|
||
((eq (car pair) 'message-flags) "F:")
|
||
(t ""))
|
||
(let ((sop (cdr (mh-mairix-convert-to-sop* (cdr pair))))
|
||
(final ""))
|
||
(dolist (conjunct sop)
|
||
(let ((expr-list (cdr conjunct))
|
||
(expr-string ""))
|
||
(dolist (e expr-list)
|
||
(setq expr-string (concat expr-string ","
|
||
(if (atom e) "" "~")
|
||
(if (atom e) e (cadr e)))))
|
||
(setq final (concat final "/" (substring expr-string 1)))))
|
||
(substring final 1)))
|
||
result)))
|
||
result))
|
||
|
||
(defun mh-mairix-convert-to-sop* (expr)
|
||
"Convert EXPR to sum of product form."
|
||
(cond ((atom expr) `(or (and ,expr)))
|
||
((eq (car expr) 'or)
|
||
(cons 'or
|
||
(cl-loop for e in (mapcar #'mh-mairix-convert-to-sop* (cdr expr))
|
||
append (cdr e))))
|
||
((eq (car expr) 'and)
|
||
(let ((conjuncts (mapcar #'mh-mairix-convert-to-sop* (cdr expr)))
|
||
result next-factor)
|
||
(setq result (pop conjuncts))
|
||
(while conjuncts
|
||
(setq next-factor (pop conjuncts))
|
||
(setq result (let ((res ()))
|
||
(dolist (t1 (cdr result))
|
||
(dolist (t2 (cdr next-factor))
|
||
(push `(and ,@(cdr t1) ,@(cdr t2)) res)))
|
||
(cons 'or res))))
|
||
result))
|
||
((atom (cadr expr)) `(or (and ,expr)))
|
||
((eq (caadr expr) 'not) (mh-mairix-convert-to-sop* (cadadr expr)))
|
||
((eq (caadr expr) 'and) (mh-mairix-convert-to-sop*
|
||
`(or ,@(mapcar #'(lambda (x) `(not ,x))
|
||
(cdadr expr)))))
|
||
((eq (caadr expr) 'or) (mh-mairix-convert-to-sop*
|
||
`(and ,@(mapcar #'(lambda (x) `(not ,x))
|
||
(cdadr expr)))))
|
||
(t (error "Unreachable: %s" expr))))
|
||
|
||
;;; Namazu
|
||
|
||
(defvar mh-namazu-binary (executable-find "namazu"))
|
||
(defvar mh-namazu-directory ".namazu")
|
||
(defvar mh-namazu-folder nil)
|
||
|
||
(defun mh-namazu-execute-search (folder-path search-regexp)
|
||
"Execute namazu.
|
||
|
||
In the examples below, replace \"/home/user/Mail\" with the path to
|
||
your MH directory.
|
||
|
||
First create the directory \"/home/user/Mail/.namazu\". Then create
|
||
the file \"/home/user/Mail/.namazu/mknmzrc\" with the following
|
||
contents:
|
||
|
||
package conf; # Don't remove this line!
|
||
$ADDRESS = \\='user@localhost\\=';
|
||
$ALLOW_FILE = \"[0-9]*\";
|
||
$EXCLUDE_PATH = \"^/home/user/Mail/(mhe-index|spam)\";
|
||
|
||
This configuration does not index the folders that hold the results of
|
||
your searches in \"+mhe-index\" since they tend to be ephemeral and
|
||
the original messages are indexed anyway.
|
||
|
||
Use the following command line to generate the namazu index. Run this
|
||
daily from cron:
|
||
|
||
mknmz -f /home/user/Mail/.namazu/mknmzrc -O /home/user/Mail/.namazu \\
|
||
-q /home/user/Mail
|
||
|
||
In a program, FOLDER-PATH is the directory in which SEARCH-REGEXP
|
||
is used to search."
|
||
(let ((namazu-index-directory
|
||
(format "%s%s" mh-user-path mh-namazu-directory)))
|
||
(unless (file-exists-p namazu-index-directory)
|
||
(error "Namazu directory %s not present" namazu-index-directory))
|
||
(unless (executable-find mh-namazu-binary)
|
||
(error "Set `mh-namazu-binary' appropriately"))
|
||
(set-buffer (get-buffer-create mh-temp-index-buffer))
|
||
(erase-buffer)
|
||
(call-process mh-namazu-binary nil '(t nil) nil
|
||
"-alR" search-regexp namazu-index-directory)
|
||
(goto-char (point-min))
|
||
(setq mh-namazu-folder
|
||
(let ((last (substring folder-path (1- (length folder-path)))))
|
||
(if (equal last "/")
|
||
folder-path
|
||
(format "%s/" folder-path))))))
|
||
|
||
(defun mh-namazu-next-result ()
|
||
"Get the next result from namazu output."
