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1 ;;; pascal.el - Major mode for editing pascal source in emacs.
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2
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3 ;;; Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
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4
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5 ;;; Author: Espen Skoglund (espensk@stud.cs.uit.no)
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6 ;;; Keywords: languages
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7
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8 ;; This file is part of XEmacs.
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9
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10 ;; XEmacs is free software; you can redistribute it and/or modify it
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11 ;; under the terms of the GNU General Public License as published by
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12 ;; the Free Software Foundation; either version 2, or (at your option)
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13 ;; any later version.
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14
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15 ;; XEmacs is distributed in the hope that it will be useful, but
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16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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18 ;; General Public License for more details.
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19
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20 ;; You should have received a copy of the GNU General Public License
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21 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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22 ;; Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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23
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24 ;;; Synched up with: FSF 19.30.
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25
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26 ;;; Commentary:
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27
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28 ;;; USAGE
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29 ;;; =====
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30
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31 ;;; Emacs should enter Pascal mode when you find a Pascal source file.
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32 ;;; When you have entered Pascal mode, you may get more info by pressing
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33 ;;; C-h m. You may also get online help describing various functions by:
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34 ;;; C-h f <Name of function you want described>
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35
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36 ;;; If you want to customize Pascal mode to fit you better, you may add
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37 ;;; these lines (the values of the variables presented here are the defaults):
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38 ;;;
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39 ;;; ;; User customization for Pascal mode
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40 ;;; (setq pascal-indent-level 3
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41 ;;; pascal-case-indent 2
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42 ;;; pascal-auto-newline nil
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43 ;;; pascal-tab-always-indent t
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44 ;;; pascal-auto-endcomments t
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45 ;;; pascal-auto-lineup '(all)
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46 ;;; pascal-toggle-completions nil
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47 ;;; pascal-type-keywords '("array" "file" "packed" "char"
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48 ;;; "integer" "real" "string" "record")
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49 ;;; pascal-start-keywords '("begin" "end" "function" "procedure"
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50 ;;; "repeat" "until" "while" "read" "readln"
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51 ;;; "reset" "rewrite" "write" "writeln")
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52 ;;; pascal-separator-keywords '("downto" "else" "mod" "div" "then"))
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53
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54 ;;; KNOWN BUGS / BUGREPORTS
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55 ;;; =======================
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56 ;;; As far as I know, there are no bugs in the current version of this
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57 ;;; package. This may not be true however, since I never use this mode
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58 ;;; myself and therefore would never notice them anyway. If you do
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59 ;;; find any bugs, you may submit them to: espensk@stud.cs.uit.no
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60 ;;; as well as to bug-gnu-emacs@prep.ai.mit.edu.
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61
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62 ;;; Code:
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63
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64 (defconst pascal-mode-version "2.4"
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65 "Version of `pascal.el'.")
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66
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67 (defvar pascal-mode-abbrev-table nil
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68 "Abbrev table in use in Pascal-mode buffers.")
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69 (define-abbrev-table 'pascal-mode-abbrev-table ())
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70
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71 (defvar pascal-mode-map ()
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72 "Keymap used in Pascal mode.")
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73 (if pascal-mode-map
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74 ()
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75 (setq pascal-mode-map (make-sparse-keymap))
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76 (define-key pascal-mode-map ";" 'electric-pascal-semi-or-dot)
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77 (define-key pascal-mode-map "." 'electric-pascal-semi-or-dot)
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78 (define-key pascal-mode-map ":" 'electric-pascal-colon)
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79 (define-key pascal-mode-map "=" 'electric-pascal-equal)
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80 (define-key pascal-mode-map "#" 'electric-pascal-hash)
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81 (define-key pascal-mode-map "\r" 'electric-pascal-terminate-line)
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82 (define-key pascal-mode-map "\t" 'electric-pascal-tab)
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83 (define-key pascal-mode-map "\M-\t" 'pascal-complete-word)
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84 (define-key pascal-mode-map "\M-?" 'pascal-show-completions)
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85 (define-key pascal-mode-map "\177" 'backward-delete-char-untabify)
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86 (define-key pascal-mode-map "\M-\C-h" 'pascal-mark-defun)
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87 (define-key pascal-mode-map "\C-c\C-b" 'pascal-insert-block)
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88 (define-key pascal-mode-map "\M-*" 'pascal-star-comment)
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89 (define-key pascal-mode-map "\C-c\C-c" 'pascal-comment-area)
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90 (define-key pascal-mode-map "\C-c\C-u" 'pascal-uncomment-area)
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91 (define-key pascal-mode-map "\M-\C-a" 'pascal-beg-of-defun)
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92 (define-key pascal-mode-map "\M-\C-e" 'pascal-end-of-defun)
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93 (define-key pascal-mode-map "\C-c\C-d" 'pascal-goto-defun)
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94 (define-key pascal-mode-map "\C-c\C-o" 'pascal-outline)
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95 ;;; A command to change the whole buffer won't be used terribly
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96 ;;; often, so no need for a key binding.
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97 ; (define-key pascal-mode-map "\C-cd" 'pascal-downcase-keywords)
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98 ; (define-key pascal-mode-map "\C-cu" 'pascal-upcase-keywords)
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99 ; (define-key pascal-mode-map "\C-cc" 'pascal-capitalize-keywords)
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100 )
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101
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102 ;(defvar pascal-imenu-generic-expression
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103 ; '("^[ \t]*\\(function\\|procedure\\)[ \t\n]+\\([a-zA-Z0-9_.:]+\\)" . (2))
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104 ; "Imenu expression for Pascal-mode. See `imenu-generic-expression'.")
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105
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106 (defvar pascal-keywords
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107 '("and" "array" "begin" "case" "const" "div" "do" "downto" "else" "end"
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108 "file" "for" "function" "goto" "if" "in" "label" "mod" "nil" "not" "of"
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109 "or" "packed" "procedure" "program" "record" "repeat" "set" "then" "to"
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110 "type" "until" "var" "while" "with"
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111 ;; The following are not standard in pascal, but widely used.
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112 "get" "put" "input" "output" "read" "readln" "reset" "rewrite" "write"
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113 "writeln"))
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114
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115 ;;;
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116 ;;; Regular expressions used to calculate indent, etc.
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117 ;;;
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118 (defconst pascal-symbol-re "\\<[a-zA-Z_][a-zA-Z_0-9.]*\\>")
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119 (defconst pascal-beg-block-re "\\<\\(begin\\|case\\|record\\|repeat\\)\\>")
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120 (defconst pascal-end-block-re "\\<\\(end\\|until\\)\\>")
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121 (defconst pascal-declaration-re "\\<\\(const\\|label\\|type\\|var\\)\\>")
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122 (defconst pascal-defun-re "\\<\\(function\\|procedure\\|program\\)\\>")
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123 (defconst pascal-sub-block-re "\\<\\(if\\|else\\|for\\|while\\|with\\)\\>")
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124 (defconst pascal-noindent-re "\\<\\(begin\\|end\\|until\\|else\\)\\>")
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125 (defconst pascal-nosemi-re "\\<\\(begin\\|repeat\\|then\\|do\\|else\\)\\>")
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126 (defconst pascal-autoindent-lines-re
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127 "\\<\\(label\\|var\\|type\\|const\\|until\\|end\\|begin\\|repeat\\|else\\)\\>")
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128
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129 ;;; Strings used to mark beginning and end of excluded text
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130 (defconst pascal-exclude-str-start "{-----\\/----- EXCLUDED -----\\/-----")
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131 (defconst pascal-exclude-str-end " -----/\\----- EXCLUDED -----/\\-----}")
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132
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133 (defvar pascal-mode-syntax-table nil
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134 "Syntax table in use in Pascal-mode buffers.")
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135
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136 (if pascal-mode-syntax-table
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137 ()
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138 (setq pascal-mode-syntax-table (make-syntax-table))
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139 (modify-syntax-entry ?\\ "." pascal-mode-syntax-table)
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140 (modify-syntax-entry ?( "()1" pascal-mode-syntax-table)
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141 (modify-syntax-entry ?) ")(4" pascal-mode-syntax-table)
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142 (modify-syntax-entry ?* ". 23" pascal-mode-syntax-table)
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143 (modify-syntax-entry ?{ "<" pascal-mode-syntax-table)
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144 (modify-syntax-entry ?} ">" pascal-mode-syntax-table)
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145 (modify-syntax-entry ?+ "." pascal-mode-syntax-table)
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146 (modify-syntax-entry ?- "." pascal-mode-syntax-table)
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147 (modify-syntax-entry ?= "." pascal-mode-syntax-table)
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148 (modify-syntax-entry ?% "." pascal-mode-syntax-table)
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149 (modify-syntax-entry ?< "." pascal-mode-syntax-table)
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150 (modify-syntax-entry ?> "." pascal-mode-syntax-table)
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151 (modify-syntax-entry ?& "." pascal-mode-syntax-table)
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152 (modify-syntax-entry ?| "." pascal-mode-syntax-table)
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153 (modify-syntax-entry ?_ "w" pascal-mode-syntax-table)
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154 (modify-syntax-entry ?\' "\"" pascal-mode-syntax-table))
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155
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156 (defconst pascal-font-lock-keywords (purecopy
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157 (list
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158 '("^[ \t]*\\(function\\|pro\\(cedure\\|gram\\)\\)\\>[ \t]*\\(\\sw+\\)?"
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159 1 font-lock-keyword-face)
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160 '("^[ \t]*\\(function\\|pro\\(cedure\\|gram\\)\\)\\>[ \t]*\\(\\sw+\\)?"
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161 3 font-lock-function-name-face t)
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162 ; ("type" "const" "real" "integer" "char" "boolean" "var"
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163 ; "record" "array" "file")
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164 (cons (concat "\\<\\(array\\|boolean\\|c\\(har\\|onst\\)\\|file\\|"
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165 "integer\\|re\\(al\\|cord\\)\\|type\\|var\\)\\>")
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166 'font-lock-type-face)
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167 '("\\<\\(label\\|external\\|forward\\)\\>" . font-lock-function-name-face)
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168 '("\\<\\([0-9]+\\)[ \t]*:" 1 font-lock-function-name-face)
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169 ; ("of" "to" "for" "if" "then" "else" "case" "while"
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170 ; "do" "until" "and" "or" "not" "in" "with" "repeat" "begin" "end")
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171 (concat "\\<\\("
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172 "and\\|begin\\|case\\|do\\|e\\(lse\\|nd\\)\\|for\\|i[fn]\\|"
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173 "not\\|o[fr]\\|repeat\\|t\\(hen\\|o\\)\\|until\\|w\\(hile\\|ith\\)"
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174 "\\)\\>")
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175 '("\\<\\(goto\\)\\>[ \t]*\\([0-9]+\\)?"
