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// SPDX-License-Identifier: BSD-3-Clause
package org.islandoftex.arara.ruleset
/**
* Implements a directive assembler in order to help build a directive from a
* list of strings.
*
* @author Island of TeX
* @version 5.0
* @since 4.0
*/
class DirectiveAssembler {
// this variable holds a list of
// line numbers indicating which
// lines composed the resulting
// potential directive
private val lineNumbers = mutableListOf<Int>()
// this variable holds the textual
// representation of the directive
private var text: String = ""
/**
* Checks if an append operation is allowed.
* @return A boolean value indicating if an append operation is allowed.
*/
val isAppendAllowed: Boolean
get() = lineNumbers.isNotEmpty()
/**
* Adds a line number to the assembler.
* @param line An integer representing the line number.
*/
fun addLineNumber(line: Int) = lineNumbers.add(line)
/**
* Appends the provided line to the assembler text.
* @param line The provided line.
*/
fun appendLine(line: String) {
text = text + " " + line.trim()
}
/**
* Gets the list of line numbers.
* @return The list of line numbers.
*/
fun getLineNumbers(): List<Int> = lineNumbers
/**
* Gets the text.
* @return The assembler text, properly trimmed.
*/
fun getText(): String = text.trim()
}
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