|
||
(prog1
|
||
(cl-block nil
|
||
(when (eobp) (cl-return nil))
|
||
(let ((file-name (buffer-substring-no-properties
|
||
(point) (mh-line-end-position))))
|
||
(unless (equal (string-match mh-namazu-folder file-name) 0)
|
||
(cl-return 'error))
|
||
(unless (file-exists-p file-name)
|
||
(cl-return 'error))
|
||
(string-match mh-user-path file-name)
|
||
(let* ((folder/msg (substring file-name (match-end 0)))
|
||
(mark (mh-search-from-end ?/ folder/msg)))
|
||
(unless mark (cl-return 'error))
|
||
(list (format "+%s" (substring folder/msg 0 mark))
|
||
(let ((n (ignore-errors (string-to-number
|
||
(substring folder/msg (1+ mark))))))
|
||
(or n (cl-return 'error)))
|
||
nil))))
|
||
(forward-line)))
|
||
|
||
;;; Pick
|
||
|
||
(defvar mh-index-pick-folder)
|
||
(defvar mh-pick-binary "pick")
|
||
(defconst mh-pick-single-dash '(cc date from subject to)
|
||
"Search components that are supported by single-dash option in pick.")
|
||
|
||
(defun mh-pick-execute-search (folder-path search-regexp)
|
||
"Execute pick.
|
||
|
||
Read \"pick(1)\" or the section Finding Messages with pick in the
|
||
MH book to find out more about how to enter the criteria (see URL
|
||
`http://www.ics.uci.edu/~mh/book/mh/finpic.htm').
|
||
|
||
In a program, FOLDER-PATH is the directory in which SEARCH-REGEXP
|
||
is used to search."
|
||
(set-buffer (get-buffer-create mh-temp-index-buffer))
|
||
(erase-buffer)
|
||
(let ((folders
|
||
(mh-folder-list (substring folder-path (length mh-user-path)))))
|
||
(cl-loop for folder in folders do
|
||
(setq folder (concat "+" folder))
|
||
(insert folder "\n")
|
||
(apply #'call-process (expand-file-name "pick" mh-progs)
|
||
nil '(t nil) nil folder "-list" search-regexp)))
|
||
(goto-char (point-min)))
|
||
|
||
(defun mh-pick-next-result ()
|
||
"Return the next pick search result."
|
||
(prog1
|
||
(cl-block nil
|
||
(when (eobp) (cl-return nil))
|
||
(when (search-forward-regexp "^\\+" (mh-line-end-position) t)
|
||
(setq mh-index-pick-folder
|
||
(buffer-substring-no-properties (mh-line-beginning-position)
|
||
(mh-line-end-position)))
|
||
(cl-return 'error))
|
||
(unless (search-forward-regexp "^[1-9][0-9]*$" (mh-line-end-position) t)
|
||
(cl-return 'error))
|
||
(list mh-index-pick-folder
|
||
(string-to-number
|
||
(buffer-substring-no-properties (mh-line-beginning-position)
|
||
(mh-line-end-position)))
|
||
nil))
|
||
(forward-line)))
|
||
|
||
;; All implementations of pick have special options -cc, -date, -from and
|
||
;; -subject that allow searching for corresponding components. Any other
|
||
;; component is searched using option --COMPNAME, for example: `pick
|
||
;; --x-mailer mh-e'. Mailutils "pick" supports this option using a certain
|
||
;; kludge, but it prefers the following syntax for this purpose:
|
||
;; "--component=COMPNAME --pattern=PATTERN".
|
||
;; -- Sergey Poznyakoff, Aug 2003
|
||
(defun mh-pick-regexp-builder (pattern-list)
|
||
"Generate pick search expression from PATTERN-LIST."
|
||
(let ((result ()))
|
||
(dolist (pattern pattern-list)
|
||
(when (cdr pattern)
|
||
(setq result `(,@result "-and" "-lbrace"
|
||
,@(mh-pick-construct-regexp
|
||
(if (and (mh-variant-p 'gnu-mh) (car pattern))
|
||
(format "--pattern=%s" (cdr pattern))
|
||
(cdr pattern))
|
||
(if (car pattern)
|
||
(cond
|
||
((mh-variant-p 'gnu-mh)
|
||
(format "--component=%s" (car pattern)))
|
||
((member (car pattern) mh-pick-single-dash)
|
||
(format "-%s" (car pattern)))
|
||
(t
|
||
(format "--%s" (car pattern))))
|
||
"-search"))
|
||
"-rbrace"))))
|
||
(cdr result)))
|
||
|
||
(defun mh-pick-construct-regexp (expr component)
|
||
"Construct pick compatible expression corresponding to EXPR.
|
||
COMPONENT is the component to search."
|
||
(cond ((atom expr) (list component expr))
|
||
((eq (car expr) 'and)
|
||
`("-lbrace" ,@(mh-pick-construct-regexp (cadr expr) component) "-and"
|
||
,@(mh-pick-construct-regexp (caddr expr) component) "-rbrace"))
|
||
((eq (car expr) 'or)
|
||
`("-lbrace" ,@(mh-pick-construct-regexp (cadr expr) component) "-or"
|
||
,@(mh-pick-construct-regexp (caddr expr) component) "-rbrace"))
|
||
((eq (car expr) 'not)
|
||
`("-lbrace" "-not" ,@(mh-pick-construct-regexp (cadr expr) component)
|
||
"-rbrace"))
|
||
(t (error "Unknown operator %s seen" (car expr)))))
|
||
|
||
;;; Grep
|
||
|
||
(defvar mh-grep-binary (executable-find "grep"))
|
||
|
||
(defun mh-grep-execute-search (folder-path search-regexp)
|
||
"Execute grep.
