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mypdfparser.cc
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mypdfparser.cc
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#include "mypdfparser.h"
#include <iostream>
#include <vector>
#include <string>
#include <stdlib.h>
using namespace std;
MyPdfParser::MyPdfParser(std::vector<std::vector<TextElement> > *& te)
: xmlpp::SaxParser()
{
pageElements = te;
}
MyPdfParser::~MyPdfParser()
{
}
void MyPdfParser::split(const string& s, char c,
vector<string>& v) {
string::size_type i = 0;
string::size_type j = s.find(c);
while (j != string::npos) {
v.push_back(s.substr(i, j-i));
i = ++j;
j = s.find(c, j);
if (j == string::npos)
v.push_back(s.substr(i, s.length()));
}
}
void MyPdfParser::on_start_document()
{
//std::cout << "on_start_document()" << std::endl;
}
void MyPdfParser::on_end_document()
{
pageElements->push_back(currElem);
//std::cout << "on_end_document()" << std::endl;
}
void MyPdfParser::on_start_element(const Glib::ustring& name,
const AttributeList& attributes)
{
//std::cout << "node name=" << name << std::endl;
//std::cout << "node name=" <<name.compare("span")<< std::endl;
if (name.compare("page") == 0) {
new_element = true;
// cout<<currElem.size()<<" kdjflkkljd "<<endl;
if (currElem.size() != 0) {
pageElements->push_back(currElem);
currElem.clear();
}
line_left = left_;
line_bottom = bottom;
line_right = right_;
line_top = top;
first_in_line = true;
} else if (name.compare("text") == 0 ) {
new_element = true;
//std::cout << "attribute" << attributes[0].value << std::endl;
//std::cout << "attribute" << attributes[2].value << std::endl;
//std::string bbox = attributes[2].value.split(";")[0];
////std::cout << "attribute" << bbox << std::endl;
prev_left = left_;
prev_bottom = bottom;
prev_right = right_;
prev_top = top;
top = atoi(attributes[0].value.c_str());
left_ = atoi(attributes[1].value.c_str());
bottom = atoi(attributes[3].value.c_str()) + top;
right_ = atoi(attributes[2].value.c_str()) + left_;
}
}
void MyPdfParser::on_end_element(const Glib::ustring& name)
{
////std::cout << "on_end_element()" << std::endl;
}
void MyPdfParser::on_characters(const Glib::ustring& text)
{
std::string whitespaces (" \t\f\v\n\r");
//std::cout <<" jkd "<< text.size()<<" "<<(text.find_first_not_of(whitespaces) == std::string::npos) << " "<< text <<std::endl;
//std::cout<< first_in_line<< " "<<prev_right<< " " << left_ << " "<< line_bottom << " "<<line_top<<" " <<line_bottom - line_top << " " <<left_ - prev_right<<endl;
//std::cout << " " << text << " ";
if( new_element || (first_in_line ) ) {
// std::cout << "One Element "<<current_element << " " <<current_element_left << " "<<current_element_right << " "<<current_element_top<<" "<<current_element_bottom<<endl;
current_element = text;
current_element_right = right_;
current_element_top = top;
current_element_bottom = bottom;
current_element_left = left_;
if (!current_element.empty()) {
TextElement* t = new TextElement(current_element,current_element_top,current_element_left,(current_element_right-current_element_left),(current_element_bottom - current_element_top),-1,"text","text");
currElem.push_back(*t);
// std::cout<<" - "<<currElem.size();
}
}
first_in_line = false;
new_element = false;
}
void MyPdfParser::on_comment(const Glib::ustring& text)
{
//std::cout << "on_comment(): " << text << std::endl;
}
void MyPdfParser::on_warning(const Glib::ustring& text)
{
//std::cout << "on_warning(): " << text << std::endl;
}
void MyPdfParser::on_error(const Glib::ustring& text)
{
//std::cout << "on_error(): " << text << std::endl;
}
void MyPdfParser::on_fatal_error(const Glib::ustring& text)
{
//std::cout << "on_fatal_error(): " << text << std::endl;
}