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http://www.openoffice.org/issues/show_bug.cgi?id=100953
Issue #|100953
Summary|Basic macro functions: StrConv, LeftB, LenB, MidB, and
| RightB
Component|scripting
Version|DEV300m41
Platform|All
URL|
OS/Version|All
Status|NEW
Status whiteboard|
Keywords|
Resolution|
Issue type|PATCH
Priority|P3
Subcomponent|code
Assigned to|kr
Reported by|tora
------- Additional comments from t...@openoffice.org Wed Apr 8 12:35:32 +0000
2009 -------
This is an experimental implementation of OpenOffice.org/StarOffice Basic macro
functions:
- StrConv
- LeftB
- LenB
- MidB
- RightB
Algorithm
To share algorithms of the existing Unicode string functions - Left, Len, Mid,
and Right - with corresponding byte string functions - LeftB, LenB, MidB, and
RightB -, this implementation employs C++ templates. That is, one algorithm is
used by both String and ByteString classes.
Code conversion
Conversion between Unicode string and byte string is implemented in the
StrConv
function. It can take either Unicode and byte strings, convert it, and return
converted string.
Todo: A type of character encoding is automatically determined with the
operating system's default encoding.
E.g. It would be
- CodePage 932 on Windows Japanese
- UTF-8 on Solaris/Linux with LANG=en_US.UTF-8
There might be demands to allow macro programmers to explicitly specify
a type of character encoding.
Calculation
Concatenation and comparison of byte strings are also implemented.
An attempt of concatenating or comparing a Unicode string with byte one is
resulted in an error.
Implicit type conversion
Implicit type conversion from byte string to Unicode string and vice versa is
also implemented. The byte order is tuned for x86/x64 processors.
Implicit type conversion from byte string to one of the basic types such as
integer, and versa is also preliminarily implemented. It converts a byte
string
into Unicode string first and then utilizes a type conversion method from
Unicode
string to the basic type.
Todo: All possible combinations of original type and destination type are not
covered yet. The rest of the combinations should be implemented, if needed.
References
issue 85036
http://l10n.openoffice.org/servlets/BrowseList?list=dev&by=thread&from=2205928
http://msdn.microsoft.com/en-us/library/aa263373(VS.60).aspx
http://msdn.microsoft.com/en-us/library/aa286591(office.10).aspx
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