Miscellaneous Filters

These are provided in the default filters. Specifically, when TemplateOptions is constructed, these are added via the extension method WithMiscFilters.

default

MethodMiscFilters.Default

Returns a “default value” if the input is not invalid, which means a NilValue, an EmptyValue, or a boolean false. The default value is the first argument.

Liquid

{{ "" | default:"Deane" }}
{{ "Annie" | default:"Deane" }}
{{ false | default:"Deane" }}

Output

Deane
Annie
Deane

You can pass in a named argument of allow_false:true and boolean false values will be considered valid.

date

MethodMiscFilters.Date

Formats a date. This uses the Liquid syntax, not the C# syntax. If you want to use C# formatting syntax (which will not be Liquid-compliant), use format_date (see below).

Here is a table of the Liquid date formatting.

The input must parse as a DateTime, and the argument is required.

Liquid

{{ "2021-12-09" | date:"%A, %B %e, %Y" }}

Output

Thursday, December  9, 2021

(Note the day represented by %e is space-padded, hence the extra space after the month.)

There are some handy “roll-ups”:

%c = “Thursday, 09 December 2021 00:00:00” (note that example input had no time specified)
%D = “12/09/21”
%F = “2021-12-09”
%s = “1639029600” (number of seconds since the epoch, which is helpful for JavaScript)

raw

MethodMiscFilters.Raw

compact

MethodMiscFilters.Compact

Removes “nil” values from arrays. Specifically, it iterates the input array, calls IsNil() on all values, and returns a new array of only those values which returned false

At the default installation, this is only NilValue, BlankValue, and EmptyValue.

Everything other value – including empty strings and boolean false values – will return false from IsNil() which is the default non-overridden behavior from the FluidValue base class (outside of the three mentioned above, none of the other derived classes override the method).

url_encode

MethodMiscFilters.UrlEncode

Encodes special characters in strings according to standard URL encoding. (RFCs 3986 and 3987)

Liquid

{{ "/page?a=b" | url_encode }}

Output

%2Fpage%3Fa%3Db

url_decode

MethodMiscFilters.UrlDecode

Decodes encoded special characters to their ASCII intentions.

Liquid

{{ "%2Fpage%3Fa%3Db" | url_decode }}

Output

/page?a=b

base64_encode

MethodMiscFilters.Base64Encode

Base64 encodes a string. Empty strings will

Liquid

{{ "Deane" | base64_encode }}

Output

RGVhbmU=

base64_decode

MethodMiscFilters.Base64Decode

Base64 decodes a string.

Liquid

{{ "RGVhbmU=" | base64_decode }}

Output

Deane

base64_url_safe_encode

MethodMiscFilters.Base64UrlSafeEncode

Same as base64_decode but it replaces + with - and / with _ so the value can be safely passed in a URL.

base64_url_safe_decode

MethodMiscFilters.Base64UrlSafeDecode

Decodes a value created by base64_url_safe_decode.

strip_html

MethodMiscFilters.StripHtml

Removes anything between < and >, inclusive.

Liquid

{{ "<p>Deane</p>" | strip_html }}

Output

Deane

It doesn’t parse or lex the HTML, it literally just iterates all the characters and concatenates anything outside of brackets.

escape

MethodMiscFilters.Escape

Escapes HTML – converts brackets to entities.

Liquid

{{ '<p>Deane</p>' | escape }}

Output

<p>Deane</p>

escape_once

MethodMiscFilters.EscapeOnce

handle / handleize

MethodMiscFilters.Handleize

json

MethodMiscFilters.Json

Serializes the object to JSON. Works with all FluidTypes. An array will serialize each individual element.

people.Add(new Person() { FirstName = "Deane", LastName = "Barker" });
people.Add(new Person() { FirstName = "Deane", LastName = "Annie" });
c.SetValue("people", people);

Liquid

{{ people | json }}

Output

[{"FirstName":"Deane","LastName":"Barker"},{"FirstName":"Deane","LastName":"Annie"}]

Important Note: when rendering objects, this filter respects member access (see Member Access). If you’re restricting access to members, this might return a bunch of empty values.

time_zone

MethodMiscFilters.ChangeTimeZone

format_number

MethodMiscFilters.FormatNumber

format_string

MethodMiscFilters.FormatString

Allows for token replacement within a string. It wraps the String.Format method in C#.

Liquid

{{ "Vehicle: {0}, Wheels: {1}" | format_string:"bicycle", 2 }}
{{ "Vehicle: {0}, Wheels: {1}" | format_string:"car", 4 }}

Output

Vehicle: bicycle, Wheels: 2
Vehicle: car, Wheels: 4

You can set the culture with an optional named parameter of culture.

(Honestly, this one feels weird to me. Fluid is a templating language. Why do we need another way to template a string?)

format_date

MethodMiscFilters.FormatDate

This is the C# equivalent of date (see above). This does use the standard C# date formatting codes.

Liquid

{{ '2021-12-09' | format_date:'MMMM d, yyyy' }}

Output

December 9, 2021

md5

MethodMiscFilters.MD5

Generates a 32-digit MD5 hash of the input string.

Liquid

{{ "Deane" | md5 }}

Output

8558b56b933bc4d7ba586407732a31e7

sha1

MethodMiscFilters.Sha1

Generates a 40-digit SHA-1 hash of the input string.

Output

86284cbdb4649e52ff1ef657f257e2043e7f73af

Liquid

{{ "Deane" | sha1 }}

sha256

MethodMiscFilters.Sha256

Generates a 64-digit SHA-256 hash of the input string.

Liquid

{{ "Deane" | sha256 }}

Output

c784dcfcc1e5231ff7d9ad4de123ee91bec736d806576a825315164c6431e01b