diff options
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/Config.src | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/libbb/Config.src b/libbb/Config.src index 6ba256290..18a40f2ac 100644 --- a/libbb/Config.src +++ b/libbb/Config.src @@ -153,6 +153,131 @@ config FEATURE_EDITING_ASK_TERMINAL correctly, or want to save on code size (about 400 bytes), then do not turn this option on. +config LOCALE_SUPPORT + bool "Enable locale support (system needs locale for this to work)" + default n + help + Enable this if your system has locale support and you would like + busybox to support locale settings. + +config UNICODE_SUPPORT + bool "Support Unicode" + default y + help + This makes various applets aware that one byte is not + one character on screen. + + Busybox aims to eventually work correctly with Unicode displays. + Any older encodings are not guaranteed to work. + Probably by the time when busybox will be fully Unicode-clean, + other encodings will be mainly of historic interest. + +config UNICODE_USING_LOCALE + bool "Use libc routines for Unicode (else uses internal ones)" + default n + depends on UNICODE_SUPPORT && LOCALE_SUPPORT + help + With this option on, Unicode support is implemented using libc + routines. Otherwise, internal implementation is used. + Internal implementation is smaller. + +config FEATURE_CHECK_UNICODE_IN_ENV + bool "Check $LC_ALL, $LC_CTYPE and $LANG environment variables" + default n + depends on UNICODE_SUPPORT && !UNICODE_USING_LOCALE + help + With this option on, Unicode support is activated + only if locale-related variables have the value of the form + "xxxx.utf8" + + Otherwise, Unicode support will be always enabled and active. + +config SUBST_WCHAR + int "Character code to substitute unprintable characters with" + depends on UNICODE_SUPPORT + default 63 + help + Typical values are 63 for '?' (works with any output device), + 30 for ASCII substitute control code, + 65533 (0xfffd) for Unicode replacement character. + +config LAST_SUPPORTED_WCHAR + int "Range of supported Unicode characters" + depends on UNICODE_SUPPORT + default 767 + help + Any character with Unicode value bigger than this is assumed + to be non-printable on output device. Many applets replace + such characters with substitution character. + + The idea is that many valid printable Unicode chars + nevertheless are not displayed correctly. Think about + combining charachers, double-wide hieroglyphs, obscure + characters in dozens of ancient scripts... + Many terminals, terminal emulators, xterms etc will fail + to handle them correctly. Choose the smallest value + which suits your needs. + + Typical values are: + 126 - ASCII only + 767 (0x2ff) - there are no combining chars in [0..767] range + (the range includes Latin 1, Latin Ext. A and B), + code is ~700 bytes smaller for this case. + 4351 (0x10ff) - there are no double-wide chars in [0..4351] range, + code is ~300 bytes smaller for this case. + 12799 (0x31ff) - nearly all non-ideographic characters are + available in [0..12799] range, including + East Asian scripts like katakana, hiragana, hangul, + bopomofo... + 0 - off, any valid printable Unicode character will be printed. + +config UNICODE_COMBINING_WCHARS + bool "Allow zero-width Unicode characters on output" + default n + depends on UNICODE_SUPPORT + help + With this option off, any Unicode char with width of 0 + is substituted on output. + +config UNICODE_WIDE_WCHARS + bool "Allow wide Unicode characters on output" + default n + depends on UNICODE_SUPPORT + help + With this option off, any Unicode char with width > 1 + is substituted on output. + +config UNICODE_BIDI_SUPPORT + bool "Bidirectional character-aware line input" + default n + depends on UNICODE_SUPPORT && !UNICODE_USING_LOCALE + help + With this option on, right-to-left Unicode characters + are treated differently on input (e.g. cursor movement). + +config UNICODE_NEUTRAL_TABLE + bool "In bidi input, support non-ASCII neutral chars too" + default n + depends on UNICODE_BIDI_SUPPORT + help + In most cases it's enough to treat only ASCII non-letters + (i.e. punctuation, numbers and space) as characters + with neutral directionality. + With this option on, more extensive (and bigger) table + of neutral chars will be used. + +config UNICODE_PRESERVE_BROKEN + bool "Make it possible to enter sequences of chars which are not Unicode" + default n + depends on UNICODE_SUPPORT + help + With this option on, on line-editing input (such as used by shells) + invalid UTF-8 bytes are not substituted with the selected + substitution character. + For example, this means that entering 'l', 's', ' ', 0xff, [Enter] + at shell prompt will list file named 0xff (single char name + with char value 255), not file named '?'. + config FEATURE_NON_POSIX_CP bool "Non-POSIX, but safer, copying to special nodes" default y @@ -177,6 +302,19 @@ config FEATURE_VERBOSE_CP_MESSAGE cp: cannot stat '/vmlinuz/file': Not a directory This will cost you ~60 bytes. +config FEATURE_USE_SENDFILE + bool "Use sendfile system call" + default y + select PLATFORM_LINUX + help + When enabled, busybox will use the kernel sendfile() function + instead of read/write loops to copy data between file descriptors + (for example, cp command does this a lot). + If sendfile() doesn't work, copying code falls back to read/write + loop. sendfile() was originally implemented for faster I/O + from files to sockets, but since Linux 2.6.33 it was extended + to work for many more file types. + config FEATURE_COPYBUF_KB int "Copy buffer size, in kilobytes" range 1 1024 |