1 | /* |
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2 | * StringFunctions.java |
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3 | * |
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4 | * Copyright (C) 2003-2005 Peter Graves |
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5 | * Copyright (C) 2010 Ville Voutilainen |
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6 | * $Id: StringFunctions.java 12513 2010-03-02 22:35:36Z ehuelsmann $ |
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7 | * |
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8 | * This program is free software; you can redistribute it and/or |
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9 | * modify it under the terms of the GNU General Public License |
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10 | * as published by the Free Software Foundation; either version 2 |
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11 | * of the License, or (at your option) any later version. |
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12 | * |
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13 | * This program is distributed in the hope that it will be useful, |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | * GNU General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU General Public License |
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19 | * along with this program; if not, write to the Free Software |
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20 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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21 | * |
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22 | * As a special exception, the copyright holders of this library give you |
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23 | * permission to link this library with independent modules to produce an |
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24 | * executable, regardless of the license terms of these independent |
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25 | * modules, and to copy and distribute the resulting executable under |
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26 | * terms of your choice, provided that you also meet, for each linked |
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27 | * independent module, the terms and conditions of the license of that |
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28 | * module. An independent module is a module which is not derived from |
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29 | * or based on this library. If you modify this library, you may extend |
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30 | * this exception to your version of the library, but you are not |
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31 | * obligated to do so. If you do not wish to do so, delete this |
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32 | * exception statement from your version. |
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33 | */ |
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34 | |
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35 | package org.armedbear.lisp; |
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36 | |
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37 | import static org.armedbear.lisp.Lisp.*; |
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38 | import java.util.Arrays; |
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39 | public final class StringFunctions { |
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40 | final static class StringIndicesAndChars { |
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41 | public AbstractString string1; |
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42 | public boolean convertCase = false; |
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43 | public char[] array1; |
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44 | public char[] array2; |
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45 | public int start1 = 0; |
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46 | public int end1 = 0; |
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47 | public int start2 = 0; |
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48 | public int end2 = 0; |
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49 | }; |
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50 | private final static void |
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51 | checkParams(StringIndicesAndChars indicesAndChars) { |
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52 | if (indicesAndChars.start1 < 0 |
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53 | || indicesAndChars.start1 > indicesAndChars.array1.length) |
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54 | error(new TypeError("Invalid start position " |
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55 | + indicesAndChars.start1 + ".")); |
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56 | if (indicesAndChars.end1 < 0 |
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57 | || indicesAndChars.end1 > indicesAndChars.array1.length) |
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58 | error(new TypeError("Invalid end position " |
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59 | + indicesAndChars.end1 + ".")); |
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60 | |
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61 | if (indicesAndChars.start1 > indicesAndChars.end1) |
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62 | error(new TypeError("Start (" |
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63 | + indicesAndChars.start1 |
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64 | + ") is greater than end (" |
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65 | + indicesAndChars.end1 + ").")); |
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66 | if (indicesAndChars.array2 != null) { |
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67 | if (indicesAndChars.start2 < 0 |
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68 | || indicesAndChars.start2 > indicesAndChars.array2.length) |
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69 | error(new TypeError("Invalid start2 position " |
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70 | + indicesAndChars.start2 + ".")); |
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71 | if (indicesAndChars.end2 < 0 |
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72 | || indicesAndChars.end2 > indicesAndChars.array2.length) |
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73 | error(new TypeError("Invalid end2 position " |
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74 | + indicesAndChars.end2 + ".")); |
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75 | if (indicesAndChars.start2 > indicesAndChars.end2) |
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76 | error(new TypeError("Start2 (" |
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77 | + indicesAndChars.start2 |
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78 | + ") is greater than end2 (" |
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79 | + indicesAndChars.end2 + ").")); |
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80 | } |
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81 | |