|
||
|
||
Unlike the other search methods, this method does not use the
|
||
MH-Search buffer. Instead, you simply enter a regular expression
|
||
in the minibuffer. For help in constructing regular expressions,
|
||
see your man page for \"grep\".
|
||
|
||
In a program, FOLDER-PATH is the directory in which SEARCH-REGEXP
|
||
is used to search."
|
||
(set-buffer (get-buffer-create mh-temp-index-buffer))
|
||
(erase-buffer)
|
||
(call-process mh-grep-binary nil '(t nil) nil
|
||
"-i" "-r" search-regexp folder-path)
|
||
(goto-char (point-min)))
|
||
|
||
(defun mh-grep-next-result ()
|
||
"Read the next result.
|
||
Parse it and return the message folder, message index and the
|
||
match. If no other matches left then return nil. If the current
|
||
record is invalid return `error'."
|
||
(prog1
|
||
(cl-block nil
|
||
(when (eobp)
|
||
(cl-return nil))
|
||
(let ((eol-pos (mh-line-end-position))
|
||
(bol-pos (mh-line-beginning-position))
|
||
folder-start msg-end)
|
||
(goto-char bol-pos)
|
||
(unless (search-forward mh-user-path eol-pos t)
|
||
(cl-return 'error))
|
||
(setq folder-start (point))
|
||
(unless (search-forward ":" eol-pos t)
|
||
(cl-return 'error))
|
||
(let ((match (buffer-substring-no-properties (point) eol-pos)))
|
||
(forward-char -1)
|
||
(setq msg-end (point))
|
||
(unless (search-backward "/" folder-start t)
|
||
(cl-return 'error))
|
||
(list (format "+%s" (buffer-substring-no-properties
|
||
folder-start (point)))
|
||
(let ((n (ignore-errors (string-to-number
|
||
(buffer-substring-no-properties
|
||
(1+ (point)) msg-end)))))
|
||
(or n (cl-return 'error)))
|
||
match))))
|
||
(forward-line)))
|
||
|
||
|
||
|
||
;;; Folder Utilities
|
||
|
||
;;;###mh-autoload
|
||
(defun mh-index-group-by-folder ()
|
||
"Partition the messages based on source folder.
|
||
Returns an alist with the folder names in the car and the cdr
|
||
being the list of messages originally from that folder."
|
||
(save-excursion
|
||
(goto-char (point-min))
|
||
(let ((result-table (make-hash-table :test #'equal)))
|
||
(cl-loop for msg being the hash-keys of mh-index-msg-checksum-map
|
||
do (push msg (gethash (car (gethash
|
||
(gethash msg
|
||
mh-index-msg-checksum-map)
|
||
mh-index-checksum-origin-map))
|
||
result-table)))
|
||
(cl-loop for x being the hash-keys of result-table
|
||
collect (cons x (nreverse (gethash x result-table)))))))
|
||
|
||
;;;###mh-autoload
|
||
(defun mh-index-insert-folder-headers ()
|
||
"Annotate the search results with original folder names."
|
||
(let ((cur-msg (mh-get-msg-num nil))
|
||
(old-buffer-modified-flag (buffer-modified-p))
|
||
(buffer-read-only nil)
|
||
current-folder last-folder)
|
||
(goto-char (point-min))
|
||
(while (not (eobp))
|
||
(setq current-folder (car (gethash (gethash (mh-get-msg-num nil)
|
||
mh-index-msg-checksum-map)
|
||
mh-index-checksum-origin-map)))
|
||
(when (and current-folder (not (equal current-folder last-folder)))
|
||
(insert (if last-folder "\n" "") current-folder "\n")
|
||
(setq last-folder current-folder))
|
||
(forward-line))
|
||
(when cur-msg
|
||
(mh-notate-cur)
|
||
(mh-goto-msg cur-msg t))
|
||
(set-buffer-modified-p old-buffer-modified-flag))
|
||
(mh-index-create-imenu-index))
|
||
|
||
;;;###mh-autoload
|
||
(defun mh-index-delete-folder-headers ()
|
||
"Delete the folder headers."
|
||
(let ((cur-msg (mh-get-msg-num nil))
|
||
(old-buffer-modified-flag (buffer-modified-p))
|
||
(buffer-read-only nil))
|
||
(while (and (not cur-msg) (not (eobp)))
|
||
(forward-line)
|
||
(setq cur-msg (mh-get-msg-num nil)))
|
||
(goto-char (point-min))
|
||
(while (not (eobp))
|
||
(if (or (char-equal (char-after) ?+) (char-equal (char-after) 10))
|
||
(delete-region (point) (progn (forward-line) (point)))
|
||
(forward-line)))
|
||
(when cur-msg (mh-goto-msg cur-msg t t))
|
||
(set-buffer-modified-p old-buffer-modified-flag)))
|
||
|
||
(eval-and-compile (mh-require 'which-func nil t))
|
||
|
||
;; Shush compiler.
