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9ca1f945d9
We need to load `cl-lib' at run-time because we use more from it than
just macros. Never-the-less many, but not all libraries required it
only at compile-time, which we got away with because at least some
libraries already required it at run-time as well.
We use `cl-lib' and (currently to a lesser extend) `pcase' throughout
the code-base, which means that we should require these features in
most libraries.
In the past we tried to only require these features in just the
libraries that actually need them, without fully succeeding. We did
not succeed in doing so because that means we would have to check
every time that we use a function from these features whether they
are already being required in the current library.
An alternative would be to add the `require' forms at the top of every
library but that is a bit annoying too.
In order to make sure that these features are loaded when needed but
also to keep the noise down we only require them in "notmuch-lib.el",
which most other libraries require, and in most of the few libraries
that do not do so, namely "notmuch-draft.el", "notmuch-message.el" and
"notmuch-parser.el". ("coolj.el", "make-deps.el", various generated
libraries, and "notmuch-compat.el" are left touched.)
567 lines
21 KiB
EmacsLisp
567 lines
21 KiB
EmacsLisp
;;; notmuch-tag.el --- tag messages within emacs -*- lexical-binding: t -*-
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;;
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;; Copyright © Damien Cassou
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;; Copyright © Carl Worth
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;;
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;; This file is part of Notmuch.
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;;
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;; Notmuch is free software: you can redistribute it and/or modify it
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;; 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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;;
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;; Notmuch is distributed in the hope that it will be useful, but
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;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; General Public License 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 Notmuch. If not, see <https://www.gnu.org/licenses/>.
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;;
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;; Authors: Carl Worth <cworth@cworth.org>
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;; Damien Cassou <damien.cassou@gmail.com>
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;;; Code:
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(require 'crm)
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(require 'notmuch-lib)
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(declare-function notmuch-search-tag "notmuch"
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(tag-changes &optional beg end only-matched))
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(declare-function notmuch-show-tag "notmuch-show" (tag-changes))
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(declare-function notmuch-tree-tag "notmuch-tree" (tag-changes))
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(declare-function notmuch-jump "notmuch-jump" (action-map prompt))
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;;; Keys
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(define-widget 'notmuch-tag-key-type 'list
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"A single key tagging binding."
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:format "%v"
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:args '((list :inline t
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:format "%v"
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(key-sequence :tag "Key")
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(radio :tag "Tag operations"
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(repeat :tag "Tag list"
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(string :format "%v" :tag "change"))
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(variable :tag "Tag variable"))
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(string :tag "Name"))))
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(defcustom notmuch-tagging-keys
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`((,(kbd "a") notmuch-archive-tags "Archive")
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(,(kbd "u") notmuch-show-mark-read-tags "Mark read")
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(,(kbd "f") ("+flagged") "Flag")
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(,(kbd "s") ("+spam" "-inbox") "Mark as spam")
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(,(kbd "d") ("+deleted" "-inbox") "Delete"))
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"A list of keys and corresponding tagging operations.
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For each key (or key sequence) you can specify a sequence of
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tagging operations to apply, or a variable which contains a list
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of tagging operations such as `notmuch-archive-tags'. The final
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element is a name for this tagging operation. If the name is
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omitted or empty then the list of tag changes, or the variable
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name is used as the name.
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The key `notmuch-tag-jump-reverse-key' (k by default) should not
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be used (either as a key, or as the start of a key sequence) as
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it is already bound: it switches the menu to a menu of the
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reverse tagging operations. The reverse of a tagging operation is
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the same list of individual tag-ops but with `+tag' replaced by
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`-tag' and vice versa.
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If setting this variable outside of customize then it should be a
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list of triples (lists of three elements). Each triple should be
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of the form (key-binding tagging-operations name). KEY-BINDING
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can be a single character or a key sequence; TAGGING-OPERATIONS
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should either be a list of individual tag operations each of the
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form `+tag' or `-tag', or the variable name of a variable that is
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a list of tagging operations; NAME should be a name for the
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tagging operation, if omitted or empty than then name is taken
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from TAGGING-OPERATIONS."
