Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I want to parse a filter string similar to the following:
((Field1 = 'red') and (field2 = 2)) or (Field3 between 1 and 5) or (field4 in ['up', 'down'])
I’d like to use the TParser in the Classes unit, but there does not seem to be much documentation or examples on it.
TParser is used by IDE to parse DFM files into a binary format (ObjectTextToBinary). To my knowledge it only recognizes 5 tokens: (EOF, Symbol, String, Integer, Float). It is not general enough, but built for a special purpose. You would have to subclass it and change it’s implementation for your needs. My opinion is that it’s better to just write your own class/automata for your specific purpose. (It’s not even a parser but a lexical tokeniser).