From 15ff2a470eb4eb291d3a7271c08b130839828720 Mon Sep 17 00:00:00 2001 From: "C. McEnroe" Date: Tue, 11 Feb 2020 02:44:04 -0500 Subject: Remove legacy code --- edit.c | 186 ----------------------------------------------------------------- 1 file changed, 186 deletions(-) delete mode 100644 edit.c (limited to 'edit.c') diff --git a/edit.c b/edit.c deleted file mode 100644 index c63e4a2..0000000 --- a/edit.c +++ /dev/null @@ -1,186 +0,0 @@ -/* Copyright (C) 2018 C. McEnroe - * - * 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 . - */ - -#include -#include -#include -#include -#include -#include - -#include "chat.h" - -enum { BufLen = 512 }; -static struct { - wchar_t buf[BufLen]; - wchar_t *ptr; - wchar_t *end; - wchar_t *tab; -} line = { - .ptr = line.buf, - .end = line.buf, -}; - -const wchar_t *editHead(void) { - return line.buf; -} -const wchar_t *editTail(void) { - return line.ptr; -} - -static void left(void) { - if (line.ptr > line.buf) line.ptr--; -} -static void right(void) { - if (line.ptr < line.end) line.ptr++; -} - -static void backWord(void) { - left(); - wchar_t *word = wcsnrchr(line.buf, line.ptr - line.buf, L' '); - line.ptr = (word ? &word[1] : line.buf); -} -static void foreWord(void) { - right(); - wchar_t *word = wcsnchr(line.ptr, line.end - line.ptr, L' '); - line.ptr = (word ? word : line.end); -} - -static void insert(wchar_t ch) { - if (line.end == &line.buf[BufLen - 1]) return; - if (line.ptr != line.end) { - wmemmove(line.ptr + 1, line.ptr, line.end - line.ptr); - } - *line.ptr++ = ch; - line.end++; -} -static void backspace(void) { - if (line.ptr == line.buf) return; - if (line.ptr != line.end) { - wmemmove(line.ptr - 1, line.ptr, line.end - line.ptr); - } - line.ptr--; - line.end--; -} -static void delete(void) { - if (line.ptr == line.end) return; - right(); - backspace(); -} - -static void killBackWord(void) { - wchar_t *from = line.ptr; - backWord(); - wmemmove(line.ptr, from, line.end - from); - line.end -= from - line.ptr; -} -static void killForeWord(void) { - wchar_t *from = line.ptr; - foreWord(); - wmemmove(from, line.ptr, line.end - line.ptr); - line.end -= line.ptr - from; - line.ptr = from; -} - -static char *prefix; -static void complete(struct Tag tag) { - if (!line.tab) { - line.tab = wcsnrchr(line.buf, line.ptr - line.buf, L' '); - line.tab = (line.tab ? &line.tab[1] : line.buf); - prefix = awcsntombs(line.tab, line.ptr - line.tab); - if (!prefix) err(EX_DATAERR, "awcstombs"); - } - - const char *next = tabNext(tag, prefix); - if (!next) return; - - wchar_t *wcs = ambstowcs(next); - if (!wcs) err(EX_DATAERR, "ambstowcs"); - - size_t i = 0; - for (; wcs[i] && line.ptr > &line.tab[i]; ++i) { - line.tab[i] = wcs[i]; - } - while (line.ptr > &line.tab[i]) { - backspace(); - } - for (; wcs[i]; ++i) { - insert(wcs[i]); - } - free(wcs); - - size_t pos = line.tab - line.buf; - if (!pos && line.tab[0] != L'/') { - insert(L':'); - } else if (pos >= 2) { - if (line.buf[pos - 2] == L':') { - line.buf[pos - 2] = L','; - insert(L':'); - } - } - insert(L' '); -} - -static void accept(void) { - if (!line.tab) return; - line.tab = NULL; - free(prefix); - tabAccept(); -} -static void reject(void) { - if (!line.tab) return; - line.tab = NULL; - free(prefix); - tabReject(); -} - -static void enter(struct Tag tag) { - if (line.end == line.buf) return; - *line.end = L'\0'; - char *str = awcstombs(line.buf); - if (!str) err(EX_DATAERR, "awcstombs"); - input(tag, str); - free(str); - line.ptr = line.buf; - line.end = line.buf; -} - -void edit(struct Tag tag, enum Edit op, wchar_t ch) { - switch (op) { - break; case EditLeft: reject(); left(); - break; case EditRight: reject(); right(); - break; case EditHome: reject(); line.ptr = line.buf; - break; case EditEnd: reject(); line.ptr = line.end; - - break; case EditBackWord: reject(); backWord(); - break; case EditForeWord: reject(); foreWord(); - - break; case EditInsert: accept(); insert(ch); - break; case EditBackspace: reject(); backspace(); - break; case EditDelete: reject(); delete(); - - break; case EditKill: reject(); line.ptr = line.end = line.buf; - break; case EditKillBackWord: reject(); killBackWord(); - break; case EditKillForeWord: reject(); killForeWord(); - break; case EditKillEnd: reject(); line.end = line.ptr; - - break; case EditComplete: complete(tag); - - break; case EditEnter: accept(); enter(tag); - } - - *line.end = L'\0'; -} -- cgit 1.4.1