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Added ability to add commits the Kraken grammer file. Started work on class traits and else statements.

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Nathan Braswell
2014-07-06 23:42:25 -07:00
parent 91a68ac2b1
commit 46b9fc8b7f
8 changed files with 57 additions and 14 deletions
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18
src/Parser.cpp
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@@ -32,10 +32,22 @@ Symbol Parser::getOrAddSymbol(std::string symbolString, bool isTerminal) {
void Parser::loadGrammer(std::string grammerInputString) {
reader.setString(grammerInputString);
std::string currToken = reader.word();
std::string currToken = reader.word(false); //Don't truncate so we can find the newline correctly (needed for comments)
while(currToken != "") {
//Load the left of the rule
//First, if this starts with a '#', skip this
if (currToken.front() == '#') {
//If this line is more than one token long, eat it
std::cout << "Ate: " << currToken << std::endl;
if (currToken.back() != '\n')
std::cout << "Eating " << reader.line() << " b/c grammer comment" << std::endl;
currToken = reader.word(false);
continue;
}
if (currToken.back() == '\n' || currToken.back() == ' ' || currToken.back() == '\t')
currToken.erase(currToken.size()-1);
//Load the left of the rule
ParseRule* currentRule = new ParseRule();
Symbol leftSide = getOrAddSymbol(currToken, false); //Left handle is never a terminal
currentRule->setLeftHandle(leftSide);
@@ -76,7 +88,7 @@ void Parser::loadGrammer(std::string grammerInputString) {
loadedGrammer.push_back(currentRule);
//Get next token
currToken = reader.word();
currToken = reader.word(false);
}
//std::cout << "Parsed!\n";