1 /*- 2 * Copyright (c) 1992 Diomidis Spinellis. 3 * Copyright (c) 1992 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Diomidis Spinellis of Imperial College, University of London. 8 * 9 * %sccs.include.redist.c% 10 * 11 * @(#)defs.h 5.2 (Berkeley) 08/24/92 12 */ 13 14 /* 15 * Types of address specifications 16 */ 17 enum e_atype { 18 AT_RE, /* Line that match RE */ 19 AT_LINE, /* Specific line */ 20 AT_LAST, /* Last line */ 21 }; 22 23 /* 24 * Format of an address 25 */ 26 struct s_addr { 27 enum e_atype type; /* Address type */ 28 union { 29 u_long l; /* Line number */ 30 regex_t *r; /* Regular expression */ 31 } u; 32 }; 33 34 /* 35 * Substitution command 36 */ 37 struct s_subst { 38 int n; /* Occurrence to subst. */ 39 int p; /* True if p flag */ 40 char *wfile; /* NULL if no wfile */ 41 int wfd; /* Cached file descriptor */ 42 regex_t *re; /* Regular expression */ 43 regmatch_t *pmatch; /* Array of match strucs */ 44 int maxbref; /* Largest backreference. */ 45 u_long linenum; /* Line number. */ 46 char *new; /* Replacement text */ 47 }; 48 49 50 /* 51 * An internally compiled command. 52 * Initialy, label references are stored in u.t, on a second pass they 53 * are updated to pointers. 54 */ 55 struct s_command { 56 struct s_command *next; /* Pointer to next command */ 57 struct s_addr *a1, *a2; /* Start and end address */ 58 char *t; /* Text for : a c i r w */ 59 union { 60 struct s_command *c; /* Command(s) for b t { */ 61 struct s_subst *s; /* Substitute command */ 62 u_char *y; /* Replace command array */ 63 int fd; /* File descriptor for w */ 64 } u; 65 char code; /* Command code */ 66 u_int nonsel:1; /* True if ! */ 67 u_int inrange:1; /* True if in range */ 68 }; 69 70 /* 71 * Types of command arguments recognised by the parser 72 */ 73 enum e_args { 74 EMPTY, /* d D g G h H l n N p P q x = \0 */ 75 TEXT, /* a c i */ 76 NONSEL, /* ! */ 77 GROUP, /* { */ 78 COMMENT, /* # */ 79 BRANCH, /* b t */ 80 LABEL, /* : */ 81 RFILE, /* r */ 82 WFILE, /* w */ 83 SUBST, /* s */ 84 TR /* y */ 85 }; 86 87 /* 88 * Structure containing things to append before a line is read 89 */ 90 struct s_appends { 91 enum {AP_STRING, AP_FILE} type; 92 char *s; 93 }; 94 95 /* 96 * Error severity codes: 97 */ 98 #define FATAL 0 /* Exit immediately with 1 */ 99 #define ERROR 1 /* Continue, but change exit value */ 100 #define WARNING 2 /* Just print the warning */ 101 #define COMPILE 3 /* Print error, count and finish script */ 102 #define COMPILE2 3 /* Print error, count and finish script */ 103