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    1   /**
    2    * Copyright (c) 2004-2011 QOS.ch
    3    * All rights reserved.
    4    *
    5    * Permission is hereby granted, free  of charge, to any person obtaining
    6    * a  copy  of this  software  and  associated  documentation files  (the
    7    * "Software"), to  deal in  the Software without  restriction, including
    8    * without limitation  the rights to  use, copy, modify,  merge, publish,
    9    * distribute,  sublicense, and/or sell  copies of  the Software,  and to
    10   * permit persons to whom the Software  is furnished to do so, subject to
    11   * the following conditions:
    12   *
    13   * The  above  copyright  notice  and  this permission  notice  shall  be
    14   * included in all copies or substantial portions of the Software.
    15   *
    16   * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
    17   * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
    18   * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
    19   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
    20   * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
    21   * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
    22   * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
    23   *
    24   */
    25  package org.slf4j.migrator.line;
    26
    27  import java.util.ArrayList;
    28  import java.util.Iterator;
    29  import java.util.regex.Pattern;
    30
    31  import org.slf4j.migrator.line.ConversionRule;
    32  import org.slf4j.migrator.line.MultiGroupConversionRule;
    33  import org.slf4j.migrator.line.RuleSet;
    34  import org.slf4j.migrator.line.SingleConversionRule;
    35
    36  class TrivialMatcher implements RuleSet {
    37
    38      private ArrayList<ConversionRule> conversionRuleList;
    39
    40      public TrivialMatcher() {
    41          // simple rule no capturing group is defined, we use default capturing group which is group zero
    42          SingleConversionRule cr = new SingleConversionRule(Pattern.compile("import org.slf4j.converter"), "simple replacement with an unique capturing group");
    43
    44          // we define 4 differents capturing groups
    45          MultiGroupConversionRule cr1 = new MultiGroupConversionRule(Pattern.compile("(first group)( second group)( third group)( 4th group)"));
    46          // group zero is ignored during treatment
    47          // replacement for the first
    48          cr1.addReplacement(1, "1st group");
    49          // no replacement for the second group it will remains the same
    50          // empty string for the third group it will be deleted
    51          cr1.addReplacement(3, "");
    52          // no replacement for the third group it will remains the same
    53
    54          conversionRuleList = new ArrayList<ConversionRule>();
    55          conversionRuleList.add(cr);
    56          conversionRuleList.add(cr1);
    57      }
    58
    59      public Iterator<ConversionRule> iterator() {
    60          return conversionRuleList.iterator();
    61      }
    62
    63  }