Mercurial > hg > xemacs-beta

comparison lisp/tooltalk/tooltalk-util.el @ 0:376386a54a3c r19-14

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
parents
children ec9a17fef872
comparison
equal deleted inserted replaced
-1:000000000000 0:376386a54a3c
1 ;;; -*- Mode: Emacs-Lisp -*-
2 ;;;
3 ;;; Emacs Tooltalk Utility Functions
4 ;;;
5 ;;; @(#)tooltalk-util.el 1.7 93/12/07
6
7
8 (defun initialize-tooltalk-message-arg (msg n mode value vtype)
9 "Initialize the Nth tooltalk message argument of MSG.
10 A new argument is created if necessary. No attempt to distinguish
11 between strings that contain binary data and ordinary strings is made;
12 all non integer argument values are converted to a string (if not a
13 string already) and loaded with tt_message_arg_val_set().
14 Applications that need to put binary data into a ToolTalk message
15 argument should initialize the argument with:
16
17 (set-tooltalk-message-attribute bin-string msg 'arg_bval arg-n)"
18 (let ((n-args-needed
19 (- (1+ n) (get-tooltalk-message-attribute msg 'args_count))))
20 (while (> n-args-needed 0)
21 (add-tooltalk-message-arg msg mode vtype)
22 (setq n-args-needed (1- n-args-needed))))
23
24 (cond
25 ((integerp value)
26 (set-tooltalk-message-attribute value msg 'arg_ival n))
27 ((stringp value)
28 (set-tooltalk-message-attribute value msg 'arg_val n))
29 (t
30 (error "The value specified for msg %s argument %d, %s, must be a string or an integer"
31 (prin1-to-string msg)
32 n
33 (prin1-to-string value)))))
34
35
36
37 (defconst tooltalk-arg-mode-ids
38 (list 'TT_IN 'TT_OUT 'TT_INOUT TT_IN TT_OUT TT_INOUT))
39
40 (defun initialize-tooltalk-message/pattern-args (initfn msg args)
41 "Apply INITFN to each the position mode value and type of
42 each argument in the list. The value of INITFN should be either
43 'initialize-tooltalk-message-arg or 'initialize-tooltalk-pattern-arg.
44 See `make-tooltalk-message' for a description of how arguments are specified.
45 We distinguish the short form for arguments, e.g. \"just-a-value\",
46 from the long form by checking to see if the argument is a list whose
47 car is one of the ToolTalk mode values like TT_INOUT."
48 (let ((n 0))
49 (while args
50 (let* ((arg (car args))
51 (long-form
52 (and (consp arg)
53 (member (car arg) tooltalk-arg-mode-ids)))
54 (mode
55 (if long-form (car arg) TT_IN))
56 (value
57 (cond
58 ((not long-form) arg)
59 ((cdr arg) (car (cdr arg)))
60 (t "")))
61 (type
62 (cond
63 ((and long-form
64 (cdr (cdr arg))
65 (stringp (car (cdr (cdr arg)))))
66 (car (cdr (cdr arg))))
67 ((integerp value) "int")
68 (t "string"))))
69 (funcall initfn msg n mode value type))
70 (setq args (cdr args))
71 (setq n (1+ n)))))
72
73
74 (defun initialize-tooltalk-message-attributes (msg attributes)
75 "Initialize the tooltalk message attributes. The value of
76 attributes must be a property list in the same form as for
77 make-tooltalk-message. This function can be used to reset
78 an existing message or to initailize a new one. See
79 initialize-tooltalk-message-args for a description of how
80 arguments are initialized."
81 (let ((args attributes)
82 (initfn 'initialize-tooltalk-message-arg))
83 (while (and args (cdr args))
84 (let ((indicator (car args))
85 (value (car (cdr args))))
86 (if (eq indicator 'args)
87 (initialize-tooltalk-message/pattern-args initfn msg value)
88 (set-tooltalk-message-attribute value msg indicator)))
89 (setq args (cdr (cdr args))))))
90
91
92 (defun make-tooltalk-message (attributes &optional no-callback)
93 "Create a tooltalk message and initialize its attributes.
94 The value of attributes must be a list of alternating keyword/values,
95 where keywords are symbols that name valid message attributes.
96 For example:
97
98 (make-tooltalk-message
99 '(class TT_NOTICE
100 scope TT_SESSION
101 address TT_PROCEDURE
102 op \"do-something\"
103 args (\"arg1\" 12345 (TT_INOUT \"arg3\" \"string\"))))
104
105 Values must always be strings, integers, or symbols that
106 represent Tooltalk constants. Attribute names are the same as
107 those supported by set-tooltalk-message-attribute, plus 'args.
108
109 The value of args should be a list of message arguments where
110 each message argument has the following form:
111
112 (mode [value [type]]) or just value
113
114 Where mode is one of TT_IN, TT_OUT, TT_INOUT and type is a string.
115 If type isn't specified then \"int\" is used if the value is a
116 number otherwise \"string\" is used. If only a value is specified
117 then mode defaults to TT_IN. If mode is TT_OUT then value and
118 type don't need to be specified. You can find out more about the
119 semantics and uses of ToolTalk message arguments in chapter 4 of the
120 Tooltalk Programmer's Guide.
121
122 The no-callback arg is a hack to prevent the registration of the
123 C-level callback. This hack is needed by the current SPARCworks
124 tool startup mechanism. Yuchho."
