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(scm_char_upcase, scm_char_downcase, scm_upcase,

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scm_downcase): Use ctype.h toupper and tolower.  This will be useful
in 8-bit locales, and ensures consistency with char-upper-case? and
char-lower-case? which already use ctype.h.
(scm_upcase_table, scm_downcase_table, scm_lowers, scm_uppers): Remove.
(scm_tables_prehistory): Remove.
This commit is contained in:
Kevin Ryde 2004-04-24 23:24:48 +00:00
parent b49974ba3d
commit e5ef27ff9a
1 changed files with 8 additions and 28 deletions
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36
libguile/chars.c
View file

@ -1,4 +1,4 @@
/* Copyright (C) 1995,1996,1998, 2000, 2001 Free Software Foundation, Inc.
/* Copyright (C) 1995,1996,1998, 2000, 2001, 2004 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -43,6 +43,7 @@
#include <ctype.h>
#include <limits.h>
#include "libguile/_scm.h"
#include "libguile/validate.h"
@ -284,7 +285,7 @@ SCM_DEFINE (scm_char_upcase, "char-upcase", 1, 0, 0,
#define FUNC_NAME s_scm_char_upcase
{
SCM_VALIDATE_CHAR (1,chr);
return SCM_MAKE_CHAR(scm_upcase(SCM_CHAR(chr)));
return SCM_MAKE_CHAR(toupper(SCM_CHAR(chr)));
}
#undef FUNC_NAME
@ -295,39 +296,18 @@ SCM_DEFINE (scm_char_downcase, "char-downcase", 1, 0, 0,
#define FUNC_NAME s_scm_char_downcase
{
SCM_VALIDATE_CHAR (1,chr);
return SCM_MAKE_CHAR(scm_downcase(SCM_CHAR(chr)));
return SCM_MAKE_CHAR(tolower(SCM_CHAR(chr)));
}
#undef FUNC_NAME
static unsigned char scm_upcase_table[SCM_CHAR_CODE_LIMIT];
static unsigned char scm_downcase_table[SCM_CHAR_CODE_LIMIT];
static const unsigned char scm_lowers[] = "abcdefghijklmnopqrstuvwxyz";
static const unsigned char scm_uppers[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
void
scm_tables_prehistory ()
{
int i;
for (i = 0; i < SCM_CHAR_CODE_LIMIT; i++)
scm_upcase_table[i] = scm_downcase_table[i] = i;
for (i = 0; i < (int) (sizeof scm_lowers / sizeof (scm_lowers[0])); i++)
{
scm_upcase_table[scm_lowers[i]] = scm_uppers[i];
scm_downcase_table[scm_uppers[i]] = scm_lowers[i];
}
}
int
scm_upcase (unsigned int c)
{
if (c < sizeof (scm_upcase_table))
return scm_upcase_table[c];
if (c <= UCHAR_MAX)
return toupper (c);
else
return c;
}
@ -336,8 +316,8 @@ scm_upcase (unsigned int c)
int
scm_downcase (unsigned int c)
{
if (c < sizeof (scm_downcase_table))
return scm_downcase_table[c];
if (c <= UCHAR_MAX)
return tolower (c);
else
return c;
}