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171
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1 ;;; cc-menus.el --- imenu support for CC Mode
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2
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3 ;; Copyright (C) 1985,87,92,93,94,95,96,97 Free Software Foundation, Inc.
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4
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5 ;; Authors: 1992-1997 Barry A. Warsaw
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6 ;; 1987 Dave Detlefs and Stewart Clamen
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7 ;; 1985 Richard M. Stallman
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8 ;; Maintainer: cc-mode-help@python.org
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9 ;; Created: 22-Apr-1997 (split from cc-mode.el)
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189
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10 ;; Version: 5.18
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165
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11 ;; Keywords: c languages oop
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12
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13 ;; This file is part of GNU Emacs.
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14
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15 ;; GNU Emacs is free software; you can redistribute it and/or modify
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16 ;; it under the terms of the GNU General Public License as published by
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17 ;; the Free Software Foundation; either version 2, or (at your option)
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18 ;; any later version.
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19
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20 ;; GNU Emacs is distributed in the hope that it will be useful,
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21 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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22 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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23 ;; GNU General Public License for more details.
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24
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25 ;; You should have received a copy of the GNU General Public License
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26 ;; along with GNU Emacs; see the file COPYING. If not, write to the
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27 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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28 ;; Boston, MA 02111-1307, USA.
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29
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30
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31 ;; imenu integration
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189
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32 (defvar cc-imenu-c-prototype-macro-regexp nil
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33 "RE matching macro names used to conditionally specify function prototypes.
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34
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35 For example:
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36
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37 #ifdef __STDC__
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38 #define _P(x) x
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39 #else
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40 #define _P(x) /*nothing*/
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41 #endif
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42
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43 int main _P( (int argc, char *argv[]) )
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44
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45 A sample value might look like: `\\(_P\\|_PROTO\\)'.")
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46
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165
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47 (defvar cc-imenu-c++-generic-expression
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48 (`
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189
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49 (
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50 ;; Try to match ::operator definitions first. Otherwise `X::operator new ()'
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51 ;; will be incorrectly recognised as function `new ()' because the regexps
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52 ;; work by backtracking from the end of the definition.
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53 (nil
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165
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54 (,
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55 (concat
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189
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56 "^\\<.*"
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57 "[^a-zA-Z0-9_:<>~]" ; match any non-identifier char
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58 ; (note: this can be `\n')
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59 "\\("
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60 "\\([a-zA-Z0-9_:<>~]*::\\)?" ; match an operator
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61 "operator\\>[ \t]*"
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62 "\\(()\\|[^(]*\\)" ; special case for `()' operator
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63 "\\)"
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64
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65 "[ \t]*([^)]*)[ \t]*[^ \t;]" ; followed by ws, arg list,
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66 ; require something other than
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67 ; a `;' after the (...) to
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68 ; avoid prototypes. Can't
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69 ; catch cases with () inside
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70 ; the parentheses surrounding
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71 ; the parameters. e.g.:
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72 ; `int foo(int a=bar()) {...}'
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73 )) 1)
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74 ;; Special case to match a line like `main() {}'
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75 ;; e.g. no return type, not even on the previous line.
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76 (nil
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77 (,
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78 (concat
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79 "^"
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80 "\\([a-zA-Z_][a-zA-Z0-9_:<>~]*\\)" ; match function name
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81 "[ \t]*([^)]*)[ \t]*[^ \t;]" ; see above
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82 )) 1)
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83 ;; Special case for definitions using phony prototype macros like:
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84 ;; `int main _PROTO( (int argc,char *argv[]) )'.
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85 ;; This case is only included if cc-imenu-c-prototype-macro-regexp is set.
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86 ;; Only supported in c-code, so no `:<>~' chars in function name!
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87 (,@ (if cc-imenu-c-prototype-macro-regexp
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88 (` ((nil
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89 (,
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90 (concat
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91 "^\\<.*" ; line MUST start with word char
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92 "[^a-zA-Z0-9_]" ; match any non-identifier char
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93 "\\([a-zA-Z_][a-zA-Z0-9_]*\\)" ; match function name
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94 "[ \t]*" ; whitespace before macro name
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95 cc-imenu-c-prototype-macro-regexp
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96 "[ \t]*(" ; ws followed by first paren.