|
||
(defvar which-func-mode) ; < Emacs 22, XEmacs
|
||
|
||
;;;###mh-autoload
|
||
(defun mh-index-create-imenu-index ()
|
||
"Create alist of folder names and positions in index folder buffers."
|
||
(save-excursion
|
||
(if (boundp 'which-func-mode)
|
||
(setq which-func-mode t))
|
||
(let ((alist ()))
|
||
(goto-char (point-min))
|
||
(while (re-search-forward "^\\+" nil t)
|
||
(save-excursion
|
||
(beginning-of-line)
|
||
(push (cons (buffer-substring-no-properties
|
||
(point) (mh-line-end-position))
|
||
(point-marker))
|
||
alist)))
|
||
(setq imenu--index-alist (nreverse alist)))))
|
||
|
||
;;;###mh-autoload
|
||
(defun mh-search-p ()
|
||
"Non-nil means that this folder was generated by searching."
|
||
mh-index-data)
|
||
|
||
(defvar mh-speed-flists-inhibit-flag)
|
||
|
||
;;;###mh-autoload
|
||
(defun mh-index-execute-commands ()
|
||
"Perform the outstanding operations on the actual messages.
|
||
The copies in the searched folder are then deleted, refiled,
|
||
blacklisted and whitelisted to get the desired result. Before
|
||
processing the messages we make sure that the message is
|
||
identical to the one that the user has marked in the index
|
||
buffer."
|
||
(save-excursion
|
||
(let ((folders ())
|
||
(mh-speed-flists-inhibit-flag t))
|
||
(maphash
|
||
(lambda (folder msgs)
|
||
(push folder folders)
|
||
(if (not (get-buffer folder))
|
||
;; If source folder not open, just delete the messages...
|
||
(apply #'mh-exec-cmd "rmm" folder (mh-coalesce-msg-list msgs))
|
||
;; Otherwise delete the messages in the source buffer...
|
||
(with-current-buffer folder
|
||
(let ((old-refile-list mh-refile-list)
|
||
(old-delete-list mh-delete-list)
|
||
(old-blacklist mh-blacklist)
|
||
(old-whitelist mh-whitelist))
|
||
(setq mh-refile-list nil
|
||
mh-delete-list msgs
|
||
mh-blacklist nil
|
||
mh-whitelist nil)
|
||
(unwind-protect (mh-execute-commands)
|
||
(setq mh-refile-list
|
||
(mapcar (lambda (x)
|
||
(cons (car x)
|
||
(cl-loop for y in (cdr x)
|
||
unless (memq y msgs)
|
||
collect y)))
|
||
old-refile-list)
|
||
mh-delete-list
|
||
(cl-loop for x in old-delete-list
|
||
unless (memq x msgs) collect x)
|
||
mh-blacklist
|
||
(cl-loop for x in old-blacklist
|
||
unless (memq x msgs) collect x)
|
||
mh-whitelist
|
||
(cl-loop for x in old-whitelist
|
||
unless (memq x msgs) collect x))
|
||
(mh-set-folder-modified-p (mh-outstanding-commands-p))
|
||
(when (mh-outstanding-commands-p)
|
||
(mh-notate-deleted-and-refiled)))))))
|
||
(mh-index-matching-source-msgs (append (cl-loop for x in mh-refile-list
|
||
append (cdr x))
|
||
mh-delete-list
|
||
mh-blacklist
|
||
mh-whitelist)
|
||
t))
|
||
folders)))
|
||
|
||
(defun mh-index-generate-pretty-name (string)
|
||
"Given STRING generate a name which is suitable for use as a folder name.
|
||
White space from the beginning and end are removed. All spaces in
|
||
the name are replaced with underscores and all / are replaced
|
||
with $. If STRING is longer than 20 it is truncated too. STRING
|
||
could be a list of strings in which case they are concatenated to
|
||
construct the base name."
|
||
(with-temp-buffer
|
||
(if (stringp string)
|
||
(insert string)
|
||
(when (car string) (insert (car string)))
|
||
(dolist (s (cdr string))
|
||
(insert "_" s)))
|
||
(setq string (mh-replace-string "-lbrace" " "))
|
||
(setq string (mh-replace-string "-rbrace" " "))
|
||
(setq string (mh-replace-string "-search" " "))
|
||
(subst-char-in-region (point-min) (point-max) ?\( ? t)
|
||
(subst-char-in-region (point-min) (point-max) ?\) ? t)
|
||
(subst-char-in-region (point-min) (point-max) ?- ? t)
|
||
(goto-char (point-min))
|
||
(while (and (not (eobp)) (memq (char-after) '(? ?\t ?\n ?\r ?_)))
|
||
(delete-char 1))
|
||
(goto-char (point-max))
|
||
(while (and (not (bobp)) (memq (char-before) '(? ?\t ?\n ?\r ?_)))
|
||
(delete-char -1))
|
||
(subst-char-in-region (point-min) (point-max) ? ?_ t)
|
||
(subst-char-in-region (point-min) (point-max) ?\t ?_ t)
|
||
(subst-char-in-region (point-min) (point-max) ?\n ?_ t)
|
||
(subst-char-in-region (point-min) (point-max) ?\r ?_ t)
|
||
(subst-char-in-region (point-min) (point-max) ?/ ?$ t)
|
||
(let ((out (truncate-string-to-width (buffer-string) 20)))
|
||
(cond ((eq mh-searcher 'flists)
|
||
(format "%s/%s" mh-flists-results-folder mh-flists-sequence))
|
||
((equal out mh-flists-results-folder) (concat out "1"))
|
||
(t out)))))
|
||
|
||
(defun mh-folder-exists-p (folder)
|
||
"Check if FOLDER exists."
