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256 lines (190 loc) · 5.24 KB
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#include <bits/stdc++.h>
using namespace std;
int isbraces(char cc)
{
if(cc=='{' || cc=='}')
{
return 1;
}
return 0;
}
int main()
{
long long int i,j,k,l,m,kk;
int fvalid=0,lvalid=0,jvalid=0,qvalid=0,forvalid=0,lfvalid=0,semivalid=0;
string s,st,sq="",sf,sg="";
char ct;
vector<string>v,w;
ifstream program,ifc,forc;
ifc.open("ifelse.txt");
forc.open("for.txt");
freopen("output3.txt","w",stdout);
cout<<"........................"<<endl;
cout<<"If Else Validation"<<endl;
cout<<"........................"<<endl;
while(getline(ifc,s))
{
for(k=0;k<s.length();k++)
{
if(!isspace(s[k]) )
{
if(!isbraces(s[k]) )
{
sq=sq+s[k];
}
}
}
v.push_back(sq);
sq="";
}
while(getline(forc,sf))
{
for(k=0;k<sf.length();k++)
{
if(!isspace(sf[k]) )
{
if(!isbraces(sf[k]) )
{
sg=sg+sf[k];
}
}
}
w.push_back(sg);
sg="";
}
for(i=0;i<v.size();i++)
{
cout<<v[i]<<endl;
}
for(i=0;i<v.size();i++)
{
st=v[i];
for(j=0;j<st.length();j++)
{
if(i==0)
{
if(st[j]=='i' && st[j+1]=='f' && st[j+2]=='(' && ((st[j+3]>='a' && st[j+3]<='z')||(st[j+3]>='0' && st[j+3]<='9')) )
{
fvalid=1;
}
}
if(fvalid==1 && i==0 && j==st.length()-1)
{
if(st[j]==')')
{
lvalid=1;
}
}
}
if(i!=0 && fvalid==1 )
{
for(j=0;j<st.length();j++)
{
if(j==0 && st[j]=='e' )
{
qvalid=1;
if(st[j+1]=='l' && st[j+2]=='s' && st[j+3]=='e' )
{
jvalid=1;
}
else
{
jvalid=0;
}
}
else
{
qvalid=0;
}
}
}
}
if(qvalid==1)
{
if(jvalid==1)
{
lvalid=1;
}
else
{
lvalid=0;
}
}
if(fvalid==1 && lvalid==1)
{
cout<<"if-else block is Valid"<<endl;
}
else
{
cout<<"if-else block is Invalid"<<endl;
}
cout<<endl;
cout<<"........................"<<endl;
cout<<"For Loop Validation"<<endl;
cout<<"........................"<<endl;
for(l=0;l<w.size();l++)
{
cout<<w[l]<<endl;
}
for(l=0;l<w.size();l++)
{
st=w[l];
jvalid=0;
for(j=0;j<st.length();j++)
{
if(l==0)
{
if(st[j]=='f' && st[j+1]=='o' && st[j+2]=='r' && st[j+3] =='(' && st[j+4]>='a' && st[j+4]<='z')
{
kk=j+4;
while(1)
{
if((st[kk+1]>='a' && st[kk+1]<='z'))
{
kk++;
if(st[kk]=='=')
{
//cout<<st[kk]<<kk<<endl;
break;
}
//cout<<st[kk]<<endl;
}
else
{
break;
}
}
if(st[kk]=='=' || st[kk+1]=='=')
{
forvalid=1;
}
}
}
if(forvalid==1 && l==0 && j==st.length()-1)
{
if(st[j]==')')
{
lfvalid=1;
}
}
if((st[j]>='0' && st[j]<='9') && st[j+1]==';')
{
semivalid++;
}
if((st[j]>='a' && st[j]<='z') && st[j+1]==';')
{
semivalid++;
}
}
}
//cout<<semivalid<<endl;
if(forvalid==1 && lfvalid==1 && semivalid==2)
{
cout<<"For loop is valid"<<endl;
}
else
{
cout<<"For loop is not invalid"<<endl;
}
return 0;
}