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authorDenys Vlasenko2010-01-29 09:11:47 +0100
committerDenys Vlasenko2010-01-29 09:11:47 +0100
commit2edba21f4c59d071f2241c2f47021c7034ec7cb8 (patch)
tree6cf3de29bfbdafa26fddbc1cd3dc467a2d8263f6 /Config.in
parent083e172641b64c564b7ec5478197dccbde43b421 (diff)
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more fine-grained Unicode support
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'Config.in')
-rw-r--r--Config.in51
1 files changed, 51 insertions, 0 deletions
diff --git a/Config.in b/Config.in
index 8e75153..6844483 100644
--- a/Config.in
+++ b/Config.in
@@ -141,6 +141,57 @@ config FEATURE_CHECK_UNICODE_IN_ENV
Otherwise, Unicode support will be always enabled and active.
+config SUBST_WCHAR
+ int "Character code to substitute unprintable characters with"
+ range 1 4294967295
+ depends on FEATURE_ASSUME_UNICODE
+ 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"
+ range 0 4294967295
+ depends on FEATURE_ASSUME_UNICODE
+ default 767
+ help
+ Any character with Unicode value bigger than this is assumed
+ to be non-printable on output device. Many applets replace
+ such chars with substitution character.
+
+ The idea is that many valid printable Unicode chars are
+ nevertheless are not displayed correctly. Think about
+ combining charachers, double-wide hieroglyphs and such.
+ Many terminals, xterms and such will fail to handle them
+ correctly.
+
+ 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.
+ 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 FEATURE_ASSUME_UNICODE
+ 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 FEATURE_ASSUME_UNICODE
+ help
+ With this option off, any Unicode char with width > 1
+ is substituted on output.
+
config LONG_OPTS
bool "Support for --long-options"
default y