TokenStream.java

package com.laytonsmith.core.compiler;

import com.laytonsmith.core.constructs.Token;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 *
 * 
 */
public class TokenStream extends ArrayList<Token> {
	FileOptions fileOptions;

	TokenStream(List<Token> list, FileOptions options) {
		super(list);
		this.fileOptions = options;
	}

	TokenStream(List<Token> list, String fileOptions) {
		super(list);
		this.fileOptions = parseFileOptions(fileOptions);
	}

	public FileOptions getFileOptions() {
		return fileOptions;
	}

	private static FileOptions parseFileOptions(String options) {
		//Only ; needs escaping. Everything else is just trimmed, and added to the map.
		Map<String, String> map = new HashMap<String, String>();
		boolean inKey = true;
		StringBuilder buffer = new StringBuilder();
		String keyName = "";
		for (int i = 0; i < options.length(); i++) {
			Character c = options.charAt(i);
			Character c2 = null;
			if (i < options.length() - 1) {
				c2 = options.charAt(i + 1);
			}
			if (inKey) {
				if (c == ':') {
					keyName = buffer.toString();
					buffer = new StringBuilder();
					inKey = false;
				} else if (c == ';') {
					//Self closed
					map.put(buffer.toString().trim().toLowerCase(), "true");
					buffer = new StringBuilder();
					keyName = "";
					//We don't reset the inKey parameter
				} else {
					buffer.append(c);
				}
			} else {
				if (c == '\\' && c2 == ';') {
					buffer.append(';');
					i++;
				} else if (c == ';') {
					//We're done
					inKey = true;
					map.put(keyName.trim().toLowerCase(), buffer.toString());
					buffer = new StringBuilder();
				} else {
					buffer.append(c);
				}
			}
		}
		if (buffer.length() > 0) {
			if (!inKey) {
				map.put(keyName.trim().toLowerCase(), buffer.toString());
			} else {
				if (!buffer.toString().trim().isEmpty()) {
					map.put(buffer.toString().trim().toLowerCase(), "true");
				}
			}
		}
		FileOptions fo = new FileOptions(map);
		return fo;
	}
    
}