Engine

Fields

pattern: string

program: Program

reverse: Program

forward: Dfa

backward: Dfa

onepass: OnePass

the one-pass capture table, if the pattern has one (onepass.ok)

fixed_length: := -1

every match is this many bytes long: no need to look for the start

pool: *Memory_Pool.Pool

holds the parse tree, the programs and this struct; null for an engine built at compile time

origin: *Engine

Clones (clone) copy the programs and the one-pass table by value, which shares what they point to, and have DFAs of their own.

refs: s64

on the origin: the origin itself plus its live clones; the last one to be freed releases the pool

frozen: bool

built at compile time: both DFAs are complete and the programs are constants