Rewrite of IBM doublebyte charsets
Ulf.Zibis at gmx.de
Tue May 19 10:02:51 UTC 2009
Am 19.05.2009 09:19, Xueming Shen schrieb:
> I will try the b2c[0x100] idea to see the
> performance...I actually tried b2cIndex[0x100] + b2c, which did not
> bring me the performance
> I expected, but that was a long time ago, so this time might be
Even if there is no performance gain, the code will become more
readable, and initC2B becomes more simple.
Additionally, when doing research on the generated source files (e.g.
visual diff between different charsets), interpretation of the data
becomes much more simple, as there would be exactly 1 String element for
1 mapping segment, always starting at it's b2Min value as first left
value of each chunk.
With that help, if would be easy to discover similar mapping for later
tuning regarding sharing maps partly. :-)
Don't forget to try
char c = b2cStr[byte1].charAt(byte2);
String b2cStr = new String[0x100];
, to avoid copying String to char.
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