c ++中的疑难解答替换字符串程序 [英] troubleshooting in c++ Replace the string program
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问题描述
#include "stdafx.h"
#include <iostream>
#include<stdio.h>
#include <string>
#include<cctype>
#include<stdlib.h>
#include<fstream>
#include<iterator>
#include<list>
#include <functional>
#include <algorithm>
#include<vector>
using namespace std;
class sample
{
public:
static auto checkForCurrency = [](char *&prevPtr, char *&p)->bool
{
char *origPrevPtr = prevPtr;
char *origPtr = p;
static const unsigned char CentSymbol = 155;
//static const unsigned char EuroSymbol = ??; //doesn't seem to be an ASCII char
static const unsigned char PoundSymbol = 156;
static const unsigned char YenYuanSymbol = 157;
bool retVal = false;
if (*p == '$' || *p == '€' || *p == '£' || *p == '¥' || *p == '¢') {
advance(prevPtr, p, 1);
if (isNumber(prevPtr, p)) {
retVal = true;
} else if (*p == TheSpace) {
char *tmpPtr = p;
advance(prevPtr, p, 1);
if (isNumber(prevPtr, p)) {
retVal = true;
} else {
p = tmpPtr;
}
}
} else if(isNumber(prevPtr, p)) {
if (*p == CentSymbol) {
advance(prevPtr, p, 1);
retVal = true;
} else if (isCurrency(prevPtr, p)) {
retVal = true;
} else if (*p == TheSpace) {
char *tmpPtr = p;
advance(prevPtr, p, 1);
if (*p == CentSymbol) {
advance(prevPtr, p, 1);
retVal = true;
} else if(isCurrency(prevPtr, p)) {
retVal = true;
} else {
p = tmpPtr;
}
}
}
if (retVal) {
memset(origPtr, TheSpace, p - origPtr);
*(origPtr + 0) = '#';
*(origPtr + 1) = 'c';
} else {
prevPtr = origPrevPtr;
p = origPtr;
}
return retVal;
};
static auto isCurrency = [](char *&prevPtr, char *&p)->bool
{
// Modified by Kewei, added several new currency units
static const string currencies[] = { // make sure the longer version is first
"dollars", "dollar", "cents", "cent",
"euros", "euro", "yen", "yuan", "pounds", "pound", "pence",
"usd", "eur", "aud", "cad", "cny",
};
for (const string ¤cy : currencies) {
const string::size_type lenCurrency = currency.length();
if (strncmp(p, currency.c_str(), lenCurrency) == 0) {
if (*prevPtr == TheSpace) {
char *const pEndOfCurrency = p + lenCurrency;
if (*pEndOfCurrency == TheSpace) {
advance(prevPtr, p, lenCurrency);
return true;
}
}
}
}
return false;
};
static auto isNumber = [](char *&prevPtr, char *&p)->bool
{
bool retVal = false;
if (*p == '-' || *p == '+') {
advance(prevPtr, p, 1);
if (isDigit(prevPtr, p)) {
retVal = true;
for (;;) {
while (isDigit(prevPtr, p)) {}
if (*p == ',') {
advance(prevPtr, p, 1);
continue;
}
break;
}
if (*p == '.') {
advance(prevPtr, p, 1);
while (isDigit(prevPtr, p)) {}
if (*p == 'e') {
advance(prevPtr, p, 1);
if (*p == '-' || *p == '+') {
advance(prevPtr, p, 1);
}
while (isDigit(prevPtr, p)) {}
}
} else if (*p == 'e') {
advance(prevPtr, p, 1);
if (*p == '-' || *p == '+') {
advance(prevPtr, p, 1);
}
while (isDigit(prevPtr, p)) {}
} else if (*p == '/') { // Modified by Kewei, added a case for fraction
advance(prevPtr, p, 1);
for (;;) {
while (isDigit(prevPtr, p)) {}
if (*p == ',') {
advance(prevPtr, p, 1);
