0 votes 0 votes why top down parser uses left most derivation? is it mandatory or we can change it by modifying the algo? Compiler Design compiler-design parsing descriptive + – bunty choudhary asked Feb 9, 2018 • retagged Jun 21, 2022 by Lakshman Bhaiya bunty choudhary 459 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
1 votes 1 votes You can start from left (top down) or from right.From right it will be reverse of rightmost derivation,which is bottom up parser. If we can change the algorithm , maybe its starts from middle (say).The complexity of code will increase. Angkit answered Feb 10, 2018 Angkit comment Share Follow See all 0 reply Please log in or register to add a comment.