1 | // License: GPL. Copyright 2007 by Immanuel Scholz and others
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2 | package org.openstreetmap.josm.actions.search;
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3 |
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4 | import static org.openstreetmap.josm.tools.I18n.marktr;
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5 | import static org.openstreetmap.josm.tools.I18n.tr;
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6 |
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7 | import java.io.PushbackReader;
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8 | import java.io.StringReader;
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9 | import java.util.Map.Entry;
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10 | import java.util.regex.Matcher;
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11 | import java.util.regex.Pattern;
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12 | import java.util.regex.PatternSyntaxException;
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13 |
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14 | import org.openstreetmap.josm.Main;
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15 | import org.openstreetmap.josm.data.osm.Node;
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16 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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17 | import org.openstreetmap.josm.data.osm.Relation;
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18 | import org.openstreetmap.josm.data.osm.RelationMember;
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19 | import org.openstreetmap.josm.data.osm.User;
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20 | import org.openstreetmap.josm.data.osm.Way;
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21 | import org.openstreetmap.josm.data.osm.visitor.CollectBackReferencesVisitor;
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22 | import org.openstreetmap.josm.tools.DateUtils;
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23 |
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24 | /**
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25 | * Implements a google-like search.
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26 | * @author Imi
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27 | */
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28 | public class SearchCompiler {
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29 |
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30 | private boolean caseSensitive = false;
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31 | private boolean regexSearch = false;
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32 | private String rxErrorMsg = marktr("The regex \"{0}\" had a parse error at offset {1}, full error:\n\n{2}");
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33 | private PushbackTokenizer tokenizer;
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34 |
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35 | public SearchCompiler(boolean caseSensitive, boolean regexSearch, PushbackTokenizer tokenizer) {
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36 | this.caseSensitive = caseSensitive;
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37 | this.regexSearch = regexSearch;
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38 | this.tokenizer = tokenizer;
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39 | }
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40 |
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41 | abstract public static class Match {
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42 | abstract public boolean match(OsmPrimitive osm) throws ParseError;
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43 | }
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44 |
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45 | private static class Always extends Match {
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46 | @Override public boolean match(OsmPrimitive osm) {
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47 | return true;
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48 | }
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49 | }
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50 |
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51 | private static class Not extends Match {
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52 | private final Match match;
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53 | public Not(Match match) {this.match = match;}
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54 | @Override public boolean match(OsmPrimitive osm) throws ParseError {
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55 | return !match.match(osm);
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56 | }
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57 | @Override public String toString() {return "!"+match;}
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58 | }
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59 |
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60 | private static class And extends Match {
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61 | private Match lhs;
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62 | private Match rhs;
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63 | public And(Match lhs, Match rhs) {this.lhs = lhs; this.rhs = rhs;}
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64 | @Override public boolean match(OsmPrimitive osm) throws ParseError {
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65 | return lhs.match(osm) && rhs.match(osm);
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66 | }
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67 | @Override public String toString() {return lhs+" && "+rhs;}
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68 | }
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69 |
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70 | private static class Or extends Match {
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71 | private Match lhs;
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72 | private Match rhs;
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73 | public Or(Match lhs, Match rhs) {this.lhs = lhs; this.rhs = rhs;}
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74 | @Override public boolean match(OsmPrimitive osm) throws ParseError {
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75 | return lhs.match(osm) || rhs.match(osm);
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76 | }
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77 | @Override public String toString() {return lhs+" || "+rhs;}
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78 | }
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79 |
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80 | private static class Id extends Match {
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81 | private long id;
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82 | public Id(long id) {this.id = id;}
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83 | @Override public boolean match(OsmPrimitive osm) {
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84 | return osm.id == id;
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85 | }
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86 | @Override public String toString() {return "id="+id;}
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87 | }