continue;
}
break;
}
}
}
} else if (isDigit(prevPtr, p)) {
retVal = true;
for (;;) {
while (isDigit(prevPtr, p)) {}
if (*p == ',') {
advance(prevPtr, p, 1);
continue;
}
break;
}
if (*p == '.') {
advance(prevPtr, p, 1);
while (isDigit(prevPtr, p)) {}
if (*p == 'e') {
advance(prevPtr, p, 1);
if (*p == '-' || *p == '+') {
advance(prevPtr, p, 1);
}
while (isDigit(prevPtr, p)) {}
}
} else if (*p == 'e') {
advance(prevPtr, p, 1);
if (*p == '-' || *p == '+') {
advance(prevPtr, p, 1);
}
while (isDigit(prevPtr, p)) {}
} else if (*p == '/') { // Modified by Kewei, added a case for fraction
advance(prevPtr, p, 1);
for (;;) {
while (isDigit(prevPtr, p)) {}
if (*p == ',') {
advance(prevPtr, p, 1);
continue;
}
break;
}
}
}
return retVal;
};
static auto advance = [](char *&prevPtr, char *&p, const size_t offset)->void
{
if (offset == 0) return; // safety measure
prevPtr = p + (offset - 1);
p = prevPtr + 1;
};
static auto isDigit = [](char *&prevPtr, char *&p)->bool
{
if (*p >= '0' && *p <= '9') { // There is a <ctype> function isdigit(), but it converts char to int
advance(prevPtr, p, 1);
return true;
}
return false;
};
};
int main()
{
sample smpl;
smpl.checkForCurrency = [](char *&prevPtr, char *&p)->bool;
smpl.isCurrency = [](char *&prevPtr, char *&p)->bool;
smpl.isNumber = [](char *&prevPtr, char *&p)->bool;
smpl.advance = [](char *&prevPtr, char *&p, const size_t offset)->void;
smpl. isDigit = [](char *&prevPtr, char *&p)->bool;
cin.ignore();
system("pause");
return 0;
}
推荐答案
' || * p == ' €' || * p == ' £' || * p == ' ¥' || * p == ' ¢'）{
advance（prevPtr，p， 1 ）;
if （isNumber（prevPtr，p））{
retVal = true ;
} 其他 如果（* p == TheSpace）{
char * tmpPtr = p;
advance（prevPtr，p， 1 ）;
if （isNumber（prevPtr，p））{
retVal = true ;
} else {
p = tmpPtr;
}
}
} 其他 如果（isNumber（prevPtr， p））{
if （* p == CentSymbol）{
advance（prevPtr，p， 1 ）;
retVal = true ;
} else if （isCurrency（prevPtr，p））{
retVal = true ;
} 其他 如果（* p == TheSpace）{
char * tmpPtr = p;
advance（prevPtr，p， 1 ）;
if （* p == CentSymbol）{
advance（prevPtr，p， 1 ）;
retVal = true ;
} else if （isCurrency（prevPtr，p））{
retVal = true ;
} else {
p = tmpPtr;
}
}
}
如果（retVal）{
memset（origPtr， TheSpace，p - origPtr）;
*（origPtr + 0 ）= ' ＃';
*（origPtr + 1 ）= ' C';
} else {
prevPtr = origPrevPtr;
p = origPtr;
}
return retVal;
};
static auto isCurrency = []（ char *& prevPtr， char *& p） - > bool
{
// 由Kewei修改，添加了几个新的货币单位
static const 字符串货币[] = { // 确保较长的版本是第一个
dollar， dollar， 美分， cent，
euros， euro， 日元， yuan， 磅， pound， pence，
usd， eur， aud， cad， cny，
};
for （ const string¤cy：currency）{
const string :: size_type lenCurrency = currency.length（）;
if （strncmp（p，currency.c_str（），lenCurrency）== 0 ） {
if （* prevPtr == TheSpace）{
char * const pEndOfCurrency = p + lenCurrency;
if （* pEndOfCurrency == TheSpace）{
advance（prevPtr，p，lenCurrency）;
return true ;
}
}
}
}
return 假;
};
静态 auto isNumber = []（ char *& prevPtr， char *& p） - > bool
{
bool retVal = false ;
if （* p == ' - ' || * p == ' +'）{
advance（prevPtr，p， 1 ）;
if （isDigit（prevPtr，p））{