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176 1 font-lock-keyword-face)
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177 '("\\<\\(goto\\)\\>[ \t]*\\([0-9]+\\)?"
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178 2 font-lock-keyword-face t)))
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179 "Additional expressions to highlight in Pascal mode.")
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180 (put 'pascal-mode 'font-lock-defaults '(pascal-font-lock-keywords nil t))
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181
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182 (defvar pascal-indent-level 3
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183 "*Indentation of Pascal statements with respect to containing block.")
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184
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185 (defvar pascal-case-indent 2
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186 "*Indentation for case statements.")
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187
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188 (defvar pascal-auto-newline nil
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189 "*Non-nil means automatically newline after simcolons and the punctation mark
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190 after an end.")
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191
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192 (defvar pascal-tab-always-indent t
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193 "*Non-nil means TAB in Pascal mode should always reindent the current line,
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194 regardless of where in the line point is when the TAB command is used.")
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195
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196 (defvar pascal-auto-endcomments t
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197 "*Non-nil means a comment { ... } is set after the ends which ends cases and
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198 functions. The name of the function or case will be set between the braces.")
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199
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200 (defvar pascal-auto-lineup '(all)
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201 "*List of contexts where auto lineup of :'s or ='s should be done.
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202 Elements can be of type: 'paramlist', 'declaration' or 'case', which will
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203 do auto lineup in parameterlist, declarations or case-statements
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204 respectively. The word 'all' will do all lineups. '(case paramlist) for
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205 instance will do lineup in case-statements and parameterlist, while '(all)
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206 will do all lineups.")
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207
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208 (defvar pascal-toggle-completions nil
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209 "*Non-nil means that \\<pascal-mode-map>\\[pascal-complete-label] should \
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210 not display a completion buffer when
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211 the label couldn't be completed, but instead toggle the possible completions
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212 with repeated \\[pascal-complete-label]'s.")
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213
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214 (defvar pascal-type-keywords
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215 '("array" "file" "packed" "char" "integer" "real" "string" "record")
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216 "*Keywords for types used when completing a word in a declaration or parmlist.
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217 \(eg. integer, real, char.) The types defined within the Pascal program
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218 will be completed runtime, and should not be added to this list.")
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219
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220 (defvar pascal-start-keywords
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221 '("begin" "end" "function" "procedure" "repeat" "until" "while"
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222 "read" "readln" "reset" "rewrite" "write" "writeln")
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223 "*Keywords to complete when standing at the first word of a statement.
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224 \(eg. begin, repeat, until, readln.)
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225 The procedures and variables defined within the Pascal program
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226 will be completed runtime and should not be added to this list.")
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227
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228 (defvar pascal-separator-keywords
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229 '("downto" "else" "mod" "div" "then")
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230 "*Keywords to complete when NOT standing at the first word of a statement.
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231 \(eg. downto, else, mod, then.)
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232 Variables and function names defined within the
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233 Pascal program are completed runtime and should not be added to this list.")
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234
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235 ;;;
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236 ;;; Macros
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237 ;;;
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238
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239 (defsubst pascal-get-beg-of-line (&optional arg)
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240 (save-excursion
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241 (beginning-of-line arg)
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242 (point)))
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243
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244 (defsubst pascal-get-end-of-line (&optional arg)
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245 (save-excursion
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246 (end-of-line arg)
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247 (point)))
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248
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249 (defun pascal-declaration-end ()
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250 (let ((nest 1))
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251 (while (and (> nest 0)
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252 (re-search-forward
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253 "[:=]\\|\\(\\<record\\>\\)\\|\\(\\<end\\>\\)"
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254 (save-excursion (end-of-line 2) (point)) t))
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255 (cond ((match-beginning 1) (setq nest (1+ nest)))
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256 ((match-beginning 2) (setq nest (1- nest)))
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257 ((looking-at "[^(\n]+)") (setq nest 0))))))
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258
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259
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260 (defun pascal-declaration-beg ()
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261 (let ((nest 1))
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262 (while (and (> nest 0)
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263 (re-search-backward "[:=]\\|\\<\\(type\\|var\\|label\\|const\\)\\>\\|\\(\\<record\\>\\)\\|\\(\\<end\\>\\)" (pascal-get-beg-of-line 0) t))
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264 (cond ((match-beginning 1) (setq nest 0))
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265 ((match-beginning 2) (setq nest (1- nest)))
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266 ((match-beginning 3) (setq nest (1+ nest)))))
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267 (= nest 0)))
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268
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269
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270 (defsubst pascal-within-string ()
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271 (save-excursion
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272 (nth 3 (parse-partial-sexp (pascal-get-beg-of-line) (point)))))
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273
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274
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275 ;;;###autoload
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276 (defun pascal-mode ()
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277 "Major mode for editing Pascal code. \\<pascal-mode-map>
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278 TAB indents for Pascal code. Delete converts tabs to spaces as it moves back.
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279
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280 \\[pascal-complete-word] completes the word around current point with respect \
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281 to position in code
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282 \\[pascal-show-completions] shows all possible completions at this point.
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283
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284 Other useful functions are:
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285
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286 \\[pascal-mark-defun]\t- Mark function.
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287 \\[pascal-insert-block]\t- insert begin ... end;
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288 \\[pascal-star-comment]\t- insert (* ... *)
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289 \\[pascal-comment-area]\t- Put marked area in a comment, fixing nested comments.
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290 \\[pascal-uncomment-area]\t- Uncomment an area commented with \
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291 \\[pascal-comment-area].
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292 \\[pascal-beg-of-defun]\t- Move to beginning of current function.
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293 \\[pascal-end-of-defun]\t- Move to end of current function.
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294 \\[pascal-goto-defun]\t- Goto function prompted for in the minibuffer.
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295 \\[pascal-outline]\t- Enter pascal-outline-mode (see also pascal-outline).
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296
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297 Variables controlling indentation/edit style:
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298
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299 pascal-indent-level (default 3)
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300 Indentation of Pascal statements with respect to containing block.
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301 pascal-case-indent (default 2)
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302 Indentation for case statements.
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303 pascal-auto-newline (default nil)
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304 Non-nil means automatically newline after simcolons and the punctation mark
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305 after an end.
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306 pascal-tab-always-indent (default t)
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307 Non-nil means TAB in Pascal mode should always reindent the current line,
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308 regardless of where in the line point is when the TAB command is used.
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309 pascal-auto-endcomments (default t)
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310 Non-nil means a comment { ... } is set after the ends which ends cases and
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311 functions. The name of the function or case will be set between the braces.
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312 pascal-auto-lineup (default t)
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313 List of contexts where auto lineup of :'s or ='s hould be done.
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314
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315 See also the user variables pascal-type-keywords, pascal-start-keywords and
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316 pascal-separator-keywords.
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317
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318 Turning on Pascal mode calls the value of the variable pascal-mode-hook with
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319 no args, if that value is non-nil."
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320 (interactive)
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321 (kill-all-local-variables)
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322 (use-local-map pascal-mode-map)
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323 (setq major-mode 'pascal-mode)
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324 (setq mode-name "Pascal")
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325 (setq local-abbrev-table pascal-mode-abbrev-table)
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326 (set-syntax-table pascal-mode-syntax-table)
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327 (make-local-variable 'indent-line-function)
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328 (setq indent-line-function 'pascal-indent-line)
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329 (setq comment-indent-function 'pascal-indent-comment)
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330 (make-local-variable 'comment-start)
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331 (setq comment-start "{")
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332 (make-local-variable 'parse-sexp-ignore-comments)
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333 (setq parse-sexp-ignore-comments nil)
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334 (make-local-variable 'case-fold-search)
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335 (setq case-fold-search t)
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336 (make-local-variable 'comment-start-skip)
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337 (setq comment-start-skip "(\\*+ *\\|{ *")
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338 (make-local-variable 'comment-end)
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339 (setq comment-end "}")
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340 ; (make-local-variable 'imenu-generic-expression)
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341 ; (setq imenu-generic-expression pascal-imenu-generic-expression)
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342 (run-hooks 'pascal-mode-hook))
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343
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344
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345
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346 ;;;
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347 ;;; Electric functions
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348 ;;;
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349 (defun electric-pascal-terminate-line ()
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350 "Terminate line and indent next line."
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351 (interactive)
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352 ;; First, check if current line should be indented
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353 (save-excursion
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354 (beginning-of-line)
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355 (skip-chars-forward " \t")
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356 (if (looking-at pascal-autoindent-lines-re)
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357 (pascal-indent-line)))
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358 (delete-horizontal-space) ; Removes trailing whitespaces
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359 (newline)
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360 ;; Indent next line
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361 (pascal-indent-line)
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362 ;; Maybe we should set some endcomments
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363 (if pascal-auto-endcomments
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364 (pascal-set-auto-comments))
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365 ;; Check if we shall indent inside comment
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366 (let ((setstar nil))
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367 (save-excursion
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368 (forward-line -1)
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369 (skip-chars-forward " \t")
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370 (cond ((looking-at "\\*[ \t]+)")
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371 ;; Delete region between `*' and `)' if there is only whitespaces.
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372 (forward-char 1)
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373 (delete-horizontal-space))
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374 ((and (looking-at "(\\*\\|\\*[^)]")
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375 (not (save-excursion
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376 (search-forward "*)" (pascal-get-end-of-line) t))))
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377 (setq setstar t))))
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378 ;; If last line was a star comment line then this one shall be too.
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379 (if (null setstar)
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380 (pascal-indent-line)
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381 (insert "* "))))
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382
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383
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384 (defun electric-pascal-semi-or-dot ()
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385 "Insert `;' or `.' character and reindent the line."
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386 (interactive)
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387 (insert last-command-char)
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388 (save-excursion
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389 (beginning-of-line)
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390 (pascal-indent-line))
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391 (if pascal-auto-newline
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392 (electric-pascal-terminate-line)))
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393
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394 (defun electric-pascal-colon ()
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395 "Insert `:' and do all indentions except line indent on this line."
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396 (interactive)
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397 (insert last-command-char)
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398 ;; Do nothing if within string.
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|
399 (if (pascal-within-string)
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400 ()
|
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401 (save-excursion
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402 (beginning-of-line)
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|
403 (pascal-indent-line))
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404 (let ((pascal-tab-always-indent nil))
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405 (pascal-indent-command))))
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406
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|
407 (defun electric-pascal-equal ()
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|
408 "Insert `=', and do indention if within type declaration."