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88 |
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89 | private class KeyValue extends Match {
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90 | private String key;
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91 | private String value;
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92 | public KeyValue(String key, String value) {this.key = key; this.value = value; }
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93 | @Override public boolean match(OsmPrimitive osm) throws ParseError {
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94 |
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95 | if (regexSearch) {
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96 | if (osm.keys == null)
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97 | return false;
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98 |
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99 | /* The string search will just get a key like
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100 | * 'highway' and look that up as osm.get(key). But
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101 | * since we're doing a regex match we'll have to loop
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102 | * over all the keys to see if they match our regex,
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103 | * and only then try to match against the value
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104 | */
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105 |
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106 | Pattern searchKey = null;
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107 | Pattern searchValue = null;
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108 | int searchFlags = regexFlags();
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109 |
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110 | try {
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111 | searchKey = Pattern.compile(key, searchFlags);
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112 | searchValue = Pattern.compile(value, searchFlags);
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113 | } catch (PatternSyntaxException e) {
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114 | throw new ParseError(tr(rxErrorMsg, e.getPattern(), e.getIndex(), e.getMessage()));
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115 | }
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116 |
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117 | for (Entry<String, String> e : osm.keys.entrySet()) {
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118 | String k = e.getKey();
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119 | String v = e.getValue();
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120 |
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121 | Matcher matcherKey = searchKey.matcher(k);
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122 | boolean matchedKey = matcherKey.find();
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123 |
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124 | if (matchedKey) {
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125 | Matcher matcherValue = searchValue.matcher(v);
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126 | boolean matchedValue = matcherValue.find();
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127 |
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128 | if (matchedValue)
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129 | return true;
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130 | }
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131 | }
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132 | } else {
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133 | String value = null;
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134 |
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135 | if (key.equals("timestamp")) {
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136 | value = DateUtils.fromDate(osm.getTimestamp());
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137 | } else {
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138 | value = osm.get(key);
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139 | }
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140 |
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141 | if (value == null)
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142 | return false;
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143 |
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144 | String v1 = caseSensitive ? value : value.toLowerCase();
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145 | String v2 = caseSensitive ? this.value : this.value.toLowerCase();
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146 |
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147 | // is not Java 1.5
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148 | //v1 = java.text.Normalizer.normalize(v1, java.text.Normalizer.Form.NFC);
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149 | //v2 = java.text.Normalizer.normalize(v2, java.text.Normalizer.Form.NFC);
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150 | return v1.indexOf(v2) != -1;
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151 | }
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152 |
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153 | return false;
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154 | }
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155 | @Override public String toString() {return key+"="+value;}
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156 | }
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157 |
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158 | private static class ExactKeyValue extends Match {
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159 |
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160 | private enum Mode {
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161 | ANY, ANY_KEY, ANY_VALUE, EXACT, NONE, MISSING_KEY,
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162 | ANY_KEY_REGEXP, ANY_VALUE_REGEXP, EXACT_REGEXP, MISSING_KEY_REGEXP;
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163 | }
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164 |
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165 | private final String key;
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166 | private final String value;
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167 | private final Pattern keyPattern;
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168 | private final Pattern valuePattern;
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169 | private final Mode mode;
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170 |
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171 | public ExactKeyValue(boolean regexp, String key, String value) throws ParseError {
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172 | if (key == "")
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173 | throw new ParseError(tr("Key cannot be empty when tag operator is used. Sample use: key=value"));
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174 | this.key = key;
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175 | this.value = value;
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176 | if ("".equals(value) && "*".equals(key)) {
