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lineedit: trivial codeshrink for vi-mode

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Introduce and use BB_isalnum_or_underscore().

function                                             old     new   delta
BB_isalnum_or_underscore                               -      43     +43
vi_word_motion                                       162     150     -12
vi_end_motion                                        163     145     -18
vi_back_motion                                       198     179     -19
BB_isalnum                                            39       -     -39
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/3 up/down: 43/-88)            Total: -45 bytes

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Natanael Copa 2016-08-14 23:30:29 +02:00 committed by Denys Vlasenko
parent 9e5820a862
commit 7e6f9316a8
1 changed files with 14 additions and 8 deletions
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22
libbb/lineedit.c
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@ -81,7 +81,9 @@
# define CHAR_T wchar_t
static bool BB_isspace(CHAR_T c) { return ((unsigned)c < 256 && isspace(c)); }
# if ENABLE_FEATURE_EDITING_VI
static bool BB_isalnum(CHAR_T c) { return ((unsigned)c < 256 && isalnum(c)); }
static bool BB_isalnum_or_underscore(CHAR_T c) {
return ((unsigned)c < 256 && isalnum(c)) || c == '_';
}
# endif
static bool BB_ispunct(CHAR_T c) { return ((unsigned)c < 256 && ispunct(c)); }
# undef isspace
@ -96,7 +98,11 @@ static bool BB_ispunct(CHAR_T c) { return ((unsigned)c < 256 && ispunct(c)); }
# define BB_NUL '\0'
# define CHAR_T char
# define BB_isspace(c) isspace(c)
# define BB_isalnum(c) isalnum(c)
# if ENABLE_FEATURE_EDITING_VI
static bool BB_isalnum_or_underscore(CHAR_T c) {
return ((unsigned)c < 256 && isalnum(c)) || c == '_';
}
# endif
# define BB_ispunct(c) ispunct(c)
#endif
#if ENABLE_UNICODE_PRESERVE_BROKEN
@ -1586,9 +1592,9 @@ vi_word_motion(int eat)
{
CHAR_T *command = command_ps;
if (BB_isalnum(command[cursor]) || command[cursor] == '_') {
if (BB_isalnum_or_underscore(command[cursor])) {
while (cursor < command_len
&& (BB_isalnum(command[cursor+1]) || command[cursor+1] == '_')
&& (BB_isalnum_or_underscore(command[cursor+1]))
) {
input_forward();
}
@ -1630,9 +1636,9 @@ vi_end_motion(void)
input_forward();
if (cursor >= command_len-1)
return;
if (BB_isalnum(command[cursor]) || command[cursor] == '_') {
if (BB_isalnum_or_underscore(command[cursor])) {
while (cursor < command_len-1
&& (BB_isalnum(command[cursor+1]) || command[cursor+1] == '_')
&& (BB_isalnum_or_underscore(command[cursor+1]))
) {
input_forward();
}
@ -1665,9 +1671,9 @@ vi_back_motion(void)
input_backward(1);
if (cursor <= 0)
return;
if (BB_isalnum(command[cursor]) || command[cursor] == '_') {
if (BB_isalnum_or_underscore(command[cursor])) {
while (cursor > 0
&& (BB_isalnum(command[cursor-1]) || command[cursor-1] == '_')
&& (BB_isalnum_or_underscore(command[cursor-1]))
) {
input_backward(1);
}