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|
409 (interactive)
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410 (insert last-command-char)
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|
411 (if (eq (car (pascal-calculate-indent)) 'declaration)
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412 (let ((pascal-tab-always-indent nil))
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413 (pascal-indent-command))))
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414
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|
415 (defun electric-pascal-hash ()
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416 "Insert `#', and indent to coulmn 0 if this is a CPP directive."
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|
417 (interactive)
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|
418 (insert last-command-char)
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|
419 (if (save-excursion (beginning-of-line) (looking-at "^[ \t]*#"))
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|
420 (save-excursion (beginning-of-line)
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|
|
421 (delete-horizontal-space))))
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422
|
|
|
423 (defun electric-pascal-tab ()
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|
424 "Function called when TAB is pressed in Pascal mode."
|
|
|
425 (interactive)
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|
426 ;; Do nothing if within a string or in a CPP directive.
|
|
|
427 (if (or (pascal-within-string)
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|
|
428 (and (not (bolp))
|
|
|
429 (save-excursion (beginning-of-line) (eq (following-char) ?#))))
|
|
|
430 (insert "\t")
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|
|
431 ;; If pascal-tab-always-indent, indent the beginning of the line.
|
|
|
432 (if pascal-tab-always-indent
|
|
|
433 (save-excursion
|
|
|
434 (beginning-of-line)
|
|
|
435 (pascal-indent-line))
|
|
|
436 (if (save-excursion
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|
|
437 (skip-chars-backward " \t")
|
|
|
438 (bolp))
|
|
|
439 (pascal-indent-line)
|
|
|
440 (insert "\t")))
|
|
|
441 (pascal-indent-command)))
|
|
|
442
|
|
|
443
|
|
|
444
|
|
|
445 ;;;
|
|
|
446 ;;; Interactive functions
|
|
|
447 ;;;
|
|
|
448 (defun pascal-insert-block ()
|
|
|
449 "Insert Pascal begin ... end; block in the code with right indentation."
|
|
|
450 (interactive)
|
|
|
451 (pascal-indent-line)
|
|
|
452 (insert "begin")
|
|
|
453 (electric-pascal-terminate-line)
|
|
|
454 (save-excursion
|
|
|
455 (electric-pascal-terminate-line)
|
|
|
456 (insert "end;")
|
|
|
457 (beginning-of-line)
|
|
|
458 (pascal-indent-line)))
|
|
|
459
|
|
|
460 (defun pascal-star-comment ()
|
|
|
461 "Insert Pascal star comment at point."
|
|
|
462 (interactive)
|
|
|
463 (pascal-indent-line)
|
|
|
464 (insert "(*")
|
|
|
465 (electric-pascal-terminate-line)
|
|
|
466 (save-excursion
|
|
|
467 (electric-pascal-terminate-line)
|
|
|
468 (delete-horizontal-space)
|
|
|
469 (insert ")"))
|
|
|
470 (insert " "))
|
|
|
471
|
|
|
472 (defun pascal-mark-defun ()
|
|
|
473 "Mark the current pascal function (or procedure).
|
|
|
474 This puts the mark at the end, and point at the beginning."
|
|
|
475 (interactive)
|
|
|
476 (push-mark (point))
|
|
|
477 (pascal-end-of-defun)
|
|
|
478 (push-mark (point))
|
|
|
479 (pascal-beg-of-defun)
|
|
|
480 (if (fboundp 'zmacs-activate-region)
|
|
|
481 (zmacs-activate-region)))
|
|
|
482
|
|
|
483 (defun pascal-comment-area (start end)
|
|
|
484 "Put the region into a Pascal comment.
|
|
|
485 The comments that are in this area are \"deformed\":
|
|
|
486 `*)' becomes `!(*' and `}' becomes `!{'.
|
|
|
487 These deformed comments are returned to normal if you use
|
|
|
488 \\[pascal-uncomment-area] to undo the commenting.
|
|
|
489
|
|
|
490 The commented area starts with `pascal-exclude-str-start', and ends with
|
|
|
491 `pascal-include-str-end'. But if you change these variables,
|
|
|
492 \\[pascal-uncomment-area] won't recognize the comments."
|
|
|
493 (interactive "r")
|
|
|
494 (save-excursion
|
|
|
495 ;; Insert start and endcomments
|
|
|
496 (goto-char end)
|
|
|
497 (if (and (save-excursion (skip-chars-forward " \t") (eolp))
|
|
|
498 (not (save-excursion (skip-chars-backward " \t") (bolp))))
|
|
|
499 (forward-line 1)
|
|
|
500 (beginning-of-line))
|
|
|
501 (insert pascal-exclude-str-end)
|
|
|
502 (setq end (point))
|
|
|
503 (newline)
|
|
|
504 (goto-char start)
|
|
|
505 (beginning-of-line)
|
|
|
506 (insert pascal-exclude-str-start)
|
|
|
507 (newline)
|
|
|
508 ;; Replace end-comments within commented area
|
|
|
509 (goto-char end)
|
|
|
510 (save-excursion
|
|
|
511 (while (re-search-backward "\\*)" start t)
|
|
|
512 (replace-match "!(*" t t)))
|
|
|
513 (save-excursion
|
|
|
514 (while (re-search-backward "}" start t)
|
|
|
515 (replace-match "!{" t t)))))
|
|
|
516
|
|
|
517 (defun pascal-uncomment-area ()
|
|
|
518 "Uncomment a commented area; change deformed comments back to normal.
|
|
|
519 This command does nothing if the pointer is not in a commented
|
|
|
520 area. See also `pascal-comment-area'."
|
|
|
521 (interactive)
|
|
|
522 (save-excursion
|
|
|
523 (let ((start (point))
|
|
|
524 (end (point)))
|
|
|
525 ;; Find the boundaries of the comment
|
|
|
526 (save-excursion
|
|
|
527 (setq start (progn (search-backward pascal-exclude-str-start nil t)
|
|
|
528 (point)))
|
|
|
529 (setq end (progn (search-forward pascal-exclude-str-end nil t)
|
|
|
530 (point))))
|
|
|
531 ;; Check if we're really inside a comment
|
|
|
532 (if (or (equal start (point)) (<= end (point)))
|
|
|
533 (message "Not standing within commented area.")
|
|
|
534 (progn
|
|
|
535 ;; Remove endcomment
|
|
|
536 (goto-char end)
|
|
|
537 (beginning-of-line)
|
|
|
538 (let ((pos (point)))
|
|
|
539 (end-of-line)
|
|
|
540 (delete-region pos (1+ (point))))
|
|
|
541 ;; Change comments back to normal
|
|
|
542 (save-excursion
|
|
|
543 (while (re-search-backward "!{" start t)
|
|
|
544 (replace-match "}" t t)))
|
|
|
545 (save-excursion
|
|
|
546 (while (re-search-backward "!(\\*" start t)
|
|
|
547 (replace-match "*)" t t)))
|
|
|
548 ;; Remove startcomment
|
|
|
549 (goto-char start)
|
|
|
550 (beginning-of-line)
|
|
|
551 (let ((pos (point)))
|
|
|
552 (end-of-line)
|
|
|
553 (delete-region pos (1+ (point)))))))))
|
|
|
554
|
|
|
555 (defun pascal-beg-of-defun ()
|
|
|
556 "Move backward to the beginning of the current function or procedure."
|
|
|
557 (interactive)
|
|
|
558 (catch 'found
|
|
|
559 (if (not (looking-at (concat "\\s \\|\\s)\\|" pascal-defun-re)))
|
|
|
560 (forward-sexp 1))
|
|
|
561 (let ((nest 0) (max -1) (func 0)
|
|
|
562 (reg (concat pascal-beg-block-re "\\|"
|
|
|
563 pascal-end-block-re "\\|"
|
|
|
564 pascal-defun-re)))
|
|
|
565 (while (re-search-backward reg nil 'move)
|
|
|
566 (cond ((let ((state (save-excursion
|
|
|
567 (parse-partial-sexp (point-min) (point)))))
|
|
|
568 (or (nth 3 state) (nth 4 state))) ; Inside string or comment
|
|
|
569 ())
|
|
|
570 ((match-end 1) ; begin|case|record|repeat
|
|
|
571 (if (and (looking-at "\\<record\\>") (>= max 0))
|
|
|
572 (setq func (1- func)))
|
|
|
573 (setq nest (1+ nest)
|
|
|
574 max (max nest max)))
|
|
|
575 ((match-end 2) ; end|until
|
|
|
576 (if (and (= nest max) (>= max 0))
|
|
|
577 (setq func (1+ func)))
|
|
|
578 (setq nest (1- nest)))
|
|
|
579 ((match-end 3) ; function|procedure
|
|
|
580 (if (= 0 func)
|
|
|
581 (throw 'found t)
|
|
|
582 (setq func (1- func)))))))
|
|
|
583 nil))
|
|
|
584
|
|
|
585 (defun pascal-end-of-defun ()
|
|
|
586 "Move forward to the end of the current function or procedure."
|
|
|
587 (interactive)
|
|
|
588 (if (looking-at "\\s ")
|
|
|
589 (forward-sexp 1))
|
|
|
590 (if (not (looking-at pascal-defun-re))
|
|
|
591 (pascal-beg-of-defun))
|
|
|
592 (forward-char 1)
|
|
|
593 (let ((nest 0) (func 1)
|
|
|
594 (reg (concat pascal-beg-block-re "\\|"
|
|
|
595 pascal-end-block-re "\\|"
|
|
|
596 pascal-defun-re)))
|
|
|
597 (while (and (/= func 0)
|
|
|
598 (re-search-forward reg nil 'move))
|
|
|
599 (cond ((let ((state (save-excursion
|
|
|
600 (parse-partial-sexp (point-min) (point)))))
|
|
|
601 (or (nth 3 state) (nth 4 state))) ; Inside string or comment
|
|
|
602 ())
|
|
|
603 ((match-end 1)
|
|
|
604 (setq nest (1+ nest))
|
|
|
605 (if (save-excursion
|
|
|
606 (goto-char (match-beginning 0))
|
|
|
607 (looking-at "\\<record\\>"))
|
|
|
608 (setq func (1+ func))))
|
|
|
609 ((match-end 2)
|
|
|
610 (setq nest (1- nest))
|
|
|
611 (if (= nest 0)
|
|
|
612 (setq func (1- func))))
|
|
|
613 ((match-end 3)
|
|
|
614 (setq func (1+ func))))))
|
|
|
615 (forward-line 1))
|
|
|
616
|
|
|
617 (defun pascal-end-of-statement ()
|
|
|
618 "Move forward to end of current statement."
