diff options
Diffstat (limited to 'contrib/libreadline/display.c')
-rw-r--r-- | contrib/libreadline/display.c | 49 |
1 files changed, 38 insertions, 11 deletions
diff --git a/contrib/libreadline/display.c b/contrib/libreadline/display.c index 0ff428e..ff0cf5a 100644 --- a/contrib/libreadline/display.c +++ b/contrib/libreadline/display.c @@ -201,7 +201,7 @@ expand_prompt (pmt, lp, lip, niflp, vlp) int *lp, *lip, *niflp, *vlp; { char *r, *ret, *p; - int l, rl, last, ignoring, ninvis, invfl, ind, pind, physchars; + int l, rl, last, ignoring, ninvis, invfl, invflset, ind, pind, physchars; /* Short-circuit if we can. */ if ((MB_CUR_MAX <= 1 || rl_byte_oriented) && strchr (pmt, RL_PROMPT_START_IGNORE) == 0) @@ -222,6 +222,7 @@ expand_prompt (pmt, lp, lip, niflp, vlp) r = ret = (char *)xmalloc (l + 1); invfl = 0; /* invisible chars in first line of prompt */ + invflset = 0; /* we only want to set invfl once */ for (rl = ignoring = last = ninvis = physchars = 0, p = pmt; p && *p; p++) { @@ -249,7 +250,10 @@ expand_prompt (pmt, lp, lip, niflp, vlp) while (l--) *r++ = *p++; if (!ignoring) - rl += ind - pind; + { + rl += ind - pind; + physchars += _rl_col_width (pmt, pind, ind); + } else ninvis += ind - pind; p--; /* compensate for later increment */ @@ -259,16 +263,19 @@ expand_prompt (pmt, lp, lip, niflp, vlp) { *r++ = *p; if (!ignoring) - rl++; /* visible length byte counter */ + { + rl++; /* visible length byte counter */ + physchars++; + } else ninvis++; /* invisible chars byte counter */ } - if (rl >= _rl_screenwidth) - invfl = ninvis; - - if (ignoring == 0) - physchars++; + if (invflset == 0 && rl >= _rl_screenwidth) + { + invfl = ninvis; + invflset = 1; + } } } @@ -351,14 +358,14 @@ rl_expand_prompt (prompt) local_prompt = expand_prompt (p, &prompt_visible_length, &prompt_last_invisible, (int *)NULL, - (int *)NULL); + &prompt_physical_chars); c = *t; *t = '\0'; /* The portion of the prompt string up to and including the final newline is now null-terminated. */ local_prompt_prefix = expand_prompt (prompt, &prompt_prefix_length, (int *)NULL, &prompt_invis_chars_first_line, - &prompt_physical_chars); + (int *)NULL); *t = c; return (prompt_prefix_length); } @@ -417,7 +424,7 @@ rl_redisplay () register int in, out, c, linenum, cursor_linenum; register char *line; int c_pos, inv_botlin, lb_botlin, lb_linenum; - int newlines, lpos, temp, modmark; + int newlines, lpos, temp, modmark, n0, num; char *prompt_this_line; #if defined (HANDLE_MULTIBYTE) wchar_t wc; @@ -573,6 +580,7 @@ rl_redisplay () #if defined (HANDLE_MULTIBYTE) memset (_rl_wrapped_line, 0, vis_lbsize); + num = 0; #endif /* prompt_invis_chars_first_line is the number of invisible characters in @@ -591,13 +599,32 @@ rl_redisplay () probably too much work for the benefit gained. How many people have prompts that exceed two physical lines? Additional logic fix from Edward Catmur <ed@catmur.co.uk> */ +#if defined (HANDLE_MULTIBYTE) + n0 = num; + temp = local_prompt ? strlen (local_prompt) : 0; + while (num < temp) + { + if (_rl_col_width (local_prompt, n0, num) > _rl_screenwidth) + { + num = _rl_find_prev_mbchar (local_prompt, num, MB_FIND_ANY); + break; + } + num++; + } + temp = num + +#else temp = ((newlines + 1) * _rl_screenwidth) + +#endif /* !HANDLE_MULTIBYTE */ ((local_prompt_prefix == 0) ? ((newlines == 0) ? prompt_invis_chars_first_line : ((newlines == 1) ? wrap_offset : 0)) : ((newlines == 0) ? wrap_offset :0)); inv_lbreaks[++newlines] = temp; +#if defined (HANDLE_MULTIBYTE) + lpos -= _rl_col_width (local_prompt, n0, num); +#else lpos -= _rl_screenwidth; +#endif } prompt_last_screen_line = newlines; |