EbcdicToAscii (String function): Difference between revisions

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{{Template:String:EbcdicToAscii subtitle}}
{{Template:String:EbcdicToAscii subtitle}}


<var>EbcdicToAscii</var> is an <var>[[Intrinsic classes|intrinsic]]</var> function that converts an EBCDIC string to ASCII (ISO 8859-1) using the current <var>[[Unicode]]</var> tables. Optionally, character references, entity references, and <code>'&amp;'</code> references are converted to the represented ASCII character.
<var>EbcdicToAscii</var> is an [[Intrinsic classes|intrinsic]] function that converts an EBCDIC string to ASCII (ISO 8859-1) using the current [[Unicode#Support for the ASCII subset of Unicode|Unicode tables]]. Optionally, character references, entity references, and individual ampersand (<tt>&amp;</tt>) references are converted to the represented ASCII character.


==Syntax==
==Syntax==
{{Template:String:EbcdicToAscii syntax}}
{{Template:String:EbcdicToAscii syntax}}
===Syntax terms===
===Syntax terms===
<table class="syntaxTable">
<table class="syntaxTable">
<tr><th>%outString</th>
<tr><th>%outString</th>
<td>A string variable to receive the method object <var class="term">string</var> translated to Ascii.</td></tr>
<td>A string variable to receive the method object, <var class="term">string</var>, translated to Ascii.</td></tr>
 
<tr><th>string</th>
<tr><th>string</th>
<td>An EBCDIC character string.</td></tr>
<td>An EBCDIC character string.</td></tr>
<tr><th><var>CharacterDecode</var></th>
<tr><th><var>CharacterDecode</var></th>
<td>The optional (name required) <var class="term">CharacterDecode</var> argument is a <var>[[Boolean enumeration|Boolean]]</var> enumeration:
<td>The optional (name required) <var>CharacterDecode</var> argument is a <var>[[Boolean enumeration|Boolean]]</var> enumeration:
<ul><li>If its value is <code>True</code>, an ampersand (<code>&amp;</code>) in the input EBCDIC string is allowed <b><i>only</i></b> as the beginning of one of these types of character or entity reference:<ul><li>The substring ''''&amp;amp;amp;''''. This substring is converted to a single ''''&amp;'''' character.<li>A hexadecimal character reference (for example, the six characters <code>'&amp;amp;#x90;'</code> for the ASCII <i>Device Control String</i> character (X'90')). The character reference is converted to the referenced character.<li>As of <var class=product>Sirius Mods</var> version 7.6, an XHTML entity reference (for example, the six characters <code>'&amp;amp;copy;'</code> for the <i>copyright</i> character <code>'&amp;copy;'</code>). The entity reference is converted to the referenced character.</ul><p>A decimal character reference (for example, &amp;amp;#172;) is <b><i>not</i></b> allowed.</p><li>If its value is <code>False</code>, the default, an ampersand is treated only as a normal character.</ul></td></tr>
<ul>
<li>If its value is <code>True</code>, an ampersand (<tt>&amp;</tt>) in the input EBCDIC string is allowed <b><i>only</i></b> as the beginning of one of these types of character or entity reference:
<ul>
<li>The substring <code>&amp;amp;</code>. This substring is converted to a single <code>&amp;</code> character.
 
<li>A hexadecimal character reference (for example, the six characters <code>'&amp;#x90;'</code> for the ASCII "Device Control String" character (X'90')). The character reference is converted to the referenced character.
 
<li>As of <var class=product>Sirius Mods</var> version 7.6, an XHTML entity reference (for example, the six characters <code>&amp;copy;</code> for the <i>copyright</i> character <code>&copy;</code>). The entity reference is converted to the referenced character.
</ul>
<p>
A decimal character reference (for example, <code>&amp;#172;</code>) is <b><i>not</i></b> allowed.</p><li>If its value is <code>False</code>, the default, an ampersand is treated only as a normal character.
</ul></td></tr>
</table>
</table>


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==Examples==
==Examples==
<ol><li>The following fragment shows calls of <var>EbcdicToAscii</var> against a variety of EBCDIC characters.
The following fragment shows calls of <var>EbcdicToAscii</var> against a variety of EBCDIC characters.
The [[X (String function)|X]] constant function is used in the example.
The [[X (String function)|X]] constant function is used in the example.
<p class="code">%e string Len 20
<p class="code">%e string Len 20
Line 37: Line 51:
Print %a:StringToHex
Print %a:StringToHex


%e = '1&amp;amp;#x0A;2'
%e = '1&amp;#x0A;2'
%a = %e:EbcdicToAscii(CharacterDecode=True)
%a = %e:EbcdicToAscii(CharacterDecode=True)
Print %a:StringToHex
Print %a:StringToHex


%e = '&amp;amp;copy;'
%e = '&amp;copy;'
%a = %e:EbcdicToAscii(CharacterDecode=True)
%a = %e:EbcdicToAscii(CharacterDecode=True)
Print %a:StringToHex
Print %a:StringToHex
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   without valid translation to ASCII at byte position 2 ...
   without valid translation to ASCII at byte position 2 ...
</p>
</p>
</ol>


==See also==
==See also==
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<p class="code">http://www.w3.org/TR/xhtml1/dtds.html#h-A2
<p class="code">http://www.w3.org/TR/xhtml1/dtds.html#h-A2
</p>
</p>
<li>There is more information about the [[Unicode tables]].
<li>There is more information about the [[Unicode#Support_for_the_ASCII_subset_of_Unicode|Unicode tables]].
<li>The inverse of the <var>EbcdicToAscii</var> method is [[AsciiToEbcdic (String function)|AsciiToEbcdic]].
<li>The inverse of the <var>EbcdicToAscii</var> method is <var>[[AsciiToEbcdic (String function)|AsciiToEbcdic]]</var>.
</ul>
</ul>
{{Template:String:EbcdicToAscii footer}}
{{Template:String:EbcdicToAscii footer}}

Latest revision as of 19:13, 6 November 2012

Convert EBCDIC string to ASCII (String class)


EbcdicToAscii is an intrinsic function that converts an EBCDIC string to ASCII (ISO 8859-1) using the current Unicode tables. Optionally, character references, entity references, and individual ampersand (&) references are converted to the represented ASCII character.

Syntax

%outString = string:EbcdicToAscii[( [CharacterDecode= boolean])] Throws CharacterTranslationException

Syntax terms

%outString A string variable to receive the method object, string, translated to Ascii.
string An EBCDIC character string.
CharacterDecode The optional (name required) CharacterDecode argument is a Boolean enumeration:
  • 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 &amp;. This substring is converted to a single & character.
    • A hexadecimal character reference (for example, the six characters '&#x90;' for the ASCII "Device Control String" character (X'90')). 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 &copy; for the copyright character ©). The entity reference is converted to the referenced character.

    A decimal character reference (for example, &#172;) is not allowed.

  • If its value is False, the default, an ampersand is treated only as a normal character.

Exceptions

EbcdicToAscii 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

  • EbcdicToAscii is available as of Sirius Mods version 7.3.

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&#x0A;2' %a = %e:EbcdicToAscii(CharacterDecode=True) Print %a:StringToHex %e = '&copy;' %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 ...

See also