1796 lines
52 KiB
EmacsLisp
1796 lines
52 KiB
EmacsLisp
;;; shortdoc.el --- Short function summaries -*- lexical-binding: t -*-
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;; Copyright (C) 2020-2024 Free Software Foundation, Inc.
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;; Keywords: lisp, help
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;; Package: emacs
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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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;; This package lists functions based on various groupings.
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;;
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;; For instance, `string-trim' and `mapconcat' are `string' functions,
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;; so `M-x shortdoc RET string RET' will give an overview of functions
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;; that operate on strings.
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;;
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;; The documentation groups are created with the
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;; `define-short-documentation-group' macro.
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;;; Code:
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(require 'seq)
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(require 'text-property-search)
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(eval-when-compile (require 'cl-lib))
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(defgroup shortdoc nil
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"Short documentation."
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:group 'lisp)
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(defface shortdoc-heading
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'((t :inherit variable-pitch :height 1.3 :weight bold))
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"Face used for a heading."
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:version "28.1")
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(defface shortdoc-section
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'((t :inherit variable-pitch))
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"Face used for a section.")
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;;;###autoload
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(defun shortdoc--check (group functions)
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(let ((keywords '( :no-manual :args :eval :no-eval :no-value :no-eval*
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:result :result-string :eg-result :eg-result-string :doc)))
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(dolist (f functions)
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(when (consp f)
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(dolist (x f)
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(when (and (keywordp x) (not (memq x keywords)))
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(error "Shortdoc %s function `%s': bad keyword `%s'"
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group (car f) x)))))))
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;;;###autoload
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(progn
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(defvar shortdoc--groups nil)
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(defmacro define-short-documentation-group (group &rest functions)
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"Add GROUP to the list of defined documentation groups.
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FUNCTIONS is a list of elements on the form:
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(FUNC
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:no-manual BOOL
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:args ARGS
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:eval EVAL
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:no-eval EXAMPLE-FORM
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:no-value EXAMPLE-FORM
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:no-eval* EXAMPLE-FORM
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:result RESULT-FORM
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:result-string RESULT-STRING
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:eg-result RESULT-FORM
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:eg-result-string RESULT-STRING)
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FUNC is the function being documented.
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NO-MANUAL should be non-nil if FUNC isn't documented in the
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manual.
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ARGS is optional list of function FUNC's arguments. FUNC's
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signature is displayed automatically if ARGS is not present.
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Specifying ARGS might be useful where you don't want to document
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some of the uncommon arguments a function might have.
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While the `:no-manual' and `:args' property can be used for
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any (FUNC ..) form, all of the other properties shown above
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cannot be used simultaneously in such a form.
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Here are some common forms with examples of properties that go
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together:
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1. Document a form or string, and its evaluated return value.
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(FUNC
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:eval EVAL)
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If EVAL is a string, it will be inserted as is, and then that
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string will be `read' and evaluated.
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2. Document a form or string, but manually document its evaluation
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result. The provided form will not be evaluated.
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(FUNC
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:no-eval EXAMPLE-FORM
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:result RESULT-FORM) ;Use `:result-string' if value is in string form
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Using `:no-value' is the same as using `:no-eval'.
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Use `:no-eval*' instead of `:no-eval' where the successful
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execution of the documented form depends on some conditions.
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3. Document a form or string EXAMPLE-FORM. Also manually
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document an example result. This result could be unrelated to
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the documented form.
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(FUNC
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:no-eval EXAMPLE-FORM
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:eg-result RESULT-FORM) ;Use `:eg-result-string' if value is in string form
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A FUNC form can have any number of `:no-eval' (or `:no-value'),
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`:no-eval*', `:result', `:result-string', `:eg-result' and
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`:eg-result-string' properties."
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(declare (indent defun))
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(shortdoc--check group functions)
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`(progn
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(setq shortdoc--groups (delq (assq ',group shortdoc--groups)
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shortdoc--groups))
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(push (cons ',group ',functions) shortdoc--groups))))
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(define-short-documentation-group alist
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"Alist Basics"
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(assoc
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:eval (assoc 'foo '((foo . bar) (zot . baz))))
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(rassoc
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:eval (rassoc 'bar '((foo . bar) (zot . baz))))
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(assq
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:eval (assq 'foo '((foo . bar) (zot . baz))))
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(rassq
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:eval (rassq 'bar '((foo . bar) (zot . baz))))
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(assoc-string
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:eval (assoc-string "foo" '(("foo" . "bar") ("zot" "baz"))))
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"Manipulating Alists"
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(assoc-delete-all
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:eval (assoc-delete-all "b" (list '("a" . a) '("b" . b) '("b" . c))))
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(assq-delete-all
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:eval (assq-delete-all 2 (list '(1 . a) '(2 . b) '(2 . c))))
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(rassq-delete-all
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:eval (rassq-delete-all 'b (list '(1 . a) '(2 . b) '(2 . c))))
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(alist-get
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:eval (let ((foo '((bar . baz))))
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(setf (alist-get 'bar foo) 'zot)
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foo))
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"Misc"
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(assoc-default
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:eval (assoc-default "foobar" '(("foo" . baz)) #'string-match))
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(copy-alist
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:eval (let* ((old '((foo . bar)))
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(new (copy-alist old)))
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(eq old new)))
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;; FIXME: Outputs "\.rose" for the symbol `.rose'. It would be
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;; better if that could be cleaned up.
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(let-alist
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:eval (let ((colors '((rose . red)
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(lily . white))))
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(let-alist colors
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(if (eq .rose 'red)
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.lily)))))
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(define-short-documentation-group string
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"Making Strings"
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(make-string
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:args (length init)
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:eval "(make-string 5 ?x)")
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(string
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:eval "(string ?a ?b ?c)")
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(concat
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:eval (concat "foo" "bar" "zot"))
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(string-join
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:no-manual t
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:eval (string-join '("foo" "bar" "zot") " "))
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(mapconcat
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:eval (mapconcat (lambda (a) (concat "[" a "]"))
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'("foo" "bar" "zot") " "))
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(string-pad
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:eval (string-pad "foo" 5)
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:eval (string-pad "foobar" 5)
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:eval (string-pad "foo" 5 ?- t))
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(mapcar
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:eval (mapcar #'identity "123"))
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(format
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:eval (format "This number is %d" 4))
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"Manipulating Strings"
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(substring
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:eval (substring "abcde" 1 3)
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:eval (substring "abcde" 2)
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:eval (substring "abcde" 1 -1)
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:eval (substring "abcde" -4 4))
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(string-limit
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:eval (string-limit "foobar" 3)
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:eval (string-limit "foobar" 3 t)
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:eval (string-limit "foobar" 10)
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:eval (string-limit "fo好" 3 nil 'utf-8))
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(truncate-string-to-width
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:eval (truncate-string-to-width "foobar" 3)
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:eval (truncate-string-to-width "你好bar" 5))
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(split-string
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:eval (split-string "foo bar")
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:eval (split-string "|foo|bar|" "|")
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:eval (split-string "|foo|bar|" "|" t))
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(split-string-and-unquote
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:eval (split-string-and-unquote "foo \"bar zot\""))
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(split-string-shell-command
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:eval (split-string-shell-command "ls /tmp/'foo bar'"))
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(string-lines
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:eval (string-lines "foo\n\nbar")
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:eval (string-lines "foo\n\nbar" t))
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(string-replace
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:eval (string-replace "foo" "bar" "foozot"))
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(replace-regexp-in-string
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:eval (replace-regexp-in-string "[a-z]+" "_" "*foo*"))
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(string-trim
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:args (string)
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:doc "Trim STRING of leading and trailing white space."