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82 | } |
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83 | |
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84 | private final static char upcaseIfNeeded(char c, boolean convert) { |
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85 | return convert ? LispCharacter.toUpperCase(c) : c; |
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86 | } |
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87 | |
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88 | final static StringIndicesAndChars |
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89 | stringIndicesAndChars(LispObject... params) { |
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90 | StringIndicesAndChars retVal = new StringIndicesAndChars(); |
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91 | retVal.string1 = checkString(params[0].STRING()); |
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92 | retVal.array1 = retVal.string1.getStringChars(); |
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93 | retVal.end1 = retVal.array1.length; |
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94 | if (params.length == 3) { |
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95 | if (params[1] != NIL) { |
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96 | retVal.start1 = Fixnum.getValue(params[1]); |
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97 | } |
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98 | if (params[2] != NIL) { |
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99 | retVal.end1 = Fixnum.getValue(params[2]); |
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100 | } |
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101 | } else { |
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102 | retVal.array2 = params[1].STRING().getStringChars(); |
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103 | retVal.end2 = retVal.array2.length; |
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104 | if (params.length > 2) { |
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105 | if (params[2] != NIL) { |
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106 | retVal.start1 = Fixnum.getValue(params[2]); |
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107 | } |
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108 | if (params[3] != NIL) { |
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109 | retVal.end1 = Fixnum.getValue(params[3]); |
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110 | } |
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111 | if (params[4] != NIL) { |
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112 | retVal.start2 = Fixnum.getValue(params[4]); |
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113 | } |
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114 | if (params[5] != NIL) { |
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115 | retVal.end2 = Fixnum.getValue(params[5]); |
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116 | } |
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117 | } |
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118 | } |
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119 | checkParams(retVal); |
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120 | return retVal; |
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121 | } |
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122 | |
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123 | // ### %%string= |
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124 | // Case sensitive. |
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125 | private static final Primitive __STRING_EQUAL = new pf___string_equal(); |
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126 | private static final class pf___string_equal extends Primitive { |
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127 | pf___string_equal() { |
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128 | super("%%string=", PACKAGE_SYS, false); |
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129 | } |
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130 | |
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131 | @Override |
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132 | public LispObject execute(LispObject string1, LispObject string2) |
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133 | |
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134 | { |
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135 | StringIndicesAndChars chars = |
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136 | stringIndicesAndChars(string1, string2); |
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137 | return Arrays.equals(chars.array1, chars.array2) ? |
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138 | T : NIL; |
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139 | }; |
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140 | } |
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141 | |
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142 | // ### %string= |
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143 | // Case sensitive. |
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144 | private static final Primitive _STRING_EQUAL = new pf__string_equal(); |
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145 | private static final class pf__string_equal extends Primitive { |
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146 | pf__string_equal() { |
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147 | super("%string=", PACKAGE_SYS, false); |
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148 | } |
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149 | |
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150 | @Override |
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151 | public LispObject execute(LispObject string1, LispObject string2, |
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152 | LispObject start1, LispObject end1, |
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153 | LispObject start2, LispObject end2) |
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154 | |
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155 | { |
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156 | return |
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157 | (_STRING_NOT_EQUAL.execute(string1, string2, |
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158 | start1, end1, |
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159 | start2, end2) |
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160 | == NIL) ? T : NIL; |
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161 | } |
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162 | }; |
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163 | |
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164 | |
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165 | static final int notEqual(StringIndicesAndChars indicesAndChars) { |
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166 | int i = indicesAndChars.start1; |
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167 | int j = indicesAndChars.start2; |
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168 | while (true) { |
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169 | if (i == indicesAndChars.end1) { |