|
|
|
619 (interactive)
|
|
|
620 (let ((parse-sexp-ignore-comments t)
|
|
|
621 (nest 0) pos
|
|
|
622 (regexp (concat "\\(" pascal-beg-block-re "\\)\\|\\("
|
|
|
623 pascal-end-block-re "\\)")))
|
|
|
624 (if (not (looking-at "[ \t\n]")) (forward-sexp -1))
|
|
|
625 (or (looking-at pascal-beg-block-re)
|
|
|
626 ;; Skip to end of statement
|
|
|
627 (setq pos (catch 'found
|
|
|
628 (while t
|
|
|
629 (forward-sexp 1)
|
|
|
630 (cond ((looking-at "[ \t]*;")
|
|
|
631 (skip-chars-forward "^;")
|
|
|
632 (forward-char 1)
|
|
|
633 (throw 'found (point)))
|
|
|
634 ((save-excursion
|
|
|
635 (forward-sexp -1)
|
|
|
636 (looking-at pascal-beg-block-re))
|
|
|
637 (goto-char (match-beginning 0))
|
|
|
638 (throw 'found nil))
|
|
|
639 ((eobp)
|
|
|
640 (throw 'found (point))))))))
|
|
|
641 (if (not pos)
|
|
|
642 ;; Skip a whole block
|
|
|
643 (catch 'found
|
|
|
644 (while t
|
|
|
645 (re-search-forward regexp nil 'move)
|
|
|
646 (setq nest (if (match-end 1)
|
|
|
647 (1+ nest)
|
|
|
648 (1- nest)))
|
|
|
649 (cond ((eobp)
|
|
|
650 (throw 'found (point)))
|
|
|
651 ((= 0 nest)
|
|
|
652 (throw 'found (pascal-end-of-statement))))))
|
|
|
653 pos)))
|
|
|
654
|
|
|
655 (defun pascal-downcase-keywords ()
|
|
|
656 "Downcase all Pascal keywords in the buffer."
|
|
|
657 (interactive)
|
|
|
658 (pascal-change-keywords 'downcase-word))
|
|
|
659
|
|
|
660 (defun pascal-upcase-keywords ()
|
|
|
661 "Upcase all Pascal keywords in the buffer."
|
|
|
662 (interactive)
|
|
|
663 (pascal-change-keywords 'upcase-word))
|
|
|
664
|
|
|
665 (defun pascal-capitalize-keywords ()
|
|
|
666 "Capitalize all Pascal keywords in the buffer."
|
|
|
667 (interactive)
|
|
|
668 (pascal-change-keywords 'capitalize-word))
|
|
|
669
|
|
|
670 ;; Change the keywords according to argument.
|
|
|
671 (defun pascal-change-keywords (change-word)
|
|
|
672 (save-excursion
|
|
|
673 (let ((keyword-re (concat "\\<\\("
|
|
|
674 (mapconcat 'identity pascal-keywords "\\|")
|
|
|
675 "\\)\\>")))
|
|
|
676 (goto-char (point-min))
|
|
|
677 (while (re-search-forward keyword-re nil t)
|
|
|
678 (funcall change-word -1)))))
|
|
|
679
|
|
|
680
|
|
|
681
|
|
|
682 ;;;
|
|
|
683 ;;; Other functions
|
|
|
684 ;;;
|
|
|
685 (defun pascal-set-auto-comments ()
|
|
|
686 "Insert `{ case }' or `{ NAME }' on this line if appropriate.
|
|
|
687 Insert `{ case }' if there is an `end' on the line which
|
|
|
688 ends a case block. Insert `{ NAME }' if there is an `end'
|
|
|
689 on the line which ends a function or procedure named NAME."
|
|
|
690 (save-excursion
|
|
|
691 (forward-line -1)
|
|
|
692 (skip-chars-forward " \t")
|
|
|
693 (if (and (looking-at "\\<end;")
|
|
|
694 (not (save-excursion
|
|
|
695 (end-of-line)
|
|
|
696 (search-backward "{" (pascal-get-beg-of-line) t))))
|
|
|
697 (let ((type (car (pascal-calculate-indent))))
|
|
|
698 (if (eq type 'declaration)
|
|
|
699 ()
|
|
|
700 (if (eq type 'case)
|
|
|
701 ;; This is a case block
|
|
|
702 (progn
|
|
|
703 (end-of-line)
|
|
|
704 (delete-horizontal-space)
|
|
|
705 (insert " { case }"))
|
|
|
706 (let ((nest 1))
|
|
|
707 ;; Check if this is the end of a function
|
|
|
708 (save-excursion
|
|
|
709 (while (not (or (looking-at pascal-defun-re) (bobp)))
|
|
|
710 (backward-sexp 1)
|
|
|
711 (cond ((looking-at pascal-beg-block-re)
|
|
|
712 (setq nest (1- nest)))
|
|
|
713 ((looking-at pascal-end-block-re)
|
|
|
714 (setq nest (1+ nest)))))
|
|
|
715 (if (bobp)
|
|
|
716 (setq nest 1)))
|
|
|
717 (if (zerop nest)
|
|
|
718 (progn
|
|
|
719 (end-of-line)
|
|
|
720 (delete-horizontal-space)
|
|
|
721 (insert " { ")
|
|
|
722 (let (b e)
|
|
|
723 (save-excursion
|
|
|
724 (setq b (progn (pascal-beg-of-defun)
|
|
|
725 (skip-chars-forward "^ \t")
|
|
|
726 (skip-chars-forward " \t")
|
|
|
727 (point))
|
|
|
728 e (progn (skip-chars-forward "a-zA-Z0-9_")
|
|
|
729 (point))))
|
|
|
730 (insert-buffer-substring (current-buffer) b e))
|
|
|
731 (insert " }"))))))))))
|
|
|
732
|
|
|
733
|
|
|
734
|
|
|
735 ;;;
|
|
|
736 ;;; Indentation
|
|
|
737 ;;;
|
|
|
738 (defconst pascal-indent-alist
|
|
|
739 '((block . (+ ind pascal-indent-level))
|
|
|
740 (case . (+ ind pascal-case-indent))
|
|
|
741 (caseblock . ind) (cpp . 0)
|
|
|
742 (declaration . (+ ind pascal-indent-level))
|
|
|
743 (paramlist . (pascal-indent-paramlist t))
|
|
|
744 (comment . (pascal-indent-comment t))
|
|
|
745 (defun . ind) (contexp . ind)
|
|
|
746 (unknown . 0) (string . 0)))
|
|
|
747
|
|
|
748 (defun pascal-indent-command ()
|
|
|
749 "Indent for special part of code."
|
|
|
750 (let* ((indent-str (pascal-calculate-indent))
|
|
|
751 (type (car indent-str))
|
|
|
752 (ind (car (cdr indent-str))))
|
|
|
753 (cond ((and (eq type 'paramlist)
|
|
|
754 (or (memq 'all pascal-auto-lineup)
|
|
|
755 (memq 'paramlist pascal-auto-lineup)))
|
|
|
756 (pascal-indent-paramlist)
|
|
|
757 (pascal-indent-paramlist))
|
|
|
758 ((and (eq type 'declaration)
|
|
|
759 (or (memq 'all pascal-auto-lineup)
|
|
|
760 (memq 'declaration pascal-auto-lineup)))
|
|
|
761 (pascal-indent-declaration))
|
|
|
762 ((and (eq type 'case) (not (looking-at "^[ \t]*$"))
|
|
|
763 (or (memq 'all pascal-auto-lineup)
|
|
|
764 (memq 'case pascal-auto-lineup)))
|
|
|
765 (pascal-indent-case)))
|
|
|
766 (if (looking-at "[ \t]+$")
|
|
|
767 (skip-chars-forward " \t"))))
|
|
|
768
|
|
|
769 (defun pascal-indent-line ()
|
|
|
770 "Indent current line as a Pascal statement."
|
|
|
771 (let* ((indent-str (pascal-calculate-indent))
|
|
|
772 (type (car indent-str))
|
|
|
773 (ind (car (cdr indent-str))))
|
|
|
774 (if (looking-at "^[0-9a-zA-Z]+[ \t]*:[^=]")
|
|
|
775 (search-forward ":" nil t))
|
|
|
776 (delete-horizontal-space)
|
|
|
777 ;; Some things should not be indented
|
|
|
778 (if (or (and (eq type 'declaration) (looking-at pascal-declaration-re))
|
|
|
779 (eq type 'cpp)
|
|
|
780 (looking-at pascal-defun-re))
|
|
|
781 ()
|
|
|
782 ;; Other things should have no extra indent
|
|
|
783 (if (looking-at pascal-noindent-re)
|
|
|
784 (indent-to ind)
|
|
|
785 ;; But most lines are treated this way:
|
|
|
786 (indent-to (eval (cdr (assoc type pascal-indent-alist))))
|
|
|
787 ))))
|
|
|
788
|
|
|
789 (defun pascal-calculate-indent ()
|
|
|
790 "Calculate the indent of the current Pascal line.
