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date Mon, 13 Aug 2007 08:45:50 +0200
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1 ;;!emacs
2 ;;
3 ;; FILE: eif-ise-er.el
4 ;; SUMMARY: Parses ISE's Eiffel error messages; compiles Eiffel classes.
5 ;; USAGE: GNU Emacs Lisp Library
6 ;; KEYWORDS: oop, tools
7 ;;
8 ;; AUTHOR: Bob Weiner
9 ;; ORG: Motorola Inc.
10 ;;
11 ;; ORIG-DATE: 7-Dec-89 at 00:17:18
12 ;; LAST-MOD: 17-Apr-95 at 12:39:18 by Bob Weiner
13 ;;
14 ;; Copyright (C) 1989-1995 Free Software Foundation, Inc.
15 ;; See the file BR-COPY for license information.
16 ;;
17 ;; This file is part of the OO-Browser.
18 ;;
19 ;; DESCRIPTION:
20 ;;
21 ;; 'eif-ec' compiles an Eiffel class.
22 ;; 'eif-es' compiles an Eiffel system.
23 ;;
24 ;; Load this library and then invoke error parsing via {C-x `}.
25 ;; See the GNU Emacs Manual for an explanation of error parsing.
26 ;;
27 ;; 'eif-ise-next-error' bound to {C-x `} parses ISE Eiffel compiler
28 ;; error messages. As in:
29 ;;
30 ;; "my_class", 16: syntax error : Keyword 'expanded' may not be used as identifier
31 ;;
32 ;; Only handles compilation lines of the following form:
33 ;;
34 ;; <compiler> [<option> ... <option>] <pathname>
35 ;;
36 ;; Requires the 'br-class-path', 'br-build-sys-paths-htable', and
37 ;; 'br-build-paths-htable' functions from the OO-Browser 'br-lib' package.
38 ;; This is used to determine the full pathname for the source code of each
39 ;; class since ISE does not include any pathname information in its error
40 ;; messages.
41 ;;
42 ;;
43 ;; To reset the {C-x `} key to parse non-Eiffel error messages, use:
44 ;;
45 ;; {M-x load-lib RTN compile RTN}
46 ;;
47 ;; DESCRIP-END.
48
49 (require 'br-lib)
50 (require 'br-eif)
51 (require 'compile)
52
53 (global-set-key "\C-x`" 'eif-ise-next-error)
54 (and (boundp 'eiffel-mode-map) (define-key eiffel-mode-map "\C-c!" 'eif-ec))
55
56 (setq compilation-error-regexp "\"\\([^ \t]+\\)\", \\([0-9]+\\):.*")
57
58 (defconst eif-compile-dir nil
59 "Default directory in which to invoke an Eiffel compile command.")
60
61 (defconst eif-compile-cmd "ec"
62 "Default command name with which to invoke the Eiffel compiler.")
63
64 (defun eif-ise-next-error (&optional argp)
65 "Visit next compilation error message and corresponding source code.
66 This operates on the output from the \\[compile] command.
67 If all preparsed error messages have been processed,
68 the error message buffer is checked for new ones.
69 A non-nil argument (prefix arg, if interactive)
70 means reparse the error message buffer and start at the first error."
71 (interactive "P")
72 (if (or (eq compilation-error-list t)
73 argp)
74 (progn (compilation-forget-errors)
75 (setq compilation-parsing-end 1)))
76 (if compilation-error-list
77 nil
78 (save-excursion
79 (switch-to-buffer "*compilation*")
80 (set-buffer-modified-p nil)
81 (eif-ise-compilation-parse-errors)))
82 (let ((next-error (car compilation-error-list)))
83 (if (null next-error)
84 (error (concat compilation-error-message
85 (if (and compilation-process
86 (eq (process-status compilation-process)
87 'run))
88 " yet" ""))))
89 (setq compilation-error-list (cdr compilation-error-list))
90 (if (null (car (cdr next-error)))
91 nil
92 (switch-to-buffer (marker-buffer (car (cdr next-error))))
93 (goto-char (car (cdr next-error)))
94 (set-marker (car (cdr next-error)) nil))
95 (let* ((pop-up-windows t)
96 (w (display-buffer (marker-buffer (car next-error)))))
97 (set-window-point w (car next-error))
98 (set-window-start w (car next-error)))
99 (set-marker (car next-error) nil)))
100
101 (defun eif-ise-compilation-filename ()
102 "Return a string which is the last filename from the compilation command.
103 Ignore quotes around it. Return nil if no filename was given."
104 ;; First arg of compile cmd should be filename
105 (if (string-match "^.*[ \t]+\\([^ \t\"]+\\)" compile-command)
106 (substring compile-command (match-beginning 1) (match-end 1))))
107
108 (defun eif-ise-compilation-parse-errors ()
109 "Parse the current buffer as error messages.
110 This makes a list of error descriptors, compilation-error-list. For each
111 error line-number in the buffer, the source file is read in, and the text
112 location is saved in compilation-error-list. The function next-error,
113 assigned to \\[next-error], takes the next error off the list and visits its
114 location."
115 (setq compilation-error-list nil)
116 (message "Parsing error messages...")
117 (let (text-buffer
118 last-filename last-linenum)
119 ;; Don't reparse messages already seen at last parse.
120 (goto-char compilation-parsing-end)
121 ;; Don't parse the first two lines as error messages.
122 ;; This matters for grep.
