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-rw-r--r--test/combine.c313
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+/****************************************************************************
+ * Copyright 2021,2022 Thomas E. Dickey *
+ * *
+ * 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, distribute with modifications, 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 ABOVE 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. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+/*
+ * $Id: combine.c,v 1.23 2022/12/10 22:28:50 tom Exp $
+ */
+
+#include <test.priv.h>
+
+#if USE_WIDEC_SUPPORT
+
+#include <wctype.h>
+#include <dump_window.h>
+#include <popup_msg.h>
+
+static int c_opt;
+static int r_opt;
+
+static int
+next_char(int value)
+{
+ do {
+ ++value;
+ } while (!iswprint((wint_t) value));
+ return value;
+}
+
+static int
+prev_char(int value)
+{
+ do {
+ --value;
+ } while (!iswprint((wint_t) value));
+ return value;
+}
+
+static void
+do_row(int row, int base_ch, int over_ch)
+{
+ int col = 0;
+ bool done = FALSE;
+ bool reverse = (r_opt && !(row % 2));
+
+ move(row, col);
+ printw("[U+%04X]", over_ch);
+ do {
+ if (c_opt) {
+ wchar_t source[2];
+ cchar_t target;
+ attr_t attr = reverse ? A_REVERSE : A_NORMAL;
+
+ source[1] = 0;
+
+ source[0] = (wchar_t) base_ch;
+ setcchar(&target, source, attr, 0, NULL);
+ add_wch(&target);
+
+ source[0] = (wchar_t) over_ch;
+ setcchar(&target, source, attr, 0, NULL);
+ add_wch(&target);
+ } else {
+ wchar_t data[3];
+
+ data[0] = (wchar_t) base_ch;
+ data[1] = (wchar_t) over_ch;
+ data[2] = 0;
+ if (reverse)
+ attr_on(A_REVERSE, NULL);
+ addwstr(data);
+ if (reverse)
+ attr_off(A_REVERSE, NULL);
+ }
+ col = getcurx(stdscr);
+ base_ch = next_char(base_ch);
+ done = (col + 1 >= COLS);
+ } while (!done);
+}
+
+#define LAST_OVER 0x6f
+
+static int
+next_over(int value)
+{
+ if (++value > LAST_OVER)
+ value = 0;
+ return value;
+}
+
+static int
+prev_over(int value)
+{
+ if (--value < 0)
+ value = LAST_OVER;
+ return value;
+}
+
+static void
+do_all(int left_at, int over_it)
+{
+ int row;
+
+ for (row = 0; row < LINES; ++row) {
+ do_row(row, left_at, 0x300 + over_it);
+ over_it = next_over(over_it);
+ }
+}
+
+static void
+show_help(WINDOW *current)
+{
+ /* *INDENT-OFF* */
+ static struct {
+ int key;
+ CONST_FMT char * msg;
+ } help[] = {
+ { HELP_KEY_1, "Show this screen" },
+ { CTRL('L'), "Repaint screen" },
+ { '$', "Scroll to end of combining-character range" },
+ { '+', "Scroll to next combining-character in range" },
+ { KEY_DOWN, "(same as \"+\")" },
+ { '-', "Scroll to previous combining-character in range" },
+ { KEY_UP, "(same as \"-\")" },
+ { '0', "Scroll to beginning of combining-character range" },
+ { 'c', "Toggle command-line option \"-c\"" },
+ { 'd', "Dump screen using scr_dump unless \"-l\" option used" },
+ { 'h', "Scroll test-data left one column" },
+ { 'j', "Scroll test-data down one row" },
+ { 'k', "Scroll test-data up one row" },
+ { 'l', "Scroll test-data right one column" },
+ { 'q', "Quit" },
+ { ESCAPE, "(same as \"q\")" },
+ { QUIT, "(same as \"q\")" },
+ { 'r', "Toggle command-line option \"-r\"" },
+ };
+ /* *INDENT-ON* */
+
+ char **msgs = typeCalloc(char *, SIZEOF(help) + 3);
+ size_t s;
+ int d = 0;
+
+ msgs[d++] = strdup("Test diacritic combining-characters range "
+ "U+0300..U+036F");
+ msgs[d++] = strdup("");
+ for (s = 0; s < SIZEOF(help); ++s) {
+ char *name = strdup(keyname(help[s].key));
+ size_t need = (11 + strlen(name) + strlen(help[s].msg));
+ msgs[d] = typeMalloc(char, need);
+ _nc_SPRINTF(msgs[d], _nc_SLIMIT(need) "%-10s%s", name, help[s].msg);
+ free(name);
+ ++d;
+ }
+ popup_msg2(current, msgs);
+ for (s = 0; msgs[s] != 0; ++s) {
+ free(msgs[s]);
+ }
+ free(msgs);
+}
+
+static void
+usage(int ok)
+{
+ static const char *msg[] =
+ {
+ "Usage: combine [options]"
+ ,""
+ ,USAGE_COMMON
+ ,"Demonstrate combining-characters."
