175 lines
6.2 KiB
C
175 lines
6.2 KiB
C
/* $OpenBSD: extern.h,v 1.29 2002/02/16 21:27:48 millert Exp $ */
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/* $NetBSD: extern.h,v 1.3 1996/01/13 23:25:24 pk Exp $ */
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/*-
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ozan Yigit at York University.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)extern.h 8.1 (Berkeley) 6/6/93
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* $FreeBSD$
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*/
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/* eval.c */
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extern void eval(const char *[], int, int);
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extern void dodefine(const char *, const char *);
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extern unsigned long expansion_id;
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/* expr.c */
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extern int expr(const char *);
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/* gnum4.c */
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extern void addtoincludepath(const char *);
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extern struct input_file *fopen_trypath(struct input_file *, const char *);
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extern void doindir(const char *[], int);
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extern void dobuiltin(const char *[], int);
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extern void dopatsubst(const char *[], int);
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extern void doregexp(const char *[], int);
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extern void doprintlineno(struct input_file *);
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extern void doprintfilename(struct input_file *);
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extern void doesyscmd(const char *);
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/* look.c */
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extern ndptr addent(const char *);
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extern unsigned hash(const char *);
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extern ndptr lookup(const char *);
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extern void remhash(const char *, int);
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/* main.c */
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extern void outputstr(const char *);
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extern int builtin_type(const char *);
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extern const char *builtin_realname(int);
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extern void emitline(void);
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/* misc.c */
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extern void chrsave(int);
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extern char *compute_prevep(void);
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extern void getdiv(int);
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extern ptrdiff_t indx(const char *, const char *);
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extern void initspaces(void);
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extern void killdiv(void);
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extern void onintr(int);
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extern void pbnum(int);
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extern void pbunsigned(unsigned long);
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extern void pbstr(const char *);
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extern void putback(int);
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extern void *xalloc(size_t);
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extern char *xstrdup(const char *);
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extern void usage(void);
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extern void resizedivs(int);
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extern size_t buffer_mark(void);
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extern void dump_buffer(FILE *, size_t);
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extern int obtain_char(struct input_file *);
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extern void set_input(struct input_file *, FILE *, const char *);
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extern void release_input(struct input_file *);
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/* speeded-up versions of chrsave/putback */
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#define PUTBACK(c) \
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do { \
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if (bp >= endpbb) \
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enlarge_bufspace(); \
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*bp++ = (c); \
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} while(0)
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#define CHRSAVE(c) \
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do { \
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if (ep >= endest) \
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enlarge_strspace(); \
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*ep++ = (c); \
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} while(0)
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/* and corresponding exposure for local symbols */
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extern void enlarge_bufspace(void);
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extern void enlarge_strspace(void);
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extern char *endpbb;
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extern char *endest;
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/* trace.c */
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extern void mark_traced(const char *, int);
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extern int is_traced(const char *);
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extern void trace_file(const char *);
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extern ssize_t trace(const char **, int, struct input_file *);
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extern void finish_trace(size_t);
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extern int traced_macros;
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extern void set_trace_flags(const char *);
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extern FILE *traceout;
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extern ndptr hashtab[]; /* hash table for macros etc. */
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extern stae *mstack; /* stack of m4 machine */
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extern char *sstack; /* shadow stack, for string space extension */
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extern FILE *active; /* active output file pointer */
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extern struct input_file infile[];/* input file stack (0=stdin) */
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extern char *inname[]; /* names of these input files */
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extern int inlineno[]; /* current number in each input file */
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extern FILE **outfile; /* diversion array(0=bitbucket) */
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extern int maxout; /* maximum number of diversions */
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extern int fp; /* m4 call frame pointer */
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extern int ilevel; /* input file stack pointer */
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extern int oindex; /* diversion index. */
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extern int sp; /* current m4 stack pointer */
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extern char *bp; /* first available character */
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extern char *buf; /* push-back buffer */
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extern char *bufbase; /* buffer base for this ilevel */
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extern char *bbase[]; /* buffer base per ilevel */
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extern char ecommt[MAXCCHARS+1];/* end character for comment */
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extern char *ep; /* first free char in strspace */
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extern char lquote[MAXCCHARS+1];/* left quote character (`) */
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extern const char *m4wraps; /* m4wrap string default. */
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extern const char *null; /* as it says.. just a null. */
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extern char rquote[MAXCCHARS+1];/* right quote character (') */
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extern char scommt[MAXCCHARS+1];/* start character for comment */
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extern int synccpp; /* Line synchronisation for C preprocessor */
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extern int mimic_gnu; /* behaves like gnu-m4 */
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/* get a possibly pushed-back-character, increment lineno if need be */
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static __inline int gpbc(void)
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{
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int chscratch; /* Scratch space. */
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if (bp > bufbase) {
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if (*--bp)
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return ((unsigned char)*bp);
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else
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return (EOF);
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}
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chscratch = obtain_char(infile+ilevel);
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if (chscratch == '\n')
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++inlineno[ilevel];
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return (chscratch);
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}
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