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7.1.1.3 Special characters

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When reading an lgs source text, lgc gives special treatment to characters with codes between Code 0 and Code 31, inclusive:

Code 9 horizontal tab (TAB)
A TAB is treated as a Code 32 space.
Code 10 line feed (LF)
An LF marks the end of a line.
Code 12 form feed (FF)
An FF is treated as an LF.
Code 13 carriage return (CR)
A CR is treated as an LF.

Codes between 0 and 31, inclusive, other than TAB, LF, FF, and CR are considered illegal.

CR and LF are treated specially in that a CRLF (a CR followed by an LF) represents one rather than two line feeds. Likewise, a LFCR (an LF followed by a CR) represents one rather than two line feeds.

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