HP 3000 Manuals

MPE XL Native Language Programmer's Guide

Conversion Algorithm 

The conversion utilities convert records or fields from files that are
assumed to have been created at an HP 262X terminal configured for 7-bit
operation and for a language other than USASCII. The conversion from the
HP 262X implementation of a European 7-bit substitution character set to
the 8-bit ROMAN8 character set.  This involves converting the values of
certain characters stored in the file.  Before conversion, the file
should look correct on an HP 262X terminal configured for 7-bit operation
with the appropriate substitution set.  After conversion the file will
look correct on any terminal configured for 8-bit operation.

Records and/or fields from files of all types are converted using the
same algorithm.  The conversion affects only the 12 characters shown in
Table D-2 (all other characters remain unchanged).  There are two rows of
information opposite each national substitution set listed in Table D-2:

 *  The upper row indicates the graphic assigned in 7-bit operation.

 *  The lower row indicates the decimal value assigned the graphic in
    ROMAN8 after using the conversion algorithm.

          Table D-2.  Character Conversion Decimal Values 


Table D-3 shows the special character conversion for specified FRANCAIS M
and ESPANOL M characters.  If these characters are followed immediately
by certain characters, the two-character combination is converted to a
single ROMAN8 character, and the field or record being converted is
padded at the end with a blank.

          Table D-3.  Special Character Conversion 



NOTE  If these characters are followed by any other character, they are
      converted to their ROMAN8 equivalent as shown in Table D-2.

MPE/iX 5.0 Documentation