|
|
|
791 Return a list of two elements: (INDENT-TYPE INDENT-LEVEL)."
|
|
|
792 (save-excursion
|
|
|
793 (let* ((parse-sexp-ignore-comments t)
|
|
|
794 (oldpos (point))
|
|
|
795 (state (save-excursion (parse-partial-sexp (point-min) (point))))
|
|
|
796 (nest 0) (par 0) (complete (looking-at "[ \t]*end\\>"))
|
|
|
797 (elsed (looking-at "[ \t]*else\\>"))
|
|
|
798 (type (catch 'nesting
|
|
|
799 ;; Check if inside a string, comment or parenthesis
|
|
|
800 (cond ((nth 3 state) (throw 'nesting 'string))
|
|
|
801 ((nth 4 state) (throw 'nesting 'comment))
|
|
|
802 ((> (car state) 0)
|
|
|
803 (goto-char (scan-lists (point) -1 (car state)))
|
|
|
804 (setq par (1+ (current-column))))
|
|
|
805 ((save-excursion (beginning-of-line)
|
|
|
806 (eq (following-char) ?#))
|
|
|
807 (throw 'nesting 'cpp)))
|
|
|
808 ;; Loop until correct indent is found
|
|
|
809 (while t
|
|
|
810 (backward-sexp 1)
|
|
|
811 (cond (;--Escape from case statements
|
|
|
812 (and (looking-at "[A-Za-z0-9]+[ \t]*:[^=]")
|
|
|
813 (not complete)
|
|
|
814 (save-excursion (skip-chars-backward " \t")
|
|
|
815 (bolp))
|
|
|
816 (= (save-excursion
|
|
|
817 (end-of-line) (backward-sexp) (point))
|
|
|
818 (point))
|
|
|
819 (> (save-excursion (goto-char oldpos)
|
|
|
820 (beginning-of-line)
|
|
|
821 (point))
|
|
|
822 (point)))
|
|
|
823 (throw 'nesting 'caseblock))
|
|
|
824 (;--Nest block outwards
|
|
|
825 (looking-at pascal-beg-block-re)
|
|
|
826 (if (= nest 0)
|
|
|
827 (cond ((looking-at "case\\>")
|
|
|
828 (throw 'nesting 'case))
|
|
|
829 ((looking-at "record\\>")
|
|
|
830 (throw 'nesting 'declaration))
|
|
|
831 (t (throw 'nesting 'block)))
|
|
|
832 (setq nest (1- nest))))
|
|
|
833 (;--Nest block inwards
|
|
|
834 (looking-at pascal-end-block-re)
|
|
|
835 (if (and (looking-at "end\\s ")
|
|
|
836 elsed (not complete))
|
|
|
837 (throw 'nesting 'block))
|
|
|
838 (setq complete t
|
|
|
839 nest (1+ nest)))
|
|
|
840 (;--Defun (or parameter list)
|
|
|
841 (looking-at pascal-defun-re)
|
|
|
842 (if (= 0 par)
|
|
|
843 (throw 'nesting 'defun)
|
|
|
844 (setq par 0)
|
|
|
845 (let ((n 0))
|
|
|
846 (while (re-search-forward
|
|
|
847 "\\(\\<record\\>\\)\\|\\<end\\>"
|
|
|
848 oldpos t)
|
|
|
849 (if (match-end 1)
|
|
|
850 (setq n (1+ n)) (setq n (1- n))))
|
|
|
851 (if (> n 0)
|
|
|
852 (throw 'nesting 'declaration)
|
|
|
853 (throw 'nesting 'paramlist)))))
|
|
|
854 (;--Declaration part
|
|
|
855 (looking-at pascal-declaration-re)
|
|
|
856 (if (save-excursion
|
|
|
857 (goto-char oldpos)
|
|
|
858 (forward-line -1)
|
|
|
859 (looking-at "^[ \t]*$"))
|
|
|
860 (throw 'nesting 'unknown)
|
|
|
861 (throw 'nesting 'declaration)))
|
|
|
862 (;--If, else or while statement
|
|
|
863 (and (not complete)
|
|
|
864 (looking-at pascal-sub-block-re))
|
|
|
865 (throw 'nesting 'block))
|
|
|
866 (;--Found complete statement
|
|
|
867 (save-excursion (forward-sexp 1)
|
|
|
868 (= (following-char) ?\;))
|
|
|
869 (setq complete t))
|
|
|
870 (;--No known statements
|
|
|
871 (bobp)
|
|
|
872 (throw 'nesting 'unknown))
|
|
|
873 )))))
|
|
|
874
|
|
|
875 ;; Return type of block and indent level.
|
|
|
876 (if (> par 0) ; Unclosed Parenthesis
|
|
|
877 (list 'contexp par)
|
|
|
878 (list type (pascal-indent-level))))))
|
|
|
879
|
|
|
880 (defun pascal-indent-level ()
|
|
|
881 "Return the indent-level the current statement has.
|
|
|
882 Do not count labels, case-statements or records."
|
|
|
883 (save-excursion
|
|
|
884 (beginning-of-line)
|
|
|
885 (if (looking-at "[ \t]*[0-9a-zA-Z]+[ \t]*:[^=]")
|
|
|
886 (search-forward ":" nil t)
|
|
|
887 (if (looking-at ".*=[ \t]*record\\>")
|
|
|
888 (search-forward "=" nil t)))
|
|
|
889 (skip-chars-forward " \t")
|
|
|
890 (current-column)))
|
|
|
891
|
|
|
892 (defun pascal-indent-comment (&optional arg)
|
|
|
893 "Indent current line as comment.
|
|
|
894 If optional arg is non-nil, just return the
|
|
|
895 column number the line should be indented to."
|
|
|
896 (let* ((stcol (save-excursion
|
|
|
897 (re-search-backward "(\\*\\|{" nil t)
|
|
|
898 (1+ (current-column)))))
|
|
|
899 (if arg stcol
|
|
|
900 (delete-horizontal-space)
|
|
|
901 (indent-to stcol))))
|
|
|
902
|
|
|
903 (defun pascal-indent-case ()
|
|
|
904 "Indent within case statements."
|
|
|
905 (let ((savepos (point-marker))
|
|
|
906 (end (prog2
|
|
|
907 (end-of-line)
|
|
|
908 (point-marker)
|
|
|
909 (re-search-backward "\\<case\\>" nil t)))
|
|
|
910 (beg (point)) oldpos
|
|
|
911 (ind 0))
|
|
|
912 ;; Get right indent
|
|
|
913 (while (< (point) (marker-position end))
|
|
|
914 (if (re-search-forward
|
|
|
915 "^[ \t]*[^ \t,:]+[ \t]*\\(,[ \t]*[^ \t,:]+[ \t]*\\)*:"
|
|
|
916 (marker-position end) 'move)
|
|
|
917 (forward-char -1))
|
|
|
918 (if (< (point) (marker-position end))
|
|
|
919 (progn
|
|
|
920 (delete-horizontal-space)
|
|
|
921 (if (> (current-column) ind)
|
|
|
922 (setq ind (current-column)))
|
|
|
923 (pascal-end-of-statement))))
|
|
|
924 (goto-char beg)
|
|
|
925 (setq oldpos (marker-position end))
|
|
|
926 ;; Indent all case statements
|
|
|
927 (while (< (point) (marker-position end))
|
|
|
928 (if (re-search-forward
|
|
|
929 "^[ \t]*[^][ \t,\\.:]+[ \t]*\\(,[ \t]*[^ \t,:]+[ \t]*\\)*:"
|
|
|
930 (marker-position end) 'move)
|
|
|
931 (forward-char -1))
|
|
|
932 (indent-to (1+ ind))
|
|
|
933 (if (/= (following-char) ?:)
|
|
|
934 ()
|
|
|
935 (forward-char 1)
|
|
|
936 (delete-horizontal-space)
|
|
|
937 (insert " "))
|
|
|
938 (setq oldpos (point))
|
|
|
939 (pascal-end-of-statement))
|
|
|
940 (goto-char savepos)))
|
|
|
941
|
|
|
942 (defun pascal-indent-paramlist (&optional arg)
|
|
|
943 "Indent current line in parameterlist.
|
|
|
944 If optional arg is non-nil, just return the
|
|
|
945 indent of the current line in parameterlist."
|
|
|
946 (save-excursion
|
|
|
947 (let* ((oldpos (point))
|
|
|
948 (stpos (progn (goto-char (scan-lists (point) -1 1)) (point)))
|
|
|
949 (stcol (1+ (current-column)))
|
|
|
950 (edpos (progn (pascal-declaration-end)
|
|
|
951 (search-backward ")" (pascal-get-beg-of-line) t)
|
|
|
952 (point)))
|
|
|
953 (usevar (re-search-backward "\\<var\\>" stpos t)))
|
|
|
954 (if arg (progn
|
|
|
955 ;; If arg, just return indent
|
|
|
956 (goto-char oldpos)
|
|
|
957 (beginning-of-line)
|
|
|
958 (if (or (not usevar) (looking-at "[ \t]*var\\>"))
|
|
|
959 stcol (+ 4 stcol)))
|
|
|
960 (goto-char stpos)
|
|
|
961 (forward-char 1)
|
|
|
962 (delete-horizontal-space)
|
|
|
963 (if (and usevar (not (looking-at "var\\>")))
|
|
|
964 (indent-to (+ 4 stcol)))
|
|
|
965 (pascal-indent-declaration nil stpos edpos)))))
|
|
|
966
|
|
|
967 (defun pascal-indent-declaration (&optional arg start end)
|
|
|
968 "Indent current lines as declaration, lining up the `:'s or `='s."
|
|
|
969 (let ((pos (point-marker)))
|
|
|
970 (if (and (not (or arg start)) (not (pascal-declaration-beg)))
|
|
|
971 ()
|
|
|
972 (let ((lineup (if (or (looking-at "\\<var\\>\\|\\<record\\>") arg start)
|
|
|
973 ":" "="))
|
|
|
974 (stpos (if start start
|
|
|
975 (forward-word 2) (backward-word 1) (point)))
|
|
|
976 (edpos (set-marker (make-marker)
|
|
|
977 (if end end
|
|
|
978 (max (progn (pascal-declaration-end)
|
|
|
979 (point))
|
|
|
980 pos))))
|
|
|
981 ind)
|
|
|
982
|
|
|
983 (goto-char stpos)
|
|
|
984 ;; Indent lines in record block
|
|
|
985 (if arg
|
|
|
986 (while (<= (point) (marker-position edpos))
|
|
|
987 (beginning-of-line)
|
|
|
988 (delete-horizontal-space)
|
|
|
989 (if (looking-at "end\\>")
|
|
|
990 (indent-to arg)
|
|
|
991 (indent-to (+ arg pascal-indent-level)))
|
|
|
992 (forward-line 1)))
|
|
|
993
|
|
|
994 ;; Do lineup
|
|
|
995 (setq ind (pascal-get-lineup-indent stpos edpos lineup))
|
|
|
996 (goto-char stpos)
|
|
|
997 (while (<= (point) (marker-position edpos))
|
|
|
998 (if (search-forward lineup (pascal-get-end-of-line) 'move)
|
|
|
999 (forward-char -1))
|
|
|
1000 (delete-horizontal-space)
|
|
|
1001 (indent-to ind)
|
|
|
1002 (if (not (looking-at lineup))
|
|
|
1003 (forward-line 1) ; No more indent if there is no : or =
|
|
|
1004 (forward-char 1)
|
|
|
1005 (delete-horizontal-space)
|
|
|
1006 (insert " ")
|
|
|
1007 ;; Indent record block
|
|
|
1008 (if (looking-at "record\\>")
|
|
|
1009 (pascal-indent-declaration (current-column)))
|
|
|
1010 (forward-line 1)))))
|
|
|
1011
|
|
|
1012 ;; If arg - move point
|
|
|
1013 (if arg (forward-line -1)
|
|
|
1014 (goto-char (marker-position pos)))))
|
|
|
1015
|
|
|
1016 ; "Return the indent level that will line up several lines within the region
|
|
|
1017 ;from b to e nicely. The lineup string is str."
