1 ;;; code-process.el --- Process coding functions for XEmacs.
3 ;; Copyright (C) 1985-1987, 1993, 1994, 1997 Free Software Foundation, Inc.
4 ;; Copyright (C) 1995 Ben Wing
5 ;; Copyright (C) 1997 MORIOKA Tomohiko
9 ;; Maintainer: XEmacs Development Team
10 ;; Keywords: mule, multilingual, coding system, process
12 ;; This file is part of XEmacs.
14 ;; This file is very similar to code-process.el
16 ;; XEmacs is free software; you can redistribute it and/or modify it
17 ;; under the terms of the GNU General Public License as published by
18 ;; the Free Software Foundation; either version 2, or (at your option)
21 ;; XEmacs is distributed in the hope that it will be useful, but
22 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
23 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24 ;; General Public License for more details.
26 ;; You should have received a copy of the GNU General Public License
27 ;; along with XEmacs; see the file COPYING. If not, write to the Free
28 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
33 (defvar process-coding-system-alist nil
34 "Alist to decide a coding system to use for a process I/O operation.
35 The format is ((PATTERN . VAL) ...),
36 where PATTERN is a regular expression matching a program name,
37 VAL is a coding system, a cons of coding systems, or a function symbol.
38 If VAL is a coding system, it is used for both decoding what received
39 from the program and encoding what sent to the program.
40 If VAL is a cons of coding systems, the car part is used for decoding,
41 and the cdr part is used for encoding.
42 If VAL is a function symbol, the function must return a coding system
43 or a cons of coding systems which are used as above.")
45 (defun call-process (program &optional infile buffer displayp &rest args)
46 "Call PROGRAM synchronously in separate process.
47 The program's input comes from file INFILE (nil means `/dev/null').
48 Insert output in BUFFER before point; t means current buffer;
49 nil for BUFFER means discard it; 0 means discard and don't wait.
50 BUFFER can also have the form (REAL-BUFFER STDERR-FILE); in that case,
51 REAL-BUFFER says what to do with standard output, as above,
52 while STDERR-FILE says what to do with standard error in the child.
53 STDERR-FILE may be nil (discard standard error output),
54 t (mix it with ordinary output), or a file name string.
56 Fourth arg DISPLAYP non-nil means redisplay buffer as output is inserted.
57 Remaining arguments are strings passed as command arguments to PROGRAM.
59 If BUFFER is 0, `call-process' returns immediately with value nil.
60 Otherwise it waits for PROGRAM to terminate and returns a numeric exit status
61 or a signal description string.
62 If you quit, the process is killed with SIGINT, or SIGKILL if you
64 (let* ((coding-system-for-read
65 (or coding-system-for-read
68 (let ((alist process-coding-system-alist)
69 (case-fold-search (eq system-type 'vax-vms)))
71 (if (string-match (car (car alist)) program)
72 (throw 'found (setq ret (cdr (car alist))))
74 (setq alist (cdr alist))
77 (setq ret (funcall ret 'call-process program))
79 (cond ((consp ret) (car ret))
80 ((not ret) 'undecided)
81 ((find-coding-system ret) ret)
84 (apply 'call-process-internal program infile buffer displayp args)
87 (defun call-process-region (start end program
88 &optional deletep buffer displayp
90 "Send text from START to END to a synchronous process running PROGRAM.
91 Delete the text if fourth arg DELETEP is non-nil.
93 Insert output in BUFFER before point; t means current buffer;
94 nil for BUFFER means discard it; 0 means discard and don't wait.
95 BUFFER can also have the form (REAL-BUFFER STDERR-FILE); in that case,
96 REAL-BUFFER says what to do with standard output, as above,
97 while STDERR-FILE says what to do with standard error in the child.
98 STDERR-FILE may be nil (discard standard error output),
99 t (mix it with ordinary output), or a file name string.
101 Sixth arg DISPLAYP non-nil means redisplay buffer as output is inserted.
102 Remaining args are passed to PROGRAM at startup as command args.
104 If BUFFER is 0, returns immediately with value nil.
105 Otherwise waits for PROGRAM to terminate
106 and returns a numeric exit status or a signal description string.
107 If you quit, the process is first killed with SIGINT, then with SIGKILL if
108 you quit again before the process exits."