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:tag "List of tagging bindings"
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:type '(repeat notmuch-tag-key-type)
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:group 'notmuch-tag)
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;;; Faces and Formats
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(define-widget 'notmuch-tag-format-type 'lazy
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"Customize widget for notmuch-tag-format and friends."
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:type '(alist :key-type (regexp :tag "Tag")
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:extra-offset -3
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:value-type
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(radio :format "%v"
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(const :tag "Hidden" nil)
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(set :tag "Modified"
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(string :tag "Display as")
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(list :tag "Face" :extra-offset -4
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(const :format "" :inline t
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(notmuch-apply-face tag))
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(list :format "%v"
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(const :format "" quote)
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custom-face-edit))
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(list :format "%v" :extra-offset -4
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(const :format "" :inline t
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(notmuch-tag-format-image-data tag))
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(choice :tag "Image"
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(const :tag "Star"
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(notmuch-tag-star-icon))
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(const :tag "Empty star"
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(notmuch-tag-star-empty-icon))
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(const :tag "Tag"
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(notmuch-tag-tag-icon))
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(string :tag "Custom")))
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(sexp :tag "Custom")))))
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(defface notmuch-tag-unread
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'((t :foreground "red"))
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"Default face used for the unread tag.
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Used in the default value of `notmuch-tag-formats'."
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:group 'notmuch-faces)
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(defface notmuch-tag-flagged
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'((((class color)
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(background dark))
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(:foreground "LightBlue1"))
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(((class color)
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(background light))
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(:foreground "blue")))
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"Face used for the flagged tag.
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Used in the default value of `notmuch-tag-formats'."
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:group 'notmuch-faces)
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(defcustom notmuch-tag-formats
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'(("unread" (propertize tag 'face 'notmuch-tag-unread))
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("flagged" (propertize tag 'face 'notmuch-tag-flagged)
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(notmuch-tag-format-image-data tag (notmuch-tag-star-icon))))
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"Custom formats for individual tags.
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This is an association list of the form ((MATCH EXPR...)...),
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mapping tag name regexps to lists of formatting expressions.
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The first entry whose MATCH regexp-matches a tag is used to
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format that tag. The regexp is implicitly anchored, so to match
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a literal tag name, just use that tag name (if it contains
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special regexp characters like \".\" or \"*\", these have to be
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escaped).
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The cdr of the matching entry gives a list of Elisp expressions
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that modify the tag. If the list is empty, the tag is simply
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hidden. Otherwise, each expression EXPR is evaluated in order:
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for the first expression, the variable `tag' is bound to the tag
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name; for each later expression, the variable `tag' is bound to
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the result of the previous expression. In this way, each
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expression can build on the formatting performed by the previous
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expression. The result of the last expression is displayed in
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place of the tag.
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For example, to replace a tag with another string, simply use
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that string as a formatting expression. To change the foreground
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of a tag to red, use the expression
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(propertize tag 'face '(:foreground \"red\"))
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See also `notmuch-tag-format-image', which can help replace tags
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with images."
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:group 'notmuch-search
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:group 'notmuch-show
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:group 'notmuch-faces
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:type 'notmuch-tag-format-type)
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(defface notmuch-tag-deleted
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'((((class color) (supports :strike-through "red")) :strike-through "red")
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(t :inverse-video t))
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"Face used to display deleted tags.
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Used in the default value of `notmuch-tag-deleted-formats'."
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:group 'notmuch-faces)
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(defcustom notmuch-tag-deleted-formats
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'(("unread" (notmuch-apply-face bare-tag `notmuch-tag-deleted))
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(".*" (notmuch-apply-face tag `notmuch-tag-deleted)))
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"Custom formats for tags when deleted.
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For deleted tags the formats in `notmuch-tag-formats' are applied
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first and then these formats are applied on top; that is `tag'
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passed to the function is the tag with all these previous
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formattings applied. The formatted can access the original
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unformatted tag as `bare-tag'.
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By default this shows deleted tags with strike-through in red,
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unless strike-through is not available (e.g., emacs is running in
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a terminal) in which case it uses inverse video. To hide deleted
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tags completely set this to
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'((\".*\" nil))
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See `notmuch-tag-formats' for full documentation."
