DCG and phrase/3
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DCG (SWI-Prolog) (Wikipedia)
library(pure_input): Pure Input from files and streams
Reference: Line_count/2 and phrase_from_file
From: Tabled execution (SLG resolution)
Left recursion , a goal calling a variant of itself recursively and thus looping under the normal Prolog SLD resolution is avoided by suspending the variant call and resuming it with answers from the table.
Example with left recursive grammar. Removing left recursion in DCG - Prolog