24 lines
638 B
C
24 lines
638 B
C
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/*
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* Definitions etc. for regexp(3) routines.
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*
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* Caveat: this is V8 regexp(3) [actually, a reimplementation thereof],
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* not the System V one.
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*/
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#define ushort unsigned short
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#define CHARBITS 0xffff
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#define NSUBEXP 10
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typedef struct regexp {
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ushort *startp[NSUBEXP];
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ushort *endp[NSUBEXP];
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ushort regstart; /* Internal use only. */
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ushort reganch; /* Internal use only. */
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ushort *regmust; /* Internal use only. */
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int regmlen; /* Internal use only. */
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ushort program[1]; /* Unwarranted chumminess with compiler. */
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} regexp;
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extern regexp *regcomp();
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extern int regexec();
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extern int regsub();
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extern int regerror();
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