# Setting and managing parser rules

Available in...

* Big Data Platform
* Cloud API Services Platform
* Cloud Big Data Platform
* Cloud Data Fabric
* Cloud Data Management Platform
* Data Fabric
* Data Management Platform
* Data Services Platform
* Qlik Talend Cloud Enterprise Edition
* Qlik Talend Cloud Premium Edition
* Real-Time Big Data Platform

Parser rules describe and define the expected composition of a data string to be analyzed using the ANTLR symbols

Using parser rules this way allows you to normalize and standardize the analyzed data according to your expectation. Parser rules can also be called standardization rules.

For example, a parser rule reading <INT><WORD+><StreetType> defines a standard address data format like 12 main street.

You can create a set of parser rules either form the DQ repository tree view in the Profiling perspective or from the Basic settings view of the tStandardizeRow component. However, when you need to test, store and manage the sets of parser rules for purposes such as sharing, reusing, or adapting any given set of rules, you must use the DQ repository tree view.

For further information about how to create and use parser rules to analyze, normalize and standardize data using tStandardizeRow, see [tStandardizeRow](https://help.qlik.com/talend/en-US/components/8.0/standardization/tstandardizerow).

For further information about the ANTLR parser, see the [documentation](https://www.antlr.org/).

### In this section

* [Creating a set of parser rules](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2026-09/creating-set-of-parser-rules)
* [Exporting parser rules](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2026-09/exporting-parser-rules)
* [Importing a parser rule](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2026-09/importing-a-parser-rule)
* [Modifying an established parser rule set](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2026-09/modifying-established-parser-rule-set)