diff options
Diffstat (limited to 'contrib/syslinux/latest/com32/lib/sys/ansi.c')
-rw-r--r-- | contrib/syslinux/latest/com32/lib/sys/ansi.c | 444 |
1 files changed, 0 insertions, 444 deletions
diff --git a/contrib/syslinux/latest/com32/lib/sys/ansi.c b/contrib/syslinux/latest/com32/lib/sys/ansi.c deleted file mode 100644 index f73c03e..0000000 --- a/contrib/syslinux/latest/com32/lib/sys/ansi.c +++ /dev/null @@ -1,444 +0,0 @@ -/* ----------------------------------------------------------------------- * - * - * Copyright 2004-2008 H. Peter Anvin - All Rights Reserved - * - * 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, 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 AUTHORS OR 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. - * - * ----------------------------------------------------------------------- */ - -/* - * ansi.c - * - * ANSI character code engine - */ - -#include <string.h> -#include <colortbl.h> -#include "ansi.h" - -static const struct term_state default_state = { - .state = st_init, - .pvt = false, - .nparms = 0, - .xy = {0, 0}, - .cindex = 0, /* First color table entry */ - .vtgraphics = false, - .intensity = 1, - .underline = false, - .blink = false, - .reverse = false, - .fg = 7, - .bg = 0, - .autocr = true, /* Mimic \n -> \r\n conversion by default */ - .autowrap = true, /* Wrap lines by default */ - .saved_xy = {0, 0}, - .cursor = true, -}; - -/* DEC VT graphics to codepage 437 table (characters 0x60-0x7F only) */ -static const char decvt_to_cp437[] = { - 0004, 0261, 0007, 0007, 0007, 0007, 0370, 0361, - 0007, 0007, 0331, 0277, 0332, 0300, 0305, 0304, - 0304, 0304, 0137, 0137, 0303, 0264, 0301, 0302, - 0263, 0363, 0362, 0343, 0330, 0234, 0007, 00 -}; - -void __ansi_init(const struct term_info *ti) -{ - memcpy(ti->ts, &default_state, sizeof default_state); -} - -void __ansi_putchar(const struct term_info *ti, uint8_t ch) -{ - const struct ansi_ops *op = ti->op; - struct term_state *st = ti->ts; - const int rows = ti->rows; - const int cols = ti->cols; - struct curxy xy = st->xy; - - switch (st->state) { - case st_init: - switch (ch) { - case 1 ... 5: - st->state = st_tbl; - st->parms[0] = ch; - break; - case '\a': - op->beep(); - break; - case '\b': - if (xy.x > 0) - xy.x--; - break; - case '\t': - { - int nsp = 8 - (xy.x & 7); - while (nsp--) - __ansi_putchar(ti, ' '); - } - return; /* Cursor already updated */ - case '\n': - case '\v': - case '\f': - xy.y++; - if (st->autocr) - xy.x = 0; - break; - case '\r': - xy.x = 0; - break; - case 127: - /* Ignore delete */ - break; - case 14: - st->vtgraphics = 1; - break; - case 15: - st->vtgraphics = 0; - break; - case 27: - st->state = st_esc; - break; - default: - /* Print character */ - if (ch >= 32) { - if (st->vtgraphics && (ch & 0xe0) == 0x60) - ch = decvt_to_cp437[ch - 0x60]; - - op->write_char(xy.x, xy.y, ch, st); - xy.x++; - } - break; - } - break; - - case st_esc: - switch (ch) { - case '%': - case '(': - case ')': - case '#': - /* Ignore this plus the subsequent character, allows - compatibility with Linux sequence to set charset */ - break; - case '[': - st->state = st_csi; - st->nparms = 0; - st->pvt = false; - memset(st->parms, 0, sizeof st->parms); - break; - case 'c': - /* Reset terminal */ - memcpy(&st, &default_state, sizeof st); - op->erase(st, 0, 0, cols - 1, rows - 1); - xy.x = xy.y = 0; - st->state = st_init; - break; - default: - /* Ignore sequence */ - st->state = st_init; - break; - } - break; - - case st_csi: - { - int p0 = st->parms[0] ? st->parms[0] : 1; - - if (ch >= '0' && ch <= '9') { - st->parms[st->nparms] = st->parms[st->nparms] * 10 + (ch - '0'); - } else if (ch == ';') { - st->nparms++; - if (st->nparms >= ANSI_MAX_PARMS) - st->nparms = ANSI_MAX_PARMS - 1; - break; - } else if (ch == '?') { - st->pvt = true; - } else { - switch (ch) { - case 'A': - { - int y = xy.y - p0; - xy.y = (y < 0) ? 