109 (let ((temp (cond ((eq system-type 'vax-vms)
110 (make-temp-name "tmp:emacs"))
111 ((or (eq system-type 'ms-dos)
112 (eq system-type 'windows-nt))
114 (concat (file-name-as-directory
119 (concat (file-name-as-directory
126 (let ((alist process-coding-system-alist)
127 (case-fold-search (eq system-type 'vax-vms)))
129 (if (string-match (car (car alist)) program)
130 (throw 'found (setq ret (cdr (car alist)))))
131 (setq alist (cdr alist))
134 (setq ret (funcall ret 'call-process-region program)))
138 ((find-coding-system ret)
141 (let ((coding-system-for-read
142 (or coding-system-for-read cs-r))
143 (coding-system-for-write
144 (or coding-system-for-write cs-w)))
145 (if (or (eq system-type 'ms-dos)
146 (eq system-type 'windows-nt))
147 (let ((buffer-file-type binary-process-output))
148 (write-region start end temp nil 'silent))
149 (write-region start end temp nil 'silent))
150 (if deletep (delete-region start end))
151 (apply #'call-process program temp buffer displayp args)))
156 (defun start-process (name buffer program &rest program-args)
157 "Start a program in a subprocess. Return the process object for it.
158 Args are NAME BUFFER PROGRAM &rest PROGRAM-ARGS
159 NAME is name for process. It is modified if necessary to make it unique.
160 BUFFER is the buffer or (buffer-name) to associate with the process.
161 Process output goes at end of that buffer, unless you specify
162 an output stream or filter function to handle the output.
163 BUFFER may be also nil, meaning that this process is not associated
165 Third arg is program file name. It is searched for as in the shell.
166 Remaining arguments are strings to give program as arguments.
167 INCODE and OUTCODE specify the coding-system objects used in input/output
168 from/to the process."
172 (let ((alist process-coding-system-alist)
173 (case-fold-search (eq system-type 'vax-vms)))
175 (if (string-match (car (car alist)) program)
176 (throw 'found (setq ret (cdr (car alist)))))
177 (setq alist (cdr alist))
180 (setq ret (funcall ret 'start-process program)))
184 ((find-coding-system ret)
187 (let ((coding-system-for-read
188 (or coding-system-for-read cs-r 'undecided))
189 (coding-system-for-write
190 (or coding-system-for-write cs-w)))
191 (apply 'start-process-internal name buffer program program-args)
194 (defvar network-coding-system-alist nil
195 "Alist to decide a coding system to use for a network I/O operation.
196 The format is ((PATTERN . VAL) ...),
197 where PATTERN is a regular expression matching a network service name
198 or is a port number to connect to,
199 VAL is a coding system, a cons of coding systems, or a function symbol.
200 If VAL is a coding system, it is used for both decoding what received
201 from the network stream and encoding what sent to the network stream.
202 If VAL is a cons of coding systems, the car part is used for decoding,
203 and the cdr part is used for encoding.
204 If VAL is a function symbol, the function must return a coding system
205 or a cons of coding systems which are used as above.
207 See also the function `find-operation-coding-system'.")
209 (defun open-network-stream (name buffer host service)
210 "Open a TCP connection for a service to a host.
211 Returns a subprocess-object to represent the connection.
212 Input and output work as for subprocesses; `delete-process' closes it.
213 Args are NAME BUFFER HOST SERVICE.
214 NAME is name for process. It is modified if necessary to make it unique.
215 BUFFER is the buffer (or buffer-name) to associate with the process.
216 Process output goes at end of that buffer, unless you specify
217 an output stream or filter function to handle the output.
218 BUFFER may be also nil, meaning that this process is not associated
220 Third arg is name of the host to connect to, or its IP address.
221 Fourth arg SERVICE is name of the service desired, or an integer
222 specifying a port number to connect to."
226 (let ((alist network-coding-system-alist)
227 (case-fold-search (eq system-type 'vax-vms))
230 (setq pattern (car (car alist)))
232 (cond ((numberp pattern)
233 (and (numberp service)
234 (eq pattern service)))
236 (or (and (stringp service)
237 (string-match pattern service))
238 (and (numberp service)
239 (string-match pattern
240 (number-to-string service))))))
241 (throw 'found (setq ret (cdr (car alist)))))
242 (setq alist (cdr alist))
245 (setq ret (funcall ret 'open-network-stream service)))
249 ((find-coding-system ret)
252 (let ((coding-system-for-read
253 (or coding-system-for-read cs-r))
254 (coding-system-for-write
255 (or coding-system-for-write cs-w)))
256 (open-network-stream-internal name buffer host service))))
258 ;;; mule-process.el ends here