diff options
| author | Natanael Copa <ncopa@alpinelinux.org> | 2016-08-14 23:30:29 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2016-08-14 23:30:29 +0200 |
| commit | 7e6f9316a8bf3030da6c283e43aa0709d0cef259 (patch) | |
| tree | ec5f4ba877f846b6fff854e2af8507d734edb98b /libbb/lineedit.c | |
| parent | 9e5820a86277818c2f83c11c2aa76d7f0a38283e (diff) | |
| download | busybox-7e6f9316a8bf3030da6c283e43aa0709d0cef259.tar.gz | |
lineedit: trivial codeshrink for vi-mode
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>
Diffstat (limited to 'libbb/lineedit.c')
| -rw-r--r-- | libbb/lineedit.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/libbb/lineedit.c b/libbb/lineedit.c index 3e62f46b4..3bfff0084 100644 --- a/libbb/lineedit.c +++ b/libbb/lineedit.c @@ -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); } |