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#include "stdafx.h"
#include "striphtml.h"
#include "ekhtml.h"
#include "entities.h"
void starttag_cb (void *cbdata, ekhtml_string_t *tag, ekhtml_attr_t *attrs) {
STRIPHTML_DATA *data = (STRIPHTML_DATA *)cbdata;
switch (tag->len) {
case 1:
switch (*(tag->str)) {
case 'a':
case 'A':
{
ekhtml_attr_t *attr = attrs;
while (attr) {
if (_strnicmp(attr->name.str, "href", attr->name.len)==0) {
data->stack.push(strncpy((char*)mir_calloc(attr->val.len+1), attr->val.str, attr->val.len));
break;
}
}
}break;
case 'i':
case 'I':
data->buffer.append(" *");
break;
case 'b':
case 'B':
data->buffer.append(" _");
break;
}
case 2:
if (toupper(tag->str[0]) == 'B' && toupper(tag->str[1]) == 'R')
data->buffer.append("\r\n");
break;
case 3:
if (_strnicmp(tag->str, "img", 3) == 0) {
ekhtml_attr_t *attr = attrs;
data->buffer.append("IMAGE [ ");
while (attr) {
if (_strnicmp(attr->name.str, "src", attr->name.len)==0) {
data->buffer.append(attr->val.str, attr->val.len);
break;
}
}
data->buffer.append(" ] ");
}
break;
}
}
void endtag_cb (void *cbdata, ekhtml_string_t *tag) {
STRIPHTML_DATA *data = (STRIPHTML_DATA *)cbdata;
switch (tag->len) {
case 1:
switch (*(tag->str)) {
case 'a':
case 'A':
if (data->stack.empty()) break;
data->buffer.append(" [ ");
data->buffer.append(data->stack.top());
mir_free(data->stack.top());
data->stack.pop();
data->buffer.append(" ] ");
break;
case 'i':
case 'I':
data->buffer.append("* ");
break;
case 'b':
case 'B':
data->buffer.append("_ ");
break;
}
}
}
void data_cb (void *cbdata, ekhtml_string_t *text) {
STRIPHTML_DATA *data = (STRIPHTML_DATA *)cbdata;
char* s = (char*) mir_calloc(text->len+1);
decode_html_entities_utf8(s, text->str, text->len);
if (!data->stack.empty()) {
char *top = data->stack.top();
if (_stricmp(s, top)==0) {
mir_free(top);
data->stack.pop();
}
}
data->buffer.append(s);
mir_free(s);
}
char * striphtml(char *html) {
STRIPHTML_DATA data;
ekhtml_string_t ekstring;
ekstring.len = strlen(html);
ekstring.str = html;
data.buffer.clear();
data.buffer.reserve(ekstring.len);
ekhtml_parser_t *parser = ekhtml_parser_new(&data);
ekhtml_parser_datacb_set(parser, &data_cb);
ekhtml_parser_startcb_add(parser, NULL, &starttag_cb);
ekhtml_parser_endcb_add(parser, NULL, &endtag_cb);
ekhtml_parser_feed(parser, &ekstring);
ekhtml_parser_flush(parser, 1);
while (!data.stack.empty()) {
mir_free(data.stack.top());
data.stack.pop();
}
ekhtml_parser_destroy(parser);
char *s = mir_strdup(data.buffer.c_str());
data.buffer.erase();
return s;
//ekhtml_parser_create(
}
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