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vt: document correct BS behavior, and why we do differently

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Daniel Eklöf 2021-01-15 18:40:07 +01:00
parent c0a3f89775
commit bc053e4879
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1 changed files with 12 additions and 0 deletions
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vt.c
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@ -129,10 +129,22 @@ action_execute(struct terminal *term, uint8_t c)
case '\b':
/* backspace */
#if 0
/*
* This is the “correct” BS behavior. However, it doesn’t play
* nicely with bw/auto_left_margin, hence the alternative
* implementation below.
*
* Note that it breaks vttest “1. Test of cursor movements ->
* Test of autowrap”
*/
term_cursor_left(term, 1);
#else
if (term->grid->cursor.lcf)
term->grid->cursor.lcf = false;
else
term_cursor_left(term, 1);
#endif
break;
case '\t': {