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vt420.c
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/* $Id: vt420.c,v 1.224 2023/12/29 16:36:47 tom Exp $ */
/*
* Reference: Installing and Using the VT420 Video Terminal (North American
* Model (EK-VT420-UG.002)
*/
#include <vttest.h>
#include <draw.h>
#include <esc.h>
#include <ttymodes.h>
typedef enum {
marNone = -1,
marReset = 0,
marFirst = 1,
marLast = 2,
marMiddle = 3,
marEnd
} MARS;
typedef enum {
/* VT525 specific */
chkFOREGROUND = 0x1,
chkBACKGROUND = 0x2,
/* these are not visually distinct, not useful for testing */
chkPROTECTED = 0x4, /* DECSCA */
chkINVISIBLE = 0x8, /* SGR 8 */
/* these are visually distinct, used in the test */
chkUNDERLINE = 0x10, /* SGR 4 */
chkINVERSE = 0x20, /* SGR 7 */
chkBLINK = 0x40, /* SGR 5 */
chkBOLD = 0x80 /* SGR 1 */
} CHKS;
int origin_mode = FALSE;
char txt_override_color[80];
static int do_lines = FALSE;
static int use_colors = FALSE;
/******************************************************************************/
void
reset_colors(void)
{
if (use_colors) {
sgr("0");
use_colors = FALSE;
if (LOG_ENABLED) {
fprintf(log_fp, "Note: turned off colors\n");
}
}
}
void
set_colors(const char *value)
{
if (do_colors) {
if (value == 0)
value = "0";
sgr(value);
use_colors = strcmp(value, "0");
if (LOG_ENABLED) {
fprintf(log_fp, "Note: turned %s colors\n", use_colors ? "on" : "off");
}
}
}
/******************************************************************************/
int lrmm_flag;
static MARS lr_marg_flag;
static int lr_marg1, lr_marg2;
static MARS tb_marg_flag;
static int tb_marg1, tb_marg2;
char origin_mode_mesg[80];
char lrmm_mesg[80];
char lr_marg_mesg[80];
char tb_marg_mesg[80];
int
toggle_LRMM(MENU_ARGS)
{
lrmm_flag = !lrmm_flag;
if (lrmm_flag)
sm("?69");
else
rm("?69");
return MENU_NOHOLD;
}
/*
* The message tells what margins will be used in the test, not what their
* value is while drawing the menu (since actually setting margins would
* interfere with the menu).
*/
int
toggle_STBM(MENU_ARGS)
{
switch (++tb_marg_flag) {
default:
tb_marg_flag = marReset;
tb_marg1 = 0;
tb_marg2 = 0;
strcpy(tb_marg_mesg, "Top/Bottom margins are reset");
break;
case marFirst:
tb_marg1 = 1;
tb_marg2 = max_lines / 2;
strcpy(tb_marg_mesg, "Top/Bottom margins are set to top half of screen");
break;
case marLast:
tb_marg1 = max_lines / 2;
tb_marg2 = max_lines;
strcpy(tb_marg_mesg,
"Top/Bottom margins are set to bottom half of screen");
break;
case marMiddle:
tb_marg1 = max_lines / 4;
tb_marg2 = (3 * max_lines) / 4;
strcpy(tb_marg_mesg,
"Top/Bottom margins are set to middle half of screen");
break;
}
return MENU_NOHOLD;
}
int
toggle_SLRM(MENU_ARGS)
{
switch (++lr_marg_flag) {
default:
lr_marg_flag = marReset;
lr_marg1 = 0;
lr_marg2 = 0;
strcpy(lr_marg_mesg, "Left/right margins are reset");
break;
case marFirst:
lr_marg1 = 1;
lr_marg2 = min_cols / 2;
strcpy(lr_marg_mesg, "Left/right margins are set to left half of screen");
break;
case marLast:
lr_marg1 = (min_cols / 2) + 1;
lr_marg2 = min_cols;
strcpy(lr_marg_mesg,
"Left/right margins are set to right half of screen");
break;
case marMiddle:
lr_marg1 = (min_cols / 4) + 1;
lr_marg2 = (3 * min_cols) / 4;
strcpy(lr_marg_mesg,
"Left/right margins are set to middle half of screen");
break;
}
return MENU_NOHOLD;
}
int
get_top_margin(void)
{
int result = (tb_marg1 ? tb_marg1 : 1);
if (origin_mode)
result = 1;
return result;
}
int
get_left_margin(void)
{
int result = ((lrmm_flag && lr_marg1) ? lr_marg1 : 1);
if (origin_mode)
result = 1;
return result;
}
int
get_right_margin(void)
{
int result = ((lrmm_flag && lr_marg2) ? lr_marg2 : min_cols);
if (origin_mode) {
result = (((lrmm_flag && lr_marg2) ? lr_marg2 : min_cols) -
((lrmm_flag && lr_marg1) ? lr_marg1 : 1) +
1);
}
return result;
}
int
get_bottom_margin(int n)
{
int result = (tb_marg2 ? tb_marg2 : (n));
if (origin_mode) {
result = ((tb_marg2 ? tb_marg2 : max_lines) -
(tb_marg1 ? tb_marg1 : 1) +
1);
}
return result;
}
static int
get_hold_col(void)
{
int hold_col = 1;
if (lrmm_flag) {
switch (lr_marg_flag) {
default:
break;
case marFirst:
hold_col = get_right_margin() + 1;
break;
case marMiddle:
hold_col = get_left_margin();
break;
}
}
return hold_col;
}
/*
* Return a good row value at which to print a prompt, avoiding most overwrite
* of test-results.
