source: trunk/source/level-1/l1-init.lisp @ 15270

Last change on this file since 15270 was 15236, checked in by gb, 7 years ago

Change the initial-values *TERMINAL-CHARACTER-ENCODING-NAME* and
*DEFAULT-FILE-CHARACTER-ENCODING* to :UTF-8, mostly for the benefit of
the Init-File-Editing-Impaired. (I've resolved not to make fun of
the IFEI.) Note that this may require changes to startup scripts etc.

Define new conditions CCL:DECODING-PROBLEM and CCL:ENCODING-PROBLEM.
Signal these conditions (via SIGNAL) when decoding characters
from/enoding them to a stream, pointer or octet vector and a substitution
or replacement character would be used.

New macros (CCL:WITH-DECODING-PROBLEMS-AS-ERRORS &body body) and
(CCL:WITH-ENCODING-PROBLEMS-AS-ERRORS &body body) signal the corresponding
conditions as ERRORs if they are signaled during execution of the body.

(Arguably) fixes ticket:749.

FILE-STRING-LENGTH checks to see if the encoding wants to use a
byte-order-mark before subtracting the length of an encoded BOM
from the encoded string length if the file is at its beginning.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 12.1 KB
Line 
1;;;-*-Mode: LISP; Package: CCL -*-
2;;;
3;;;   Copyright (C) 2009 Clozure Associates
4;;;   Copyright (C) 1994-2001 Digitool, Inc
5;;;   This file is part of Clozure CL. 
6;;;
7;;;   Clozure CL is licensed under the terms of the Lisp Lesser GNU Public
8;;;   License , known as the LLGPL and distributed with Clozure CL as the
9;;;   file "LICENSE".  The LLGPL consists of a preamble and the LGPL,
10;;;   which is distributed with Clozure CL as the file "LGPL".  Where these
11;;;   conflict, the preamble takes precedence. 
12;;;
13;;;   Clozure CL is referenced in the preamble as the "LIBRARY."
14;;;
15;;;   The LLGPL is also available online at
16;;;   http://opensource.franz.com/preamble.html
17
18(in-package "CCL")
19
20(eval-when (:compile-toplevel :execute :load-toplevel)
21
22(defconstant most-positive-short-float (make-short-float-from-fixnums (1- (ash 1 23)) 254 0))
23(defconstant most-negative-short-float (make-short-float-from-fixnums (1- (ash 1 23)) 254 -1))
24(defconstant most-positive-single-float (make-short-float-from-fixnums (1- (ash 1 23)) 254 0))
25(defconstant most-negative-single-float (make-short-float-from-fixnums (1- (ash 1 23)) 254 -1))
26
27
28(defconstant least-positive-short-float (make-short-float-from-fixnums 1 0 0))
29(defconstant least-negative-short-float (make-short-float-from-fixnums 1 0 -1))
30(defconstant least-positive-single-float (make-short-float-from-fixnums 1 0 0))
31(defconstant least-negative-single-float (make-short-float-from-fixnums 1 0 -1))
32
33(defconstant short-float-epsilon (make-short-float-from-fixnums 1 103 0))
34(defconstant short-float-negative-epsilon (make-short-float-from-fixnums 1 102 0))
35(defconstant single-float-epsilon (make-short-float-from-fixnums 1 103 0))
36(defconstant single-float-negative-epsilon (make-short-float-from-fixnums 1 102 0))
37
38(defconstant least-positive-normalized-short-float (make-short-float-from-fixnums 1 1 0))
39(defconstant least-negative-normalized-short-float (make-short-float-from-fixnums 1 1 -1))
40(defconstant least-positive-normalized-single-float (make-short-float-from-fixnums 1 1 0))
41(defconstant least-negative-normalized-single-float (make-short-float-from-fixnums 1 1 -1))
42
43(let ((bigfloat (make-float-from-fixnums #x1ffffff #xfffffff #x7fe 0)))
44  ; do it this way if you want to be able to compile before reading floats works 
45  (defconstant most-positive-double-float bigfloat)
46  (defconstant most-positive-long-float bigfloat)
47  )
48
49(let ((littleposfloat (make-float-from-fixnums 0 1 0 0 )))
50  (defconstant least-positive-double-float littleposfloat)
51  (defconstant least-positive-long-float littleposfloat)
52  )
53
54(let ((littlenegfloat (make-float-from-fixnums 0 1 0 -1))) 
55  (defconstant least-negative-double-float littlenegfloat)
56  (defconstant least-negative-long-float littlenegfloat)
57  )
58
59(let ((bignegfloat (make-float-from-fixnums #x1ffffff #xfffffff #x7fe -1)))
60  (defconstant most-negative-double-float bignegfloat)
61  (defconstant most-negative-long-float bignegfloat)
62  )
63
64(let ((eps (make-float-from-fixnums #x1000000 1 #x3ca 0))) ;was wrong
65  (defconstant double-float-epsilon eps)
66  (defconstant long-float-epsilon eps)
67  )
68
69(let ((eps- (make-float-from-fixnums #x1000000 1 #x3c9 1)))
70  (defconstant double-float-negative-epsilon eps-)
71  (defconstant long-float-negative-epsilon eps-)
72  )
73
74(let ((norm (make-float-from-fixnums 0 0 1 0)))
75  (defconstant least-positive-normalized-double-float norm)
76  (defconstant least-positive-normalized-long-float norm)
77  )
78
79(let ((norm- (make-float-from-fixnums 0 0 1 -1)))
80  (defconstant least-negative-normalized-double-float norm-)
