Memstring.h:


#ifndef MEMSTRING_H
#define MEMSTRING_H

#include"All.h"

const unsigned int BUFFERSIZE=1024*1024;

class MemString //??????????
{
string stemp;
char *OneLine;
int LineLen;//the length of OneLine
int LocateInLine;//the location in a line in the NonAutoEndl mode
int StartLocate;//the location where the returning lines start
int StartPage;//the location where one page start
protected:
string TempBuffer;
int Locate;//????
public:
MemString(const char *); //??????,?????????!--!
MemString();
~MemString(){free(OneLine);}
void DelString(const int i ,const int j){TempBuffer.replace(i,j-i+1,"");} //???????????????--!
void ChangeLocate(const int i); //????????--!
void Insert(const string &); //??--!
void Insert(const char);
string& CopyString(int ,int); //?????--!
char *GetLine(const int);
void SetStartLocate(const int i){StartLocate=i;}
int GetSize(){return TempBuffer.size();}
string GetBuffer(){return TempBuffer;}
void Clear();
bool NowLineEnd()const;
bool NowLineStart()const;
int GetLength(){return TempBuffer.size();}
virtual bool IsEndBuf()const;
virtual bool IsStartBuf()const;
static const int TOFRONT=0;
static const int TOBACK=1;
};

/*
inline void MemString::SetStartPage(const int i)
{
if(StartPage+i < 0)
throw CommonError(CommonError::UNDERBUF);
else if(Locate+i >= TempBuffer.size())
throw CommonError(CommonError::OVERBUF);
else
StartPage+=i;
}
*/

inline void MemString::ChangeLocate(const int i)
{
if(Locate+i < 0)
throw CommonError(CommonError::UNDERBUF);
else if(Locate+i >= TempBuffer.size())
throw CommonError(CommonError::OVERBUF);
else
Locate+=i;
}

inline bool MemString::IsStartBuf()const
{
if(Locate == 0)
return true;
else
return false;
}

inline bool MemString::IsEndBuf()const
{
if(Locate == TempBuffer.size())
return true;
else
return false;
}

inline bool MemString::NowLineStart()const
{
if(Locate == 0)
return true;
else if(TempBuffer[Locate-1] == '\n')
return true;
else
return false;
}

inline bool MemString::NowLineEnd()const
{
if(Locate == TempBuffer.size())
return true;
if(TempBuffer[Locate] == '\n')
return true;
else
return false;
}

inline void MemString::Clear()
{
TempBuffer.erase();
StartLocate=0;
Locate=0;
for(int i=0 ; i < LineLen ; i++)
OneLine[i]=0;
}

inline void MemString::Insert(const char ch)
{
char str[2];
str[0]=ch;
str[1]='\0';
TempBuffer.insert(Locate++ , str);
}

inline void MemString::Insert(const string &temp)
{
TempBuffer.insert(Locate,temp,0,temp.length());
Locate+=temp.length();
}

#endif

StrView.cpp:

#include<iostream>
using namespace std;
#include "StrView.h"

void StrView::KeyRightNonAuto(MemString &str)
{
if(str.NowLineEnd())
{
if(WinLocat.x < WinSize.ws_row-1)
;
}
}

void StrView::KeyRight(MemString &str)
{
//code for MemString
if(str.IsEndBuf())
{
beep();
return;
}
//some code
else
str.ChangeLocate(1);

//code for screen
getyx(win , WinLocat.x , WinLocat.y);
if(AutoEndl)
KeyRightAuto(str);
else
{
}
}

void StrView::KeyLeft(MemString &str)
{
//code for MemString
if(str.IsStartBuf())
{
beep();
return;
}
//some code
else
str.ChangeLocate(-1);

