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# Author:: Eric Crane (mailto:eric.crane@mac.com)
# Copyright:: Copyright (c) 2019 Eric Crane. All rights reserved.
#
# Run a script.
# Shortcut for telling a script to run.
#
module GlooLang
module Verbs
class Run < GlooLang::Core::Verb
KEYWORD = 'run'.freeze
KEYWORD_SHORT = 'r'.freeze
EVALUATE_RUN = '~>'.freeze
MISSING_EXPR_ERR = 'Missing Expression!'.freeze
#
# Run the verb.
#
def run
if @tokens.token_count < 2
@engine.err MISSING_EXPR_ERR
return
end
if @tokens.second == EVALUATE_RUN
run_expression
else
run_script
end
end
#
# Get the Verb's keyword.
#
def self.keyword
return KEYWORD
end
#
# Get the Verb's keyword shortcut.
#
def self.keyword_shortcut
return KEYWORD_SHORT
end
# ---------------------------------------------------------------------
# Private functions
# ---------------------------------------------------------------------
private
#
# Run a script specified by pathname
#
def run_script
GlooLang::Exec::Runner.run( @engine, @tokens.second )
end
#
# Evaluate an expression and run that.
#
def run_expression
unless @tokens.token_count > 2
@engine.err MISSING_EXPR_ERR
return
end
expr = GlooLang::Expr::Expression.new( @engine, @tokens.params[ 1..-1 ] )
@engine.parser.run expr.evaluate
end
end
end
end
Version data entries
23 entries across 23 versions & 1 rubygems