In interaction web forms, an editor element displays a code editor with syntax highlighting, autocompletion, and a custom toolbar.

start:
  await:
    form:
      title: Editor Example
      elements:
        editor/prompt_query:
          label: Data query:
          syntax: cerb_query
          readonly@bool: no
          default@text:
            type:worklist.records
            of:ticket
            query:(
              status:o
              limit:10
            )
            format:dictionaries

Syntax

label:

The optional label to display above the form element.

syntax:

The language for syntax highlighting and autocompletion.

default:

The default editor text.

line_numbers@bool:

If no, the editor line numbers in the left gutter are hidden. They are enabled by default.

readonly@bool:

If yes, the editor contents may not be modified. Editors are readable by default.

required@bool:

If user input is required on this element use a value of yes. Otherwise, omit.

toolbar:

An optional toolbar to display above the editor. This triggers worker interactions.

Interactions started from this toolbar will have a caller of cerb.toolbar.interaction.worker.await.editor with these caller_params:

validation:

An optional custom validation script. Any output is considered to be an error.

You can use if...elseif to check multiple conditions.

editor/prompt_script:
  label: Script:
  validation@raw:
    {% if prompt_script is empty %}
    A script is required.
    {% elseif prompt_script|length < 25 %}
    A script must be at least 25 characters. 
    {% endif %}