floraachy/Nasal-Interpreter
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update parse

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This commit is contained in:
Valk Richard Li
2019-08-10 23:41:39 +08:00
committed by GitHub
parent 7aefdc470c
commit e8fad23955
9 changed files with 512 additions and 309 deletions
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version0.2/nasal_lexer.h
+38 -22
View File
@@ -30,7 +30,7 @@ std::string OperatorOrDelimiter[40]=
};
std::string IdentifierTable[1000]={""};
char ResourcePrograme[16777216];
char ResourceProgram[16777216];
int isReserveWord(std::string &p)
{
@@ -61,39 +61,46 @@ bool isNumber(char t)
void InputFile(std::string &FileName)
{
std::ifstream fin(FileName);
if(fin.fail())
{
std::cout<<"[Error] Failed to load file: "<<FileName<<std::endl;
ResourcePrograme[0]='@';
fin.close();
return;
}
int i=0;
bool FindNote=false;
while(!fin.eof())
{
ResourcePrograme[i]=fin.get();
if(ResourcePrograme[i]=='\n')
ResourceProgram[i]=fin.get();
if(ResourceProgram[i]=='\n')
FindNote=false;
if(ResourcePrograme[i]!='#' && !FindNote)
if(ResourceProgram[i]!='#' && !FindNote)
++i;
else if(ResourcePrograme[i]=='#')
else if(ResourceProgram[i]=='#')
{
FindNote=true;
}
if(fin.eof())
break;
}
ResourcePrograme[i]='@';
// print source file
// ++i;
// for(int j=0;j<i;++j)
// std::cout<<ResourcePrograme[j];
// std::cout<<std::endl;
ResourceProgram[i]=0;
fin.close();
return;
}
void PrintSourceFile()
{
int line=1;
std::cout<<line<<" ";
for(int i=0;i<16777216;++i)
{
if(!ResourceProgram[i])
break;
std::cout<<ResourceProgram[i];
if(ResourceProgram[i]=='\n')
{
++line;
std::cout<<line<<" ";
}
}
std::cout<<std::endl;
}
void Scanner(int &Syn,const char Source[],std::string &token,int &ptr,int &line)
{
char temp;
@@ -200,7 +207,7 @@ void Scanner(int &Syn,const char Source[],std::string &token,int &ptr,int &line)
++ptr;
temp=Source[ptr];
}
if(temp=='@' || temp=='\n')
if(temp==0 || temp=='\n')
break;
}
//add the last char \"
@@ -212,7 +219,7 @@ void Scanner(int &Syn,const char Source[],std::string &token,int &ptr,int &line)
else
token+=" __missing_end_of_string";
}
else if(temp=='@')
else if(temp==0)
{
Syn=SCANEND;
return;
@@ -241,12 +248,21 @@ void RunProcess(std::string &FileName)
int Ptr=0;//pointer to one char in ResourcePrograme
int line=1;
std::string token;
std::ifstream fin(FileName);
if(fin.fail())
{
std::cout<<"[Error] Failed to load file: "<<FileName<<std::endl;
fin.close();
return;
}
else
fin.close();
ResourceProgram[0]=0;
nasal_lexer.delete_all();
InputFile(FileName);
while(Syn!=SCANEND && Syn!=ERRORFOUND)
{
Scanner(Syn,ResourcePrograme,token,Ptr,line);
Scanner(Syn,ResourceProgram,token,Ptr,line);
if(Syn>0)//all Syn type is larger than zero
nasal_lexer.append(line,Syn,token);
}