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Implement M-u, M-l, M-c from Readline

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Přemysl Eric Janouch
2022-09-18 04:24:58 +02:00
parent d8e0d1b2fe
commit b6dd940720
3 changed files with 55 additions and 1 deletions
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41
line-editor.c
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@@ -1,7 +1,7 @@
/*
* line-editor.c: a line editor component for the TUI part of liberty
*
* Copyright (c) 2017 - 2018, Přemysl Eric Janouch <p@janouch.name>
* Copyright (c) 2017 - 2022, Přemysl Eric Janouch <p@janouch.name>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted.
@@ -48,6 +48,10 @@ enum line_editor_action
LINE_EDITOR_HOME, ///< Go to start of line
LINE_EDITOR_END, ///< Go to end of line
LINE_EDITOR_UPCASE_WORD, ///< Convert word to uppercase
LINE_EDITOR_DOWNCASE_WORD, ///< Convert word to lowercase
LINE_EDITOR_CAPITALIZE_WORD, ///< Capitalize word
LINE_EDITOR_B_DELETE, ///< Delete last character
LINE_EDITOR_F_DELETE, ///< Delete next character
LINE_EDITOR_B_KILL_WORD, ///< Delete last word
@@ -197,6 +201,41 @@ line_editor_action (struct line_editor *self, enum line_editor_action action)
self->point = self->len;
return true;
case LINE_EDITOR_UPCASE_WORD:
{
int i = self->point;
for (; i < (int) self->len && self->line[i] == ' '; i++);
for (; i < (int) self->len && self->line[i] != ' '; i++)
self->line[i] = uc_toupper (self->line[i]);
self->point = i;
line_editor_changed (self);
return true;
}
case LINE_EDITOR_DOWNCASE_WORD:
{
int i = self->point;
for (; i < (int) self->len && self->line[i] == ' '; i++);
for (; i < (int) self->len && self->line[i] != ' '; i++)
self->line[i] = uc_tolower (self->line[i]);
self->point = i;
line_editor_changed (self);
return true;
}
case LINE_EDITOR_CAPITALIZE_WORD:
{
int i = self->point;
ucs4_t (*converter) (ucs4_t) = uc_totitle;
for (; i < (int) self->len && self->line[i] == ' '; i++);
for (; i < (int) self->len && self->line[i] != ' '; i++)
{
self->line[i] = converter (self->line[i]);
converter = uc_tolower;
}
self->point = i;
line_editor_changed (self);
return true;
}
case LINE_EDITOR_B_DELETE:
{
if (self->point < 1)