Class: Formatter

Monster .Text. Formatter

Messages can be formatted with the formatter. To do this, an object with the values must be passed to the formatter. The message can then contain placeholders.

Look at the example below. The placeholders use the logic of Pipe.

Marker in marker

Markers can be nested. Here, the inner marker is resolved first ${subkey} ↦ 1 = ${mykey2} and then the outer marker ${mykey2}.

const text = '${mykey${subkey}}';
let obj = {
 mykey2: "1",
 subkey: "2"
};

new Formatter(obj).format(text);
// ↦ 1

Callbacks

The values in a formatter can be adjusted via the commands of the Transformer or thePipe. There is also the possibility to use callbacks.

const formatter = new Formatter({x: '1'}, { callbacks: { quote: (value) => { return '"' + value + '"' } } });

formatter.format('${x | call:quote}')) // ↦ "1"

Marker with parameter

A string can also bring its own values. These must then be separated from the key by a separator ::. The values themselves must be specified in key/value pairs. The key must be separated from the value by a separator =.

When using a pipe, you must pay attention to the separators.

Constructor

new Formatter(object)

Default values for the markers are ${ and }

Parameters:

Name	Type	Description
`object`	object

Since: 1.12.0
Copyright: schukai GmbH
License: AGPLv3

Throws:

value is not a object
Type TypeError

Example

import {Formatter} from '@schukai/monster/source/text/formatter.mjs';

new Formatter({
      a: {
          b: {
              c: "Hello"
          },
          d: "world",
      }
  }).format("${a.b.c} ${a.d | ucfirst}!"); // with pipe

// ↦ Hello World!

Members

defaults

Properties

Name Type Default Description

marker

object

Properties

Name	Type	Default	Description
`open`	array	["${"
`close`	array	["${"

parameter

object

Properties

Name	Type	Default	Description
`delimiter`	string	"::"
`assignment`	string	"="

callbacks object {}

Methods

format(text) → {string}

Parameters:

Name	Type	Description
`text`	string

Throws:

value is not a string
Type
TypeError
too deep nesting
Type
Error

Returns:

Type:: string

setMarker(open, close) → {Formatter}

Set new Marker

Default values for the markers are ${ and }

formatter.setMarker('#'); // open and close are both #
formatter.setMarker('[',']');
formatter.setMarker('i18n{','}');

Set new Marker

Default values for the markers are ${ and }

formatter.setMarker('#'); // open and close are both #
formatter.setMarker('[',']');
formatter.setMarker('i18n{','}');

Parameters:

Name	Type	Description
`open`	array \| string
`close`	array \| string \| undefined

Since: 1.12.0

Throws:

value is not a string
Type TypeError

Returns:

Type:: Formatter

setParameterChars(delimiter, assignment) → {Formatter}

Set new Parameter Character

Default values for the chars are :: and =

formatter.setParameterChars('#');
formatter.setParameterChars('[',']');
formatter.setParameterChars('i18n{','}');

Set new Parameter Character

Default values for the chars are :: and =

formatter.setParameterChars('#');
formatter.setParameterChars('[',']');
formatter.setParameterChars('i18n{','}');

Parameters:

Name	Type	Description
`delimiter`	string
`assignment`	string

Since: 1.24.0

Throws:

value is not a string
Type TypeError

Returns:

Type:: Formatter