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ncursesw-morphos/tack/ansi.c
Thomas E. Dickey 55ccd2b959 ncurses 5.5
2005-10-09 14:41:57 -04:00

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/*
** Copyright (C) 1991, 1997 Free Software Foundation, Inc.
**
** This file is part of TACK.
**
** TACK is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2, or (at your option)
** any later version.
**
** TACK 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 General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with TACK; see the file COPYING. If not, write to
** the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
** Boston, MA 02110-1301, USA
*/
#include <tack.h>
MODULE_ID("$Id: ansi.c,v 1.10 2005/09/17 19:49:16 tom Exp $")
/*
* Standalone tests for ANSI terminals. Three entry points:
* test_ansi_graphics(), test_ansi_reports() and test_ansi_sgr().
*/
/*****************************************************************************
*
* Test ANSI status reports
*
*****************************************************************************/
/* ASCII control characters */
#define A_DC1 0x11 /* Control Q */
#define A_DC3 0x13 /* Control S */
#define A_ESC 0x1b
#define A_DCS 0x90
#define A_CSI 0x9b
#define A_ST 0x9c
#define MAX_MODES 256
static char default_bank[] = "\033(B\017";
static int private_use, ape, terminal_class;
static short ansi_value[256];
static unsigned char ansi_buf[512], pack_buf[512];
struct ansi_reports {
int lvl, final;
const char *text;
const char *request;
};
static struct ansi_reports report_list[] = {
{0, 'c', "(DA) Primary device attributes", "\033[0c"},
{1, 0, "(DSR) Terminal status", "\033[5n"},
{1, 'R', "(DSR) Cursor position", "\033[6n"},
{62, 0, "(DA) Secondary device attributes", "\033[>0c"},
{62, 0, "(DSR) Printer status", "\033[?15n"},
{62, 0, "(DSR) Function key definition", "\033[?25n"},
{62, 0, "(DSR) Keyboard language", "\033[?26n"},
{63, 0, "(DECRQSS) Data destination", "\033P$q$}\033\\"},
{63, 0, "(DECRQSS) Status line type", "\033P$q$~\033\\"},
{63, 0, "(DECRQSS) Erase attribute", "\033P$q\"q\033\\"},
{63, 0, "(DECRQSS) Personality", "\033P$q\"p\033\\"},
{63, 0, "(DECRQSS) Top and bottom margins", "\033P$qr\033\\"},
{63, 0, "(DECRQSS) Character attributes", "\033P$qm\033\\"},
{63, 0, "(DECRQSS) Illegal request", "\033P$q@\033\\"},
{63, 0, "(DECRQUPSS) User pref supplemental set", "\033[&u"},
{63, 0, "(DECRQPSR) Cursor information", "\033[1$w"},
{63, 0, "(DECRQPSR) Tab stop information", "\033[2$w"},
{64, 0, "(DA) Tertiary device attributes", "\033[=0c"},
{64, 0, "(DSR) Extended cursor position", "\033[?6n"},
{64, 0, "(DSR) Macro space", "\033[?62n"},
{64, 0, "(DSR) Memory checksum", "\033[?63n"},
{64, 0, "(DSR) Data integrity", "\033[?75n"},
{64, 0, "(DSR) Multiple session status", "\033[?85n"},
{64, 0, "(DECRQSS) Attribute change extent", "\033P$q*x\033\\"},
{64, 0, "(DECRQSS) Columns per page", "\033P$q$|\033\\"},
{64, 0, "(DECRQSS) Lines per page", "\033P$qt\033\\"},
{64, 0, "(DECRQSS) Lines per screen", "\033P$q*|\033\\"},