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97 "[ \t]*([^)]*)[ \t]*[^ \t;]" ; see above
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98 )) 1)))))
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99 ;; General function name regexp
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100 (nil
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101 (,
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102 (concat
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103 "^\\<.*" ; line MUST start with word char
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104 "[^a-zA-Z0-9_:<>~]" ; match any non-identifier char
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105 "\\([a-zA-Z_][a-zA-Z0-9_:<>~]*\\)" ; match function name
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106 "[ \t]*([^)]*)[ \t]*[^ \t;]" ; see above
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107 )) 1)
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108 ;; Class definitions
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165
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109 ("Class"
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110 (, (concat
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189
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111 "^" ; beginning of line is required
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112 "\\(template[ \t]*<[^>]+>[ \t]*\\)?" ; there may be a `template <...>'
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113 "class[ \t]+"
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114 "\\([a-zA-Z0-9_]+\\)" ; the string we want to get
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115 "[ \t]*[:{]"
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116 )) 2)))
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165
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117 "Imenu generic expression for C++ mode. See `imenu-generic-expression'.")
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118
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119 (defvar cc-imenu-c-generic-expression
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120 cc-imenu-c++-generic-expression
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121 "Imenu generic expression for C mode. See `imenu-generic-expression'.")
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122
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123 (defvar cc-imenu-java-generic-expression
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124 (`
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125 ((nil
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126 (,
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127 (concat
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128 "^\\([ \t]\\)*"
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129 "\\([A-Za-z0-9_-]+[ \t]+\\)?" ; type specs; there can be
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130 "\\([A-Za-z0-9_-]+[ \t]+\\)?" ; more than 3 tokens, right?
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131 "\\([A-Za-z0-9_-]+[ \t]*[[]?[]]?\\)"
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132 "\\([ \t]\\)"
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133 "\\([A-Za-z0-9_-]+\\)" ; the string we want to get
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134 "\\([ \t]*\\)+("
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135 "\\([a-zA-Z,_1-9\n \t]*[[]?[]]?\\)*" ; arguments
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136 ")[ \t]*"
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189
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137 ; "[^;(]"
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138 "[,a-zA-Z_1-9\n \t]*{"
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139 )) 6)))
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140 "Imenu generic expression for Java mode. See `imenu-generic-expression'.")
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141
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189
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142 (defvar cc-imenu-objc-generic-expression
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143 (concat
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144 ;; For C
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145 ;; Pick a token by (match-string 6)
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146 (car (cdr (car cc-imenu-c++-generic-expression)))
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147 ;; For Objective-C
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148 ;; Pick a token by (match-string 8)
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149 "\\|\\("
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150 "^[-+][:a-zA-Z0-9()*_<>\n\t ]*[;{]" ; Methods
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151 "\\|"
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152 "^@interface[\t ]+[a-zA-Z0-9_]+[\t ]*:"
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153 "\\|"
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154 "^@interface[\t ]+[a-zA-Z0-9_]+[\t ]*([a-zA-Z0-9_]+)"
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155 "\\|"
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156 ;; For NSObject, NSProxy and Object... They don't have super class.
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157 "^@interface[\t ]+[a-zA-Z0-9_]+[\t ]*.*$"
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158 "\\|"
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159 "^@implementation[\t ]+[a-zA-Z0-9_]+[\t ]*([a-zA-Z0-9_]+)"
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160 "\\|"
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161 "^@implementation[\t ]+[a-zA-Z0-9_]+"
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162 "\\|"
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163 "^@protocol[\t ]+[a-zA-Z0-9_]+" "\\)")
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164 "Imenu generic expression for ObjC mode. See `imenu-generic-expression'.")
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165
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166
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167 ;; Imenu support for objective-c uses functions.
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168 (defsubst cc-imenu-objc-method-to-selector (method)
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169 "Return the objc selector style string of METHOD.
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170 Example:
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171 - perform: (SEL)aSelector withObject: object1 withObject: object2; /* METHOD */
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172 =>
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173 -perform:withObject:withObject:withObject: /* selector */"
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174 (let ((return "") ; String to be returned
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175 (p 0) ; Current scanning position in METHOD
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176 (pmax (length method)) ;
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177 char ; Current scanning target
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178 (betweenparen 0) ; CHAR is in parentheses.
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179 argreq ; An argument is required.
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180 inargvar) ; position of CHAR is in an argument variable.
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181 (while (< p pmax)
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182 (setq char (aref method p)
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183 p (1+ p))
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184 (cond
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185 ;; Is CHAR part of a objc token?
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186 ((and (not inargvar) ; Ignore if CHAR is part of an argument variable.
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187 (eq 0 betweenparen) ; Ignore if CHAR is in parentheses.
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188 (or (and (<= ?a char) (<= char ?z))
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189 (and (<= ?A char) (<= char ?Z))
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190 (and (<= ?0 char) (<= char ?9))
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191 (= ?_ char)))
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192 (if argreq
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193 (setq inargvar t
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194 argreq nil)
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195 (setq return (concat return (char-to-string char)))))
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196 ;; Or a white space?
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197 ((and inargvar (or (eq ?\ char) (eq ?\n char))
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198 (setq inargvar nil)))
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199 ;; Or a method separator?
