Java String Tokenize getCommandTokens(String commandString)

Description

get Command Tokens

License

Apache License

Declaration

public static String[] getCommandTokens(String commandString) 

Method Source Code

//package com.java2s;
/**/*from  w  w  w.j a v a 2  s  . c  om*/
 * Sahi - Web Automation and Test Tool
 *
 * Copyright  2006  V Narayan Raman
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.ArrayList;

public class Main {
    public static String[] getCommandTokens(String commandString) {
        boolean escaped = false;
        ArrayList<String> tokens = new ArrayList<String>();
        int length = commandString.length();
        int startIx = 0;
        int endIx = length;
        final char NONE = 'x';
        char startChar = NONE;
        for (int i = 0; i < length; i++) {
            char c = commandString.charAt(i);
            if (c == '\\') {
                escaped = !escaped;
            }
            if (!escaped) {
                if (c == ' ' && startChar == NONE) {
                    endIx = i;
                    if (startIx != endIx) // Happens just after quote
                        tokens.add(commandString.substring(startIx, endIx + 1).trim());
                    startChar = NONE; // reset
                    startIx = i + 1;
                }
                if (c == '"' || c == '\'') {
                    if (startChar == NONE) {
                        startChar = c;
                        startIx = i;
                    } else {
                        if (c == startChar) {
                            endIx = i;
                            tokens.add(commandString.substring(startIx + 1, endIx).trim());
                            startChar = NONE; // reset
                            startIx = i + 1;
                        }
                    }
                }
            }
            if (c != '\\') {
                escaped = false;
            }
        }
        if (startIx < length) {
            tokens.add(commandString.substring(startIx, length).trim());
        }
        return (String[]) tokens.toArray(new String[0]);
    }
}

Related

1. countCommonTokens(String string1, String string2)
2. escapedTokens(String s, char separator)
3. extractTokens(String strStartToken, String strEndToken, String strExpression)
4. extractTokens(String text, String delim)
5. getAllTokens(final String string)
6. getFileName(StringTokenizer s)
7. getNameTokens(final String names)
8. getParamFloat(StringTokenizer s)
9. getParamString(StringTokenizer s)