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170 | // Reached end of string1. |
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171 | if (j == indicesAndChars.end2) |
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172 | return -1; // Strings are identical. |
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173 | return i; |
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174 | } |
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175 | if (j == indicesAndChars.end2) { |
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176 | // Reached end of string2 before end of string1. |
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177 | return i; |
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178 | } |
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179 | if (upcaseIfNeeded(indicesAndChars.array1[i], |
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180 | indicesAndChars.convertCase) |
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181 | != upcaseIfNeeded(indicesAndChars.array2[j], |
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182 | indicesAndChars.convertCase)) |
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183 | return i; |
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184 | ++i; |
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185 | ++j; |
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186 | } |
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187 | } |
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188 | // ### %string/= |
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189 | // Case sensitive. |
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190 | static final Primitive _STRING_NOT_EQUAL = new pf__string_not_equal(); |
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191 | private static final class pf__string_not_equal extends Primitive { |
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192 | pf__string_not_equal() { |
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193 | super("%string/=", PACKAGE_SYS, true); |
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194 | } |
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195 | |
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196 | @Override |
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197 | public LispObject execute(LispObject string1, LispObject string2, |
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198 | LispObject start1, LispObject end1, |
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199 | LispObject start2, LispObject end2) { |
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200 | StringIndicesAndChars indicesAndChars = |
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201 | stringIndicesAndChars(string1, string2, start1, end1, |
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202 | start2, end2); |
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203 | int tmp = notEqual(indicesAndChars); |
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204 | return (tmp >= 0) ? Fixnum.getInstance(tmp) : NIL; |
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205 | } |
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206 | }; |
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207 | |
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208 | // ### %string-equal |
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209 | // Case insensitive. |
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210 | private static final Primitive _STRING_EQUAL_IGNORE_CASE = new pf__string_equal_ignore_case(); |
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211 | private static final class pf__string_equal_ignore_case extends Primitive { |
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212 | pf__string_equal_ignore_case() { |
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213 | super("%string-equal", PACKAGE_SYS, true); |
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214 | } |
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215 | |
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216 | @Override |
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217 | public LispObject execute(LispObject string1, LispObject string2, |
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218 | LispObject start1, LispObject end1, |
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219 | LispObject start2, LispObject end2) |
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220 | |
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221 | { |
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222 | return (_STRING_NOT_EQUAL_IGNORE_CASE.execute(string1, string2, |
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223 | start1, end1, |
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224 | start2, end2) |
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225 | == NIL) ? T : NIL; |
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226 | } |
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227 | }; |
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228 | |
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229 | // ### %string-not-equal |
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230 | // Case insensitive. |
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231 | static final Primitive _STRING_NOT_EQUAL_IGNORE_CASE = new pf__string_not_equal_ignore_case(); |
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232 | private static final class pf__string_not_equal_ignore_case extends Primitive { |
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233 | pf__string_not_equal_ignore_case() { |
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234 | super("%string-not-equal", PACKAGE_SYS, true); |
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235 | } |
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236 | |
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237 | @Override |
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238 | public LispObject execute(LispObject string1, LispObject string2, |
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239 | LispObject start1, LispObject end1, |
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240 | LispObject start2, LispObject end2) { |
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241 | StringIndicesAndChars indicesAndChars = |
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242 | stringIndicesAndChars(string1, string2, start1, end1, |
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243 | start2, end2); |
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244 | indicesAndChars.convertCase = true; |
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245 | int tmp = notEqual(indicesAndChars); |
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246 | return (tmp >= 0) ? Fixnum.getInstance(tmp) : NIL; |
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247 | } |
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248 | }; |
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249 | |
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250 | static final int lessThan(StringIndicesAndChars indicesAndChars) { |
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251 | int i = indicesAndChars.start1; |
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252 | int j = indicesAndChars.start2; |
