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