Mercurial > hg > xemacs-beta
annotate src/number-gmp.c @ 4604:e0a8715fdb1f
Support new IGNORE-INVALID-SEQUENCESP argument, #'query-coding-region.
lisp/ChangeLog addition:
2009-02-07 Aidan Kehoe <kehoea@parhasard.net>
* coding.el (query-coding-clear-highlights):
Rename the BUFFER argument to BUFFER-OR-STRING, describe it as
possibly being a string in its documentation.
(default-query-coding-region):
Add a new IGNORE-INVALID-SEQUENCESP argument, document that this
function does not support it.
Bind case-fold-search to nil, we don't want this to influence what the
function thinks is encodable or not.
(query-coding-region):
Add a new IGNORE-INVALID-SEQUENCESP argument, document what it
does; reflect this new argument in the associated compiler macro.
(query-coding-string):
Add a new IGNORE-INVALID-SEQUENCESP argument, document what it
does. Support the HIGHLIGHT argument correctly.
* unicode.el (unicode-query-coding-region):
Add a new IGNORE-INVALID-SEQUENCESP argument, document what it
does, implement this. Document a potential problem.
Use #'query-coding-clear-highlights instead of reimplementing it
ourselves.
Remove some debugging messages.
* mule/arabic.el (iso-8859-6):
* mule/cyrillic.el (iso-8859-5):
* mule/greek.el (iso-8859-7):
* mule/hebrew.el (iso-8859-8):
* mule/latin.el (iso-8859-2):
* mule/latin.el (iso-8859-3):
* mule/latin.el (iso-8859-4):
* mule/latin.el (iso-8859-14):
* mule/latin.el (iso-8859-15):
* mule/latin.el (iso-8859-16):
* mule/latin.el (iso-8859-9):
* mule/latin.el (windows-1252):
* mule/mule-coding.el (iso-8859-1):
Avoid the assumption that characters not given an explicit mapping
in these coding systems map to the ISO 8859-1 characters
corresponding to the octets on disk; this makes it much more
reasonable to implement the IGNORE-INVALID-SEQUENCESP argument to
query-coding-region.
* mule/mule-cmds.el (set-language-info):
Correct the docstring.
* mule/mule-cmds.el (finish-set-language-environment):
Treat invalid Unicode sequences produced from
invalid-sequence-coding-system and corresponding to control
characters the same as control characters in redisplay.
* mule/mule-cmds.el:
Document that encode-coding-char is available in coding.el
* mule/mule-coding.el (make-8-bit-generate-helper):
Change to return the both the encode-program generated and the
relevant non-ASCII charset; update the docstring to reflect this.
* mule/mule-coding.el
(make-8-bit-generate-encode-program-and-skip-chars-strings):
Rename this function; have it return skip-chars-strings as well as
the encode program. Have these skip-chars-strings use ranges for
charsets, where possible.
* mule/mule-coding.el (make-8-bit-create-decode-encode-tables):
Revise this to allow people to specify explicitly characters that
should be undefined (= corresponding to keys in
unicode-error-default-translation-table), and treating unspecified
octets above #x7f as undefined by default.
* mule/mule-coding.el (8-bit-fixed-query-coding-region):
Add a new IGNORE-INVALID-SEQUENCESP argument, implement support
for it using the 8-bit-fixed-invalid-sequences-skip-chars coding
system property; remove some debugging messages.
* mule/mule-coding.el (make-8-bit-coding-system):
This function is dumped, autoloading it makes no sense.
Document what happens when characters above #x7f are not
specified, implement this.
* mule/vietnamese.el:
Correct spelling.
tests/ChangeLog addition:
2009-02-07 Aidan Kehoe <kehoea@parhasard.net>
* automated/query-coding-tests.el:
Add FAILING-CASE arguments to the Assert calls, making #'q-c-debug
mostly unnecessary. Remove #'q-c-debug.
