Regex/ARM/Template_Expression.regex.txt
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# Matches an Expression in an Azure Resource Manager Template \s{0,} # Match optional whitespace, \[ # then match the opening bracket, (?<Function>\S{1,}) # then match topmost function name. (?<Parameters>\( # This will be followed by parenthesis. # Will want want to match within balanced parenthesis. (?> # This is called a 'balancing group'. # We need it so that we don't end the match too early [^\(\)]+ # If it is not a parenthesis, match | \((?<Depth>) # If it is a parenthesis, increment ?<Depth> | \)(?<-Depth>) # If it is a closing parenthesis, decrement ?<Depth> )*(?(Depth)(?!)) # Match until there is no depth. \)) # Then match the closing parenthesis (?<Index>\[\d{1,}\]){0,1} # We could also have an an [index] (?<Property>\. # Or a .property with a potential [index] (?<PropertyName> # The name of the property [^\.\[\]\s]{1,} # is anything but .,[, and whitespace ){1,1} (?<PropertyIndex>\[\d{1,}\]){0,1} # and it can be followed by an optional [propertyindex] ){0,} # We can have a sequence of .property[index], so repeat as required. \] # The match the closing bracket \s{0,} # and any optional whitespace |