1 | /** |
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2 | * |
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3 | * @file xparser.c |
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4 | * @author Aleix Conchillo Flaque <aleix@member.fsf.org> |
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5 | * @date Tue Dec 03, 2002 00:21 |
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6 | * @brief SCEW private parser type declaration |
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7 | * |
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8 | * $Id: xparser.c,v 1.2 2004/05/25 20:23:05 aleix Exp $ |
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9 | * |
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10 | * @if copyright |
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11 | * |
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12 | * Copyright (C) 2002, 2003, 2004 Aleix Conchillo Flaque |
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13 | * |
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14 | * SCEW is free software; you can redistribute it and/or |
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15 | * modify it under the terms of the GNU Lesser General Public |
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16 | * License as published by the Free Software Foundation; either |
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17 | * version 2.1 of the License, or (at your option) any later version. |
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18 | * |
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19 | * SCEW is distributed in the hope that it will be useful, |
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20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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22 | * Lesser General Public License for more details. |
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23 | * |
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24 | * You should have received a copy of the GNU Lesser General Public |
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25 | * License along with this library; if not, write to the Free Software |
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26 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. |
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27 | * |
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28 | * @endif |
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29 | */ |
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30 | |
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31 | #include "xparser.h" |
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32 | |
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33 | #include "xerror.h" |
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34 | #include "xhandler.h" |
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35 | |
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36 | #include <assert.h> |
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37 | |
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38 | unsigned int |
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39 | init_expat_parser(scew_parser* parser) |
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40 | { |
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41 | assert(parser != NULL); |
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42 | |
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43 | parser->parser = XML_ParserCreate(NULL); |
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44 | if (parser->parser == NULL) |
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45 | { |
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46 | set_last_error(scew_error_no_memory); |
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47 | return 0; |
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48 | } |
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49 | |
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50 | /* initialize Expat handlers */ |
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51 | XML_SetXmlDeclHandler(parser->parser, xmldecl_handler); |
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52 | XML_SetElementHandler(parser->parser, start_handler, end_handler); |
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53 | // |
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54 | // commented out the line below because when using the |
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55 | // CharacterData Handler, expat replaces all entity references like, |
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56 | // < and >, with their equivalent translation. in this case, |
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57 | // actual '<' and '>' are placed in the xml file. to get around this, |
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58 | // XML_SetCharacterDataHandler was replaced with XML_SetDefaultHandler |
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59 | // the translation will be done when by the end user of this library. |
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60 | // dsk 20060402 |
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61 | // |
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62 | // XML_SetCharacterDataHandler(parser->parser, char_handler); |
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63 | XML_SetDefaultHandler(parser->parser, char_handler); |
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64 | XML_SetUserData(parser->parser, parser); |
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65 | |
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66 | return 1; |
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67 | } |
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68 | |
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69 | stack_element* |
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70 | stack_push(stack_element** stack, scew_element* element) |
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71 | { |
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72 | stack_element* new_elem = (stack_element*) calloc(1, sizeof(stack_element)); |
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73 | |
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74 | if (new_elem != NULL) |
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75 | { |
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76 | new_elem->element = element; |
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77 | if (stack != NULL) |
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78 | { |
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79 | new_elem->prev = *stack; |
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80 | } |
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81 | *stack = new_elem; |
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82 | } |
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83 | |
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84 | return new_elem; |
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85 | } |
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86 | |
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87 | scew_element* |
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88 | stack_pop(stack_element** stack) |
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89 | { |
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90 | scew_element* element = NULL; |
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91 | stack_element* sk_elem = NULL; |
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92 | |
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93 | if (stack != NULL) |
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94 | { |
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95 | sk_elem = *stack; |
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96 | if (sk_elem != NULL) |
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97 | { |
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98 | *stack = sk_elem->prev; |
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99 | element = sk_elem->element; |
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100 | free(sk_elem); |
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101 | } |
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102 | } |
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103 | |
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104 | return element; |
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105 | } |
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