|
||
(and (mh-folder-name-p folder)
|
||
(save-excursion
|
||
(with-temp-buffer
|
||
(mh-exec-cmd-output "folder" nil "-fast" "-nocreate" folder)
|
||
(goto-char (point-min))
|
||
;; Strip + from folder; use optional + in regexp.
|
||
(looking-at (format "+?%s" (substring folder 1)))))))
|
||
|
||
(defun mh-msg-exists-p (msg folder)
|
||
"Check if MSG exists in FOLDER."
|
||
(file-exists-p (format "%s%s/%s" mh-user-path (substring folder 1) msg)))
|
||
|
||
(defun mh-index-new-folder (name search-regexp)
|
||
"Return a folder name based on NAME for search results of SEARCH-REGEXP.
|
||
|
||
If folder NAME already exists and was generated for the same
|
||
SEARCH-REGEXP then it is reused.
|
||
|
||
Otherwise if the folder NAME was generated from a different
|
||
search then check if NAME-2 can be used. Otherwise try NAME-3.
|
||
This is repeated till we find a new folder name.
|
||
|
||
If the folder returned doesn't exist then it is created."
|
||
(unless (mh-folder-name-p name)
|
||
(error "The argument should be a valid MH folder name"))
|
||
(let ((chosen-name
|
||
(cl-loop for i from 1
|
||
for candidate = (if (equal i 1) name (format "%s-%s" name i))
|
||
when (or (not (mh-folder-exists-p candidate))
|
||
(equal (mh-index-folder-search-regexp candidate)
|
||
search-regexp))
|
||
return candidate)))
|
||
;; Do pending refiles/deletes...
|
||
(when (get-buffer chosen-name)
|
||
(mh-process-or-undo-commands chosen-name))
|
||
;; Recreate folder...
|
||
(save-excursion (mh-exec-cmd-quiet nil "rmf" chosen-name))
|
||
(mh-exec-cmd-quiet nil "folder" "-create" "-fast" chosen-name)
|
||
(mh-remove-from-sub-folders-cache chosen-name)
|
||
(when (boundp 'mh-speed-folder-map)
|
||
(mh-speed-add-folder chosen-name))
|
||
chosen-name))
|
||
|
||
(defun mh-index-folder-search-regexp (folder)
|
||
"If FOLDER was created by an index search, return the search regexp.
|
||
Return nil if FOLDER doesn't exist or the .mhe_index file is
|
||
garbled."
|
||
(ignore-errors
|
||
(with-temp-buffer
|
||
(insert-file-contents
|
||
(format "%s%s/%s" mh-user-path (substring folder 1) mh-index-data-file))
|
||
(goto-char (point-min))
|
||
(forward-list 3)
|
||
(cadr (read (current-buffer))))))
|
||
|
||
|
||
|
||
;;; Sequence Support
|
||
|
||
;;;###mh-autoload
|
||
(defun mh-index-create-sequences ()
|
||
"Mirror sequences present in source folders in index folder."
|
||
(let ((seq-hash (make-hash-table :test #'equal))
|
||
(seq-list ()))
|
||
(cl-loop for folder being the hash-keys of mh-index-data
|
||
do (setf (gethash folder seq-hash)
|
||
(mh-create-sequence-map
|
||
(mh-read-folder-sequences folder nil))))
|
||
(dolist (msg (mh-translate-range mh-current-folder "all"))
|
||
(let* ((checksum (gethash msg mh-index-msg-checksum-map))
|
||
(pair (gethash checksum mh-index-checksum-origin-map))
|
||
(ofolder (car pair))
|
||
(omsg (cdr pair)))
|
||
(cl-loop for seq in (ignore-errors
|
||
(gethash omsg (gethash ofolder seq-hash)))
|
||
do (if (assoc seq seq-list)
|
||
(push msg (cdr (assoc seq seq-list)))
|
||
(push (list seq msg) seq-list)))))
|
||
(cl-loop for seq in seq-list
|
||
do (apply #'mh-exec-cmd "mark" mh-current-folder
|
||
"-sequence" (symbol-name (car seq)) "-add"
|
||
(mapcar #'(lambda (x) (format "%s" x)) (cdr seq))))))
|
||
|
||
;;;###mh-autoload
|
||
(defun mh-create-sequence-map (seq-list)
|
||
"Return a map from msg number to list of sequences in which it is present.
|
||
SEQ-LIST is an assoc list whose keys are sequence names and whose
|
||
cdr is the list of messages in that sequence."
