Z-Sharp/Slang/Main.cpp
2022-01-03 13:52:54 -05:00

662 lines
18 KiB
C++

#include "olcPixelGameEngine.h"
#include <iostream>
#include <fstream>
#include <string>
#include <regex>
#include <limits>
#include <algorithm>
#include <cstdlib>
#include "eval.h"
#include "strops.h"
#include "builtin.h"
#include "main.h"
#include <boost/any.hpp>
using namespace std;
using namespace boost;
unordered_map<string, any> globalVariableValues;
unordered_map<string, vector<string>> functionValues;
bool isNumber(const string& str)
{
for (char const& c : str) {
if (isdigit(c) == 0 && c != '.') return false;
}
return true;
}
bool stob(string str) {
transform(str.begin(), str.end(), str.begin(), ::tolower);
istringstream is(str);
bool b;
is >> boolalpha >> b;
return b;
}
string StringRaw(string str)
{
str = trim(str);
if (str.size() < 3)
return str;
string withoutQuotes;
if (str[0] != '\"')
withoutQuotes += str[0];
withoutQuotes += str.substr(1, str.size()-2);
if (str[str.size() - 1] != '\"')
withoutQuotes += str[str.size() - 1];
return withoutQuotes;
}
string Quoted(string str)
{
str = trim(str);
string withQuotes;
if (str[0] != '\"')
withQuotes += '\"';
withQuotes += str;
if (str[str.size() - 1] != '\"')
withQuotes += '\"';
return withQuotes;
}
string RMParenthesis(string str)
{
str = trim(str);
string withoutParenthesis;
if (str[0] != '(')
withoutParenthesis += str[0];
withoutParenthesis += str.substr(1, str.size()-2);
if (str[str.size() - 1] != ')')
withoutParenthesis += str[str.size() - 1];
return withoutParenthesis;
}
any GetVariableValue(string varName, unordered_map<string, any>& variableVals)
{
auto iA = variableVals.find(varName);
if (iA != variableVals.end())
{
return iA->second;
}
else
{
auto iB = globalVariableValues.find(varName);
if (iB != globalVariableValues.end())
{
return iB->second;
}
else
{
return varName;
}
}
}
bool IsVar(string varName, unordered_map<string, any>& variableVals)
{
auto iA = variableVals.find(varName);
if (iA != variableVals.end())
{
return true;
}
return false;
}
vector<any> VarValues(vector<string> varNames, unordered_map<string, any>& variableVals)
{
vector<any> realValues;
for (int varIndex = 0; varIndex < varNames.size(); varIndex++)
{
varNames[varIndex] = trim(varNames[varIndex]);
auto iA = variableVals.find(varNames[varIndex]);
if (iA != variableVals.end())
{
realValues.push_back(iA->second);
}
else
{
auto iB = globalVariableValues.find(varNames[varIndex]);
if (iB != globalVariableValues.end())
{
realValues.push_back(iB->second);
}
else
{
realValues.push_back(varNames[varIndex]);
}
}
}
return realValues;
}
bool IsFunction(string funcName)
{
auto iA = functionValues.find(funcName);
if (iA != functionValues.end())
{
return true;
}
else
{
return false;
}
}
any EvalExpression(string expression, unordered_map<string, any>& variableVals)
{
expression = trim(expression);
bool inQuotes = false;
// If no operations are applied, then return self
if ((count(expression, '+') == 0 && count(expression, '-') == 0 && count(expression, '*') == 0 && count(expression, '/') == 0 && count(expression, '(') == 0 && count(expression, '^') == 0) || split(expression, '.')[0] == "CPP")
{
int funcIndex = IsFunction(split(expression, '(')[0]);
if (funcIndex != -1 && !inQuotes)
{
//cout << split(expression, '(')[0] << endl;
string argContents = "";
int y = indexInStr(expression, '(') + 1;
while (y < expression.size() && expression[y] != ')')
{
argContents += expression[y];
y++;
}
//cout << split(expression, '(')[0] << " " << argContents << endl;
return ExecuteFunction(split(expression, '(')[0], VarValues(split(argContents, ','), variableVals));
}
else if (split(expression, '.')[0] == "CPP" && !inQuotes)
{
string argContents = "";
int y = indexInStr(expression, '(') + 1;
while (y < expression.size() && expression[y] != ')')
{
argContents += expression[y];
y++;
}
//cout << split(expression, '(')[0] << " " << unWrapVec(VarValues(split(argContents, ','), variables, variableVals)) << endl;
return CPPFunction(split(expression, '(')[0], VarValues(split(argContents, ','), variableVals));
}
else
return GetVariableValue(expression, variableVals);
}
string newExpression = "";
inQuotes = false;
for (int i = 0; i < expression.size(); i++)
{
if (expression[i] == '\"')
inQuotes = !inQuotes;
if (isalpha(expression[i]))
{
string name = "";
while (i < expression.size() && (isalpha(expression[i]) || expression[i] == '.'))