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253 | while (true) { |
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254 | if (i == indicesAndChars.end1) { |
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255 | // Reached end of string1. |
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256 | if (j == indicesAndChars.end2) |
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257 | return -1; // Strings are identical. |
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258 | return i; |
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259 | } |
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260 | if (j == indicesAndChars.end2) { |
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261 | // Reached end of string2. |
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262 | return -1; |
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263 | } |
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264 | char c1 = upcaseIfNeeded(indicesAndChars.array1[i], |
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265 | indicesAndChars.convertCase); |
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266 | char c2 = upcaseIfNeeded(indicesAndChars.array2[j], |
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267 | indicesAndChars.convertCase); |
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268 | if (c1 == c2) { |
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269 | ++i; |
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270 | ++j; |
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271 | continue; |
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272 | } |
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273 | if (c1 < c2) |
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274 | return (i); |
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275 | // c1 > c2 |
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276 | return -1; |
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277 | } |
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278 | } |
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279 | |
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280 | // ### %string< |
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281 | // Case sensitive. |
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282 | private static final Primitive _STRING_LESS_THAN = new pf__string_less_than(); |
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283 | private static final class pf__string_less_than extends Primitive { |
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284 | pf__string_less_than() { |
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285 | super("%string<", PACKAGE_SYS, true); |
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286 | } |
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287 | |
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288 | @Override |
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289 | public LispObject execute(LispObject string1, LispObject string2, |
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290 | LispObject start1, LispObject end1, |
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291 | LispObject start2, LispObject end2) { |
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292 | StringIndicesAndChars indicesAndChars = |
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293 | stringIndicesAndChars(string1, string2, |
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294 | start1, end1, start2, end2); |
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295 | int retVal = lessThan(indicesAndChars); |
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296 | return (retVal >= 0) ? Fixnum.getInstance(retVal) : NIL; |
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297 | } |
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298 | }; |
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299 | |
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300 | static LispObject |
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301 | swapReturnValue(int original, |
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302 | StringIndicesAndChars indicesAndChars) { |
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303 | if (original < 0) { |
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304 | return NIL; |
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305 | } |
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306 | int delta = original - indicesAndChars.start1; |
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307 | int retVal = indicesAndChars.start2 + delta; |
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308 | return Fixnum.getInstance(retVal); |
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309 | } |
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310 | |
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311 | // ### %string> |
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312 | // Case sensitive. |
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313 | private static final Primitive _STRING_GREATER_THAN = new pf__string_greater_than(); |
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314 | private static final class pf__string_greater_than extends Primitive { |
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315 | pf__string_greater_than() { |
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316 | super("%string>", PACKAGE_SYS, true); |
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317 | } |
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318 | |
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319 | @Override |
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320 | public LispObject execute(LispObject string1, LispObject string2, |
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321 | LispObject start1, LispObject end1, |
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322 | LispObject start2, LispObject end2) { |
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323 | // note the swap of the strings and lengths here.. |
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324 | StringIndicesAndChars indicesAndChars = |
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325 | stringIndicesAndChars(string2, string1, |
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326 | start2, end2, |
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327 | start1, end1); |
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328 | int tmp = lessThan(indicesAndChars); |
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329 | return swapReturnValue(tmp, indicesAndChars); |
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330 | } |
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331 | }; |
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332 | |
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333 | static final int lessThanOrEqual(StringIndicesAndChars indicesAndChars) { |
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334 | int i = indicesAndChars.start1; |
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335 | int j = indicesAndChars.start2; |
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336 | while (true) { |
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337 | if (i == indicesAndChars.end1) { |
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338 | // Reached end of string1. |
