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Update Parserv2

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This commit is contained in:
William Bracho Blok 2015-09-22 18:38:04 -05:00
parent ac43cf74b9
commit 459a8a5db6
1 changed files with 71 additions and 14 deletions
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85
Parserv2
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@ -37,21 +37,21 @@ vector<string> tokenize(string ss)
} }
void par_select(vector<string> input) // void par_select(vector<string> input)
{ // {
// if (input[0] != "(") // // if (input[0] != "(")
// { // // {
// cout<<"ERROR! missing parenthesis"<<endl; // // cout<<"ERROR! missing parenthesis"<<endl;
// } // // }
// else // // else
// { // // {
// input.erase(input.begin()); // // input.erase(input.begin());
// } // // }
cout<<"par_select function was called!"<<endl; // cout<<"par_select function was called!"<<endl;
} // }
void displayTokenList(vector<string> input) void displayTokenList(vector<string> input)
{ {
@ -112,6 +112,49 @@ vector<string> insertCMD(vector<string> input)
vector<string> createCMD(vector<string> input)
{
//relation name will be the first element of the vector of data returned by this function
// vector<string> output;
// output.push_back(input[0]) //pushing relation name
// if (input[0] == "VALUES" && input[1] == "FROM")
// {
// input.erase(input.begin());
// input.erase(input.begin());
// if(input[0] == "(")
// {
// input.erase(input.begin());
// while(input[0] != ")") //inserting all values to relation
// //for (int i = 0; i < 2; ++i)
// {
// if (input[0] == ",") input.erase(input.begin());
// output.push_back(input[0]);
// input.erase(input.begin());
// }
// return output;
// }
// else cout<<"Syntax error!"<<endl;
// }
// else cout<<"Syntax error!"<<endl;
}
void par_line(vector<string> input) //calls par_command() or par_query() depending on first item from token list void par_line(vector<string> input) //calls par_command() or par_query() depending on first item from token list
{ {
@ -150,13 +193,27 @@ void par_line(vector<string> input) //calls par_command() or par_query() dependi
if ( input[0] == "INSERT") if ( input[0] == "INSERT")
{ {
cout<<"\nPassing the following arguments to dbEngine: \nCommand type: "<<input[0]<<endl; cout<<"\nPassing the following arguments to dbEngine: \nCommand: "<<input[0]<<endl;
input.erase(input.begin()); input.erase(input.begin());
vector<string> insertInput = insertCMD(input); vector<string> insertInput = insertCMD(input);
cout<<"arguments: "<<endl; cout<<"arguments: "<<endl;
displayTokenList(insertInput); displayTokenList(insertInput);
} }
if ( input[0] == "CREATE")
{
cout<<"\nPassing the following arguments to dbEngine: \nCommand: "<<input[0]<<endl;
input.erase(input.begin());
input.erase(input.begin());
vector<string> insertInput = insertCMD(input);
cout<<"arguments: "<<endl;
displayTokenList(insertInput);
}
} }
@ -199,7 +256,7 @@ int main () {
string ss = "INSERT INTO animals VALUES FROM ( Joe , cat , 4 ) ;"; string ss = "INSERT INTO animals VALUES FROM ( Joe , cat , 4 ) ;";
string ss2 = "CREATE TABLE animals ( name VARCHAR(20) , kind VARCHAR(8) , years INTEGER ) PRIMARY KEY (name, kind);";
vector<string> listOfTokens = tokenize(ss); vector<string> listOfTokens = tokenize(ss);
par_line(listOfTokens); par_line(listOfTokens);