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t-mat/rapidxml-example.cpp

Last active August 11, 2022 19:12
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Revisions

  1. t-mat revised this gist Feb 9, 2014. 1 changed file with 1 addition and 3 deletions.
    4 changes: 1 addition & 3 deletions rapidxml-example.cpp
    View file
    Original file line number Diff line number Diff line change
    @@ -85,9 +85,7 @@ std::vector<char> loadFile(const String& filename) {


    int main(int argc, const char* argv[]) {
    using Char = std::remove_const<std::remove_reference<decltype(**argv)>::type>::type;
    using String = std::basic_string<Char>;
    const auto args = std::vector<String>(argv+1, argv+argc);
    const auto args = std::vector<std::string>(argv+1, argv+argc);
    for(const auto& arg : args) {
    const auto xmlFile = loadFile(arg);
    if(! xmlFile.empty()) {
  2. t-mat revised this gist Feb 9, 2014. 1 changed file with 11 additions and 8 deletions.
    19 changes: 11 additions & 8 deletions rapidxml-example.cpp
    View file
    Original file line number Diff line number Diff line change
    @@ -12,7 +12,7 @@
    #include <cstdint>

    #if defined(RAPIDXML_NO_EXCEPTIONS)
    void rapidxml::parse_error_handler(const char *what, void *where) {
    void rapidxml::parse_error_handler(const char* what, void* where) {
    printf("Parse error(@%p): %s\n", where, what);
    std::abort();
    }
    @@ -71,22 +71,25 @@ void processXmlFile(const char* data) {
    }


    std::vector<char> loadFile(const char* filename) {
    template<class String>
    std::vector<char> loadFile(const String& filename) {
    std::vector<char> file;
    if(std::ifstream is { filename, is.binary | is.ate }) {
    // NOTE : `+1` for terminal NUL(0x00) character
    file.resize(static_cast<size_t>(is.tellg()) + 1);
    file.resize(static_cast<size_t>(is.tellg()));
    is.seekg(0);
    is.read(file.data(), file.size() - 1);
    file.back() = '\0';
    is.read(file.data(), file.size());
    file.push_back(0);
    }
    return file;
    }


    int main(int argc, const char* argv[]) {
    for(int iarg = 1; iarg < argc; ++iarg) {
    std::vector<char> xmlFile = loadFile(argv[iarg]);
    using Char = std::remove_const<std::remove_reference<decltype(**argv)>::type>::type;
    using String = std::basic_string<Char>;
    const auto args = std::vector<String>(argv+1, argv+argc);
    for(const auto& arg : args) {
    const auto xmlFile = loadFile(arg);
    if(! xmlFile.empty()) {
    const auto tmp = xmlFile;
    processXmlFile(xmlFile.data());
  3. t-mat revised this gist Jan 5, 2014. 1 changed file with 68 additions and 32 deletions.
    100 changes: 68 additions & 32 deletions rapidxml-example.cpp
    View file
    Original file line number Diff line number Diff line change
    @@ -1,3 +1,4 @@
    // RapidXml : http://rapidxml.sourceforge.net/
    #include <cstddef>
    #include <cassert>
    #define RAPIDXML_NO_STDLIB
    @@ -17,48 +18,83 @@ void rapidxml::parse_error_handler(const char *what, void *where) {
    }
    #endif


    void walk(const rapidxml::xml_node<>* node, int indent = 0) {
    if(0 == indent) {
    printf("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n");
    }
    const auto ind = std::string(indent * 4, ' ');
    printf("%s", ind.c_str());

    const auto* name = node->name();
    printf("%*s<%s", indent*2 , "", name);
    for(const auto* attr = node->first_attribute(); attr; attr = attr->next_attribute()) {
    const auto* name = attr->name();
    const auto* val = attr->value();
    printf(" %s=\"%s\"", name, val);
    const rapidxml::node_type t = node->type();
    switch(t) {
    case rapidxml::node_element:
    {
    printf("<%.*s", node->name_size(), node->name());
    for(const rapidxml::xml_attribute<>* a = node->first_attribute()
    ; a
    ; a = a->next_attribute()
    ) {
    printf(" %.*s", a->name_size(), a->name());
    printf("='%.*s'", a->value_size(), a->value());
    }
    printf(">\n");

    for(const rapidxml::xml_node<>* n = node->first_node()
    ; n
    ; n = n->next_sibling()
    ) {
    walk(n, indent+1);
    }
    printf("%s</%.*s>\n", ind.c_str(), node->name_size(), node->name());
    }
    break;

