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Diffstat (limited to '')
| -rw-r--r-- | format.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/format.c b/format.c new file mode 100644 index 0000000..800388b --- /dev/null +++ b/format.c @@ -0,0 +1,89 @@ +/* Copyright (C) 2018 Curtis McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <wchar.h> +#include <stdlib.h> +#include <stdbool.h> + +#include "chat.h" + +void formatReset(struct Format *format) { + format->bold = false; + format->italic = false; + format->underline = false; + format->reverse = false; + format->fg = -1; + format->bg = -1; +} + +static void parseColor(struct Format *format) { + size_t len = MIN(wcsspn(format->str, L"0123456789"), 2); + if (!len) { + format->fg = -1; + format->bg = -1; + return; + } + format->fg = 0; + for (size_t i = 0; i < len; ++i) { + format->fg *= 10; + format->fg += format->str[i] - L'0'; + } + if (format->fg > IRCLightGray) format->fg = -1; + format->str = &format->str[len]; + + len = 0; + if (format->str[0] == L',') { + len = MIN(wcsspn(&format->str[1], L"0123456789"), 2); + } + if (!len) return; + format->bg = 0; + for (size_t i = 0; i < len; ++i) { + format->bg *= 10; + format->bg += format->str[1 + i] - L'0'; + } + if (format->bg > IRCLightGray) format->bg = -1; + format->str = &format->str[1 + len]; +} + +static const wchar_t Stops[] = { + L' ', + IRCBold, IRCColor, IRCReverse, IRCReset, IRCItalic, IRCUnderline, + L'\0', +}; + +bool formatParse(struct Format *format, const wchar_t *stop) { + format->str += format->len; + if (!format->str[0]) return false; + + switch (format->str[0]) { + break; case IRCBold: format->str++; format->bold ^= true; + break; case IRCItalic: format->str++; format->italic ^= true; + break; case IRCUnderline: format->str++; format->underline ^= true; + break; case IRCReverse: format->str++; format->reverse ^= true; + break; case IRCColor: format->str++; parseColor(format); + break; case IRCReset: format->str++; formatReset(format); + } + + if (format->str[0] == L' ') { + format->len = 1 + wcscspn(&format->str[1], Stops); + } else { + format->len = wcscspn(format->str, Stops); + } + if (stop && stop > format->str && stop < &format->str[format->len]) { + format->len = stop - format->str; + } + return true; +} |