{64, 0, "(DECRQSS) Left and right margins", "\033P$qs\033\\"},
{64, 0, "(DECRQSS) Local functions", "\033P$q+q\033\\"},
{64, 0, "(DECRQSS) Local function key control", "\033P$q=}\033\\"},
{64, 0, "(DECRQSS) Select modifier key reporting", "\033P$q+r\033\\"},
{64, 0, "(DECRQDE) Window report", "\033[\"v"},
{0, 0, 0, 0}
};
struct request_control {
const char *text;
const char *expect;
const char *request;
const char *set_mode;
const char *reset_mode;
};
/* Request control function selection or setting */
static const struct request_control rqss[] = {
{"Data sent to screen", "0", "$}", "\033[0$}", 0},
{"Data sent to disabled status line", "0", "$}", 0, 0},
{"\033[0$~\033[1$}", "\033[0$}", 0, 0, 0},
{"Data sent to enabled status line", "1", "$}", 0, 0},
{"\033[2$~\033[1$}", "\033[0$}", 0, 0, 0},
{"Disable status line", "0", "$~", "\033[0$~", 0},
{"Top status line", "1", "$~", "\033[1$~", 0},
{"Bottom status line", "2", "$~", "\033[2$~", 0},
{"Erasable character", "0", "\"q", "\033[0\"q", 0},
{"Nonerasable character", "1", "\"q", "\033[1\"q", "\033[0\"q"},
{"Top and bottom margins", "3;10", "r", "\0337\033[3;10r", 0},
{"\033[r\0338", 0, 0, 0, 0},
{"Top and bottom margins", "default", "r", "\0337\033[r", "\0338"},
{"Character attributes, dim, bold", "1", "m", "\033[2;1m", "\033[m"},
{"Character attributes, bold, dim", "2", "m", "\033[1;2m", "\033[m"},
{"Character attributes, under, rev", "4;7", "m", "\033[4;7m", "\033[m"},
{"Character attributes, color", "35;42", "m", "\033[35;42m", "\033[m"},
{"All character attributes", "", "m", "\033[1;2;3;4;5;6;7;8;9m", 0},
{"\033[m", 0, 0, 0, 0},
{0, 0, 0, 0, 0}
};
/*
** read_ansi()
**
** read an ANSI status report from terminal
*/
static void
read_ansi(void)
{
int ch, i, j, last_escape;
fflush(stdout);
read_key((char *)ansi_buf, sizeof(ansi_buf));
/* Throw away control characters inside CSI sequences.
Convert two character 7-bit sequences into 8-bit sequences. */
for (i = j = last_escape = 0; (ch = ansi_buf[i]) != 0; i++) {
if (ch == A_ESC) {
if (last_escape == A_ESC) {
pack_buf[j++] = A_ESC;
}
last_escape = A_ESC;
} else
if (last_escape == A_ESC && ch >= '@' && ch <= '_') {
pack_buf[j++] = last_escape = ch + 0x40;
} else
if (last_escape != A_CSI || (ch > 0x20 && ch != 0x80)) {
if (last_escape == A_ESC) {
pack_buf[j++] = A_ESC;
}
if (ch > 0x80 && ch < 0xa0) {
last_escape = ch;
}
pack_buf[j++] = ch;
}
}
if (last_escape == A_ESC) {
pack_buf[j++] = A_ESC;
}
pack_buf[j] = '\0';
return;
}
/*
** valid_mode(expected)
**
** read a terminal mode status report and parse the result
** Return TRUE if we got the expected terminating character.
*/
static int
valid_mode(int expected)
{
unsigned char *s;
int ch, terminator;
read_ansi();
ape = 0;
ch = UChar(pack_buf[0]);
ansi_value[0] = 0;
if (ch != A_CSI && ch != A_DCS)
return FALSE;
s = pack_buf + 1;
private_use = 0;
if ((*s >= '<') & (*s <= '?')) {
private_use = *s++;
}
terminator = 0;
for (; (ch = *s); s++) {
if (ch >= '0' && ch <= '9')
ansi_value[ape] = ansi_value[ape] * 10 + ch - '0';
else if (ch == ';' || ch == ':')
ansi_value[++ape] = 0;
else if (ch >= '<' && ch <= '?')