    case rapidxml::node_data:
    printf("DATA:[%.*s]\n", node->value_size(), node->value());
    break;

    default:
    printf("NODE-TYPE:%d\n", t);
    break;
    }
    }

    const auto* n = node->first_node();

    if(n) {
    printf(">\n");
    for(; n; n = n->next_sibling()) {
    walk(n, indent+1);
    }
    printf("%*s</%s>\n", indent*2, "", name);
    } else {
    printf(" />\n");
    void processXmlFile(const char* data) {
    enum {
    PARSE_FLAGS = rapidxml::parse_non_destructive
    };

    // NOTE : There is a `const_cast<>`, but `rapidxml::parse_non_destructive`
    // guarantees `data` is not overwritten.
    rapidxml::xml_document<> xmlDoc;
    xmlDoc.parse<PARSE_FLAGS>(const_cast<char*>(data));
    walk(xmlDoc.first_node());
    }


    std::vector<char> loadFile(const char* filename) {
    std::vector<char> file;
    if(std::ifstream is { filename, is.binary | is.ate }) {
    // NOTE : `+1` for terminal NUL(0x00) character
    file.resize(static_cast<size_t>(is.tellg()) + 1);
    is.seekg(0);
    is.read(file.data(), file.size() - 1);
    file.back() = '\0';
    }
    return file;
    }


    int main(int argc, const char* argv[]) {
    for(int iarg = 1; iarg < argc; ++iarg) {
    std::ifstream is { argv[iarg] };
    if(is) {
    std::vector<char> xml;
    is.seekg(0, is.end);
    xml.resize(static_cast<size_t>(is.tellg()) + 1);
    is.seekg(0);
    is.read(xml.data(), xml.size() - 1);
    xml.back() = '\0';

    rapidxml::xml_document<> xmlDoc;
    xmlDoc.parse<0>(xml.data());

    const auto* root = xmlDoc.first_node();
    walk(root);
    std::vector<char> xmlFile = loadFile(argv[iarg]);
    if(! xmlFile.empty()) {
    const auto tmp = xmlFile;
    processXmlFile(xmlFile.data());

    // check for const correctness
    if(memcmp(xmlFile.data(), tmp.data(), tmp.size()) != 0) {
    printf("ERROR: xmlFile is overwritten.\n");
    }
    }
    }
    }
  4. t-mat created this gist Oct 25, 2013.
    64 changes: 64 additions & 0 deletions rapidxml-example.cpp
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,64 @@
    #include <cstddef>
    #include <cassert>
    #define RAPIDXML_NO_STDLIB
    #define RAPIDXML_NO_EXCEPTIONS
    #include "rapidxml-1.13/rapidxml.hpp"

    #include <stdio.h>
    #include <string>
    #include <vector>
    #include <fstream>
    #include <cstdint>

    #if defined(RAPIDXML_NO_EXCEPTIONS)
    void rapidxml::parse_error_handler(const char *what, void *where) {
    printf("Parse error(@%p): %s\n", where, what);
    std::abort();
    }
    #endif

    void walk(const rapidxml::xml_node<>* node, int indent = 0) {
    if(0 == indent) {
    printf("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n");
    }

    const auto* name = node->name();
    printf("%*s<%s", indent*2 , "", name);
    for(const auto* attr = node->first_attribute(); attr; attr = attr->next_attribute()) {
    const auto* name = attr->name();
    const auto* val = attr->value();
    printf(" %s=\"%s\"", name, val);
    }

    const auto* n = node->first_node();

    if(n) {
    printf(">\n");
    for(; n; n = n->next_sibling()) {
    walk(n, indent+1);
    }
    printf("%*s</%s>\n", indent*2, "", name);
    } else {
    printf(" />\n");
    }
    }

    int main(int argc, const char* argv[]) {
    for(int iarg = 1; iarg < argc; ++iarg) {
    std::ifstream is { argv[iarg] };
    if(is) {
    std::vector<char> xml;
    is.seekg(0, is.end);
    xml.resize(static_cast<size_t>(is.tellg()) + 1);
    is.seekg(0);
    is.read(xml.data(), xml.size() - 1);
    xml.back() = '\0';

    rapidxml::xml_document<> xmlDoc;
    xmlDoc.parse<0>(xml.data());

    const auto* root = xmlDoc.first_node();
    walk(root);
    }
    }
    }