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177 | mode = Mode.NONE;
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178 | } else if ("".equals(value)) {
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179 | if (regexp) {
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180 | mode = Mode.MISSING_KEY_REGEXP;
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181 | } else {
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182 | mode = Mode.MISSING_KEY;
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183 | }
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184 | } else if ("*".equals(key) && "*".equals(value)) {
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185 | mode = Mode.ANY;
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186 | } else if ("*".equals(key)) {
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187 | if (regexp) {
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188 | mode = Mode.ANY_KEY_REGEXP;
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189 | } else {
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190 | mode = Mode.ANY_KEY;
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191 | }
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192 | } else if ("*".equals(value)) {
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193 | if (regexp) {
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194 | mode = Mode.ANY_VALUE_REGEXP;
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195 | } else {
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196 | mode = Mode.ANY_VALUE;
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197 | }
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198 | } else {
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199 | if (regexp) {
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200 | mode = Mode.EXACT_REGEXP;
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201 | } else {
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202 | mode = Mode.EXACT;
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203 | }
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204 | }
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205 |
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206 | if (regexp && key.length() > 0 && !key.equals("*")) {
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207 | keyPattern = Pattern.compile(key);
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208 | } else {
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209 | keyPattern = null;
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210 | }
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211 | if (regexp && value.length() > 0 && !value.equals("*")) {
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212 | try {
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213 | valuePattern = Pattern.compile(value);
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214 | } catch (PatternSyntaxException e) {
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215 | throw new ParseError(tr("Pattern Syntax Error: Pattern {0} in {1} is illegal!", e.getPattern(), value));
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216 | }
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217 | } else {
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218 | valuePattern = null;
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219 | }
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220 | }
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221 |
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222 | @Override
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223 | public boolean match(OsmPrimitive osm) throws ParseError {
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224 |
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225 | if (osm.keys == null || osm.keys.isEmpty())
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226 | return mode == Mode.NONE;
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227 |
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228 | switch (mode) {
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229 | case NONE:
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230 | return false;
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231 | case MISSING_KEY:
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232 | return osm.get(key) == null;
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233 | case ANY:
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234 | return true;
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235 | case ANY_VALUE:
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236 | return osm.get(key) != null;
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237 | case ANY_KEY:
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238 | for (String v:osm.keys.values()) {
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239 | if (v.equals(value))
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240 | return true;
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241 | }
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242 | return false;
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243 | case EXACT:
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244 | return value.equals(osm.get(key));
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245 | case ANY_KEY_REGEXP:
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246 | for (String v:osm.keys.values()) {
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247 | if (valuePattern.matcher(v).matches())
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248 | return true;
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249 | }
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250 | return false;
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251 | case ANY_VALUE_REGEXP:
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252 | case EXACT_REGEXP:
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253 | for (Entry<String, String> entry:osm.keys.entrySet()) {
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254 | if (keyPattern.matcher(entry.getKey()).matches()) {
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255 | if (mode == Mode.ANY_VALUE_REGEXP
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256 | || valuePattern.matcher(entry.getValue()).matches())
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257 | return true;
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258 | }
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259 | }
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260 | return false;
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261 | case MISSING_KEY_REGEXP:
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262 | for (String k:osm.keys.keySet()) {
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263 | if (keyPattern.matcher(k).matches())
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264 | return false;
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265 | }
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266 | return true;
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267 | }
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268 | throw new AssertionError("Missed state");
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269 | }
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270 |
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271 | @Override
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272 | public String toString() {
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273 | return key + '=' + value;