*/
static int
get_hold_row(void)
{
int hold_row;
switch (tb_marg_flag) {
default:
hold_row = max_lines / 2;
break;
case marFirst:
hold_row = (origin_mode
? (max_lines - 4)
: (get_bottom_margin(max_lines) + 1));
break;
case marMiddle:
hold_row = (max_lines > 16) ? (max_lines - 4) : (max_lines / 2);
break;
case marLast:
hold_row = 1;
break;
}
return hold_row;
}
static int
hold_clear(void)
{
int result;
switch (tb_marg_flag) {
default:
result = 0;
break;
case marFirst:
result = 1;
break;
case marReset:
case marLast:
result = 0;
break;
}
return result;
}
/*
* Prompt as part of a multi-step test, temporarily resetting DECOM so we can
* put the prompt anywhere.
*/
static void
special_prompt(int row, int col, const char *msg)
{
if (origin_mode)
decom(FALSE);
vt_move(row, col);
if (msg != 0) {
printxx("%s", msg);
vt_move(row + 1, col);
}
holdit();
if (origin_mode)
decom(TRUE);
}
/*
* Fill area outside margins with given character, to help show that changes
* are limited to the area within margins.
*/
static void
fill_outside(int ch)
{
int row, col;
if (LOG_ENABLED) {
fprintf(log_fp, "Note: filling outside margins with '%c'\n", ch);
}
if (!do_colors)
set_colors("0");
if (origin_mode)
decom(FALSE);
for (row = 1; row <= max_lines; ++row) {
if (row < tb_marg1 ||
row > tb_marg2 ||
lr_marg1 > 1 ||
lr_marg2 < min_cols) {
int first = 1;
int next = 0;
for (col = 1; col <= min_cols; ++col) {
if ((lrmm_flag && lr_marg1 && col < lr_marg1) ||
(lrmm_flag && lr_marg2 && col > lr_marg2) ||
(tb_marg1 != 0 && row < tb_marg1) ||
(tb_marg2 != 0 && row > tb_marg2)) {
if (first || (next != col)) {
vt_move(row, col);
first = 0;
next = col + 1;
}
putchar(ch);
++next;
}
}
}
}
if (origin_mode)
decom(TRUE);
}
void
test_with_margins(int enable)
{
switch (enable) {
case 1:
fill_outside('.');
/* FALLTHRU */
case 2:
decstbm(tb_marg1, tb_marg2);
decslrm(lr_marg1, lr_marg2);
if (origin_mode)
decom(TRUE);
break;
default:
decstbm(0, 0);
decslrm(0, 0);
if (origin_mode)
decom(FALSE);
break;
}
}
/*
* Fill the area within margins with a test pattern. The top line is numbers,
* the bottom line is alphas. In between, use asterisks.