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:eval (string-trim " foo "))
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(string-trim-left
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:eval (string-trim-left "oofoo" "o+"))
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(string-trim-right
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:eval (string-trim-right "barkss" "s+"))
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(string-truncate-left
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:no-manual t
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:eval (string-truncate-left "longstring" 8))
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(string-remove-suffix
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:no-manual t
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:eval (string-remove-suffix "bar" "foobar"))
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(string-remove-prefix
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:no-manual t
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:eval (string-remove-prefix "foo" "foobar"))
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(string-chop-newline
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:eval (string-chop-newline "foo\n"))
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(string-clean-whitespace
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:eval (string-clean-whitespace " foo bar "))
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(string-fill
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:eval (string-fill "Three short words" 12)
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:eval (string-fill "Long-word" 3))
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(reverse
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:eval (reverse "foo"))
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(substring-no-properties
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:eval (substring-no-properties (propertize "foobar" 'face 'bold) 0 3))
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(try-completion
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:eval (try-completion "foo" '("foobar" "foozot" "gazonk")))
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"Unicode Strings"
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(string-glyph-split
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:eval (string-glyph-split "Hello, 👼🏻🧑🏼🤝🧑🏻"))
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(string-glyph-compose
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:eval (string-glyph-compose "Å"))
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(string-glyph-decompose
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:eval (string-glyph-decompose "Å"))
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"Predicates for Strings"
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(string-equal
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:eval (string-equal "abc" "abc")
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:eval (string-equal "abc" "ABC"))
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(string-equal-ignore-case
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:eval (string-equal-ignore-case "foo" "FOO"))
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(equal
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:eval (equal "foo" "foo"))
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(cl-equalp
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:eval (cl-equalp "Foo" "foo"))
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(stringp
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:eval (stringp "a")
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:eval (stringp 'a)
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:eval "(stringp ?a)")
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(string-or-null-p
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:eval (string-or-null-p "a")
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:eval (string-or-null-p nil))
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(char-or-string-p
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:eval "(char-or-string-p ?a)"
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:eval (char-or-string-p "a"))
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(string-empty-p
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:no-manual t
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:eval (string-empty-p ""))
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(string-blank-p
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:no-manual t
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:eval (string-blank-p " \n"))
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(string-lessp
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:eval (string-lessp "abc" "def")
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:eval (string-lessp "pic4.png" "pic32.png")
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:eval (string-lessp "1.1" "1.2"))
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(string-greaterp
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:eval (string-greaterp "foo" "bar"))
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(string-version-lessp
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:eval (string-version-lessp "pic4.png" "pic32.png")
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:eval (string-version-lessp "1.9.3" "1.10.2"))
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(string-collate-lessp
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:eval (string-collate-lessp "abc" "abd"))
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(string-prefix-p
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:eval (string-prefix-p "foo" "foobar"))
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(string-suffix-p
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:eval (string-suffix-p "bar" "foobar"))
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"Case Manipulation"
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(upcase
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:eval (upcase "foo"))
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(downcase
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:eval (downcase "FOObar"))
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(capitalize
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:eval (capitalize "foo bar zot"))
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(upcase-initials
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:eval (upcase-initials "The CAT in the hAt"))
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"Converting Strings"
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(string-to-number
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:eval (string-to-number "42")
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:eval (string-to-number "deadbeef" 16)
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:eval (string-to-number "2.5e+03"))
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(number-to-string
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:eval (number-to-string 42))
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(char-uppercase-p
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:eval "(char-uppercase-p ?A)"
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:eval "(char-uppercase-p ?a)")
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"Data About Strings"
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(length
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:eval (length "foo")
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:eval (length "avocado: 🥑"))
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(string-width
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:eval (string-width "foo")
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:eval (string-width "avocado: 🥑"))
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(string-pixel-width
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:eval (string-pixel-width "foo")
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:eval (string-pixel-width "avocado: 🥑"))
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(string-search
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:eval (string-search "bar" "foobarzot"))
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(assoc-string
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:eval (assoc-string "foo" '(("a" 1) (foo 2))))
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(seq-position
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:eval "(seq-position \"foobarzot\" ?z)"))
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(define-short-documentation-group file-name
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"File Name Manipulation"
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(file-name-directory
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:eval (file-name-directory "/tmp/foo")
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:eval (file-name-directory "/tmp/foo/"))
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(file-name-nondirectory
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:eval (file-name-nondirectory "/tmp/foo")
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:eval (file-name-nondirectory "/tmp/foo/"))
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(file-name-sans-versions
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:args (filename)
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:eval (file-name-sans-versions "/tmp/foo~"))
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(file-name-extension
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:eval (file-name-extension "/tmp/foo.txt"))
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(file-name-sans-extension
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:eval (file-name-sans-extension "/tmp/foo.txt"))
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(file-name-with-extension
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:eval (file-name-with-extension "foo.txt" "bin")
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:eval (file-name-with-extension "foo" "bin"))
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(file-name-base
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:eval (file-name-base "/tmp/foo.txt"))
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(file-relative-name
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:eval (file-relative-name "/tmp/foo" "/tmp"))
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(file-name-split
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:eval (file-name-split "/tmp/foo")
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:eval (file-name-split "foo/bar"))
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(make-temp-name
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:eval (make-temp-name "/tmp/foo-"))
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(file-name-concat
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:eval (file-name-concat "/tmp/" "foo")
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:eval (file-name-concat "/tmp" "foo")
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:eval (file-name-concat "/tmp" "foo" "bar/" "zot")
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:eval (file-name-concat "/tmp" "~"))
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(expand-file-name
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:eval (expand-file-name "foo" "/tmp/")
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:eval (expand-file-name "foo" "/tmp///")
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:eval (expand-file-name "foo" "/tmp/foo/.././")
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:eval (expand-file-name "~" "/tmp/"))
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(substitute-in-file-name
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:eval (substitute-in-file-name "$HOME/foo"))
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"Directory Functions"
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(file-name-as-directory
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:eval (file-name-as-directory "/tmp/foo"))
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(directory-file-name
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:eval (directory-file-name "/tmp/foo/"))
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(abbreviate-file-name
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:no-eval (abbreviate-file-name "/home/some-user")
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:eg-result "~some-user")
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(file-name-parent-directory
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:eval (file-name-parent-directory "/foo/bar")
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:eval (file-name-parent-directory "/foo/")
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:eval (file-name-parent-directory "foo/bar")
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:eval (file-name-parent-directory "foo"))
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"Quoted File Names"
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(file-name-quote
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:args (name)
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:eval (file-name-quote "/tmp/foo"))
