| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| package org.apache.tika.parser.iwork; |
| |
| import java.util.Locale; |
| |
| /** |
| * Utility class to allow for conversion from an integer to Roman numerals |
| * or alpha-numeric symbols in line with Pages auto numbering formats. |
| */ |
| class AutoPageNumberUtils { |
| |
| private static final String[] ALPHABET = |
| {"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", |
| "R", "S", "T", "U", "V", "W", "X", "Y", "Z"}; |
| |
| private static final int MAX = 26; |
| |
| public static String asAlphaNumeric(int i) { |
| StringBuffer sbuff = new StringBuffer(); |
| int index = i % MAX; |
| int ratio = i / MAX; |
| |
| if (index == 0) { |
| ratio--; |
| index = MAX; |
| } |
| |
| for (int j = 0; j <= ratio; j++) { |
| sbuff.append(ALPHABET[index - 1]); |
| } |
| return sbuff.toString(); |
| } |
| |
| public static String asAlphaNumericLower(int i) { |
| return asAlphaNumeric(i).toLowerCase(Locale.ROOT); |
| } |
| |
| /* |
| * Code copied from jena.apache.org. |
| * @see com.hp.hpl.jena.sparql.util.RomanNumeral |
| */ |
| public static String asRomanNumerals(int i) { |
| if (i <= 0) { |
| throw new NumberFormatException("Roman numerals are 1-3999 (" + i + ")"); |
| } |
| if (i > 3999) { |
| throw new NumberFormatException("Roman numerals are 1-3999 (" + i + ")"); |
| } |
| StringBuffer sbuff = new StringBuffer(); |
| |
| i = i2r(sbuff, i, "M", 1000, "CM", 900, "D", 500, "CD", 400); |
| i = i2r(sbuff, i, "C", 100, "XC", 90, "L", 50, "XL", 40); |
| i = i2r(sbuff, i, "X", 10, "IX", 9, "V", 5, "IV", 4); |
| |
| while (i >= 1) { |
| sbuff.append("I"); |
| i -= 1; |
| } |
| return sbuff.toString(); |
| |
| |
| } |
| |
| public static String asRomanNumeralsLower(int i) { |
| return asRomanNumerals(i).toLowerCase(Locale.ROOT); |
| } |
| |
| private static int i2r(StringBuffer sbuff, int i, String tens, int iTens, String nines, |
| int iNines, String fives, int iFives, String fours, int iFours) { |
| while (i >= iTens) { |
| sbuff.append(tens); |
| i -= iTens; |
| } |
| |
| if (i >= iNines) { |
| sbuff.append(nines); |
| i -= iNines; |
| } |
| |
| if (i >= iFives) { |
| sbuff.append(fives); |
| i -= iFives; |
| } |
| if (i >= iFours) { |
| sbuff.append(fours); |
| i -= iFours; |
| } |
| return i; |
| } |
| |
| } |