1 /* |
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2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 * |
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23 */ |
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24 |
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25 import java.io.*; |
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26 import java.util.*; |
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27 |
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28 public class MacroDefinitions { |
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29 private Vector macros; |
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30 |
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31 public MacroDefinitions() { |
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32 macros = new Vector(); |
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33 } |
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34 |
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35 public void addMacro(String name, String contents) { |
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36 Macro macro = new Macro(); |
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37 macro.name = name; |
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38 macro.contents = contents; |
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39 macros.add(macro); |
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40 } |
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41 |
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42 private boolean lineIsEmpty(String s) { |
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43 for (int i = 0; i < s.length(); i++) { |
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44 if (!Character.isWhitespace(s.charAt(i))) { |
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45 return false; |
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46 } |
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47 } |
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48 return true; |
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49 } |
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50 |
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51 public void readFrom(String fileName, boolean missingOk) |
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52 throws FileNotFoundException, FileFormatException, IOException { |
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53 BufferedReader reader = null; |
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54 try { |
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55 reader = new BufferedReader(new FileReader(fileName)); |
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56 } catch (FileNotFoundException e) { |
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57 if (missingOk) { |
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58 return; |
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59 } else { |
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60 throw(e); |
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61 } |
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62 } |
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63 String line; |
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64 do { |
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65 line = reader.readLine(); |
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66 if (line != null) { |
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67 // This had to be rewritten (compare to Database.java) |
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68 // because the Solaris platform file has been |
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69 // repurposed and now contains "macros" with spaces in |
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70 // them. |
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71 |
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72 if ((!line.startsWith("//")) && |
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73 (!lineIsEmpty(line))) { |
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74 int nameBegin = -1; |
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75 int nameEnd = -1; |
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76 boolean gotEquals = false; |
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77 int contentsBegin = -1; |
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78 int contentsEnd = -1; |
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79 |
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80 int i = 0; |
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81 // Scan forward for beginning of name |
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82 while (i < line.length()) { |
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83 if (!Character.isWhitespace(line.charAt(i))) { |
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84 break; |
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85 } |
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86 i++; |
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87 } |
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88 nameBegin = i; |
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89 |
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90 // Scan forward for end of name |
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91 while (i < line.length()) { |
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92 if (Character.isWhitespace(line.charAt(i))) { |
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93 break; |
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94 } |
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95 i++; |
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96 } |
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97 nameEnd = i; |
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98 |
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99 // Scan forward for equals sign |
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100 while (i < line.length()) { |
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101 if (line.charAt(i) == '=') { |
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102 gotEquals = true; |
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103 break; |
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104 } |
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105 i++; |
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106 } |
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107 |
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108 // Scan forward for start of contents |
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109 i++; |
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110 while (i < line.length()) { |
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111 if (!Character.isWhitespace(line.charAt(i))) { |
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112 break; |
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113 } |
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114 i++; |
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115 } |
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116 contentsBegin = i; |
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117 |
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118 // Scan *backward* for end of contents |
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119 i = line.length() - 1; |
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120 while (i >= 0) { |
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121 if (!Character.isWhitespace(line.charAt(i))) { |
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122 break; |
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123 } |
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124 } |
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125 contentsEnd = i+1; |
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126 |
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127 // Now do consistency check |
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128 if (!((nameBegin < nameEnd) && |
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129 (nameEnd < contentsBegin) && |
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130 (contentsBegin < contentsEnd) && |
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131 (gotEquals == true))) { |
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132 throw new FileFormatException( |
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133 "Expected \"macroname = value\", " + |
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134 "but found: " + line |
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135 ); |
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136 } |
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137 |
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138 String name = line.substring(nameBegin, nameEnd); |
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139 String contents = line.substring(contentsBegin, |
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140 contentsEnd); |
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141 addMacro(name, contents); |
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142 } |
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143 } |
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144 } while (line != null); |
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145 reader.close(); |
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146 } |
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147 |
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148 /** This returns an Iterator of Macros. You should not mutate the |
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149 returned Macro objects or use the Iterator to remove |
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150 macros. */ |
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151 public Iterator getMacros() { |
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152 return macros.iterator(); |
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153 } |
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154 } |
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