public static ForLoopData ParseForLoop(string line, StringReader reader, Dictionary <string, object> inherited)
{
ExpressionContext context = FleeHelper.GetExpression(inherited);
string errorMessage = "";
try
{
// for(int i = 0; i < 50; i++) {
// for (int i=0;i<20;i++){
// for (int i=0;i<20;i++)
string mod = line.Remove(0, 3).Trim();
// (int i = 0; i < 50; i++) {
// (int i=0;i<20;i++){
// (int i=0;i<20;i++)
// (long val=1; val <50; val+=2){
errorMessage = "Invalid for loop syntax!";
mod = mod.Remove(0, 1);
// int i = 0; i < 50; i++) {
// int i=0;i<20;i++){
// int i=0;i<20;i++)
// long val=1; val <50; val+=2){
errorMessage = "Unsupported iteration type!";
mod = mod.Replace("int ", "").Replace("long ", "");
// i = 0; i < 50; i++) {
// i=0;i<20;i++){
// i=0;i<20;i++)
// val=1; val <50; val+=2){
errorMessage = "Redefinition of variable!";
string variableName = mod.Split('=')[0].Trim();
if (inherited.ContainsKey(variableName))
{
throw new ParsingException(errorMessage, line);
}
mod = mod.Remove(0, mod.IndexOf("=") + 1).Trim();
// 0; i < 50; i++) {
// 0 ;i<20;i++){
// 0 ;i<20;i++)
// 1; val <50; val+=2){
errorMessage = "Invalid expression for starting value!";
IGenericExpression <int> startValueExp = context.CompileGeneric <int>(mod.Split(';')[0].Trim());
errorMessage = "Invalid for loop syntax!";
mod = mod.Remove(0, mod.IndexOf(";") + 1).Trim();
// i < 50; i++) {
// i<20 ;i++){
// i<20 ;i++)
// val >=50; val+=2){
mod = mod.Remove(0, variableName.Length).Trim();
// < 50; i++) {
// <20 ;i++){
// <20 ;i++)
// >=50; val+=2){
string lhs = mod.Split(';')[0].Trim();
ConditionType condition = LogicParsers.ParseCondition(lhs);
if (lhs.Contains("="))
{
mod = mod.Remove(0, 2).Trim();
}
else
{
mod = mod.Remove(0, 1).Trim();
}
string[] endValAndChange = mod.Split(';');
errorMessage = "Invalid expression for end value!";
IGenericExpression <int> endValueExp = context.CompileGeneric <int>(endValAndChange[0].Trim());
errorMessage = "Invalid for loop syntax!";
mod = endValAndChange[1].Trim();
// i++) {
// i++){
// i++)
// val +=2){
mod = mod.Remove(0, variableName.Length).Trim();
// ++) {
// ++){
// ++)
// +=2){
OperatorType _operator = LogicParsers.ParseOperator(mod.Split(')')[0]);
mod = mod.Remove(0, 2).Trim();
// ) {
// ){
// )
// 2){
IGenericExpression <int> changeValueExp = null;
if (_operator == OperatorType.PlusEquals || _operator == OperatorType.MinusEquals)
{
string[] changeSplit = mod.Split(')');
errorMessage = "Invalid expression for change of value!";
changeValueExp = context.CompileGeneric <int>(changeSplit[0]);
mod = changeSplit[1].Trim();
}
// ) {
// ){
// )
// ){
mod = mod.Replace(")", "");
// {
//{
if (!mod.Contains("{"))
{
BlockParser.ReadToBlock(reader, line);
}
List <string> lines = BlockParser.ParseBlock(reader);
return(new ForLoopData(inherited.Copy(), line)
{
From = startValueExp,
To = endValueExp,
LoopVariable = variableName,
Change = changeValueExp,
Condition = condition,
Operator = _operator,
Lines = lines,
});
}
catch (ParsingException)
{
throw;
}
catch (Exception e)
{
throw new ParsingException(errorMessage, line, e);
}
}
public static ConditionalData ParseIfBlock(string line, StringReader reader, Dictionary <string, object> variables)
{
//if (i > 50) {
//if (i <= 50) {
//if(i > 50) {
//if (i > 50){
string mod = line.Remove(0, 2).TrimStart();
//(i > 50) {
//(i <= 50) {
//(i > 50) {
//(i == 50){
mod = mod.Replace("{", "").Trim();
if (line.IndexOf('(') == -1)
{
throw new ParsingException("If statement invalid syntax!", line);
}
if (line.IndexOf(')') == -1)
{
throw new ParsingException("If statement invalid syntax!", line);
}
mod = mod.Trim('(', ')');
int equalsIndex = mod.IndexOf("=");
if (equalsIndex == mod.LastIndexOf("=") && equalsIndex != -1 && mod[equalsIndex - 1] != '!')
{
throw new ParsingException("If statement invalid syntax (== for comparison)!", line);
}
mod = mod.Replace("==", "=");
mod = mod.Replace("!=", "<>");
ExpressionContext context = FleeHelper.GetExpression(variables);
try
{
IGenericExpression <bool> ifCondition = context.CompileGeneric <bool>(mod);
if (!line.EndsWith("{"))
{
BlockParser.ReadToBlock(reader, line);
}
List <string> lines = BlockParser.ParseBlock(reader);
List <ParsedData> isStatement = new List <ParsedData>();
Queue <ParsedData> data = CommandParser.Parse(string.Join(Environment.NewLine, lines), MainWindow.Instance, variables);
isStatement.AddRange(data);
return(new ConditionalData(line, ifCondition, data, variables.Copy()));
}
catch (ParsingException)
{
throw;
}
catch (Exception e)
{
throw new ParsingException("Invalid boolean expression!", line, e);
}
}