125 (let ((msg (create-tooltalk-message no-callback)))
126 (initialize-tooltalk-message-attributes msg attributes)
127 msg))
128
129
130 (defun describe-tooltalk-message (msg &optional stream)
131 "Print tooltalk message MSG's attributes and arguments to STREAM.
132 This is often useful for debugging."
133 (let ((attrs
134 '(address
135 class
136 disposition
137 file
138 gid
139 handler
140 handler_ptype
141 object
142 op
143 opnum
144 otype
145 scope
146 sender
147 sender_ptype
148 session
149 state
150 status
151 status_string
152 uid
153 callback)))
154 (terpri stream)
155 (while attrs
156 (princ (car attrs) stream)
157 (princ " " stream)
158 (prin1 (get-tooltalk-message-attribute msg (car attrs)) stream)
159 (terpri stream)
160 (setq attrs (cdr attrs))))
161
162 (let ((n (get-tooltalk-message-attribute msg 'args_count))
163 (i 0))
164 (while (< i n)
165 (princ "Argument " stream)
166 (princ i stream)
167 (princ " " stream)
168 (let ((type (get-tooltalk-message-attribute msg 'arg_type i)))
169 (princ
170 (prin1-to-string
171 (list
172 (get-tooltalk-message-attribute msg 'arg_mode i)
173 (if (equal type "int")
174 (get-tooltalk-message-attribute msg 'arg_ival i)
175 (get-tooltalk-message-attribute msg 'arg_val i))
176 type))
177 stream))
178 (terpri stream)
179 (setq i (1+ i)))))
180
181
182 (defun initialize-tooltalk-pattern-arg (pat n mode value vtype)
183 "Add one argument to tooltalk pattern PAT.
184 No support for specifying pattern arguments whose value is a vector
185 of binary data is provided."
186 (let ((converted-value
187 (if (or (integerp value) (stringp value))
188 value
189 (prin1-to-string value))))
190 (add-tooltalk-pattern-arg pat mode vtype converted-value)))
191
192
193 (defun initialize-tooltalk-pattern-attributes (pat attributes)
194 "Initialize tooltalk pattern PAT's attributes.
195 ATTRIBUTES must be a property list in the same form as for
196 `make-tooltalk-pattern'. The value of each attribute (except 'category)
197 can either be a single value or a list of values. If a list of
198 values is provided then the pattern will match messages with
199 a corresponding attribute that matches any member of the list.
200
201 This function can be used to add attribute values to an existing
202 pattern or to initiallize a new one. See
203 `initialize-tooltalk-message/pattern-args' for a description of how
204 arguments are initialized."
205 (let ((args attributes)
206 (initfn 'initialize-tooltalk-pattern-arg))
207 (while (and args (cdr args))
208 (let ((indicator (car args))
209 (value (car (cdr args))))
210 (cond
211 ((eq indicator 'args)
212 (initialize-tooltalk-message/pattern-args initfn pat value))
213 ((eq indicator 'plist)
214 (let ((values value))
215 (while values
216 (let ((prop (car values))
217 (propval (car (cdr values))))
218 (tooltalk-pattern-prop-set pat prop propval))
219 (setq values (cdr (cdr values))))))
220 ((consp value)
221 (let ((values value))
222 (while values
223 (add-tooltalk-pattern-attribute (car values) pat indicator)
224 (setq values (cdr values)))))
225 (t
226 (add-tooltalk-pattern-attribute value pat indicator))))
227 (setq args (cdr (cdr args))))))
228
229
230
231 (defun make-tooltalk-pattern (attributes)
232 "Create a tooltalk pattern and initialize its attributes.
233 The value of attributes must be a list of alternating keyword/values,
234 where keywords are symbols that name valid pattern attributes
235 or lists of valid attributes. For example:
236
237 (make-tooltalk-pattern
238 '(category TT_OBSERVE
239 scope TT_SESSION
240 op (\"operation1\" \"operation2\")
241 args (\"arg1\" 12345 (TT_INOUT \"arg3\" \"string\"))))
242
243
244 Values must always be strings, integers, or symbols that
245 represent Tooltalk constants or lists of same. When a list
246 of values is provided all of the list elements are added to
247 the attribute. In the example above, messages whose op
248 attribute is \"operation1\" or \"operation2\" would match the pattern.
249
250 The value of args should be a list of pattern arguments where
251 each pattern argument has the following form:
252
253 (mode [value [type]]) or just value
254
255 Where mode is one of TT_IN, TT_OUT, TT_INOUT and type is a string.
256 If type isn't specified then \"int\" is used if the value is a
257 number otherwise \"string\" is used. If only a value is specified
258 then mode defaults to TT_IN. If mode is TT_OUT then value and type
259 don't need to be specified. You can find out more about the semantics
260 and uses of ToolTalk pattern arguments in chapter 3 of the Tooltalk
261 Programmers Guide.
262 "
263 (let ((pat (create-tooltalk-pattern)))
264 (initialize-tooltalk-pattern-attributes pat attributes)
265 pat))
266
267
268