Unicode support.

1 files changed, 61 insertions, 0 deletions

diff --git a/unicode-todo.txt b/unicode-todo.txt
new file mode 100644
index 0000000000..be454b81f0
--- /dev/null
+++ b/unicode-todo.txt
@@ -0,0 +1,61 @@
+* unicode in `..`?
+
+* EBCDIC support?
+
+* Discuss putting ZEND_ATTRIBUTE_FORMAT back on zend_error() or create a new
+  zend_error_ex() function that supports new specifiers
+
+* Finalize zend_hash_get_current_key_ex() discussion. We probably need to
+  have zend_u_hash_get_current_key_ex() and have the old function proxy to it.
+  The question is what happens when an IS_UNICODE key is present and the old
+  function is called.
+
+* use zend_literal_to_unicode when comparing "this" and such
+
+* fix string offset operator to work only on strings, and array offset one
+  to work only on arrays
+
+* Should we apply identifier validity checks in functions that deal with
+  identifiers, such as define(), get_class(), etc?
+
+* Resolve the differences in %G output format. sprintf() removes trailing
+  zeroes from the fractional part, and u_sprintf() doesn't.
+
+* Determine how to deal with filesystem and filenames when Unicode is
+  involved. This concerns both the extension functions and things like
+  compile_file(), open_file_for_scanning(), etc.
+
+* Use U_STRING_DECL/U_STRING/INIT for initializing literals possibly.
+
+* Measure performance difference when doing quickCheck + normalize versus
+  simple normalize.
+
+* Find all instances where unicode strings are compare with memcmp() and
+  replace either with u_memcmpCodePointOrder() or ucol_strcoll()
+
+* Opening a collator may return U_USING_DEFAULT_WARNING,
+  U_USING_FALLBACK_WARNING
+
+* Need to make http input work as described in the design doc.
+
+* Solve ZTS issues. Some extensions store pointers to internal 
+  zend_class_entries during extension startup, but these pointers can be changed
+  from request to request (dependent on "unicode" setting). Right now these
+  pointers are reinitialized during request startup but they are still stored
+  in real global variables. Probably the problem should be solved in other way
+  or pinters to zend_class_entries should be stored in module globals.
+
+* output.c needs a lot of work as it passes char* around
+
+* Require and/or bundle ICU 3.4.
+
+* Right now if a function passes "TT" to zend_parse_parameters(), and one of
+  the arguments is IS_BINARY, then all of the rest of T arguments are
+  converted to IS_BINARY as well. I will modify it so that if one of the other
+  arguments is IS_UNICODE then we generate an error and abort parsing. If we
+  do run across a function that really needs to accept IS_BINARY as one
+  argument and IS_UNICODE as another, then we can use "bu" for the parsing
+  format.
+
+* Comparison operators should act similar to concatenation one, check the
+  types and coerce when necessary.