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(file-name-unquote
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:args (name)
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:eval (file-name-unquote "/:/tmp/foo"))
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"Predicates"
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(file-name-absolute-p
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:eval (file-name-absolute-p "/tmp/foo")
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:eval (file-name-absolute-p "foo"))
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(directory-name-p
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:eval (directory-name-p "/tmp/foo/"))
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(file-name-quoted-p
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:eval (file-name-quoted-p "/:/tmp/foo")))
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(define-short-documentation-group file
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"Inserting Contents"
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(insert-file-contents
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:no-eval (insert-file-contents "/tmp/foo")
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:eg-result ("/tmp/foo" 6))
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(insert-file-contents-literally
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:no-eval (insert-file-contents-literally "/tmp/foo")
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:eg-result ("/tmp/foo" 6))
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(find-file
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:no-eval (find-file "/tmp/foo")
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:eg-result-string "#<buffer foo>")
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"Predicates"
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(file-symlink-p
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:no-eval (file-symlink-p "/tmp/foo")
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:eg-result t)
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(file-directory-p
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:no-eval (file-directory-p "/tmp")
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:eg-result t)
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(file-regular-p
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:no-eval (file-regular-p "/tmp/foo")
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:eg-result t)
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(file-exists-p
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:no-eval (file-exists-p "/tmp/foo")
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:eg-result t)
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(file-readable-p
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:no-eval (file-readable-p "/tmp/foo")
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:eg-result t)
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(file-writable-p
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:no-eval (file-writable-p "/tmp/foo")
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:eg-result t)
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(file-accessible-directory-p
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:no-eval (file-accessible-directory-p "/tmp")
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:eg-result t)
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(file-executable-p
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:no-eval (file-executable-p "/bin/cat")
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:eg-result t)
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(file-newer-than-file-p
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:no-eval (file-newer-than-file-p "/tmp/foo" "/tmp/bar")
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:eg-result nil)
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(file-has-changed-p
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:no-eval (file-has-changed-p "/tmp/foo")
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:eg-result t)
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(file-equal-p
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:no-eval (file-equal-p "/tmp/foo" "/tmp/bar")
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:eg-result nil)
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(file-in-directory-p
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:no-eval (file-in-directory-p "/tmp/foo" "/tmp/")
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:eg-result t)
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(file-locked-p
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:no-eval (file-locked-p "/tmp/foo")
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:eg-result nil)
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"Information"
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(file-attributes
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:no-eval* (file-attributes "/tmp"))
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(file-truename
|
|
:no-eval (file-truename "/tmp/foo/bar")
|
|
:eg-result "/tmp/foo/zot")
|
|
(file-chase-links
|
|
:no-eval (file-chase-links "/tmp/foo/bar")
|
|
:eg-result "/tmp/foo/zot")
|
|
(vc-responsible-backend
|
|
:args (file &optional no-error)
|
|
:no-eval (vc-responsible-backend "/src/foo/bar.c")
|
|
:eg-result Git)
|
|
(file-acl
|
|
:no-eval (file-acl "/tmp/foo")
|
|
:eg-result "user::rw-\ngroup::r--\nother::r--\n")
|
|
(file-extended-attributes
|
|
:no-eval* (file-extended-attributes "/tmp/foo"))
|
|
(file-selinux-context
|
|
:no-eval* (file-selinux-context "/tmp/foo"))
|
|
(locate-file
|
|
:no-eval (locate-file "syslog" '("/var/log" "/usr/bin"))
|
|
:eg-result "/var/log/syslog")
|
|
(executable-find
|
|
:no-eval (executable-find "ls")
|
|
:eg-result "/usr/bin/ls")
|
|
"Creating"
|
|
(make-temp-file
|
|
:no-eval (make-temp-file "/tmp/foo-")
|
|
:eg-result "/tmp/foo-ZcXFMj")
|
|
(make-nearby-temp-file
|
|
:no-eval (make-nearby-temp-file "/tmp/foo-")
|
|
:eg-result "/tmp/foo-xe8iON")
|
|
(write-region
|
|
:no-value (write-region (point-min) (point-max) "/tmp/foo"))
|
|
"Directories"
|
|
(make-directory
|
|
:no-value (make-directory "/tmp/bar/zot/" t))
|
|
(directory-files
|
|
:no-eval (directory-files "/tmp/")
|
|
:eg-result ("." ".." ".ICE-unix" ".Test-unix"))
|
|
(directory-files-recursively
|
|
:no-eval (directory-files-recursively "/tmp/" "\\.png\\'")
|
|
:eg-result ("/tmp/foo.png" "/tmp/zot.png" "/tmp/bar/foobar.png"))
|
|
(directory-files-and-attributes
|
|
:no-eval* (directory-files-and-attributes "/tmp/foo"))
|
|
(file-expand-wildcards
|
|
:no-eval (file-expand-wildcards "/tmp/*.png")
|
|
:eg-result ("/tmp/foo.png" "/tmp/zot.png")
|
|
:no-eval (file-expand-wildcards "/*/foo.png")
|
|
:eg-result ("/tmp/foo.png" "/var/foo.png"))
|
|
(locate-dominating-file
|
|
:no-eval (locate-dominating-file "foo.png" "/tmp/foo/bar/zot")
|
|
:eg-result "/tmp/foo.png")
|
|
(copy-directory
|
|
:no-value (copy-directory "/tmp/bar/" "/tmp/barcopy"))
|
|
(delete-directory
|
|
:no-value (delete-directory "/tmp/bar/"))
|
|
"File Operations"
|
|
(rename-file
|
|
:no-value (rename-file "/tmp/foo" "/tmp/newname"))
|
|
(copy-file
|
|
:no-value (copy-file "/tmp/foo" "/tmp/foocopy"))
|
|
(delete-file
|
|
:no-value (delete-file "/tmp/foo"))
|
|
(make-empty-file
|
|
:no-value (make-empty-file "/tmp/foo"))
|
|
(make-symbolic-link
|
|
:no-value (make-symbolic-link "/tmp/foo" "/tmp/foosymlink"))
|
|
(add-name-to-file
|
|
:no-value (add-name-to-file "/tmp/foo" "/tmp/bar"))
|
|
(set-file-modes
|
|
:no-value "(set-file-modes \"/tmp/foo\" #o644)")
|
|
(set-file-times
|
|
:no-value (set-file-times "/tmp/foo"))
|
|
"File Modes"
|
|
(set-default-file-modes
|
|
:no-value "(set-default-file-modes #o755)")
|
|
(default-file-modes
|
|
:no-eval (default-file-modes)
|
|
:eg-result-string "#o755")
|
|
(file-modes-symbolic-to-number
|
|
:no-eval (file-modes-symbolic-to-number "a+r")
|
|
:eg-result-string "#o444")
|
|
(file-modes-number-to-symbolic
|
|
:eval "(file-modes-number-to-symbolic #o444)")
|
|
(set-file-extended-attributes
|
|
:no-eval (set-file-extended-attributes
|
|
"/tmp/foo" '((acl . "group::rxx")))
|
|
:eg-result t)
|
|
(set-file-selinux-context
|
|
:no-eval (set-file-selinux-context
|
|
"/tmp/foo" '(unconfined_u object_r user_home_t s0))
|
|
:eg-result t)
|
|
(set-file-acl
|
|
:no-eval (set-file-acl "/tmp/foo" "group::rxx")
|
|
:eg-result t))
|
|
|
|
(define-short-documentation-group hash-table
|
|
"Hash Table Basics"
|
|
(make-hash-table
|
|
:no-eval (make-hash-table)
|
|
:result-string "#s(hash-table ...)")
|
|
(puthash
|
|
:no-eval (puthash 'key "value" table))
|
|
(gethash
|
|
:no-eval (gethash 'key table)
|
|
:eg-result "value")
|
|
(remhash
|
|
:no-eval (remhash 'key table)
|
|
:result nil)
|
|
(clrhash
|
|
:no-eval (clrhash table)
|
|
:result-string "#s(hash-table ...)")
|
|
(maphash
|
|
:no-eval (maphash (lambda (key value) (message value)) table)
|
|
:result nil)
|
|
"Other Hash Table Functions"
|
|
(hash-table-p
|
|
:eval (hash-table-p 123))
|
|
(copy-hash-table
|
|
:no-eval (copy-hash-table table)
|
|
:result-string "#s(hash-table ...)")
|
|
(hash-table-count
|
|
:no-eval (hash-table-count table)
|
|
:eg-result 15))
|
|
|
|
(define-short-documentation-group list
|
|
"Making Lists"
|
|
(make-list
|
|
:eval (make-list 5 'a))
|
|
(cons
|
|
:eval (cons 1 '(2 3 4)))
|
|
(list
|
|
:eval (list 1 2 3))
|
|
(number-sequence
|
|
:eval (number-sequence 5 8))
|
|
(ensure-list
|
|
:eval (ensure-list "foo")
|
|
:eval (ensure-list '(1 2 3)))
|
|
"Operations on Lists"
|
|
(append
|
|
:eval (append '("foo" "bar") '("zot")))
|
|
(copy-tree
|
|
:eval (copy-tree '(1 (2 3) 4)))
|
|
(flatten-tree
|
|
:eval (flatten-tree '(1 (2 3) 4)))
|
|
(car
|
|
:eval (car '(one two three))
|
|
:eval (car '(one . two))
|
|
:eval (car nil))
|
|
(cdr
|
|
:eval (cdr '(one two three))
|
|
:eval (cdr '(one . two))
|
|
:eval (cdr nil))
|
|
(last
|
|
:eval (last '(one two three)))
|
|
(butlast
|
|
:eval (butlast '(one two three)))
|
|
(nbutlast
|
|
:eval (nbutlast (list 'one 'two 'three)))
|
|
(nth
|
|
:eval (nth 1 '(one two three)))
|
|
(nthcdr
|
|
:eval (nthcdr 1 '(one two three)))
|
|
(take
|
|
:eval (take 3 '(one two three four)))
|
|
(ntake
|
|
:eval (ntake 3 (list 'one 'two 'three 'four)))
|
|
(elt
|
|
:eval (elt '(one two three) 1))
|
|
(car-safe
|
|
:eval (car-safe '(one two three)))
|
|
(cdr-safe
|
|
:eval (cdr-safe '(one two three)))
|
|
(push
|
|
:no-eval* (push 'a list))
|
|
(pop
|
|
:no-eval* (pop list))
|
|
(setcar
|
|
:no-eval (setcar list 'c)
|
|
:result c)
|
|
(setcdr
|
|
:no-eval (setcdr list (list c))
|
|
:result '(c))
|
|
(nconc
|
|
:eval (nconc (list 1) (list 2 3 4)))
|
|
(delq
|
|
:eval (delq 'a (list 'a 'b 'c 'd)))
|
|
(delete
|
|
:eval (delete 2 (list 1 2 3 4))
|
|
:eval (delete "a" (list "a" "b" "c" "d")))
|
|
(remq
|
|
:eval (remq 'b '(a b c)))
|
|
(remove
|
|
:eval (remove 2 '(1 2 3 4))
|
|
:eval (remove "a" '("a" "b" "c" "d")))
|
|
(delete-dups
|
|
:eval (delete-dups (list 1 2 4 3 2 4)))
|
|
"Mapping Over Lists"
|
|
(mapcar
|
|
:eval (mapcar #'list '(1 2 3)))
|
|
(mapcan
|
|
:eval (mapcan #'list '(1 2 3)))
|
|
(mapc
|
|
:eval (mapc #'insert '("1" "2" "3")))
|
|
(seq-reduce
|
|
:eval (seq-reduce #'+ '(1 2 3) 0))
|
|
(mapconcat
|
|
:eval (mapconcat #'identity '("foo" "bar") "|"))
|
|
"Predicates"
|
|
(listp
|
|
:eval (listp '(1 2 3))
|
|
:eval (listp nil)
|
|
:eval (listp '(1 . 2)))
|
|
(consp
|
|
:eval (consp '(1 2 3))
|
|
:eval (consp nil))
|
|
(proper-list-p
|
|
:eval (proper-list-p '(1 2 3))
|
|
:eval (proper-list-p nil)
|
|
:eval (proper-list-p '(1 . 2)))
|
|
(null
|
|
:eval (null nil))
|
|
(atom
|
|
:eval (atom 'a))
|
|
(nlistp
|
|
:eval (nlistp '(1 2 3))
|
|
:eval (nlistp t)
|
|
:eval (nlistp '(1 . 2)))
|
|
"Finding Elements"
|
|
(memq
|
|
:eval (memq 'b '(a b c)))
|
|
(memql
|
|
:eval (memql 2.0 '(1.0 2.0 3.0)))
|
|
(member
|
|
:eval (member 2 '(1 2 3))
|
|
:eval (member "b" '("a" "b" "c")))
|
|
(member-ignore-case
|
|
:eval (member-ignore-case "foo" '("bar" "Foo" "zot")))
|
|
"Association Lists"
|
|
(assoc
|
|
:eval (assoc "b" '(("a" . 1) ("b" . 2))))
|
|
(rassoc
|
|
:eval (rassoc "b" '((1 . "a") (2 . "b"))))
|
|
(assq
|
|
:eval (assq 'b '((a . 1) (b . 2))))
|
|
(rassq
|
|
:eval (rassq 'b '((1 . a) (2 . b))))
|
|
(assoc-string
|
|
:eval (assoc-string "foo" '(("a" 1) (foo 2))))
|
|
(alist-get
|
|
:eval (alist-get 2 '((1 . a) (2 . b))))
|
|
(assoc-default
|
|
:eval (assoc-default 2 '((1 . a) (2 . b) #'=)))
|
|
(copy-alist
|
|
:eval (copy-alist '((1 . a) (2 . b))))
|
|
(assoc-delete-all
|
|
:eval (assoc-delete-all "b" (list '("a" . a) '("b" . b) '("b" . c))))
|
|
(assq-delete-all
|
|
:eval (assq-delete-all 2 (list '(1 . a) '(2 . b) '(2 . c))))
|
|
(rassq-delete-all
|
|
:eval (rassq-delete-all 'b (list '(1 . a) '(2 . b) '(2 . c))))
|
|
"Property Lists"
|
|
(plist-get
|
|
:eval (plist-get '(a 1 b 2 c 3) 'b))
|
|
(plist-put
|
|
:no-eval (setq plist (plist-put plist 'd 4))
|
|
:eg-result (a 1 b 2 c 3 d 4))
|
|
(plist-member
|
|
:eval (plist-member '(a 1 b 2 c 3) 'b))
|
|
"Data About Lists"
|
|
(length
|
|
:eval (length '(a b c)))
|
|
(length<
|
|
:eval (length< '(a b c) 1))
|
|
(length>
|
|
:eval (length> '(a b c) 1))
|
|
(length=
|
|
:eval (length= '(a b c) 3))
|
|
(safe-length
|
|
:eval (safe-length '(a b c))))
|
|
|
|
(define-short-documentation-group symbol
|
|
"Making symbols"
|
|
(intern
|
|
:eval (intern "abc"))
|
|
(intern-soft
|
|
:eval (intern-soft "list")
|
|
:eval (intern-soft "Phooey!"))