*/
static void
fill_margins(void)
{
int top = get_top_margin();
int bot = get_bottom_margin(max_lines);
int lft = get_left_margin();
int rgt = get_right_margin();
int row, col;
set_colors(WHITE_ON_BLUE);
decawm(FALSE); /* do this to allow writing in lower-right */
for (row = top; row <= bot; ++row) {
cup(row, lft);
for (col = lft; col <= rgt; ++col) {
if (row == top) {
putchar((col - lft) % 10 + '0');
} else if (row == bot) {
putchar((col - lft) % 26 + 'a');
} else {
putchar('*');
}
}
}
decawm(TRUE);
}
static void
setup_rectangle(BOX *box, int last)
{
box->top = 5;
box->left = 5;
box->right = min_cols - 5;
box->bottom = max_lines - 10;
if (origin_mode) {
int top = get_top_margin();
int lft = get_left_margin();
int rgt = get_right_margin();
int bot = get_bottom_margin(last - 1);
int wide = (rgt - lft + 1);
int high = (bot - top + 1);
if (high > 20) {
box->top = 5;
box->bottom = high - 10;
} else {
box->top = 2;
box->bottom = high - 2;
}
if (wide > 20) {
box->left = 5;
box->right = wide - 5;
} else {
box->left = 2;
box->right = wide - 2;
}
}
}
#define DATA(name,level) { name, #name, level }
static int
show_DECLRMM(MENU_ARGS)
{
/* *INDENT-OFF* */
RQM_DATA dec_modes[] = { /* this list is sorted by code, not name */
DATA( DECLRMM, 4 /* left/right margin mode */),
};
/* *INDENT-ON* */
int code;
int old_DECRPM = set_DECRPM(4);
code = any_RQM(PASS_ARGS, dec_modes, TABLESIZE(dec_modes), 1);
set_DECRPM(old_DECRPM);
return code;
}
#undef DATA
/*
* Allow user to test the same screens with/without lines.
*/
static int
toggle_lines_mode(MENU_ARGS)
{
do_lines = !do_lines;
return MENU_NOHOLD;
}
/*
* Allow user to test the same screens with/without origin-mode.
*/
int
toggle_DECOM(MENU_ARGS)
{
origin_mode = !origin_mode;
return MENU_NOHOLD;
}
/*
* DECALN does not set attributes; we want a colored screen for some tests.
*/
static void
fill_screen(void)
{
if (do_colors) {
int y, x;
set_colors(WHITE_ON_BLUE);
for (y = 0; y < max_lines - 4; ++y) {
cup(y + 1, 1);
for (x = 0; x < min_cols; ++x)
putchar('E');
}
/* make this a different color to show fill versus erase diffs */
set_colors(WHITE_ON_GREEN);
} else {
decaln(); /* fill the screen */
}
}
/******************************************************************************/
static int
rpt_DECSACE(MENU_ARGS)
{
return any_decrqss(the_title, "*x");
}
static int
rpt_DECSNLS(MENU_ARGS)
{
return any_decrqss(the_title, "*|");
}
static int
rpt_DECSLRM(MENU_ARGS)
{
return any_decrqss(the_title, "s");
}
static int
rpt_DECELF(MENU_ARGS)
{
return any_decrqss(the_title, "+q");
}
/*
* VT420 manual shows "=}", but the terminal returns an error. VT510 sequences
* show "*}".
*/
static int
rpt_DECLFKC(MENU_ARGS)
{
return any_decrqss(the_title, "*}");
}
static int
rpt_DECSMKR(MENU_ARGS)
{
return any_decrqss(the_title, "+r");
}
/******************************************************************************/
static void
show_DataIntegrity(char *report)
{
int pos = 0;
int code = scanto(report, &pos, 'n');
const char *show;
switch (code) {
case 70:
show = "No communication errors";
break;
case 71:
show = "Communication errors";
break;
case 73:
show = "Not reported since last power-up or RIS";
break;
default:
show = SHOW_FAILURE;
}
show_result("%s", show);
}
static void
show_keypress(int row, int col)
{
char *report;
char last[BUFSIZ];
last[0] = '\0';
vt_move(row++, 1);
println("When you are done, press any key twice to quit.");
vt_move(row, col);
fflush(stdout);
while (strcmp(report = instr(), last)) {
vt_move(row, col);
vt_clear(0);
chrprint2(report, row, col);
strncpy(last, report, sizeof(last) - 2)[sizeof(last) - 2] = '\0';
}
}
static void
show_MultisessionStatus(char *report)
{
int pos = 0;
int Ps1 = scan_any(report, &pos, 'n');
int Ps2 = scanto(report, &pos, 'n');
const char *show;
switch (Ps1) {
case 80:
show = "SSU sessions enabled (%d max)";
break;
case 81:
show = "SSU sessions available but pending (%d max)";
break;
case 83:
show = "SSU sessions not ready";
break;
case 87:
show = "Sessions on separate lines";
break;
default:
show = SHOW_FAILURE;
}
show_result(show, Ps2);
}
/******************************************************************************/
/*
* VT400 & up.
* DECBI - Back Index
* This control function moves the cursor backward one column. If the cursor
* is at the left margin, then all screen data within the margin moves one
* column to the right. The column that shifted past the right margin is lost.