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339 | return i; |
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340 | } |
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341 | if (j == indicesAndChars.end2) { |
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342 | // Reached end of string2. |
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343 | return -1; |
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344 | } |
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345 | char c1 = upcaseIfNeeded(indicesAndChars.array1[i], |
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346 | indicesAndChars.convertCase); |
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347 | char c2 = upcaseIfNeeded(indicesAndChars.array2[j], |
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348 | indicesAndChars.convertCase); |
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349 | if (c1 == c2) { |
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350 | ++i; |
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351 | ++j; |
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352 | continue; |
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353 | } |
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354 | if (c1 > c2) |
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355 | return -1; |
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356 | // c1 < c2 |
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357 | return (i); |
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358 | } |
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359 | } |
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360 | // ### %string<= |
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361 | // Case sensitive. |
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362 | private static final Primitive _STRING_LE = new pf__string_le(); |
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363 | private static final class pf__string_le extends Primitive { |
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364 | pf__string_le() { |
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365 | super("%string<=", PACKAGE_SYS, true); |
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366 | } |
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367 | |
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368 | @Override |
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369 | public LispObject execute(LispObject string1, LispObject string2, |
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370 | LispObject start1, LispObject end1, |
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371 | LispObject start2, LispObject end2) { |
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372 | |
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373 | StringIndicesAndChars indicesAndChars = |
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374 | stringIndicesAndChars(string1, string2, |
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375 | start1, end1, start2, end2); |
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376 | int retVal = lessThanOrEqual(indicesAndChars); |
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377 | return (retVal >= 0) ? Fixnum.getInstance(retVal) : NIL; |
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378 | } |
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379 | }; |
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380 | |
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381 | // ### %string>= |
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382 | // Case sensitive. |
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383 | private static final Primitive _STRING_GE = new pf__string_ge(); |
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384 | private static final class pf__string_ge extends Primitive { |
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385 | pf__string_ge() { |
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386 | super("%string>=", PACKAGE_SYS, true); |
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387 | } |
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388 | |
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389 | @Override |
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390 | public LispObject execute(LispObject string1, LispObject string2, |
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391 | LispObject start1, LispObject end1, |
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392 | LispObject start2, LispObject end2) { |
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393 | // note the swap of the strings and lengths here.. |
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394 | StringIndicesAndChars indicesAndChars = |
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395 | stringIndicesAndChars(string2, string1, |
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396 | start2, end2, |
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397 | start1, end1); |
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398 | int tmp = lessThanOrEqual(indicesAndChars); |
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399 | return swapReturnValue(tmp, indicesAndChars); |
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400 | } |
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401 | }; |
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402 | |
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403 | |
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404 | // ### %string-lessp |
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405 | // Case insensitive. |
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406 | private static final Primitive _STRING_LESSP = new pf__string_lessp(); |
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407 | private static final class pf__string_lessp extends Primitive { |
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408 | pf__string_lessp() { |
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409 | super("%string-lessp", PACKAGE_SYS, true); |
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410 | } |
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411 | |
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412 | @Override |
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413 | public LispObject execute(LispObject string1, LispObject string2, |
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414 | LispObject start1, LispObject end1, |
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415 | LispObject start2, LispObject end2) { |
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416 | StringIndicesAndChars indicesAndChars = |
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417 | stringIndicesAndChars(string1, string2, |
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418 | start1, end1, start2, end2); |
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419 | indicesAndChars.convertCase = true; |
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420 | int retVal = lessThan(indicesAndChars); |
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421 | return (retVal >= 0) ? Fixnum.getInstance(retVal) : NIL; |
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422 | } |
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423 | }; |
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424 | |
