30 lines
1.1 KiB
Plaintext
30 lines
1.1 KiB
Plaintext
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* PI and PI/open Extended Character Set - Internal
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* This swaps the mark characters with 5 control characters in the C0
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* range, so that the positions normally occupied by marks can be used
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* as printing characters, as follows (using ISO8859/1 descriptions):
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*
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* Internally: Externally:
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*
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* ^Z (SUB) 0x1A = u-circumflex Text mark
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* ^\ (FS) 0x1C = u-diaeresis Subvalue mark
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* ^] (GS) 0x1D = y-acute Value mark
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* ^^ (RS) 0x1E = thorn Field mark
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* ^_ (US) 0x1F = y-diaeresis Item mark
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*
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* This map can be used on internal data that is known to be in the PI/open
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* character set and known to contain the 5 G1 characters mentioned
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* (for example, records in dynamic hashed files).
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* See also the table PIECS-EXT for a mapping of the PI/open character
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* as it applies to external data (for example, records in type 1 files).
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*
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1A 00FB * Control chars become ISO8859/1 G1 characters...
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1C 00FC
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1D 00FD
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1E 00FE
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1F 00FF
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FB @TM * and these characters are the usual marks ...
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FC @SM
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FD @VM
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FE @FM
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FF @IM
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