|
|
(make-symbol
|
|
:eval (make-symbol "abc"))
|
|
(gensym
|
|
:no-eval (gensym)
|
|
:eg-result g37)
|
|
"Comparing symbols"
|
|
(eq
|
|
:eval (eq 'abc 'abc)
|
|
:eval (eq 'abc 'abd))
|
|
(eql
|
|
:eval (eql 'abc 'abc))
|
|
(equal
|
|
:eval (equal 'abc 'abc))
|
|
"Name"
|
|
(symbol-name
|
|
:eval (symbol-name 'abc))
|
|
"Obarrays"
|
|
(obarray-make
|
|
:eval (obarray-make))
|
|
(obarrayp
|
|
:eval (obarrayp (obarray-make))
|
|
:eval (obarrayp nil))
|
|
(unintern
|
|
:no-eval (unintern "abc" my-obarray)
|
|
:eg-result t)
|
|
(mapatoms
|
|
:no-eval (mapatoms (lambda (symbol) (print symbol)) my-obarray))
|
|
(obarray-clear
|
|
:no-eval (obarray-clear my-obarray)))
|
|
|
|
(define-short-documentation-group comparison
|
|
"General-purpose"
|
|
(eq
|
|
:eval (eq 'a 'a)
|
|
:eval "(eq ?A ?A)"
|
|
:eval (let ((x (list 'a "b" '(c) 4 5.0)))
|
|
(eq x x)))
|
|
(eql
|
|
:eval (eql 2 2)
|
|
:eval (eql 2.0 2.0)
|
|
:eval (eql 2.0 2))
|
|
(equal
|
|
:eval (equal "abc" "abc")
|
|
:eval (equal 2.0 2.0)
|
|
:eval (equal 2.0 2)
|
|
:eval (equal '(a "b" (c) 4.0) '(a "b" (c) 4.0)))
|
|
(cl-equalp
|
|
:eval (cl-equalp 2 2.0)
|
|
:eval (cl-equalp "ABC" "abc"))
|
|
"Numeric"
|
|
(=
|
|
:args (number &rest numbers)
|
|
:eval (= 2 2)
|
|
:eval (= 2.0 2.0)
|
|
:eval (= 2.0 2)
|
|
:eval (= 4 4 4 4))
|
|
(/=
|
|
:eval (/= 4 4))
|
|
(<
|
|
:args (number &rest numbers)
|
|
:eval (< 4 4)
|
|
:eval (< 1 2 3))
|
|
(<=
|
|
:args (number &rest numbers)
|
|
:eval (<= 4 4)
|
|
:eval (<= 1 2 2 3))
|
|
(>
|
|
:args (number &rest numbers)
|
|
:eval (> 4 4)
|
|
:eval (> 3 2 1))
|
|
(>=
|
|
:args (number &rest numbers)
|
|
:eval (>= 4 4)
|
|
:eval (>= 3 2 2 1))
|
|
"String"
|
|
(string-equal
|
|
:eval (string-equal "abc" "abc")
|
|
:eval (string-equal "abc" "ABC"))
|
|
(string-equal-ignore-case
|
|
:eval (string-equal-ignore-case "abc" "ABC"))
|
|
(string-lessp
|
|
:eval (string-lessp "abc" "abd")
|
|
:eval (string-lessp "abc" "abc")
|
|
:eval (string-lessp "pic4.png" "pic32.png"))
|
|
(string-greaterp
|
|
:eval (string-greaterp "abd" "abc")
|
|
:eval (string-greaterp "abc" "abc"))
|
|
(string-version-lessp
|
|
:eval (string-version-lessp "pic4.png" "pic32.png")
|
|
:eval (string-version-lessp "1.9.3" "1.10.2"))
|
|
(string-collate-lessp
|
|
:eval (string-collate-lessp "abc" "abd")))
|
|
|
|
(define-short-documentation-group vector
|
|
"Making Vectors"
|
|
(make-vector
|
|
:eval (make-vector 5 "foo"))
|
|
(vector
|
|
:eval (vector 1 "b" 3))
|
|
"Operations on Vectors"
|
|
(vectorp
|
|
:eval (vectorp [1])
|
|
:eval (vectorp "1"))
|
|
(vconcat
|
|
:eval (vconcat '(1 2) [3 4]))
|
|
(append
|
|
:eval (append [1 2] nil))
|
|
(length
|
|
:eval (length [1 2 3]))
|
|
(seq-reduce
|
|
:eval (seq-reduce #'+ [1 2 3] 0))
|
|
(seq-subseq
|
|
:eval (seq-subseq [1 2 3 4 5] 1 3)
|
|
:eval (seq-subseq [1 2 3 4 5] 1))
|
|
(copy-tree
|
|
:eval (copy-tree [1 (2 3) [4 5]] t))
|
|
"Mapping Over Vectors"
|
|
(mapcar
|
|
:eval (mapcar #'identity [1 2 3]))
|
|
(mapc
|
|
:eval (mapc #'insert ["1" "2" "3"])))
|
|
|
|
(define-short-documentation-group regexp
|
|
"Matching Strings"
|
|
(replace-regexp-in-string
|
|
:eval (replace-regexp-in-string "[a-z]+" "_" "*foo*"))
|
|
(string-match-p
|
|
:eval (string-match-p "^[fo]+" "foobar"))
|
|
"Looking in Buffers"
|
|
(re-search-forward
|
|
:no-eval (re-search-forward "^foo$" nil t)
|
|
:eg-result 43)
|
|
(re-search-backward
|
|
:no-eval (re-search-backward "^foo$" nil t)
|
|
:eg-result 43)
|
|
(looking-at-p
|
|
:no-eval (looking-at-p "f[0-9]")
|
|
:eg-result t)
|
|
"Match Data"
|
|
(match-string
|
|
:eval (and (string-match "^\\([fo]+\\)b" "foobar")
|
|
(match-string 0 "foobar")))
|
|
(match-beginning
|
|
:no-eval (match-beginning 1)
|
|
:eg-result 0)
|
|
(match-end
|
|
:no-eval (match-end 1)
|
|
:eg-result 3)
|
|
(save-match-data
|
|
:no-eval (save-match-data ...))