|
||
(cl-loop with map = (make-hash-table)
|
||
for seq in seq-list
|
||
when (and (not (memq (car seq) (mh-unpropagated-sequences)))
|
||
(mh-valid-seq-p (car seq)))
|
||
do (cl-loop for msg in (cdr seq)
|
||
do (push (car seq) (gethash msg map)))
|
||
finally return map))
|
||
|
||
;;;###mh-autoload
|
||
(defun mh-index-add-to-sequence (seq msgs)
|
||
"Add to SEQ the messages in the list MSGS.
|
||
This function updates the source folder sequences. Also makes an
|
||
attempt to update the source folder buffer if we have it open."
|
||
;; Don't need to do anything for cur
|
||
(save-excursion
|
||
(when (and (not (memq seq (mh-unpropagated-sequences)))
|
||
(mh-valid-seq-p seq))
|
||
(let ((folders ())
|
||
(mh-speed-flists-inhibit-flag t))
|
||
(maphash (lambda (folder msgs)
|
||
(push folder folders)
|
||
;; Add messages to sequence in source folder...
|
||
(apply #'mh-exec-cmd-quiet nil "mark" folder
|
||
"-add" "-nozero" "-sequence" (symbol-name seq)
|
||
(mapcar (lambda (x) (format "%s" x))
|
||
(mh-coalesce-msg-list msgs)))
|
||
;; Update source folder buffer if we have it open...
|
||
(when (get-buffer folder)
|
||
(with-current-buffer folder
|
||
(mh-put-msg-in-seq msgs seq))))
|
||
(mh-index-matching-source-msgs msgs))
|
||
folders))))
|
||
|
||
;;;###mh-autoload
|
||
(defun mh-index-delete-from-sequence (seq msgs)
|
||
"Delete from SEQ the messages in MSGS.
|
||
This function updates the source folder sequences. Also makes an
|
||
attempt to update the source folder buffer if present."
|
||
(save-excursion
|
||
(when (and (not (memq seq (mh-unpropagated-sequences)))
|
||
(mh-valid-seq-p seq))
|
||
(let ((folders ())
|
||
(mh-speed-flists-inhibit-flag t))
|
||
(maphash (lambda (folder msgs)
|
||
(push folder folders)
|
||
;; Remove messages from sequence in source folder...
|
||
(apply #'mh-exec-cmd-quiet nil "mark" folder
|
||
"-del" "-nozero" "-sequence" (symbol-name seq)
|
||
(mapcar (lambda (x) (format "%s" x))
|
||
(mh-coalesce-msg-list msgs)))
|
||
;; Update source folder buffer if we have it open...
|
||
(when (get-buffer folder)
|
||
(with-current-buffer folder
|
||
(mh-delete-msg-from-seq msgs seq t))))
|
||
(mh-index-matching-source-msgs msgs))
|
||
folders))))
|
||
|
||
(defvar mh-unpropagated-sequences '(cur range subject search)
|
||
"List of sequences that aren't preserved.")
|
||
|
||
(defun mh-unpropagated-sequences ()
|
||
"Return a list of sequences that aren't propagated to the source folders.
|
||
It is just the sequences in the variable
|
||
`mh-unpropagated-sequences' in addition to the
|
||
Previous-Sequence (see mh-profile 5)."
|
||
(if mh-previous-seq
|
||
(cons mh-previous-seq mh-unpropagated-sequences)
|
||
mh-unpropagated-sequences))
|
||
|
||
(defun mh-index-matching-source-msgs (msgs &optional delete-from-index-data)
|
||
"Return a table of original messages and folders for messages in MSGS.
|
||
If optional argument DELETE-FROM-INDEX-DATA is non-nil, then each
|
||
of the messages, whose counter-part is found in some source
|
||
folder, is removed from `mh-index-data'."
|
||
(let ((table (make-hash-table :test #'equal)))
|
||
(dolist (msg msgs)
|
||
(let* ((checksum (gethash msg mh-index-msg-checksum-map))
|
||
(pair (gethash checksum mh-index-checksum-origin-map)))
|
||
(when (and checksum (car pair) (cdr pair)
|
||
(mh-index-match-checksum (cdr pair) (car pair) checksum))
|
||
(push (cdr pair) (gethash (car pair) table))
|
||
(when delete-from-index-data
|
||
(remhash (cdr pair) (gethash (car pair) mh-index-data))))))
|
||
table))
|
||
|
||
(defun mh-index-match-checksum (msg folder checksum)
|
||
"Check if MSG in FOLDER has X-MHE-Checksum header value of CHECKSUM."
|
||
(with-temp-buffer
|
||
(mh-exec-cmd-output mh-scan-prog nil "-width" "80"
|
||
"-format" "%{x-mhe-checksum}\n" folder msg)
|
||
(goto-char (point-min))
|
||
(string-equal (buffer-substring-no-properties
|
||
(point) (mh-line-end-position))
|
||
checksum)))
|
||
|
||
|
||
|
||
;;; Serialization of Index Data
|
||
|
||
(defun mh-index-write-data ()
|
||
"Write index data to file."
