reterics / lejs

Lionel Embedded JavaScript Templates

Lionel Embedded JavaScript Templates (LeJS)

This repository is dedicated to serving as a platform for practice and training purposes. It should not be used in production environment.

Features

• Unescaped output with {{ }}
• IF statement with {# }} {/# ]]
• Maping objects with {> }} {/> }}

Usage

Node

let template = lejs.compile(str, options);
template(data);
// => Rendered String

lejs.render(str, data, options);
// => Rendered String

lejs.renderFile(filename, data, options);

CLI

.lejs

<p>Hello {{world}}</p>
<ul>
{>li}}
    <li>Index: {{+index}}. {{+value}}</li>
{/>li}}
</ul>
{#details}}
<details>
    {{detail}}
</details>
{/#details}}

JSON data

{
  "world": "World",
  "li": [
    {
      "value": "Line 1"
    },
    {
      "value": "Line 2"
    }
  ],
  "details": true,
  "detail": "This value is visible, because details is true"
}

Output

<p>Hello World</p>
<ul>

    <li>Index: 0. Line 1</li>

    <li>Index: 1. Line 2</li>

</ul>

<details>
    This value is visible, because details is true
</details>

CLI call

node ./dist/bin/cli.js ./test/files/example.lejs -f ./test/files/example.json
# OR
lejs ./test/files/example.lejs -f ./test/files/example.json

Tags

• {{ }} Value output tag
• {# }} IF statement start tag
• {/# }} IF statement end tag
• {> }} MAP start tag
• {{+ }} MAP variable tag
• {/> }} MAP end tag

lejs's Issues

IF parser is not working recursively

Recursive IF statement is not working as expected.

Steps:
test.txt:

{>asd}}
something2
{>asd2}}
something
{/>asd2}}
something3
{/>asd}}

and the CLI: node ./dist/bin/cli.js ./test.txt -i "asd=2&asd2=1"

Output:

something3
{/>asd}}