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Full Discussion: EBCDIC to ASCII conversion
Top Forums UNIX for Advanced & Expert Users EBCDIC to ASCII conversion Post 303032673 by Corona688 on Thursday 21st of March 2019 05:38:37 PM
Old 03-21-2019
Quote:
Originally Posted by vgersh99
Maybe I'm missing something, but wouldn't iconv do the job?
The question is more like, how to convert the ASCII text 0xFFFF into a binary number. The text is ASCII, but the value it represents is binary. Packed decimals are kind of like that, encoded in a special BCD-ish IBM manner that's neither plaintext nor binary as it's usually done.

The sticking point is, they often end up in the middle of EBCDIC streams which look like text files but are really fixed-size database records completely lacking in metadata. Very COBOL-ish. Very IBM. And not actually a text file. dd or iconv can't generate a sensible result from
Code:
String1String2String3(BCD Garbage)String4String1String2String3(BCD Garbage)String4

So, there isn't any generic code to convert a text stream out of packed decimal, and can't be. You have to read the data in a structured way and know which bits to convert and how.

This is usually the point where we ask for the necessary sample of data, OP refuses, and the thread dies.

Last edited by Corona688; 03-21-2019 at 07:13 PM..
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CDTOA(1)						      General Commands Manual							  CDTOA(1)

NAME
cdtoa - To convert the binary format of a dictionary back to text format. SYNOPSIS
cdtoa [-n] [-s] [-z] [-e] [-E] infilename [-h cixingfile ] [ usagefreqfile ] DEFAULT PATH
/usr/local/bin/cWnn4/cdtoa DESCRIPTION
To convert the binary format of the dictionary to text format, and output to standard output(stdout). infilename is the name of the input binary format dictionary. The output may be piped into a file by using the ">" command. For example, cdtoa dict.dic > dict.u "dict.u" here is the output text format dictionary, while the "dict.dic" is the input binary format dictionary. usagefreqfile may indicate more than one user usage frequency files (for a particular user). These usage frequency information will be reflected in the text format dictionary created. OPTIONS
-s To order the entries in text dictionary according to Pinyin or Zhuyin. -n To attach sequence numbers to the output. -z To convert the binary format back to text format in Zhuyin. (Note: default is Pinyin) -e If the Hanzi inside the text dictionary contains characters such as space and tab, they will be compacted to special format. (Default) -E If the Hanzi inside the text dictionary contains characters such as space and tab, they will NOT be compacted to special format. -h cixingfile To specify the Cixing definition file. NOTE
1. The parts in [ ] are options. They may be omitted. 2. The Pinyin and Zhuyin dictionary has the same format. 3. The default conversion result of the text dictionary is in Pinyin. 13 May 1992 CDTOA(1)
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