{
name += expression[i];
i++;
}
//string varVal = GetVariableValue(name, variables, variableVals);
any funcPointer = IsFunction(name);
if (funcIndex != -1 && !inQuotes)
{
string argContents = "";
i++;
while (i < expression.size() && expression[i] != ')')
{
argContents += expression[i];
i++;
}
string returnVal = ExecuteFunction(name, VarValues(split(argContents, ','), variableVals));
newExpression += returnVal;
//cout << newExpression << endl;
}
else if (split(name, '.')[0] == "CPP" && !inQuotes)
{
string argContents = "";
int y = indexInStr(expression, '(') + 1;
while (y < expression.size() && expression[y] != ')')
{
argContents += expression[y];
y++;
}
//cout << split(expression, '(')[0] << " " << argContents << endl;
string returnVal = CPPFunction(split(name, '(')[0], VarValues(split(argContents, ',') variableVals));
newExpression += returnVal;
}
else
{
if (inQuotes)
newExpression += name;
else
newExpression += GetVariableValue(name, variableVals);
}
i--;
}
else
{
newExpression += expression[i];
}
}
//cout << "NEW EXPRESSION: " << newExpression << endl;
bool addStrings = false;
for (int i = 0; i < (int)newExpression.size(); i++)
if (isalpha(newExpression[i]) || newExpression[i] == '\"')
{
addStrings = true;
break;
}
if (addStrings)
{
inQuotes = false;
string withoutParenthesis = "";
for (int i = 0; i < (int)newExpression.size(); i++)
{
if (newExpression[i] == '\"')
{
inQuotes = !inQuotes;
continue;
}
if (inQuotes)
withoutParenthesis += newExpression[i];
if (!inQuotes && newExpression[i] != '(' && newExpression[i] != ')' && newExpression[i] != '+' && newExpression[i] != ' ')
withoutParenthesis += newExpression[i];
}
//cout << "NewSTRING = " << Quoted(withoutParenthesis) << endl;
return Quoted(withoutParenthesis);
}
else
return stof(evaluate(newExpression));
}
bool BooleanLogic(string valA, string determinant, string valB, unordered_map<string, any>& variableVals)
{
string valARealValue = EvalExpression(valA, variableVals);
string valBRealValue = EvalExpression(valB, variableVals);
if (determinant == "==")
return valARealValue == valBRealValue;
if (determinant == "!=")
return valARealValue != valBRealValue;
if (determinant == ">=")
return floatval(valARealValue) >= floatval(valBRealValue);
if (determinant == "<=")
return floatval(valARealValue) <= floatval(valBRealValue);
if (determinant == ">")
return floatval(valARealValue) > floatval(valBRealValue);
if (determinant == "<")
return floatval(valARealValue) < floatval(valBRealValue);
return false;
}
int evalEqu(vector<string> str, unordered_map<string, any>& variableValues)
{
if (IsVar(str[0], variableValues))
{
if (str[1] == "=")
variableValues[str[0]] = EvalExpression(unWrapVec(vector<string>(str.begin() + 2, str.end())), variableValues);
else if (str[1] == "+=")
variableValues[str[0]] += EvalExpression(unWrapVec(vector<string>(str.begin() + 2, str.end())), variableValues);
else if (str[1] == "-=")
variableValues[str[0]] -= EvalExpression(unWrapVec(vector<string>(str.begin() + 2, str.end())), variableValues);
else if (str[1] == "*=")
variableValues[str[0]] *= EvalExpression(unWrapVec(vector<string>(str.begin() + 2, str.end())), variableValues);
else if (str[1] == "/=")
variableValues[str[0]] /= EvalExpression(unWrapVec(vector<string>(str.begin() + 2, str.end())), variableValues);
