1 | package ise.antelope.tasks;
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2 |
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3 | import java.util.regex.*;
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4 |
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5 | import org.apache.tools.ant.BuildException;
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6 |
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7 | import org.apache.tools.ant.Task;
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8 |
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9 | /**
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10 | * Copyright 2003
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11 | *
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12 | * @version $Revision: 1.2 $
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13 | */
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14 | public class Find extends Task {
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15 |
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16 | private String findIn = null;
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17 | private String regex = null;
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18 | private String property = null;
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19 | private int group = 0;
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20 | private boolean dotall = false;
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21 | private boolean caseInsensitive = false;
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22 | private boolean multiLine = false;
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23 | private boolean unicodeCase = false;
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24 | private boolean canonEq = false;
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25 | private boolean comments = false;
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26 | private boolean unixLines = false;
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27 | private boolean allMatches = false;
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28 | private String separator = System.getProperty("line.separator");
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29 |
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30 | /**
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31 | * Where to look.
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32 | *
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33 | * @param string The new in value
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34 | */
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35 | public void setIn(String string) {
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36 | findIn = string;
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37 | }
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38 |
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39 | /**
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40 | * What to look for.
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41 | *
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42 | * @param regex The new regex value
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43 | */
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44 | public void setRegex(String regex) {
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45 | this.regex = regex;
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46 | }
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47 |
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48 | /**
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49 | * Where to put the results of the search. If 'allmatches' is true, then
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50 | * a second property with this name plus "_count" will be created with the
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51 | * number of matches found.
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52 | *
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53 | * @param name The new property value
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54 | */
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55 | public void setProperty(String name) {
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56 | property = name;
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57 | }
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58 |
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59 | /**
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60 | * Set a specific group from the regex.
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61 | *
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62 | * @param g The new group value
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63 | */
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64 | public void setGroup(int g) {
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65 | group = g;
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66 | }
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67 |
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68 | /**
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69 | * Sets the dotall attribute for the regex.
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70 | *
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71 | * @param b The new dotall value
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72 | */
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73 | public void setDotall(boolean b) {
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74 | dotall = b;
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75 | }
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76 |
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77 | /**
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78 | * Sets the caseinsensitive attribute for the regex.
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79 | *
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80 | * @param b The new caseinsensitive value
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81 | */
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82 | public void setCaseinsensitive(boolean b) {
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83 | caseInsensitive = b;
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84 | }
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85 |
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86 | /**
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87 | * Sets the multiline attribute for the regex.
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88 | *
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89 | * @param b The new multiline value
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90 | */
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91 | public void setMultiline(boolean b) {
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92 | multiLine = b;
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93 | }
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94 |
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95 | /**
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96 | * Sets the unicodecase attribute for the regex.
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97 | *
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98 | * @param b The new unicodecase value
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99 | */
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100 | public void setUnicodecase(boolean b) {
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101 | unicodeCase = b;
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102 | }
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103 |
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104 | /**
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105 | * Sets the canoneq attribute for the regex.
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106 | *
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107 | * @param b The new canoneq value
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108 | */
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109 | public void setCanoneq(boolean b) {
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110 | canonEq = b;
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111 | }
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112 |
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113 | /**
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114 | * Sets the comments attribute for the regex.
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115 | *
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116 | * @param b The new comments value
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117 | */
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118 | public void setComments(boolean b) {
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119 | comments = b;
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120 | }
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121 |
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122 | public void setUnixlines(boolean b) {
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123 | unixLines = b;
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124 | }
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125 |
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126 | /**
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127 | * If true, concatentates all matches into a single result, if false, only
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128 | * the first match is returned in the result.
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129 | *
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130 | * @param b default is false, only show the first match.
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131 | */
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132 | public void setAllmatches(boolean b) {
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133 | allMatches = b;
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134 | }
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135 |
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136 | /**
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137 | * Uses in conjunction with <code>setAllmatches</code>, this string will be
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138 | * placed between each match in the final result.
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139 | *
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140 | * @param s the separator, default is "".
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141 | */
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142 | public void setSeparator(String s) {
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143 | separator = s;
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144 | }
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145 |
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146 | /** Do the grep */
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147 | public void execute() {
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148 | // check attributes
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149 | if (findIn == null)
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150 | throw new BuildException("'in' is required");
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151 | if (regex == null)
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152 | throw new BuildException("'regex' is required");
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153 | if (property == null)
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154 | throw new BuildException("'property' is required");
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155 |
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156 | // set flags for pattern
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157 | int flags = 0;
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158 | if (dotall)
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159 | flags += Pattern.DOTALL;
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160 | if (caseInsensitive)
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161 | flags += Pattern.CASE_INSENSITIVE;
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162 | if (multiLine)
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163 | flags += Pattern.MULTILINE;
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164 | if (unicodeCase)
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165 | flags += Pattern.UNICODE_CASE;
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166 | if (canonEq)
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167 | flags += Pattern.CANON_EQ;
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168 | if (comments)
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169 | flags += Pattern.COMMENTS;
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170 | if (unixLines)
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171 | flags += Pattern.UNIX_LINES;
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172 |
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173 | try {
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174 | Pattern p = Pattern.compile(regex, flags);
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175 | Matcher m = p.matcher(findIn);
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176 | StringBuffer result = new StringBuffer();
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177 | int count = 0;
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178 | if (allMatches) {
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179 | while (m.find()) {
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180 | String match = m.group(group);
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181 | if (match != null) {
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182 | result.append(match).append(separator);
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183 | ++ count;
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184 | }
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185 | }
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186 | }
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187 | else if (m.find()) {
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188 | String match = m.group(group);
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189 | if (match != null)
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190 | result.append(match);
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191 | }
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192 |
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193 | if (result.length() > 0) {
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194 | getProject().setUserProperty(property, result.toString());
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195 | if (allMatches)
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196 | getProject().setUserProperty(property + "_count", String.valueOf(count));
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197 | }
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198 | else
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199 | log("No match.");
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200 | }
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201 | catch (Exception e) {
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202 | throw new BuildException(e.getMessage());
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203 | }
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204 | }
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205 | }
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206 |
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