path: root/TODO
diff options
authorGravatar Denys Vlasenko <vda.linux@googlemail.com>2009-09-11 23:26:42 +0200
committerGravatar Denys Vlasenko <vda.linux@googlemail.com>2009-09-11 23:26:42 +0200
commit00528822004e5763c669e58191f10c5202f679b5 (patch)
treec60a30ca27a190bb09f6d4fe3948c56e0aef3583 /TODO
parent56573cb4f7393fdb320660a5c258c72688a74f64 (diff)
top: add -m ("memory") option
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'TODO')
1 files changed, 23 insertions, 0 deletions
diff --git a/TODO b/TODO
index cd2aa0e87..136aeb7b8 100644
--- a/TODO
+++ b/TODO
@@ -320,6 +320,29 @@ vdprintf() -> similar sized functionality
Unicode work needed:
+Unicode support uses libc multibyte functions if LOCALE_SUPPORT is on
+(in this case, the code will also support many more encodings),
+or uses a limited subset of re-implemented multibyte functions
+which only understand "one byte == one char" and unicode.
+This is useful if you build against uclibc with locale support disabled.
+Unicode-dependent applets must call check_unicode_in_env() when they
+begin executing.
+Applet code may conditionalize on FEATURE_ASSUME_UNICODE
+in order to use more efficient code if unicode support is not requested.
+Available functions (if you need more, implement them in libbb/unicode.c
+so that they work without LOCALE_SUPPORT too):
+int bb_mbstrlen(str) - multibyte-aware strlen
+size_t mbstowcs(wdest, src, n)
+size_t wcstombs(dest, wsrc, n)
+size_t wcrtomb(str, wc, wstate)
+int iswspace(wc)
+int iswalnum(wc)
+int iswpunct(wc)
Applets which only need to align columns on screen correctly:
ls - already done, use source as an example