Module: Ace::Core::Atoms::TemplateParser

Defined in:
lib/ace/core/atoms/template_parser.rb

Overview

Pure template parsing functions for context configurations

Constant Summary collapse

VALID_KEYS =

Valid template configuration keys

%w[
  files commands format embed_document_source
  include exclude output max_lines max_size timeout
].freeze

Class Method Summary collapse

Class Method Details

.extract_from_agent(content) ⇒ Hash?

Extract configuration from agent markdown files

Parameters:

  • content (String) —

    Agent markdown content

Returns:

  • (Hash, nil) —

    Extracted configuration or nil



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# File 'lib/ace/core/atoms/template_parser.rb', line 59

def extract_from_agent(content)
  return nil if content.nil?

  # Look for Context Definition section
  context_match = content.match(/^## Context Definition\s*\n(.*?)(?=^## |\z)/m)
  return nil unless context_match

  context_section = context_match[1].strip

  # Extract YAML from code block
  yaml_match = context_section.match(/```(?:yaml|yml)?\s*\n(.*?)\n```/m)
  return nil unless yaml_match

  yaml_content = yaml_match[1]
  parse_yaml(yaml_content)
end

.extract_from_markdown(content) ⇒ Hash?

Extract configuration from markdown with <context-tool-config> tags

Parameters:

  • content (String) —

    Markdown content

Returns:

  • (Hash, nil) —

    Extracted configuration or nil



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# File 'lib/ace/core/atoms/template_parser.rb', line 43

def extract_from_markdown(content)
  return nil if content.nil?

  # Look for <context-tool-config> block
  pattern = /<context-tool-config>\s*\n(.*?)\n<\/context-tool-config>/m
  match = content.match(pattern)

  return nil unless match

  yaml_content = match[1]
  parse_yaml(yaml_content)
end

.merge_configs(*configs) ⇒ Hash

Merge multiple configurations

Parameters:

  • configs (Array<Hash>) —

    Configurations to merge

Returns:

  • (Hash) —

    Merged configuration



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# File 'lib/ace/core/atoms/template_parser.rb', line 157

def merge_configs(*configs)
  configs = configs.flatten.compact

  return {} if configs.empty?

  result = {
    "files" => [],
    "commands" => [],
    "include" => [],
    "exclude" => []
  }

  configs.each do |config|
    next unless config.is_a?(Hash)

    # Concatenate arrays
    %w[files commands include exclude].each do |key|
      result[key].concat(to_array(config[key]))
    end

    # Take last non-nil value for other keys
    %w[format embed_document_source output max_lines max_size timeout].each do |key|
      result[key] = config[key] if config.key?(key)
    end
  end

  # Remove duplicates from arrays
  %w[files commands include exclude].each do |key|
    result[key].uniq!
  end

  result.compact
end

.normalize_config(config) ⇒ Hash

Normalize configuration values

Parameters:

  • config (Hash) —

    Configuration to normalize

Returns:

  • (Hash) —

    Normalized configuration



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# File 'lib/ace/core/atoms/template_parser.rb', line 123

def normalize_config(config)
  {
    "files" => to_array(config["files"]),
    "commands" => to_array(config["commands"]),
    "include" => to_array(config["include"]),
    "exclude" => to_array(config["exclude"]),
    "format" => config["format"],
    "embed_document_source" => config["embed_document_source"],
    "output" => config["output"],
    "max_lines" => config["max_lines"],
    "max_size" => config["max_size"],
    "timeout" => config["timeout"]
  }.compact
end

.parse(content) ⇒ Hash

Parse template configuration from string

Parameters:

  • content (String) —

    Template content (YAML or markdown with embedded YAML)

Returns:

  • (Hash) —

    Boolean, config: Hash, error: String



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# File 'lib/ace/core/atoms/template_parser.rb', line 21

def parse(content)
  return {success: false, error: "Content cannot be nil"} if content.nil?
  return {success: false, error: "Content cannot be empty"} if content.strip.empty?

  # Try to extract from markdown with tags first
  config = extract_from_markdown(content)

  # If not found, try to parse as direct YAML
  config ||= parse_yaml(content)

  if config.nil?
    return {success: false, error: "No valid configuration found"}
  end

  validate_config(config)
rescue => e
  {success: false, error: "Failed to parse template: #{e.message}"}
end

.parse_yaml(yaml_string) ⇒ Hash?

Parse YAML string to hash

Parameters:

  • yaml_string (String) —

    YAML content

Returns:

  • (Hash, nil) —

    Parsed configuration or nil



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# File 'lib/ace/core/atoms/template_parser.rb', line 79

def parse_yaml(yaml_string)
  return nil if yaml_string.nil? || yaml_string.strip.empty?

  result = YAML.safe_load(yaml_string, permitted_classes: [Symbol])

  # Ensure it's a hash
  result.is_a?(Hash) ? stringify_keys(result) : nil
rescue Psych::SyntaxError
  nil
end

.stringify_keys(hash) ⇒ Object 



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# File 'lib/ace/core/atoms/template_parser.rb', line 212

def stringify_keys(hash)
  return hash unless hash.is_a?(Hash)

  hash.each_with_object({}) do |(key, value), result|
    result[key.to_s] = value.is_a?(Hash) ? stringify_keys(value) : value
  end
end

.template?(content) ⇒ Boolean

Check if content appears to be a template

Parameters:

  • content (String) —

    Content to check

Returns:

  • (Boolean) —

    true if content looks like a template



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# File 'lib/ace/core/atoms/template_parser.rb', line 194

def template?(content)
  return false if content.nil?

  # Check for various template indicators
  content.include?("<context-tool-config>") ||
    content.match?(/^files:\s*$/m) ||
    content.match?(/^commands:\s*$/m) ||
    content.match?(/^include:\s*$/m) ||
    content.match?(/^## Context Definition/m)
end

.to_array(value) ⇒ Array

Convert value to array

Parameters:

  • value (nil, String, Array) —

    Value to convert

Returns:

  • (Array) —

    Array of strings



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# File 'lib/ace/core/atoms/template_parser.rb', line 141

def to_array(value)
  case value
  when nil
    []
  when Array
    value.map(&:to_s)
  when String
    [value]
  else
    [value.to_s]
  end
end

.validate_config(config) ⇒ Hash

Validate configuration structure

Parameters:

  • config (Hash) —

    Configuration to validate

Returns:

  • (Hash) —

    Boolean, config: Hash, error: String



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# File 'lib/ace/core/atoms/template_parser.rb', line 93

def validate_config(config)
  return {success: false, error: "Config must be a Hash"} unless config.is_a?(Hash)

  # Check for unknown keys
  unknown_keys = config.keys - VALID_KEYS
  unless unknown_keys.empty?
    return {
      success: false,
      error: "Unknown configuration keys: #{unknown_keys.join(", ")}"
    }
  end

  # Normalize arrays
  normalized = normalize_config(config)

  # Validate required content
  if normalized["files"].empty? && normalized["commands"].empty? &&
      normalized["include"].empty?
    return {
      success: false,
      error: "Configuration must specify 'files', 'commands', or 'include'"
    }
  end

  {success: true, config: normalized}
end