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425 | // ### %string-greaterp |
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426 | // Case insensitive. |
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427 | private static final Primitive _STRING_GREATERP = new pf__string_greaterp(); |
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428 | private static final class pf__string_greaterp extends Primitive { |
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429 | pf__string_greaterp() { |
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430 | super("%string-greaterp", PACKAGE_SYS, true); |
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431 | } |
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432 | |
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433 | @Override |
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434 | public LispObject execute(LispObject string1, LispObject string2, |
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435 | LispObject start1, LispObject end1, |
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436 | LispObject start2, LispObject end2) { |
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437 | // note the swap of the strings and lengths here.. |
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438 | StringIndicesAndChars indicesAndChars = |
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439 | stringIndicesAndChars(string2, string1, |
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440 | start2, end2, |
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441 | start1, end1); |
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442 | indicesAndChars.convertCase = true; |
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443 | int tmp = lessThan(indicesAndChars); |
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444 | return swapReturnValue(tmp, indicesAndChars); |
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445 | } |
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446 | }; |
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447 | // ### %string-not-lessp |
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448 | // Case insensitive. |
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449 | private static final Primitive _STRING_NOT_LESSP = new pf__string_not_lessp(); |
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450 | private static final class pf__string_not_lessp extends Primitive { |
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451 | pf__string_not_lessp() { |
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452 | super("%string-not-lessp", PACKAGE_SYS, true); |
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453 | } |
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454 | |
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455 | @Override |
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456 | public LispObject execute(LispObject string1, LispObject string2, |
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457 | LispObject start1, LispObject end1, |
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458 | LispObject start2, LispObject end2) { |
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459 | // note the swap of the strings and lengths here.. |
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460 | StringIndicesAndChars indicesAndChars = |
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461 | stringIndicesAndChars(string2, string1, |
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462 | start2, end2, |
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463 | start1, end1); |
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464 | indicesAndChars.convertCase = true; |
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465 | int tmp = lessThanOrEqual(indicesAndChars); |
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466 | return swapReturnValue(tmp, indicesAndChars); |
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467 | } |
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468 | }; |
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469 | |
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470 | // ### %string-not-greaterp |
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471 | // Case insensitive. |
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472 | private static final Primitive _STRING_NOT_GREATERP = new pf__string_not_greaterp(); |
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473 | private static final class pf__string_not_greaterp extends Primitive { |
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474 | pf__string_not_greaterp() { |
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475 | super("%string-not-greaterp", PACKAGE_SYS, true); |
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476 | } |
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477 | |
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478 | @Override |
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479 | public LispObject execute(LispObject string1, LispObject string2, |
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480 | LispObject start1, LispObject end1, |
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481 | LispObject start2, LispObject end2) { |
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482 | StringIndicesAndChars indicesAndChars = |
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483 | stringIndicesAndChars(string1, string2, |
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484 | start1, end1, |
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485 | start2, end2); |
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486 | indicesAndChars.convertCase = true; |
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487 | int tmp = lessThanOrEqual(indicesAndChars); |
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488 | return (tmp >= 0) ? Fixnum.getInstance(tmp) : NIL; |
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489 | } |
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490 | }; |
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491 | |
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492 | // ### %string-upcase |
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493 | private static final Primitive _STRING_UPCASE = new pf__string_upcase(); |
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494 | private static final class pf__string_upcase extends Primitive { |
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495 | pf__string_upcase() { |
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496 | super("%string-upcase", PACKAGE_SYS, true); |
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497 | } |
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498 | |
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499 | @Override |
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500 | public LispObject execute(LispObject string, LispObject start, |
---|
501 | LispObject end) |
---|
502 | |
---|
503 | { |
---|
504 | StringIndicesAndChars indicesAndChars = |
---|
505 | stringIndicesAndChars(string, start, end); |
---|
506 | char[] array = new char[indicesAndChars.array1.length]; |
---|
507 | System.arraycopy(indicesAndChars.array1, 0, |
---|
508 | array, 0, |
---|
509 | indicesAndChars.start1); |
---|
510 | for (int i = indicesAndChars.start1; i < indicesAndChars.end1; i++) |
---|
511 | array[i] = LispCharacter.toUpperCase(indicesAndChars.array1[i]); |
