#include "madtty.h"
#include "roteprivate.h"
-#include "inject_csi.h"
+
+#define MAX_CSI_ES_PARAMS 32
+
+static inline void clamp_cursor_to_bounds(RoteTerm *rt)
+{
+ if (rt->crow < 0) rt->curpos_dirty = true, rt->crow = 0;
+ if (rt->ccol < 0) rt->curpos_dirty = true, rt->ccol = 0;
+
+ if (rt->crow >= rt->rows)
+ rt->curpos_dirty = true, rt->crow = rt->rows - 1;
+
+ if (rt->ccol >= rt->cols)
+ rt->curpos_dirty = true, rt->ccol = rt->cols - 1;
+}
static void cursor_line_down(RoteTerm *rt)
{
}
}
+/****************************************************************************/
+/* CSI things */
+/****************************************************************************/
+
+/* interprets a 'set attribute' (SGR) CSI escape sequence */
+static void interpret_csi_SGR(RoteTerm *rt, int param[], int pcount)
+{
+ int i;
+
+ if (pcount == 0) {
+ /* special case: reset attributes */
+ rt->curattr = 0x70;
+ return;
+ }
+
+ for (i = 0; i < pcount; i++) {
+
+ // From http://vt100.net/docs/vt510-rm/SGR table 5-16
+ // 0 All attributes off
+ // 1 Bold
+ // 4 Underline
+ // 5 Blinking
+ // 7 Negative image
+ // 8 Invisible image
+ // 10 The ASCII character set is the current 7-bit
+ // display character set (default) - SCO Console only.
+ // 11 Map Hex 00-7F of the PC character set codes
+ // to the current 7-bit display character set
+ // - SCO Console only.
+ // 12 Map Hex 80-FF of the current character set to
+ // the current 7-bit display character set - SCO
+ // Console only.
+ // 22 Bold off
+ // 24 Underline off
+ // 25 Blinking off
+ // 27 Negative image off
+ // 28 Invisible image off
+
+ if (param[i] == 0) rt->curattr = 0x70;
+ else if (param[i] == 1 || param[i] == 2 || param[i] == 4) /* set bold */
+ ROTE_ATTR_MOD_BOLD(rt->curattr,1);
+ else if (param[i] == 5) /* set blink */
+ ROTE_ATTR_MOD_BLINK(rt->curattr,1);
+ else if (param[i] == 7 || param[i] == 27) { /* reverse video */
+ int fg = ROTE_ATTR_FG(rt->curattr);
+ int bg = ROTE_ATTR_BG(rt->curattr);
+ ROTE_ATTR_MOD_FG(rt->curattr, bg);
+ ROTE_ATTR_MOD_BG(rt->curattr, fg);
+ }
+ else if (param[i] == 8) rt->curattr = 0x0; /* invisible */
+ else if (param[i] == 22 || param[i] == 24) /* bold off */
+ ROTE_ATTR_MOD_BOLD(rt->curattr,0);
+ else if (param[i] == 25) /* blink off */
+ ROTE_ATTR_MOD_BLINK(rt->curattr,0);
+ else if (param[i] == 28) /* invisible off */
+ rt->curattr = 0x70;
+ else if (param[i] >= 30 && param[i] <= 37) /* set fg */
+ ROTE_ATTR_MOD_FG(rt->curattr, param[i] - 30);
+ else if (param[i] >= 40 && param[i] <= 47) /* set bg */
+ ROTE_ATTR_MOD_BG(rt->curattr, param[i] - 40);
+ else if (param[i] == 39) /* reset foreground to default */
+ ROTE_ATTR_MOD_FG(rt->curattr, 7);
+ else if (param[i] == 49) /* reset background to default */
+ ROTE_ATTR_MOD_BG(rt->curattr, 0);
+ }
+}
+
+/* interprets an 'erase display' (ED) escape sequence */
+static void interpret_csi_ED(RoteTerm *rt, int param[], int pcount)
+{
+ int r, c;
+ int start_row, start_col, end_row, end_col;
+
+ /* decide range */
+ if (pcount && param[0] == 2)
+ start_row = 0, start_col = 0, end_row = rt->rows - 1,
+ end_col = rt->cols - 1;
+
+ else if (pcount && param[0] == 1)
+ start_row = 0, start_col = 0, end_row = rt->crow,
+ end_col = rt->ccol;
+
+ else start_row = rt->crow, start_col = rt->ccol,
+ end_row = rt->rows - 1, end_col = rt->cols - 1;
+
+ /* clean range */
+ for (r = start_row; r <= end_row; r++) {
+ rt->line_dirty[r] = true;
+
+ for (c = (r == start_row ? start_col : 0);
+ c <= (r == end_row ? end_col : rt->cols - 1);
+ c++) {
+ rt->cells[r][c].ch = 0x20;
+ rt->cells[r][c].attr = rt->curattr;
+ }
+ }
+}
+
+/* interprets a 'move cursor' (CUP) escape sequence */
+static void interpret_csi_CUP(RoteTerm *rt, int param[], int pcount)