0 : y; - } - break; - case 'B': - { - int y = xy.y + p0; - xy.y = (y >= rows) ? rows - 1 : y; - } - break; - case 'C': - { - int x = xy.x + p0; - xy.x = (x >= cols) ? cols - 1 : x; - } - break; - case 'D': - { - int x = xy.x - p0; - xy.x = (x < 0) ? 0 : x; - } - break; - case 'E': - { - int y = xy.y + p0; - xy.y = (y >= rows) ? rows - 1 : y; - xy.x = 0; - } - break; - case 'F': - { - int y = xy.y - p0; - xy.y = (y < 0) ? 0 : y; - xy.x = 0; - } - break; - case 'G': - case '\'': - { - int x = st->parms[0] - 1; - xy.x = (x >= cols) ? cols - 1 : (x < 0) ? 0 : x; - } - break; - case 'H': - case 'f': - { - int y = st->parms[0] - 1; - int x = st->parms[1] - 1; - - xy.x = (x >= cols) ? cols - 1 : (x < 0) ? 0 : x; - xy.y = (y >= rows) ? rows - 1 : (y < 0) ? 0 : y; - } - break; - case 'J': - { - switch (st->parms[0]) { - case 0: - op->erase(st, xy.x, xy.y, cols - 1, xy.y); - if (xy.y < rows - 1) - op->erase(st, 0, xy.y + 1, cols - 1, rows - 1); - break; - - case 1: - if (xy.y > 0) - op->erase(st, 0, 0, cols - 1, xy.y - 1); - if (xy.y > 0) - op->erase(st, 0, xy.y, xy.x - 1, xy.y); - break; - - case 2: - op->erase(st, 0, 0, cols - 1, rows - 1); - break; - - default: - /* Ignore */ - break; - } - } - break; - case 'K': - { - switch (st->parms[0]) { - case 0: - op->erase(st, xy.x, xy.y, cols - 1, xy.y); - break; - - case 1: - if (xy.x > 0) - op->erase(st, 0, xy.y, xy.x - 1, xy.y); - break; - - case 2: - op->erase(st, 0, xy.y, cols - 1, xy.y); - break; - - default: - /* Ignore */ - break; - } - } - break; - case 'h': - case 'l': - { - bool set = (ch == 'h'); - switch (st->parms[0]) { - case 7: /* DECAWM */ - st->autowrap = set; - break; - case 20: /* LNM */ - st->autocr = set; - break; - case 25: /* DECTECM */ - st->cursor = set; - op->showcursor(st); - break; - default: - /* Ignore */ - break; - } - break; - } - case 'm': - { - static const int ansi2pc[8] = - { 0, 4, 2, 6, 1, 5, 3, 7 }; - - int i; - for (i = 0; i <= st->nparms; i++) { - int a = st->parms[i]; - switch (a) { - case 0: - st->fg = 7; - st->bg = 0; - st->intensity = 1; - st->underline = 0; - st->blink = 0; - st->reverse = 0; - break; - case 1: - st->intensity = 2; - break; - case 2: - st->intensity = 0; - break; - case 4: - st->underline = 1; - break; - case 5: - st->blink = 1; - break; - case 7: - st->reverse = 1; - break; - case 21: - case 22: - st->intensity = 1; - break; - case 24: - st->underline = 0; - break; - case 25: - st->blink = 0; - break; - case 27: - st->reverse = 0; - break; - case 30 ... 37: - st->fg = ansi2pc[a - 30]; - break; - case 38: - st->fg = 7; - st->underline = 1; - break; - case 39: - st->fg = 7; - st->underline = 0; - break; - case 40 ... 47: - st->bg = ansi2pc[a - 40]; - break; - case 49: - st->bg = 7; - break; - default: - /* Do nothing */ - break; - } - } - } - break; - case 's': - st->saved_xy = xy; - break; - case 'u': - xy = st->saved_xy; - break; - default: /* Includes CAN and SUB */ - break; /* Drop unknown sequence */ - } - st->state = st_init; - } - } - break; - - case st_tbl: - st->parms[1] = 0; - if (ch == '#') - st->state = st_tblc; - else - st->state = st_init; - break; - - case st_tblc: - { - unsigned int n = (unsigned char)ch - '0'; - const char *p; - - if (n < 10) { - st->parms[1] = st->parms[1] * 10 + n; - - if (!--st->parms[0]) { - if (st->parms[1] < console_color_table_size) { - /* Set the color table index */ - st->cindex = st->parms[1]; - - /* See if there are any other attributes we care about */ - p = console_color_table[st->parms[1]].ansi; - if (p) { - st->state = st_esc; - __ansi_putchar(ti, '['); - __ansi_putchar(ti, '0'); - __ansi_putchar(ti, ';'); - while (*p) - __ansi_putchar(ti, *p++); - __ansi_putchar(ti, 'm'); - } - } - st->state = st_init; - } - } else { - st->state = st_init; - } - } - break; - } - - /* If we fell off the end of the screen, adjust */ - if (xy.x >= cols) { - if (st->autowrap) { - xy.x = 0; - xy.y++; - } else { - xy.x = cols - 1; - } - } - while (xy.y >= rows) { - xy.y--; - op->scroll_up(st); - } - - /* Update cursor position */ - op->set_cursor(xy.x, xy.y, st->cursor); - st->xy = xy; -} |