private_use = ch;
else if (ch >= ' ')
terminator = (terminator << 8) | ch;
else
break;
}
return terminator == expected;
}
/*
** read_reports()
**
** read all the reports in the ANSI report structure
*/
static int
read_reports(void)
{
int i, j, k, tc, vcr, lc;
char *s;
const char *t;
lc = 5;
terminal_class = tc = 0;
for (i = 0; report_list[i].text; i++, lc++) {
if (terminal_class < report_list[i].lvl &&
tc < report_list[i].lvl) {
put_crlf();
menu_prompt();
ptext("/status [q] > ");
j = wait_here();
if (j != 'n' && j != 'N')
return 0;
tc = report_list[i].lvl;
lc = 1;
} else if (lc + 2 >= lines) {
put_crlf();
ptext("Hit any key to continue ");
(void) wait_here();
lc = 1;
}
sprintf(temp, "%s (%s) ", report_list[i].text,
expand_command(report_list[i].request));
ptext(temp);
for (j = strlen(temp); j < 49; j++)
putchp(' ');
tc_putp(report_list[i].request);
vcr = 0;
if (report_list[i].final == 0) {
read_ansi();
} else if (valid_mode(report_list[i].final))
switch (report_list[i].final) {
case 'c':
terminal_class = ansi_value[0];
break;
case 'R':
vcr = TRUE;
break;
}
j = UChar(pack_buf[0]);
if (j != A_CSI && j != A_DCS) {
put_crlf();
t = "*** The above request gives illegal response ***";
ptext(t);
for (j = strlen(t); j < 49; j++)
putchp(' ');
}
s = expand((const char *)ansi_buf);
if (char_count + expand_chars >= columns) {
put_str("\r\n ");
lc++;
}
putln(s);
if (vcr) { /* find out how big the screen is */
tc_putp(report_list[i].request);
if (!valid_mode('R'))
continue;
j = ansi_value[0];
k = ansi_value[1];
tc_putp("\033[255B\033[255C\033[6n");
if (!valid_mode('R'))
continue;
sprintf(temp, "\033[%d;%dH", j, k);
tc_putp(temp);
ptext("(DSR) Screen size (CSI 6 n)");
for (j = char_count; j < 50; j++)
putchp(' ');
sprintf(temp, "%d x %d", ansi_value[1], ansi_value[0]);
ptextln(temp);
}
}
menu_prompt();
ptext("/status r->repeat test, <return> to continue > ");
return wait_here();
}
/*
** request_cfss()
**
** Request Control function selection or settings
*/
static int
request_cfss(void)
{
int i, j, k, l, ch;
char *s;
put_clear();
ptextln("Request Expected Received");
put_crlf();
for (i = 0; rqss[i].text; i++) {
ptext(rqss[i].text);
j = strlen(rqss[i].text) + strlen(rqss[i].expect);
putchp(' ');
for (j++; j < 40; j++)
putchp(' ');
ptext(rqss[i].expect);
putchp(' ');
tc_putp(rqss[i].set_mode);
sprintf(temp, "\033P$q%s\033\\", rqss[i].request);
tc_putp(temp);
read_ansi();
tc_putp(rqss[i].reset_mode);
putchp(' ');
for (j = 0; ansi_buf[j]; j++) {
if (ansi_buf[j] == 'r') {
for (k = j++; (ch = UChar(ansi_buf[k])) != 0; k++)
if (ch == A_ESC) {
break;
} else if (ch == A_ST) {
break;
}
ansi_buf[k] = '\0';
s = expand((const char *)&ansi_buf[j]);
if (char_count + expand_chars >= columns)
put_str("\r\n ");
put_str(s);
}
}
put_crlf();
}
/* calculate the valid attributes */
ptext("Valid attributes: 0");
j = 0;
for (i = 1; i < 20; i++) {
sprintf(temp, "\033[0;%dm\033P$qm\033\\", i);
tc_putp(temp);
(void) valid_mode('m');
if (ape > 0) {
j = i;
sprintf(temp, "\033[0m; %d", i);
tc_putp(temp);
}
}
put_crlf();
/* calculate how many parameters can be sent */
