42 lines
1.0 KiB
C
42 lines
1.0 KiB
C
/*
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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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#ifndef _PAX_REGEXP_H
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#define _PAX_REGEXP_H
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#define NSUBEXP 10
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typedef struct regexp {
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char *startp[NSUBEXP];
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char *endp[NSUBEXP];
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char regstart; /* Internal use only. */
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char reganch; /* Internal use only. */
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char *regmust; /* Internal use only. */
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int regmlen; /* Internal use only. */
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char program[1]; /* Unwarranted chumminess with compiler. */
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} regexp;
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/*
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* The first byte of the regexp internal "program" is actually this magic
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* number; the start node begins in the second byte.
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*/
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#define MAGIC 0234
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#ifdef __STDC__ /* Xn */
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extern regexp *regcomp(char *);
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extern int regexec(register regexp *, register char *);
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extern void regsub(regexp *, char *, char *);
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extern void regerror(char *);
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#else /* Xn */
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extern regexp *regcomp();
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extern int regexec();
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extern void regsub();
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extern void regerror();
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#endif /* Xn */
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#endif /* _PAX_REGEXP_H */
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