1 /* The lexer multiplexer for Gedcom.
2 Copyright (C) 2001,2002 The Genes Development Team
3 This file is part of the Gedcom parser library.
4 Contributed by Peter Verthez <Peter.Verthez@advalvas.be>, 2001.
6 The Gedcom parser library is free software; you can redistribute it
7 and/or modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The Gedcom parser library is distributed in the hope that it will be
12 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the Gedcom parser library; if not, write to the
18 Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
24 #include "gedcom_internal.h"
31 typedef int (*lex_func)(void);
34 #define NEW_MODEL_FILE "new.ged"
36 int lexer_init(ENCODING enc, FILE* f)
38 if (enc == ONE_BYTE) {
39 lf = &gedcom_1byte_lex;
40 gedcom_1byte_myinit(f);
41 set_encoding_width(enc);
42 return open_conv_to_internal("ASCII");
44 else if (enc == TWO_BYTE_HILO) {
45 lf = &gedcom_hilo_lex;
46 gedcom_hilo_myinit(f);
47 set_encoding_width(enc);
48 return open_conv_to_internal("UNICODE");
50 else if (enc == TWO_BYTE_LOHI) {
51 lf = &gedcom_lohi_lex;
52 gedcom_lohi_myinit(f);
53 set_encoding_width(enc);
54 return open_conv_to_internal("UNICODE");
63 close_conv_to_internal();
71 int determine_encoding(FILE* f)
76 read = fread(first, 1, 2, f);
78 gedcom_warning(_("Error reading from input file: %s"), strerror(errno));
81 else if ((first[0] == '0') && (first[1] == ' ')) {
82 gedcom_debug_print(_("One-byte encoding"));
83 if (fseek(f, 0, 0) != 0)
84 gedcom_warning(_("Error positioning input file: %s"), strerror(errno));
87 else if ((first[0] == '\0') && (first[1] == '0'))
89 gedcom_debug_print(_("Two-byte encoding, high-low"));
90 if (fseek(f, 0, 0) != 0)
91 gedcom_warning(_("Error positioning input file: %s"), strerror(errno));
94 else if ((first[0] == '\xFE') && (first[1] == '\xFF'))
96 gedcom_debug_print(_("Two-byte encoding, high-low, with BOM"));
99 else if ((first[0] == '0') && (first[1] == '\0'))
101 gedcom_debug_print(_("Two-byte encoding, low-high"));
102 if (fseek(f, 0, 0) != 0)
103 gedcom_warning(_("Error positioning input file: %s"), strerror(errno));
104 return TWO_BYTE_LOHI;
106 else if ((first[0] == '\xFF') && (first[1] == '\xFE'))
108 gedcom_debug_print(_("Two-byte encoding, low-high, with BOM"));
109 return TWO_BYTE_LOHI;
112 gedcom_warning(_("Unknown encoding, falling back to one-byte"));
113 if (fseek(f, 0, 0) != 0)
114 gedcom_warning(_("Error positioning input file: %s"), strerror(errno));
124 update_gconv_search_path();
125 if (!setlocale(LC_ALL, "")
126 || ! bindtextdomain(PACKAGE, LOCALEDIR)
127 || ! bind_textdomain_codeset(PACKAGE, INTERNAL_ENCODING))
133 int gedcom_parse_file(const char* file_name)
140 gedcom_error(_("Internal error: GEDCOM parser not initialized"));
143 file = fopen(file_name, "r");
145 gedcom_error(_("Could not open file '%s': %s"),
146 file_name, strerror(errno));
150 enc = determine_encoding(file);
152 if (lexer_init(enc, file)) {
155 result = gedcom_parse();
158 result = check_xref_table();
168 int gedcom_new_model()
173 file = fopen(NEW_MODEL_FILE, "r");
176 result = gedcom_parse_file(NEW_MODEL_FILE);
179 char* filename = (char*) malloc(strlen(PKGDATADIR) + strlen(NEW_MODEL_FILE)
184 sprintf(filename, "%s/%s", PKGDATADIR, NEW_MODEL_FILE);
185 result = gedcom_parse_file(filename);
192 int gedcom_check_version(int major, int minor, int patch)
194 if (major < GEDCOM_PARSE_VERSION_MAJOR)
196 else if (major > GEDCOM_PARSE_VERSION_MAJOR)
198 else if (minor < GEDCOM_PARSE_VERSION_MINOR)
200 else if (minor > GEDCOM_PARSE_VERSION_MINOR)
202 else if (patch <= GEDCOM_PARSE_VERSION_PATCH)