123 (if (bobp)
124 (forward-line 2))
125 (let (class-name case-fold-search linenum filename error-marker text-marker)
126 (while (re-search-forward compilation-error-regexp nil t)
127 ;; Extract line number from error message.
128 (setq linenum (string-to-int (buffer-substring
129 (match-beginning 2)
130 (match-end 2))))
131 ;; Extract class name from error message and convert to the full
132 ;; pathname of the class' source file.
133 (setq class-name (downcase (buffer-substring (match-beginning 1) (match-end 1)))
134 filename (br-class-path class-name))
135 (if (null filename) ; No matching class name in lookup table.
136 (progn
137 (message "Rebuilding Eiffel system class locations table...")
138 (sit-for 2)
139 (call-interactively 'br-build-sys-classes-htable) ; Typically pretty fast
140 (message "Rebuilding Eiffel system class locations table...Done")
141 (setq filename (br-class-path class-name))
142 (if (null filename)
143 (error (format "'%s' not in lookup table, use {M-x br-build-paths-htable RTN} to update."
144 class-name)))))
145 ;; Locate the erring file and line.
146 (if (and (equal filename last-filename)
147 (= linenum last-linenum))
148 nil
149 (beginning-of-line 1)
150 (setq error-marker (point-marker))
151 ;; text-buffer gets the buffer containing this error's file.
152 (if (not (equal filename last-filename))
153 (setq text-buffer
154 (and (file-exists-p (setq last-filename filename))
155 (if (boundp 'br-find-file-noselect-function)
156 (set-buffer
157 (funcall br-find-file-noselect-function
158 filename))
159 (find-file-noselect filename)))
160 last-linenum 0))
161 (if text-buffer
162 ;; Go to that buffer and find the erring line.
163 (save-excursion
164 (set-buffer text-buffer)
165 (if (zerop last-linenum)
166 (progn
167 (goto-char 1)
168 (setq last-linenum 1)))
169 (forward-line (- linenum last-linenum))
170 (setq last-linenum linenum)
171 (setq text-marker (point-marker))
172 (setq compilation-error-list
173 (cons (list error-marker text-marker)
174 compilation-error-list)))))
175 (forward-line 1)))
176 (setq compilation-parsing-end (point-max)))
177 (message "Parsing error messages...done")
178 (setq compilation-error-list (nreverse compilation-error-list)))
179
180
181 ;;; The following version of 'eif-ec' courtesy of:
182 ;;; Heinz W. Schmidt hws@icsi.berkeley.edu
183 ;;; International Computer Science Institute (415) 643-9153 x175
184 ;;; 1947 Center Street, Ste. 600 /\/\|;; CLOS saves time and
185 ;;; Berkeley, CA 94704 \/\/|-- Eiffel is faster
186 ;;; 2/11/90
187 ;;; With a number of Bob Weiner's modifications
188
189 (defun str2argv (STR)
190 (if (string-match "[^ ]" STR)
191 (let ((arg1 (read-from-string STR)))
192 (cons (prin1-to-string (car arg1))
193 (str2argv (substring STR (cdr arg1)))))))
194
195 (defvar eif-ec-args "" "Default arguments to send to the Eiffel ec class compiler.")
196
197 (defun eif-ec (ARG &optional CMD DIR CLASS-NAME)
198 "Calls Eiffel compiler. Compile with optional CMD, 'eif-compile-cmd' or \"ec\".
199 By default, the compiler is called on the file associated with the current
200 buffer. With numeric argument 0 prompts for explicit command line arguments.
201 Other numeric arguments allow you to insert options or further class names."
202 (interactive "P")
203 (setq CLASS-NAME (or CLASS-NAME
204 (let ((fn (file-name-nondirectory buffer-file-name)))
205 (substring fn 0 (- (length fn) 2))))
206 ec-dir (or DIR eif-compile-dir (file-name-directory buffer-file-name)))
207 (let* ((ec-output (get-buffer-create "*compilation*"))
208 (ec-process (get-buffer-process ec-output))
209 (curr-buffer (current-buffer)))
210 (if ec-process
211 (if (y-or-n-p "Kill current Eiffel compilation process? ")
212 (delete-process ec-process)
213 (error "Can't ec concurrently.")))
214 (if (and (buffer-modified-p)
215 (y-or-n-p (format "Save file %s? " buffer-file-name)))
216 (progn (save-buffer) (message "")))
217 ;; Maybe prompt for args and dispatch according to numeric ARG.
218 (setq eif-ec-args (if ARG (read-string "ec args: " eif-ec-args) ""))
219 ;; Switch to shell buffer and run ec.
220 (set-buffer ec-output)
221 (erase-buffer)
222 ;; Move to directory and trim classname so ec works in situations
223 ;; like: ec -t class1 <CLASS-NAME>
224 (cd ec-dir)
225 (insert (or CMD eif-compile-cmd "ec")
226 (if ARG (format " %s" eif-ec-args) "")
227 (format " %s" (if (not (and ARG (zerop ARG))) CLASS-NAME ""))
228 "\n")
229 (set-buffer curr-buffer)
230 (display-buffer ec-output)
231 (eval
232 (append '(start-process "ec" ec-output (or CMD eif-compile-cmd "ec"))
233 (str2argv eif-ec-args)
234 (if (not (and ARG (zerop ARG))) (list CLASS-NAME))))))
235
236 (defun eif-es (&optional dir)
237 "Compile Eiffel system with es."
238 (interactive)
239 (eif-ec nil "es" dir ""))
240
241
242 (provide 'eif-ise-er)