*
* Format: ESC 6
* Description:
* DECBI adds a new column at the left margin with no visual attributes. DECBI
* is not affected by the margins. If the cursor is at the left border of the
* page when the terminal received DECBI, then the terminal ignores DECBI.
*/
static int
tst_DECBI(MENU_ARGS)
{
int n, m;
int last = max_lines - 4;
int final;
int top;
int lft;
int rgt;
test_with_margins(1);
top = get_top_margin();
lft = get_left_margin();
rgt = get_right_margin();
final = (rgt - lft + 1) / 4;
set_colors(WHITE_ON_BLUE);
for (n = final; n > 0; n--) {
slowly();
cup(top, lft);
if (n != final) {
for (m = 0; m < 4; m++)
decbi();
}
printxx("%3d", n);
}
reset_colors();
test_with_margins(0);
vt_move(last, 1);
vt_clear(0);
println(the_title);
println("If your terminal supports DECBI (backward index), then the top row");
printxx("should be numbered 1 through %d.\n", final);
return MENU_HOLD;
}
static int
tst_DECBKM(MENU_ARGS)
{
int row, col;
char *report;
vt_move(1, 1);
println(the_title);
set_tty_raw(TRUE);
set_tty_echo(FALSE);
reset_inchar();
decbkm(TRUE);
println("Press the backspace key");
vt_move(row = 3, col = 10);
report = instr();
chrprint2(report, row, col);
show_result(!strcmp(report, "\010") ? SHOW_SUCCESS : SHOW_FAILURE);
reset_inchar();
vt_move(5, 1);
decbkm(FALSE);
println("Press the backspace key again");
vt_move(row = 6, col = 10);
report = instr();
chrprint2(report, row, col);
show_result(!strcmp(report, "\177") ? SHOW_SUCCESS : SHOW_FAILURE);
vt_move(max_lines - 1, 1);
restore_ttymodes();
return MENU_HOLD;
}
/*
* VT400 & up
* Change Attributes in Rectangular Area
*/
static int
tst_DECCARA(MENU_ARGS)
{
int last = max_lines - 4;
BOX box;
setup_rectangle(&box, last);
test_with_margins(1);
set_colors(WHITE_ON_BLUE);
decsace(TRUE);
fill_screen();
deccara(box.top, box.left, box.bottom, box.right, 7); /* invert a rectangle) */
deccara(box.top + 1, box.left + 1, box.bottom - 1, box.right - 1, 0); /* invert a rectangle) */
test_with_margins(0);
sgr("0");
vt_move(last, 1);
vt_clear(0);
println(the_title);
println("There should be an open rectangle formed by reverse-video E's");
holdit();
test_with_margins(2);
decsace(FALSE);
fill_screen();
deccara(box.top, box.left, box.bottom, box.right, 7); /* invert a rectangle) */
deccara(box.top + 1, box.left + 1, box.bottom - 1, box.right - 1, 0); /* invert a rectangle) */
sgr("0");
test_with_margins(0);
vt_move(last, 1);
vt_clear(0);
println(the_title);
println("There should be an open rectangle formed by reverse-video E's");
println("combined with wrapping at the margins.");
return MENU_HOLD;
}
#define fmt_DECCKSR "Testing DECCKSR: %s"
static int
parse_DECCKSR(char *report, int Pid, int *digits, int *checksum)
{
int result = 0;
int pos = 0;
int actual;
char *after;
char *before;
if ((report = skip_dcs(report)) != 0
&& strip_terminator(report)
&& strlen(report) > 1
&& scanto(report, &pos, '!') == Pid
&& report[pos++] == '~'
&& (after = skip_xdigits((before = report + pos), &actual)) != 0
&& *after == '\0') {
result = 1;
*digits = (int) (after - before);
*checksum = actual;
}
return result;
}
static char *
check_DECCKSR(char *target, char *source, int Pid, int expected)
{
int digits;
int actual;
if (parse_DECCKSR(source, Pid, &digits, &actual)) {
if (digits != 4) {
sprintf(target, "%s: expected 4 digits", SHOW_FAILURE);
} else if (expected < 0 || (actual == expected)) {
strcpy(target, SHOW_SUCCESS);
} else {
sprintf(target, "expected %04X", (expected & 0xffff));
}
} else {
strcpy(target, SHOW_FAILURE);
}
return target;
}
static int
tst_DECCKSR(MENU_ARGS, int Pid, const char *the_csi, int expected)
{
char *report;
int row, col;
char temp[80];
vt_move(1, 1);
printxx(fmt_DECCKSR, the_title);
set_tty_raw(TRUE);
set_tty_echo(FALSE);
do_csi("%s", the_csi);
report = get_reply();
vt_move(row = 3, col = 10);
chrprint2(report, row, col);
show_result("%s", check_DECCKSR(temp, report, Pid, expected));
restore_ttymodes();
vt_move(max_lines - 1, 1);
return MENU_HOLD;
}
/*
* VT400 & up.
