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Diffstat (limited to 'sys/cmd/dvtm/driver.c')
-rw-r--r--sys/cmd/dvtm/driver.c335
1 files changed, 0 insertions, 335 deletions
diff --git a/sys/cmd/dvtm/driver.c b/sys/cmd/dvtm/driver.c
deleted file mode 100644
index 3e6a518..0000000
--- a/sys/cmd/dvtm/driver.c
+++ /dev/null
@@ -1,335 +0,0 @@
-#include <u.h>
-#include <libn.h>
-#include <vendor/unibilium.h>
-
-typedef struct RGB8 RGB8;
-typedef struct Pen Pen;
-typedef struct Term Term;
-
-struct ExtraInfo
-{
- char *enteralt;
- char *exitalt;
-
- char *entermouse;
- char *exitmouse;
-};
-
-static
-struct ExtraInfo vt200 =
-{
- .enteralt = "\e[?1049h",
- .exitalt = "\e[?1049l",
-
- .entermouse = "\e[?1049h\e[?1006l",
- .exitmouse = "\e[?1002l\e[?1006l",
-};
-
-struct RGB8
-{
- uint8 r, g, b;
-};
-
-struct Pen
-{
- uint bold : 1;
- uint italic : 1;
- uint reverse : 1;
- uint strike : 1;
- uint blink : 1;
-
- /* colors */
- uint color : 3;
- union {
- /* 256 color (legacy) */
- struct {
- sint fg : 9, bg : 9; /* 0 - 255 or COLOUR_DEFAULT */
- } idx;
- /* true color (modern) */
- struct {
- RGB8 fg, bg;
- } rgb;
- };
-};
-
-struct Term
-{
- /* meta data */
- char *name;
- unibi_term *info;
- struct {
- uint altscreen : 1;
- uint cursorvis : 1;
- uint mouse : 1;
- } mode;
- struct {
- uint bce : 1;
- int colors;
- } cap;
-
- /* input capture */
- // Input *input;
-
- /* output display */
- int nrow, ncol;
-
- /* output raw text */
- int fd;
- struct {
- char *c, b[512];
- } buf;
-
- struct {
- int len;
- char *b;
- } tmp;
-
- /* info */
- struct {
- /* Positioning */
- char *cup; // cursor_address
- char *vpa; // row_address == vertical position absolute
- char *hpa; // column_address = horizontal position absolute
-
- /* Moving */
- char *cuu; char *cuu1; // Cursor Up
- char *cud; char *cud1; // Cursor Down
- char *cuf; char *cuf1; // Cursor Forward == Right
- char *cub; char *cub1; // Cursor Backward == Left
-
- /* Editing */
- char *ich; char *ich1; // Insert Character
- char *dch; char *dch1; // Delete Character
- char *il; char *il1; // Insert Line
- char *dl; char *dl1; // Delete Line
- char *ech; // Erase Character
- char *ed2; // Erase Data 2 == Clear screen
- char *stbm; // Set Top/Bottom Margins
-
- /* formatting */
- char *sgr; // Select Graphic Rendition
- char *sgr0; // Exit Attribute Mode
- char *sgr_i0, *sgr_i1; // SGR italic off/on
- char *sgr_fg; // SGR foreground colour
- char *sgr_bg; // SGR background colour
-
- // Mode setting/clearing
- char *sm_csr; char *rm_csr; // Set/reset mode: Cursor visible
- } esc;
-};
-
-// -----------------------------------------------------------------------
-// methods
-
-static
-char *
-ttmpbuf(Term *t, int len)
-{
- if (t->tmp.len >= len)
- return t->tmp.b;
-
- /* TODO: error handling */
- return (t->tmp.b = realloc(t->tmp.b, len));
-}
-
-void
-tflush(Term *t)
-{
- if (t->fd != -1)
- write(t->fd, t->buf.b, t->buf.c - t->buf.b);
-
- t->buf.c = t->buf.b;
-}
-
-void
-twrite(Term *t, long len, char *s)
-{
- int n;
- if (!len)
- len = strlen(s);
-
- while (len > 0) {
- n = MIN(len, arrend(t->buf.b) - t->buf.c);
- memcpy(t->buf.c, s, n);
- t->buf.c += n;
- len -= n;
- tflush(t);
- }
-}
-
-static
-void
-tfmt(Term *t, char *esc, int n, ...)