|
|
|
1018 (defun pascal-get-lineup-indent (b e str)
|
|
|
1019 (save-excursion
|
|
|
1020 (let ((ind 0)
|
|
|
1021 (reg (concat str "\\|\\(\\<record\\>\\)"))
|
|
|
1022 nest)
|
|
|
1023 (goto-char b)
|
|
|
1024 ;; Get rightmost position
|
|
|
1025 (while (< (point) e)
|
|
|
1026 (setq nest 1)
|
|
|
1027 (if (re-search-forward reg (min e (pascal-get-end-of-line 2)) 'move)
|
|
|
1028 (progn
|
|
|
1029 ;; Skip record blocks
|
|
|
1030 (if (match-beginning 1)
|
|
|
1031 (pascal-declaration-end)
|
|
|
1032 (progn
|
|
|
1033 (goto-char (match-beginning 0))
|
|
|
1034 (skip-chars-backward " \t")
|
|
|
1035 (if (> (current-column) ind)
|
|
|
1036 (setq ind (current-column)))
|
|
|
1037 (goto-char (match-end 0)))))))
|
|
|
1038 ;; In case no lineup was found
|
|
|
1039 (if (> ind 0)
|
|
|
1040 (1+ ind)
|
|
|
1041 ;; No lineup-string found
|
|
|
1042 (goto-char b)
|
|
|
1043 (end-of-line)
|
|
|
1044 (skip-chars-backward " \t")
|
|
|
1045 (1+ (current-column))))))
|
|
|
1046
|
|
|
1047
|
|
|
1048
|
|
|
1049 ;;;
|
|
|
1050 ;;; Completion
|
|
|
1051 ;;;
|
|
|
1052 (defvar pascal-str nil)
|
|
|
1053 (defvar pascal-all nil)
|
|
|
1054 (defvar pascal-pred nil)
|
|
|
1055 (defvar pascal-buffer-to-use nil)
|
|
|
1056 (defvar pascal-flag nil)
|
|
|
1057
|
|
|
1058 (defun pascal-string-diff (str1 str2)
|
|
|
1059 "Return index of first letter where STR1 and STR2 differs."
|
|
|
1060 (catch 'done
|
|
|
1061 (let ((diff 0))
|
|
|
1062 (while t
|
|
|
1063 (if (or (> (1+ diff) (length str1))
|
|
|
1064 (> (1+ diff) (length str2)))
|
|
|
1065 (throw 'done diff))
|
|
|
1066 (or (equal (aref str1 diff) (aref str2 diff))
|
|
|
1067 (throw 'done diff))
|
|
|
1068 (setq diff (1+ diff))))))
|
|
|
1069
|
|
|
1070 ;; Calculate all possible completions for functions if argument is `function',
|
|
|
1071 ;; completions for procedures if argument is `procedure' or both functions and
|
|
|
1072 ;; procedures otherwise.
|
|
|
1073
|
|
|
1074 (defun pascal-func-completion (type)
|
|
|
1075 ;; Build regular expression for function/procedure names
|
|
|
1076 (if (string= pascal-str "")
|
|
|
1077 (setq pascal-str "[a-zA-Z_]"))
|
|
|
1078 (let ((pascal-str (concat (cond
|
|
|
1079 ((eq type 'procedure) "\\<\\(procedure\\)\\s +")
|
|
|
1080 ((eq type 'function) "\\<\\(function\\)\\s +")
|
|
|
1081 (t "\\<\\(function\\|procedure\\)\\s +"))
|
|
|
1082 "\\<\\(" pascal-str "[a-zA-Z0-9_.]*\\)\\>"))
|
|
|
1083 match)
|
|
|
1084
|
|
|
1085 (if (not (looking-at "\\<\\(function\\|procedure\\)\\>"))
|
|
|
1086 (re-search-backward "\\<\\(function\\|procedure\\)\\>" nil t))
|
|
|
1087 (forward-char 1)
|
|
|
1088
|
|
|
1089 ;; Search through all reachable functions
|
|
|
1090 (while (pascal-beg-of-defun)
|
|
|
1091 (if (re-search-forward pascal-str (pascal-get-end-of-line) t)
|
|
|
1092 (progn (setq match (buffer-substring (match-beginning 2)
|
|
|
1093 (match-end 2)))
|
|
|
1094 (if (or (null pascal-pred)
|
|
|
1095 (funcall pascal-pred match))
|
|
|
1096 (setq pascal-all (cons match pascal-all)))))
|
|
|
1097 (goto-char (match-beginning 0)))))
|
|
|
1098
|
|
|
1099 (defun pascal-get-completion-decl ()
|
|
|
1100 ;; Macro for searching through current declaration (var, type or const)
|
|
|
1101 ;; for matches of `str' and adding the occurence tp `all'
|
|
|
1102 (let ((end (save-excursion (pascal-declaration-end)
|
|
|
1103 (point)))
|
|
|
1104 match)
|
|
|
1105 ;; Traverse lines
|
|
|
1106 (while (< (point) end)
|
|
|
1107 (if (re-search-forward "[:=]" (pascal-get-end-of-line) t)
|
|
|
1108 ;; Traverse current line
|
|
|
1109 (while (and (re-search-backward
|
|
|
1110 (concat "\\((\\|\\<\\(var\\|type\\|const\\)\\>\\)\\|"
|
|
|
1111 pascal-symbol-re)
|
|
|
1112 (pascal-get-beg-of-line) t)
|
|
|
1113 (not (match-end 1)))
|
|
|
1114 (setq match (buffer-substring (match-beginning 0) (match-end 0)))
|
|
|
1115 (if (string-match (concat "\\<" pascal-str) match)
|
|
|
1116 (if (or (null pascal-pred)
|
|
|
1117 (funcall pascal-pred match))
|
|
|
1118 (setq pascal-all (cons match pascal-all))))))
|
|
|
1119 (if (re-search-forward "\\<record\\>" (pascal-get-end-of-line) t)
|
|
|
1120 (pascal-declaration-end)
|
|
|
1121 (forward-line 1)))))
|
|
|
1122
|
|
|
1123 (defun pascal-type-completion ()
|
|
|
1124 "Calculate all possible completions for types."
|
|
|
1125 (let ((start (point))
|
|
|
1126 goon)
|
|
|
1127 ;; Search for all reachable type declarations
|
|
|
1128 (while (or (pascal-beg-of-defun)
|
|
|
1129 (setq goon (not goon)))
|
|
|
1130 (save-excursion
|
|
|
1131 (if (and (< start (prog1 (save-excursion (pascal-end-of-defun)
|
|
|
1132 (point))
|
|
|
1133 (forward-char 1)))
|
|
|
1134 (re-search-forward
|
|
|
1135 "\\<type\\>\\|\\<\\(begin\\|function\\|procedure\\)\\>"
|
|
|
1136 start t)
|
|
|
1137 (not (match-end 1)))
|
|
|
1138 ;; Check current type declaration
|
|
|
1139 (pascal-get-completion-decl))))))
|
|
|
1140
|
|
|
1141 (defun pascal-var-completion ()
|
|
|
1142 "Calculate all possible completions for variables (or constants)."
|
|
|
1143 (let ((start (point))
|
|
|
1144 goon twice)
|
|
|
1145 ;; Search for all reachable var declarations
|
|
|
1146 (while (or (pascal-beg-of-defun)
|
|
|
1147 (setq goon (not goon)))
|
|
|
1148 (save-excursion
|
|
|
1149 (if (> start (prog1 (save-excursion (pascal-end-of-defun)
|
|
|
1150 (point))))
|
|
|
1151 () ; Declarations not reacable
|
|
|
1152 (if (search-forward "(" (pascal-get-end-of-line) t)
|
|
|
1153 ;; Check parameterlist
|
|
|
1154 (pascal-get-completion-decl))
|
|
|
1155 (setq twice 2)
|
|
|
1156 (while (>= (setq twice (1- twice)) 0)
|
|
|
1157 (cond ((and (re-search-forward
|
|
|
1158 (concat "\\<\\(var\\|const\\)\\>\\|"
|
|
|
1159 "\\<\\(begin\\|function\\|procedure\\)\\>")
|
|
|
1160 start t)
|
|
|
1161 (not (match-end 2)))
|
|
|
1162 ;; Check var/const declarations
|
|
|
1163 (pascal-get-completion-decl))
|
|
|
1164 ((match-end 2)
|
|
|
1165 (setq twice 0)))))))))
|
|
|
1166
|
|
|
1167
|
|
|
1168 (defun pascal-keyword-completion (keyword-list)
|
|
|
1169 "Give list of all possible completions of keywords in KEYWORD-LIST."
|
|
|
1170 (mapcar '(lambda (s)
|
|
|
1171 (if (string-match (concat "\\<" pascal-str) s)
|
|
|
1172 (if (or (null pascal-pred)
|
|
|
1173 (funcall pascal-pred s))
|
|
|
1174 (setq pascal-all (cons s pascal-all)))))
|
|
|
1175 keyword-list))
|
|
|
1176
|
|
|
1177 ;; Function passed to completing-read, try-completion or
|
|
|
1178 ;; all-completions to get completion on STR. If predicate is non-nil,
|
|
|
1179 ;; it must be a function to be called for every match to check if this
|
|
|
1180 ;; should really be a match. If flag is t, the function returns a list
|
|
|
1181 ;; of all possible completions. If it is nil it returns a string, the
|
|
|
1182 ;; longest possible completion, or t if STR is an exact match. If flag
|
|
|
1183 ;; is 'lambda, the function returns t if STR is an exact match, nil
|
|
|
1184 ;; otherwise.
|
|
|
1185
|
|
|
1186 (defun pascal-completion (pascal-str pascal-pred pascal-flag)
|
|
|
1187 (save-excursion
|
|
|
1188 (let ((pascal-all nil))
|
|
|
1189 ;; Set buffer to use for searching labels. This should be set
|
|
|
1190 ;; within functins which use pascal-completions
|
|
|
1191 (set-buffer pascal-buffer-to-use)
|
|
|
1192
|
|
|
1193 ;; Determine what should be completed
|
|
|
1194 (let ((state (car (pascal-calculate-indent))))
|
|
|
1195 (cond (;--Within a declaration or parameterlist
|
|
|
1196 (or (eq state 'declaration) (eq state 'paramlist)
|
|
|
1197 (and (eq state 'defun)
|
|
|
1198 (save-excursion
|
|
|
1199 (re-search-backward ")[ \t]*:"
|
|
|
1200 (pascal-get-beg-of-line) t))))
|
|
|
1201 (if (or (eq state 'paramlist) (eq state 'defun))
|
|
|
1202 (pascal-beg-of-defun))
|
|
|
1203 (pascal-type-completion)
|
|
|
1204 (pascal-keyword-completion pascal-type-keywords))
|
|
|
1205 (;--Starting a new statement
|
|
|
1206 (and (not (eq state 'contexp))
|
|
|
1207 (save-excursion
|
|
|
1208 (skip-chars-backward "a-zA-Z0-9_.")
