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Rename by Replacing - Unexpected RegEx output

raulsamaniegoraulsamaniego Member Posts: 9 Contributor II

Maybe I'm doing something wrong but I don't understand why this replacement regex adds "MyString" after $1.

Thanks in advance
<?xml version="1.0" encoding="UTF-8"?><process version="9.9.000">
  <operator activated="true" class="process" compatibility="9.9.000" expanded="true" name="Process">
    <parameter key="logverbosity" value="init"/>
    <parameter key="random_seed" value="2001"/>
    <parameter key="send_mail" value="never"/>
    <parameter key="notification_email" value=""/>
    <parameter key="process_duration_for_mail" value="30"/>
    <parameter key="encoding" value="SYSTEM"/>
    <process expanded="true">
      <operator activated="true" class="utility:create_exampleset" compatibility="9.9.000" expanded="true" height="68" name="Create ExampleSet (3)" width="90" x="45" y="34">
        <parameter key="generator_type" value="comma separated text"/>
        <parameter key="number_of_examples" value="100"/>
        <parameter key="use_stepsize" value="false"/>
        <list key="function_descriptions"/>
        <parameter key="add_id_attribute" value="false"/>
        <list key="numeric_series_configuration"/>
        <list key="date_series_configuration"/>
        <list key="date_series_configuration (interval)"/>
        <parameter key="date_format" value="yyyy-MM-dd HH:mm:ss"/>
        <parameter key="time_zone" value="SYSTEM"/>
        <parameter key="input_csv_text" value="Attribute01&#10;202104"/>
        <parameter key="column_separator" value=","/>
        <parameter key="parse_all_as_nominal" value="false"/>
        <parameter key="decimal_point_character" value="."/>
        <parameter key="trim_attribute_names" value="true"/>
      <operator activated="true" breakpoints="after" class="rename_by_replacing" compatibility="9.9.000" expanded="true" height="82" name="Rename by Replacing" width="90" x="179" y="34">
        <parameter key="attribute_filter_type" value="value_type"/>
        <parameter key="attribute" value=""/>
        <parameter key="attributes" value=""/>
        <parameter key="use_except_expression" value="false"/>
        <parameter key="value_type" value="integer"/>
        <parameter key="use_value_type_exception" value="false"/>
        <parameter key="except_value_type" value="time"/>
        <parameter key="block_type" value="attribute_block"/>
        <parameter key="use_block_type_exception" value="false"/>
        <parameter key="except_block_type" value="value_matrix_row_start"/>
        <parameter key="invert_selection" value="false"/>
        <parameter key="include_special_attributes" value="false"/>
        <parameter key="replace_what" value="(.*)"/>
        <parameter key="replace_by" value="MyString$1"/>
      <connect from_op="Create ExampleSet (3)" from_port="output" to_op="Rename by Replacing" to_port="example set input"/>
      <connect from_op="Rename by Replacing" from_port="example set output" to_port="result 1"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="0"/>
      <portSpacing port="sink_result 2" spacing="0"/>


Best Answer

  • Options
    kaymankayman Member Posts: 662 Unicorn
    Solution Accepted
    Because you use a greedy regex, no real start or end point. 
    Try with ^(.*)$ instead. 


  • Options
    raulsamaniegoraulsamaniego Member Posts: 9 Contributor II
    Even though only ^(.*) is really needed in this case, I'll use the $ also. Just to avoid forget ir next time. :)
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