+ ,""
+ ,"Options:"
+ ," -c use cchar_t data rather than wchar_t string"
+ ," -l FILE log window-dumps to this file"
+ ," -r draw even-numbered rows in reverse-video"
+ };
+ unsigned n;
+ for (n = 0; n < SIZEOF(msg); ++n) {
+ fprintf(stderr, "%s\n", msg[n]);
+ }
+ ExitProgram(ok ? EXIT_SUCCESS : EXIT_FAILURE);
+}
+/* *INDENT-OFF* */
+VERSION_COMMON()
+/* *INDENT-ON* */
+
+int
+main(int argc, char *argv[])
+{
+ int ch;
+ int left_at = ' ';
+ int over_it = 0;
+ bool done = FALSE;
+ bool log_option = FALSE;
+ const char *dump_log = "combine.log";
+
+ while ((ch = getopt(argc, argv, OPTS_COMMON "cl:r")) != -1) {
+ switch (ch) {
+ case 'c':
+ c_opt = TRUE;
+ break;
+ case 'l':
+ log_option = TRUE;
+ if (!open_dump(optarg))
+ usage(FALSE);
+ break;
+ case 'r':
+ r_opt = TRUE;
+ break;
+ case OPTS_VERSION:
+ show_version(argv);
+ ExitProgram(EXIT_SUCCESS);
+ default:
+ usage(ch == OPTS_USAGE);
+ /* NOTREACHED */
+ }
+ }
+
+ setlocale(LC_ALL, "");
+ initscr();
+ cbreak();
+ noecho();
+ keypad(stdscr, TRUE);
+
+ do {
+ do_all(left_at, over_it);
+ switch (getch()) {
+ case HELP_KEY_1:
+ show_help(stdscr);
+ break;
+ case 'q':
+ case QUIT:
+ case ESCAPE:
+ done = TRUE;
+ break;
+ case CTRL('L'):
+ redrawwin(stdscr);
+ break;
+ case 'd':
+ if (log_option)
+ dump_window(stdscr);
+#if HAVE_SCR_DUMP
+ else
+ scr_dump(dump_log);
+#endif
+ break;
+ case 'h':
+ if (left_at > ' ')
+ left_at = prev_char(left_at);
+ break;
+ case 'l':
+ left_at = next_char(left_at);
+ break;
+ case 'c':
+ c_opt = !c_opt;
+ break;
+ case 'r':
+ r_opt = !r_opt;
+ break;
+ case KEY_HOME:
+ case '0':
+ over_it = 0;
+ break;
+ case KEY_END:
+ case '$':
+ over_it = LAST_OVER;
+ break;
+ case KEY_UP:
+ case 'k':
+ case '-':
+ over_it = prev_over(over_it);
+ break;
+ case KEY_DOWN:
+ case 'j':
+ case '+':
+ over_it = next_over(over_it);
+ break;
+ }
+ } while (!done);
+
+ endwin();
+
+ ExitProgram(EXIT_SUCCESS);
+}
+#else
+int
+main(void)
+{
+ printf("This program requires wide-curses functions\n");
+ ExitProgram(EXIT_FAILURE);
+}
+#endif
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