Regular expresion

jmphillips
New Altair Community Member
I want to recognize some regular expresion, for example "my cat", and then obtain the next´s word until a point followed or a separate point. the object is to obtain definitions from a text. for example:
A hammer is a tool that consists of a heavy piece of metal at the end of a handle. It is used, for example, to hit nails into a piece of wood or a wall, or to break things into pieces. He used a hammer and chisel to chip away at the wall.
the idea si: set hammer as my regular expresion that i want to identify and then obtain as result "is a tool that consists of a heavy piece of metal at the end of a handle."
How can I do this????
How can I do this????
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Best Answer
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I am doing this without regex. In your case, why not just filter examples where the text contains hammer? I attached a very very basic example.
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Answers
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I am doing this without regex. In your case, why not just filter examples where the text contains hammer? I attached a very very basic example.
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hi @jmphillips perhaps this is what you are looking for?
<?xml version="1.0" encoding="UTF-8"?><process version="9.2.001"> <context> <input/> <output/> <macros/> </context> <operator activated="true" class="process" compatibility="9.2.001" 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="UTF-8"/> <process expanded="true"> <operator activated="true" class="utility:create_exampleset" compatibility="9.2.001" expanded="true" height="68" name="Create ExampleSet" 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="Text "A hammer is a tool that consists of a heavy piece of metal at the end of a handle. It is used to hit nails into a piece of wood or a wall. He used a hammer and chisel to chip away at the wall.""/> <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" class="replace" compatibility="9.2.001" expanded="true" height="82" name="Replace" width="90" x="179" y="34"> <parameter key="attribute_filter_type" value="all"/> <parameter key="attribute" value=""/> <parameter key="attributes" value=""/> <parameter key="use_except_expression" value="false"/> <parameter key="value_type" value="nominal"/> <parameter key="use_value_type_exception" value="false"/> <parameter key="except_value_type" value="file_path"/> <parameter key="block_type" value="single_value"/> <parameter key="use_block_type_exception" value="false"/> <parameter key="except_block_type" value="single_value"/> <parameter key="invert_selection" value="false"/> <parameter key="include_special_attributes" value="false"/> <parameter key="replace_what" value=".*?hammer(.*?)\..*"/> <parameter key="replace_by" value="$1"/> </operator> <connect from_op="Create ExampleSet" from_port="output" to_op="Replace" to_port="example set input"/> <connect from_op="Replace" 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>
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If you want to extend the rage a bit to include also other separators as comma's and so, I'd use the following :
hammer([\w ]+)
So basically this means you have your word, followed by any word character (a to z, 0 to 9 and _) or space.
This will end your result on any punctuation, but you can extend the list of 'good ones' at will3 -
Hello Kayman, long time ago......
I have a question: how can I extend until to punctuation????, including colon (,)
like: " the big hammer is in the forrest, and you know it."
and return to me: "the big hammer is in the forrest, and you know it."
not returning: "the big hammer is in the forrest"0 -
Hi!
In the [] context you can always list the characters you want to include. \w is a shortcut for word characters. If you want "word characters, space and comma", the regular expression would be:hammer([\w ,]+)
Regards,
Balázs
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