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Annotation of src/usr.bin/m4/extern.h, Revision 1.37

1.37    ! espie       1: /*     $OpenBSD: extern.h,v 1.36 2003/06/30 22:10:21 espie Exp $       */
1.2       deraadt     2: /*     $NetBSD: extern.h,v 1.3 1996/01/13 23:25:24 pk Exp $    */
1.1       deraadt     3:
                      4: /*-
                      5:  * Copyright (c) 1991, 1993
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to Berkeley by
                      9:  * Ozan Yigit at York University.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
1.31      millert    19:  * 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    20:  *    may be used to endorse or promote products derived from this software
                     21:  *    without specific prior written permission.
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     33:  * SUCH DAMAGE.
                     34:  *
                     35:  *     @(#)extern.h    8.1 (Berkeley) 6/6/93
                     36:  */
                     37:
1.11      espie      38: /* eval.c */
1.35      espie      39: extern void    eval(const char *[], int, int, int);
1.29      millert    40: extern void    dodefine(const char *, const char *);
1.24      espie      41: extern unsigned long expansion_id;
1.11      espie      42:
                     43: /* expr.c */
1.29      millert    44: extern int     expr(const char *);
1.11      espie      45:
                     46: /* gnum4.c */
1.29      millert    47: extern void    addtoincludepath(const char *);
                     48: extern struct input_file *fopen_trypath(struct input_file *, const char *);
                     49: extern void doindir(const char *[], int);
                     50: extern void dobuiltin(const char *[], int);
                     51: extern void dopatsubst(const char *[], int);
                     52: extern void doregexp(const char *[], int);
1.17      espie      53:
1.29      millert    54: extern void doprintlineno(struct input_file *);
                     55: extern void doprintfilename(struct input_file *);
1.20      espie      56:
1.29      millert    57: extern void doesyscmd(const char *);
1.17      espie      58:
1.11      espie      59:
                     60: /* look.c */
1.36      espie      61: extern void    init_macros(void);
1.29      millert    62: extern ndptr   lookup(const char *);
1.34      espie      63:
                     64: extern struct macro_definition *lookup_macro_definition(const char *);
                     65: extern void    macro_define(const char *, const char *);
                     66: extern void    macro_pushdef(const char *, const char *);
                     67: extern void    macro_popdef(const char *);
                     68: extern void    macro_undefine(const char *);
                     69: extern void    setup_builtin(const char *, unsigned int);
                     70: extern void    macro_for_all(void (*)(const char *, struct macro_definition *));
                     71: extern const char *macro_name(ndptr);
                     72: extern struct macro_definition *macro_getdef(ndptr);
1.37    ! espie      73: extern ndptr macro_getbuiltin(const char *);
        !            74: extern int macro_builtin_type(ndptr);
1.14      espie      75:
                     76: /* main.c */
1.29      millert    77: extern void outputstr(const char *);
1.30      espie      78: extern void do_emit_synchline(void);
                     79: #define emit_synchline() do { if (synch_lines) do_emit_synchline(); } while(0)
1.11      espie      80:
                     81: /* misc.c */
1.29      millert    82: extern void    chrsave(int);
                     83: extern char    *compute_prevep(void);
                     84: extern void    getdiv(int);
                     85: extern ptrdiff_t indx(const char *, const char *);
                     86: extern void    initspaces(void);
                     87: extern void    killdiv(void);
                     88: extern void    onintr(int);
                     89: extern void    pbnum(int);
                     90: extern void    pbunsigned(unsigned long);
                     91: extern void    pbstr(const char *);
                     92: extern void    putback(int);
                     93: extern void    *xalloc(size_t);
                     94: extern char    *xstrdup(const char *);
                     95: extern void    usage(void);
                     96: extern void    resizedivs(int);
                     97: extern size_t  buffer_mark(void);
                     98: extern void    dump_buffer(FILE *, size_t);
                     99:
                    100: extern int     obtain_char(struct input_file *);
                    101: extern void    set_input(struct input_file *, FILE *, const char *);
                    102: extern void    release_input(struct input_file *);
1.26      espie     103:
                    104: /* speeded-up versions of chrsave/putback */
                    105: #define PUTBACK(c)                             \
                    106:        do {                                    \
                    107:                if (bp >= endpbb)               \
                    108:                        enlarge_bufspace();     \
                    109:                *bp++ = (c);                    \
                    110:        } while(0)
                    111:
                    112: #define CHRSAVE(c)                             \
                    113:        do {                                    \
                    114:                if (ep >= endest)               \
                    115:                        enlarge_strspace();     \
                    116:                *ep++ = (c);                    \
                    117:        } while(0)
                    118:
                    119: /* and corresponding exposure for local symbols */
1.29      millert   120: extern void enlarge_bufspace(void);
                    121: extern void enlarge_strspace(void);
1.26      espie     122: extern char *endpbb;
                    123: extern char *endest;
1.15      espie     124:
1.25      espie     125: /* trace.c */
1.29      millert   126: extern void mark_traced(const char *, int);
                    127: extern int is_traced(const char *);
                    128: extern void trace_file(const char *);
                    129: extern ssize_t trace(const char **, int, struct input_file *);
                    130: extern void finish_trace(size_t);
1.25      espie     131: extern int traced_macros;
1.29      millert   132: extern void set_trace_flags(const char *);
1.25      espie     133: extern FILE *traceout;
1.32      espie     134: extern void init_trace(void);
1.15      espie     135:
1.1       deraadt   136: extern ndptr hashtab[];                /* hash table for macros etc. */
1.19      espie     137: extern stae *mstack;           /* stack of m4 machine */
                    138: extern char *sstack;           /* shadow stack, for string space extension */
1.1       deraadt   139: extern FILE *active;           /* active output file pointer */
1.15      espie     140: extern struct input_file infile[];/* input file stack (0=stdin) */
1.21      espie     141: extern FILE **outfile;         /* diversion array(0=bitbucket) */
                    142: extern int maxout;             /* maximum number of diversions */
1.1       deraadt   143: extern int fp;                         /* m4 call frame pointer */
                    144: extern int ilevel;             /* input file stack pointer */
                    145: extern int oindex;             /* diversion index. */
                    146: extern int sp;                 /* current m4 stack pointer */
1.16      espie     147: extern char *bp;               /* first available character */
                    148: extern char *buf;              /* push-back buffer */
                    149: extern char *bufbase;          /* buffer base for this ilevel */
                    150: extern char *bbase[];          /* buffer base per ilevel */
1.13      espie     151: extern char ecommt[MAXCCHARS+1];/* end character for comment */
1.1       deraadt   152: extern char *ep;               /* first free char in strspace */
1.13      espie     153: extern char lquote[MAXCCHARS+1];/* left quote character (`) */
1.1       deraadt   154: extern char *m4wraps;          /* m4wrap string default. */
                    155: extern char *null;             /* as it says.. just a null. */
1.13      espie     156: extern char rquote[MAXCCHARS+1];/* right quote character (') */
                    157: extern char scommt[MAXCCHARS+1];/* start character for comment */
1.30      espie     158: extern int  synch_lines;       /* line synchronisation directives */
1.9       espie     159:
1.18      espie     160: extern int mimic_gnu;          /* behaves like gnu-m4 */
1.34      espie     161: