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/**
* Arara, the cool TeX automation tool
* Copyright (c) 2012 -- 2018, Paulo Roberto Massa Cereda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the project's author nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
* WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package com.github.cereda.arara.utils;
import java.util.ArrayList;
import java.util.List;
/**
* Implements a directive assembler in order to help build a directive from a
* list of strings.
* @author Paulo Roberto Massa Cereda
* @version 4.0
* @since 4.0
*/
public class DirectiveAssembler {
// this variable holds a list of
// line numbers indicating which
// lines composed the resulting
// potential directive
private final List<Integer> lineNumbers;
// this variable holds the textual
// representation of the directive
private String text;
/**
* Constructor.
*/
public DirectiveAssembler() {
lineNumbers = new ArrayList<Integer>();
text = "";
}
/**
* Checks if an append operation is allowed.
* @return A boolean value indicating if an append operation is allowed.
*/
public boolean isAppendAllowed() {
return !lineNumbers.isEmpty();
}
/**
* Adds a line number to the assembler.
* @param line An integer representing the line number.
*/
public void addLineNumber(int line) {
lineNumbers.add(line);
}
/**
* Appends the provided line to the assembler text.
* @param line The provided line.
*/
public void appendLine(String line) {
text = text.concat(" ").concat(line.trim());
}
/**
* Gets the list of line numbers.
* @return The list of line numbers.
*/
public List<Integer> getLineNumbers() {
return lineNumbers;
}
/**
* Gets the text.
* @return The assembler text, properly trimmed.
*/
public String getText() {
return text.trim();
}
}
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