Add new tests that use the IGNORE-INVALID-SEQUENCESP argument to
#'query-coding-region; rework the existing ones to respect it.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sat, 07 Feb 2009 17:13:37 +0000 |
| parents | ee35a8fdcfcd |
| children | 313c2cc696b9 |
| rev | line source |
|---|---|
| 1983 | 1 /* Numeric types for XEmacs using the GNU MP library. |
| 2 Copyright (C) 2004 Jerry James. | |
| 3 | |
| 4 This file is part of XEmacs. | |
| 5 | |
| 6 XEmacs is free software; you can redistribute it and/or modify it | |
| 7 under the terms of the GNU General Public License as published by the | |
| 8 Free Software Foundation; either version 2, or (at your option) any | |
| 9 later version. | |
| 10 | |
| 11 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
| 17 along with XEmacs; see the file COPYING. If not, write to | |
| 18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 19 Boston, MA 02111-1307, USA. */ | |
| 20 | |
| 21 /* Synched up with: Not in FSF. */ | |
| 22 | |
| 23 #include <config.h> | |
| 24 #include <limits.h> | |
| 25 #include <math.h> | |
| 26 #include "lisp.h" | |
| 1995 | 27 #include "sysproc.h" /* For qxe_getpid */ |
| 1983 | 28 |
| 29 static mpf_t float_print_min, float_print_max; | |
| 30 gmp_randstate_t random_state; | |
| 31 | |
| 32 CIbyte * | |
| 33 bigfloat_to_string(mpf_t f, int base) | |
| 34 { | |
| 35 mp_exp_t expt; | |
| 36 CIbyte *str = mpf_get_str (NULL, &expt, base, 0, f); | |
| 37 const int sign = mpf_sgn (f); | |
| 38 const int neg = (sign < 0) ? 1 : 0; | |
| 39 int len = strlen (str) + 1; /* Count the null terminator */ | |
| 40 | |
| 41 if (sign == 0 || (mpf_cmp (float_print_min, f) <= 0 && | |
| 42 mpf_cmp (f, float_print_max) <= 0)) | |
| 43 { | |
| 44 /* Move digits down to insert a radix point */ | |
| 45 if (expt <= 0) | |
| 46 { | |
| 47 /* We need room for a radix point and leading zeroes */ | |
| 48 const int space = -expt + 2; | |
| 49 XREALLOC_ARRAY (str, CIbyte, len + space); | |
| 50 memmove (&str[space + neg], &str[neg], len - neg); | |
| 51 memset (&str[neg], '0', space); | |
| 52 str[neg + 1] = '.'; | |
| 53 len += space; | |
| 54 } | |
| 55 else | |
| 56 { | |
| 57 /* We just need room for a radix point */ | |
| 58 XREALLOC_ARRAY (str, CIbyte, len + 1); | |
| 59 memmove (&str[expt + neg + 1], &str[expt + neg], len - (expt + neg)); | |
| 60 str[expt + neg] = '.'; | |
| 61 len++; | |
| 62 } | |
| 63 } | |
| 64 else | |
| 65 { | |
| 66 /* Computerized scientific notation */ | |
| 67 /* We need room for a radix point, format identifier, and exponent */ | |
| 68 const int space = (expt < 0) | |
| 2956 | 69 ? (int)(log ((double) (-expt)) / log ((double) base)) + 3 |
| 70 : (int)(log ((double) expt) / log ((double) base)) + 2; | |
| 1983 | 71 XREALLOC_ARRAY (str, CIbyte, len + space); |
| 72 memmove (&str[neg + 2], &str[neg + 1], len - neg); | |
| 73 str[len + 1] = 'l'; | |
| 74 sprintf (&str[len + 2], "%ld", expt); | |
| 75 } | |
| 76 return str; | |
| 77 } | |
| 78 | |
| 79 /* We need the next two functions since GNU MP insists on giving us an extra | |
| 80 parameter. */ | |
| 2286 | 81 static void *gmp_realloc (void *ptr, size_t UNUSED (old_size), size_t new_size) |
| 1983 | 82 { |
| 83 return xrealloc (ptr, new_size); | |
| 84 } | |
| 85 | |
| 2286 | 86 static void gmp_free (void *ptr, size_t UNUSED (size)) |
| 1983 | 87 { |
| 88 xfree (ptr, void *); | |
| 89 } | |
| 90 | |
| 91 void | |
| 92 init_number_gmp () | |
| 93 { | |
| 2367 | 94 mp_set_memory_functions ((void *(*) (size_t)) xmalloc, gmp_realloc, |
| 95 gmp_free); | |
| 1983 | 96 |
| 97 /* The smallest number that is printed without exponents */ | |
| 98 mpf_init_set_d (float_print_min, 0.001); | |
| 99 | |
| 100 /* The largest number that is printed without exponents */ | |
| 101 mpf_init_set_ui (float_print_max, 10000000UL); | |
| 102 | |
| 103 /* Prepare the bignum/bigfloat random number generator */ | |
| 104 gmp_randinit_default (random_state); | |
| 105 gmp_randseed_ui (random_state, qxe_getpid () + time (NULL)); | |
| 106 } |