//code for screen
getyx(win , WinLocat.x , WinLocat.y);
if(AutoEndl)
{
if(str.NowLineStart() && WinLocat.x != 0)
//for some code
;
//move(WinLocat.x-1 , );
else if(WinLocat.y <= WinSize.ws_col-1 && WinLocat.y > 0)
move(WinLocat.x , --(WinLocat.y));
else if(WinLocat.y == 0 && WinLocat.x > 0)
move(WinLocat.x-1 , WinSize.ws_col-1);
else
{
move(0 , WinSize.ws_col-1);
//for();
}
}
else
{
}
}


void StrView::SigWinch(int signo)
{

}

/*void StrView:isplay(char *str)
{

}*/

struct Location StrView::GetLocat()
{
getyx(win , WinLocat.x , WinLocat.y);
return WinLocat;
}

void StrView::ClearComLine()
{
int y=CommandLines;
if(WinSize.ws_row > y)
for(; y > 0 ; y--)
{
move(WinSize.ws_row-y , 0);
clrtoeol();
}
else
clear();
}

void StrView:isplayCommand(char *s , const bool sign)
{
MemString str(s);
DisplayCommand(str , sign);
}

void StrView:isplayCommand(MemString &str , const bool sign)
{
int y;
int size=str.GetSize();
bool tempAutoEndl=AutoEndl;
AutoEndl=true;
if(size%WinSize.ws_col == 0)
y=size/WinSize.ws_col;
else
y=size/WinSize.ws_col+1;
ClearComLine();
CommandLines=y;
int startline;
if(WinSize.ws_row > y)
{
startline=WinSize.ws_row-CommandLines;
move(WinSize.ws_row-CommandLines , 0);
str.SetStartLocate(0);
}
else
{
startline=0;
move(0 , 0);
int templocate=(y-WinSize.ws_row)*WinSize.ws_col;
str.SetStartLocate(templocate);
}
char *line=NULL;
for(;
{
line=str.GetLine(WinSize.ws_col);
if(line == NULL)
break;
else
addstr(line);
move(++startline , 0);
}
AutoEndl=tempAutoEndl;
}

StrView.h:

#ifndef __STRVIEW_H__
#define __STRVIEW_H__

#include"All.h"
#include"Memstring.h"

class StrView
{
int x;
int y;
int CommandLines;
struct Location WinLocat;
struct winsize WinSize;
bool AutoEndl;
WINDOW *win;
int count;//???????????????
int MaxLineLength; //?????80???,????
int MaxLineNumber;//??????20?,????
public:
StrView()
{
AutoEndl=true;
WinSize=::GetWinSize();
CommandLines=1;
MaxLineLength=80;
MaxLineNumber=20;
x=0;
y=0;
win=initscr();
if(win == NULL)
{
cout<<"can't initial"<<endl;
exit(1);
}
cbreak();
nl();
noecho();
intrflush(stdscr,false);
keypad(stdscr,true);
refresh();
}
~StrView()
{
endwin();
}
bool SetMaxLineLength();//??????????
bool SetMaxLineNumber();//???????
void Display(const string &);
void DisplayCommand(MemString & , const bool sign=false);
void DisplayCommand(char * , const bool sign=false);
void ClearComLine();
struct Location GetLocat();
void ChangColor();
void SigWinch(int signo);
struct winsize GetWinSize(){return WinSize;}
bool GetAutoEndl(){return AutoEndl;}

void KeyLeft(MemString &str);
void KeyLeftAuto(const MemString &str);
void KeyRight(MemString &str);
void KeyRightAuto(const MemString &str);
void KeyRightNonAuto(MemString &str);
void KeyBackSpace(MemString &str){}
void KeyEnter(MemString &str){}
void KeyPageUp(MemString &str){}
void KeyPageDown(MemString &str){}
void KeyHome(MemString &str){}
void KeyEnd(MemString &str){}
void KeyDelete(MemString &str){}
void KeyUp(MemString &str){}
void KeyDown(MemString &str){}
void KeyInsert(){}
};

inline void StrView::KeyRightAuto(const MemString &str)
{
if(str.NowLineEnd() && WinLocat.x != WinSize.ws_row-1)
move(WinLocat.x+1 , 0);
else if(WinLocat.y < WinSize.ws_col-1 && WinLocat.y >= 0)
move(WinLocat.x , ++(WinLocat.y));
else if(WinLocat.y == WinSize.ws_col-1 && WinLocat.x < WinSize.ws_row-1)
move(WinLocat.x+1 , 0);
else
{
move(WinSize.ws_row-1 , 0);
//for();
}
}

#endif

SunMemstring.cpp:

