EbcdicToAscii (String function): Difference between revisions
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Revision as of 05:14, 19 January 2011
Convert EBCDIC string to ASCII (String class)
This intrinsic function converts an EBCDIC string to ASCII (ISO 8859-1)
using the current Unicode tables.
Optionally, character references, entity references, and '&.amp;' references are converted to the represented ASCII character.
The EbcdicToAscii function is available as of version 7.3 of the Sirius Mods.
Syntax
%outString = string:EbcdicToAscii[( [CharacterDecode= boolean])] Throws CharacterTranslationException
Syntax terms
- %ascii
- A string variable to receive the method object string translated to Ascii.
- string
- An EBCDIC character string.
- CharacterDecode=bool
- The optional (name required) CharacterDecode argument is a Boolean:
- If its value is 'True', an ampersand (&) in the input EBCDIC string is allowed only as the beginning of one of these types of character or entity reference:
- The substring '&'. This substring is converted to a single '&' character.
- A hexadecimal character reference (for example, the six characters '' for the ASCII Device Control String control character). The character reference is converted to the referenced character.
- As of Sirius Mods version 7.6, an XHTML entity reference (for example, the six characters '©' for the copyright character). The entity reference is converted to the referenced character. A decimal character reference (for example, ¬) is not allowed.
- If its value is 'False', the default, an ampersand is treated only as a normal character.
- If its value is 'True', an ampersand (&) in the input EBCDIC string is allowed only as the beginning of one of these types of character or entity reference:
Exceptions
This intrinsic function can throw the following exception:
- CharacterTranslationException
- If the method encounters a translation problem, properties of the exception object may indicate the location and type of problem.
Usage notes
- You can find the list of XHTML entities on the Internet at the following URL:
http://www.w3.org/TR/xhtml1/dtds.html#h-A2
- There is more information about the Unicode tables.
- The inverse of the EbcdicToAscii method is AsciiToEbcdic.
Examples
The following fragment shows calls of EbcdicToAscii against a variety of EBCDIC characters. The X constant function is used in the example.
%e String Len 20 %a String Len 20 %e = '12' %a = %e:EbcdicToAscii Print %a:StringToHex %e = '1
2' %a = %e:EbcdicToAscii(CharacterDecode=True) Print %a:StringToHex %e = '©' %a = %e:EbcdicToAscii(CharacterDecode=True) Print %a:StringToHex %e = 'F1FFF2':X %a = %e:EbcdicToAscii
The result is:
3132 310A32 A9 CANCELLING REQUEST: MSIR.0751: Class STRING, function EBCDICTOASCII: CHARACTER TRANSLATIONEXCEPTION exception: EBCDIC character X'FF' without valid translation to ASCII at byte position 2 ...