Chapter 12. Softwares Written in Other than C/C++

92

12.4 Python

***** Not written yet *****

12.5 Ruby

***** Not written yet *****

12.6 Tcl/Tk

***** Not written yet *****

Tcl/Tk is already internationalized. It is locale sensible. It automatically uses proper font for

various characters. Though it uses UTF 8 as internal encoding, users of Tcl/Tk don't have to

aware of it. This is because Tcl/Tk converts encodings.

12.7 Java

Full internationalization is naturally lead from Java's  Write Once, Run Anywhere  principle. To

achieve this, Java uses Unicode as internal code for

char

and

String

. It is important that Unicode

is internal code. Java obeys the current LOCALE and encoding is automatically converted for I/O.

Thus, users of applications written in Java doesn't need to be aware of Unicode.

Then how about developers? They also don't need to be aware of the internal encoding. Character

processings such as counting of number of characers in a string work well. And more, you don't

have to worry about display/input.

However, you may want to handle specified encodings for, for example, MIME encoding/decoding.

For such purposes, I/O can be done by specifying external encoding. Check

InputStreamReader

and

OutputStreamReader

classes. You can also convert between the internal encoding and

specified encodings by

String.getBytes(

encoding

)

and

String(byte []

bytes

,

encoding

)

.

12.8 Shell Script

***** Not written yet *****