|
|
"Replacing Match"
|
|
(replace-match
|
|
:no-eval (replace-match "new")
|
|
:eg-result nil)
|
|
(match-substitute-replacement
|
|
:no-eval (match-substitute-replacement "new")
|
|
:eg-result "new")
|
|
(replace-regexp-in-region
|
|
:no-value (replace-regexp-in-region "[0-9]+" "Num \\&"))
|
|
"Utilities"
|
|
(regexp-quote
|
|
:eval (regexp-quote "foo.*bar"))
|
|
(regexp-opt
|
|
:eval (regexp-opt '("foo" "bar")))
|
|
(regexp-opt-depth
|
|
:eval (regexp-opt-depth "\\(a\\(b\\)\\)"))
|
|
(regexp-opt-charset
|
|
:eval (regexp-opt-charset '(?a ?b ?c ?d ?e)))
|
|
"The `rx' Structured Regexp Notation"
|
|
(rx
|
|
:eval (rx "IP=" (+ digit) (= 3 "." (+ digit))))
|
|
(rx-to-string
|
|
:eval (rx-to-string '(| "foo" "bar")))
|
|
(rx-define
|
|
:no-eval "(and (rx-define haskell-comment (seq \"--\" (zero-or-more nonl)))
|
|
(rx haskell-comment))"
|
|
:result "--.*")
|
|
(rx-let
|
|
:eval "(rx-let ((comma-separated (item) (seq item (0+ \",\" item)))
|
|
(number (1+ digit))
|
|
(numbers (comma-separated number)))
|
|
(rx \"(\" numbers \")\"))"
|
|
:result "([[:digit:]]+\\(?:,[[:digit:]]+\\)*)")
|
|
(rx-let-eval
|
|
:eval "(rx-let-eval
|
|
'((ponder (x) (seq \"Where have all the \" x \" gone?\")))
|
|
(rx-to-string
|
|
'(ponder (or \"flowers\" \"cars\" \"socks\"))))"
|
|
:result "\\(?:Where have all the \\(?:\\(?:car\\|flower\\|sock\\)s\\) gone\\?\\)"))
|
|
|
|
(define-short-documentation-group sequence
|
|
"Sequence Predicates"
|
|
(seq-contains-p
|
|
:eval (seq-contains-p '(a b c) 'b)
|
|
:eval (seq-contains-p '(a b c) 'd))
|
|
(seq-every-p
|
|
:eval (seq-every-p #'numberp '(1 2 3)))
|
|
(seq-empty-p
|
|
:eval (seq-empty-p []))
|
|
(seq-set-equal-p
|
|
:eval (seq-set-equal-p '(1 2 3) '(3 1 2)))
|
|
(seq-some
|
|
:eval (seq-some #'floatp '(1 2.0 3)))
|
|
"Building Sequences"
|
|
(seq-concatenate
|
|
:eval (seq-concatenate 'vector '(1 2) '(c d)))
|
|
(seq-copy
|
|
:eval (seq-copy '(a 2)))
|
|
(seq-into
|
|
:eval (seq-into '(1 2 3) 'vector))
|
|
"Utility Functions"
|
|
(seq-count
|
|
:eval (seq-count #'numberp '(1 b c 4)))
|
|
(seq-elt
|
|
:eval (seq-elt '(a b c) 1))
|
|
(seq-random-elt
|
|
:no-eval (seq-random-elt '(a b c))
|
|
:eg-result c)
|
|
(seq-find
|
|
:eval (seq-find #'numberp '(a b 3 4 f 6)))
|
|
(seq-position
|
|
:eval (seq-position '(a b c) 'c))
|
|
(seq-positions
|
|
:eval (seq-positions '(a b c a d) 'a)
|
|
:eval (seq-positions '(a b c a d) 'z)
|
|
:eval (seq-positions '(11 5 7 12 9 15) 10 #'>=))
|
|
(seq-length
|
|
:eval (seq-length "abcde"))
|
|
(seq-max
|
|
:eval (seq-max [1 2 3]))
|
|
(seq-min
|
|
:eval (seq-min [1 2 3]))
|
|
(seq-first
|
|
:eval (seq-first [a b c]))
|
|
(seq-rest
|
|
:eval (seq-rest '[1 2 3]))
|
|
(seq-reverse
|
|
:eval (seq-reverse '(1 2 3)))
|
|
(seq-sort
|
|
:eval (seq-sort #'> '(1 2 3)))
|
|
(seq-sort-by
|
|
:eval (seq-sort-by (lambda (a) (/ 1.0 a)) #'< '(1 2 3)))
|
|
"Mapping Over Sequences"
|
|
(seq-map
|
|
:eval (seq-map #'1+ '(1 2 3)))
|
|
(seq-map-indexed
|
|
:eval (seq-map-indexed (lambda (a i) (cons i a)) '(a b c)))
|
|
(seq-mapcat
|
|
:eval (seq-mapcat #'upcase '("a" "b" "c") 'string))
|
|
(seq-do
|
|
:no-eval (seq-do (lambda (a) (insert a)) '("foo" "bar"))
|
|
:eg-result ("foo" "bar"))
|
|
(seq-do-indexed
|
|
:no-eval (seq-do-indexed
|
|
(lambda (a index) (message "%s:%s" index a))
|
|
'("foo" "bar"))
|
|
:eg-result nil)
|
|
(seq-reduce
|
|
:eval (seq-reduce #'* [1 2 3] 2))
|
|
"Excerpting Sequences"
|
|
(seq-drop
|
|
:eval (seq-drop '(a b c) 2))
|
|
(seq-drop-while
|
|
:eval (seq-drop-while #'numberp '(1 2 c d 5)))
|
|
(seq-filter
|
|
:eval (seq-filter #'numberp '(a b 3 4 f 6)))
|
|
(seq-keep
|
|
:eval (seq-keep #'car-safe '((1 2) 3 t (a . b))))
|
|
(seq-remove
|
|
:eval (seq-remove #'numberp '(1 2 c d 5)))
|
|
(seq-remove-at-position
|
|
:eval (seq-remove-at-position '(a b c d e) 3)
|
|
:eval (seq-remove-at-position [a b c d e] 0))
|
|
(seq-group-by
|
|
:eval (seq-group-by #'natnump '(-1 2 3 -4 -5 6)))
|
|
(seq-union
|
|
:eval (seq-union '(1 2 3) '(3 5)))
|
|
(seq-difference
|
|
:eval (seq-difference '(1 2 3) '(2 3 4)))
|
|
(seq-intersection
|
|
:eval (seq-intersection '(1 2 3) '(2 3 4)))
|
|
(seq-partition
|
|
:eval (seq-partition '(a b c d e f g h) 3))
|
|
(seq-subseq
|
|
:eval (seq-subseq '(a b c d e) 2 4))
|
|
(seq-take
|
|
:eval (seq-take '(a b c d e) 3))
|
|
(seq-split
|
|
:eval (seq-split [0 1 2 3 5] 2))
|
|
(seq-take-while
|
|
:eval (seq-take-while #'integerp [1 2 3.0 4]))
|
|
(seq-uniq
|
|
:eval (seq-uniq '(a b d b a c))))
|
|
|
|
(define-short-documentation-group buffer
|
|
"Buffer Basics"
|
|
(current-buffer
|
|
:no-eval (current-buffer)
|
|
:eg-result-string "#<buffer shortdoc.el>")
|
|
(bufferp
|
|
:eval (bufferp 23))
|
|
(buffer-live-p
|
|
:no-eval (buffer-live-p some-buffer)
|
|
:eg-result t)
|
|
(buffer-modified-p
|
|
:eval (buffer-modified-p (current-buffer)))
|
|
(buffer-name
|
|
:eval (buffer-name))
|
|
(window-buffer
|
|
:eval (window-buffer))
|
|
"Selecting Buffers"
|
|
(get-buffer-create
|
|
:no-eval (get-buffer-create "*foo*")
|
|
:eg-result-string "#<buffer *foo*>")
|
|
(pop-to-buffer
|
|
:no-eval (pop-to-buffer "*foo*")
|
|
:eg-result-string "#<buffer *foo*>")
|
|
(with-current-buffer
|
|
:no-eval* (with-current-buffer buffer (buffer-size)))
|
|
"Points and Positions"
|
|
(point
|
|
:eval (point))
|
|
(point-min
|
|
:eval (point-min))
|
|
(point-max
|
|
:eval (point-max))
|
|
(pos-bol
|
|
:eval (pos-bol))
|
|
(pos-eol
|
|
:eval (pos-eol))
|
|
(bolp
|
|
:eval (bolp))
|
|
(eolp
|
|
:eval (eolp))
|
|
(line-beginning-position
|
|
:eval (line-beginning-position))
|
|
(line-end-position
|
|
:eval (line-end-position))
|
|
(buffer-size
|
|
:eval (buffer-size))
|
|
(bobp
|
|
:eval (bobp))
|
|
(eobp
|
|
:eval (eobp))
|
|
"Moving Around"
|
|
(goto-char
|
|
:no-eval (goto-char (point-max))
|
|
:eg-result 342)
|
|
(search-forward
|
|
:no-eval (search-forward "some-string" nil t)
|
|
:eg-result 245)
|
|
(re-search-forward
|
|
:no-eval (re-search-forward "some-s.*g" nil t)
|
|
:eg-result 245)
|
|
(forward-line
|
|
:no-eval (forward-line 1)
|
|
:eg-result 0
|
|
:no-eval (forward-line -2)
|
|
:eg-result 0)
|
|
"Strings from Buffers"
|
|
(buffer-string
|
|
:no-eval* (buffer-string))
|
|
(buffer-substring