81  (defconstant least-negative-normalized-long-float norm-)
82  )
83
84(defconstant pi (make-float-from-fixnums #x921fb5 #x4442d18 #x400 0))
85
86)
87
88
89
90(defconstant boole-clr 0
91  "Boole function op, makes BOOLE return 0.")
92(defconstant boole-set 1
93  "Boole function op, makes BOOLE return -1.")
94(defconstant boole-1 2
95  "Boole function op, makes BOOLE return integer1.")
96(defconstant boole-2 3
97  "Boole function op, makes BOOLE return integer2.")
98(defconstant boole-c1 4
99  "Boole function op, makes BOOLE return complement of integer1.")
100(defconstant boole-c2 5
101  "Boole function op, makes BOOLE return complement of integer2.")
102(defconstant boole-and 6
103  "Boole function op, makes BOOLE return logand of integer1 and integer2.")
104(defconstant boole-ior 7
105  "Boole function op, makes BOOLE return logior of integer1 and integer2.")
106(defconstant boole-xor 8
107  "Boole function op, makes BOOLE return logxor of integer1 and integer2.")
108(defconstant boole-eqv 9
109  "Boole function op, makes BOOLE return logeqv of integer1 and integer2.")
110(defconstant boole-nand 10
111  "Boole function op, makes BOOLE return log nand of integer1 and integer2.")
112(defconstant boole-nor 11
113  "Boole function op, makes BOOLE return lognor of integer1 and integer2.")
114(defconstant boole-andc1 12
115  "Boole function op, makes BOOLE return logandc1 of integer1 and integer2.")
116(defconstant boole-andc2 13
117  "Boole function op, makes BOOLE return logandc2 of integer1 and integer2.")
118(defconstant boole-orc1 14
119  "Boole function op, makes BOOLE return logorc1 of integer1 and integer2.")
120(defconstant boole-orc2 15
121  "Boole function op, makes BOOLE return logorc2 of integer1 and integer2.")
122
123
124
125(defconstant internal-time-units-per-second #+64-bit-target 1000000 #-64-bit-target 1000
126  "The number of internal time units that fit into a second. See
127  GET-INTERNAL-REAL-TIME and GET-INTERNAL-RUN-TIME.")
128
129(defconstant char-code-limit #.(arch::target-char-code-limit
130                                (backend-target-arch *target-backend*))
131  "the upper exclusive bound on values produced by CHAR-CODE")
132
133(defconstant array-rank-limit (floor #x8000 target::node-size)
134  "the exclusive upper bound on the rank of an array")
135(defconstant multiple-values-limit 200
136  "The exclusive upper bound on the number of multiple VALUES that you can
137  return.")
138(defconstant lambda-parameters-limit (floor #x8000 target::node-size)
139  "The exclusive upper bound on the number of parameters which may be specifed
140  in a given lambda list. This is actually the limit on required and &OPTIONAL
141  parameters. With &KEY and &AUX you can get more.")
142(defconstant call-arguments-limit #+ppc-target (floor #x8000 target::node-size)
143                                  #-ppc-target #x10000
144  "The exclusive upper bound on the number of arguments which may be passed
145  to a function, including &REST args."
146)
147
148; Currently, vectors can be at most (expt 2 22) bytes, and
149; the largest element (double-float or long-float) is 8 bytes:
150#| to get largest element size...
151(apply #'max (mapcar #'(lambda (type)
152                         (%vect-byte-size (make-array 1 :element-type type)))
153                     *cl-types*))
154|#
155
156(defconstant array-dimension-limit array-total-size-limit
157  "the exclusive upper bound on any given dimension of an array")
158
159(defconstant most-positive-fixnum target::target-most-positive-fixnum
160  "the fixnum closest in value to positive infinity")
161(defconstant most-negative-fixnum target::target-most-negative-fixnum
162  "the fixnum closest in value to negative infinity")
163
164(defstatic *least-positive-bignum* (1+ target::target-most-positive-fixnum)
165  "used internally; value should be treated as a constant")
166
167
168(defconstant lambda-list-keywords 
169  '(&OPTIONAL &REST &AUX &KEY &ALLOW-OTHER-KEYS &BODY &ENVIRONMENT &WHOLE)
170  "symbols which are magical in a lambda list")
171
172(defstatic *type-system-initialized* nil)
173
174(defparameter %toplevel-catch% ':toplevel)
175
176
177
178(defparameter *warn-if-redefine-kernel* nil
179  "When true, attempts to redefine (via DEFUN or DEFMETHOD) functions and
180methods that are marked as being predefined signal continuable errors.")
181
182(defvar *next-screen-context-lines* 2 "Number of lines to show of old screen
183  after a scroll-up or scroll-down.")
184
185(defparameter *compiling-file* nil 
186  "Name of outermost file being compiled or NIL if not compiling a file.")
187
188(defvar *eval-fn-name* nil)
189
190
191(defvar *compile-definitions* t
192  "When non-NIL and the evaluator's lexical environment contains no
