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Modest/examples/myhtml/modify_and_serialize.c
2017-03-14 11:28:54 +03:00

73 lines
1.6 KiB
C

/**
* modify_and_serialize.c
*
* Test script that checks whether a document can be read, modified and
* serialized
*
* @author Emiel Bruijntjes <emiel.bruijntjes@copernica.com>
* @copyright 2016 Copernica BV
*/
/**
* Dependencies
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <myhtml/serialization.h>
/**
* Write output
* @param buffer
* @param size
* @param ptr
*/
mystatus_t write_output(const char* data, size_t len, void* ctx)
{
printf("%.*s", (int)len, data);
return MyCORE_STATUS_OK;
}
/**
* Main procedure
* @return int
*/
int main()
{
// initalize html engine
myhtml_t *myhtml = myhtml_create();
myhtml_init(myhtml, MyHTML_OPTIONS_DEFAULT, 1, 0);
// init tree
myhtml_tree_t *tree = myhtml_tree_create();
myhtml_tree_init(tree, myhtml);
// input string
const char *input = "<html><head></head><body><a href=http://nu.nl></body></html>";
// parse html
myhtml_parse(tree, MyENCODING_UTF_8, input, strlen(input));
// collection of links
myhtml_collection_t *collection = myhtml_get_nodes_by_name(tree, NULL, "a", 1, NULL);
// iterate over all nodes
for (size_t i = 0; i < collection->length; ++i)
{
// add attribute
myhtml_attribute_add(collection->list[i], "title", 5, "my value", 8, MyENCODING_UTF_8);
}
// write the document again
myhtml_serialization_tree_callback(myhtml_tree_get_document(tree), write_output, NULL);
myhtml_collection_destroy(collection);
myhtml_tree_destroy(tree);
myhtml_destroy(myhtml);
// done
return 0;
}