2. The system of claim 1 , wherein the at least one processor is further configured by the set of instructions to perform the following operation as part of the execution: communicate, by the first handler, as an input string to a second handler, the input string to the parsing pipeline, if the current input string to the parsing pipeline does not match a regular expression specified for the first handler in the parser definition.
2. The system of claim 1 , wherein the at least one processor is further configured by the set of instructions to perform the following operation as part of the execution: communicate, by the first handler, as an input string to a second handler, the input string to the parsing pipeline, if the current input string to the parsing pipeline does not match a regular expression specified for the first handler in the parser definition. 3. The system of claim 2 , wherein the at least one processor is further configured by the set of instructions to perform the following operations as part of the execution: generate a third string, by the second handler, based in part on the input string to second handler, if the input string to second handler matches a regular expression specified for the second handler in the parser definition; and input the third string, by the second handler, as an input to another handler, if the input string to second handler matches a regular expression specified for the second handler in the parser definition.