+{
+ if (pcount == 0) {
+ /* special case */
+ rt->crow = rt->ccol = 0;
+ return;
+ }
+ else if (pcount < 2) return; /* malformed */
+
+ rt->crow = param[0] - 1; /* convert from 1-based to 0-based */
+ rt->ccol = param[1] - 1; /* convert from 1-based to 0-based */
+
+ rt->curpos_dirty = true;
+
+ clamp_cursor_to_bounds(rt);
+}
+
+/* Interpret the 'relative mode' sequences: CUU, CUD, CUF, CUB, CNL,
+ * CPL, CHA, HPR, VPA, VPR, HPA */
+static void interpret_csi_C(RoteTerm *rt, char verb,
+ int param[], int pcount) {
+ int n = (pcount && param[0] > 0) ? param[0] : 1;
+
+ switch (verb) {
+ case 'A': rt->crow -= n; break;
+ case 'B': case 'e': rt->crow += n; break;
+ case 'C': case 'a': rt->ccol += n; break;
+ case 'D': rt->ccol -= n; break;
+ case 'E': rt->crow += n; rt->ccol = 0; break;
+ case 'F': rt->crow -= n; rt->ccol = 0; break;
+ case 'G': case '`': rt->ccol = param[0] - 1; break;
+ case 'd': rt->crow = param[0] - 1; break;
+ }
+
+ rt->curpos_dirty = true;
+ clamp_cursor_to_bounds(rt);
+}
+
+/* Interpret the 'erase line' escape sequence */
+static void interpret_csi_EL(RoteTerm *rt, int param[], int pcount)
+{
+ int erase_start, erase_end, i;
+ int cmd = pcount ? param[0] : 0;
+
+ switch (cmd) {
+ case 1: erase_start = 0; erase_end = rt->ccol; break;
+ case 2: erase_start = 0; erase_end = rt->cols - 1; break;
+ default: erase_start = rt->ccol; erase_end = rt->cols - 1; break;
+ }
+
+ for (i = erase_start; i <= erase_end; i++) {
+ rt->cells[rt->crow][i].ch = 0x20;
+ rt->cells[rt->crow][i].attr = rt->curattr;
+ }
+
+ rt->line_dirty[rt->crow] = true;
+}
+
+/* Interpret the 'insert blanks' sequence (ICH) */
+static void interpret_csi_ICH(RoteTerm *rt, int param[], int pcount)
+{
+ int n = (pcount && param[0] > 0) ? param[0] : 1;
+ int i;
+ for (i = rt->cols - 1; i >= rt->ccol + n; i--)
+ rt->cells[rt->crow][i] = rt->cells[rt->crow][i - n];
+ for (i = rt->ccol; i < rt->ccol + n; i++) {
+ rt->cells[rt->crow][i].ch = 0x20;
+ rt->cells[rt->crow][i].attr = rt->curattr;
+ }
+
+ rt->line_dirty[rt->crow] = true;
+}
+
+/* Interpret the 'delete chars' sequence (DCH) */
+static void interpret_csi_DCH(RoteTerm *rt, int param[], int pcount)
+{
+ int n = (pcount && param[0] > 0) ? param[0] : 1;
+ int i;
+ for (i = rt->ccol; i < rt->cols; i++) {
+ if (i + n < rt->cols)
+ rt->cells[rt->crow][i] = rt->cells[rt->crow][i + n];
+ else {
+ rt->cells[rt->crow][i].ch = 0x20;
+ rt->cells[rt->crow][i].attr = rt->curattr;
+ }
+ }
+
+ rt->line_dirty[rt->crow] = true;
+}
+
+/* Interpret an 'insert line' sequence (IL) */
+static void interpret_csi_IL(RoteTerm *rt, int param[], int pcount)
+{
+ int n = (pcount && param[0] > 0) ? param[0] : 1;
+ int i, j;
+
+ for (i = rt->pd->scrollbottom; i >= rt->crow + n; i--)
+ memcpy(rt->cells[i], rt->cells[i - n], sizeof(RoteCell) * rt->cols);
+
+ for (i = rt->crow; i < rt->crow + n && i <= rt->pd->scrollbottom; i++) {
+ rt->line_dirty[i] = true;
+ for (j = 0; j < rt->cols; j++)
+ rt->cells[i][j].ch = 0x20, rt->cells[i][j].attr = rt->curattr;
+ }
+
+}
+
+/* Interpret a 'delete line' sequence (DL) */
+static void interpret_csi_DL(RoteTerm *rt, int param[], int pcount)
+{
+ int n = (pcount && param[0] > 0) ? param[0] : 1;
+ int i, j;
+
+ for (i = rt->crow; i <= rt->pd->scrollbottom; i++) {
+ rt->line_dirty[i] = true;
+ if (i + n <= rt->pd->scrollbottom)
+ memcpy(rt->cells[i], rt->cells[i+n], sizeof(RoteCell) * rt->cols);
+ else {
+ for (j = 0; j < rt->cols; j++)
+ rt->cells[i][j].ch = 0x20, rt->cells[i][j].attr = rt->curattr;
+ }
+ }
+}
+
+/* Interpret an 'erase characters' (ECH) sequence */
+static void interpret_csi_ECH(RoteTerm *rt, int param[], int pcount)
+{
+ int n = (pcount && param[0] > 0) ? param[0] : 1;
+ int i;
+
