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https://github.com/yanyiwu/cppjieba.git
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update cppcommon for trim
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27e3b1871c
commit
13421cd0e6
@ -1,7 +1,7 @@
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/************************************
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* file enc : utf8
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* author : wuyanyi09@gmail.com
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************************************/
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************************************/
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#include "str_functs.h"
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namespace CPPCOMMON
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@ -22,9 +22,9 @@ namespace CPPCOMMON
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return str;
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}
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if (n > -1)
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size = n + 1;
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size = n + 1;
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else
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size *= 2;
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size *= 2;
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}
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return str;
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}
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@ -91,7 +91,29 @@ namespace CPPCOMMON
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return str.substr(posL, posR - posL + 1);
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}
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//http://stackoverflow.com/questions/216823/whats-the-best-way-to-trim-stdstring
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// trim from start
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std::string <rim(std::string &s)
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{
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s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
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return s;
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}
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// trim from end
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std::string &rtrim(std::string &s)
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{
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s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
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return s;
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}
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// trim from both ends
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std::string &trim(std::string &s)
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{
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return ltrim(rtrim(s));
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}
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bool splitStrMultiPatterns(
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const string& strSrc,
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vector<string>& outVec,
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@ -176,208 +198,6 @@ namespace CPPCOMMON
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return res;
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}
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/*
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//unicode utf8 transform
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size_t unicodeToUtf8(uint16_t *in, size_t len, char * out)
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{
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size_t res = 0;
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for (int i = 0; i < len; i++)
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{
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uint16_t unicode = in[i];
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if (unicode >= 0x0000 && unicode <= 0x007f)
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{
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*out = (uint8_t)unicode;
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out += 1;
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res += 1;
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}
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else if (unicode >= 0x0080 && unicode <= 0x07ff)
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{
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*out = 0xc0 | (unicode >> 6);
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out += 1;
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*out = 0x80 | (unicode & (0xff >> 2));
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out += 1;
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res += 2;
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}
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else if (unicode >= 0x0800 && unicode <= 0xffff)
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{
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*out = 0xe0 | (unicode >> 12);
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out += 1;
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*out = 0x80 | ((unicode >> 6) & 0x3f);
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out += 1;
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*out = 0x80 | (unicode & 0x3f);
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out += 1;
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res += 3;
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}
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}
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*out = '\0';
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return res;
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}
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string unicodeToUtf8(const Unicode& unicode)
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{
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if(unicode.empty())
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{
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return "";
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}
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uint16_t * uniArr = new uint16_t[unicode.size() + 1];
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if(NULL == uniArr)
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{
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return "";
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}
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char * utfStr = new char[unicode.size() * 4 + 1];
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if(NULL == utfStr)
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{
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delete [] uniArr;
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return "";
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}
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for(uint i = 0; i < unicode.size(); i++)
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{
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uniArr[i] = unicode[i];
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}
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string res("");
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size_t utfLen = unicodeToUtf8(uniArr, unicode.size(), utfStr);
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if(0 != utfLen)
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{
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res = utfStr;
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}
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delete [] uniArr;
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delete [] utfStr;
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return res;
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}
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*/
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/*from: http://www.cppblog.com/lf426/archive/2008/03/31/45796.html */
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//int utf8ToUnicode(const char* inutf8, int len, uint16_t* unicode)
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//{
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// int length;
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// const unsigned char* utf8 = (const unsigned char*) inutf8;
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// const unsigned char* t = (const unsigned char*) inutf8;
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// length = 0;
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// while (utf8 - t < len)
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// {
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// if ( *(unsigned char *) utf8 <= 0x7f )
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// {
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// //expand with 0s.
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// *unicode++ = *utf8++;
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// }
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// //2 byte.
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// else if ( *(unsigned char *) utf8 <= 0xdf )
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// {
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// *unicode++ = ((*(unsigned char *) utf8 & 0x1f) << 6) + ((*(unsigned char *) (utf8 + 1)) & 0x3f);
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// utf8 += 2;
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// }
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// //3 byte.Chinese may use 3 byte.
