diff options
Diffstat (limited to 'dfa.h')
| -rw-r--r-- | dfa.h | 48 |
1 files changed, 28 insertions, 20 deletions
@@ -1,5 +1,5 @@ /* dfa.h - declarations for GNU deterministic regexp compiler - Copyright (C) 1988 Free Software Foundation, Inc. + Copyright (C) 1988, 1998 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -22,6 +22,21 @@ In addition to clobbering modularity, we eat up valuable name space. */ +# undef PARAMS +#if __STDC__ +# ifndef _PTR_T +# define _PTR_T + typedef void * ptr_t; +# endif +# define PARAMS(x) x +#else +# ifndef _PTR_T +# define _PTR_T + typedef char * ptr_t; +# endif +# define PARAMS(x) () +#endif + /* Number of bits in an unsigned char. */ #ifndef CHARBITS #define CHARBITS 8 @@ -305,16 +320,15 @@ struct dfa /* Entry points. */ -#ifdef __STDC__ - -/* dfasyntax() takes two arguments; the first sets the syntax bits described - earlier in this file, and the second sets the case-folding flag. */ -extern void dfasyntax(reg_syntax_t, int); +/* dfasyntax() takes three arguments; the first sets the syntax bits described + earlier in this file, the second sets the case-folding flag, and the + third specifies the line terminator. */ +extern void dfasyntax PARAMS ((reg_syntax_t, int, int)); /* Compile the given string of the given length into the given struct dfa. Final argument is a flag specifying whether to build a searching or an exact matcher. */ -extern void dfacomp(char *, size_t, struct dfa *, int); +extern void dfacomp PARAMS ((char *, size_t, struct dfa *, int)); /* Execute the given struct dfa on the buffer of characters. The first char * points to the beginning, and the second points to the @@ -328,26 +342,26 @@ extern void dfacomp(char *, size_t, struct dfa *, int); order to verify backreferencing; otherwise the flag will be cleared. Returns NULL if no match is found, or a pointer to the first character after the first & shortest matching string in the buffer. */ -extern char *dfaexec(struct dfa *, char *, char *, int, int *, int *); +extern char *dfaexec PARAMS ((struct dfa *, char *, char *, int, int *, int *)); /* Free the storage held by the components of a struct dfa. */ -extern void dfafree(struct dfa *); +extern void dfafree PARAMS ((struct dfa *)); /* Entry points for people who know what they're doing. */ /* Initialize the components of a struct dfa. */ -extern void dfainit(struct dfa *); +extern void dfainit PARAMS ((struct dfa *)); /* Incrementally parse a string of given length into a struct dfa. */ -extern void dfaparse(char *, size_t, struct dfa *); +extern void dfaparse PARAMS ((char *, size_t, struct dfa *)); /* Analyze a parsed regexp; second argument tells whether to build a searching or an exact matcher. */ -extern void dfaanalyze(struct dfa *, int); +extern void dfaanalyze PARAMS ((struct dfa *, int)); /* Compute, for each possible character, the transitions out of a given state, storing them in an array of integers. */ -extern void dfastate(int, struct dfa *, int []); +extern void dfastate PARAMS ((int, struct dfa *, int [])); /* Error handling. */ @@ -355,10 +369,4 @@ extern void dfastate(int, struct dfa *, int []); takes a single argument, a NUL-terminated string describing the error. The default dfaerror() prints the error message to stderr and exits. The user can provide a different dfafree() if so desired. */ -extern void dfaerror(const char *); - -#else /* ! __STDC__ */ -extern void dfasyntax(), dfacomp(), dfafree(), dfainit(), dfaparse(); -extern void dfaanalyze(), dfastate(), dfaerror(); -extern char *dfaexec(); -#endif /* ! __STDC__ */ +extern void dfaerror PARAMS ((const char *)); |