termptyesc: correctly handle DECOM
also fix regions with only one argument
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6ce96da8c4
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@ -136,7 +136,7 @@ struct _Termpty
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unsigned char chset[4];
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int top_margin, bottom_margin;
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int had_cr_x, had_cr_y;
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int margin_top; // soon, more to come...
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unsigned int restrict_cursor : 1;
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unsigned int multibyte : 1;
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unsigned int alt_kp : 1;
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unsigned int insert : 1;
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@ -254,15 +254,19 @@ _handle_esc_csi_reset_mode(Termpty *ty, Eina_Unicode cc, Eina_Unicode *b)
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ty->termstate.reverse = mode;
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break;
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case 6:
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/* DECOM */
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if (mode)
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{
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ty->termstate.margin_top = ty->cursor_state.cy;
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/* set, within margins */
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ty->termstate.restrict_cursor = 1;
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ty->cursor_state.cx = 0;
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ty->cursor_state.cy = ty->termstate.top_margin;
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}
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else
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{
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ty->termstate.restrict_cursor = 0;
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ty->cursor_state.cx = 0;
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ty->termstate.margin_top = 0;
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ty->cursor_state.cy = 0;
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}
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DBG("origin mode (%d): cursor is at 0,0"
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" cursor limited to screen/start point"
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@ -782,14 +786,19 @@ _handle_esc_csi(Termpty *ty, const Eina_Unicode *c, Eina_Unicode *ce)
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TERMPTY_RESTRICT_FIELD(ty->cursor_state.cx, 0, ty->w);
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}
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break;
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case 'A': // cursor up N
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case 'e': // cursor up N
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case 'A': // cursor up N CUU
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case 'e': // cursor up N, VPR
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arg = _csi_arg_get(&b);
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if (arg < 1) arg = 1;
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DBG("cursor up %d", arg);
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ty->termstate.wrapnext = 0;
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ty->cursor_state.cy = MAX(0, ty->cursor_state.cy - arg);
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TERMPTY_RESTRICT_FIELD(ty->cursor_state.cy, 0, ty->h);
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if (ty->termstate.restrict_cursor && (ty->termstate.top_margin != 0)
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&& (ty->cursor_state.cy < ty->termstate.top_margin))
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{
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ty->cursor_state.cy = ty->termstate.top_margin;
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}
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break;
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case 'B': // cursor down N
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arg = _csi_arg_get(&b);
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@ -798,6 +807,11 @@ _handle_esc_csi(Termpty *ty, const Eina_Unicode *c, Eina_Unicode *ce)
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ty->termstate.wrapnext = 0;
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ty->cursor_state.cy = MIN(ty->h - 1, ty->cursor_state.cy + arg);
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TERMPTY_RESTRICT_FIELD(ty->cursor_state.cy, 0, ty->h);
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if (ty->termstate.restrict_cursor && (ty->termstate.bottom_margin != 0)
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&& (ty->cursor_state.cy > ty->termstate.bottom_margin))
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{
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ty->cursor_state.cy = ty->termstate.bottom_margin;
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}
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break;
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case 'D': // cursor left N
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arg = _csi_arg_get(&b);
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@ -834,7 +848,6 @@ _handle_esc_csi(Termpty *ty, const Eina_Unicode *c, Eina_Unicode *ce)
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if (b)
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{
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ty->cursor_state.cy = arg;
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TERMPTY_RESTRICT_FIELD(ty->cursor_state.cy, 0, ty->h);
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arg = _csi_arg_get(&b);
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if (arg < 1) arg = 1;
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arg--;
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@ -845,10 +858,10 @@ _handle_esc_csi(Termpty *ty, const Eina_Unicode *c, Eina_Unicode *ce)
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if (b)
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{
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ty->cursor_state.cx = arg;
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}
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}
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TERMPTY_RESTRICT_FIELD(ty->cursor_state.cx, 0, ty->w);
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}
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}
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ty->cursor_state.cy += ty->termstate.margin_top;
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ty->cursor_state.cy += ty->termstate.top_margin;
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TERMPTY_RESTRICT_FIELD(ty->cursor_state.cy, 0, ty->h);
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break;
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case 'G': // to column N
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@ -1061,8 +1074,8 @@ _handle_esc_csi(Termpty *ty, const Eina_Unicode *c, Eina_Unicode *ce)
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arg2 = _csi_arg_get(&b);
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if (!b)
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{
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WRN("failed to give 2 regions args reset region");
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ty->termstate.top_margin = 0;
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TERMPTY_RESTRICT_FIELD(arg, 1, ty->h);
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ty->termstate.top_margin = arg - 1;
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ty->termstate.bottom_margin = 0;
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}
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else
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@ -1084,6 +1097,9 @@ _handle_esc_csi(Termpty *ty, const Eina_Unicode *c, Eina_Unicode *ce)
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ty->termstate.bottom_margin = 0;
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}
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}
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ty->cursor_state.cx = 0;
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ty->cursor_state.cy = (ty->termstate.restrict_cursor) ?
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ty->termstate.top_margin : 0;
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}
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break;
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case 's': // store cursor pos
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