ptext("Max number of parameters: ");
sprintf(temp, "%dm\033P$qm\033\\", j);
l = -1;
if (j > 0)
for (l = 1; l < 33; l++) {
tc_putp("\033[0");
for (ch = 1; ch <= l; ch++)
put_this(';');
tc_putp(temp);
(void) valid_mode('m');
if (ape == 0)
break;
}
tc_putp("\033[m");
if (l >= 0) {
sprintf(temp, "%d", l);
ptext(temp);
} else
ptext("unknown");
put_crlf();
return wait_here();
}
/*
** mode_display(puc, mode, initial, set, reset)
**
** print the mode display entry
*/
static void
mode_display(const char *p, int n, int c, char s, char r)
{
int k;
sprintf(temp, "%s%d (%c, %c, %c)", p, n, c, s, r);
k = strlen(temp);
if (char_count + k >= columns)
put_crlf();
for (; k < 14; k++)
putchp(' ');
put_str(temp);
}
/*
** terminal_state()
**
** test DECRQM status reports
*/
static void
terminal_state(void)
{
static const char *puc[] = {"", "<", "=", ">", "?", 0};
int i, j, k, l, modes_found;
char *s;
char buf[256], tms[256];
int mode_puc[MAX_MODES], mode_number[MAX_MODES];
char set_value[MAX_MODES], reset_value[MAX_MODES];
char current_value[MAX_MODES];
ptext("Testing terminal mode status. (CSI 0 $ p)");
tc_putp("\033[0$p");
modes_found = 0;
tms[0] = '\0';
if (valid_mode(('$' << 8) | 'y')) {
for (i = 0; puc[i]; i++) {
put_crlf();
if (i) {
sprintf(temp, "Private use: %c", puc[i][0]);
} else {
strcpy(temp, "Standard modes:");
}
k = strlen(temp);
ptext(temp);
for (j = 0; j < (int) sizeof(buf); buf[j++] = ' ')
;
for (j = l = 0; j < 255 && j - l < 50; j++) {
sprintf(temp, "\033[%s%d$p", puc[i], j);
tc_putp(temp);
if (!valid_mode(('$' << 8) | 'y')) {
/* not valid, save terminating value */
s = expand((const char *)ansi_buf);
sprintf(tms, "%s%s%d %s ", tms,
puc[i], j, s);
break;
}
if (private_use != puc[i][0])
break;
if (ansi_value[0] != j)
break;
if (ansi_value[1]) {
l = j;
if (k > 70) {
buf[k] = '\0';
put_crlf();
ptextln(buf);
for (k = 0; k < (int) sizeof(buf);) {
buf[k++] = ' ';
}
k = 0;
}
sprintf(temp, " %d", j);
ptext(temp);
k += strlen(temp);
buf[k - 1] = ansi_value[1] + '0';
if (modes_found >= MAX_MODES)
continue;
current_value[modes_found] =
ansi_value[1] + '0';
/* some modes never return */
if ((i == 0 && j == 13) /* control execution */
|| (puc[i][0] == '?' && j == 2)) /* VT52 */
set_value[modes_found] =
reset_value[modes_found] = '-';
else
set_value[modes_found] =
reset_value[modes_found] = ' ';
mode_puc[modes_found] = i;
mode_number[modes_found++] = j;
}
}
buf[k] = '\0';
if (buf[k - 1] != ' ') {
put_crlf();
ptext(buf);
}
}
if ((i = modes_found) != 0) {
put_crlf();
put_crlf();
if (tms[0]) {
ptextln(tms);
}
ptext("Hit 'Y' to test mode set/reset states: ");
i = wait_here();
}
if (i == 'y' || i == 'Y')
while (1) {
#ifdef STATUSFIX
FILE *fp;
#ifdef TEDANSI
fp = fopen("ted.ansi", "w");
#else
fp = fopen("/dev/console", "w");
#endif
#endif
for (i = j = 0; j < modes_found; j = ++i >> 1) {
if (set_value[j] == '-')
continue;
k = (current_value[j] ^ i) & 1;
sprintf(temp, "\033[%s%d%c\033[%s%d$p",
puc[mode_puc[j]], mode_number[j],
k ? 'l' : 'h',
puc[mode_puc[j]], mode_number[j]);
#ifdef STATUSFIX
if (fp) {