---|
512 | System.arraycopy(indicesAndChars.array1, indicesAndChars.end1, |
---|
513 | array, indicesAndChars.end1, |
---|
514 | indicesAndChars.array1.length |
---|
515 | - indicesAndChars.end1); |
---|
516 | return new SimpleString(array); |
---|
517 | } |
---|
518 | }; |
---|
519 | |
---|
520 | // ### %string-downcase |
---|
521 | private static final Primitive _STRING_DOWNCASE = new pf__string_downcase(); |
---|
522 | private static final class pf__string_downcase extends Primitive { |
---|
523 | pf__string_downcase() { |
---|
524 | super("%string-downcase", PACKAGE_SYS, true); |
---|
525 | } |
---|
526 | |
---|
527 | @Override |
---|
528 | public LispObject execute(LispObject string, LispObject start, |
---|
529 | LispObject end) { |
---|
530 | StringIndicesAndChars indicesAndChars = |
---|
531 | stringIndicesAndChars(string, start, end); |
---|
532 | char[] array = new char[indicesAndChars.array1.length]; |
---|
533 | System.arraycopy(indicesAndChars.array1, 0, |
---|
534 | array, 0, |
---|
535 | indicesAndChars.start1); |
---|
536 | for (int i = indicesAndChars.start1; i < indicesAndChars.end1; i++) |
---|
537 | array[i] = LispCharacter.toLowerCase(indicesAndChars.array1[i]); |
---|
538 | System.arraycopy(indicesAndChars.array1, indicesAndChars.end1, |
---|
539 | array, indicesAndChars.end1, |
---|
540 | indicesAndChars.array1.length |
---|
541 | - indicesAndChars.end1); |
---|
542 | return new SimpleString(array); |
---|
543 | } |
---|
544 | }; |
---|
545 | |
---|
546 | // ### %string-capitalize |
---|
547 | private static final Primitive _STRING_CAPITALIZE = new pf__string_capitalize(); |
---|
548 | private static final class pf__string_capitalize extends Primitive { |
---|
549 | pf__string_capitalize() { |
---|
550 | super("%string-capitalize", PACKAGE_SYS, true); |
---|
551 | } |
---|
552 | |
---|
553 | @Override |
---|
554 | public LispObject execute(LispObject string, LispObject start, |
---|
555 | LispObject end) |
---|
556 | |
---|
557 | { |
---|
558 | StringIndicesAndChars indicesAndChars = |
---|
559 | stringIndicesAndChars(string, start, end); |
---|
560 | char[] array = new char[indicesAndChars.array1.length]; |
---|
561 | boolean lastCharWasAlphanumeric = false; |
---|
562 | System.arraycopy(indicesAndChars.array1, 0, |
---|
563 | array, 0, |
---|
564 | indicesAndChars.start1); |
---|
565 | for (int i = indicesAndChars.start1; |
---|
566 | i < indicesAndChars.end1; i++) { |
---|
567 | char c = indicesAndChars.array1[i]; |
---|
568 | if (Character.isLowerCase(c)) { |
---|
569 | array[i] = lastCharWasAlphanumeric ? |
---|
570 | c : LispCharacter.toUpperCase(c); |
---|
571 | lastCharWasAlphanumeric = true; |
---|
572 | } else if (Character.isUpperCase(c)) { |
---|
573 | array[i] = lastCharWasAlphanumeric ? |
---|
574 | LispCharacter.toLowerCase(c) : c; |
---|
575 | lastCharWasAlphanumeric = true; |
---|
576 | } else { |
---|
577 | array[i] = c; |
---|
578 | lastCharWasAlphanumeric = Character.isDigit(c); |
---|
579 | } |
---|
580 | } |
---|
581 | System.arraycopy(indicesAndChars.array1, indicesAndChars.end1, |
---|
582 | array, indicesAndChars.end1, |
---|
583 | indicesAndChars.array1.length |
---|
584 | - indicesAndChars.end1); |
---|
585 | return new SimpleString(array); |
---|
586 | } |
---|
587 | }; |
---|
588 | |
---|
589 | // ### %nstring-upcase |
---|
590 | private static final Primitive _NSTRING_UPCASE = new pf__nstring_upcase(); |
---|
591 | private static final class pf__nstring_upcase extends Primitive { |
---|
592 | pf__nstring_upcase() { |
---|
593 | super("%nstring-upcase", PACKAGE_SYS, true); |
---|
594 | } |
---|
595 | |
---|
596 | @Override |
---|
597 | public LispObject execute(LispObject string, LispObject start, |
---|
598 | LispObject end) |
---|
599 | |
---|
600 | { |
---|
601 | StringIndicesAndChars indicesAndChars = |
---|
602 | stringIndicesAndChars(string, start, end); |
---|
603 | AbstractString retString = indicesAndChars.string1; |
---|
604 | for (int i = indicesAndChars.start1; i < indicesAndChars.end1; i++) |
---|
605 | retString.setCharAt(i, |
---|
606 | LispCharacter. |
---|
607 | toUpperCase( |
---|
608 | retString.charAt(i))); |
---|
609 | return retString; |
---|
610 | } |
---|
611 | }; |
---|
612 | |
---|
613 | // ### %nstring-downcase |
---|
614 | private static final Primitive _NSTRING_DOWNCASE = new pf__nstring_downcase(); |
---|
615 | private static final class pf__nstring_downcase extends Primitive { |
---|
616 | pf__nstring_downcase() { |
---|
617 | super("%nstring-downcase", PACKAGE_SYS, true); |
---|
618 | } |
---|
619 | |
---|
620 | @Override |
---|
621 | public LispObject execute(LispObject string, LispObject start, |
---|
622 | LispObject end) |
---|
623 | |
---|
624 | { |
---|
625 | StringIndicesAndChars indicesAndChars = |
---|
626 | stringIndicesAndChars(string, start, end); |
---|
627 | AbstractString retString = indicesAndChars.string1; |
---|
628 | for (int i = indicesAndChars.start1; i < indicesAndChars.end1; i++) |
---|
629 | retString.setCharAt(i, |
---|
630 | LispCharacter. |
---|
631 | toLowerCase(retString.charAt(i))); |
---|
632 | return retString; |
---|
633 | } |
---|
634 | }; |
---|
635 | |
---|
636 | // ### %nstring-capitalize |
---|
637 | private static final Primitive _NSTRING_CAPITALIZE = new pf__nstring_capitalize(); |
---|
638 | private static final class pf__nstring_capitalize extends Primitive { |
---|
639 | pf__nstring_capitalize() { |
---|
640 | super("%nstring-capitalize", PACKAGE_SYS, true); |
---|
641 | } |
---|
642 | |
---|
643 | @Override |
---|
644 | public LispObject execute(LispObject string, LispObject start, |
---|
645 | LispObject end) |
---|
646 | |
---|
647 | { |
---|
648 | StringIndicesAndChars indicesAndChars = |
---|
649 | stringIndicesAndChars(string, start, end); |
---|
650 | boolean lastCharWasAlphanumeric = false; |
---|
651 | AbstractString retString = indicesAndChars.string1; |
---|
652 | for (int i = indicesAndChars.start1; |
---|
653 | i < indicesAndChars.end1; i++) { |
---|
654 | char c = retString.charAt(i); |
---|
655 | if (Character.isLowerCase(c)) { |
---|
656 | if (!lastCharWasAlphanumeric) |
---|
657 | retString.setCharAt(i, |
---|
658 | LispCharacter.toUpperCase(c)); |
---|
659 | lastCharWasAlphanumeric = true; |
---|
660 | } else if (Character.isUpperCase(c)) { |
---|
661 | if (lastCharWasAlphanumeric) |
---|
662 | retString.setCharAt(i, |
---|
663 | LispCharacter.toLowerCase(c)); |
---|
664 | lastCharWasAlphanumeric = true; |
---|
665 | } else |
---|
666 | lastCharWasAlphanumeric = Character.isDigit(c); |
---|
667 | } |
---|
668 | return retString; |
---|
669 | } |
---|
670 | }; |
---|
671 | |
---|
672 | // ### stringp |
---|
673 | public static final Primitive STRINGP = new pf_stringp(); |
---|
674 | private static final class pf_stringp extends Primitive { |
---|
675 | pf_stringp() { |
---|
676 | super("stringp", "object"); |
---|
677 | } |
---|
678 | |
---|
679 | @Override |
---|
680 | public LispObject execute(LispObject arg) { |
---|
681 | return arg.STRINGP(); |
---|
682 | } |
---|
683 | }; |
---|
684 | |
---|
685 | // ### simple-string-p |
---|
686 | public static final Primitive SIMPLE_STRING_P = new pf_simple_string_p(); |
---|
687 | private static final class pf_simple_string_p extends Primitive { |
---|
688 | pf_simple_string_p() { |
---|
689 | super("simple-string-p", "object"); |
---|
690 | } |
---|
691 | |
---|
692 | @Override |
---|
