2018-12-19 11:04:43 +09:00
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Copyright (c) 1986 by University of Toronto. Written by Henry Spencer. Not
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derived from licensed software.
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Permission is granted to anyone to use this software for any purpose on any
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computer system, and to redistribute it freely, subject to the following restrictions:
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1. The author is not responsible for the consequences of use of this software,
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no matter how awful, even if they arise from defects in it.
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2. The origin of this software must not be misrepresented, either by explicit
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claim or by omission.
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3. Altered versions must be plainly marked as such, and must not be misrepresented
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as being the original software.
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2021-01-24 09:19:18 +09:00
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Beware that some of this code is subtly aware of the way operator precedence
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is structured in regular expressions. Serious changes in regular-expression
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syntax might require a total rethink.
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