|
|
|
1209 (backward-sexp 1)
|
|
|
1210 (or (looking-at pascal-nosemi-re)
|
|
|
1211 (progn
|
|
|
1212 (forward-sexp 1)
|
|
|
1213 (looking-at "\\s *\\(;\\|:[^=]\\)")))))
|
|
|
1214 (save-excursion (pascal-var-completion))
|
|
|
1215 (pascal-func-completion 'procedure)
|
|
|
1216 (pascal-keyword-completion pascal-start-keywords))
|
|
|
1217 (t;--Anywhere else
|
|
|
1218 (save-excursion (pascal-var-completion))
|
|
|
1219 (pascal-func-completion 'function)
|
|
|
1220 (pascal-keyword-completion pascal-separator-keywords))))
|
|
|
1221
|
|
|
1222 ;; Now we have built a list of all matches. Give response to caller
|
|
|
1223 (pascal-completion-response))))
|
|
|
1224
|
|
|
1225 (defun pascal-completion-response ()
|
|
|
1226 (cond ((or (equal pascal-flag 'lambda) (null pascal-flag))
|
|
|
1227 ;; This was not called by all-completions
|
|
|
1228 (if (null pascal-all)
|
|
|
1229 ;; Return nil if there was no matching label
|
|
|
1230 nil
|
|
|
1231 ;; Get longest string common in the labels
|
|
|
1232 (let* ((elm (cdr pascal-all))
|
|
|
1233 (match (car pascal-all))
|
|
|
1234 (min (length match))
|
|
|
1235 exact tmp)
|
|
|
1236 (if (string= match pascal-str)
|
|
|
1237 ;; Return t if first match was an exact match
|
|
|
1238 (setq match t)
|
|
|
1239 (while (not (null elm))
|
|
|
1240 ;; Find longest common string
|
|
|
1241 (if (< (setq tmp (pascal-string-diff match (car elm))) min)
|
|
|
1242 (progn
|
|
|
1243 (setq min tmp)
|
|
|
1244 (setq match (substring match 0 min))))
|
|
|
1245 ;; Terminate with match=t if this is an exact match
|
|
|
1246 (if (string= (car elm) pascal-str)
|
|
|
1247 (progn
|
|
|
1248 (setq match t)
|
|
|
1249 (setq elm nil))
|
|
|
1250 (setq elm (cdr elm)))))
|
|
|
1251 ;; If this is a test just for exact match, return nil ot t
|
|
|
1252 (if (and (equal pascal-flag 'lambda) (not (equal match 't)))
|
|
|
1253 nil
|
|
|
1254 match))))
|
|
|
1255 ;; If flag is t, this was called by all-completions. Return
|
|
|
1256 ;; list of all possible completions
|
|
|
1257 (pascal-flag
|
|
|
1258 pascal-all)))
|
|
|
1259
|
|
|
1260 (defvar pascal-last-word-numb 0)
|
|
|
1261 (defvar pascal-last-word-shown nil)
|
|
|
1262 (defvar pascal-last-completions nil)
|
|
|
1263
|
|
|
1264 (defun pascal-complete-word ()
|
|
|
1265 "Complete word at current point.
|
|
|
1266 \(See also `pascal-toggle-completions', `pascal-type-keywords',
|
|
|
1267 `pascal-start-keywords' and `pascal-separator-keywords'.)"
|
|
|
1268 (interactive)
|
|
|
1269 (let* ((b (save-excursion (skip-chars-backward "a-zA-Z0-9_") (point)))
|
|
|
1270 (e (save-excursion (skip-chars-forward "a-zA-Z0-9_") (point)))
|
|
|
1271 (pascal-str (buffer-substring b e))
|
|
|
1272 ;; The following variable is used in pascal-completion
|
|
|
1273 (pascal-buffer-to-use (current-buffer))
|
|
|
1274 (allcomp (if (and pascal-toggle-completions
|
|
|
1275 (string= pascal-last-word-shown pascal-str))
|
|
|
1276 pascal-last-completions
|
|
|
1277 (all-completions pascal-str 'pascal-completion)))
|
|
|
1278 (match (if pascal-toggle-completions
|
|
|
1279 "" (try-completion
|
|
|
1280 pascal-str (mapcar '(lambda (elm)
|
|
|
1281 (cons elm 0)) allcomp)))))
|
|
|
1282 ;; Delete old string
|
|
|
1283 (delete-region b e)
|
|
|
1284
|
|
|
1285 ;; Toggle-completions inserts whole labels
|
|
|
1286 (if pascal-toggle-completions
|
|
|
1287 (progn
|
|
|
1288 ;; Update entry number in list
|
|
|
1289 (setq pascal-last-completions allcomp
|
|
|
1290 pascal-last-word-numb
|
|
|
1291 (if (>= pascal-last-word-numb (1- (length allcomp)))
|
|
|
1292 0
|
|
|
1293 (1+ pascal-last-word-numb)))
|
|
|
1294 (setq pascal-last-word-shown (elt allcomp pascal-last-word-numb))
|
|
|
1295 ;; Display next match or same string if no match was found
|
|
|
1296 (if (not (null allcomp))
|
|
|
1297 (insert "" pascal-last-word-shown)
|
|
|
1298 (insert "" pascal-str)
|
|
|
1299 (message "(No match)")))
|
|
|
1300 ;; The other form of completion does not necessarly do that.
|
|
|
1301
|
|
|
1302 ;; Insert match if found, or the original string if no match
|
|
|
1303 (if (or (null match) (equal match 't))
|
|
|
1304 (progn (insert "" pascal-str)
|
|
|
1305 (message "(No match)"))
|
|
|
1306 (insert "" match))
|
|
|
1307 ;; Give message about current status of completion
|
|
|
1308 (cond ((equal match 't)
|
|
|
1309 (if (not (null (cdr allcomp)))
|
|
|
1310 (message "(Complete but not unique)")
|
|
|
1311 (message "(Sole completion)")))
|
|
|
1312 ;; Display buffer if the current completion didn't help
|
|
|
1313 ;; on completing the label.
|
|
|
1314 ((and (not (null (cdr allcomp))) (= (length pascal-str)
|
|
|
1315 (length match)))
|
|
|
1316 (with-output-to-temp-buffer "*Completions*"
|
|
|
1317 (display-completion-list allcomp))
|
|
|
1318 ;; Wait for a keypress. Then delete *Completion* window
|
|
|
1319 (momentary-string-display "" (point))
|
|
|
1320 (delete-window (get-buffer-window (get-buffer "*Completions*")))
|
|
|
1321 )))))
|
|
|
1322
|
|
|
1323 (defun pascal-show-completions ()
|
|
|
1324 "Show all possible completions at current point."
|
|
|
1325 (interactive)
|
|
|
1326 (let* ((b (save-excursion (skip-chars-backward "a-zA-Z0-9_") (point)))
|
|
|
1327 (e (save-excursion (skip-chars-forward "a-zA-Z0-9_") (point)))
|
|
|
1328 (pascal-str (buffer-substring b e))
|
|
|
1329 ;; The following variable is used in pascal-completion
|
|
|
1330 (pascal-buffer-to-use (current-buffer))
|
|
|
1331 (allcomp (if (and pascal-toggle-completions
|
|
|
1332 (string= pascal-last-word-shown pascal-str))
|
|
|
1333 pascal-last-completions
|
|
|
1334 (all-completions pascal-str 'pascal-completion))))
|
|
|
1335 ;; Show possible completions in a temporary buffer.
|
|
|
1336 (with-output-to-temp-buffer "*Completions*"
|
|
|
1337 (display-completion-list allcomp))
|
|
|
1338 ;; Wait for a keypress. Then delete *Completion* window
|
|
|
1339 (momentary-string-display "" (point))
|
|
|
1340 (delete-window (get-buffer-window (get-buffer "*Completions*")))))
|
|
|
1341
|
|
|
1342
|
|
|
1343 (defun pascal-get-default-symbol ()
|
|
|
1344 "Return symbol around current point as a string."
|
|
|
1345 (save-excursion
|
|
|
1346 (buffer-substring (progn
|
|
|
1347 (skip-chars-backward " \t")
|
|
|
1348 (skip-chars-backward "a-zA-Z0-9_")
|
|
|
1349 (point))
|
|
|
1350 (progn
|
|
|
1351 (skip-chars-forward "a-zA-Z0-9_")
|
|
|
1352 (point)))))
|
|
|
1353
|
|
|
1354 (defun pascal-build-defun-re (str &optional arg)
|
|
|
1355 "Return function/procedure starting with STR as regular expression.
|
|
|
1356 With optional second arg non-nil, STR is the complete name of the instruction."
|
|
|
1357 (if arg
|
|
|
1358 (concat "^\\(function\\|procedure\\)[ \t]+\\(" str "\\)\\>")
|
|
|
1359 (concat "^\\(function\\|procedure\\)[ \t]+\\(" str "[a-zA-Z0-9_]*\\)\\>")))
|
|
|
1360
|
|
|
1361 ;; Function passed to completing-read, try-completion or
|
|
|
1362 ;; all-completions to get completion on any function name. If
|
|
|
1363 ;; predicate is non-nil, it must be a function to be called for every
|
|
|
1364 ;; match to check if this should really be a match. If flag is t, the
|
|
|
1365 ;; function returns a list of all possible completions. If it is nil
|
|
|
1366 ;; it returns a string, the longest possible completion, or t if STR
|
|
|
1367 ;; is an exact match. If flag is 'lambda, the function returns t if
|
|
|
1368 ;; STR is an exact match, nil otherwise.