193  lexical entities, causes FUNCTION and NFUNCTION forms to be compiled.")
194#|
195(defvar *fast-eval* ()
196  "If non-nil, compile-and-call any forms which would be expensive to evaluate.")
197|#
198(defvar *declaration-handlers* ())
199
200
201(defvar *lisp-system-pointer-functions* nil)
202(defvar *lisp-user-pointer-functions* nil)
203(defvar *lisp-cleanup-functions* nil)   ; list of (0-arg) functions to call before quitting Lisp
204(defvar *lisp-startup-functions* nil)   ; list of funs to call after startup.
205(defvar %lisp-system-fixups% nil)
206
207
208(setf (*%saved-method-var%*) nil)
209
210; The GC expects these to be NIL or a function of no args
211(defvar *pre-gc-hook* nil)
212(defvar *post-gc-hook* nil)
213
214; These are used by add-gc-hook, delete-gc-hook
215(defvar *pre-gc-hook-list* nil)
216(defvar *post-gc-hook-list* nil)
217
218(defvar *backtrace-dialogs* nil)
219;(defvar *stepper-running* nil)
220(defparameter *last-mouse-down-time* 0)
221(defparameter *last-mouse-down-position* 0)
222
223(defvar %handlers% ())
224
225
226#|
227(defvar %restarts% (list (list (%cons-restart 'abort
228                                              #'(lambda (&rest ignore)
229                                                  (declare (ignore ignore))
230                                                  (throw :toplevel nil))
231                                              "Restart the toplevel loop."
232                                              nil
233                                              nil))))
234|#
235
236(defvar %restarts% nil)
237
238(defvar ccl::*kernel-restarts* nil)
239(defvar *condition-restarts* nil "explicit mapping between c & r")
240(declaim (list %handlers% %restarts% ccl::*kernel-restarts* *condition-restarts*))
241
242
243
244
245(defparameter *%periodic-tasks%* nil)
246(defparameter *dribble-stream* nil)
247
248(defconstant *keyword-package* *keyword-package*)
249(defconstant *common-lisp-package* *common-lisp-package*)
250(defconstant *ccl-package* *ccl-package*)
251
252(defparameter *load-print* nil "the default for the :PRINT argument to LOAD")
253(defparameter *loading-files* nil)
254(defparameter *break-level* 0)
255(defparameter *last-break-level* 0)
256(defparameter *warn-if-redefine* nil)
257(defvar *record-source-file*)           ; set in l1-utils.
258(defparameter *level-1-loaded* nil)     ; set t by l1-boot
259(defparameter *save-definitions* nil)
260(defparameter *save-local-symbols* t)
261(defparameter *save-source-locations* T
262  "Controls whether source location information is saved, both for definitions (names) and
263in function objects.
264
265If NIL we don't store any source locations (other than the filename if *record-source-file* is non-NIL).
266
267If T we store as much source location information as we have available.
268
269If :NO-TEXT we don't store a copy of the original source text.  This is a space optimization useful
270for compiling files that are not expected to change.")
271
272(defparameter *record-pc-mapping* t "True to record pc -> source mapping (but only if
273*save-source-locations* is also true)")
274
275(defvar *modules* nil
276  "This is a list of module names that have been loaded into Lisp so far.
277   The names are case sensitive strings.  It is used by PROVIDE and REQUIRE.")
278
279
280
281
282
283(defparameter *eof-value* (cons nil nil))
284
285(defvar *gc-event-status-bits*)         ; also initialized by kernel
286
287(defparameter *top-listener* nil)
288
289
290
291
292
293
294
295(defvar *listener-indent* nil)
296
297(defparameter *autoload-lisp-package* nil)   ; Make 'em suffer
298(defparameter *apropos-case-sensitive-p* nil)
299
300(defloadvar *total-gc-microseconds* (let* ((timeval-size
301                                            #.(%foreign-type-or-record-size
302                                               :timeval :bytes))
303                                           (p (malloc (* 5 timeval-size))))
304                                      (#_memset p 0 (* 5 timeval-size))
305                                      p))
306
307
308(defloadvar *total-bytes-freed* (let* ((p (malloc 8)))
309                                  (setf (%get-long p 0) 0
310                                        (%get-long p 4) 0)
311                                  p))
312
313
314
315(defvar *terminal-character-encoding-name* :utf-8
316  "NIL (implying :ISO-8859-1), or a keyword which names a defined
317character encoding to be used for *TERMINAL-IO* and other predefined
318initial streams.  The value of *TERMINAL-CHARACTER-ENCODING-NAME*
319persists across calls to SAVE-APPLICATION; it can be specified via
320the command-line argument --terminal-encoding (-K)")
321
322
323(defconstant +null-ptr+ (%null-ptr))
324
325;;; end of L1-init.lisp
326
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