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200 ;; If a method separator, the next token will be an argument variable.
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201 ((eq ?: char)
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202 (setq argreq t
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203 return (concat return (char-to-string char))))
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204 ;; Or an open parentheses?
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205 ((eq ?\( char)
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206 (setq betweenparen (1+ betweenparen)))
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207 ;; Or a close parentheses?
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208 ((eq ?\) char)
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209 (setq betweenparen (1- betweenparen)))))
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210 return))
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211
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212 (defun cc-imenu-objc-remove-white-space (str)
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213 "Remove all spaces and tabs from STR."
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214 (let ((return "")
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215 (p 0)
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216 (max (length str))
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217 char)
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218 (while (< p max)
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219 (setq char (aref str p))
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220 (setq p (1+ p))
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221 (if (or (= char ?\ ) (= char ?\t))
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222 ()
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223 (setq return (concat return (char-to-string char)))))
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224 return))
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225
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226 (defun cc-imenu-objc-function ()
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227 "imenu supports for objc-mode."
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228 (let (methodlist
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229 clist
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230 (C 6)
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231 (OBJC 8)
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232 langnum
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233 (classcount 0)
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234 toplist
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235 stupid
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236 str
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237 str2
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238 (intflen (length "@interface"))
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239 (implen (length "@implementation"))
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240 (prtlen (length "@protocol"))
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241 bufsubst-fun)
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242 ;;
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243 ;; Does this emacs has buffer-substring-no-properties?
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244 ;;
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245 (fset 'bufsubst-fun (if (fboundp 'buffer-substring-no-properties)
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246 (symbol-function 'buffer-substring-no-properties)
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247 (symbol-function 'buffer-substring)))
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248 (goto-char (point-max))
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249 (imenu-progress-message stupid 0)
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250 ;;
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251 (while (re-search-backward cc-imenu-objc-generic-expression nil t)
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252 (imenu-progress-message stupid)
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253 (setq langnum (if (match-beginning C) C OBJC))
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254 (setq str (bufsubst-fun (match-beginning langnum) (match-end langnum)))
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255 ;;
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256 (cond
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257 ;;
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258 ;; C
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259 ;;
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260 ((eq langnum C)
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261 (setq clist (cons (cons str (match-beginning langnum)) clist)))
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262 ;;
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263 ;; ObjC
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264 ;;
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265 ;; An instance Method
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266 ((eq (aref str 0) ?-)
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267 (setq str (concat "-" (cc-imenu-objc-method-to-selector str)))
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268 (setq methodlist (cons (cons str
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269 (match-beginning langnum))
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270 methodlist)))
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271 ;; A factory Method
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272 ((eq (aref str 0) ?+)
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273 (setq str (concat "+" (cc-imenu-objc-method-to-selector str)))
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274 (setq methodlist (cons (cons str
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275 (match-beginning langnum))
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276 methodlist)))
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277 ;; Interface or implementation or protocol
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278 ((eq (aref str 0) ?@)
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279 (setq classcount (1+ classcount))
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280 (cond
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281 ((and (> (length str) implen)
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282 (string= (substring str 0 implen) "@implementation"))
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283 (setq str (substring str implen)
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284 str2 "@implementation"))
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285 ((string= (substring str 0 intflen) "@interface")
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286 (setq str (substring str intflen)
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287 str2 "@interface"))
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288 ((string= (substring str 0 prtlen) "@protocol")
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289 (setq str (substring str prtlen)
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290 str2 "@protocol")))
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291 (setq str (cc-imenu-objc-remove-white-space str))
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292 (setq methodlist (cons (cons str2
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293 (match-beginning langnum))
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294 methodlist))
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295 (setq toplist (cons nil (cons (cons str
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296 methodlist) toplist))
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297 methodlist nil))))
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298 ;;
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299 (imenu-progress-message stupid 100)
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300 (if (eq (car toplist) nil)
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301 (setq toplist (cdr toplist)))
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302
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303 ;; In this buffer, there is only one or zero @{interface|implementation|protocol}.
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304 (if (< classcount 2)
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305 (let ((classname (car (car toplist)))
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306 (p (cdr (car (cdr (car toplist)))))
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307 last)
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308 (setq toplist (cons (cons classname p) (cdr (cdr (car toplist)))))
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309 ;; Add C lang token
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310 (if clist
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311 (progn
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312 (setq last toplist)
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313 (while (cdr last)
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314 (setq last (cdr last)))
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315 (setcdr last clist))))
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316 ;; Add C lang tokens as a sub menu
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317 (setq toplist (cons (cons "C" clist) toplist)))
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318 ;;
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319 toplist
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320 ))
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321
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165
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322
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323 (provide 'cc-menus)
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324 ;;; cc-menus.el ends here
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