forked from enlightenment/terminology
Do not let CUU and CUD scroll off screen.
Summary: ISO 6429 is a bit vague here but I don't think that the cursor should be let go off screen. Test Plan: terminology -g80x30, vttest, 1 -> test failed Reviewers: billiob Reviewed By: billiob Differential Revision: https://phab.enlightenment.org/D409
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@ -378,25 +378,19 @@ _handle_esc_csi(Termpty *ty, const Eina_Unicode *c, Eina_Unicode *ce)
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case 'A': // cursor up N
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case 'A': // cursor up N
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case 'e': // cursor up N
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case 'e': // cursor up N
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arg = _csi_arg_get(&b);
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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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DBG("cursor up %d", arg);
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ty->state.wrapnext = 0;
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ty->state.wrapnext = 0;
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for (i = 0; i < arg; i++)
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ty->state.cy -= arg;
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{
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ty->state.cy = MAX(0, ty->state.cy);
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ty->state.cy--;
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ty->state.cy = MIN(ty->h - 1, ty->state.cy);
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_termpty_text_scroll_rev_test(ty, EINA_FALSE);
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}
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break;
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break;
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case 'B': // cursor down N
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case 'B': // cursor down N
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arg = _csi_arg_get(&b);
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arg = _csi_arg_get(&b);
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if (arg < 1) arg = 1;
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DBG("cursor down %d", arg);
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DBG("cursor down %d", arg);
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ty->state.wrapnext = 0;
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ty->state.wrapnext = 0;
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for (i = 0; i < arg; i++)
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ty->state.cy += arg;
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{
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ty->state.cy = MAX(0, ty->state.cy);
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ty->state.cy++;
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ty->state.cy = MIN(ty->h - 1, ty->state.cy);
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_termpty_text_scroll_test(ty, EINA_FALSE);
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}
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break;
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break;
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case 'D': // cursor left N
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case 'D': // cursor left N
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arg = _csi_arg_get(&b);
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arg = _csi_arg_get(&b);
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