//cout << variables[v] << " is " << variableValues[v] << endl;
return 0;
}
else if (IsVar(str[0], globalVariableValues))
{
if (str[1] == "=")
globalVariableValues[str[0]] = EvalExpression(unWrapVec(vector<string>(str.begin() + 2, str.end())), variableValues);
else if (str[1] == "+=")
globalVariableValues[str[0]] += EvalExpression(unWrapVec(vector<string>(str.begin() + 2, str.end())), variableValues);
else if (str[1] == "-=")
globalVariableValues[str[0]] -= EvalExpression(unWrapVec(vector<string>(str.begin() + 2, str.end())), variableValues);
else if (str[1] == "*=")
globalVariableValues[str[0]] *= EvalExpression(unWrapVec(vector<string>(str.begin() + 2, str.end())), variableValues);
else if (str[1] == "/=")
globalVariableValues[str[0]] /= EvalExpression(unWrapVec(vector<string>(str.begin() + 2, str.end())), variableValues);
//cout << variables[v] << " is " << variableValues[v] << endl;
return 0;
}
return 1;
}
any ProcessLine(vector<vector<string>> words, int lineNum, unordered_map<string, any>& variableValues)
{
if (words[lineNum][0][0] == '/' && words[lineNum][0][1] == '/')
return 0;
// If print statement (deprecated, now use CPP.System.Print() function)
if (words[lineNum][0] == "print")
{
cout << StringRaw(EvalExpression(unWrapVec(vector<string>(words[lineNum].begin() + 1, words[lineNum].end())), variableValues)) << endl;
return 0;
}
// Check if function return
if (words[lineNum][0] == "return")
return EvalExpression(unWrapVec(vector<string>(words[lineNum].begin() + 1, words[lineNum].end())), variableValues);
// Check if it is CPP Builtin function
if (words[lineNum][0][0] == 'C' && words[lineNum][0][1] == 'P' && words[lineNum][0][2] == 'P' && words[lineNum][0][3] == '.')
return EvalExpression(unWrapVec(words[lineNum]), variableValues);
// Check if it is function
auto iA = functionValues.find(split(functions[t], ' ')[0]);
if (iA != functionValues.end())
{
ExecuteFunction(split(functions[t], ' ')[0], VarValues(split(RMParenthesis(replace(unWrapVec(words[lineNum]), split(functions[t], ' ')[0], "")), ','), variableValues));
return 0;
}
// Iterate through all types to see if line inits or
// re-inits a variable then store it with it's value
for (int t = 0; t < (int)types.size(); t++)
{
if (words[lineNum][0] == types[t])
{
variableValues[words[lineNum][1]] = EvalExpression(unWrapVec(vector<string>(words[lineNum].begin() + 3, words[lineNum].end())), variableValues);
return 0;
}
}
// Check existing variables
auto iB = variableValues.find(words[lineNum][0]);
if (iB != functionValues.end())
{
// Evaluates what the sign (ex. '=', '+=') does to the value on the left by the value on the right
evalEqu(vector<string>(words[lineNum].begin(), words[lineNum].end()), variableValues);
return 0;
}
// Gathers while loop contents
if (words[lineNum][0] == "while")
{
vector<string> whileContents;
vector<string> whileParameters;
for (int w = 1; w < (int)words[lineNum].size(); w++)
whileParameters.push_back(words[lineNum][w]);
int numOfBrackets = 1;
for (int p = lineNum + 2; p < (int)words.size(); p++)
{
numOfBrackets += countInVector(words[p], "{") - countInVector(words[p], "}");
if (numOfBrackets == 0)
break;
whileContents.push_back("");
for (int w = 0; w < (int)words[p].size(); w++)
