ICI Modules: is
Modules by name : by type
OverviewThe is module provides character class testing functions similar to C's <ctype.h> functions and macros. The module takes a slightly different approach made possible by ICI's support for sets.
The module exports a number of set objects into the extern scope that containing character codes and single character strings of various types. Testing a character against a character class is performed using set lookups of either a string or integer character code.
The following sets are defined,