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1 ;;!emacs
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2 ;;
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3 ;; FILE: c++-browse.el
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4 ;; SUMMARY: C++ source code browser.
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5 ;; USAGE: GNU Emacs Lisp Library
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6 ;; KEYWORDS: c, oop, tools
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7 ;;
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8 ;; AUTHOR: Bob Weiner
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9 ;; ORG: Motorola Inc.
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10 ;;
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11 ;; ORIG-DATE: 12-Dec-89
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12 ;; LAST-MOD: 20-Sep-95 at 14:18:40 by Bob Weiner
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13 ;;
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14 ;; Copyright (C) 1989-1995 Free Software Foundation, Inc.
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15 ;; See the file BR-COPY for license information.
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16 ;;
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17 ;; This file is part of the OO-Browser.
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18 ;;
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19 ;; DESCRIPTION:
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20 ;;
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21 ;; Use 'c++-browse' to invoke the C++ OO-Browser. Prefix arg prompts for
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22 ;; name of Environment file.
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23 ;;
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24 ;; DESCRIP-END.
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25
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26 ;; ************************************************************************
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27 ;; Other required Elisp libraries
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28 ;; ************************************************************************
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29
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30 (mapcar 'require '(br-start br br-c++-ft))
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31
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32 ;;; ************************************************************************
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33 ;;; Public functions
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34 ;;; ************************************************************************
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35
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36 ;;;###autoload
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37 (defun c++-browse (&optional env-file no-ui)
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38 "Invoke the C++ OO-Browser.
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39 This allows browsing through C++ library and system class hierarchies. With
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40 an optional non-nil prefix argument ENV-FILE, prompt for Environment file to
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41 use. Alternatively, a string value of ENV-FILE is used as the Environment
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42 file name. See also the file \"br-help\"."
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43 (interactive "P")
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44 (let ((same-lang (equal br-lang-prefix c++-lang-prefix))
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45 (load-succeeded t)
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46 same-env)
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47 (if same-lang
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48 nil
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49 ;; Save other language Environment in memory
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50 (if br-lang-prefix (br-env-copy nil))
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51 (setq br-lang-prefix c++-lang-prefix
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52 *br-save-wconfig* nil))
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53 (setq same-env (or (equal c++-env-file env-file)
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54 (and (null env-file)
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55 (or c++-lib-search-dirs c++-sys-search-dirs))))
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56 (cond
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57 ;; Continue browsing an Environment
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58 ((and same-env same-lang))
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59 ((and same-env (not same-lang))
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60 (c++-browse-setup) (br-env-copy t))
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61 ;;
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62 ;; Create default Environment file specification if needed and none
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63 ;; exists.
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64 ;;
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65 (t (or env-file (file-exists-p c++-env-file)
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66 (br-env-create c++-env-file c++-lang-prefix))
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67 (or env-file (setq env-file c++-env-file))
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68 ;;
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69 ;; Start browsing a new Environment.
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70 ;;
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71 (c++-browse-setup)
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72 (setq load-succeeded (br-env-init env-file same-lang nil))
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73 (if load-succeeded
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74 (setq *br-save-wconfig* nil
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75 c++-env-file load-succeeded
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76 c++-sys-search-dirs br-sys-search-dirs
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77 c++-lib-search-dirs br-lib-search-dirs))))
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78 (cond (load-succeeded
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79 (br-init)
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80 (or no-ui (br-browse)))
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81 (no-ui nil)
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82 (t (message "(c++-browse): You must build the Environment to browse it.")))))
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83
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84 ;; Don't filter Environment classes when listed.
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85 (fset 'c++-class-list-filter 'identity)
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86
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87 (defun c++-mode-setup ()
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88 "Load best available C++ major mode and set 'br-lang-mode' to the function that invokes it."
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89 (fset 'br-lang-mode
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90 (cond ((or (featurep 'cc-mode) (featurep 'c++-mode))
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91 'c++-mode)
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92 ((load "cc-mode" 'missing-ok 'nomessage)
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93 (provide 'c++-mode))
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94 ((load "c++-mode" 'missing-ok 'nomessage)
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95 (provide 'c++-mode))
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96 ((featurep 'c-mode) 'c-mode)
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97 ((load "c-mode" nil 'nomessage)
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98 (provide 'c-mode)))))
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99
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100 ;;; ************************************************************************
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101 ;;; Internal functions
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102 ;;; ************************************************************************
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103
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104 (defun c++-browse-setup ()
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105 "Setup language-dependent functions for OO-Browser."
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106 (br-setup-functions)
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107 ;; Use this until an info function is implemented for the language.
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108 (fmakunbound 'br-insert-class-info)
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109 (fset 'br-store-class-info 'c++-store-class-info)
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110 (c++-mode-setup)
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111 (br-setup-constants)
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112 ;; Setup to add default classes to system class table after building it.
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113 ;; This must come after br-setup-constants call since it clears these
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114 ;; hooks.
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115 (if (fboundp 'add-hook)
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116 (add-hook 'br-after-build-sys-hook 'c++-add-default-classes)
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117 (setq br-after-build-sys-hook '(c++-add-default-classes))))
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118
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119 (provide 'c++-browse)
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