{
whileContents[(int)whileContents.size() - 1] += words[p][w] + " ";
}
}
whileContents = removeTabs(whileContents, 1);
vector<vector<string>> innerWords;
for (int i = 0; i < (int)whileContents.size(); i++)
innerWords.push_back(split(whileContents[i], ' '));
while (BooleanLogic(whileParameters[0], whileParameters[1], whileParameters[2], variableValues))
{
//Iterate through all lines in while loop
for (int lineNum = 0; lineNum < (int)whileContents.size(); lineNum++)
{
string returnVal = ProcessLine(innerWords, lineNum, variableValues);
if (returnVal != 0)
return returnVal;
}
}
return 0;
}
// Gathers if statement contents
if (words[lineNum][0] == "if")
{
vector<string> ifContents;
vector<string> ifParameters;
for (int w = 1; w < (int)words[lineNum].size(); w++)
ifParameters.push_back(words[lineNum][w]);
int numOfBrackets = 1;
lineNum += 2;
while (lineNum < (int)words.size())
{
numOfBrackets += countInVector(words[lineNum], "{") - countInVector(words[lineNum], "}");
if (numOfBrackets == 0)
break;
ifContents.push_back("");
for (int w = 0; w < (int)words[lineNum].size(); w++)
{
ifContents[(int)ifContents.size() - 1] += words[lineNum][w] + " ";
}
lineNum++;
}
ifContents = removeTabs(ifContents, 1);
vector<vector<string>> innerWords;
for (int i = 0; i < (int)ifContents.size(); i++)
innerWords.push_back(split(ifContents[i], ' '));
if (BooleanLogic(ifParameters[0], ifParameters[1], ifParameters[2], variableValues))
{
//Iterate through all lines in if statement
for (int l = 0; l < (int)ifContents.size(); l++)
{
string returnVal = ProcessLine(innerWords, l, variableValues);
if (returnVal != 0)
return returnVal;
}
}
else if (words.size() > lineNum + 1)
if (words[lineNum + 1][0] == "else")
{
lineNum += 1;
vector<string> elseContents;
int numOfBrackets = 1;
while (lineNum < (int)words.size())
{
numOfBrackets += countInVector(words[lineNum], "{") - countInVector(words[lineNum], "}");
if (numOfBrackets == 0)
break;
elseContents.push_back("");
for (int w = 0; w < (int)words[lineNum].size(); w++)
{
elseContents[(int)elseContents.size() - 1] += words[lineNum][w] + " ";
}
lineNum++;
}
elseContents = removeTabs(elseContents, 2);
vector<vector<string>> innerWords;
for (int i = 0; i < (int)elseContents.size(); i++)
words.push_back(split(elseContents[i], ' '));
//Iterate through all lines in else statement
for (int lineNum = 0; lineNum < (int)elseContents.size(); lineNum++)
{
ProcessLine(innerWords, lineNum, variableValues);
}
return 0;
}
return 0;
}
//// Gathers else statement contents
//if (words[lineNum][0] == "else")
//{
//
//}
return 0;
}
any ExecuteFunction(string functionName, vector<any> inputVarVals)
{
//vector<string> inputVarVals = split(replace(inVals, " ", ""), ',');
vector<string> functionLines;
// Get contents of function
functionLines = functionValues[functionName];
unordered_map<string, any> variableValues;
vector<string> functionNameParts = split(replace(functions[functionIndex], functionName + " ", ""), ',');
for (int i = 0; i < (int)inputVarVals.size(); i++)
{
variables.push_back(trim(functionNameParts[i]));
variableValues.push_back(EvalExpression(inputVarVals[i], variables, variableValues));
//cout << variables[(int)variables.size() - 1] << " is " << variableValues[(int)variableValues.size() - 1] << endl;