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274 | }
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275 |
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276 | }
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277 |
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278 | private class Any extends Match {
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279 | private String s;
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280 | public Any(String s) {this.s = s;}
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281 | @Override public boolean match(OsmPrimitive osm) throws ParseError {
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282 | if (osm.keys == null)
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283 | return s.equals("");
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284 |
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285 | String search;
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286 | Pattern searchRegex = null;
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287 |
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288 | if (regexSearch) {
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289 | search = s;
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290 | int searchFlags = regexFlags();
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291 |
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292 | try {
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293 | searchRegex = Pattern.compile(search, searchFlags);
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294 | } catch (PatternSyntaxException e) {
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295 | throw new ParseError(tr(rxErrorMsg, e.getPattern(), e.getIndex(), e.getMessage()));
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296 | }
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297 | } else {
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298 | search = caseSensitive ? s : s.toLowerCase();
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299 | }
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300 |
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301 | // is not Java 1.5
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302 | //search = java.text.Normalizer.normalize(search, java.text.Normalizer.Form.NFC);
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303 | for (Entry<String, String> e : osm.keys.entrySet()) {
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304 | if (regexSearch) {
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305 | String key = e.getKey();
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306 | String value = e.getValue();
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307 |
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308 | // is not Java 1.5
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309 | //value = java.text.Normalizer.normalize(value, java.text.Normalizer.Form.NFC);
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310 |
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311 | Matcher keyMatcher = searchRegex.matcher(key);
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312 | Matcher valMatcher = searchRegex.matcher(value);
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313 |
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314 | boolean keyMatchFound = keyMatcher.find();
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315 | boolean valMatchFound = valMatcher.find();
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316 |
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317 | if (keyMatchFound || valMatchFound)
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318 | return true;
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319 | } else {
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320 | String key = caseSensitive ? e.getKey() : e.getKey().toLowerCase();
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321 | String value = caseSensitive ? e.getValue() : e.getValue().toLowerCase();
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322 |
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323 | // is not Java 1.5
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324 | //value = java.text.Normalizer.normalize(value, java.text.Normalizer.Form.NFC);
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325 |
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326 | if (key.indexOf(search) != -1 || value.indexOf(search) != -1)
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327 | return true;
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328 | }
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329 | }
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330 | if (osm.user != null) {
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331 | String name = osm.user.name;
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332 | // is not Java 1.5
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333 | //String name = java.text.Normalizer.normalize(name, java.text.Normalizer.Form.NFC);
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334 | if (!caseSensitive) {
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335 | name = name.toLowerCase();
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336 | }
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337 | if (name.indexOf(search) != -1)
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338 | return true;
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339 | }
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340 | return false;
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341 | }
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342 | @Override public String toString() {return s;}
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343 | }
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344 |
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345 | private static class ExactType extends Match {
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346 | private final Class<?> type;
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347 | public ExactType(String type) throws ParseError {
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348 | if ("node".equals(type)) {
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349 | this.type = Node.class;
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350 | } else if ("way".equals(type)) {
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351 | this.type = Way.class;
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352 | } else if ("relation".equals(type)) {
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353 | this.type = Relation.class;
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354 | } else
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355 | throw new ParseError(tr("Unknown primitive type: {0}. Allowed values are node, way or relation",
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356 | type));
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357 | }
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358 | @Override public boolean match(OsmPrimitive osm) {
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359 | return osm.getClass() == type;
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360 | }
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361 | @Override public String toString() {return "type="+type;}
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362 | }
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363 |
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364 | private static class UserMatch extends Match {
