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1 ;;!emacs
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2 ;;
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3 ;; FILE: eif-ise-er.el
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4 ;; SUMMARY: Parses ISE's Eiffel error messages; compiles Eiffel classes.
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5 ;; USAGE: GNU Emacs Lisp Library
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6 ;; KEYWORDS: 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: 7-Dec-89 at 00:17:18
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12 ;; LAST-MOD: 17-Apr-95 at 12:39:18 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 ;; 'eif-ec' compiles an Eiffel class.
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22 ;; 'eif-es' compiles an Eiffel system.
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23 ;;
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24 ;; Load this library and then invoke error parsing via {C-x `}.
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25 ;; See the GNU Emacs Manual for an explanation of error parsing.
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26 ;;
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27 ;; 'eif-ise-next-error' bound to {C-x `} parses ISE Eiffel compiler
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28 ;; error messages. As in:
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29 ;;
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30 ;; "my_class", 16: syntax error : Keyword 'expanded' may not be used as identifier
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31 ;;
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32 ;; Only handles compilation lines of the following form:
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33 ;;
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34 ;; <compiler> [<option> ... <option>] <pathname>
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35 ;;
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36 ;; Requires the 'br-class-path', 'br-build-sys-paths-htable', and
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37 ;; 'br-build-paths-htable' functions from the OO-Browser 'br-lib' package.
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38 ;; This is used to determine the full pathname for the source code of each
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39 ;; class since ISE does not include any pathname information in its error
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40 ;; messages.
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41 ;;
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42 ;;
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43 ;; To reset the {C-x `} key to parse non-Eiffel error messages, use:
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44 ;;
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45 ;; {M-x load-lib RTN compile RTN}
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46 ;;
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47 ;; DESCRIP-END.
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48
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49 (require 'br-lib)
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50 (require 'br-eif)
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51 (require 'compile)
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52
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53 (global-set-key "\C-x`" 'eif-ise-next-error)
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54 (and (boundp 'eiffel-mode-map) (define-key eiffel-mode-map "\C-c!" 'eif-ec))
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55
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56 (setq compilation-error-regexp "\"\\([^ \t]+\\)\", \\([0-9]+\\):.*")
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57
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58 (defconst eif-compile-dir nil
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59 "Default directory in which to invoke an Eiffel compile command.")
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60
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61 (defconst eif-compile-cmd "ec"
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62 "Default command name with which to invoke the Eiffel compiler.")
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63
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64 (defun eif-ise-next-error (&optional argp)
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65 "Visit next compilation error message and corresponding source code.
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66 This operates on the output from the \\[compile] command.
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67 If all preparsed error messages have been processed,
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68 the error message buffer is checked for new ones.
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69 A non-nil argument (prefix arg, if interactive)
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70 means reparse the error message buffer and start at the first error."
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71 (interactive "P")
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72 (if (or (eq compilation-error-list t)
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73 argp)
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74 (progn (compilation-forget-errors)
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75 (setq compilation-parsing-end 1)))
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76 (if compilation-error-list
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77 nil
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78 (save-excursion
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79 (switch-to-buffer "*compilation*")
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80 (set-buffer-modified-p nil)
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81 (eif-ise-compilation-parse-errors)))
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82 (let ((next-error (car compilation-error-list)))
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83 (if (null next-error)
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84 (error (concat compilation-error-message
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85 (if (and compilation-process
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86 (eq (process-status compilation-process)
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87 'run))
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88 " yet" ""))))
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89 (setq compilation-error-list (cdr compilation-error-list))
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90 (if (null (car (cdr next-error)))
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91 nil
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92 (switch-to-buffer (marker-buffer (car (cdr next-error))))
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93 (goto-char (car (cdr next-error)))
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94 (set-marker (car (cdr next-error)) nil))
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95 (let* ((pop-up-windows t)
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96 (w (display-buffer (marker-buffer (car next-error)))))
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97 (set-window-point w (car next-error))
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98 (set-window-start w (car next-error)))
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99 (set-marker (car next-error) nil)))
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100
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101 (defun eif-ise-compilation-filename ()
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102 "Return a string which is the last filename from the compilation command.
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103 Ignore quotes around it. Return nil if no filename was given."
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104 ;; First arg of compile cmd should be filename
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105 (if (string-match "^.*[ \t]+\\([^ \t\"]+\\)" compile-command)
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106 (substring compile-command (match-beginning 1) (match-end 1))))
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107
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108 (defun eif-ise-compilation-parse-errors ()
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109 "Parse the current buffer as error messages.
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110 This makes a list of error descriptors, compilation-error-list. For each
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111 error line-number in the buffer, the source file is read in, and the text
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112 location is saved in compilation-error-list. The function next-error,
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113 assigned to \\[next-error], takes the next error off the list and visits its
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114 location."
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115 (setq compilation-error-list nil)
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116 (message "Parsing error messages...")
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117 (let (text-buffer
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118 last-filename last-linenum)
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119 ;; Don't reparse messages already seen at last parse.
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120 (goto-char compilation-parsing-end)
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121 ;; Don't parse the first two lines as error messages.
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122 ;; This matters for grep.
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123 (if (bobp)
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124 (forward-line 2))
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125 (let (class-name case-fold-search linenum filename error-marker text-marker)
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126 (while (re-search-forward compilation-error-regexp nil t)
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127 ;; Extract line number from error message.
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128 (setq linenum (string-to-int (buffer-substring
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129 (match-beginning 2)
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130 (match-end 2))))
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131 ;; Extract class name from error message and convert to the full
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132 ;; pathname of the class' source file.
