4.15 Character Set Support in the HLA Standard Library
The HLA Standard Library provides several character set routines you may find useful. The character set support routines fall into four categories: standard character set functions, character set tests, character set conversions, and character set I/O. This section describes these routines in the HLA Standard Library.
To begin with, let's consider the Standard Library routines that help you construct character sets. These routines include cs.empty, cs.cpy, cs.charToCset, cs.unionChar, cs.removeChar, cs.rangeChar, cs.strToCset, and cs.unionStr. These procedures let you build up character sets at runtime using character and string objects.
The cs.empty procedure initializes a character set variable ...
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