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PAN-64 Refactored ParserService.

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This commit is contained in:
BrittanyBi
2019-04-14 20:29:11 -06:00
parent 5de86dc498
commit ecd6584422
1 changed files with 56 additions and 38 deletions
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services/src/main/java/edu/msudenver/tsp/services/parser/ParserService.java
+56 -38
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@@ -39,10 +39,8 @@ class ParserService {
return root; return root;
} }
private void recurse(final Node current) public void recurse(final Node current)
{ {
int startIndex;
int endIndex;
final String statement; final String statement;
if (current != null) { if (current != null) {
@@ -51,60 +49,80 @@ class ParserService {
return; return;
} }
String nextStatement;
if(statement.contains("let")) if(statement.contains("let"))
{ {
current.setLeft(new Node("let", current)); separateByLet(current, statement);
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")) if(statement.contains("if"))
{ {
current.setCenter(new Node("if", current)); separateByIf(current, statement);
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")) if(current.getStatement().contains("then"))
{ {
current.setRight(new Node("then", current)); separateByThen(current, statement);
startIndex = statement.indexOf("then")+"then".length();
nextStatement = statement.substring(startIndex);
current.getRight().setCenter(new Node(nextStatement, current.getRight()));
recurse(current.getRight().getCenter());
} }
} }
public void separateByLet(final Node current, final String statement){
final int startIndex;
final int endIndex;
final String nextStatement;
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());
}
public void separateByIf(final Node current, final String statement){
final int startIndex;
final int endIndex;
final String nextStatement;
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());
}
public void separateByThen(final Node current, final String statement){
final int startIndex;
final String nextStatement;
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) public List<String> retrieveStatements(final Node parsedTree)
{ {
return populateStatementList(parsedTree, new ArrayList<>()); return populateStatementList(parsedTree, new ArrayList<>());
} }
private ArrayList<String> populateStatementList(final Node node, final ArrayList<String> statementList) public ArrayList<String> populateStatementList(final Node node, final ArrayList<String> statementList)
{ {
if(node == null) if(node == null)
{ {