b0bb458810
We still have that char vs byte dichotomy, but majority of string operations now use byte.
123 lines
3.7 KiB
C
123 lines
3.7 KiB
C
/*
|
|
* This file is part of the Micro Python project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2013, 2014 Damien P. George
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "misc.h"
|
|
#include "mpconfig.h"
|
|
|
|
// attribute flags
|
|
#define FL_PRINT (0x01)
|
|
#define FL_SPACE (0x02)
|
|
#define FL_DIGIT (0x04)
|
|
#define FL_ALPHA (0x08)
|
|
#define FL_UPPER (0x10)
|
|
#define FL_LOWER (0x20)
|
|
|
|
// shorthand character attributes
|
|
#define AT_PR (FL_PRINT)
|
|
#define AT_SP (FL_SPACE | FL_PRINT)
|
|
#define AT_DI (FL_DIGIT | FL_PRINT)
|
|
#define AT_AL (FL_ALPHA | FL_PRINT)
|
|
#define AT_UP (FL_UPPER | FL_ALPHA | FL_PRINT)
|
|
#define AT_LO (FL_LOWER | FL_ALPHA | FL_PRINT)
|
|
|
|
// table of attributes for ascii characters
|
|
STATIC const uint8_t attr[] = {
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, AT_SP, AT_SP, AT_SP, AT_SP, AT_SP, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
AT_SP, AT_PR, AT_PR, AT_PR, AT_PR, AT_PR, AT_PR, AT_PR,
|
|
AT_PR, AT_PR, AT_PR, AT_PR, AT_PR, AT_PR, AT_PR, AT_PR,
|
|
AT_DI, AT_DI, AT_DI, AT_DI, AT_DI, AT_DI, AT_DI, AT_DI,
|
|
AT_DI, AT_DI, AT_PR, AT_PR, AT_PR, AT_PR, AT_PR, AT_PR,
|
|
AT_PR, AT_UP, AT_UP, AT_UP, AT_UP, AT_UP, AT_UP, AT_UP,
|
|
AT_UP, AT_UP, AT_UP, AT_UP, AT_UP, AT_UP, AT_UP, AT_UP,
|
|
AT_UP, AT_UP, AT_UP, AT_UP, AT_UP, AT_UP, AT_UP, AT_UP,
|
|
AT_UP, AT_UP, AT_UP, AT_PR, AT_PR, AT_PR, AT_PR, AT_PR,
|
|
AT_PR, AT_LO, AT_LO, AT_LO, AT_LO, AT_LO, AT_LO, AT_LO,
|
|
AT_LO, AT_LO, AT_LO, AT_LO, AT_LO, AT_LO, AT_LO, AT_LO,
|
|
AT_LO, AT_LO, AT_LO, AT_LO, AT_LO, AT_LO, AT_LO, AT_LO,
|
|
AT_LO, AT_LO, AT_LO, AT_PR, AT_PR, AT_PR, AT_PR, 0
|
|
};
|
|
|
|
unichar utf8_get_char(const byte *s) {
|
|
return *s;
|
|
}
|
|
|
|
const byte *utf8_next_char(const byte *s) {
|
|
return s + 1;
|
|
}
|
|
|
|
bool unichar_isspace(unichar c) {
|
|
return c < 128 && (attr[c] & FL_SPACE) != 0;
|
|
}
|
|
|
|
bool unichar_isalpha(unichar c) {
|
|
return c < 128 && (attr[c] & FL_ALPHA) != 0;
|
|
}
|
|
|
|
bool unichar_isprint(unichar c) {
|
|
return c < 128 && (attr[c] & FL_PRINT) != 0;
|
|
}
|
|
|
|
bool unichar_isdigit(unichar c) {
|
|
return c < 128 && (attr[c] & FL_DIGIT) != 0;
|
|
}
|
|
|
|
bool unichar_isxdigit(unichar c) {
|
|
return unichar_isdigit(c) || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F');
|
|
}
|
|
|
|
/*
|
|
bool unichar_is_alpha_or_digit(unichar c) {
|
|
return c < 128 && (attr[c] & (FL_ALPHA | FL_DIGIT)) != 0;
|
|
}
|
|
*/
|
|
|
|
bool unichar_isupper(unichar c) {
|
|
return c < 128 && (attr[c] & FL_UPPER) != 0;
|
|
}
|
|
|
|
bool unichar_islower(unichar c) {
|
|
return c < 128 && (attr[c] & FL_LOWER) != 0;
|
|
}
|
|
|
|
unichar unichar_tolower(unichar c) {
|
|
if (unichar_isupper(c)) {
|
|
return c + 0x20;
|
|
}
|
|
return c;
|
|
}
|
|
|
|
unichar unichar_toupper(unichar c) {
|
|
if (unichar_islower(c)) {
|
|
return c - 0x20;
|
|
}
|
|
return c;
|
|
}
|