/* $OpenBSD: defs.h,v 1.6 2015/07/17 20:38:57 jasper Exp $ */ /*- * Copyright (c) 1992 Diomidis Spinellis. * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Diomidis Spinellis of Imperial College, University of London. * * 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. * * from: @(#)defs.h 8.1 (Berkeley) 6/6/93 */ /* * Types of address specifications */ enum e_atype { AT_RE, /* Line that match RE */ AT_LINE, /* Specific line */ AT_LAST, /* Last line */ }; /* * Format of an address */ struct s_addr { enum e_atype type; /* Address type */ union { u_long l; /* Line number */ regex_t *r; /* Regular expression */ } u; }; /* * Substitution command */ struct s_subst { int n; /* Occurrence to subst. */ int p; /* True if p flag */ char *wfile; /* NULL if no wfile */ int wfd; /* Cached file descriptor */ regex_t *re; /* Regular expression */ int maxbref; /* Largest backreference. */ u_long linenum; /* Line number. */ char *new; /* Replacement text */ }; /* * An internally compiled command. * Initialy, label references are stored in t, on a second pass they * are updated to pointers. */ struct s_command { struct s_command *next; /* Pointer to next command */ struct s_addr *a1, *a2; /* Start and end address */ char *t; /* Text for : a c i r w */ union { struct s_command *c; /* Command(s) for b t { */ struct s_subst *s; /* Substitute command */ u_char *y; /* Replace command array */ int fd; /* File descriptor for w */ } u; char code; /* Command code */ u_int nonsel:1; /* True if ! */ u_int inrange:1; /* True if in range */ }; /* * Types of command arguments recognised by the parser */ enum e_args { EMPTY, /* d D g G h H l n N p P q x = \0 */ TEXT, /* a c i */ NONSEL, /* ! */ GROUP, /* { */ ENDGROUP, /* } */ COMMENT, /* # */ BRANCH, /* b t */ LABEL, /* : */ RFILE, /* r */ WFILE, /* w */ SUBST, /* s */ TR /* y */ }; /* * Structure containing things to append before a line is read */ struct s_appends { enum {AP_STRING, AP_FILE} type; char *s; size_t len; }; enum e_spflag { APPEND, /* Append to the contents. */ REPLACE, /* Replace the contents. */ }; /* * Structure for a space (process, hold, otherwise). */ typedef struct { char *space; /* Current space pointer. */ size_t len; /* Current length. */ int deleted; /* If deleted. */ int append_newline; /* If originally terminated by \n. */ char *back; /* Backing memory. */ size_t blen; /* Backing memory length. */ } SPACE; /* * Error severity codes: */ #define FATAL 0 /* Exit immediately with 1 */ #define ERROR 1 /* Continue, but change exit value */ #define WARNING 2 /* Just print the warning */ #define COMPILE 3 /* Print error, count and finish script */ #define COMPILE2 3 /* Print error, count and finish script */ /* * Round up to the nearest multiple of _POSIX2_LINE_MAX */ #define ROUNDLEN(x) \ (((x) + _POSIX2_LINE_MAX - 1) & ~(_POSIX2_LINE_MAX - 1))