cmd/sed/defs.h

84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore/*
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * Copyright (c) 1992 Diomidis Spinellis.
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * Copyright (c) 1992, 1993
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore *  The Regents of the University of California.  All rights reserved.
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore *
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * This code is derived from software contributed to Berkeley by
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * Diomidis Spinellis of Imperial College, University of London.
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore *
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * Redistribution and use in source and binary forms, with or without
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * modification, are permitted provided that the following conditions
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * are met:
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * 1. Redistributions of source code must retain the above copyright
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore *    notice, this list of conditions and the following disclaimer.
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * 2. Redistributions in binary form must reproduce the above copyright
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore *    notice, this list of conditions and the following disclaimer in the
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore *    documentation and/or other materials provided with the distribution.
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * 4. Neither the name of the University nor the names of its contributors
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore *    may be used to endorse or promote products derived from this software
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore *    without specific prior written permission.
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore *
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * SUCH DAMAGE.
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore#ifndef DEFS_H
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore#define DEFS_H
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore/*
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * Types of address specifications
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amoreenum e_atype {
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    AT_RE       = 1,            /* Line that match RE */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    AT_LINE,                /* Specific line */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    AT_RELLINE,             /* Relative line */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    AT_LAST                 /* Last line */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore};
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore/*
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * Format of an address
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amorestruct s_addr {
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    enum e_atype type;          /* Address type */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    union {
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore        ulong_t l;          /* Line number */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore        regex_t *r;         /* Regular expression */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    } u;
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore};
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore/*
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * Substitution command
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amorestruct s_subst {
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    int n;                  /* Occurrence to subst. */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    int p;                  /* True if p flag */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    int icase;              /* True if I flag */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    char *wfile;                /* NULL if no wfile */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    int wfd;                /* Cached file descriptor */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    regex_t *re;                /* Regular expression */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    unsigned int maxbref;           /* Largest backreference. */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    ulong_t linenum;                /* Line number. */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    char *new;              /* Replacement text */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore};
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore/*
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * Translate command.
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amorestruct s_tr {
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    unsigned char bytetab[256];
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    struct trmulti {
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore        size_t fromlen;
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore        char from[MB_LEN_MAX];
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore        size_t tolen;
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore        char to[MB_LEN_MAX];
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    } *multis;
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    int nmultis;
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore};
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore/*
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * An internally compiled command.
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * Initialy, label references are stored in t, on a second pass they
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * are updated to pointers.
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amorestruct s_command {
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    struct s_command *next;         /* Pointer to next command */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    struct s_addr *a1, *a2;         /* Start and end address */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    ulong_t startline;          /* Start line number or zero */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    char *t;                /* Text for : a c i r w */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    union {
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore        struct s_command *c;        /* Command(s) for b t { */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore        struct s_subst *s;      /* Substitute command */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore        struct s_tr *y;         /* Replace command array */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore        int fd;             /* File descriptor for w */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    } u;
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    char code;              /* Command code */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    uint_t nonsel:1;                /* True if ! */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore};
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore/*
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * Types of command arguments recognised by the parser
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amoreenum e_args {
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    EMPTY,          /* d D g G h H l n N p P q x = \0 */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    TEXT,           /* a c i */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    NONSEL,         /* ! */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    GROUP,          /* { */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    ENDGROUP,       /* } */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    COMMENT,        /* # */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    BRANCH,         /* b t */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    LABEL,          /* : */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    RFILE,          /* r */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    WFILE,          /* w */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    SUBST,          /* s */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    TR          /* y */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore};
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore/*
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * Structure containing things to append before a line is read
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amorestruct s_appends {
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    enum {AP_STRING, AP_FILE} type;
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    char *s;
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    size_t len;
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore};
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amoreenum e_spflag {
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    APPEND,                 /* Append to the contents. */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    REPLACE                 /* Replace the contents. */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore};
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore/*
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore * Structure for a space (process, hold, otherwise).
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amoretypedef struct {
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    char *space;        /* Current space pointer. */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    size_t len;     /* Current length. */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    int deleted;        /* If deleted. */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    char *back;     /* Backing memory. */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore    size_t blen;        /* Backing memory length. */
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore} SPACE;
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore
84441f85b19f6b8080883f30109e58e43c893709Garrett D'Amore#endif  /* DEFS_H */