|
|
|
1369
|
|
|
1370 (defun pascal-comp-defun (pascal-str pascal-pred pascal-flag)
|
|
|
1371 (save-excursion
|
|
|
1372 (let ((pascal-all nil)
|
|
|
1373 match)
|
|
|
1374
|
|
|
1375 ;; Set buffer to use for searching labels. This should be set
|
|
|
1376 ;; within functins which use pascal-completions
|
|
|
1377 (set-buffer pascal-buffer-to-use)
|
|
|
1378
|
|
|
1379 (let ((pascal-str pascal-str))
|
|
|
1380 ;; Build regular expression for functions
|
|
|
1381 (if (string= pascal-str "")
|
|
|
1382 (setq pascal-str (pascal-build-defun-re "[a-zA-Z_]"))
|
|
|
1383 (setq pascal-str (pascal-build-defun-re pascal-str)))
|
|
|
1384 (goto-char (point-min))
|
|
|
1385
|
|
|
1386 ;; Build a list of all possible completions
|
|
|
1387 (while (re-search-forward pascal-str nil t)
|
|
|
1388 (setq match (buffer-substring (match-beginning 2) (match-end 2)))
|
|
|
1389 (if (or (null pascal-pred)
|
|
|
1390 (funcall pascal-pred match))
|
|
|
1391 (setq pascal-all (cons match pascal-all)))))
|
|
|
1392
|
|
|
1393 ;; Now we have built a list of all matches. Give response to caller
|
|
|
1394 (pascal-completion-response))))
|
|
|
1395
|
|
|
1396 (defun pascal-goto-defun ()
|
|
|
1397 "Move to specified Pascal function/procedure.
|
|
|
1398 The default is a name found in the buffer around point."
|
|
|
1399 (interactive)
|
|
|
1400 (let* ((default (pascal-get-default-symbol))
|
|
|
1401 ;; The following variable is used in pascal-comp-function
|
|
|
1402 (pascal-buffer-to-use (current-buffer))
|
|
|
1403 (default (if (pascal-comp-defun default nil 'lambda)
|
|
|
1404 default ""))
|
|
|
1405 (label (if (not (string= default ""))
|
|
|
1406 ;; Do completion with default
|
|
|
1407 (completing-read (concat "Label: (default " default ") ")
|
|
|
1408 'pascal-comp-defun nil t "")
|
|
|
1409 ;; There is no default value. Complete without it
|
|
|
1410 (completing-read "Label: "
|
|
|
1411 'pascal-comp-defun nil t ""))))
|
|
|
1412 ;; If there was no response on prompt, use default value
|
|
|
1413 (if (string= label "")
|
|
|
1414 (setq label default))
|
|
|
1415 ;; Goto right place in buffer if label is not an empty string
|
|
|
1416 (or (string= label "")
|
|
|
1417 (progn
|
|
|
1418 (goto-char (point-min))
|
|
|
1419 (re-search-forward (pascal-build-defun-re label t))
|
|
|
1420 (beginning-of-line)))))
|
|
|
1421
|
|
|
1422
|
|
|
1423
|
|
|
1424 ;;;
|
|
|
1425 ;;; Pascal-outline-mode
|
|
|
1426 ;;;
|
|
|
1427 (defvar pascal-outline-map nil "Keymap used in Pascal Outline mode.")
|
|
|
1428
|
|
|
1429 (if pascal-outline-map
|
|
|
1430 nil
|
|
|
1431 (if (boundp 'set-keymap-name)
|
|
|
1432 (set-keymap-name pascal-outline-map 'pascal-outline-map))
|
|
|
1433 (if (not (boundp 'set-keymap-parent))
|
|
|
1434 (setq pascal-outline-map (copy-keymap pascal-mode-map))
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|
1435 (setq pascal-outline-map (make-sparse-keymap))
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1436 (set-keymap-parent pascal-outline-map pascal-mode-map))
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1437 (define-key pascal-outline-map "\M-\C-a" 'pascal-outline-prev-defun)
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|
1438 (define-key pascal-outline-map "\M-\C-e" 'pascal-outline-next-defun)
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|
|
1439 (define-key pascal-outline-map "\C-c\C-d" 'pascal-outline-goto-defun)
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|
|
1440 (define-key pascal-outline-map "\C-c\C-s" 'pascal-show-all)
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|
1441 (define-key pascal-outline-map "\C-c\C-h" 'pascal-hide-other-defuns))
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|
1442
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|
|
1443 (defvar pascal-outline-mode nil "Non-nil while using Pascal Outline mode.")
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|
1444 (make-variable-buffer-local 'pascal-outline-mode)
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|
1445 (set-default 'pascal-outline-mode nil)
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|
1446 (if (not (assoc 'pascal-outline-mode minor-mode-alist))
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|
|
1447 (setq minor-mode-alist (append minor-mode-alist
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|
1448 (list '(pascal-outline-mode " Outl")))))
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|
1449
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|
|
1450 (defun pascal-outline (&optional arg)
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|
|
1451 "Outline-line minor mode for Pascal mode.
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|
1452 When in Pascal Outline mode, portions
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|
1453 of the text being edited may be made invisible. \\<pascal-outline-map>
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1454
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|
1455 Pascal Outline mode provides some additional commands.
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1456
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1457 \\[pascal-outline-prev-defun]\
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|
1458 \t- Move to previous function/procedure, hiding everything else.
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|
1459 \\[pascal-outline-next-defun]\
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|
|
1460 \t- Move to next function/procedure, hiding everything else.
|
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|
1461 \\[pascal-outline-goto-defun]\
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|
|
1462 \t- Goto function/procedure prompted for in minibuffer,
|
|
|
1463 \t hide all other functions.
|
|
|
1464 \\[pascal-show-all]\t- Show the whole buffer.
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|
1465 \\[pascal-hide-other-defuns]\
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|
1466 \t- Hide everything but the current function (function under the cursor).
|
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|
1467 \\[pascal-outline]\t- Leave pascal-outline-mode."
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|
1468 (interactive "P")
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|
|
1469 (setq pascal-outline-mode
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|
1470 (if (null arg) (not pascal-outline-mode) t))
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|
|
1471 (if (boundp 'redraw-mode-line)
|
|
|
1472 (redraw-mode-line))
|
|
|
1473 (if pascal-outline-mode
|
|
|
1474 (progn
|
|
|
1475 (setq selective-display t)
|
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|
1476 (use-local-map pascal-outline-map))
|
|
|
1477 (progn
|
|
|
1478 (setq selective-display nil)
|
|
|
1479 (pascal-show-all)
|
|
|
1480 (use-local-map pascal-mode-map))))
|
|
|
1481
|
|
|
1482 (defun pascal-outline-change (b e pascal-flag)
|
|
|
1483 (let ((modp (buffer-modified-p)))
|
|
|
1484 (unwind-protect
|
|
|
1485 (subst-char-in-region b e (if (= pascal-flag ?\n)
|
|
|
1486 ?\^M ?\n) pascal-flag)
|
|
|
1487 (set-buffer-modified-p modp))))
|
|
|
1488
|
|
|
1489 (defun pascal-show-all ()
|
|
|
1490 "Show all of the text in the buffer."
|
|
|
1491 (interactive)
|
|
|
1492 (pascal-outline-change (point-min) (point-max) ?\n))
|
|
|
1493
|
|
|
1494 (defun pascal-hide-other-defuns ()
|
|
|
1495 "Show only the current defun."
|
|
|
1496 (interactive)
|
|
|
1497 (save-excursion
|
|
|
1498 (let ((beg (progn (if (not (looking-at "\\(function\\|procedure\\)\\>"))
|
|
|
1499 (pascal-beg-of-defun))
|
|
|
1500 (point)))
|
|
|
1501 (end (progn (pascal-end-of-defun)
|
|
|
1502 (backward-sexp 1)
|
|
|
1503 (search-forward "\n\\|\^M" nil t)
|
|
|
1504 (point)))
|
|
|
1505 (opoint (point-min)))
|
|
|
1506 (goto-char (point-min))
|
|
|
1507
|
|
|
1508 ;; Hide all functions before current function
|
|
|
1509 (while (re-search-forward "^\\(function\\|procedure\\)\\>" beg 'move)
|
|
|
1510 (pascal-outline-change opoint (1- (match-beginning 0)) ?\^M)
|
|
|
1511 (setq opoint (point))
|
|
|
1512 ;; Functions may be nested
|
|
|
1513 (if (> (progn (pascal-end-of-defun) (point)) beg)
|
|
|
1514 (goto-char opoint)))
|
|
|
1515 (if (> beg opoint)
|
|
|
1516 (pascal-outline-change opoint (1- beg) ?\^M))
|
|
|
1517
|
|
|
1518 ;; Show current function
|
|
|
1519 (pascal-outline-change beg end ?\n)
|
|
|
1520 ;; Hide nested functions
|
|
|
1521 (forward-char 1)
|
|
|
1522 (while (re-search-forward "^\\(function\\|procedure\\)\\>" end 'move)
|
|
|
1523 (setq opoint (point))
|
|
|
1524 (pascal-end-of-defun)
|
|
|
1525 (pascal-outline-change opoint (point) ?\^M))
|
|
|
1526
|
|
|
1527 (goto-char end)
|
|
|
1528 (setq opoint end)
|
|
|
1529
|
|
|
1530 ;; Hide all function after current function
|
|
|
1531 (while (re-search-forward "^\\(function\\|procedure\\)\\>" nil 'move)
|
|
|
1532 (pascal-outline-change opoint (1- (match-beginning 0)) ?\^M)
|
|
|
1533 (setq opoint (point))
|
|
|
1534 (pascal-end-of-defun))
|
|
|
1535 (pascal-outline-change opoint (point-max) ?\^M)
|
|
|
1536
|
|
|
1537 ;; Hide main program
|
|
|
1538 (if (< (progn (forward-line -1) (point)) end)
|
|
|
1539 (progn
|
|
|
1540 (goto-char beg)
|
|
|
1541 (pascal-end-of-defun)
|
|
|
1542 (backward-sexp 1)
|
|
|
1543 (pascal-outline-change (point) (point-max) ?\^M))))))
|
|
|
1544
|
|
|
1545 (defun pascal-outline-next-defun ()
|
|
|
1546 "Move to next function/procedure, hiding all others."
|
|
|
1547 (interactive)
|
|
|
1548 (pascal-end-of-defun)
|
|
|
1549 (pascal-hide-other-defuns))
|
|
|
1550
|
|
|
1551 (defun pascal-outline-prev-defun ()
|
|
|
1552 "Move to previous function/procedure, hiding all others."
|
|
|
1553 (interactive)
|
|
|
1554 (pascal-beg-of-defun)
|
|
|
1555 (pascal-hide-other-defuns))
|
|
|
1556
|
|
|
1557 (defun pascal-outline-goto-defun ()
|
|
|
1558 "Move to specified function/procedure, hiding all others."
|
|
|
1559 (interactive)
|
|
|
1560 (pascal-goto-defun)
|
|
|
1561 (pascal-hide-other-defuns))
|
|
|
1562
|
|
|
1563 ;;; pascal.el ends here
|