-{
- int i;
- long len;
- va_list args;
- unibi_var_t param[9];
- char buf[64], *c = buf;
-
- if (!esc)
- panicf("no terminfo escape string given");
-
- va_start(args, n);
- for (i = 0; i < arrlen(param) && i < n; i++)
- param[i] = unibi_var_from_num(va_arg(args, int));
- va_end(args);
-
- len = unibi_run(esc, param, c, sizeof(buf));
- if (len < arrlen(buf)) {
- c = ttmpbuf(t, len);
- unibi_run(esc, param, c, len);
- }
-
- twrite(t, len, c);
-}
-
-/* absolute move */
-int
-tgoto(Term *t, int row, int col)
-{
- if (row != -1 && col != -1)
- tfmt(t, t->esc.cup, 2, row, col);
- else if (row != -1) {
- if (!t->esc.vpa)
- return 0;
- tfmt(t, t->esc.vpa, 1, row);
- } else if (col != -1) {
- if (col == 0) {
- twrite(t, 1, "\r");
- return 1;
- }
- if (t->esc.hpa)
- tfmt(t, t->esc.hpa, 1, col);
- else if (t->esc.cuf) {
- twrite(t, 1, "\r");
- tfmt(t, t->esc.cuf, 1, col);
- } else
- return 0;
- } else
- return 0; /* unreachable */
-
- return 1;
-}
-
-/* relative move */
-void
-tjump(Term *t, int down, int right)
-{
- if (down == 1 && t->esc.cud1)
- tfmt(t, t->esc.cud1, 0);
- else if (down == -1 && t->esc.cuu1)
- tfmt(t, t->esc.cuu1, 0);
- else if (down > 0)
- tfmt(t, t->esc.cud, 1, down);
- else if (down < 0)
- tfmt(t, t->esc.cuu, 1, -down);
-
- if (right == 1 && t->esc.cuf1)
- tfmt(t, t->esc.cuf1, 0);
- else if (right == -1 && t->esc.cub1)
- tfmt (t, t->esc.cub1, 0);
- else if (right > 0)
- tfmt(t, t->esc.cuf, 1, right);
- else if( right < 0)
- tfmt(t, t->esc.cub, 1, -right);
-}
-
-void
-tdel(Term *t, int num)
-{
- char *c, buf[64];
- if (num < 1)
- return;
-
- /* TODO: allow for not moving */
- if (t->cap.bce) {
- tfmt(t, t->esc.ech, 1, num);
- tjump(t, 0, num);
- } else {
- c = buf;
- memset(c, ' ', arrlen(buf));
- while(num > 64) {
- twrite(t, arrlen(buf), c);
- num -= arrlen(buf);
- }
- twrite(t, num, c);
- }
-}
-
-void
-tclear(Term *t)
-{
- tfmt(t, t->esc.ed2, 0);
-}
-
-
-// -----------------------------------------------------------------------
-// database lookup
-
-static
-char*
-tryinfostr(Term *t, enum unibi_string s)
-{
- char *val = (char*)unibi_get_str(t->info, s);
- /* TODO: provide fallbacks */
- return val;
-}
-
-static
-char*
-getinfostr(Term *t, enum unibi_string s)
-{
- char *val = tryinfostr(t, s);
- if (!val)
- panicf("required term info string '%s' missing", unibi_name_str(s));
-
- return val;
-}
-
-int
-main()
-{
- Term t;
-
- t.name = getenv("TERM");
- t.info = unibi_from_term(t.name);
-
- t.mode.mouse = 0;
- t.mode.cursorvis = 1;
- t.mode.altscreen = 0;
-
- if (!t.info)
- panicf("could not identify terminal");
-
- t.esc.cup = getinfostr(&t, unibi_cursor_address);
- t.esc.vpa = tryinfostr(&t, unibi_row_address);
- t.esc.hpa = tryinfostr(&t, unibi_column_address);
- t.esc.cuu = getinfostr(&t, unibi_parm_up_cursor);
- t.esc.cuu1 = tryinfostr(&t, unibi_cursor_up);
- t.esc.cud = getinfostr(&t, unibi_parm_down_cursor);
- t.esc.cud1 = tryinfostr(&t, unibi_cursor_down);
- t.esc.cuf = getinfostr(&t, unibi_parm_right_cursor);
- t.esc.cuf1 = tryinfostr(&t, unibi_cursor_right);
- t.esc.cub = getinfostr(&t, unibi_parm_left_cursor);
- t.esc.cub1 = tryinfostr(&t, unibi_cursor_left);
- t.esc.ich = getinfostr(&t, unibi_parm_ich);
- t.esc.ich1 = tryinfostr(&t, unibi_insert_character);
- t.esc.dch = getinfostr(&t, unibi_parm_dch);
- t.esc.dch1 = tryinfostr(&t, unibi_delete_character);
- t.esc.il = getinfostr(&t, unibi_parm_insert_line);
- t.esc.il1 = tryinfostr(&t, unibi_insert_line);
- t.esc.dl = getinfostr(&t, unibi_parm_delete_line);
- t.esc.dl1 = tryinfostr(&t, unibi_delete_line);
- t.esc.ech = getinfostr(&t, unibi_erase_chars);
- t.esc.ed2 = getinfostr(&t, unibi_clear_screen);
- t.esc.stbm = getinfostr(&t, unibi_change_scroll_region);
- t.esc.sgr = getinfostr(&t, unibi_set_attributes);
- t.esc.sgr0 = getinfostr(&t, unibi_exit_attribute_mode);
- t.esc.sgr_i0 = tryinfostr(&t, unibi_exit_italics_mode);
- t.esc.sgr_i1 = tryinfostr(&t, unibi_enter_italics_mode);
- t.esc.sgr_fg = getinfostr(&t, unibi_set_a_foreground);
- t.esc.sgr_bg = getinfostr(&t, unibi_set_a_background);
- t.esc.sm_csr = getinfostr(&t, unibi_cursor_normal);
- t.esc.rm_csr = getinfostr(&t, unibi_cursor_invisible);
-}
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-03 15:36:37 +0000