mirror of
https://github.com/sam-astro/Z-Sharp.git
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49c26219fc
Next I need to better differentiate raw and quoted strings because the system converts at the wrong time and never converts back
517 lines
15 KiB
C++
517 lines
15 KiB
C++
#define OLC_PGE_APPLICATION
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#include "olcPixelGameEngine.h"
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#include <iostream>
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#include <fstream>
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#include <string>
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#include <regex>
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#include <limits>
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#include <algorithm>
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#include "eval.h"
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#include "strops.h"
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using namespace std;
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vector<string> types = { "int", "float", "string", "bool", "void", "null" };
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vector<string> globalVariables;
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vector<string> globalVariableValues;
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vector<string> functions;
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vector<vector<string>> functionValues;
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class Parser : public olc::PixelGameEngine
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{
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public:
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Parser()
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{
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sAppName = "Parser";
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}
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public:
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bool OnUserCreate() override
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{
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// Called once at the start
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return true;
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}
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bool OnUserUpdate(float fElapsedTime) override
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{
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// Called once per frame
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for (int x = 0; x < ScreenWidth(); x++)
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for (int y = 0; y < ScreenHeight(); y++)
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Draw(x, y, olc::Pixel(rand() % 128, rand() % 128, rand() % 128));
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return true;
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}
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};
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int ExecuteFunction(string functionName, vector<string> inputVarVals);
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bool isNumber(const string& str)
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{
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for (char const& c : str) {
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if (isdigit(c) == 0 && c != '.') return false;
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}
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return true;
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}
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string AddItem(string varName, string variableContent, string addItem)
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{
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string typ = split(varName, ' ')[0];
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if (typ == "int" || typ == "float" || typ == "double" && isNumber(addItem))
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return to_string(floatval(to_string(floatval(variableContent) + floatval(addItem))));
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else
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return variableContent + addItem;
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}
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string StringRaw(string str)
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{
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string withoutQuotes;
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for (int ch = 1; ch < (int)str.size() - 1; ch++)
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withoutQuotes += str[ch];
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return withoutQuotes;
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}
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string GetVariableValue(string varName, vector<string>& variables, vector<string>& variableVals)
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{
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string typ = "string";
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bool isVar = false;
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// Checks against global vars
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for (int v = 0; v < (int)globalVariables.size(); v++)
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if (varName == split(globalVariables[v], ' ')[1])
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{
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typ = split(globalVariables[v], ' ')[0];
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isVar = true;
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}
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// Checks against local vars
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for (int v = 0; v < (int)variables.size(); v++)
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if (varName == split(variables[v], ' ')[1])
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{
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typ = split(variables[v], ' ')[0];
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isVar = true;
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}
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// If it is a var
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if (isVar)
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{
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// Checks against global vars
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for (int v = 0; v < (int)globalVariables.size(); v++)
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if (varName == split(globalVariables[v], ' ')[1])
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{
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return globalVariableValues[v];
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}
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// Checks against local vars
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for (int v = 0; v < (int)variables.size(); v++)
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if (varName == split(variables[v], ' ')[1])
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{
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return variableVals[v];
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}
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}
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//else if (!isVar && count(varName, '\"') > 0)
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//{
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// string withoutQuotes;
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// for (int ch = 1; ch < (int)varName.size() - 1; ch++)
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// withoutQuotes += varName[ch];
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// return withoutQuotes;
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//}
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return varName;
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}
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string EvalExpression(string expression, vector<string>& variables, vector<string>& variableVals)
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{
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expression = trim(expression);
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cout << "EXPRESSION: " << expression << endl;
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if (count(expression, '+') == 0 && count(expression, '-') == 0 && count(expression, '*') == 0 && count(expression, '/') == 0)
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return GetVariableValue(expression, variables, variableVals);
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string newExpression = "";
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bool inQuotes = false;
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for (int i = 0; i < expression.size(); i++)
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{
