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文件: /opt/puppetlabs/puppet/lib/ruby/vendor_ruby/puppet/pops/patterns.rb
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# frozen_string_literal: true # The Patterns module contains common regular expression patters for the Puppet DSL language module Puppet::Pops::Patterns # NUMERIC matches hex, octal, decimal, and floating point and captures several parts # 0 = entire matched number, leading and trailing whitespace and sign included # 1 = sign, +, - or nothing # 2 = entire numeric part # 3 = hexadecimal number # 4 = non hex integer portion, possibly with leading 0 (octal) # 5 = floating point part, starts with ".", decimals and optional exponent # # Thus, a hex number has group 3 value, an octal value has group 4 (if it starts with 0), and no group 3 # and a floating point value has group 4 and group 5. # NUMERIC = /\A[[:blank:]]*([-+]?)[[:blank:]]*((0[xX][0-9A-Fa-f]+)|(0?\d+)((?:\.\d+)?(?:[eE]-?\d+)?))[[:blank:]]*\z/ # Special expression that tests if there is whitespace between sign and number. The expression is used # to strip such whitespace when normal Float or Integer conversion fails. WS_BETWEEN_SIGN_AND_NUMBER = /\A([+-])[[:blank:]]+(.*)\z/ # ILLEGAL_P3_1_HOSTNAME matches if a hostname contains illegal characters. # This check does not prevent pathological names like 'a....b', '.....', "---". etc. ILLEGAL_HOSTNAME_CHARS = /[^-\w.]/ # NAME matches a name the same way as the lexer. NAME = /\A((::)?[a-z]\w*)(::[a-z]\w*)*\z/ # CLASSREF_EXT matches a class reference the same way as the lexer - i.e. the external source form # where each part must start with a capital letter A-Z. # CLASSREF_EXT = /\A((::){0,1}[A-Z]\w*)+\z/ # Same as CLASSREF_EXT but cannot start with '::' # CLASSREF_EXT_DECL = /\A[A-Z]\w*(?:::[A-Z]\w*)*\z/ # CLASSREF matches a class reference the way it is represented internally in the # model (i.e. in lower case). # CLASSREF = /\A((::){0,1}[a-z]\w*)+\z/ # Same as CLASSREF but cannot start with '::' # CLASSREF_DECL = /\A[a-z]\w*(?:::[a-z]\w*)*\z/ # DOLLAR_VAR matches a variable name including the initial $ character DOLLAR_VAR = /\$(::)?(\w+::)*\w+/ # VAR_NAME matches the name part of a variable (The $ character is not included) # Note, that only the final segment may start with an underscore. # Note, regexp sensitive to backtracking VAR_NAME = /\A(?:::)?(?:[a-z]\w*::)*[a-z_]\w*\z/ # PARAM_NAME matches the name part of a parameter (The $ character is not included) PARAM_NAME = /\A[a-z_]\w*\z/ # A Numeric var name must be the decimal number 0, or a decimal number not starting with 0 NUMERIC_VAR_NAME = /\A(?:0|(?:[1-9][0-9]*))\z/ end
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