/* $OpenBSD: extern.h,v 1.49 2009/10/14 17:19:47 sthen Exp $ */ /* $NetBSD: extern.h,v 1.19.18.1 2020/07/07 10:40:46 martin Exp $ */ /*- * Copyright (c) 1991, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Ozan Yigit at York University. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)extern.h 8.1 (Berkeley) 6/6/93 */ /* eval.c */ extern void eval(const char *[], int, int, int); extern void dodefine(const char *, const char *); extern unsigned long expansion_id; /* expr.c */ extern int expr(const char *); /* gnum4.c */ extern void addtoincludepath(const char *); extern struct input_file *fopen_trypath(struct input_file *, const char *); extern void doindir(const char *[], int); extern void dobuiltin(const char *[], int); extern void dopatsubst(const char *[], int); extern void doregexp(const char *[], int); extern void doprintlineno(struct input_file *); extern void doprintfilename(struct input_file *); extern void doesyscmd(const char *); extern void getdivfile(const char *); extern void doformat(const char *[], int); #ifdef REAL_FREEZE extern void freeze_state(const char *); extern void thaw_state(const char *); #endif /* look.c */ #define FLAG_UNTRACED 0 #define FLAG_TRACED 1 #define FLAG_NO_TRACE 2 extern void init_macros(void); extern ndptr lookup(const char *); extern void mark_traced(const char *, int); extern struct ohash macros; extern struct macro_definition *lookup_macro_definition(const char *); extern void macro_define(const char *, const char *); extern void macro_pushdef(const char *, const char *); extern void macro_popdef(const char *); extern void macro_undefine(const char *); extern void setup_builtin(const char *, unsigned int); extern void macro_for_all(void (*)(const char *, struct macro_definition *)); #define macro_getdef(p) ((p)->d) #define macro_name(p) ((p)->name) #define macro_builtin_type(p) ((p)->builtin_type) #define is_traced(p) ((p)->trace_flags == FLAG_NO_TRACE ? (trace_flags & TRACE_ALL) : (p)->trace_flags) extern ndptr macro_getbuiltin(const char *); #ifdef REAL_FREEZE extern void dump_state(FILE *); extern void restore_state(FILE *); #endif /* main.c */ extern void outputstr(const char *); extern void do_emit_synchline(void); #define emit_synchline() do { if (synch_lines) do_emit_synchline(); } while(0) /* misc.c */ extern void chrsave(int); extern char *compute_prevep(void); extern void getdiv(int); extern ptrdiff_t indx(const char *, const char *); extern void initspaces(void); extern void killdiv(void); extern void pbnum(int); extern void pbnumbase(int, int, int); extern void pbunsigned(unsigned long); extern void pbstr(const char *); extern void pushback(int); extern void *xalloc(size_t, const char *fmt, ...) __printflike(2, 3); extern void *xrealloc(void *, size_t, const char *fmt, ...) __printflike(3, 4); extern char *xstrdup(const char *); extern void resizedivs(int); extern size_t buffer_mark(void); extern void dump_buffer(FILE *, size_t); extern void __dead m4errx(int, const char *, ...) __printflike(2, 3); extern int obtain_char(struct input_file *); extern void set_input(struct input_file *, FILE *, const char *); extern void release_input(struct input_file *); /* speeded-up versions of chrsave/pushback */ #define PUSHBACK(c) \ do { \ if (bp >= endpbb) \ enlarge_bufspace(); \ *bp++ = (c); \ } while(0) #define CHRSAVE(c) \ do { \ if (ep >= endest) \ enlarge_strspace(); \ *ep++ = (c); \ } while(0) /* and corresponding exposure for local symbols */ extern void enlarge_bufspace(void); extern void enlarge_strspace(void); extern unsigned char *endpbb; extern char *endest; /* trace.c */ extern unsigned int trace_flags; #define TRACE_ALL 512 extern int trace_file(const char *); extern size_t trace(const char **, int, struct input_file *); extern void finish_trace(size_t); extern void set_trace_flags(const char *); extern FILE *traceout; extern ndptr hashtab[]; /* hash table for macros etc. */ extern stae *mstack; /* stack of m4 machine */ extern char *sstack; /* shadow stack, for string space extension */ extern FILE *active; /* active output file pointer */ extern struct input_file infile[];/* input file stack (0=stdin) */ extern FILE **outfile; /* diversion array(0=bitbucket) */ extern int maxout; /* maximum number of diversions */ extern int fp; /* m4 call frame pointer */ extern int ilevel; /* input file stack pointer */ extern int oindex; /* diversion index. */ extern int sp; /* current m4 stack pointer */ extern unsigned char *bp; /* first available character */ extern unsigned char *buf; /* push-back buffer */ extern unsigned char *bufbase; /* buffer base for this ilevel */ extern unsigned char *bbase[]; /* buffer base per ilevel */ extern char ecommt[MAXCCHARS+1];/* end character for comment */ extern char *ep; /* first free char in strspace */ extern char lquote[MAXCCHARS+1];/* left quote character (`) */ extern char **m4wraps; /* m4wrap string default. */ extern int maxwraps; /* size of m4wraps array */ extern int wrapindex; /* current index in m4wraps */ extern int fatal_warnings; /* exit on warning */ extern int quiet; /* no warnings */ extern int nesting_limit; /* macro expansion nesting limit */ #ifndef REAL_FREEZE extern FILE *freezef; /* copy of input */ extern int thawing; /* don't process includes during thaw */ #endif extern const char *null; /* as it says.. just a null. */ extern char rquote[MAXCCHARS+1];/* right quote character (') */ extern char scommt[MAXCCHARS+1];/* start character for comment */ extern int synch_lines; /* line synchronisation directives */ extern int mimic_gnu; /* behaves like gnu-m4 */ extern int prefix_builtins; /* prefix builtin macros with m4_ */