#include "SunMemstring.h"

string& SunMemString::CopyString(int i,int j)
{
char temp[BUFFERSIZE];
TempBuffer.copy(temp,i,j-i);
temp[j-i]=0;
stemp=temp;
return stemp;
}

void SunMemString::ReadFile()
{
if(fs.eof())
{
IsFileEnd=1;
Locate--;
return;
}
if(Locate>BUFFERSIZE)//????;;???locate?????BUFFERSIZE/2
{
int count=0;
int fl;
fl=Locate-BUFFERSIZE;
char temp[BUFFERSIZE/2];
Locate=BUFFERSIZE/2;
while(!fs.eof()&&(count!=Locate))
{
fs.get(temp[count]);
count++;
FileLocate++;
TrueSize++;
}
TempBuffer+=temp;
SaveFile();
TempBuffer.replace(0,Locate,"");
TrueSize-=Locate;
Locate=TempBuffer.size()-count;
Locate+=fl;
}
else if(Locate<0)//????;;
{
char temp[BUFFERSIZE/2];
int flu;
flu=-Locate;
Locate=BUFFERSIZE/2;
fs.seekg(-TempBuffer.size()-BUFFERSIZE/2,ios::cur);//?????????BUFFERSIZE/2
fs.read(temp,BUFFERSIZE/2);//?BUFFERSIZE/2???
TrueSize+=BUFFERSIZE/2;
FileLocate-=BUFFERSIZE/2;
TempBuffer.insert(0,temp,0,BUFFERSIZE/2);
SaveFile();
fs.seekg(-BUFFERSIZE/2,ios::cur);//????????
TempBuffer.replace(Locate,Locate,"");
TrueSize-=Locate;
Locate-=flu;
}
}



void SunMemString::SaveFile()//??
{
const int EndPoint=FileLocate-TrueSize;//??????????????
double count=0.0;
char temp[1024];
char ch;
fstream TempFile("tempfile.tmp",ios:ut);

fs.seekg(0,ios::beg);
while((count+1024)<EndPoint)
{
fs.read(temp,1024);
TempFile.write(temp,1024);
count+=1024;
}
while(count<EndPoint)
{
fs.get(ch);
TempFile.put(ch);
count++;
}
TempFile.write(TempBuffer.c_str(),TempBuffer.size());
fs.seekg(FileLocate,ios::beg);
while(!fs.eof())
{
fs.get(ch);
TempFile.put(ch);
}
TempFile.close();
fs.close();
string del="rm -f ";
del+=FileName;
char dele[50];
del.copy(dele,del.size());
dele[del.size()]=0;
system(dele);
string chan="mv tempfile.tmp ";
chan+=FileName;
char chang[50];
chan.copy(chang,chan.size());
chang[chan.size()]=0;
system(chang);
char tempname[50];
FileName.copy(tempname,FileName.size());
tempname[FileName.size()]=0;
FileLocate=EndPoint+TempBuffer.size();
fs.open(tempname,ios::in|ios:ut);
fs.seekg(EndPoint+TempBuffer.size(),ios::beg);
}

int SunMemString::Find(char* s)
{
int ReturnValue;
int OldLocate;//???????Locate
OldLocate=Locate;
const int Length=strlen(s);
if (Length<1)
{
//cout<<"Command in find error"<<endl;
return -1;
}
else
{
if (s[0]=='^')
{
if (s[strlen(s)-1]=='$')
{
int i;
char *ss=(char*)malloc(strlen(s));
for(i=0;i<(strlen(s)-1);i++)
ss[i]=s[i];
ReturnValue=FindHead(ss);
}
else
{
ReturnValue=FindHead(s);
}
}
if (s[Length-1]=='$')
{
if(s[0]!='^')
{
ReturnValue=FindEnd(s);
}
else
{
int i;
char* ss=(char*)malloc(strlen(s));
for(i=1;i<strlen(s);i++)
ss[i-1]=s[i];
ReturnValue=FindEnd(ss);
}
}
if (s[0]!='^'&&s[Length-1]!='$')
{
ReturnValue=FindNormal(s);
}

