1 | /**
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2 | * section: xmlReader
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3 | * synopsis: Parse an XML file with an xmlReader
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4 | * purpose: Demonstrate the use of xmlReaderForFile() to parse an XML file
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5 | * and dump the information about the nodes found in the process.
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6 | * (Note that the XMLReader functions require libxml2 version later
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7 | * than 2.6.)
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8 | * usage: reader1 <filename>
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9 | * test: reader1 test2.xml > reader1.tmp && diff reader1.tmp $(srcdir)/reader1.res
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10 | * author: Daniel Veillard
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11 | * copy: see Copyright for the status of this software.
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12 | */
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13 |
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14 | #include <stdio.h>
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15 | #include <libxml/xmlreader.h>
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16 |
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17 | #ifdef LIBXML_READER_ENABLED
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18 |
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19 | /**
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20 | * processNode:
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21 | * @reader: the xmlReader
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22 | *
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23 | * Dump information about the current node
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24 | */
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25 | static void
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26 | processNode(xmlTextReaderPtr reader) {
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27 | const xmlChar *name, *value;
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28 |
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29 | name = xmlTextReaderConstName(reader);
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30 | if (name == NULL)
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31 | name = BAD_CAST "--";
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32 |
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33 | value = xmlTextReaderConstValue(reader);
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34 |
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35 | printf("%d %d %s %d %d",
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36 | xmlTextReaderDepth(reader),
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37 | xmlTextReaderNodeType(reader),
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38 | name,
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39 | xmlTextReaderIsEmptyElement(reader),
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40 | xmlTextReaderHasValue(reader));
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41 | if (value == NULL)
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42 | printf("\n");
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43 | else {
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44 | if (xmlStrlen(value) > 40)
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45 | printf(" %.40s...\n", value);
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46 | else
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47 | printf(" %s\n", value);
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48 | }
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49 | }
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50 |
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51 | /**
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52 | * streamFile:
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53 | * @filename: the file name to parse
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54 | *
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55 | * Parse and print information about an XML file.
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56 | */
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57 | static void
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58 | streamFile(const char *filename) {
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59 | xmlTextReaderPtr reader;
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60 | int ret;
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61 |
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62 | reader = xmlReaderForFile(filename, NULL, 0);
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63 | if (reader != NULL) {
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64 | ret = xmlTextReaderRead(reader);
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65 | while (ret == 1) {
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66 | processNode(reader);
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67 | ret = xmlTextReaderRead(reader);
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68 | }
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69 | xmlFreeTextReader(reader);
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70 | if (ret != 0) {
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71 | fprintf(stderr, "%s : failed to parse\n", filename);
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72 | }
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73 | } else {
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74 | fprintf(stderr, "Unable to open %s\n", filename);
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75 | }
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76 | }
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77 |
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78 | int main(int argc, char **argv) {
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79 | if (argc != 2)
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80 | return(1);
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81 |
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82 | /*
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83 | * this initialize the library and check potential ABI mismatches
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84 | * between the version it was compiled for and the actual shared
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85 | * library used.
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86 | */
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87 | LIBXML_TEST_VERSION
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88 |
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89 | streamFile(argv[1]);
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90 |
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91 | /*
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92 | * Cleanup function for the XML library.
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93 | */
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94 | xmlCleanupParser();
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95 | /*
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96 | * this is to debug memory for regression tests
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97 | */
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98 | xmlMemoryDump();
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99 | return(0);
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100 | }
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101 |
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102 | #else
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103 | int main(void) {
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104 | fprintf(stderr, "XInclude support not compiled in\n");
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105 | exit(1);
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106 | }
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107 | #endif
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