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-- Copyright 2006-2016 Mitchell mitchell.att.foicica.com. See LICENSE.
-- Ruby on Rails LPeg lexer.
local l = require('lexer')
local token, word_match = l.token, l.word_match
local P, R, S = lpeg.P, lpeg.R, lpeg.S
local table = _G.table
local M = {_NAME = 'rails'}
-- Whitespace
local ws = token(l.WHITESPACE, l.space^1)
-- Functions.
local actionpack = token(l.FUNCTION, word_match{
'before_filter', 'skip_before_filter', 'skip_after_filter', 'after_filter',
'around_filter', 'filter', 'filter_parameter_logging', 'layout',
'require_dependency', 'render', 'render_action', 'render_text', 'render_file',
'render_template', 'render_nothing', 'render_component',
'render_without_layout', 'rescue_from', 'url_for', 'redirect_to',
'redirect_to_path', 'redirect_to_url', 'respond_to', 'helper',
'helper_method', 'model', 'service', 'observer', 'serialize', 'scaffold',
'verify', 'hide_action'
})
local view_helpers = token(l.FUNCTION, word_match{
'check_box', 'content_for', 'error_messages_for', 'form_for', 'fields_for',
'file_field', 'hidden_field', 'image_submit_tag', 'label', 'link_to',
'password_field', 'radio_button', 'submit', 'text_field', 'text_area'
})
local activerecord = token(l.FUNCTION, word_match{
'after_create', 'after_destroy', 'after_save', 'after_update',
'after_validation', 'after_validation_on_create',
'after_validation_on_update', 'before_create', 'before_destroy',
'before_save', 'before_update', 'before_validation',
'before_validation_on_create', 'before_validation_on_update', 'composed_of',
'belongs_to', 'has_one', 'has_many', 'has_and_belongs_to_many', 'validate',
'validates', 'validate_on_create', 'validates_numericality_of',
'validate_on_update', 'validates_acceptance_of', 'validates_associated',
'validates_confirmation_of', 'validates_each', 'validates_format_of',
'validates_inclusion_of', 'validates_exclusion_of', 'validates_length_of',
'validates_presence_of', 'validates_size_of', 'validates_uniqueness_of',
'attr_protected', 'attr_accessible', 'attr_readonly',
'accepts_nested_attributes_for', 'default_scope', 'scope'
})
local active_support = token(l.FUNCTION, word_match{
'alias_method_chain', 'alias_attribute', 'delegate', 'cattr_accessor',
'mattr_accessor', 'returning', 'memoize'
})
-- Extend Ruby lexer to include Rails methods.
local ruby = l.load('ruby')
local _rules = ruby._rules
_rules[1] = {'whitespace', ws}
table.insert(_rules, 3, {'actionpack', actionpack})
table.insert(_rules, 4, {'view_helpers', view_helpers})
table.insert(_rules, 5, {'activerecord', activerecord})
table.insert(_rules, 6, {'active_support', active_support})
M._rules = _rules
M._foldsymbols = ruby._foldsymbols
return M
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