|
||
(ignore-errors
|
||
(unless (eq major-mode 'mh-folder-mode)
|
||
(error "Can't be called from folder in \"%s\"" major-mode))
|
||
(let ((data mh-index-data)
|
||
(msg-checksum-map mh-index-msg-checksum-map)
|
||
(checksum-origin-map mh-index-checksum-origin-map)
|
||
(previous-search mh-index-previous-search)
|
||
(sequence-search-flag mh-index-sequence-search-flag)
|
||
(outfile (concat buffer-file-name mh-index-data-file))
|
||
(print-length nil)
|
||
(print-level nil))
|
||
(with-temp-file outfile
|
||
(mh-index-write-hashtable
|
||
data (lambda (x) (cl-loop for y being the hash-keys of x collect y)))
|
||
(mh-index-write-hashtable msg-checksum-map #'identity)
|
||
(mh-index-write-hashtable checksum-origin-map #'identity)
|
||
(pp previous-search (current-buffer)) (insert "\n")
|
||
(pp sequence-search-flag (current-buffer)) (insert "\n")))))
|
||
|
||
(defun mh-index-write-hashtable (table proc)
|
||
"Write TABLE to `current-buffer'.
|
||
PROC is used to serialize the values corresponding to the hash
|
||
table keys."
|
||
(pp (cl-loop for x being the hash-keys of table
|
||
collect (cons x (funcall proc (gethash x table))))
|
||
(current-buffer))
|
||
(insert "\n"))
|
||
|
||
;;;###mh-autoload
|
||
(defun mh-index-read-data ()
|
||
"Read index data from file."
|
||
(ignore-errors
|
||
(unless (eq major-mode 'mh-folder-mode)
|
||
(error "Can't be called from folder in \"%s\"" major-mode))
|
||
(let ((infile (concat buffer-file-name mh-index-data-file))
|
||
t1 t2 t3 t4 t5)
|
||
(with-temp-buffer
|
||
(insert-file-contents-literally infile)
|
||
(goto-char (point-min))
|
||
(setq t1 (mh-index-read-hashtable
|
||
(lambda (data)
|
||
(cl-loop with table = (make-hash-table :test #'equal)
|
||
for x in data do (setf (gethash x table) t)
|
||
finally return table)))
|
||
t2 (mh-index-read-hashtable #'identity)
|
||
t3 (mh-index-read-hashtable #'identity)
|
||
t4 (read (current-buffer))
|
||
t5 (read (current-buffer))))
|
||
(setq mh-index-data t1
|
||
mh-index-msg-checksum-map t2
|
||
mh-index-checksum-origin-map t3
|
||
mh-index-previous-search t4
|
||
mh-index-sequence-search-flag t5))))
|
||
|
||
(defun mh-index-read-hashtable (proc)
|
||
"From BUFFER read a hash table serialized as a list.
|
||
PROC is used to convert the value to actual data."
|
||
(cl-loop with table = (make-hash-table :test #'equal)
|
||
for pair in (read (current-buffer))
|
||
do (setf (gethash (car pair) table) (funcall proc (cdr pair)))
|
||
finally return table))
|
||
|
||
|
||
|
||
;;; Checksum Routines
|
||
|
||
;; A few different checksum programs are supported. The supported
|
||
;; programs are:
|
||
|
||
;; 1. md5sum
|
||
;; 2. md5
|
||
;; 3. openssl
|
||
|
||
;; To add support for your favorite checksum program add a clause to
|
||
;; the cond statement in mh-checksum-choose. This should set the
|
||
;; variable mh-checksum-cmd to the command line needed to run the
|
||
;; checksum program and should set mh-checksum-parser to a function
|
||
;; which returns a cons cell containing the message number and
|
||
;; checksum string.
|
||
|
||
(defvar mh-checksum-cmd)
|
||
(defvar mh-checksum-parser)
|
||
|
||
(defun mh-checksum-choose ()
|
||
"Check if a program to create a checksum is present."
|
||
(unless (boundp 'mh-checksum-cmd)
|
||
(let ((exec-path (append '("/sbin" "/usr/sbin") exec-path)))
|
||
(cond ((executable-find "md5sum")
|
||
(setq mh-checksum-cmd (list (executable-find "md5sum")))
|
||
(setq mh-checksum-parser #'mh-md5sum-parser))
|
||
((executable-find "openssl")
|
||
(setq mh-checksum-cmd (list (executable-find "openssl") "md5"))
|
||
(setq mh-checksum-parser #'mh-openssl-parser))
|
||
((executable-find "md5")
|
||
(setq mh-checksum-cmd (list (executable-find "md5")))
|
||
(setq mh-checksum-parser #'mh-md5-parser))
|
||
(t (error "No suitable checksum program"))))))
|
||
|
||
(defun mh-md5sum-parser ()
|
||
"Parse md5sum output."
|
||
(let ((begin (mh-line-beginning-position))
|
||
(end (mh-line-end-position))
|
||
first-space last-slash)
|
||
(setq first-space (search-forward " " end t))
|
||
(goto-char end)
|
||
(setq last-slash (search-backward "/" begin t))
|
||
(cond ((and first-space last-slash)
|
||
(cons (string-to-number (buffer-substring-no-properties
|
||
(1+ last-slash) end))
|
||
(buffer-substring-no-properties begin (1- first-space))))
|
||
(t (cons nil nil)))))
|
||
|
||
(defun mh-openssl-parser ()
|
||
"Parse openssl output."