retVal = true ;
for （;;）{
while （isDigit（prevPtr，p） ）{}
if （* p == ' ，'）{
advance（prevPtr，p， 1 ）;
继续;
}
break ;
}
if （* p == ' 。'）{
advance（prevPtr，p， 1 ）;
while （isDigit（prevPtr，p））{}
if （* p == ' e'）{
advance（prevPtr，p， 1 ）;
if （* p == ' - ' || * p == ' +'）{
advance（ prevPtr，p， 1 ）;
}
while （isDigit（prevPtr，p））{}
}
} else if （* p == ' e'）{
advance（prevPtr，p， 1 ）;
if （* p == ' - ' || * p == ' +'）{
advance（ prevPtr，p， 1 ）;
}
while （isDigit（prevPtr，p））{}
} else if （* p == ' / '）{ // 由Kewei修改，添加了一个小数
的案例advance（prevPtr，p， 1 ）;
for （;;）{
while （isDigit（prevPtr，p） ）{}
if （* p == ' ，'）{
advance（prevPtr，p， 1 ）;
继续;
}
break ;
}
}
}
} 其他 如果 （isDigit（prevPtr，p））{
retVal = true ;
for （;;）{
while （isDigit（prevPtr，p） ）{}
if （* p == ' ，'）{
advance（prevPtr，p， 1 ）;
继续;
}
break ;
}
if （* p == ' 。'）{
advance（prevPtr，p， 1 ）;
while （isDigit（prevPtr，p））{}
if （* p == ' e'）{
advance（prevPtr，p， 1 ）;
if （* p == ' - ' || * p == ' +'）{
advance（ prevPtr，p， 1 ）;
}
while （isDigit（prevPtr，p））{}
}
} else if （* p == ' e'）{
advance（prevPtr，p， 1 ）;
if （* p == ' - ' || * p == ' +'）{
advance（ prevPtr，p， 1 ）;
}
while （isDigit（prevPtr，p））{}
} else if （* p == ' / '）{ // 由Kewei修改，添加了一个小数
的案例advance（prevPtr，p， 1 ）;
for （;;）{
while （isDigit（prevPtr，p） ）{}
if （* p == ' ，'）{
advance（prevPtr，p， 1 ）;
继续;
}
break ;
}
}
}
return retVal;
};
static auto advance = [](char *&prevPtr, char *&p, const size_t offset)->void
{
if (offset == 0) return; // safety measure
prevPtr = p + (offset - 1);
p = prevPtr + 1;
};
static auto isDigit = [](char *&prevPtr, char *&p)->bool
{
if (*p >= '0' && *p <= '9') { // There is a <ctype> function isdigit(), but it converts char to int
advance(prevPtr, p, 1);
return true;
}
return false;
};
};
int main()
{
\tsample smpl;
\tsmpl.checkForCurrency = [](char *&prevPtr, char *&p)->bool;
\tsmpl.isCurrency = [](char *&prevPtr, char *&p)->bool;
\tsmpl.isNumber = [](char *&prevPtr, char *&p)->bool;
\tsmpl.advance = [](char *&prevPtr, char *&p, const size_t offset)->void;
smpl. isDigit = [](char *&prevPtr, char *&p)->bool;
\tcin.ignore();
system（ pause）;
return 0 ;
}
' || *p == '€' || *p == '£' || *p == '¥' || *p == '¢') { advance(prevPtr, p, 1); if (isNumber(prevPtr, p)) { retVal = true; } else if (*p == TheSpace) { char *tmpPtr = p; advance(prevPtr, p, 1); if (isNumber(prevPtr, p)) { retVal = true; } else { p = tmpPtr; } } } else if(isNumber(prevPtr, p)) { if (*p == CentSymbol) { advance(prevPtr, p, 1); retVal = true; } else if (isCurrency(prevPtr, p)) { retVal = true; } else if (*p == TheSpace) { char *tmpPtr = p; advance(prevPtr, p, 1); if (*p == CentSymbol) { advance(prevPtr, p, 1); retVal = true; } else if(isCurrency(prevPtr, p)) { retVal = true; } else { p = tmpPtr; } } } if (retVal) { memset(origPtr, TheSpace, p - origPtr); *(origPtr + 0) = '#'; *(origPtr + 1) = 'c'; } else { prevPtr = origPrevPtr; p = origPtr; } return retVal; }; static auto isCurrency = [](char *&prevPtr, char *&p)->bool { // Modified by Kewei, added several new currency units static const string currencies[] = { // make