Named Entity Recognition 25.4
Named Entity Recognition User and Programming Guide

# Compile Grammars

After you write a grammar, compile the XML file into an ECR file using the Named Entity Recognition command-line tool `edktool`. XML files are easy for people to read, but inefficient for computers to process. `edktool` transforms the XML file into an ECR file that is efficient for Named Entity Recognition to use directly. An example of the `edktool` compile command is:

    edktool c mygrammar.xml

This command produces the output file `mygrammar.ecr`.

NOTE: On Microsoft Windows platforms, OpenText recommends that you use only ASCII characters in your grammar file names.

For more information about `edktool`, see Compile and Test Grammars.

NOTE: Named Entity Recognition (Eduction) version 12.7 and later compiles grammars to a compressed ECR format.

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Version 25.4 | Last updated October 2025

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Product: Knowledge Discovery Named Entity Recognition 25.4

Topic Title: Compile Grammars