1.简易文本编辑器
2.用链表实现，保存到文件中
#include
#include
#include
#include
#include
#include
usingnamespacestd;
intNumberCount=0;//数字个数
intCharCount=0;//字母个数
intPunctuationCount=0;//标点符号个数
intBlankCount=0;//空白符个数
classNode
{
public:
stringcharacter;
intcursor;
intoffset;
Node*next;
Node(){
cursor=0;//每行的光标初始位置
offset=0;//每行的初始偏移位置
next=NULL;
}
};
classTextEditor
{
private:
Node*head;
stringname;
intline;//可更改的行数
intlength;//行数
public:
TextEditor();
~TextEditor();
stringGetName();
voidSetName(stringname);
intGetCursor();
intMoveCursor(intoffset);
intSetCursor(intline,intoffset);
voidAddText(conststrings);
voidInsertText(intseat,strings);
intFindText(strings);
voidDeleteText(strings);
intGetLine();
voidCount();
friendostream&operator
Node*Gethead(){
returnhead;
}
//intGetLength()
//{
// returnlength;
//}
// intFindText(strings);
// voidDeleteText(intseat,strings);
};
TextEditor::TextEditor()
{
head=NULL;
name="test";//文件初始名
//tail=NULL;
line=1;
length=0;
}
TextEditor::~TextEditor()
{
Node*p=head;
Node*q;
while(p!=NULL){
q=p->next;
deletep;
p=q;
}
}
intTextEditor::GetLine()
{
returnline;
}
stringTextEditor::GetName()
{
returnname;
}
voidTextEditor::SetName(stringname)
{
this->name=name;
}
intTextEditor::GetCursor()
{
Node*p=head;
while(p->next!=NULL)
p=p->next;
returnp->cursor;
}
intTextEditor::MoveCursor(intoffset)
{
Node*p=head;
inti=1;
if(length+1
cout
exit(0);
}
else{
while(p->next!=NULL&&i
p=p->next;
i++;
}
}
if(offset>p->character.length()){
cout
exit(0);
}
else
p->cursor+=offset;
//coutcursor="cursor
returnp->cursor;
}
intTextEditor::SetCursor(intline,intoffset)
{
this->line=line;
//coutline
returnMoveCursor(offset);
}
voidTextEditor::AddText(conststrings)
{
line=length+1;
Node*p=newNode;
Node*q=head;
p->character=s;
p->next=NULL;
if(head==NULL)
head=p;
else{
while(q->next!=NULL)
q=q->next;
q->next=p;
}
length++;
//line++;
}
voidTextEditor::InsertText(intseat,strings)
{
Node*p=head;
inti=1;
if(length+1
cout
exit(0);
}
else{
while(p->next!=NULL&&i
p=p->next;
i++;
}
}
//MoveCursor(seat);
//coutcursor="cursor
stringsubstr;
for(inti=seat;i
character.length();i++) substr+=p->character[i];
p->character.insert(p->cursor,s);
cout
DeleteText(substr);//覆盖子串
p->cursor=0;//光标清零
}
ostream&operator
{
inti=1;
Node*p=text.Gethead();
while(p!=NULL){
outcharacter
p=p->next;
}
//cout
returnout;
}
intTextEditor::FindText(stringP)
{
Node*q=head;
//inttempline=1;
line=1;
intp=0;
intt=0;
intplen=P.length()-1;
//cout
//cout
inttlen=q->character.length();
while(q!=NULL){
p=0;
t=0;
tlen=q->character.length();
if(tlen
line++;
q=q->next;
}
while(p
if(q->character[t]==P[p]){
t++;
p++;
}
else{
t=t-p+1;
p=0;
}
}
// cout
// cout
// cout
if(p>=plen){
returnt-plen+1;
}
else{
line++;
q=q->next;
}
}
return-1;
}
voidTextEditor::DeleteText(strings)
{
Node*p=head;
inti=1;
intk=FindText(s);
if(k==-1)
cout
else{
while(p!=NULL&&i
p=p->next;
//coutcharacter
i++;
}
p->character.erase(k-1,s.length());
cout
}
}
voidTextEditor::Count()
{
Node*p=head;
NumberCount=0;
CharCount=0;
PunctuationCount=0;
BlankCount=0;
while(p!=NULL){
for(inti=0;i
character.length();i++){ if(p->character[i]>='0'&&p->character[i]
NumberCount++;
elseif(p->character[i]>'a'&&p->character[i]<&>character[i]>'A'&&p->character[i]<&>
CharCount++;
elseif(ispunct(p->character[i]))
PunctuationCount++;
elseif(p->character[i]=='')
BlankCount++;
}
p=p->next;
}
}
intmain()
{
inti,j,k,n=2;
strings,t,name;
TextEditortext;
cout
cout
cout
cout
cout
cout
cout
cout
cout
cout
cout
while(n){
//cout
cout
cout
cout
cin>>n;
getchar();
switch(n){
case1:cout
case2:cout>name;text.SetName(name);break;
case3:cout
case4:cout
case5:{
cout
cin>>i;
cout
cout
cin>>j;
cout
getchar();
getline(cin,s);
text.InsertText(text.SetCursor(i,j),s);break;
}
case6:{
cout
getline(cin,s);
intk=text.FindText(s);
if(k==-1)
cout
else
cout
break;
}
case7:cout
case8:{
text.Count();
cout
cout
cout
cout
cout
cout
break;
}
case9:cout
case0:{
stringss=text.GetName();
ss+=".txt";
cout
ofstreamoutFile(ss.c_str());
Node*p=text.Gethead();
while(p!=NULL){
outFilecharacter
p=p->next;
}
exit(0);
break;
}
default:cout
}
}
}
