Jonas Maebe schrieb:
On 26/11/14 21:25, Hans-Peter Diettrich wrote:
What about file I/O?
It should be possible to read (and write) files of either endianness.
Standard I/O only supports single byte code pages (which should be
documented).
Please clarify "single byte code pages".
SBCS are a subset of the ANSI/ISO codepages, with the complement being MBCS.
Did you mean that basic I/O is implemented for AnsiString (byte based)
only, not for UnicodeString (word based)?
Reading a unicodestring from a text file converts from the
single byte code page to the native-endianess UTF-16 format.
Is this different from assigning an AnsiString to an UnicodeString?
While it certainly is a stupid (Microsoft) idea to use UTF-16 for file
storage, we'll have to take that into account.
Just with file I/O it makes sense to allow for *all* encodings (see
BOM), including UTF-16. The file encoding must be independent from the
string type and encoding, used to hold the file data in memory. See
Delphi TEncoding, for use with streams (TStreamReader/Writer) and TStrings.
DoDi
_______________________________________________
fpc-devel maillist - fpc-devel@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel
