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@ -262,7 +262,7 @@ static void tinsertblankline(int);
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static void tmoveto(int, int);
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static void tnew(int, int);
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static void tnewline(int);
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static void tputtab(void);
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static void tputtab(bool);
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static void tputc(char*);
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static void treset(void);
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static int tresize(int, int);
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@ -1243,7 +1243,7 @@ csihandle(void) {
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case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
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DEFAULT(csiescseq.arg[0], 1);
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while (csiescseq.arg[0]--)
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tputtab();
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tputtab(1);
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break;
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case 'J': /* ED -- Clear screen */
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sel.bx = -1;
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@ -1356,7 +1356,11 @@ csihandle(void) {
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DEFAULT(csiescseq.arg[0], 1);
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tdeletechar(csiescseq.arg[0]);
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break;
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/* XXX: (CSI n Z) CBT -- Cursor Backward Tabulation <n> tab stops */
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case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
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DEFAULT(csiescseq.arg[0], 1);
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while (csiescseq.arg[0]--)
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tputtab(0);
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break;
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case 'd': /* VPA -- Move to <row> */
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DEFAULT(csiescseq.arg[0], 1);
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tmoveto(term.c.x, csiescseq.arg[0]-1);
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@ -1528,11 +1532,20 @@ strreset(void) {
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}
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void
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tputtab(void) {
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unsigned x;
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tputtab(bool forward) {
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unsigned x = term.c.x;
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for (x = term.c.x + 1; x < term.col && !term.tabs[x]; ++x)
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if (forward) {
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if (x == term.col)
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return;
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for (++x; x < term.col && !term.tabs[x]; ++x)
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/* nothing */ ;
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} else {
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if (x == 0)
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return;
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for (--x; x > 0 && !term.tabs[x]; --x)
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/* nothing */ ;
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}
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tmoveto(x, term.c.y);
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}
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@ -1650,7 +1663,7 @@ tputc(char *c) {
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sel.bx = -1;
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switch(ascii) {
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case '\t':
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tputtab();
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tputtab(1);
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break;
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case '\b':
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tmoveto(term.c.x-1, term.c.y);
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