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• 0.9.5
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• DelimitedError.scala

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net.tixxit.delimited.DelimitedError.scala Maven / Gradle / Ivy

package net.tixxit.delimited

/**
 * An error that happened while parsing a row from a delimted file.
 *
 * @param message  a message describing the error
 * @param rowStart the offset (# of chars), into the file, where the row starts
 * @param pos      the position (chars) in the file where the error occured
 * @param context  the text of the row, up to at least where the error occured
 * @param row      the row (1-based) where the error occured
 * @param col      the column (1-based) where the error occured
 */
case class DelimitedError(
  message: String,
  rowStart: Long,
  pos: Long,
  context: String,
  row: Long,
  col: Long
) extends Exception(message) {

  /**
   * A helpful, nicely rendered, multiline message that is suitable for human
   * consumption when printed to a console with a monospaced font.
   */
  def description: String = {
    val msg = s"Error parsing CSV at row $row, column $col: $message"
    val padLength = col.toInt - 1
    val pointer = (" " * padLength) + "^"

    s"$msg\n\n$context\n$pointer"
  }

  override def toString: String =
    s"DelimitedError($message, rowStart = $rowStart, pos = $pos, context = $context, row = $row, col = $col)"
}