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if (isalpha(expression[i]))
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{
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string name = "";
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while (i < expression.size() && isalpha(expression[i]))
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{
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name += expression[i];
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i++;
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}
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newExpression += GetVariableValue(name, variables, variableVals);
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i--;
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}
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else
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{
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newExpression += expression[i];
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}
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}
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cout << "NEW EXPRESSION: " << newExpression << endl;
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bool addStrings = false;
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for (int i = 0; i < (int)newExpression.size(); i++)
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if (isalpha(newExpression[i]) || newExpression[i] == '\"')
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{
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addStrings = true;
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break;
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}
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if (addStrings)
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{
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string newStr = "";
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inQuotes = false;
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string withoutParenthesis = "";
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for (int i = 0; i < (int)newExpression.size(); i++)
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{
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if (newExpression[i] == '\"')
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{
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inQuotes = !inQuotes;
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continue;
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}
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if (inQuotes)
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withoutParenthesis += newExpression[i];
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if (!inQuotes && newExpression[i] != '(' && newExpression[i] != ')' && newExpression[i] != '+' && newExpression[i] != ' ')
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withoutParenthesis += newExpression[i];
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}
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cout << "NewSTRING = " << withoutParenthesis << endl;
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return withoutParenthesis;
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}
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else
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return to_string(evaluate(newExpression));
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}
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bool BooleanLogic(string valA, string determinant, string valB, vector<string>& variables, vector<string>& variableVals)
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{
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string valARealValue = GetVariableValue(valA, variables, variableVals);
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string valBRealValue = GetVariableValue(valB, variables, variableVals);
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if (determinant == "==")
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return valARealValue == valBRealValue;
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if (determinant == "!=")
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return valARealValue != valBRealValue;
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if (determinant == ">=")
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return floatval(valARealValue) >= floatval(valBRealValue);
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if (determinant == "<=")
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return floatval(valARealValue) <= floatval(valBRealValue);
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if (determinant == ">")
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return floatval(valARealValue) > floatval(valBRealValue);
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if (determinant == "<")
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return floatval(valARealValue) < floatval(valBRealValue);
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return false;
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}
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int evalEqu(vector<string> str, vector<string>& variables, vector<string>& variableValues)
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{
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// Iterate all existing local variable names
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for (int v = 0; v < (int)variables.size(); v++)
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{
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if (str[0] == split(variables[v], ' ')[1])
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{
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if (str[1] == "=")
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variableValues[v] = EvalExpression(unWrapVec(vector<string>(str.begin() + 2, str.end())), variables, variableValues);
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else if (str[1] == "+=")
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variableValues[v] = EvalExpression(variableValues[v] + "+(" + unWrapVec(vector<string>(str.begin() + 2, str.end())) + ")", variables, variableValues);
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else if (str[1] == "-=")
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variableValues[v] = EvalExpression(variableValues[v] + "-(" + unWrapVec(vector<string>(str.begin() + 2, str.end())) + ")", variables, variableValues);
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else if (str[1] == "*=")
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variableValues[v] = EvalExpression(variableValues[v] + "*(" + unWrapVec(vector<string>(str.begin() + 2, str.end())) + ")", variables, variableValues);
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else if (str[1] == "/=")
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variableValues[v] = EvalExpression(variableValues[v] + "/(" + unWrapVec(vector<string>(str.begin() + 2, str.end())) + ")", variables, variableValues);
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cout << variables[v] << " is " << variableValues[v] << endl;
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return 0;
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}
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}
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// Iterate all existing global variable names
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for (int v = 0; v < (int)globalVariables.size(); v++)
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{
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if (str[0] == split(globalVariables[v], ' ')[1])
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{
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if (str[1] == "=")
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globalVariableValues[v] = EvalExpression(unWrapVec(vector<string>(str.begin() + 2, str.end())), variables, variableValues);
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else if (str[1] == "+=")
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globalVariableValues[v] = EvalExpression(variableValues[v] + "+(" + unWrapVec(vector<string>(str.begin() + 2, str.end())) + ")", variables, variableValues);
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else if (str[1] == "-=")
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globalVariableValues[v] = EvalExpression(variableValues[v] + "-(" + unWrapVec(vector<string>(str.begin() + 2, str.end())) + ")", variables, variableValues);
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else if (str[1] == "*=")
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globalVariableValues[v] = EvalExpression(variableValues[v] + "*(" + unWrapVec(vector<string>(str.begin() + 2, str.end())) + ")", variables, variableValues);
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else if (str[1] == "/=")
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globalVariableValues[v] = EvalExpression(variableValues[v] + "/(" + unWrapVec(vector<string>(str.begin() + 2, str.end())) + ")", variables, variableValues);