fprintf(fp, "%s\n", expand(temp));
fflush(fp);
}
#endif
tc_putp(temp);
if (!valid_mode(('$' << 8) | 'y'))
continue;
if (k) {
reset_value[j] = ansi_value[1] + '0';
} else {
set_value[j] = ansi_value[1] + '0';
}
}
put_str("\033[30l"); /* added for GORT bug
(WY-185) */
#ifdef STATUSFIX
if (fp)
fclose(fp);
#endif
tty_set();
/* print the results */
put_clear();
putln("mode (initial, set, reset)");
for (j = 0; j < modes_found; j++) {
mode_display(puc[mode_puc[j]], mode_number[j],
current_value[j], set_value[j], reset_value[j]);
}
ptext("\n\nHit 'R' to repeat test. 'S' to sort results: ");
i = wait_here();
if (i == 's' || i == 'S') { /* print the same stuff,
sorted by
current_value */
put_crlf();
for (i = '1'; i <= '4'; i++) {
for (j = 0; j < modes_found; j++) {
if (current_value[j] == i)
mode_display(puc[mode_puc[j]],
mode_number[j], current_value[j],
set_value[j], reset_value[j]);
}
}
ptext("\n\nHit 'R' to repeat test: ");
i = wait_here();
}
if (i != 'r' && i != 'R')
break;
tty_raw(1, char_mask);
}
} else {
tty_set();
}
}
/*
** ansi_report_help()
**
** Display the informational data for the ANSI report test.
*/
static void
ansi_report_help(void)
{
ptext("Begin ANSI status report testing. ");
ptext(" Parity bit set will be displayed in reverse video. ");
ptext(" If the terminal hangs, hit any alphabetic key. ");
ptextln(" Use n to continue testing. Use q to quit.");
put_crlf();
}
/*
** test_ansi_reports()
**
** Test the ANSI status report functions
*/
void
tools_status(
struct test_list *t GCC_UNUSED,
int *state GCC_UNUSED,
int *ch)
{
int i;
put_clear();
ansi_report_help();
tty_raw(1, char_mask);
do {
i = read_reports();
if (i != 'r' && i != 'R') {
*ch = i;
return;
}
} while (i);
if (terminal_class >= 63) {
do {
i = request_cfss();
} while (i == 'r' || i == 'R');
*ch = i;
terminal_state();
} else {
tty_set();
}
}
/*
** display_sgr()
**
** Test a range of ANSI sgr attributes
** puc -> Private Use Character
*/
static void
display_sgr(int puc)
{
int k;
temp[0] = puc;
temp[1] = '\0';
for (k = 0; k < 80; k++) {
if (char_count + 8 > 80)
put_crlf();
else if (char_count + 8 > columns)
put_crlf();
else if (k > 0)
printf(" ");
printf("\033[%s%dmMode %2d\033[0m", temp, k, k);
char_count += 8;
if (puc == '\0') {
if (k == 19)
printf("\033[10m");
if (k == 39)
printf("\033[37m");
if (k == 49)
printf("\033[40m");
}
}
put_crlf();
if (puc == '<')
printf("\033[<1m");
else if (puc)
printf("\033[%s0m", temp);
set_attr(0);
}
/*
** print_sgr20(on, off)
**
** print the sgr line for sgr20()
*/
static void
print_sgr20(int on, int off)
{
if (char_count > columns - 13) {
put_crlf();
} else if (char_count) {
put_str(" ");
}
char_count += 11;
printf("%d/%d \033[%dmon\033[%dm off\033[0m", on, off, on, off);
}
/*
** sgr20(void)
**
** display the enter/exit attributes 1-9 and 20-29
*/
static void
sgr20(void)
{
int k;
put_crlf();
ptextln("Test enter/exit attributes 1-9 and 21-29.");
for (k = 1; k < 10; k++) {
print_sgr20(k, k + 20);
}
print_sgr20(1, 22); /* bold */
print_sgr20(2, 22); /* dim */
print_sgr20(8, 22); /* blank */
printf("\033[0m");
set_attr(0);
