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/*
* $Id: test_instr.c,v 1.4 2007/07/21 19:38:04 tom Exp $
*
* Author: Thomas E Dickey
*
* Demonstrate the instr functions from the curses library.
int instr(char *str);
int innstr(char *str, int n);
int winstr(WINDOW *win, char *str);
int winnstr(WINDOW *win, char *str, int n);
int mvinstr(int y, int x, char *str);
int mvinnstr(int y, int x, char *str, int n);
int mvwinstr(WINDOW *win, int y, int x, char *str);
int mvwinnstr(WINDOW *win, int y, int x, char *str, int n);
*/
#include <test.priv.h>
#define BASE_Y 6
#define MAX_COLS 1024
static bool
Quit(int ch)
{
return (ch == ERR || ch == 'q' || ch == QUIT || ch == ESCAPE);
}
static void
show_1st(WINDOW *win, int line, char *buffer)
{
mvwaddstr(win, line, 5, buffer);
}
static void
showmore(WINDOW *win, int line, char *buffer)
{
wmove(win, line, 0);
wclrtoeol(win);
show_1st(win, line, buffer);
}
static int
test_inchs(int level, char **argv, WINDOW *chrwin, WINDOW *strwin)
{
WINDOW *txtbox = 0;
WINDOW *txtwin = 0;
FILE *fp;
int ch;
int txt_x = 0, txt_y = 0;
int base_y;
int limit = getmaxx(strwin) - 5;
char buffer[MAX_COLS];
if (argv[level] == 0) {
beep();
return FALSE;
}
if (level > 1) {
txtbox = newwin(LINES - BASE_Y, COLS - level, BASE_Y, level);
box(txtbox, 0, 0);
wnoutrefresh(txtbox);
txtwin = derwin(txtbox,
getmaxy(txtbox) - 2,
getmaxx(txtbox) - 2,
1, 1);
base_y = 0;
} else {
txtwin = stdscr;
base_y = BASE_Y;
}
keypad(txtwin, TRUE); /* enable keyboard mapping */
(void) cbreak(); /* take input chars one at a time, no wait for \n */
(void) noecho(); /* don't echo input */
txt_y = base_y;
txt_x = 0;
wmove(txtwin, txt_y, txt_x);
if ((fp = fopen(argv[level], "r")) != 0) {
while ((ch = fgetc(fp)) != EOF) {
if (waddch(txtwin, UChar(ch)) != OK) {
break;
}
}
fclose(fp);
} else {
wprintw(txtwin, "Cannot open:\n%s", argv[1]);
}
while (!Quit(ch = mvwgetch(txtwin, txt_y, txt_x))) {
switch (ch) {
case KEY_DOWN:
case 'j':
if (txt_y < getmaxy(txtwin) - 1)
txt_y++;
else
beep();
break;
case KEY_UP:
case 'k':
if (txt_y > base_y)
txt_y--;
else
beep();
break;
case KEY_LEFT:
case 'h':
if (txt_x > 0)
txt_x--;
else
beep();
break;
case KEY_RIGHT:
case 'l':
if (txt_x < getmaxx(txtwin) - 1)
txt_x++;
else
beep();
break;
case 'w':
test_inchs(level + 1, argv, chrwin, strwin);
if (txtbox != 0) {
touchwin(txtbox);
wnoutrefresh(txtbox);
} else {
touchwin(txtwin);
wnoutrefresh(txtwin);
}
break;
case '-':
if (limit > 0) {
--limit;
} else {
beep();
}
break;
case '+':
++limit;
break;
default:
beep();
break;
}
mvwprintw(chrwin, 0, 0, "line:");
wclrtoeol(chrwin);
if (txtwin != stdscr) {
wmove(txtwin, txt_y, txt_x);
if (winstr(txtwin, buffer) != ERR) {
show_1st(chrwin, 0, buffer);
}
if (mvwinstr(txtwin, txt_y, txt_x, buffer) != ERR) {
showmore(chrwin, 1, buffer);
}
} else {
move(txt_y, txt_x);
if (instr(buffer) != ERR) {
show_1st(chrwin, 0, buffer);
}
if (mvinstr(txt_y, txt_x, buffer) != ERR) {
showmore(chrwin, 1, buffer);
}
}
wnoutrefresh(chrwin);
mvwprintw(strwin, 0, 0, "%4d:", limit);
wclrtobot(strwin);
if (txtwin != stdscr) {
wmove(txtwin, txt_y, txt_x);
if (winnstr(txtwin, buffer, limit) != ERR) {
show_1st(strwin, 0, buffer);
}
if (mvwinnstr(txtwin, txt_y, txt_x, buffer, limit) != ERR) {
showmore(strwin, 1, buffer);
}
} else {
move(txt_y, txt_x);
if (innstr(buffer, limit) != ERR) {
show_1st(strwin, 0, buffer);
}
if (mvinnstr(txt_y, txt_x, buffer, limit) != ERR) {
showmore(strwin, 1, buffer);
}
}
wnoutrefresh(strwin);
}
if (level > 1) {
delwin(txtwin);
delwin(txtbox);
}
return TRUE;
}
int
main(int argc, char *argv[])
{
WINDOW *chrbox;
WINDOW *chrwin;
WINDOW *strwin;
setlocale(LC_ALL, "");
if (argc < 2) {
fprintf(stderr, "usage: %s file\n", argv[0]);
return EXIT_FAILURE;
}
initscr();
chrbox = derwin(stdscr, BASE_Y, COLS, 0, 0);
box(chrbox, 0, 0);
wnoutrefresh(chrbox);
chrwin = derwin(chrbox, 2, COLS - 2, 1, 1);
strwin = derwin(chrbox, 2, COLS - 2, 3, 1);
test_inchs(1, argv, chrwin, strwin);
endwin();
ExitProgram(EXIT_SUCCESS);
}
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