}
if (ReturnValue==-1)
Locate=OldLocate;
return ReturnValue;
}

int SunMemString::FindHead(char* s)
{
// int SearchPoint=Locate;
int PointToS;//??s??
int PointTot;//???TempBuffer??
char temp;
int i=0;
int ismatch=0;
while(TempBuffer[Locate]!=s[1])//s[0]?'^',????s[o]
{
Locate++;
ReadFile();
if(IsFileEnd==1)
{
return -1;
}
}


if ((TempBuffer[Locate-1]!='\n')&&(Locate!=0))
{
return -1;
}

else
{
PointToS=1;
PointTot=Locate;
while((TempBuffer[PointTot]!='\n')&&(PointToS!=strlen(s))&&(Locate+PointTot<TempBuffer.size()))
{
temp=TempBuffer[PointTot];
if(s[PointToS]=='[')
{
char *t=(char*)malloc(strlen(s));
for(PointToS=PointToS++;TempBuffer[PointToS]!=']';PointToS++)
{
t[i]=TempBuffer[PointToS];
i++;
}
PointToS++;
int n;
for(n=0;n<i;n++)
{
if(t[n]==temp)
ismatch=1;
}
if(ismatch==0)
{
return -1;
}
}
else if (s[PointToS]=='.')
{
PointToS++;
}
else if (s[PointToS]=='*')
{
if (s[PointToS-1]==temp)
ismatch=1;
else if (s[PointToS+1]==temp)
{
ismatch=1;
PointToS+=2;
}
else if((PointToS+1)==strlen(s))
{
ismatch=1;
PointToS++;
}
if (ismatch==0)
return -1;
}
else if(temp==s[PointToS])
{
PointToS++;
}
else
{
return -1;
}
PointTot++;
ismatch=0;
}
if (PointToS!=strlen(s))
return -1;
while(TempBuffer[PointTot]!='\n')
PointTot++;
return PointTot;
}
}

int SunMemString::FindEnd(char* s)
{
int PointToS;//??s??
int PointTot;//???TempBuffer??
char temp;
int i=0;
int ismatch=0;
while((TempBuffer[Locate]!=s[strlen(s)-2])||(TempBuffer[Locate+1]!='\n'))
{
Locate++;
ReadFile();
if(IsFileEnd==1)
{
return -1;
}
}
if ((TempBuffer[Locate+1]!='\n')&&((Locate+1)!=TempBuffer.size()))
{
return -1;
}
else
{
PointToS=strlen(s)-2;
PointTot=Locate;
while((TempBuffer[PointTot]!='\n')&&(PointToS>0)&&(Locate-PointTot>0))
{
temp=TempBuffer[PointTot];
if(s[PointToS]==']')
{
char *t=(char*)malloc(strlen(s));
for(PointToS=PointToS--;TempBuffer[PointToS]!='[';PointToS--)
{
t[i]=TempBuffer[PointToS];
i--;
}
PointToS--;
int n;
for(n=0;n<i;n++)
{
if(t[n]==temp)
ismatch=1;
}
if(ismatch==0)
{
return -1;
}
}
else if (s[PointToS]=='.')
{
PointToS--;
}
else if (s[PointToS]=='*')
{
if (s[PointToS-1]==temp)
ismatch=1;
else if (s[PointToS-2]==temp)
{
ismatch=1;
PointToS-=3;
}
else if((PointToS-2)<0)
{
ismatch=1;
PointToS-=2;
}
if (ismatch==0)
return -1;
}
else if(temp==s[PointToS])
{
PointToS--;
}
else
{
return -1;
}
PointTot--;
ismatch=0;
}
if (PointToS<0)
return -1;
while(TempBuffer[PointTot]!='\n')
PointTot--;
int ttm;
ttm=PointTot;
PointTot=Locate;
Locate=ttm+1;
return PointTot;
}
}

