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make Ctrl+w in xreadline similar to readline's

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when there's multiple spaces, the previous logic didn't erase
them, e.g:

    a word   |   < before
    a word  |    < after Ctrl-w

this patch brings the behavior closer to readline's:

    a word   |   < before
    a |          < after Ctrl-w

this also slightly changes the behavior since '/' is no longer
considered a boundary.
This commit is contained in:
NRK 2024-12-16 14:45:37 +00:00
parent d6b1b80e40
commit 942afdf445
1 changed files with 8 additions and 7 deletions
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15
src/nnn.c
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@ -180,6 +180,7 @@
#define MAX(x, y) ((x) > (y) ? (x) : (y))
#define ISODD(x) ((x) & 1)
#define ISBLANK(x) ((x) == ' ' || (x) == '\t')
#define ISSPACE(x) (ISBLANK(x) || (x) == '\n' || (x) == '\r' || (x) == '\f' || (x) == '\v')
#define TOUPPER(ch) (((ch) >= 'a' && (ch) <= 'z') ? ((ch) - 'a' + 'A') : (ch))
#define TOLOWER(ch) (((ch) >= 'A' && (ch) <= 'Z') ? ((ch) - 'A' + 'a') : (ch))
#define ISUPPER_(ch) ((ch) >= 'A' && (ch) <= 'Z')
@ -3717,13 +3718,13 @@ static char *xreadline(const char *prefill, const char *prompt)
continue;
case CONTROL('W'):
printmsg(prompt);
do {
if (pos == 0)
break;
memmove(buf + pos - 1, buf + pos,
(len - pos) * WCHAR_T_WIDTH);
--pos, --len;
} while (buf[pos - 1] != ' ' && buf[pos - 1] != '/'); // NOLINT
lpos = pos;
while (pos > 0 && ISSPACE(buf[pos-1]))
--pos;
while (pos > 0 && !ISSPACE(buf[pos-1]))
--pos;
memmove(buf + pos, buf + lpos, (len - lpos) * WCHAR_T_WIDTH);
len -= lpos - pos;
continue;
case CONTROL('K'):
printmsg(prompt);