PocoRegex Experiment.

ofApp.cpp

// =============================================================================
//
// Copyright (c) 2014 Christopher Baker <http://christopherbaker.net>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
// =============================================================================


#include "ofApp.h"
#include "Poco/RegularExpression.h"



void ofApp::setup()
{

    std::string haystack = "廢】跟我家那隻臘腸(據說是牧羊犬)亂聊，他說我是壓力鍋，然後...我想到...如果壓力鍋具有攻擊性是怎樣攻擊，蒸氣嗎???\n接著我幻想起鍋子大戰\n壓力鍋vs平底鍋\n燉鍋vs快鍋";

    try
    {
        // This regex matches the 我 characther optionally surrounded by any number of unicode characters
        // with the property Unicode property of "Letter" (\p{L}).  In order to work correctly, the regex
        // pattern must be compiled with Poco::RegularExpression::RE_UTF8.
        Poco::RegularExpression regex("([\\p{L}]+)?我([\\p{L}]+)?", Poco::RegularExpression::RE_UTF8);


        Poco::RegularExpression::Match theMatch;
        std::string::size_type haystackOffset = 0;

        std::vector<std::string> needles;

        // This while loop moves through the "haystack" and returns any match.
        // when a match is found, the search offset is incremented to skip over 
        // the last known match and the search resumes until the end of the string
        // is reached.
        while (regex.match(haystack, haystackOffset, theMatch))
        {
            haystackOffset = theMatch.offset + theMatch.length;
            needles.push_back(std::string(haystack, theMatch.offset, theMatch.length));
        }

        // Print the needles.
        for (int i = 0; i < needles.size(); ++i)
        {
            std::cout << needles[i] << std::endl;
        }
    }
    catch (const Poco::RegularExpressionException& exc)
    {
        std::cout << exc.displayText() << std::endl;
    }
}

ofApp.h

// =============================================================================
//
// Copyright (c) 2014 Christopher Baker <http://christopherbaker.net>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
// =============================================================================


#pragma once


#include "ofMain.h"


class ofApp: public ofBaseApp
{
public:
    void setup();

};

Output.txt

Should print out:

跟我家那隻臘腸
他說我是壓力鍋
我想到
接著我幻想起鍋子大戰

By the way, all of these PCRE unicode property fields are available in Poco http://www.regular-expressions.info/unicode.html