693 | public LispObject execute(LispObject arg) { |
---|
694 | return arg.SIMPLE_STRING_P(); |
---|
695 | } |
---|
696 | }; |
---|
697 | |
---|
698 | // ### %make-string |
---|
699 | // %make-string size initial-element element-type => string |
---|
700 | // Returns a simple string. |
---|
701 | private static final Primitive _MAKE_STRING = new pf__make_string(); |
---|
702 | private static final class pf__make_string extends Primitive { |
---|
703 | pf__make_string() { |
---|
704 | super("%make-string", PACKAGE_SYS, false); |
---|
705 | } |
---|
706 | |
---|
707 | @Override |
---|
708 | public LispObject execute(LispObject size, LispObject initialElement, |
---|
709 | LispObject elementType) |
---|
710 | |
---|
711 | { |
---|
712 | final int n = Fixnum.getValue(size); |
---|
713 | if (n < 0 || n >= ARRAY_DIMENSION_MAX) { |
---|
714 | StringBuilder sb = new StringBuilder(); |
---|
715 | sb.append("The size specified for this string ("); |
---|
716 | sb.append(n); |
---|
717 | sb.append(')'); |
---|
718 | if (n >= ARRAY_DIMENSION_MAX) { |
---|
719 | sb.append(" is >= ARRAY-DIMENSION-LIMIT ("); |
---|
720 | sb.append(ARRAY_DIMENSION_MAX); |
---|
721 | sb.append(")."); |
---|
722 | } else |
---|
723 | sb.append(" is negative."); |
---|
724 | return error(new LispError(sb.toString())); |
---|
725 | } |
---|
726 | // Ignore elementType. |
---|
727 | SimpleString string = new SimpleString(n); |
---|
728 | if (initialElement != NIL) { |
---|
729 | // Initial element was specified. |
---|
730 | char c = checkCharacter(initialElement).getValue(); |
---|
731 | string.fill(c); |
---|
732 | } |
---|
733 | return string; |
---|
734 | } |
---|
735 | }; |
---|
736 | |
---|
737 | // ### char |
---|
738 | private static final Primitive CHAR = new pf_char(); |
---|
739 | private static final class pf_char extends Primitive { |
---|
740 | pf_char() { |
---|
741 | super(Symbol.CHAR, "string index"); |
---|
742 | } |
---|
743 | |
---|
744 | @Override |
---|
745 | public LispObject execute(LispObject first, LispObject second) |
---|
746 | |
---|
747 | { |
---|
748 | return first.CHAR(Fixnum.getValue(second)); |
---|
749 | } |
---|
750 | }; |
---|
751 | |
---|
752 | // ### schar |
---|
753 | private static final Primitive SCHAR = new pf_schar(); |
---|
754 | private static final class pf_schar extends Primitive { |
---|
755 | pf_schar() { |
---|
756 | super(Symbol.SCHAR, "string index"); |
---|
757 | } |
---|
758 | |
---|
759 | @Override |
---|
760 | public LispObject execute(LispObject first, LispObject second) |
---|
761 | |
---|
762 | { |
---|
763 | return first.SCHAR(Fixnum.getValue(second)); |
---|
764 | } |
---|
765 | }; |
---|
766 | |
---|
767 | // ### set-char |
---|
768 | private static final Primitive SET_CHAR = new pf_set_char(); |
---|
769 | private static final class pf_set_char extends Primitive { |
---|
770 | pf_set_char() { |
---|
771 | super(Symbol.SET_CHAR, "string index character"); |
---|
772 | } |
---|
773 | |
---|
774 | @Override |
---|
775 | public LispObject execute(LispObject first, LispObject second, |
---|
776 | LispObject third) |
---|
777 | |
---|
778 | { |
---|
779 | checkString(first).setCharAt(Fixnum.getValue(second), |
---|
780 | LispCharacter.getValue(third)); |
---|
781 | return third; |
---|
782 | } |
---|
783 | }; |
---|
784 | |
---|
785 | // ### set-schar |
---|
786 | private static final Primitive SET_SCHAR = new pf_set_schar(); |
---|
787 | private static final class pf_set_schar extends Primitive { |
---|
788 | pf_set_schar() { |
---|
789 | super(Symbol.SET_SCHAR, "string index character"); |
---|
790 | } |
---|
791 | |
---|
792 | @Override |
---|
793 | public LispObject execute(LispObject first, LispObject second, |
---|
794 | LispObject third) |
---|
795 | |
---|
796 | { |
---|
797 | if (first instanceof SimpleString) { |
---|
798 | ((SimpleString)first).setCharAt(Fixnum.getValue(second), |
---|
799 | LispCharacter.getValue(third)); |
---|
800 | return third; |
---|
801 | } |
---|
802 | return type_error(first, Symbol.SIMPLE_STRING); |
---|
803 | } |
---|
804 | }; |
---|
805 | |
---|
806 | // ### string-position |
---|
807 | private static final Primitive STRING_POSITION = new pf_string_position(); |
---|
808 | private static final class pf_string_position extends Primitive { |
---|
809 | pf_string_position() { |
---|
810 | super("string-position", PACKAGE_EXT, true); |
---|
811 | } |
---|
812 | |
---|
813 | @Override |
---|
814 | public LispObject execute(LispObject first, LispObject second, |
---|
815 | LispObject third) |
---|
816 | |
---|
817 | { |
---|
818 | char c = LispCharacter.getValue(first); |
---|
819 | AbstractString string = checkString(second); |
---|
820 | int start = Fixnum.getValue(third); |
---|
821 | for (int i = start, limit = string.length(); i < limit; i++) { |
---|
822 | if (string.charAt(i) == c) |
---|
823 | return number(i); |
---|
824 | } |
---|
825 | return NIL; |
---|
826 | } |
---|
827 | }; |
---|
828 | |
---|
829 | // ### string-find |
---|
830 | private static final Primitive STRING_FIND = new pf_string_find(); |
---|
831 | private static final class pf_string_find extends Primitive { |
---|
832 | pf_string_find() { |
---|
833 | super("string-find", PACKAGE_EXT, true, "char string"); |
---|
834 | } |
---|
835 | |
---|
836 | @Override |
---|
837 | public LispObject execute(LispObject first, LispObject second) |
---|
838 | |
---|
839 | { |
---|
840 | if (first instanceof LispCharacter) { |
---|
841 | final char c = ((LispCharacter)first).value; |
---|
842 | AbstractString string = Lisp.checkString(second); |
---|
843 | final int limit = string.length(); |
---|
844 | for (int i = 0; i < limit; i++) { |
---|
845 | if (string.charAt(i) == c) |
---|
846 | return first; |
---|
847 | } |
---|
848 | } |
---|
849 | return NIL; |
---|
850 | } |
---|
851 | }; |
---|
852 | |
---|
853 | // ### simple-string-search pattern string => position |
---|
854 | // Searches string for a substring that matches pattern. |
---|
855 | private static final Primitive SIMPLE_STRING_SEARCH = new pf_simple_string_search(); |
---|
856 | private static final class pf_simple_string_search extends Primitive { |
---|
857 | pf_simple_string_search() { |
---|
858 | super("simple-string-search", PACKAGE_EXT, true); |
---|
859 | } |
---|
860 | |
---|
861 | @Override |
---|
862 | public LispObject execute(LispObject first, LispObject second) |
---|
863 | |
---|
864 | { |
---|
865 | // FIXME Don't call getStringValue() here! (Just look at the chars.) |
---|
866 | int index = second.getStringValue().indexOf(first.getStringValue()); |
---|
867 | return index >= 0 ? Fixnum.getInstance(index) : NIL; |
---|
868 | } |
---|
869 | }; |
---|
870 | |
---|
871 | // ### simple-string-fill string character => string |
---|
872 | private static final Primitive STRING_FILL = new pf_string_fill(); |
---|
873 | private static final class pf_string_fill extends Primitive { |
---|
874 | pf_string_fill() { |
---|
875 | super("simple-string-fill", PACKAGE_EXT, true); |
---|
876 | } |
---|
877 | |
---|
878 | @Override |
---|
879 | public LispObject execute(LispObject first, LispObject second) |
---|
880 | |
---|
881 | { |
---|
882 | if (first instanceof AbstractString) { |
---|
883 | AbstractString s = (AbstractString) first; |
---|
884 | s.fill(LispCharacter.getValue(second)); |
---|
885 | return first; |
---|
886 | } |
---|
887 | return type_error(first, Symbol.SIMPLE_STRING); |
---|
888 | } |
---|
889 | }; |
---|
890 | |
---|
891 | } |
---|