Java Stack Usage resolveSeparateIfSentence(List lines, int cursor, List target, String space)

Description

resolve Separate If Sentence

License

Open Source License

Declaration

private static int resolveSeparateIfSentence(List<String> lines, int cursor, List<String> target,
            String space) 

Method Source Code

//package com.java2s;

import java.util.List;
import java.util.Stack;

public class Main {
    private static int resolveSeparateIfSentence(List<String> lines, int cursor, List<String> target,
            String space) {/*from   w w  w. j a  v  a  2  s .  c om*/
        int next = cursor + 1;
        int end = indexOfSeparateIfSentence(lines, lines.get(cursor), next);
        if (end != -1) {
            for (int i = cursor; i < end; i++) {
                target.add(lines.get(i));
            }
            target.add(lines.get(end) + " {");
            target.add(lines.get(end + 1));
            target.add(space + "}");
            return end - cursor + 1;
        } else {
            return 0;
        }
    }

    private static int indexOfSeparateIfSentence(List<String> lines, String beforeFragment, int cursor) {
        String currentLine = lines.get(cursor);
        currentLine = removeComments(currentLine);
        if (currentLine.matches("^.*\\s*\\{\\s*$")) {
            return -1;
        }
        String line = beforeFragment + currentLine;
        if (isBalance(line)) {
            return cursor;
        } else {
            return indexOfSeparateIfSentence(lines, line, ++cursor);
        }
    }

    private static String removeComments(String line) {
        int index = line.indexOf("//");
        if (index != -1) {
            return line.substring(0, index);
        }
        return line;
    }

    private static boolean isBalance(String line) {
        Stack<Character> stack = new Stack<>();
        for (char c : line.toCharArray()) {
            if ('(' == c) {
                stack.push(c);
            } else if (')' == c) {
                stack.pop();
            }
        }
        return stack.isEmpty();
    }
}

Related

1. normalizeAbsolutePath(String curDir)
2. removeBackets(String cont)
3. removeDotSegments(String relativePath)
4. removeParenthesis(String text)
5. resolveOneLineExpression(String line, String space, List target)
6. split(final String str)
7. split(String string, String token)