Rename by Replacing - Unexpected RegEx output

raulsamaniego

Hi, 

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">

  <context>

    <input/>

    <output/>

    <macros/>

  </context>

  <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>

      <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"/>

      </operator>

      <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"/>

    </process>

  </operator>

</process>

kayman

Because you use a greedy regex, no real start or end point. 
Try with ^(.*)$ instead. 

raulsamaniego

Thanks!!
Even though only ^(.*) is really needed in this case, I'll use the $ also. Just to avoid forget ir next time.