int SunMemString::FindNormal(char* s)
{
int PointToS;//??s??
int PointTot;//???TempBuffer??
char temp;
int i=0;
int ismatch=0;
while(TempBuffer[Locate]!=s[0])
{
Locate++;
ReadFile();
if(IsFileEnd==1)
{
return -1;
}
}
PointToS=0;
PointTot=Locate;
while((TempBuffer[PointTot]!='\n')&&(PointToS!=strlen(s))&&(Locate+PointTot<TempBuffer.size()))
{
temp=TempBuffer[PointTot];
if(s[PointToS]=='[')
{
char *t=(char*)malloc(strlen(s));
for(PointToS=PointToS++;TempBuffer[PointToS]!=']';PointToS++)
{
t[i]=TempBuffer[PointToS];
i++;
}
PointToS++;
int n;
for(n=0;n<i;n++)
{
if(t[n]==temp)
ismatch=1;
}
if(ismatch==0)
{
return -1;
}
}
else if (s[PointToS]=='.')
{
PointToS++;
}
else if (s[PointToS]=='*')
{
if (s[PointToS-1]==temp)
ismatch=1;
else if (s[PointToS+1]==temp)
{
ismatch=1;
PointToS+=2;
}
if (ismatch==0)
return -1;
}
else if(temp==s[PointToS])
{
PointToS++;
}
else
{
return -1;
}
PointTot++;
ismatch=0;
}
if (PointToS!=strlen(s))
return -1;
return PointTot;

}

int SunMemString::Replace(char* s,char* so)
{
int isfind;
isfind=Find(s);
if (isfind<0)
{
//cout<<"There is no strings named "<<'\"'<<s<<'\"'<<endl;
return -1;
}
else
{
TempBuffer.replace(Locate,(isfind-Locate),so);
return 1;
}

}

int SunMemString::ReplaceAll(char* s,char* so)
{
int is;
is=Replace(s,so);
if(is<0)
{
///cout<<"There is no strings named "<<'\"'<<s<<'\"'<<endl;
return -1;
}
else
{
while ((is=Replace(s,so))>0);
return 1;
}
}

SunMemstring.h:


#ifndef SUNMEMSTRING_H
#define SUNMEMSTRING_H

#include"Memstring.h"
#include"All.h"

class SunMemStringublic MemString //??????????
{
int TrueSize;//?????????????
string stemp;
int FileLocate;//????????
string FileName;//??? !--
fstream fs;
int IsFileEnd;
int Locate;
public:
SunMemString(char *); //??????,?????????!--!
~SunMemString(){}
void ReadFile(); // !--!
void SaveFile(); //??
string& CopyString(int ,int); //?????--!
int Find(char *); //??,???????,?????????????
int Replace(char *,char *);
int ReplaceAll(char *,char *);
int FindHead(char *);
int FindEnd(char *);
int FindNormal(char *);
const string &GetFileName()const{return FileName;}
int GetLocate();
bool IsEndBuf()const;
bool IsStartBuf()const;
};

bool SunMemString::IsStartBuf()const
{
if(FileLocate == 0)
return true;
else
return false;
}

bool SunMemString::IsEndBuf()const
{
}

inline SunMemString::SunMemString(char* s):fs(s,ios::in|ios:ut)
{
if(fs.eof())
throw -1;
char temp[BUFFERSIZE];
FileName=s;
Locate=0;
FileLocate=0;
TrueSize=0;
fs.read(temp,BUFFERSIZE);
TempBuffer=temp;
FileLocate+=BUFFERSIZE;
TrueSize=BUFFERSIZE;
IsFileEnd=0;
}

#endif //SUNMEMSTRING_H

Makefile:

all:StrView.o main.o Control.o Memstring.o SunMemstring.o FileList.o
g++ -ggdb3 -o myvi StrView.o main.o Control.o Memstring.o FileList.o -lcurses
StrView.o:StrView.cpp StrView.h
g++ -ggdb3 -c StrView.cpp
main.o:main.cpp
g++ -ggdb3 -c main.cpp
Control.o:Control.cpp Control.h
g++ -ggdb3 -c Control.cpp
Memstring.o:Memstring.cpp Memstring.h
g++ -ggdb3 -c Memstring.cpp
SunMemstring.o:SunMemstring.cpp SunMemstring.h
g++ -ggdb3 -c SunMemstring.cpp
FileList.o:FileList.cpp FileList.h
g++ -ggdb3 -c FileList.cpp

Hi icoming!
Yeah! The stuff compiles. 'myvi' exists.
The essential step was providing a copy-constructor for SunMemString
like the following
You---or better the stl---need this ctor to be able to copy the items
into the list. Maybe you shoud better use a list of pointers. I
remember that Scott Meyer wrote something about this.

Could not reproduce the "in charge" thing. Also googling gave me no
real insight.

Ciao, bluie

PS: Hey! Why not wrapping code in these cute code-tags?