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// else {
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// *unicode++ = ((int) (*(unsigned char *) utf8 & 0x0f) << 12) +
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// ((*(unsigned char *) (utf8 + 1) & 0x3f) << 6) +
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// (*(unsigned char *) (utf8 + 2) & 0x3f);
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// utf8 += 3;
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// }
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// length++;
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// }
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// //*unicode = 0; !! this may cause out range of array;
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// return length;
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//}
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//bool utf8ToUnicode(const string& utfStr, Unicode& unicode)
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//{
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// unicode.clear();
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// if(utfStr.empty())
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// {
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// return false;
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// }
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// uint16_t* pUni = new uint16_t[utfStr.size() + 1];
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// if(NULL == pUni)
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// {
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// return false;
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// }
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// size_t uniLen = utf8ToUnicode(utfStr.c_str(), utfStr.size(), pUni);
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// for(uint i = 0; i < uniLen; i++)
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// {
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// unicode.push_back(pUni[i]);
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// }
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// delete [] pUni;
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// return true;
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//}
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////iconv
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//int code_convert(const char *from_charset,const char *to_charset,char *inbuf,size_t inlen,char *outbuf,size_t outlen)
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//{
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// iconv_t cd;
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// char **pin = &inbuf;
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// char **pout = &outbuf;
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// cd = iconv_open(to_charset,from_charset);
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// if (cd==NULL)
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// {
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// return -1;
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// }
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// memset(outbuf,0,outlen);
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// size_t ret = iconv(cd,pin,&inlen,pout,&outlen);
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// if (ret == -1)
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// {
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// //cout<<__FILE__<<__LINE__<<endl;
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// return -1;
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// }
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// iconv_close(cd);
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// return 0;
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//}
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////gbk -> utf8
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//string gbkToUtf8(const string& gbk)
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//{
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// if(gbk.empty())
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// {
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// return "";
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// }
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// string res("");
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// size_t maxLen = gbk.size()*4 + 1;
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// char * pUtf = new char[maxLen];
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// if(NULL == pUtf)
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// {
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// return "";
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// }
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// int ret = code_convert("gbk", "utf-8", (char *)gbk.c_str(), gbk.size(), pUtf, maxLen);
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// if(ret == -1)
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// {
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// delete [] pUtf;
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// return res;
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// }
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// res = pUtf;
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// delete [] pUtf;
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// return res;
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//}
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////utf8 -> gbk
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//string utf8ToGbk(const string& utf)
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//{
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// //cout<<__FILE__<<__LINE__<<gbk<<endl;
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// string res;
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// size_t maxLen = utf.size()*4 + 1;
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// char * pGbk = new char[maxLen];
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// if(NULL == pGbk)
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// {
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// return "";
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// }
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// int ret = code_convert("utf-8", "gbk", (char *)utf.c_str(), utf.size(), pGbk, maxLen);
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// if(ret == -1)
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// {
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// delete [] pGbk;
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// return "";
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// }
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// res = pGbk;
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// delete [] pGbk;
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// return res;
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//}
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//
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//unicode str to vec
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bool uniStrToVec(const string& str, Unicode& vec)
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{
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@ -440,22 +260,22 @@ int main()
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//
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//s = "ab1ba2ab3";
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//cout<<replaceStr(s,"ab","###")<<endl;
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//ifstream ifile("testdata/dict.txt");
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//string line;
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//while(getline(ifile, line))
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//{
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// uint16_t strbuf[1024];
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//ifstream ifile("testdata/dict.txt");
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//string line;
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//while(getline(ifile, line))
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//{
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// uint16_t strbuf[1024];
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// size_t unilen = utf8ToUnicode(line.c_str(), line.size(), strbuf);
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// for(int i = 0; i < unilen; i++)
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// {
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// // printf("%x\n", strbuf[i]);
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// }
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// char utf8str[512]={0};
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// unicodeToUtf8(strbuf, unilen, utf8str);
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// //cout<<strlen(utf8str);
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// cout<<utf8str<<endl;
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//}
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// size_t unilen = utf8ToUnicode(line.c_str(), line.size(), strbuf);
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// for(int i = 0; i < unilen; i++)
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// {
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// // printf("%x\n", strbuf[i]);
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// }
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// char utf8str[512]={0};
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// unicodeToUtf8(strbuf, unilen, utf8str);
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// //cout<<strlen(utf8str);
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// cout<<utf8str<<endl;
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//}
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//cout<<string_format("hehe%s11asd%dasf","[here]",2);
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//ifstream ifile("testdata/dict.gbk");
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//string line;
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@ -481,12 +301,15 @@ int main()
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// s = utf8ToGbk(s);
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// cout<<s<<endl;
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//}
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cout<<strStartsWith("--help","--")<<endl;
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cout<<strStartsWith("--help","-")<<endl;
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cout<<strStartsWith("--help","he")<<endl;
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cout<<strStartsWith("help","help")<<endl;
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cout<<strStartsWith("","help")<<endl;
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cout<<strStartsWith("hel","")<<endl;
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//cout<<strStartsWith("--help","--")<<endl;
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//cout<<strStartsWith("--help","-")<<endl;
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//cout<<strStartsWith("--help","he")<<endl;
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//cout<<strStartsWith("help","help")<<endl;
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//cout<<strStartsWith("","help")<<endl;
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//cout<<strStartsWith("hel","")<<endl;
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string s(" helloword heh\t");
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string b;
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cout<<trim(b)<<"11"<<endl;
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return 0;
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}
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#endif
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@ -17,6 +17,8 @@
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#include <iconv.h>
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#include <memory.h>
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#include "typedefs.h"
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#include <functional>
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#include <locale>
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namespace CPPCOMMON
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{
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using namespace std;
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@ -33,18 +35,12 @@ namespace CPPCOMMON
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string lowerStr(const string& str);
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string replaceStr(const string& strSrc, const string& oldStr, const string& newStr, int count = -1);
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string stripStr(const string& str, const string& patternstr = " \n\t");
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std::string <rim(std::string &s) ;
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std::string &rtrim(std::string &s) ;
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std::string &trim(std::string &s) ;
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unsigned int countStrDistance(const string& A, const string& B);
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unsigned int countStrSimilarity(const string& A, const string& B);
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//encode
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//size_t unicodeToUtf8(uint16_t *in, size_t len, char * out);
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//string unicodeToUtf8(const Unicode& unicode);
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//int utf8ToUnicode(const char* inutf8, int len, uint16_t* unicode);
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//bool utf8ToUnicode(const string& utfStr, Unicode& unicode);
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//int code_convert(const char *from_charset,const char *to_charset,char *inbuf,size_t inlen,char *outbuf,size_t outlen);
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//string gbkToUtf8(const string& gbk);
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//string utf8ToGbk(const string& utf);
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bool uniStrToVec(const string& str, Unicode& vec);
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string uniVecToStr(const Unicode& vec);
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