[#BloombergLP-balcl-TypeInfo-ParseInputSource]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balcl.adoc[balcl]::xref:BloombergLP/balcl/TypeInfo.adoc[TypeInfo]::ParseInputSource
:relfileprefix: ../../../
:mrdocs:

Enumerate the sources of input when parsing an option type.

== Synopsis

Declared in `<balcl_typeinfo.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
enum ParseInputSource;
----

== Description

This enumeration differentiates the source of input when parsing an option type. Note that boolean options, in particular, are treated differently when supplied on the command line from how they are treated when supplied by an environment variable (see 'balcl_commandline').

== Members

[cols="1,4"]
|===
| Name| Description
| `e_COMMAND_LINE` 
| input came from the command line
| `e_ENVIRONMENT_VARIABLE` 
| input came from an environment variable
|===



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