2 Bacula® - The Network Backup Solution
4 Copyright (C) 2000-2007 Free Software Foundation Europe e.V.
6 The main author of Bacula is Kern Sibbald, with contributions from
7 many others, a complete list can be found in the file AUTHORS.
8 This program is Free Software; you can redistribute it and/or
9 modify it under the terms of version two of the GNU General Public
10 License as published by the Free Software Foundation and included
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 Bacula® is a registered trademark of John Walker.
24 The licensor of Bacula is the Free Software Foundation Europe
25 (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
26 Switzerland, email:ftf@fsfeurope.org.
31 * Lexical scanning of configuration files, used by parsers.
42 /* Lex get_char() return values */
49 /* Tokens returned by get_token() */
53 #define T_IDENTIFIER 104
54 #define T_UNQUOTED_STRING 105
55 #define T_QUOTED_STRING 106
56 #define T_BOB 108 /* begin block */
57 #define T_EOB 109 /* end of block */
62 #define T_UTF8_BOM 201 /* File starts with a UTF-8 BOM*/
63 #define T_UTF16_BOM 202 /* File starts with a UTF-16LE BOM*/
66 * The following will be returned only if
67 * the appropriate expect flag has been set
69 #define T_SKIP_EOL 113 /* scan through EOLs */
70 #define T_PINT32 114 /* positive integer */
71 #define T_PINT32_RANGE 115 /* positive integer range */
72 #define T_INT32 116 /* integer */
73 #define T_INT64 117 /* 64 bit integer */
74 #define T_NAME 118 /* name max 128 chars */
75 #define T_STRING 119 /* string */
77 #define T_ALL 0 /* no expectations */
88 lex_include_quoted_string,
90 lex_utf8_bom, /* we are parsing out a utf8 byte order mark */
91 lex_utf16_le_bom /* we are parsing out a utf-16 (little endian) byte order mark */
94 /* Lex scan options */
95 #define LOPT_NO_IDENT 0x1 /* No Identifiers -- use string */
96 #define LOPT_STRING 0x2 /* Force scan for string */
98 class BPIPE; /* forward reference */
100 /* Lexical context */
101 typedef struct s_lex_context {
102 struct s_lex_context *next; /* pointer to next lexical context */
103 int options; /* scan options */
104 char *fname; /* filename */
105 FILE *fd; /* file descriptor */
106 char line[MAXSTRING]; /* input line */
107 char str[MAXSTRING]; /* string being scanned */
108 int str_len; /* length of string */
109 int line_no; /* file line number */
110 int col_no; /* char position on line */
111 int begin_line_no; /* line no of beginning of string */
112 enum lex_state state; /* lex_state variable */
113 int ch; /* last char/L_VAL returned by get_char */
116 uint32_t pint32_val2;
119 void (*scan_error)(const char *file, int line, struct s_lex_context *lc, const char *msg, ...);
120 int err_type; /* message level for scan_error (M_..) */
121 void *caller_ctx; /* caller private data */
122 BPIPE *bpipe; /* set if we are piping */
125 typedef void (LEX_ERROR_HANDLER)(const char *file, int line, LEX *lc, const char *msg, ...);
127 /* Lexical scanning errors in parsing conf files */
128 #define scan_err0(lc, msg) lc->scan_error(__FILE__, __LINE__, lc, msg)
129 #define scan_err1(lc, msg, a1) lc->scan_error(__FILE__, __LINE__, lc, msg, a1)
130 #define scan_err2(lc, msg, a1, a2) lc->scan_error(__FILE__, __LINE__, lc, msg, a1, a2)
131 #define scan_err3(lc, msg, a1, a2, a3) lc->scan_error(__FILE__, __LINE__, lc, msg, a1, a2, a3)
132 #define scan_err4(lc, msg, a1, a2, a3, a4) lc->scan_error(__FILE__, __LINE__, lc, msg, a1, a2, a3, a4)
133 #define scan_err5(lc, msg, a1, a2, a3, a4, a5) lc->scan_error(__FILE__, __LINE__, lc, msg, a1, a2, a3, a4, a5)
134 #define scan_err6(lc, msg, a1, a2, a3, a4, a5, a6) lc->scan_error(__FILE__, __LINE__, lc, msg, a1, a2, a3, a4, a5, a6)
136 void scan_to_eol(LEX *lc);
137 int scan_to_next_not_eol(LEX * lc);