private SymbolType 类型() {
Token token = tokens.get(index++);
if (token.getWord().equals("int")) {
return SymbolType.Integer;
} else if (token.getWord().equals("double")) {
return SymbolType.Double;
} else {
throw new RuntimeException("读取的不是int,double");
}
}
private void 句子() {
Token token = tokens.get(index++);
if (token.getWord().equals("int") || token.getWord().equals("double")) {
index--;
SymbolType type = 类型();
token = tokens.get(index++);
if (token.getType() == TokenType.identifier) {
Symbol symbol = this.symbolTable.get(token.getWord());
symbol.setType(type);
} else {
throw new RuntimeException("读取的不是标示符");
}
String digit = A();
Symbol symbol = this.symbolTable.get(token.getWord());
symbol.setValue(digit);
}
}
private String A() {
Token token = tokens.get(index++);
if (token.getWord().equals("=")) {
token = tokens.get(index++);
if (token.getType() == TokenType.digit) {
return token.getWord();
} else {
throw new RuntimeException("读取的不是数字");
}
} else if (token.getWord().equals(";")) {
index--;
} else {
throw new RuntimeException("读取的不是=或者;");
}
return null;
}
private void S() {
Token token = tokens.get(index++);
if (token.getWord().equals("int") || token.getWord().equals("double")) {
index--;
句子();
token = tokens.get(index++);
if (token.getWord().equals(";")) {
} else {
throw new RuntimeException("读取的不是;");
}
S();
} else if (token.getWord().equals("#")) {
System.out.println("语法正确！");
} else {
throw new RuntimeException("读取的不是int或者#");
}
}
/**
* Sets the token list for this utterance. Note that this could be optimized by turning the token
* list directly into the token relation.
*
* @param tokenList the tokenList
*/
private void setTokenList(List tokenList) {
setInputText(tokenList);
Relation relation = createRelation(Relation.TOKEN);
for (Iterator i = tokenList.iterator(); i.hasNext(); ) {
Token token = (Token) i.next();
String tokenWord = token.getWord();
if (tokenWord != null && tokenWord.length() > 0) {
Item item = relation.appendItem();
FeatureSet featureSet = item.getFeatures();
featureSet.setString("name", tokenWord);
featureSet.setString("whitespace", token.getWhitespace());
featureSet.setString("prepunctuation", token.getPrepunctuation());
featureSet.setString("punc", token.getPostpunctuation());
featureSet.setString("file_pos", String.valueOf(token.getPosition()));
featureSet.setString("line_number", String.valueOf(token.getLineNumber()));
}
}
}