* Copy Rectangular area
*/
static int
tst_DECCRA(MENU_ARGS)
{
#define adj_y 3
#define adj_x 4
#define adj_DECCRA " (down %d, right %d)\r\n", box.bottom + 1 - box.top, box.right + 1 - box.left, adj_y, adj_x
#define msg_DECCRA(msg) "The %dx%d box " msg adj_DECCRA
BOX box;
int hmargin = origin_mode ? ((get_right_margin() * 3) / 8) : 30;
int vmargin = origin_mode ? ((get_bottom_margin(max_lines) * 2) / 5) : 10;
int last = max_lines - 3;
if (make_box_params(&box, vmargin, hmargin) == 0) {
box.top = 5;
box.left = 5;
test_with_margins(1);
if (do_colors) {
set_colors(WHITE_ON_BLUE);
} else {
sgr(BLINK_REVERSE);
}
draw_box_outline(&box, do_lines ? -1 : '*');
sgr("0");
test_with_margins(0);
vt_move(last, 1);
println(the_title);
tprintf(msg_DECCRA("will be copied"));
holdit();
test_with_margins(2);
deccra(box.top, box.left, box.bottom, box.right, 1,
box.top + adj_y, box.left + adj_x, 1);
test_with_margins(0);
vt_move(last, 1);
vt_clear(0);
tprintf(msg_DECCRA("should be copied, overlapping"));
holdit();
test_with_margins(2);
make_box_params(&box, vmargin, hmargin);
box.top = 5;
box.left = 5;
if (do_colors) {
set_colors(YELLOW_ON_BLACK);
} else {
sgr("0;7"); /* fill the box in reverse */
}
draw_box_filled(&box, -1);
if (do_colors) {
set_colors(WHITE_ON_BLUE);
} else {
sgr(BLINK_REVERSE);
}
draw_box_outline(&box, do_lines ? -1 : '*');
sgr("0");
test_with_margins(0);
vt_move(last, 1);
println(the_title);
tprintf(msg_DECCRA("will be copied"));
holdit();
test_with_margins(2);
sgr("0;4"); /* set underline, to check if that leaks through */
deccra(box.top, box.left, box.bottom, box.right, 1,
box.top + adj_y, box.left + adj_x, 1);
sgr("0");
test_with_margins(0);
vt_move(last, 1);
vt_clear(0);
tprintf(msg_DECCRA("should be copied, overlapping"));
}
return MENU_HOLD;
}
static int
marker_of(int n)
{
return (n - 1) % 26 + 'a';
}
/*
* VT400 & up.
* Delete column.
*/
static int
tst_DECDC(MENU_ARGS)
{
int n;
int last = max_lines - 3;
int base_row;
int base_col;
int left_col;
int last_row;
int real_col;
int top;
int bot;
int lft;
int rgt;
int final_dc;
char mark_1st = 0;
char mark_2nd = 0;
test_with_margins(1);
set_colors(WHITE_ON_BLUE);
top = get_top_margin();
lft = get_left_margin();
rgt = get_right_margin();
bot = get_bottom_margin(last - 1);
/*
* Adjustments so that most of the initial line (before shifting) passes
* through the area within margins.
*/
if (origin_mode) {
base_row = 0;
if (lrmm_flag) {
left_col = 1;
switch (tb_marg_flag) {
default:
last_row = bot;
break;
case marReset:
case marLast:
last_row = bot - 3;
break;
}
base_col = rgt - (bot - top) + last_row;
if (base_col < 0)
base_col = 0;
if (base_col > rgt)
base_col = rgt;
real_col = lr_marg1 + lft - (lr_marg1 != 0);
} else {
last_row = last;
base_col = (2 * last);
left_col = 1;
real_col = lft;
}
} else {
switch (lr_marg_flag) {
default:
base_col = (2 * last);
left_col = 1;
break;
case marFirst:
base_col = (min_cols / 2);
left_col = 1;
break;
case marMiddle:
base_col = (3 * min_cols) / 4;
left_col = (min_cols / 4) + 1;
break;
case marLast:
base_col = min_cols + 0;
left_col = (min_cols / 2) + 1;
break;
}
if (tb_marg_flag == marLast) {
base_row = max_lines / 2;
} else {
base_row = 0;
}
last_row = last;
real_col = lft;