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Filters

Filters transform template values before Markdown parsing. Nizel includes built-in filters from @sil/format and @sil/case.

Case Filters

From @sil/case:

Filter Input Output
camel hello world helloWorld
capital hello world Hello world
constant hello world HELLO_WORLD
dot hello world hello.world
header hello world Hello-World
kebab hello world hello-world
lower Hello World hello world
pascal hello world HelloWorld
path hello world hello/world
sentence hello world Hello world
snake hello world hello_world
title hello world Hello World
upper hello world HELLO WORLD

Format Filters

From @sil/format:

Filter Usage Description
format format('currency', 'EUR') Format a number as currency
format format('date', 'dd MMM yyyy') Format a date string
format format('number', '0.00') Format a number with pattern

Usage

---
title: "{{ product.name | title }}"
slug: "{{ product.name | kebab }}"
---

# {{ meta.title }}

Price: {{ price | format('currency', 'EUR') }}
Date: {{ publishedAt | format('date', 'dd MMM yyyy') }}
Status: {{ status | upper }}

Chaining

Filters can be chained:

{{ name | trim | kebab }}
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