}
/*
** tools_sgr(testlist, state, ch)
**
** Run the ANSI graphics rendition mode tool
** Return the last character typed.
*/
void
tools_sgr(
struct test_list *t GCC_UNUSED,
int *state GCC_UNUSED,
int *ch)
{
int k;
put_clear();
for (k = 0;;) {
display_sgr(k);
put_crlf();
menu_prompt();
ptext("/sgr Enter =><?r [<cr>] > ");
k = wait_here();
if ((k == 'r') || (k == 'R')) {
k = 0;
} else if ((k < '<') || (k > '?')) {
break;
}
}
sgr20();
put_newlines(2);
*ch = REQUEST_PROMPT;
}
/*****************************************************************************
*
* Test ANSI graphics
*
*****************************************************************************/
/*
** select_bank(bank)
**
** select a graphics character set for ANSI terminals
*/
static void
select_bank(char *bank)
{
tc_putp(bank);
switch (bank[1] & 3) {
case 0:
putchp('O' & 0x1f); /* control O */
break;
case 1:
putchp('N' & 0x1f); /* control N */
tc_putp("\033~");
break;
case 2:
tc_putp("\033n\033}");
break;
case 3:
tc_putp("\033o\033|");
break;
}
}
/*
** show_characters(bank, bias)
**
** print the ANSI graphics characters
*/
static void
show_characters(char *bank, int bias)
{
int i;
sprintf(temp, "G%d GL ", bank[1] & 3);
ptext(temp);
select_bank(bank);
for (i = ' '; i < 0x80; i++) {
if (char_count >= columns ||
(i != ' ' && (i & 31) == 0))
put_str("\n ");
putchp(i + bias);
}
select_bank(default_bank);
put_str(" DEL <");
select_bank(bank);
putchp(0x7f + bias);
select_bank(default_bank);
putchp('>');
put_crlf();
put_crlf();
}
/* ANSI graphics test
94 96 character sets
G0 ( ,
G1 ) -
G2 * .
G3 + /
Standard Definitions
A UK
B US ASCII
Dec extended definitions
0 Special graphics
*/
/*
** tools_charset(testlist, state, ch)
**
** Run the ANSI alt-charset mode tool
*/
void
tools_charset(
struct test_list *t GCC_UNUSED,
int *state GCC_UNUSED,
int *chp GCC_UNUSED)
{
int j, ch;
char bank[32];
put_clear();
ptext("Enter the bank ()*+,-./ followed by the character set");
ptext(" 0123456789:;<=>? for private use, and");
ptextln(" @A...Z[\\]^_`a...z{|}~ for standard sets.");
strcpy(bank, "\033)0");
for (; bank[0];) {
put_crlf();
show_characters(bank, 0);
/* G0 will not print in GR */
if (bank[1] & 3) {
show_characters(bank, 0x80);
}
ptext("bank+set> ");
for (j = 1; (ch = getchp(char_mask)); j++) {
if (ch == EOF)
break;
putchp(ch);
if (j == 1 && ch > '/')
j++;
bank[j] = ch;
if (ch < ' ' || ch > '/')
break;
if (j + 1 >= (int) sizeof(bank))
break;
}
if (j == 1)
break;
if (bank[j] < '0' || bank[j] > '~')
break;
bank[j + 1] = '\0';
}
put_crlf();
}
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