+ for (i = rt->ccol; i < rt->ccol + n && i < rt->cols; i++) {
+ rt->cells[rt->crow][i].ch = 0x20;
+ rt->cells[rt->crow][i].attr = rt->curattr;
+ }
+
+ rt->line_dirty[rt->crow] = true;
+}
+
+/* Interpret a 'set scrolling region' (DECSTBM) sequence */
+static void interpret_csi_DECSTBM(RoteTerm *rt, int param[], int pcount)
+{
+ int newtop, newbottom;
+
+ if (!pcount) {
+ newtop = 0;
+ newbottom = rt->rows - 1;
+ }
+ else if (pcount < 2) return; /* malformed */
+ else {
+ newtop = param[0] - 1;
+ newbottom = param[1] - 1;
+ }
+
+ /* clamp to bounds */
+ if (newtop < 0) newtop = 0;
+ if (newtop >= rt->rows) newtop = rt->rows - 1;
+ if (newbottom < 0) newbottom = 0;
+ if (newbottom >= rt->rows) newbottom = rt->rows - 1;
+
+ /* check for range validity */
+ if (newtop > newbottom) return;
+ rt->pd->scrolltop = newtop;
+ rt->pd->scrollbottom = newbottom;
+}
+
+static void interpret_csi_SAVECUR(RoteTerm *rt, int param[], int pcount)
+{
+ rt->pd->saved_x = rt->ccol;
+ rt->pd->saved_y = rt->crow;
+}
+
+static void interpret_csi_RESTORECUR(RoteTerm *rt, int param[], int pcount)
+{
+ rt->ccol = rt->pd->saved_x;
+ rt->crow = rt->pd->saved_y;
+ rt->curpos_dirty = true;
+}
+
+void rote_es_interpret_csi(RoteTerm *rt)
+{
+ static int csiparam[MAX_CSI_ES_PARAMS];
+ int param_count = 0;
+ const char *p = rt->pd->esbuf + 1;
+ char verb = rt->pd->esbuf[rt->pd->esbuf_len - 1];
+
+ if (!strncmp(rt->pd->esbuf, "[?", 2)) { /* private-mode CSI, ignore */
+#ifdef DEBUG
+ fprintf(stderr, "Ignoring private-mode CSI: <%s>\n", rt->pd->esbuf);
+#endif
+ return;
+ }
+
+ /* parse numeric parameters */
+ while ((*p >= '0' && *p <= '9') || *p == ';') {
+ if (*p == ';') {
+ if (param_count >= MAX_CSI_ES_PARAMS) return; /* too long! */
+ csiparam[param_count++] = 0;
+ }
+ else {
+ if (param_count == 0) csiparam[param_count++] = 0;
+ csiparam[param_count - 1] *= 10;
+ csiparam[param_count - 1] += *p - '0';
+ }
+
+ p++;
+ }
+
+ /* delegate handling depending on command character (verb) */
+ switch (verb) {
+ case 'h':
+ if (param_count == 1 && csiparam[0] == 4) /* insert mode */
+ rt->insert = true;
+ break;
+ case 'l':
+ if (param_count == 1 && csiparam[0] == 4) /* replace mode */
+ rt->insert = false;
+ break;
+ case 'm': /* it's a 'set attribute' sequence */
+ interpret_csi_SGR(rt, csiparam, param_count); break;
+ case 'J': /* it's an 'erase display' sequence */
+ interpret_csi_ED(rt, csiparam, param_count); break;
+ case 'H': case 'f': /* it's a 'move cursor' sequence */
+ interpret_csi_CUP(rt, csiparam, param_count); break;
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
+ case 'e': case 'a': case 'd': case '`':
+ /* it is a 'relative move' */
+ interpret_csi_C(rt, verb, csiparam, param_count); break;
+ case 'K': /* erase line */
+ interpret_csi_EL(rt, csiparam, param_count); break;
+ case '@': /* insert characters */
+ interpret_csi_ICH(rt, csiparam, param_count); break;
+ case 'P': /* delete characters */
+ interpret_csi_DCH(rt, csiparam, param_count); break;
+ case 'L': /* insert lines */
+ interpret_csi_IL(rt, csiparam, param_count); break;
+ case 'M': /* delete lines */
+ interpret_csi_DL(rt, csiparam, param_count); break;
+ case 'X': /* erase chars */
+ interpret_csi_ECH(rt, csiparam, param_count); break;
+ case 'r': /* set scrolling region */
+ interpret_csi_DECSTBM(rt, csiparam, param_count); break;
+ case 's': /* save cursor location */
+ interpret_csi_SAVECUR(rt, csiparam, param_count); break;
+ case 'u': /* restore cursor location */
+ interpret_csi_RESTORECUR(rt, csiparam, param_count); break;
+ default:
+#ifdef DEBUG
+ fprintf(stderr, "Unrecogized CSI: verb=%c <%s>\n",
+ verb, rt->pd->esbuf);
+#endif
+ break;
+ }
+}
+
projects / apps / madtty.git / blobdiff