# Introduction to Configuration

Configuration parameters are set in the configuration file. When setting configuration parameter values, you must use UTF-8.

This section describes how to enter parameter values in the configuration file.

## Enter Boolean Values

The following settings for Boolean parameters are interchangeable:

    TRUE = true = ON = on = Y = y = 1

    FALSE = false = OFF = off = N = n = 0

## Enter String Values

To enter a comma-separated list of strings when one of the strings contains a comma, you can indicate the start and the end of the string with quotation marks, for example:

    ParameterName=cat,dog,bird,"wing,beak",turtle

Alternatively, you can escape the comma with a backslash:

`ParameterName=cat,dog,bird,wing\,beak,turtle`

If any string in a comma-separated list contains quotation marks, you must put this string into quotation marks and escape each quotation mark in the string by inserting a backslash before it. For example:

    ParameterName="<font face=\"arial\" size=\"+1\"><b>","<p>"

Here, quotation marks indicate the beginning and end of the string. All quotation marks that are contained in the string are escaped.

## Include an External Configuration File

You can reference an external configuration file to include shared settings. The following examples show how to include a configuration file, or a section or parameter from the file.

- Include a whole configuration file:

      < "ConfigurationFile.cfg"

- Include a section from another configuration file (including the section heading):

      < "ConfigurationFile.cfg" [SharedSection]

- Include one or more parameters from another configuration file (the import does not include the section heading):

      [SectionName]
      < "ConfigurationFile.cfg" [SharedSection] ParameterName

  You can also include a default value to use if the shared configuration file does not contain the specified parameter:

      < "ConfigurationFile.cfg" [SharedSection] ParameterName=DefaultValue

  You can use wildcards to import multiple parameters, but this method does not support default values. The `*` wildcard matches zero or more characters. The `?` wildcard matches any single character. Use the pipe character `|` as a separator between wildcard strings. For example:

      < "ConfigurationFile.cfg" [SharedSection] ParameterA*|ParameterB?|ParameterC

- Merge a section of an external configuration file into a specified section with a different name:

      [SectionName] < "ConfigurationFile.cfg" [SharedSection]

  This example includes the values in `[SharedSection]` from the external configuration file into `[SectionName]` in your file.

In all these examples, `ConfigurationFile.cfg` is the path and file name of the shared configuration file. You can specify the file location by using absolute paths, relative paths, and network locations. For example:

    ../sharedconfig.cfg
    K:\sharedconfig\sharedsettings.cfg
    \\example.com\shared\idol.cfg
    file://example.com/shared/idol.cfg

Relative paths are relative to the primary configuration file.

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