Deleted unrelated file

2019-05-02 11:07:19 -06:00
parent 1c69c8998c
commit 294d2a9dfd
1 changed files with 0 additions and 126 deletions
@@ -1,126 +0,0 @@
 package edu.msudenver.tsp.services.parser;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 import java.util.ArrayList;
 import java.util.List;
@Slf4j
@Service
 class ParserService {
    public boolean parseUserInput(final String userInput)
    {
        try {
            final Node tree = parseRawInput(userInput);
            retrieveStatements(tree);
            return true;
        } catch(final Exception e) {
            LOG.error(e.getMessage());
        }
        return false;
    }
    public Node parseRawInput(String input)
    {
        input = input.toLowerCase();
        final Node root = new Node(input, null);
        if(input.equals(""))
        {
            return root;
        }
        recurse(root);
        return root;
    }
    private void recurse(final Node current)
    {
        int startIndex;
        int endIndex;
        final String statement;
        if (current != null) {
            statement = current.getStatement();
        } else {
            return;
        }
        String nextStatement;
        if(statement.contains("let"))
        {
            current.setLeft(new Node("let", current));
            startIndex = statement.indexOf("let")+"let".length();
            if(statement.contains("if")){
                endIndex = statement.indexOf("if");
            } else if(statement.contains("then")){
                endIndex = statement.indexOf("then");
            } else {
                endIndex = statement.length();
            }
            nextStatement = statement.substring(startIndex, endIndex);
            current.getLeft().setCenter(new Node(nextStatement, current.getLeft()));
            recurse(current.getLeft().getCenter());
        }
        if(statement.contains("if"))
        {
            current.setCenter(new Node("if", current));
            startIndex = statement.indexOf("if")+"if".length();
            endIndex = (statement.contains("then") ? statement.indexOf("then") : statement.length());
            nextStatement = statement.substring(startIndex, endIndex);
            current.getCenter().setCenter(new Node(nextStatement, current.getCenter()));
            recurse(current.getCenter().getCenter());
        }
        if(current.getStatement().contains("then"))
        {
            current.setRight(new Node("then", current));
            startIndex = statement.indexOf("then")+"then".length();
            nextStatement = statement.substring(startIndex);
            current.getRight().setCenter(new Node(nextStatement, current.getRight()));
            recurse(current.getRight().getCenter());
        }
    }
    public List<String> retrieveStatements(final Node parsedTree)
    {
        return populateStatementList(parsedTree, new ArrayList<>());
    }
    private ArrayList<String> populateStatementList(final Node node, final ArrayList<String> statementList)
    {
        if(node == null)
        {
            return statementList;
        }
        final String statement = node.getStatement().trim();
        if(!(statement.contains("let") || statement.contains("if") || statement.contains("then")))
        {
            statementList.add(statement);
        }
        populateStatementList(node.getLeft(), statementList);
        populateStatementList(node.getCenter(), statementList);
        populateStatementList(node.getRight(), statementList);
        return statementList;
    }
 }