sure the longer version is first "dollars", "dollar", "cents", "cent", "euros", "euro", "yen", "yuan", "pounds", "pound", "pence", "usd", "eur", "aud", "cad", "cny", }; for (const string ¤cy : currencies) { const string::size_type lenCurrency = currency.length(); if (strncmp(p, currency.c_str(), lenCurrency) == 0) { if (*prevPtr == TheSpace) { char *const pEndOfCurrency = p + lenCurrency; if (*pEndOfCurrency == TheSpace) { advance(prevPtr, p, lenCurrency); return true; } } } } return false; }; static auto isNumber = [](char *&prevPtr, char *&p)->bool { bool retVal = false; if (*p == '-' || *p == '+') { advance(prevPtr, p, 1); if (isDigit(prevPtr, p)) { retVal = true; for (;;) { while (isDigit(prevPtr, p)) {} if (*p == ',') { advance(prevPtr, p, 1); continue; } break; } if (*p == '.') { advance(prevPtr, p, 1); while (isDigit(prevPtr, p)) {} if (*p == 'e') { advance(prevPtr, p, 1); if (*p == '-' || *p == '+') { advance(prevPtr, p, 1); } while (isDigit(prevPtr, p)) {} } } else if (*p == 'e') { advance(prevPtr, p, 1); if (*p == '-' || *p == '+') { advance(prevPtr, p, 1); } while (isDigit(prevPtr, p)) {} } else if (*p == '/') { // Modified by Kewei, added a case for fraction advance(prevPtr, p, 1); for (;;) { while (isDigit(prevPtr, p)) {} if (*p == ',') { advance(prevPtr, p, 1); continue; } break; } } } } else if (isDigit(prevPtr, p)) { retVal = true; for (;;) { while (isDigit(prevPtr, p)) {} if (*p == ',') { advance(prevPtr, p, 1); continue; } break; } if (*p == '.') { advance(prevPtr, p, 1); while (isDigit(prevPtr, p)) {} if (*p == 'e') { advance(prevPtr, p, 1); if (*p == '-' || *p == '+') { advance(prevPtr, p, 1); } while (isDigit(prevPtr, p)) {} } } else if (*p == 'e') { advance(prevPtr, p, 1); if (*p == '-' || *p == '+') { advance(prevPtr, p, 1); } while (isDigit(prevPtr, p)) {} } else if (*p == '/') { // Modified by Kewei, added a case for fraction advance(prevPtr, p, 1); for (;;) { while (isDigit(prevPtr, p)) {} if (*p == ',') { advance(prevPtr, p, 1); continue; } break; } } } return retVal; }; static auto advance = [](char *&prevPtr, char *&p, const size_t offset)->void { if (offset == 0) return; // safety measure prevPtr = p + (offset - 1); p = prevPtr + 1; }; static auto isDigit = [](char *&prevPtr, char *&p)->bool { if (*p >= '0' && *p <= '9') { // There is a <ctype> function isdigit(), but it converts char to int advance(prevPtr, p, 1); return true; } return false; }; }; int main() { sample smpl; smpl.checkForCurrency = [](char *&prevPtr, char *&p)->bool; smpl.isCurrency = [](char *&prevPtr, char *&p)->bool; smpl.isNumber = [](char *&prevPtr, char *&p)->bool; smpl.advance = [](char *&prevPtr, char *&p, const size_t offset)->void; smpl. isDigit = [](char *&prevPtr, char *&p)->bool; cin.ignore(); system("pause"); return 0; }
please help me. clear the errors in this C++ program. rply for my email xxxxxx
please help me. clear the errors in this C++ program. rply for my email xxxxxx
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