|
|
:eval (buffer-substring (point-min) (+ (point-min) 10)))
|
|
(buffer-substring-no-properties
|
|
:eval (buffer-substring-no-properties (point-min) (+ (point-min) 10)))
|
|
(following-char
|
|
:no-eval (following-char)
|
|
:eg-result 67)
|
|
(preceding-char
|
|
:no-eval (preceding-char)
|
|
:eg-result 38)
|
|
(char-after
|
|
:eval (char-after 45))
|
|
(char-before
|
|
:eval (char-before 13))
|
|
(get-byte
|
|
:no-eval (get-byte 45)
|
|
:eg-result-string "#xff")
|
|
"Altering Buffers"
|
|
(delete-region
|
|
:no-value (delete-region (point-min) (point-max)))
|
|
(erase-buffer
|
|
:no-value (erase-buffer))
|
|
(delete-line
|
|
:no-value (delete-line))
|
|
(insert
|
|
:no-value (insert "This string will be inserted in the buffer\n"))
|
|
(subst-char-in-region
|
|
:no-eval "(subst-char-in-region (point-min) (point-max) ?+ ?-)")
|
|
(replace-string-in-region
|
|
:no-value (replace-string-in-region "foo" "bar"))
|
|
"Locking"
|
|
(lock-buffer
|
|
:no-value (lock-buffer "/tmp/foo"))
|
|
(unlock-buffer
|
|
:no-value (unlock-buffer)))
|
|
|
|
(define-short-documentation-group overlay
|
|
"Predicates"
|
|
(overlayp
|
|
:no-eval (overlayp some-overlay)
|
|
:eg-result t)
|
|
"Creation and Deletion"
|
|
(make-overlay
|
|
:args (beg end &optional buffer)
|
|
:no-eval (make-overlay 1 10)
|
|
:eg-result-string "#<overlay from 1 to 10 in *foo*>")
|
|
(delete-overlay
|
|
:no-eval (delete-overlay foo)
|
|
:eg-result t)
|
|
"Searching Overlays"
|
|
(overlays-at
|
|
:no-eval (overlays-at 15)
|
|
:eg-result-string "(#<overlay from 1 to 10 in *foo*>)")
|
|
(overlays-in
|
|
:no-eval (overlays-in 1 30)
|
|
:eg-result-string "(#<overlay from 1 to 10 in *foo*>)")
|
|
(next-overlay-change
|
|
:no-eval (next-overlay-change 1)
|
|
:eg-result 20)
|
|
(previous-overlay-change
|
|
:no-eval (previous-overlay-change 30)
|
|
:eg-result 20)
|
|
"Overlay Properties"
|
|
(overlay-start
|
|
:no-eval (overlay-start foo)
|
|
:eg-result 1)
|
|
(overlay-end
|
|
:no-eval (overlay-end foo)
|
|
:eg-result 10)
|
|
(overlay-put
|
|
:no-eval (overlay-put foo 'happy t)
|
|
:eg-result t)
|
|
(overlay-get
|
|
:no-eval (overlay-get foo 'happy)
|
|
:eg-result t)
|
|
(overlay-buffer
|
|
:no-eval (overlay-buffer foo))
|
|
"Moving Overlays"
|
|
(move-overlay
|
|
:no-eval (move-overlay foo 5 20)
|
|
:eg-result-string "#<overlay from 5 to 20 in *foo*>"))
|
|
|
|
(define-short-documentation-group process
|
|
(make-process
|
|
:no-eval (make-process :name "foo" :command '("cat" "/tmp/foo"))
|
|
:eg-result-string "#<process foo>")
|
|
(processp
|
|
:eval (processp t))
|
|
(process-status
|
|
:no-eval (process-status process)
|
|
:eg-result exit)
|
|
(delete-process
|
|
:no-value (delete-process process))
|
|
(kill-process
|
|
:no-value (kill-process process))
|
|
(set-process-sentinel
|
|
:no-value (set-process-sentinel process (lambda (proc string))))
|
|
(process-buffer
|
|
:no-eval (process-buffer process)
|
|
:eg-result-string "#<buffer *foo*>")
|
|
(get-buffer-process
|
|
:no-eval (get-buffer-process buffer)
|
|
:eg-result-string "#<process foo>")
|
|
(process-live-p
|
|
:no-eval (process-live-p process)
|
|
:eg-result t))
|
|
|
|
(define-short-documentation-group number
|
|
"Arithmetic"
|
|
(+
|
|
:args (&rest numbers)
|
|
:eval (+ 1 2)
|
|
:eval (+ 1 2 3 4))
|
|
(-
|
|
:args (&rest numbers)
|
|
:eval (- 3 2)
|
|
:eval (- 6 3 2))
|
|
(*
|
|
:args (&rest numbers)
|
|
:eval (* 3 4 5))
|
|
(/
|
|
:eval (/ 10 5)
|
|
:eval (/ 10 6)
|
|
:eval (/ 10.0 6)
|
|
:eval (/ 10.0 3 3))
|
|
(%
|
|
:eval (% 10 5)
|
|
:eval (% 10 6))
|
|
(mod
|
|
:eval (mod 10 5)
|
|
:eval (mod 10 6)
|
|
:eval (mod 10.5 6))
|
|
(1+
|
|
:eval (1+ 2))
|
|
(1-
|
|
:eval (1- 4))
|
|
"Predicates"
|
|
(=
|
|
:args (number &rest numbers)
|
|
:eval (= 4 4)
|
|
:eval (= 4.0 4.0)
|
|
:eval (= 4 4.0)
|
|
:eval (= 4 4 4 4))
|
|
(eql
|
|
:eval (eql 4 4)
|
|
:eval (eql 4.0 4.0))
|
|
(/=
|
|
:eval (/= 4 4))
|
|
(<
|
|
:args (number &rest numbers)
|
|
:eval (< 4 4)
|
|
:eval (< 1 2 3))
|
|
(<=
|
|
:args (number &rest numbers)
|
|
:eval (<= 4 4)
|
|
:eval (<= 1 2 2 3))
|
|
(>
|
|
:args (number &rest numbers)
|
|
:eval (> 4 4)
|
|
:eval (> 3 2 1))
|
|
(>=
|
|
:args (number &rest numbers)
|
|
:eval (>= 4 4)
|
|
:eval (>= 3 2 2 1))
|
|
(zerop
|
|
:eval (zerop 0))
|
|
(natnump
|
|
:eval (natnump -1)
|
|
:eval (natnump 0)
|
|
:eval (natnump 23))
|
|
(cl-plusp
|
|
:eval (cl-plusp 0)
|
|
:eval (cl-plusp 1))
|
|
(cl-minusp
|
|
:eval (cl-minusp 0)
|
|
:eval (cl-minusp -1))
|
|
(cl-oddp
|
|
:eval (cl-oddp 3))
|
|
(cl-evenp
|
|
:eval (cl-evenp 6))
|
|
(bignump
|
|
:eval (bignump 4)
|
|
:eval (bignump (expt 2 90)))
|
|
(fixnump
|
|
:eval (fixnump 4)
|
|
:eval (fixnump (expt 2 90)))
|
|
(floatp
|
|
:eval (floatp 5.4))
|
|
(integerp
|
|
:eval (integerp 5.4))
|
|
(numberp
|
|
:eval (numberp "5.4"))
|
|
(cl-digit-char-p
|
|
:eval (cl-digit-char-p ?5 10)
|
|
:eval (cl-digit-char-p ?f 16))
|
|
"Operations"
|
|
(max
|
|
:args (number &rest numbers)
|
|
:eval (max 7 9 3))
|
|
(min
|
|
:args (number &rest numbers)
|
|
:eval (min 7 9 3))
|
|
(abs
|
|
:eval (abs -4))
|
|
(float
|
|
:eval (float 2))
|
|
(truncate
|
|
:eval (truncate 1.2)
|
|
:eval (truncate -1.2)
|
|
:eval (truncate 5.4 2))
|
|
(floor
|
|
:eval (floor 1.2)
|
|
:eval (floor -1.2)
|
|
:eval (floor 5.4 2))
|
|
(ceiling
|
|
:eval (ceiling 1.2)
|
|
:eval (ceiling -1.2)
|
|
:eval (ceiling 5.4 2))
|
|
(round
|
|
:eval (round 1.2)
|
|
:eval (round -1.2)
|
|
:eval (round 5.4 2))
|
|
(random
|
|
:eval (random 6))
|
|
"Bit Operations"
|
|
(ash
|
|
:eval (ash 1 4)
|
|
:eval (ash 16 -1))
|
|
(logand
|
|
:no-eval "(logand #b10 #b111)"
|
|
:result-string "#b10")
|
|
(logior
|
|
:eval (logior 4 16))
|
|
(logxor
|
|
:eval (logxor 4 16))
|
|
(lognot
|
|
:eval (lognot 5))
|
|
(logcount
|
|
:eval (logcount 5))
|
|
"Floating Point"
|
|
(isnan
|
|
:eval (isnan 5.0))
|
|
(frexp
|
|
:eval (frexp 5.7))
|
|
(ldexp
|
|
:eval (ldexp 0.7125 3))
|
|
(logb
|
|
:eval (logb 10.5))
|
|
(ffloor
|
|
:eval (ffloor 1.2))
|
|
(fceiling
|
|
:eval (fceiling 1.2))
|
|
(ftruncate
|
|
:eval (ftruncate 1.2))
|
|
(fround
|
|
:eval (fround 1.2))
|
|
"Standard Math Functions"
|
|
(sin
|
|
:eval (sin float-pi))
|
|
(cos
|
|
:eval (cos float-pi))
|
|
(tan
|