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133 (setq class-name (downcase (buffer-substring (match-beginning 1) (match-end 1)))
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134 filename (br-class-path class-name))
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135 (if (null filename) ; No matching class name in lookup table.
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136 (progn
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137 (message "Rebuilding Eiffel system class locations table...")
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138 (sit-for 2)
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139 (call-interactively 'br-build-sys-classes-htable) ; Typically pretty fast
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140 (message "Rebuilding Eiffel system class locations table...Done")
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141 (setq filename (br-class-path class-name))
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142 (if (null filename)
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143 (error (format "'%s' not in lookup table, use {M-x br-build-paths-htable RTN} to update."
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144 class-name)))))
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145 ;; Locate the erring file and line.
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146 (if (and (equal filename last-filename)
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147 (= linenum last-linenum))
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148 nil
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149 (beginning-of-line 1)
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150 (setq error-marker (point-marker))
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151 ;; text-buffer gets the buffer containing this error's file.
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152 (if (not (equal filename last-filename))
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153 (setq text-buffer
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154 (and (file-exists-p (setq last-filename filename))
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155 (if (boundp 'br-find-file-noselect-function)
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156 (set-buffer
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157 (funcall br-find-file-noselect-function
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158 filename))
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159 (find-file-noselect filename)))
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160 last-linenum 0))
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161 (if text-buffer
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162 ;; Go to that buffer and find the erring line.
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163 (save-excursion
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164 (set-buffer text-buffer)
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165 (if (zerop last-linenum)
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166 (progn
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167 (goto-char 1)
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168 (setq last-linenum 1)))
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169 (forward-line (- linenum last-linenum))
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170 (setq last-linenum linenum)
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171 (setq text-marker (point-marker))
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172 (setq compilation-error-list
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173 (cons (list error-marker text-marker)
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174 compilation-error-list)))))
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175 (forward-line 1)))
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176 (setq compilation-parsing-end (point-max)))
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177 (message "Parsing error messages...done")
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178 (setq compilation-error-list (nreverse compilation-error-list)))
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179
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180
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181 ;;; The following version of 'eif-ec' courtesy of:
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182 ;;; Heinz W. Schmidt hws@icsi.berkeley.edu
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183 ;;; International Computer Science Institute (415) 643-9153 x175
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184 ;;; 1947 Center Street, Ste. 600 /\/\|;; CLOS saves time and
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185 ;;; Berkeley, CA 94704 \/\/|-- Eiffel is faster
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186 ;;; 2/11/90
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187 ;;; With a number of Bob Weiner's modifications
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188
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189 (defun str2argv (STR)
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190 (if (string-match "[^ ]" STR)
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191 (let ((arg1 (read-from-string STR)))
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192 (cons (prin1-to-string (car arg1))
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193 (str2argv (substring STR (cdr arg1)))))))
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194
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195 (defvar eif-ec-args "" "Default arguments to send to the Eiffel ec class compiler.")
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196
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197 (defun eif-ec (ARG &optional CMD DIR CLASS-NAME)
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198 "Calls Eiffel compiler. Compile with optional CMD, 'eif-compile-cmd' or \"ec\".
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199 By default, the compiler is called on the file associated with the current
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200 buffer. With numeric argument 0 prompts for explicit command line arguments.
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201 Other numeric arguments allow you to insert options or further class names."
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202 (interactive "P")
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203 (setq CLASS-NAME (or CLASS-NAME
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204 (let ((fn (file-name-nondirectory buffer-file-name)))
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205 (substring fn 0 (- (length fn) 2))))
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206 ec-dir (or DIR eif-compile-dir (file-name-directory buffer-file-name)))
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207 (let* ((ec-output (get-buffer-create "*compilation*"))
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208 (ec-process (get-buffer-process ec-output))
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209 (curr-buffer (current-buffer)))
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210 (if ec-process
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211 (if (y-or-n-p "Kill current Eiffel compilation process? ")
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212 (delete-process ec-process)
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213 (error "Can't ec concurrently.")))
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214 (if (and (buffer-modified-p)
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215 (y-or-n-p (format "Save file %s? " buffer-file-name)))
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216 (progn (save-buffer) (message "")))
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217 ;; Maybe prompt for args and dispatch according to numeric ARG.
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218 (setq eif-ec-args (if ARG (read-string "ec args: " eif-ec-args) ""))
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219 ;; Switch to shell buffer and run ec.
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220 (set-buffer ec-output)
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221 (erase-buffer)
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222 ;; Move to directory and trim classname so ec works in situations
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223 ;; like: ec -t class1 <CLASS-NAME>
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224 (cd ec-dir)
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225 (insert (or CMD eif-compile-cmd "ec")
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226 (if ARG (format " %s" eif-ec-args) "")
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227 (format " %s" (if (not (and ARG (zerop ARG))) CLASS-NAME ""))
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228 "\n")
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229 (set-buffer curr-buffer)
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230 (display-buffer ec-output)
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231 (eval
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232 (append '(start-process "ec" ec-output (or CMD eif-compile-cmd "ec"))
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233 (str2argv eif-ec-args)
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234 (if (not (and ARG (zerop ARG))) (list CLASS-NAME))))))
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235
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236 (defun eif-es (&optional dir)
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237 "Compile Eiffel system with es."
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238 (interactive)
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239 (eif-ec nil "es" dir ""))
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240
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241
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242 (provide 'eif-ise-er)
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