109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
/*
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* This file is part of uIRC. (https://git.redxen.eu/caskd/uIRC)
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* Copyright (c) 2019-2021 Alex-David Denes
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*
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* uIRC is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* uIRC is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with uIRC. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "uirc/mode.h"
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#include <assert.h> // assert()
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#include <ctype.h> // isalpha()
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#include <inttypes.h> // int_least8_t
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#include <stdbool.h> // bool
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#include <stddef.h> // ptrdiff_t
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#if ('b' - 'a' != 1 || 'B' - 'A' != 1 || 'z' - 'a' != 25)
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#error "System is not US-ASCII." // This is crucial for the conversions below
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#endif
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static const char mode_maps[] = {
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[IRC_MODE_WALLOPS] = 'w', [IRC_MODE_INVISIBLE] = 'i', [IRC_MODE_AWAY] = 'a', [IRC_MODE_RESTRICTED] = 'r',
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[IRC_MODE_OPERATOR] = 'o', [IRC_MODE_LOCALOPERATOR] = 'O', [IRC_MODE_SERVERNOTICES] = 's',
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};
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char
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IRC_MODE(enum uirc_table_mode mode)
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{
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return mode_maps[mode];
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}
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static int_least8_t
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uirc_mode_index(char mode)
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{
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int_least8_t index = 0;
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if (islower(mode)) {
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index += mode - 'a';
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} else if (isupper(mode)) {
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index += ('z' - 'a'); // We offset the index by the size of the lower characters
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index += mode - 'A';
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} else
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return -1;
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return index;
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}
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bool
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uirc_mode_toggle(char m, IRC_Modes ms)
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{
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int_least8_t i = uirc_mode_index(m);
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if (i < 0) return false;
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ms[i] = !ms[i];
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return true;
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}
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bool
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uirc_mode_enable(char m, IRC_Modes ms)
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{
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int_least8_t i = uirc_mode_index(m);
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if (i < 0) return false;
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ms[i] = true;
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return true;
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}
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bool
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uirc_mode_disable(char m, IRC_Modes ms)
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{
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int_least8_t i = uirc_mode_index(m);
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if (i < 0) return false;
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ms[i] = false;
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return true;
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}
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void
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uirc_mode_copy(IRC_Modes d, IRC_Modes const s)
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{
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for (unsigned long i = 0; i < sizeof(IRC_Modes) / sizeof(*s); i++) d[i] = s[i];
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}
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bool
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uirc_mode_fetch(char m, IRC_Modes ms)
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{
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int_least8_t i = uirc_mode_index(m);
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assert(i != -1);
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return ms[i];
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}
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const char*
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uirc_mode_bmconv(IRC_Modes ms)
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{
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static char bitmask[4];
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unsigned short i = sizeof(bitmask) - 1;
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bitmask[i--] = '\0';
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bitmask[i--] = '0';
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bitmask[i--] = (uirc_mode_fetch(IRC_MODE_WALLOPS, ms)) ? '1' : '0';
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bitmask[i--] = (uirc_mode_fetch(IRC_MODE_INVISIBLE, ms)) ? '1' : '0';
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return bitmask;
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}
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