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MRAMBERG / MojoMojo-1.11 / root / forms / user / prefs.yml 
---
load_config_file: __path_to(root/forms/defaults.yml)__

elements:
  - type: Text
    name: login
    label_loc: Login
    filters:
      - HTMLEscape
      - LowerCase
      - TrimEdges
    constraints:
      - Required
      - Word
  - type: Text
    name: name
    label_loc: Name
    filters:
      - HTMLEscape
      - TrimEdges
  - type: Text
    name: email
    label_loc: Email
    filters:
      - HTMLEscape
      - TrimEdges
    constraints:
      - Required
      - Email
  - type: Submit
    name: submit
    value_loc: Save