javascript regular expression not multiple things

The masks for values generated by the Custom String data generator. Patterns to detect dynamic identifiers of web elements. The property values of name mapping templates. The property values of mapped objects (precede the regular expression with the regexp: prefix). Variable parts in a control's captions in calls to methods that simulate user actions.

Variable parts in string properties of the FindXXX methods ( Find, FindChild, FindEx, FindAll and so on) and of the WaitProperty method. The text to find or replace in the script units.

The search string pattern for the aqString.StrMatches and BuiltIn.StrMatches methods. The pattern of string values being verified by property checkpoints (the Property Checkpoint keyword test operation and the aqObject.CheckProperty scripting method). You can use regular expressions to specify: You can use the following trick so that it gets replaced even if it matches or not: (?:Math.Regular expressions are coded strings that define an infinite number of possible matches. Is there any way to do this purely in regex, as this would make the entire process more elegant. I have tried this ^(?!Math.)(log2|log|exp|abs)īut it is quite useless, as this doesn't work with nesting and even multiple operands. What I want to know is, is there some way to match any of these predefined strings (constants and methods) so that they will only be matched via regex if they don't have the 'Math.' part in front of it. But as always that's not very flexible and leaves room for misunderstanding and somebody may coma along and insist on typing Math.log(x) which will in turn be replaced with (x), which won't work.

The way I've done it is using simple regex that basically has a list of all Javascript Math constants and methods and simply prepends the 'Math.' part of it. As you can see, the 'Math.' part of it not only takes longer to write, but makes it less readable. That becomes very tedious when things get nested e.g 'Math.abs(Math.log(Math.pow(x, 2))) + Math.log2(x)'. If the users want to use builtin Javascript mathematical functions, they have to enter the following string e.g. I am making a parser of sorts in javascript that takes a mathematical expression given to the script as a string, and evaluates it and does some other things with it.

Javascript regular expression not multiple things