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C.4 Lexical Syntax

The lexical syntax for the components of identifiers is as follows:

Thus the following characters are not allowed to occur at all in an identifier:
( ) ; , ` " %
nor are those ISO Latin-1 characters which cannot currently be formatted straightforwardly in both LaTeX and RTF using standard fonts, namely the signs for general currency, yen, broken vertical bar, registered trade mark, and left and right angle quotes. (The ISO Latin-1 characters for [CHANGED:] masculine and feminine ordinals, [] fractions, soft hyphens, and the isolated acute accent, cedilla, macron, and umlaut, are rejected merely because they do not seem at all useful in forming identifiers.)

The following further restrictions are imposed:

CoFI Document: CASL/Summary-v1.0 -- Version: 1.0 -- 22 October 1998.
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