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();
126 if (!setlocale(LC_ALL, "")
127 || ! bindtextdomain(PACKAGE, LOCALEDIR)
128 || ! bind_textdomain_codeset(PACKAGE, INTERNAL_ENCODING))
134 int gedcom_parse_file(const char* file_name)
141 gedcom_error(_("Internal error: GEDCOM parser not initialized"));
144 file = fopen(file_name, "r");
146 gedcom_error(_("Could not open file '%s': %s"),
147 file_name, strerror(errno));
151 enc = determine_encoding(file);
153 if (lexer_init(enc, file)) {
156 result = gedcom_parse();
159 result = check_xref_table();
169 int gedcom_new_model()
174 file = fopen(NEW_MODEL_FILE, "r");
177 result = gedcom_parse_file(NEW_MODEL_FILE);
180 char* filename = (char*) malloc(strlen(PKGDATADIR) + strlen(NEW_MODEL_FILE)
185 sprintf(filename, "%s/%s", PKGDATADIR, NEW_MODEL_FILE);
186 result = gedcom_parse_file(filename);
193 int gedcom_check_version(int major, int minor, int patch)
195 if (major < GEDCOM_PARSE_VERSION_MAJOR)
197 else if (major > GEDCOM_PARSE_VERSION_MAJOR)
199 else if (minor < GEDCOM_PARSE_VERSION_MINOR)
201 else if (minor > GEDCOM_PARSE_VERSION_MINOR)
203 else if (patch <= GEDCOM_PARSE_VERSION_PATCH)