|
||
(let ((begin (mh-line-beginning-position))
|
||
(end (mh-line-end-position))
|
||
last-space last-slash)
|
||
(goto-char end)
|
||
(setq last-space (search-backward " " begin t))
|
||
(setq last-slash (search-backward "/" begin t))
|
||
(cond ((and last-slash last-space)
|
||
(cons (string-to-number (buffer-substring-no-properties
|
||
(1+ last-slash) (1- last-space)))
|
||
(buffer-substring-no-properties (1+ last-space) end))))))
|
||
|
||
(defalias 'mh-md5-parser 'mh-openssl-parser)
|
||
|
||
;;;###mh-autoload
|
||
(defun mh-index-update-maps (folder &optional origin-map)
|
||
"Annotate all as yet unannotated messages in FOLDER with their MD5 hash.
|
||
As a side effect msg -> checksum map is updated. Optional
|
||
argument ORIGIN-MAP is a hash table which maps each message in the
|
||
index folder to the original folder and message from whence it
|
||
was copied. If present the checksum -> (origin-folder,
|
||
origin-index) map is updated too."
|
||
(clrhash mh-index-msg-checksum-map)
|
||
;; Clear temp buffer
|
||
(with-current-buffer (get-buffer-create mh-temp-checksum-buffer)
|
||
(erase-buffer)
|
||
;; Run scan to check if any messages needs MD5 annotations at all
|
||
(with-temp-buffer
|
||
(mh-exec-cmd-output mh-scan-prog nil "-width" "80"
|
||
"-format" "%(msg)\n%{x-mhe-checksum}\n"
|
||
folder "all")
|
||
(goto-char (point-min))
|
||
(let (msg checksum)
|
||
(while (not (eobp))
|
||
(setq msg (buffer-substring-no-properties
|
||
(point) (mh-line-end-position)))
|
||
(forward-line)
|
||
(save-excursion
|
||
(cond ((not (string-match "^[0-9]*$" msg)))
|
||
((eolp)
|
||
;; need to compute checksum
|
||
(set-buffer mh-temp-checksum-buffer)
|
||
(insert mh-user-path (substring folder 1) "/" msg "\n"))
|
||
(t
|
||
;; update maps
|
||
(setq checksum (buffer-substring-no-properties
|
||
(point) (mh-line-end-position)))
|
||
(let ((msg (string-to-number msg)))
|
||
(set-buffer folder)
|
||
(mh-index-update-single-msg msg checksum origin-map)))))
|
||
(forward-line))))
|
||
;; Run checksum program if needed
|
||
(unless (and (eobp) (bobp))
|
||
(apply #'mh-xargs mh-checksum-cmd)
|
||
(goto-char (point-min))
|
||
(while (not (eobp))
|
||
(let* ((intermediate (funcall mh-checksum-parser))
|
||
(msg (car intermediate))
|
||
(checksum (cdr intermediate)))
|
||
(when msg
|
||
;; annotate
|
||
(mh-exec-cmd "anno" folder msg "-component" "X-MHE-Checksum"
|
||
"-nodate" "-text" checksum "-inplace")
|
||
;; update maps
|
||
(with-current-buffer folder
|
||
(mh-index-update-single-msg msg checksum origin-map)))
|
||
(forward-line)))))
|
||
(mh-index-write-data))
|
||
|
||
(defun mh-index-update-single-msg (msg checksum origin-map)
|
||
"Update various maps for one message.
|
||
MSG is an index folder message, CHECKSUM its MD5 hash and
|
||
ORIGIN-MAP, if non-nil, a hash table containing which maps each
|
||
message in the index folder to the folder and message that it was
|
||
copied from. The function updates the hash tables
|
||
`mh-index-msg-checksum-map' and `mh-index-checksum-origin-map'.
|
||
|
||
This function should only be called in the appropriate index
|
||
folder buffer."
|
||
(cond ((gethash checksum mh-index-checksum-origin-map)
|
||
(when origin-map
|
||
(let* ((intermediate (gethash msg origin-map))
|
||
(ofolder (car intermediate))
|
||
(omsg (cdr intermediate)))
|
||
;; This is most probably a duplicate. So eliminate it.
|
||
(call-process "rm" nil nil nil
|
||
(format "%s%s/%s" mh-user-path
|
||
(substring mh-current-folder 1) msg))
|
||
(when (gethash ofolder mh-index-data)
|
||
(remhash omsg (gethash ofolder mh-index-data))))))
|
||
(t
|
||
(setf (gethash msg mh-index-msg-checksum-map) checksum)
|
||
(when (and origin-map (gethash msg origin-map))
|
||
(setf (gethash checksum mh-index-checksum-origin-map)
|
||
(gethash msg origin-map))))))
|
||
|
||
|
||
(provide 'mh-search)
|
||
|
||
;; Local Variables:
|
||
;; indent-tabs-mode: nil
|
||
;; sentence-end-double-space: nil
|
||
;; End:
|
||
|
||
;;; mh-search ends here
|