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cout << variables[v] << " is " << variableValues[v] << endl;
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return 0;
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}
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}
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}
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int ProcessLine(vector<vector<string>> words, int lineNum, vector<string>& variables, vector<string>& variableValues)
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{
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if (words[lineNum][0][0] == '/' && words[lineNum][0][1] == '/')
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return 0;
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if (words[lineNum][0] == "print") {
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cout << EvalExpression(unWrapVec(vector<string>(words[lineNum].begin() + 1, words[lineNum].end())), variables, variableValues) << endl;
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return 0;
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}
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// Iterate through all functions
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for (int t = 0; t < (int)functions.size(); t++)
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{
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if (words[lineNum][0] == split(functions[t], ' ')[0])
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{
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ExecuteFunction(words[lineNum][0], split(unWrapVec(rangeInVec(words[lineNum], 1, -1)), ','));
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return 0;
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}
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}
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// First iterate through all types to see if line
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// inits a variable then store it with it's value
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for (int t = 0; t < (int)types.size(); t++)
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{
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if (words[lineNum][0] == types[t])
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{
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//Checks if it is a re-init of an existing variable
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for (int v = 0; v < (int)variables.size(); v++)
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{
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if (words[lineNum][1] == split(variables[v], ' ')[1])
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{
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evalEqu(vector<string>(words[lineNum].begin() + 1, words[lineNum].end()), variables, variableValues);
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return 0;
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}
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}
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//Checks if it is variable
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variables.push_back(words[lineNum][0] + " " + words[lineNum][1]);
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variableValues.push_back(EvalExpression(unWrapVec(vector<string>(words[lineNum].begin() + 3, words[lineNum].end())), variables, variableValues));
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cout << variables[(int)variables.size() - 1] << " is " << variableValues[(int)variableValues.size() - 1] << endl;
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return 0;
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}
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}
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// Second, iterate all existing variable names
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for (int v = 0; v < (int)variables.size(); v++)
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{
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if (words[lineNum][0] == split(variables[v], ' ')[1])
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{
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evalEqu(vector<string>(words[lineNum].begin(), words[lineNum].end()), variables, variableValues);
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return 0;
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}
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}
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// Gathers while loop contents
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if (words[lineNum][0] == "while")
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{
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vector<string> whileContents;
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vector<string> whileParameters;
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for (int w = 1; w < (int)words[lineNum].size(); w++)
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whileParameters.push_back(words[lineNum][w]);
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int numOfBrackets = 1;
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for (int p = lineNum + 2; p < (int)words.size(); p++)
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{
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numOfBrackets += countInVector(words[p], "{") - countInVector(words[p], "}");
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if (numOfBrackets == 0)
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break;
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whileContents.push_back("");
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for (int w = 0; w < (int)words[p].size(); w++)
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{
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whileContents[(int)whileContents.size() - 1] += words[p][w] + " ";
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}
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}
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whileContents = removeTabs(whileContents, 1);
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vector<vector<string>> words;
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for (int i = 0; i < (int)whileContents.size(); i++)
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words.push_back(split(whileContents[i], ' '));
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while (BooleanLogic(whileParameters[0], whileParameters[1], whileParameters[2], variables, variableValues))
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{
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//Iterate through all lines in while loop
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for (int lineNum = 0; lineNum < (int)whileContents.size(); lineNum++)
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{
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ProcessLine(words, lineNum, variables, variableValues);
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}
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}
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return 0;
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}
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// Gathers if statement contents
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if (words[lineNum][0] == "if")
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{
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vector<string> ifContents;
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vector<string> ifParameters;
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for (int w = 1; w < (int)words[lineNum].size(); w++)
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ifParameters.push_back(words[lineNum][w]);
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int numOfBrackets = 1;
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for (int p = lineNum + 2; p < (int)words.size(); p++)
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{
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numOfBrackets += countInVector(words[p], "{") - countInVector(words[p], "}");
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if (numOfBrackets == 0)
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break;
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ifContents.push_back("");
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for (int w = 0; w < (int)words[p].size(); w++)
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{
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ifContents[(int)ifContents.size() - 1] += words[p][w] + " ";
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}
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}
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ifContents = removeTabs(ifContents, 1);
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vector<vector<string>> words;
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for (int i = 0; i < (int)ifContents.size(); i++)
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words.push_back(split(ifContents[i], ' '));