}
vector<vector<string>> words;
for (int i = 0; i < (int)functionLines.size(); i++)
words.push_back(split(functionLines[i], ' '));
//Iterate through all lines in function
for (int lineNum = 0; lineNum < (int)functionLines.size(); lineNum++)
{
string returnVal = "";
try
{
returnVal = ProcessLine(words, lineNum, variables, variableValues);
}
catch (const std::exception&)
{
cout << "\x1B[31mERROR: \'" << unWrapVec(words[lineNum]) << "\'\nIn function: " << functionName << "\nLine: " << lineNum << "\033[0m\t\t" << endl;
exit(1);
}
if (returnVal != "")
return returnVal;
}
return "";
}
int parseSlang(string script)
{
script = replace(script, " ", "\t");
vector<string> lines = split(script, '\n');
vector<vector<string>> words;
for (int i = 0; i < (int)lines.size(); i++)
words.push_back(split(lines[i], ' '));
// First go through entire script and iterate through all types to see if line is a variable
// or function declaration, then store it with it's value
for (int lineNum = 0; lineNum < (int)words.size(); lineNum++)
for (int t = 0; t < (int)types.size(); t++)
if (words[lineNum][0] == types[t])
{
//Checks if it is function
if (words[lineNum][(int)words[lineNum].size() - 1][(int)words[lineNum][(int)words[lineNum].size() - 1].size() - 1] == ')')
{
vector<string> functionContents;
string functName;
for (int w = 1; w < (int)words[lineNum].size(); w++) {
if (w < (int)words[lineNum].size() - 1)
{
functName += replace(replace(words[lineNum][w], "(", " "), ")", "") + " ";
}
else
{
functName += replace(replace(words[lineNum][w], "(", " "), ")", "");
}
}
int numOfBrackets = 1;
for (int p = lineNum + 2; p < (int)words.size(); p++)
{
numOfBrackets += countInVector(words[p], "{") - countInVector(words[p], "}");
if (numOfBrackets == 0)
break;
functionContents.push_back("");
for (int w = 0; w < (int)words[p].size(); w++)
{
functionContents[(int)functionContents.size() - 1] += words[p][w] + " ";
}
}
functionContents = removeTabs(functionContents, 1);
functionValues[functName] = functionContents;
//cout << functName << " is \n" << Vec2Str(functionContents) << endl << endl;
}
//Checks if it is variable
else
{
if(words[lineNum][0] == "string")
globalVariableValues[words[lineNum][1]] = words[lineNum][3];
else if(words[lineNum][0] == "int")
globalVariableValues[words[lineNum][1]] = stoi(words[lineNum][3]);
else if(words[lineNum][0] == "float")
globalVariableValues[words[lineNum][1]] = stof(words[lineNum][3]);
else if(words[lineNum][0] == "bool")
globalVariableValues[words[lineNum][1]] = stob(words[lineNum][3]);
//cout << words[lineNum][1] << " is " << words[lineNum][3] << endl;
}
}
// Executes main, which is the starting function
ExecuteFunction("Main", vector<any> {"hi", 0});
return 0;
}
int main(int argc, char* argv[])
{
// Get builtin script contents
ifstream builtin("../Slang/builtin.slg");
stringstream builtinString;
builtinString << builtin.rdbuf();
// Gathers builtin functions and variables
GetBuiltins(builtinString.str());
functionValues = builtinFunctionValues;
globalVariableValues = builtinVarVals;
// Get default script contents
ifstream script("../Slang/script.slg");
stringstream scriptString;
scriptString << script.rdbuf();
while (true) {
system("pause");
break;
}
parseSlang(scriptString.str());
return 0;
}