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liberty-xui: add transposition to the line editor
Alpine 3.24 Success
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OpenBSD 7.8 Success
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Přemysl Eric Janouch
2026-08-10 13:09:10 +02:00
parent 8fdb6c702d
commit bb75c8e4fa
1 changed files with 18 additions and 0 deletions
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liberty-xui.c
+18
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@@ -157,6 +157,7 @@ enum line_editor_action
LINE_EDITOR_HOME, ///< Go to start of line
LINE_EDITOR_END, ///< Go to end of line
LINE_EDITOR_TRANSPOSE_CHARS, ///< Transpose characters
LINE_EDITOR_UPCASE_WORD, ///< Convert word to uppercase
LINE_EDITOR_DOWNCASE_WORD, ///< Convert word to lowercase
LINE_EDITOR_CAPITALIZE_WORD, ///< Capitalize word
@@ -310,6 +311,23 @@ line_editor_action (struct line_editor *self, enum line_editor_action action)
self->point = self->len;
return true;
case LINE_EDITOR_TRANSPOSE_CHARS:
{
// TODO(p): We should swap full characters rather than codepoints.
if (self->point < 1 || self->len < 2)
return false;
if (self->point == (int) self->len)
self->point--;
uint32_t cp = self->line[self->point];
int width = self->w [self->point];
self->line[self->point] = self->line[self->point - 1];
self->w [self->point] = self->w [self->point - 1];
self->line[self->point - 1] = cp;
self->w [self->point - 1] = width;
self->point++;
return true;
}
case LINE_EDITOR_UPCASE_WORD:
{
int i = self->point;