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  1. #include <iostream>
  2. #include <sstream>
  3. #include <string>
  4.  
  5. // ----- Definitions from the general purpose library -----
  6. // This is the C-based XML parser object
  7. struct XmlParser
  8. {
  9. int dummy;
  10. };
  11.  
  12. // The read function our parser uses to get more data
  13. typedef int (*xmlReadFn)(void* user_data, char* s, int len);
  14.  
  15. #define BUF_SIZE 5
  16.  
  17. // The parse function for our parser
  18. void xmlParse(XmlParser* parser, xmlReadFn read_fn, void* user_data)
  19. {
  20.    char buf[BUF_SIZE];
  21.    int read_len;
  22.    do
  23.    {
  24.       read_len = read_fn(user_data, buf, BUF_SIZE);
  25.       // Here I'm just printing out what we read, one chunk per line
  26.       std::string str(buf, read_len);
  27.       std::cout << str << std::endl;
  28.    }
  29.    while (read_len == BUF_SIZE);
  30. }
  31.  
  32. // ----- Our implementation -----
  33.  
  34. // This is our implementation of the xmlReadFn function
  35. int readFromStream(void* user_data, char* s, int len)
  36. {
  37.    std::istream* str = (std::istream*)user_data;
  38.    return str->readsome(s, len);
  39. }
  40.  
  41. int main()
  42. {
  43.    // Allocate the parser
  44.    XmlParser parser;
  45.  
  46.    // Construct the stream we want to read from. Normally, this would come from a file
  47.    std::stringstream str("The quick brown fox ran over the lazy dog.");
  48.  
  49.    xmlParse(&parser, readFromStream, &str);
  50.  
  51.    return 0;
  52. }
Success #stdin #stdout 0.02s 2860KB
comments (?)
stdin
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Standard input is empty
stdout
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The q
uick 
brown
 fox 
ran o
ver t
he la
zy do
g.
https://ideone.com/4Daryg
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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