Tag use

The use tag can be used to define custom tags. Here is a parameter of the use tag:

Name	Description
`filepath`	Path of a file to define custom tags

Here is the structure of tags to be defined within the file at the path filepath:

{% template TAG_NAME PARAM1 PARAM2 %}
    CONTENT
{% endtemplate %}

You need to update TAG_NAME, PARAM1, PARAM2, and CONTENT based on your use case. TAG_NAME must be unique, which means you cannot define multiple tags with the same name. You can have any number of parameters, which means {% template TAG_NAME %} and {% template TAG_NAME PARAM1 PARAM2 PARAM3 %} are also valid. Nested tags are also supported, which means you can put another tag within the CONTENT part.

Example: define predicate_term and format_output tags

Write {% use "templates.geist" %} at the beginning of a Geist template, where you want to use the custom tags, i.e., predicate_term and format_output tags.

Define custom tags in file with the path of "templates.geist":

{% template predicate_term %}says{% endtemplate %}

{% template format_output person sent %}
    {{ person }} {% predicate_term %} {{sent}}
{% endtemplate %}

Use custom tags in the Geist template as other predefined tags (e.g., create)

{% use "templates.geist" %}

{%- create inputformat="nt", isfilepath=False %}
    <http://example.com/test1> <http://example.com/p1> "Hello World".
    <http://example.com/test2> <http://example.com/p2> "What a Nice Day".
{% endcreate %}

{%- query "kb1", isfilepath=False as res %}
    SELECT ?s ?o
    WHERE {
        ?s ?p ?o
    }
    ORDER BY ?s ?o
{% endquery %}
{% set all_triples = res | json2df %}

{% for _, row in all_triples.iterrows() %}
    {% format_output row["s"], row["o"] %}.
{%- endfor %}

{%- destroy %}

Expected output:

<http://example.com/test1> says Hello World.
<http://example.com/test2> says What a Nice Day.