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:group 'notmuch-show
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:group 'notmuch-faces
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:type 'notmuch-tag-format-type)
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(defface notmuch-tag-added
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'((t :underline "green"))
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"Default face used for added tags.
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Used in the default value for `notmuch-tag-added-formats'."
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:group 'notmuch-faces)
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(defcustom notmuch-tag-added-formats
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'((".*" (notmuch-apply-face tag 'notmuch-tag-added)))
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"Custom formats for tags when added.
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For added tags the formats in `notmuch-tag-formats' are applied
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first and then these formats are applied on top.
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To disable special formatting of added tags, set this variable to
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nil.
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See `notmuch-tag-formats' for full documentation."
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:group 'notmuch-show
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:group 'notmuch-faces
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:type 'notmuch-tag-format-type)
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;;; Icons
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(defun notmuch-tag-format-image-data (tag data)
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"Replace TAG with image DATA, if available.
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This function returns a propertized string that will display image
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DATA in place of TAG.This is designed for use in
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`notmuch-tag-formats'.
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DATA is the content of an SVG picture (e.g., as returned by
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`notmuch-tag-star-icon')."
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(propertize tag 'display
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`(image :type svg
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:data ,data
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:ascent center
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:mask heuristic)))
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(defun notmuch-tag-star-icon ()
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"Return SVG data representing a star icon.
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This can be used with `notmuch-tag-format-image-data'."
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"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>
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<svg version=\"1.1\" width=\"16\" height=\"16\">
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<g transform=\"translate(-242.81601,-315.59635)\">
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<path
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d=\"m 290.25762,334.31206 -17.64143,-11.77975 -19.70508,7.85447 5.75171,-20.41814 -13.55925,-16.31348 21.19618,-0.83936 11.325,-17.93675 7.34825,19.89939 20.55849,5.22795 -16.65471,13.13786 z\"
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transform=\"matrix(0.2484147,-0.02623394,0.02623394,0.2484147,174.63605,255.37691)\"
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style=\"fill:#ffff00;fill-rule:evenodd;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1\" />
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</g>
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</svg>")
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(defun notmuch-tag-star-empty-icon ()
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"Return SVG data representing an empty star icon.
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This can be used with `notmuch-tag-format-image-data'."
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"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>
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<svg version=\"1.1\" width=\"16\" height=\"16\">
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<g transform=\"translate(-242.81601,-315.59635)\">
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<path
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d=\"m 290.25762,334.31206 -17.64143,-11.77975 -19.70508,7.85447 5.75171,-20.41814 -13.55925,-16.31348 21.19618,-0.83936 11.325,-17.93675 7.34825,19.89939 20.55849,5.22795 -16.65471,13.13786 z\"
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transform=\"matrix(0.2484147,-0.02623394,0.02623394,0.2484147,174.63605,255.37691)\"
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style=\"fill:#d6d6d1;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1\" />
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</g>
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</svg>")
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(defun notmuch-tag-tag-icon ()
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"Return SVG data representing a tag icon.
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This can be used with `notmuch-tag-format-image-data'."
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"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>
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<svg version=\"1.1\" width=\"16\" height=\"16\">
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<g transform=\"translate(0,-1036.3622)\">
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<path
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d=\"m 0.44642857,1040.9336 12.50000043,0 2.700893,3.6161 -2.700893,3.616 -12.50000043,0 z\"
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style=\"fill:#ffff00;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:0.25;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1\" />
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</g>
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</svg>")
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;;; Format Handling
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(defvar notmuch-tag--format-cache (make-hash-table :test 'equal)
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"Cache of tag format lookup. Internal to `notmuch-tag-format-tag'.")
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(defun notmuch-tag-clear-cache ()
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"Clear the internal cache of tag formats."
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(clrhash notmuch-tag--format-cache))
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(defun notmuch-tag--get-formats (tag alist)
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"Find the first item whose car regexp-matches TAG."
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(save-match-data
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;; Don't use assoc-default since there's no way to distinguish a
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;; missing key from a present key with a null cdr.
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(cl-assoc tag alist
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:test (lambda (tag key)
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(and (eq (string-match key tag) 0)
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(= (match-end 0) (length tag)))))))
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(defun notmuch-tag--do-format (bare-tag tag formats)
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"Apply a tag-formats entry to TAG."