|
:eval (tan float-pi))
|
|
(asin
|
|
:eval (asin float-pi))
|
|
(acos
|
|
:eval (acos float-pi))
|
|
(atan
|
|
:eval (atan float-pi))
|
|
(exp
|
|
:eval (exp 4))
|
|
(log
|
|
:eval (log 54.59))
|
|
(expt
|
|
:eval (expt 2 16))
|
|
(sqrt
|
|
:eval (sqrt -1)))
|
|
|
|
(define-short-documentation-group text-properties
|
|
"Examining Text Properties"
|
|
(get-text-property
|
|
:eval (get-text-property 0 'foo (propertize "x" 'foo t)))
|
|
(get-char-property
|
|
:eval (get-char-property 0 'foo (propertize "x" 'foo t)))
|
|
(get-pos-property
|
|
:eval (get-pos-property 0 'foo (propertize "x" 'foo t)))
|
|
(get-char-property-and-overlay
|
|
:eval (get-char-property-and-overlay 0 'foo (propertize "x" 'foo t)))
|
|
(text-properties-at
|
|
:eval (text-properties-at (point)))
|
|
"Changing Text Properties"
|
|
(put-text-property
|
|
:eval (let ((s "abc")) (put-text-property 0 1 'foo t s) s)
|
|
:no-eval (put-text-property (point) (1+ (point)) 'face 'error))
|
|
(add-text-properties
|
|
:no-eval (add-text-properties (point) (1+ (point)) '(face error)))
|
|
(remove-text-properties
|
|
:no-eval (remove-text-properties (point) (1+ (point)) '(face nil)))
|
|
(remove-list-of-text-properties
|
|
:no-eval (remove-list-of-text-properties (point) (1+ (point)) '(face font-lock-face)))
|
|
(set-text-properties
|
|
:no-eval (set-text-properties (point) (1+ (point)) '(face error)))
|
|
(add-face-text-property
|
|
:no-eval (add-face-text-property START END '(:foreground "green")))
|
|
(propertize
|
|
:eval (propertize "foo" 'face 'italic 'mouse-face 'bold-italic))
|
|
"Searching for Text Properties"
|
|
(next-property-change
|
|
:no-eval (next-property-change (point) (current-buffer)))
|
|
(previous-property-change
|
|
:no-eval (previous-property-change (point) (current-buffer)))
|
|
(next-single-property-change
|
|
:no-eval (next-single-property-change (point) 'face (current-buffer)))
|
|
(previous-single-property-change
|
|
:no-eval (previous-single-property-change (point) 'face (current-buffer)))
|
|
;; TODO: There are some more that could be added here.
|
|
(text-property-search-forward
|
|
:no-eval (text-property-search-forward 'face nil t))
|
|
(text-property-search-backward
|
|
:no-eval (text-property-search-backward 'face nil t)))
|
|
|
|
(define-short-documentation-group keymaps
|
|
"Defining keymaps"
|
|
(define-keymap
|
|
:no-eval (define-keymap "C-c C-c" #'quit-buffer))
|
|
(defvar-keymap
|
|
:no-eval (defvar-keymap my-keymap "C-c C-c" #'quit-buffer))
|
|
"Setting keys"
|
|
(keymap-set
|
|
:no-eval (keymap-set map "C-c C-c" #'quit-buffer))
|
|
(keymap-local-set
|
|
:no-eval (keymap-local-set "C-c C-c" #'quit-buffer))
|
|
(keymap-global-set
|
|
:no-eval (keymap-global-set "C-c C-c" #'quit-buffer))
|
|
(keymap-unset
|
|
:no-eval (keymap-unset map "C-c C-c"))
|
|
(keymap-local-unset
|
|
:no-eval (keymap-local-unset "C-c C-c"))
|
|
(keymap-global-unset
|
|
:no-eval (keymap-global-unset "C-c C-c"))
|
|
(keymap-substitute
|
|
:no-eval (keymap-substitute map "C-c C-c" "M-a"))
|
|
(keymap-set-after
|
|
:no-eval (keymap-set-after map "<separator-2>" menu-bar-separator))
|
|
"Predicates"
|
|
(keymapp
|
|
:eval (keymapp (define-keymap)))
|
|
(key-valid-p
|
|
:eval (key-valid-p "C-c C-c")
|
|
:eval (key-valid-p "C-cC-c"))
|
|
"Lookup"
|
|
(keymap-lookup
|
|
:eval (keymap-lookup (current-global-map) "C-x x g")))
|
|
|
|
;;;###autoload
|
|
(defun shortdoc-display-group (group &optional function same-window)
|
|
"Pop to a buffer with short documentation summary for functions in GROUP.
|
|
If FUNCTION is non-nil, place point on the entry for FUNCTION (if any).
|
|
If SAME-WINDOW, don't pop to a new window."
|
|
(interactive (list (completing-read "Show summary for functions in: "
|
|
(mapcar #'car shortdoc--groups))))
|
|
(when (stringp group)
|
|
(setq group (intern group)))
|
|
(unless (assq group shortdoc--groups)
|
|
(error "No such documentation group %s" group))
|
|
(let ((buf (get-buffer-create (format "*Shortdoc %s*" group))))
|
|
(shortdoc--insert-group-in-buffer group buf)
|
|
(funcall (if same-window
|
|
#'pop-to-buffer-same-window
|
|
#'pop-to-buffer)
|
|
buf))
|
|
(goto-char (point-min))
|
|
(when function
|
|
(text-property-search-forward 'shortdoc-function function t)
|
|
(beginning-of-line)))
|
|
|
|
(defun shortdoc--insert-group-in-buffer (group &optional buf)
|
|
"Insert a short documentation summary for functions in GROUP in buffer BUF.
|
|
BUF defaults to the current buffer if nil or omitted."
|
|
(with-current-buffer (or buf (current-buffer))
|
|
(let ((inhibit-read-only t)
|
|
(prev nil))
|
|
(erase-buffer)
|
|
(shortdoc-mode)
|
|
(button-mode)
|
|
(mapc
|
|
(lambda (data)
|
|
(cond
|
|
((stringp data)
|
|
(setq prev nil)
|
|
(unless (bobp)
|
|
(insert "\n"))
|
|
(insert (propertize
|
|
(substitute-command-keys data)
|
|
'face 'shortdoc-heading
|
|
'shortdoc-section t
|
|
'outline-level 1))
|
|
(insert (propertize
|
|
"\n\n"
|
|
'face 'shortdoc-heading
|
|
'shortdoc-section t)))
|
|
;; There may be functions not yet defined in the data.
|
|
((fboundp (car data))
|
|
(when prev
|
|
(insert (make-separator-line)
|
|
;; This helps with hidden outlines (bug#53981)
|
|
(propertize "\n" 'face '(:height 0))))
|
|
(setq prev t)
|
|
(shortdoc--display-function data))))
|
|
(cdr (assq group shortdoc--groups))))))
|
|
|
|
;;;###autoload
|
|
(defalias 'shortdoc #'shortdoc-display-group)
|
|
|
|
(defun shortdoc--display-function (data)
|
|
(let ((function (pop data))
|
|
(start-section (point))
|
|
arglist-start)
|
|
;; Function calling convention.
|
|
(insert (propertize "(" 'shortdoc-function function 'outline-level 2))
|
|
(if (plist-get data :no-manual)
|
|
(insert-text-button
|
|
(symbol-name function)
|
|
'face 'button
|
|
'action (lambda (_)
|
|
(describe-function function))
|
|
'follow-link t
|
|
'help-echo "mouse-1, RET: describe function")
|
|
(insert-text-button
|
|
(symbol-name function)
|
|
'face 'button
|
|
'action (lambda (_)
|
|
(info-lookup-symbol function 'emacs-lisp-mode))
|
|
'follow-link t
|
|
'help-echo "mouse-1, RET: show \
|
|
function's documentation in the Info manual"))
|
|
(setq arglist-start (point))
|
|
(insert ")\n")
|
|
;; Doc string.