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365 | private User user;
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366 | public UserMatch(String user) { this.user = User.get(user); }
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367 | @Override public boolean match(OsmPrimitive osm) {
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368 | return osm.user == user;
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369 | }
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370 | @Override public String toString() { return "user=" + user.name; }
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371 | }
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372 |
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373 | private static class NodeCount extends Match {
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374 | private int count;
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375 | public NodeCount(int count) {this.count = count;}
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376 | @Override public boolean match(OsmPrimitive osm) {
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377 | return osm instanceof Way && ((Way) osm).nodes.size() == count;
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378 | }
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379 | @Override public String toString() {return "nodes="+count;}
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380 | }
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381 |
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382 | private static class NodeCountRange extends Match {
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383 | private int minCount;
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384 | private int maxCount;
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385 | public NodeCountRange(int minCount, int maxCount) {
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386 | if(maxCount < minCount) {
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387 | this.minCount = maxCount;
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388 | this.maxCount = minCount;
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389 | } else {
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390 | this.minCount = minCount;
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391 | this.maxCount = maxCount;
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392 | }
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393 | }
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394 | @Override public boolean match(OsmPrimitive osm) {
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395 | if(!(osm instanceof Way)) return false;
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396 | int size = ((Way)osm).nodes.size();
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397 | return (size >= minCount) && (size <= maxCount);
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398 | }
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399 | @Override public String toString() {return "nodes="+minCount+"-"+maxCount;}
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400 | }
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401 |
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402 | private static class Modified extends Match {
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403 | @Override public boolean match(OsmPrimitive osm) {
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404 | return osm.modified || osm.id == 0;
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405 | }
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406 | @Override public String toString() {return "modified";}
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407 | }
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408 |
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409 | private static class Selected extends Match {
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410 | @Override public boolean match(OsmPrimitive osm) {
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411 | return osm.selected;
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412 | }
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413 | @Override public String toString() {return "selected";}
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414 | }
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415 |
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416 | private static class Incomplete extends Match {
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417 | @Override public boolean match(OsmPrimitive osm) {
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418 | return osm.incomplete;
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419 | }
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420 | @Override public String toString() {return "incomplete";}
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421 | }
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422 |
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423 | private static class Untagged extends Match {
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424 | @Override public boolean match(OsmPrimitive osm) {
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425 | return !osm.isTagged();
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426 | }
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427 | @Override public String toString() {return "untagged";}
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428 | }
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429 |
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430 | private static class Parent extends Match {
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431 | private Match child;
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432 | public Parent(Match m) { child = m; }
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433 | @Override public boolean match(OsmPrimitive osm) throws ParseError {
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434 | boolean isParent = false;
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435 |
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436 | // "parent" (null) should mean the same as "parent()"
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437 | // (Always). I.e. match everything
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438 | if (child == null) {
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439 | child = new Always();
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440 | }
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441 |
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442 | if (osm instanceof Way) {
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443 | for (Node n : ((Way)osm).nodes) {
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444 | isParent |= child.match(n);
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445 | }
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446 | } else if (osm instanceof Relation) {
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447 | for (RelationMember member : ((Relation)osm).members) {
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448 | if (member.member != null) {
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449 | isParent |= child.match(member.member);
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450 | }
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451 | }
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452 | }
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453 | return isParent;