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(cond ((null formats) ;; - Tag not in `formats',
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tag) ;; the format is the tag itself.
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((null (cdr formats)) ;; - Tag was deliberately hidden,
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nil) ;; no format must be returned
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(t
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;; Tag was found and has formats, we must apply all the
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;; formats. TAG may be null so treat that as a special case.
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(let ((return-tag (copy-sequence (or tag ""))))
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(dolist (format (cdr formats))
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(setq return-tag
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(eval format
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`((bare-tag . ,bare-tag)
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(tag . ,return-tag)))))
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(if (and (null tag) (equal return-tag ""))
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nil
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return-tag)))))
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(defun notmuch-tag-format-tag (tags orig-tags tag)
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"Format TAG according to `notmuch-tag-formats'.
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TAGS and ORIG-TAGS are lists of the current tags and the original
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tags; tags which have been deleted (i.e., are in ORIG-TAGS but
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are not in TAGS) are shown using formats from
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`notmuch-tag-deleted-formats'; tags which have been added (i.e.,
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are in TAGS but are not in ORIG-TAGS) are shown using formats
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from `notmuch-tag-added-formats' and tags which have not been
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changed (the normal case) are shown using formats from
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`notmuch-tag-formats'."
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(let* ((tag-state (cond ((not (member tag tags)) 'deleted)
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((not (member tag orig-tags)) 'added)))
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(formatted-tag (gethash (cons tag tag-state)
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notmuch-tag--format-cache
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'missing)))
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(when (eq formatted-tag 'missing)
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(let ((base (notmuch-tag--get-formats tag notmuch-tag-formats))
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(over (cl-case tag-state
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(deleted (notmuch-tag--get-formats
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tag notmuch-tag-deleted-formats))
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(added (notmuch-tag--get-formats
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tag notmuch-tag-added-formats))
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(otherwise nil))))
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(setq formatted-tag (notmuch-tag--do-format tag tag base))
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(setq formatted-tag (notmuch-tag--do-format tag formatted-tag over))
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(puthash (cons tag tag-state) formatted-tag notmuch-tag--format-cache)))
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formatted-tag))
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(defun notmuch-tag-format-tags (tags orig-tags &optional face)
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"Return a string representing formatted TAGS."
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(let ((face (or face 'notmuch-tag-face))
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(all-tags (sort (delete-dups (append tags orig-tags nil)) #'string<)))
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(notmuch-apply-face
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(mapconcat #'identity
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;; nil indicated that the tag was deliberately hidden
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(delq nil (mapcar (apply-partially #'notmuch-tag-format-tag
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tags orig-tags)
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all-tags))
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" ")
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face
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t)))
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;;; Hooks
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(defcustom notmuch-before-tag-hook nil
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"Hooks that are run before tags of a message are modified.
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'tag-changes' will contain the tags that are about to be added or removed as
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a list of strings of the form \"+TAG\" or \"-TAG\".
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'query' will be a string containing the search query that determines
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the messages that are about to be tagged."
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:type 'hook
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:options '(notmuch-hl-line-mode)
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:group 'notmuch-hooks)
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(defcustom notmuch-after-tag-hook nil
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"Hooks that are run after tags of a message are modified.
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'tag-changes' will contain the tags that were added or removed as
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a list of strings of the form \"+TAG\" or \"-TAG\".
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'query' will be a string containing the search query that determines
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the messages that were tagged."
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:type 'hook
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:options '(notmuch-hl-line-mode)
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:group 'notmuch-hooks)
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;;; User Input
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(defvar notmuch-select-tag-history nil
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"Minibuffer history of `notmuch-select-tag-with-completion' function.")
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(defvar notmuch-read-tag-changes-history nil
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"Minibuffer history of `notmuch-read-tag-changes' function.")
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(defun notmuch-tag-completions (&rest search-terms)
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"Return a list of tags for messages matching SEARCH-TERMS.
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Return all tags if no search terms are given."
