charset_utils.hpp
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/*
* File: charset_utils.hpp
* Author: lennyn
*
* Created on November 15, 2013, 1:57 PM
*/
#ifndef CHARSET_UTILS_HPP
#define CHARSET_UTILS_HPP
#include <string>
#include <set>
#include <algorithm>
#include "CharsetConverter.hpp"
static inline std::vector<uint32_t> initializeWhitespaces() {
std::vector<uint32_t> res;
res.push_back(0x0000); // NULL
res.push_back(0x0009); // CHARACTER TABULATION
res.push_back(0x000A); // LINE FEED (LF)
res.push_back(0x000B); // LINE TABULATION
res.push_back(0x000C); // FORM FEED (FF)
res.push_back(0x000D); // CARRIAGE RETURN (CR)
res.push_back(0x001C); // INFORMATION SEPARATOR FOUR
res.push_back(0x001D); // INFORMATION SEPARATOR THREE
res.push_back(0x001E); // INFORMATION SEPARATOR TWO
res.push_back(0x001F); // INFORMATION SEPARATOR ONE
res.push_back(0x0020); // SPACE
res.push_back(0x0085); // NEXT LINE (NEL)
res.push_back(0x00A0); // NON-BREAKING SPACE
res.push_back(0x1680); // OGHAM SPACE MARK
res.push_back(0x180E); // MONGOLIAN VOWEL SEPARATOR
res.push_back(0x2000); // EN QUAD
res.push_back(0x2001); // EM QUAD
res.push_back(0x2002); // EN SPACE
res.push_back(0x2003); // EM SPACE
res.push_back(0x2004); // THREE-PER-EM SPACE
res.push_back(0x2005); // FOUR-PER-EM SPACE
res.push_back(0x2006); // SIX-PER-EM SPACE
res.push_back(0x2007); // FIGURE SPACE
res.push_back(0x2008); // PUNCTUATION SPACE
res.push_back(0x2009); // THIN SPACE
res.push_back(0x200A); // HAIR SPACE
res.push_back(0x2028); // LINE SEPARATOR
res.push_back(0x2029); // PARAGRAPH SEPARATOR
res.push_back(0x205F); // MEDIUM MATHEMATICAL SPACE
res.push_back(0x3000); // IDEOGRAPHIC SPACE
return res;
}
inline bool isEndOfWord(uint32_t codepoint) {
static std::vector<uint32_t> whitespaces(initializeWhitespaces());
return std::binary_search(whitespaces.begin(), whitespaces.end(), codepoint);
// return whitespaces.count(codepoint);
}
template <class StateClass>
void feedState(
StateClass& state,
int codepoint,
const CharsetConverter& charsetConverter) {
std::string chars;
charsetConverter.append(codepoint, chars);
for (unsigned int i = 0; i < chars.length(); i++) {
state.proceedToNext(chars[i]);
}
}
#endif /* CHARSET_UTILS_HPP */