|
|
(insert " "
|
|
(or (plist-get data :doc)
|
|
(car (split-string (documentation function) "\n"))))
|
|
(insert "\n")
|
|
(add-face-text-property start-section (point) 'shortdoc-section t)
|
|
(let ((print-escape-newlines t)
|
|
(double-arrow (if (char-displayable-p ?⇒)
|
|
"⇒"
|
|
"=>"))
|
|
(single-arrow (if (char-displayable-p ?→)
|
|
"→"
|
|
"->"))
|
|
(start-example (point)))
|
|
(cl-loop for (type value) on data by #'cddr
|
|
do
|
|
(cl-case type
|
|
(:eval
|
|
(insert " ")
|
|
(if (stringp value)
|
|
(insert value)
|
|
(prin1 value (current-buffer)))
|
|
(insert "\n " double-arrow " ")
|
|
(let ((expr (if (stringp value)
|
|
(car (read-from-string value))
|
|
value)))
|
|
(prin1 (eval expr) (current-buffer)))
|
|
(insert "\n"))
|
|
(:no-eval*
|
|
(if (stringp value)
|
|
(insert " " value "\n")
|
|
(insert " ")
|
|
(prin1 value (current-buffer)))
|
|
(insert "\n " single-arrow " "
|
|
(propertize "[it depends]"
|
|
'face 'shortdoc-section)
|
|
"\n"))
|
|
(:no-value
|
|
(if (stringp value)
|
|
(insert " " value)
|
|
(insert " ")
|
|
(prin1 value (current-buffer)))
|
|
(insert "\n"))
|
|
(:no-eval
|
|
(if (stringp value)
|
|
(insert " " value)
|
|
(insert " ")
|
|
(prin1 value (current-buffer)))
|
|
(insert "\n"))
|
|
(:result
|
|
(insert " " double-arrow " ")
|
|
(prin1 value (current-buffer))
|
|
(insert "\n"))
|
|
(:result-string
|
|
(insert " " double-arrow " ")
|
|
(princ value (current-buffer))
|
|
(insert "\n"))
|
|
(:eg-result
|
|
(insert " e.g. " double-arrow " ")
|
|
(prin1 value (current-buffer))
|
|
(insert "\n"))
|
|
(:eg-result-string
|
|
(insert " e.g. " double-arrow " ")
|
|
(princ value (current-buffer))
|
|
(insert "\n"))))
|
|
(add-text-properties start-example (point) `(shortdoc-example ,function)))
|
|
;; Insert the arglist after doing the evals, in case that's pulled
|
|
;; in the function definition.
|
|
(save-excursion
|
|
(goto-char arglist-start)
|
|
(dolist (param (or (plist-get data :args)
|
|
(help-function-arglist function t)))
|
|
(insert " " (symbol-name param)))
|
|
(add-face-text-property arglist-start (point) 'shortdoc-section t))))
|
|
|
|
(defun shortdoc-function-examples (function)
|
|
"Return all shortdoc examples for FUNCTION.
|
|
The result is an alist with items of the form (GROUP . EXAMPLES),
|
|
where GROUP is a shortdoc group where FUNCTION appears, and
|
|
EXAMPLES is a string with the usage examples of FUNCTION defined
|
|
in GROUP. Return nil if FUNCTION is not a function or if it
|
|
doesn't has any shortdoc information."
|
|
(let ((groups (and (symbolp function)
|
|
(shortdoc-function-groups function)))
|
|
(examples nil))
|
|
(mapc
|
|
(lambda (group)
|
|
(with-temp-buffer
|
|
(shortdoc--insert-group-in-buffer group)
|
|
(goto-char (point-min))
|
|
(let ((match (text-property-search-forward
|
|
'shortdoc-example function t)))
|
|
(push `(,group . ,(string-trim
|
|
(buffer-substring-no-properties
|
|
(prop-match-beginning match)
|
|
(prop-match-end match))))
|
|
examples))))
|
|
groups)
|
|
examples))
|
|
|
|
(defun shortdoc-help-fns-examples-function (function)
|
|
"Insert Emacs Lisp examples for FUNCTION into the current buffer.
|
|
You can add this function to the `help-fns-describe-function-functions'
|
|
hook to show examples of using FUNCTION in *Help* buffers produced
|
|
by \\[describe-function]."
|
|
(let* ((examples (shortdoc-function-examples function))
|
|
(num-examples (length examples))
|
|
(times 0))
|
|
(dolist (example examples)
|
|
(when (zerop times)
|
|
(if (> num-examples 1)
|
|
(insert "\n Examples:\n\n")
|
|
;; Some functions have more than one example per group.
|
|
;; Count the number of arrows to know if we need to
|
|
;; pluralize "Example".
|
|
(let* ((text (cdr example))
|
|
(count 0)
|
|
(pos 0)
|
|
(end (length text))
|
|
(double-arrow (if (char-displayable-p ?⇒)
|
|
" ⇒"
|
|
" =>"))
|
|
(double-arrow-example (if (char-displayable-p ?⇒)
|
|
" e.g. ⇒"
|
|
" e.g. =>"))
|
|
(single-arrow (if (char-displayable-p ?→)
|
|
" →"
|
|
" ->")))
|
|
(while (and (< pos end)
|
|
(or (string-match double-arrow text pos)
|
|
(string-match double-arrow-example text pos)
|
|
(string-match single-arrow text pos)))
|
|
(setq count (1+ count)
|
|
pos (match-end 0)))
|
|
(if (> count 1)
|
|
(insert "\n Examples:\n\n")
|
|
(insert "\n Example:\n\n")))))
|
|
(setq times (1+ times))
|
|
(insert " ")
|
|
(insert (cdr example))
|
|
(insert "\n\n"))))
|
|
|
|
(defun shortdoc-function-groups (function)
|
|
"Return all shortdoc groups FUNCTION appears in."
|
|
(cl-loop for group in shortdoc--groups
|
|
when (assq function (cdr group))
|
|
collect (car group)))
|
|
|
|
(defun shortdoc-add-function (group section elem)
|
|
"Add ELEM to shortdoc GROUP in SECTION.
|
|
If GROUP doesn't exist, it will be created.
|
|
If SECTION doesn't exist, it will be added.
|
|
|
|
ELEM is a Lisp form. See `define-short-documentation-group' for
|
|
details.
|
|
|
|
Example:
|
|
|
|
(shortdoc-add-function
|
|
\\='file \"Predicates\"
|
|
\\='(file-locked-p :no-eval (file-locked-p \"/tmp\")))"
|
|
(let ((glist (assq group shortdoc--groups)))
|
|
(unless glist
|
|
(setq glist (list group))
|
|
(push glist shortdoc--groups))
|
|
(let ((slist (member section glist)))
|
|
(unless slist
|
|
(setq slist (list section))
|
|
(nconc glist slist))
|
|
(while (and (cdr slist)
|
|
(not (stringp (cadr slist))))
|
|
(setq slist (cdr slist)))
|
|
(setcdr slist (cons elem (cdr slist))))))
|
|
|
|
(defvar-keymap shortdoc-mode-map
|
|
:doc "Keymap for `shortdoc-mode'."
|
|
"n" #'shortdoc-next
|
|
"p" #'shortdoc-previous
|
|
"N" #'shortdoc-next-section
|
|
"P" #'shortdoc-previous-section
|
|
"C-c C-n" #'shortdoc-next-section
|
|
"C-c C-p" #'shortdoc-previous-section
|
|
"w" #'shortdoc-copy-function-as-kill)
|
|
|
|
(define-derived-mode shortdoc-mode special-mode "shortdoc"
|
|
"Mode for shortdoc."
|
|
:interactive nil
|
|
(setq-local outline-search-function #'outline-search-level
|
|
outline-level (lambda ()
|
|
(get-text-property (point) 'outline-level))))
|
|
|
|
(defun shortdoc--goto-section (arg sym &optional reverse)
|
|
(unless (natnump arg)
|
|
(setq arg 1))
|
|
(while (> arg 0)
|
|
(funcall
|
|
(if reverse 'text-property-search-backward
|
|
'text-property-search-forward)
|
|
sym nil t)
|
|
(setq arg (1- arg))))
|
|
|
|
(defun shortdoc-next (&optional arg)
|
|
"Move point to the next function.
|
|
With prefix numeric argument ARG, do it that many times."
|
|
(interactive "p" shortdoc-mode)
|
|
(shortdoc--goto-section arg 'shortdoc-function))
|
|
|
|
(defun shortdoc-previous (&optional arg)
|
|
"Move point to the previous function.
|
|
With prefix numeric argument ARG, do it that many times."
|
|
(interactive "p" shortdoc-mode)
|
|
(shortdoc--goto-section arg 'shortdoc-function t)
|
|
(backward-char 1))
|
|
|
|
(defun shortdoc-next-section (&optional arg)
|
|
"Move point to the next section.
|
|
With prefix numeric argument ARG, do it that many times."
|
|
(interactive "p" shortdoc-mode)
|
|
(shortdoc--goto-section arg 'shortdoc-section))
|
|
|
|
(defun shortdoc-previous-section (&optional arg)
|
|
"Move point to the previous section.
|
|
With prefix numeric argument ARG, do it that many times."
|
|
(interactive "p" shortdoc-mode)
|
|
(shortdoc--goto-section arg 'shortdoc-section t)
|
|
(forward-line -2))
|
|
|
|
(defun shortdoc-copy-function-as-kill ()
|
|
"Copy name of the function near point into the kill ring."
|
|
(interactive)
|
|
(save-excursion
|
|
(goto-char (pos-bol))
|
|
(when-let* ((re (rx bol "(" (group (+ (not (in " )"))))))
|
|
(string
|
|
(and (or (looking-at re)
|
|
(re-search-backward re nil t))
|
|
(match-string 1))))
|
|
(set-text-properties 0 (length string) nil string)
|
|
(kill-new string)
|
|
(message string))))
|
|
|
|
(provide 'shortdoc)
|
|
|
|
;;; shortdoc.el ends here
|