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(unless search-terms
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(setq search-terms (list "*")))
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(split-string
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(with-output-to-string
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(with-current-buffer standard-output
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(apply 'call-process notmuch-command nil t
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nil "search" "--output=tags" "--exclude=false" search-terms)))
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"\n+" t))
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(defun notmuch-select-tag-with-completion (prompt &rest search-terms)
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(completing-read prompt
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(apply #'notmuch-tag-completions search-terms)
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nil nil nil 'notmuch-select-tag-history))
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(defun notmuch-read-tag-changes (current-tags &optional prompt initial-input)
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"Prompt for tag changes in the minibuffer.
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CURRENT-TAGS is a list of tags that are present on the message
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or messages to be changed. These are offered as tag removal
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completions. CURRENT-TAGS may contain duplicates. PROMPT, if
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non-nil, is the query string to present in the minibuffer. It
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defaults to \"Tags\". INITIAL-INPUT, if non-nil, will be the
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initial input in the minibuffer."
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(let* ((all-tag-list (notmuch-tag-completions))
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(add-tag-list (mapcar (apply-partially 'concat "+") all-tag-list))
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(remove-tag-list (mapcar (apply-partially 'concat "-") current-tags))
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(tag-list (append add-tag-list remove-tag-list))
|
|
(prompt (concat (or prompt "Tags") " (+add -drop): "))
|
|
(crm-separator " ")
|
|
;; By default, space is bound to "complete word" function.
|
|
;; Re-bind it to insert a space instead. Note that <tab>
|
|
;; still does the completion.
|
|
(crm-local-completion-map
|
|
(let ((map (make-sparse-keymap)))
|
|
(set-keymap-parent map crm-local-completion-map)
|
|
(define-key map " " 'self-insert-command)
|
|
map)))
|
|
(delete "" (completing-read-multiple
|
|
prompt
|
|
;; Append the separator to each completion so when the
|
|
;; user completes a tag they can immediately begin
|
|
;; entering another. `completing-read-multiple'
|
|
;; ultimately splits the input on crm-separator, so we
|
|
;; don't need to strip this back off (we just need to
|
|
;; delete "empty" entries caused by trailing spaces).
|
|
(mapcar (lambda (tag-op) (concat tag-op crm-separator)) tag-list)
|
|
nil nil initial-input
|
|
'notmuch-read-tag-changes-history))))
|
|
|
|
;;; Tagging
|
|
|
|
(defun notmuch-update-tags (tags tag-changes)
|
|
"Return a copy of TAGS with additions and removals from TAG-CHANGES.
|
|
|
|
TAG-CHANGES must be a list of tags names, each prefixed with
|
|
either a \"+\" to indicate the tag should be added to TAGS if not
|
|
present or a \"-\" to indicate that the tag should be removed
|
|
from TAGS if present."
|
|
(let ((result-tags (copy-sequence tags)))
|
|
(dolist (tag-change tag-changes)
|
|
(let ((tag (and (not (string= tag-change ""))
|
|
(substring tag-change 1))))
|
|
(cl-case (aref tag-change 0)
|
|
(?+ (unless (member tag result-tags)
|
|
(push tag result-tags)))
|
|
(?- (setq result-tags (delete tag result-tags)))
|
|
(otherwise
|
|
(error "Changed tag must be of the form `+this_tag' or `-that_tag'")))))
|
|
(sort result-tags 'string<)))
|
|
|
|
(defconst notmuch-tag-argument-limit 1000
|
|
"Use batch tagging if the tagging query is longer than this.
|
|
|
|
This limits the length of arguments passed to the notmuch CLI to
|
|
avoid system argument length limits and performance problems.")
|
|
|
|
(defun notmuch-tag (query tag-changes)
|
|
"Add/remove tags in TAG-CHANGES to messages matching QUERY.
|
|
|
|
QUERY should be a string containing the search-terms.
|
|
TAG-CHANGES is a list of strings of the form \"+tag\" or
|
|
\"-tag\" to add or remove tags, respectively.
|
|
|
|
Note: Other code should always use this function to alter tags of
|
|
messages instead of running (notmuch-call-notmuch-process \"tag\" ..)
|
|
directly, so that hooks specified in notmuch-before-tag-hook and
|
|
notmuch-after-tag-hook will be run."
