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Markermd Validation Rule

markermd_rule.Rd

S7 class representing a single validation rule for template questions. This class provides built-in validation for all rule properties and ensures consistency across the application.

Usage

markermd_rule(node_type = character(0), verb = character(0), values = NULL)

Arguments

node_type

Character vector. One or more AST node types this rule applies to, combined as a logical OR. Each must be one of the values returned by get_allowed_node_types().

verb

Character. The validation verb/action to perform. Must be one of the values returned by get_allowed_rule_verbs().

values

Vector. The values/parameters for the validation. Type and format depend on the verb:

  • "has between": numeric vector of length 2 (min, max)

  • "has at least": integer (minimum count)

  • "has at most": integer (maximum count)

  • "has content": character string (pattern)

  • "lacks content": character string (pattern)

  • "has name": character string (pattern)

Examples

# Create a count rule
count_rule = markermd_rule(
  node_type = "Heading",
  verb = "has between",
  values = c(1, 5)
)

# Create a content rule
content_rule = markermd_rule(
  node_type = "Chunk",
  verb = "has content",
  values = "*plot*"
)

# Validate a rule
validation = validate_markermd_rule(count_rule)
if (!validation$valid) {
  print(validation$errors)
}