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if (BooleanLogic(ifParameters[0], ifParameters[1], ifParameters[2], variables, variableValues))
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{
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//Iterate through all lines in while loop
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for (int lineNum = 0; lineNum < (int)ifContents.size(); lineNum++)
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{
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ProcessLine(words, lineNum, variables, variableValues);
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}
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}
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return 0;
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}
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return 0;
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}
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int ExecuteFunction(string functionName, vector<string> inputVarVals)
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{
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//vector<string> inputVarVals = split(replace(inVals, " ", ""), ',');
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vector<string> functionLines;
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int functionIndex = 0;
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//Get index of function
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for (int f = 0; f < (int)functions.size(); f++)
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if (split(functions[f], ' ')[0] == functionName)
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{
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functionLines = functionValues[f];
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functionIndex = f;
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break;
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}
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vector<string> variables;
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vector<string> variableValues;
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vector<string> functionNameParts = split(replace(functions[functionIndex], functionName + " ", ""), ',');
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for (int i = 0; i < (int)functionNameParts.size(); i++)
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{
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variables.push_back(trim(functionNameParts[i]));
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variableValues.push_back(EvalExpression(inputVarVals[i], variables, variableValues));
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cout << variables[(int)variables.size() - 1] << " is " << variableValues[(int)variableValues.size() - 1] << endl;
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}
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vector<vector<string>> words;
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for (int i = 0; i < (int)functionLines.size(); i++)
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words.push_back(split(functionLines[i], ' '));
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//Iterate through all lines in function
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for (int lineNum = 0; lineNum < (int)functionLines.size(); lineNum++)
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{
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ProcessLine(words, lineNum, variables, variableValues);
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}
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return 0;
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}
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int parseSlang(string script)
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{
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script = replace(script, " ", "\t");
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vector<string> lines = split(script, '\n');
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vector<vector<string>> words;
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for (int i = 0; i < (int)lines.size(); i++)
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{
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words.push_back(split(lines[i], ' '));
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}
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// First go through entire script and iterate through all types to see if line is a variable
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// or function declaration, then store it with it's value
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for (int lineNum = 0; lineNum < (int)words.size(); lineNum++)
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for (int t = 0; t < (int)types.size(); t++)
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if (words[lineNum][0] == types[t])
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{
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//Checks if it is function
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if (words[lineNum][(int)words[lineNum].size() - 1][(int)words[lineNum][(int)words[lineNum].size() - 1].size() - 1] == ')')
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{
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vector<string> functionContents;
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string functName;
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for (int w = 1; w < (int)words[lineNum].size(); w++) {
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if (w < (int)words[lineNum].size() - 1)
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{
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functName += replace(replace(words[lineNum][w], "(", " "), ")", "") + " ";
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}
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else
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{
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functName += replace(replace(words[lineNum][w], "(", " "), ")", "");
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}
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}
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int numOfBrackets = 1;
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for (int p = lineNum + 2; p < (int)words.size(); p++)
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{
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numOfBrackets += countInVector(words[p], "{") - countInVector(words[p], "}");
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if (numOfBrackets == 0)
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break;
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functionContents.push_back("");
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for (int w = 0; w < (int)words[p].size(); w++)
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{
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functionContents[(int)functionContents.size() - 1] += words[p][w] + " ";
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}
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}
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functionContents = removeTabs(functionContents, 1);
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functions.push_back(functName);
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functionValues.push_back(functionContents);
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cout << functName << " is \n" << Vec2Str(functionContents) << endl << endl;
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}
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//Checks if it is variable
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else
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{
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globalVariables.push_back(words[lineNum][0] + " " + words[lineNum][1]);
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globalVariableValues.push_back((string)words[lineNum][3]);
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cout << words[lineNum][1] << " is " << words[lineNum][3] << endl;
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}
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}
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// Executes main, which is the starting function
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ExecuteFunction("Main", vector<string> {"\"hi\"", "7"});
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return 0;
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}
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int main(int argc, char* argv[])
|
|
{
|
|
ifstream t("../Slang/script.slg");
|
|
stringstream scriptString;
|
|
scriptString << t.rdbuf();
|
|
|
|
while (true) {
|
|
system("pause");
|
|
break;
|
|
}
|
|
parseSlang(scriptString.str());
|
|
|
|
/*if (argc >= 2)
|
|
{
|
|
cout << argv[1];
|
|
|
|
Parser window1;
|
|
if (window1.Construct(128, 128, 2, 2))
|
|
window1.Start();
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
return 1;
|
|
}*/
|
|
return 0;
|
|
} |