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454 | }
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455 | @Override public String toString() {return "parent(" + child + ")";}
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456 | }
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457 |
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458 | private static class Child extends Match {
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459 | private Match parent;
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460 | public Child(Match m) { parent = m; }
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461 | @Override public boolean match(OsmPrimitive osm) throws ParseError {
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462 | // "child" (null) should mean the same as "child()"
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463 | // (Always). I.e. match everything
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464 | if (parent == null) {
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465 | parent = new Always();
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466 | }
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467 |
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468 | boolean isChild = false;
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469 | CollectBackReferencesVisitor backRefs = new CollectBackReferencesVisitor(Main.main.getCurrentDataSet());
|
---|
470 | osm.visit(backRefs);
|
---|
471 | for (OsmPrimitive p : backRefs.data) {
|
---|
472 | isChild |= parent.match(p);
|
---|
473 | }
|
---|
474 | return isChild;
|
---|
475 | }
|
---|
476 | @Override public String toString() {return "child(" + parent + ")";}
|
---|
477 | }
|
---|
478 |
|
---|
479 | public static class ParseError extends Exception {
|
---|
480 | public ParseError(String msg) {
|
---|
481 | super(msg);
|
---|
482 | }
|
---|
483 | }
|
---|
484 |
|
---|
485 | public static Match compile(String searchStr, boolean caseSensitive, boolean regexSearch)
|
---|
486 | throws ParseError {
|
---|
487 | return new SearchCompiler(caseSensitive, regexSearch,
|
---|
488 | new PushbackTokenizer(
|
---|
489 | new PushbackReader(new StringReader(searchStr))))
|
---|
490 | .parse();
|
---|
491 | }
|
---|
492 |
|
---|
493 | public Match parse() throws ParseError {
|
---|
494 | Match m = parseJuxta();
|
---|
495 | if (!tokenizer.readIfEqual(null))
|
---|
496 | throw new ParseError(tr("Unexpected token: {0}", tokenizer.nextToken()));
|
---|
497 | return m;
|
---|
498 | }
|
---|
499 |
|
---|
500 | private Match parseJuxta() throws ParseError {
|
---|
501 | Match juxta = new Always();
|
---|
502 |
|
---|
503 | Match m;
|
---|
504 | while ((m = parseOr()) != null) {
|
---|
505 | juxta = new And(m, juxta);
|
---|
506 | }
|
---|
507 |
|
---|
508 | return juxta;
|
---|
509 | }
|
---|
510 |
|
---|
511 | private Match parseOr() throws ParseError {
|
---|
512 | Match a = parseNot();
|
---|
513 | if (tokenizer.readIfEqual("|")) {
|
---|
514 | Match b = parseNot();
|
---|
515 | if (a == null || b == null)
|
---|
516 | throw new ParseError(tr("Missing arguments for or."));
|
---|
517 | return new Or(a, b);
|
---|
518 | }
|
---|
519 | return a;
|
---|
520 | }
|
---|
521 |
|
---|
522 | private Match parseNot() throws ParseError {
|
---|
523 | if (tokenizer.readIfEqual("-")) {
|
---|
524 | Match m = parseParens();
|
---|
525 | if (m == null)
|
---|
526 | throw new ParseError(tr("Missing argument for not."));
|
---|
527 | return new Not(m);
|
---|
528 | }
|
---|
529 | return parseParens();
|
---|
530 | }
|
---|
531 |
|
---|
532 | private Match parseParens() throws ParseError {
|
---|
533 | if (tokenizer.readIfEqual("(")) {
|
---|
534 | Match m = parseJuxta();
|
---|
535 | if (!tokenizer.readIfEqual(")"))
|
---|
536 | throw new ParseError(tr("Expected closing parenthesis."));
|
---|
537 | return m;
|
---|
538 | }
|
---|
539 | return parsePat();
|
---|
540 | }
|
---|
541 |
|
---|
542 | private Match parsePat() throws ParseError {
|
---|
543 | String tok = tokenizer.readText();
|
---|
544 |
|
---|
545 | if (tokenizer.readIfEqual(":")) {
|
---|
546 | String tok2 = tokenizer.readText();
|
---|
547 | if (tok == null) {
|
---|
548 | tok = "";
|
---|
549 | }
|
---|
550 | if (tok2 == null) {
|
---|
551 | tok2 = "";
|
---|
552 | }
|
---|
553 | return parseKV(tok, tok2);
|
---|
554 | }
|
---|
555 |
|
---|
556 | if (tokenizer.readIfEqual("=")) {
|
---|
557 | String tok2 = tokenizer.readText();
|
---|
558 | if (tok == null) {
|
---|
559 | tok = "";
|
---|
560 | }
|
---|
561 | if (tok2 == null) {
|
---|
562 | tok2 = "";
|
---|
563 | }
|
---|
564 | return new ExactKeyValue(regexSearch, tok, tok2);
|
---|
565 | }
|
---|
566 |
|
---|
567 | if (tok == null)
|
---|
568 | return null;
|
---|
569 | else if (tok.equals("modified"))
|
---|
570 | return new Modified();
|
---|
571 | else if (tok.equals("incomplete"))
|
---|
572 | return new Incomplete();
|
---|
573 | else if (tok.equals("untagged"))
|
---|
574 | return new Untagged();
|
---|
575 | else if (tok.equals("selected"))
|
---|
576 | return new Selected();
|
---|
577 | else if (tok.equals("child"))
|
---|
578 | return new Child(parseParens());
|
---|
579 | else if (tok.equals("parent"))
|
---|
580 | return new Parent(parseParens());
|
---|
581 | else
|
---|
582 | return new Any(tok);
|
---|
583 | }
|
---|
584 |
|
---|
585 | private Match parseKV(String key, String value) throws ParseError {
|
---|
586 | if (key.equals("type"))
|
---|
587 | return new ExactType(value);
|
---|
588 | else if (key.equals("user"))
|
---|
589 | return new UserMatch(value);
|
---|
590 | else if (key.equals("nodes")) {
|
---|
591 | try {
|
---|
592 | String[] range = value.split("-");
|
---|
593 | if (range.length == 1)
|
---|
594 | return new NodeCount(Integer.parseInt(value));
|
---|
595 | else if (range.length == 2)
|
---|
596 | return new NodeCountRange(Integer.parseInt(range[0]), Integer.parseInt(range[1]));
|
---|
597 | else
|
---|
598 | throw new ParseError(tr("Wrong number of parameters for nodes operator."));
|
---|
599 | } catch (NumberFormatException e) {
|
---|
600 | throw new ParseError(tr("Incorrect value of nodes operator: {0}. Nodes operator expects number of nodes or range, for example nodes:10-20", value));
|
---|
601 | }
|
---|
602 |
|
---|
603 | } else if (key.equals("id")) {
|
---|
604 | try {
|
---|
605 | return new Id(Long.parseLong(value));
|
---|
606 | } catch (NumberFormatException x) {
|
---|
607 | throw new ParseError(tr("Incorrect value of id operator: {0}. Number is expected.", value));
|
---|
608 | }
|
---|
609 | } else
|
---|
610 | return new KeyValue(key, value);
|
---|
611 | }
|
---|
612 |
|
---|
613 | private int regexFlags() {
|
---|
614 | int searchFlags = 0;
|
---|
615 |
|
---|
616 | // Enables canonical Unicode equivalence so that e.g. the two
|
---|
617 | // forms of "\u00e9gal" and "e\u0301gal" will match.
|
---|
618 | //
|
---|
619 | // It makes sense to match no matter how the character
|
---|
620 | // happened to be constructed.
|
---|
621 | searchFlags |= Pattern.CANON_EQ;
|
---|
622 |
|
---|
623 | // Make "." match any character including newline (/s in Perl)
|
---|
624 | searchFlags |= Pattern.DOTALL;
|
---|
625 |
|
---|
626 | // CASE_INSENSITIVE by itself only matches US-ASCII case
|
---|
627 | // insensitively, but the OSM data is in Unicode. With
|
---|
628 | // UNICODE_CASE casefolding is made Unicode-aware.
|
---|
629 | if (!caseSensitive) {
|
---|
630 | searchFlags |= (Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE);
|
---|
631 | }
|
---|
632 |
|
---|
633 | return searchFlags;
|
---|
634 | }
|
---|
635 | }
|
---|