|
|
;; Perform some validation
|
|
(dolist (tag-change tag-changes)
|
|
(unless (string-match-p "^[-+]\\S-+$" tag-change)
|
|
(error "Tag must be of the form `+this_tag' or `-that_tag'")))
|
|
(unless query
|
|
(error "Nothing to tag!"))
|
|
(when tag-changes
|
|
(run-hooks 'notmuch-before-tag-hook)
|
|
(if (<= (length query) notmuch-tag-argument-limit)
|
|
(apply 'notmuch-call-notmuch-process "tag"
|
|
(append tag-changes (list "--" query)))
|
|
;; Use batch tag mode to avoid argument length limitations
|
|
(let ((batch-op (concat (mapconcat #'notmuch-hex-encode tag-changes " ")
|
|
" -- " query)))
|
|
(notmuch-call-notmuch-process :stdin-string batch-op "tag" "--batch")))
|
|
(run-hooks 'notmuch-after-tag-hook)))
|
|
|
|
(defun notmuch-tag-change-list (tags &optional reverse)
|
|
"Convert TAGS into a list of tag changes.
|
|
|
|
Add a \"+\" prefix to any tag in TAGS list that doesn't already
|
|
begin with a \"+\" or a \"-\". If REVERSE is non-nil, replace all
|
|
\"+\" prefixes with \"-\" and vice versa in the result."
|
|
(mapcar (lambda (str)
|
|
(let ((s (if (string-match "^[+-]" str) str (concat "+" str))))
|
|
(if reverse
|
|
(concat (if (= (string-to-char s) ?-) "+" "-")
|
|
(substring s 1))
|
|
s)))
|
|
tags))
|
|
|
|
(defvar notmuch-tag-jump-reverse-key "k"
|
|
"The key in tag-jump to switch to the reverse tag changes.")
|
|
|
|
(defun notmuch-tag-jump (reverse)
|
|
"Create a jump menu for tagging operations.
|
|
|
|
Creates and displays a jump menu for the tagging operations
|
|
specified in `notmuch-tagging-keys'. If REVERSE is set then it
|
|
offers a menu of the reverses of the operations specified in
|
|
`notmuch-tagging-keys'; i.e. each `+tag' is replaced by `-tag'
|
|
and vice versa."
|
|
;; In principle this function is simple, but it has to deal with
|
|
;; lots of cases: different modes (search/show/tree), whether a name
|
|
;; is specified, whether the tagging operations is a list of
|
|
;; tag-ops, or a symbol that evaluates to such a list, and whether
|
|
;; REVERSE is specified.
|
|
(interactive "P")
|
|
(let (action-map)
|
|
(pcase-dolist (`(,key ,tag ,name) notmuch-tagging-keys)
|
|
(let* ((tag-function (cl-case major-mode
|
|
(notmuch-search-mode #'notmuch-search-tag)
|
|
(notmuch-show-mode #'notmuch-show-tag)
|
|
(notmuch-tree-mode #'notmuch-tree-tag)))
|
|
(tag (if (symbolp tag)
|
|
(symbol-value tag)
|
|
tag))
|
|
(tag-change (if reverse
|
|
(notmuch-tag-change-list tag t)
|
|
tag))
|
|
(name (or (and (not (string= name ""))
|
|
name)
|
|
(and (symbolp name)
|
|
(symbol-name name))))
|
|
(name-string (if name
|
|
(if reverse
|
|
(concat "Reverse " name)
|
|
name)
|
|
(mapconcat #'identity tag-change " "))))
|
|
(push (list key name-string
|
|
`(lambda () (,tag-function ',tag-change)))
|
|
action-map)))
|
|
(push (list notmuch-tag-jump-reverse-key
|
|
(if reverse
|
|
"Forward tag changes "
|
|
"Reverse tag changes")
|
|
(apply-partially 'notmuch-tag-jump (not reverse)))
|
|
action-map)
|
|
(setq action-map (nreverse action-map))
|
|
(notmuch-jump action-map "Tag: ")))
|
|
|
|
;;; _
|
|
|
|
(provide 'notmuch-tag)
|
|
|
|
;;; notmuch-tag.el ends here
|