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Unicode strings: Difference between revisions
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[[File:Unicode print locomotive basic.png]]
=={{header|M2000 Interpreter}}==
* How easy is it to present Unicode strings in source code?
We copy them in M2000 editor. Internal M2000 use UTF16LE but programs saved in UTF-8 format.
* Can Unicode literals be written directly, or be part of identifiers/keywords/etc?
Yes
* How well can the language communicate with the rest of the world?
GUI support unicode. We can use filenames with names from any language. Text files are UTF-16LE or Ansi (we can use WIDE for specify UNICODE, also we can specify the locale for ANSI), and we can load/Save Document object using UTF-8, UTF-16LE, UTF-16BE and ANSI (we can specify the locale). Clipboard is unicode also.
* Is it good at input/output with Unicode?
If we use proportional text we are ok, byt simple text output/input to console break each word to letter and then send it to console, so we get always a left to right output. We can use diacritical marks combining to same letter.
* Is it convenient to manipulate Unicode strings in the language?
Strings are same as Visual Basic 6 strings (M2000 Interpreter written in VB6). We can get the length of a string as display length wich calculate diacritical marks.
* How broad/deep does the language support Unicode?
From variables/keys to files and screen/printer output. Also we can use external COM objects using unicode strings,
* What encodings (e.g. UTF-8, UTF-16, etc) can be used?
A string may contain a one byte char array or a two byte char array. The Len() function always return the two byte length, so 3 bytes string return a length of 1.5. Encoding is not bound to string but with function which process the string. So there are functions to process in UTF-16LE, other to process in ANSI, and one function for conversions from and to UTF-8. UTF-16BE supported only for loading/Saving a document object (internal is always in UTF16-LE)
* Does it support normalization?
No. A string may contain any value including zero. Max size is 2GB. Also we can make strings in buffers with specific length, and any value.
<lang M2000 Interpreter>
Font "Arial"
Mode 32
' M2000 internal editor can display left to rigtht languages if text is in same line, and same color.
a$="لم أجد هذا الكتاب القديم"
' We can use console to display text, using proportional spacing
Print Part $(4), a$
Print
' We can display right to left using
' the legend statement which render text at a given
' graphic point, specify the font type and font size
' and optional:
' rotation angle, justification (1 for right,2 for center, 3 for left)
'quality (0 or non 0, which 0 no antialliasing)
' letter spacing in twips (not good for arabic language)
move 6000,6000
legend a$, "Arial", 32, pi/4, 2, 0
' Variables can use any unicode letter.
' Here we can't display it as in M2000 editor.
' in the editor we see at the left the variable name
' and at the right the value
القديم=10
Print القديم+1=11 ' true
</lang>
=={{header|Mathematica}}==
Mathematica supports full Unicode throughout -- in strings, symbols, graphics and external operations -- allowing immediate streamlined use of all standard international character sets, integrated with native text entry.
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