ref: a28464d95d9797aa15925dac3ca7a890b9835b5a
dir: /lib/regex/types.myr/
use std pkg regex = type status = union `Noimpl `Incomplete `Unbalanced char `Emptyparen `Badrep char `Badrange byte[:] `Badescape char ;; type regex = struct /* compile state */ debug : bool trace : bool pat : byte[:] idx : std.size nmatch : std.size /* VM state */ runq : rethread# expired : rethread# expiredtail : rethread# free : rethread# nfree : std.size proglen : std.size prog : reinst[:] code : recode[:] nthr : std.size str : byte[:] strp : std.size nexttid : std.size /* debug state */ astloc : std.htab(ast#, std.size)# traces : std.bitset#[:] pcidx : std.size[:] lastip : std.size lastthr : std.size ;; type ast = union /* basic string building */ `Alt (ast#, ast#) `Cat (ast#, ast#) /* repetition */ `Star (ast#, bool) `Plus (ast#, bool) `Quest ast# /* end matches */ `Chr char `Ranges char[2][:] /* meta */ `Cap (std.size, ast#) /* id, ast */ `Bol /* beginning of line */ `Eol /* end of line */ `Bow /* beginning of word */ `Eow /* end of word */ ;; pkglocal type rethread = struct next : rethread# /* run queue link */ tid : std.size /* just for debugging */ ip : std.size /* the instruction pointer */ dead : bool /* thread died */ matched : bool /* thread matched */ mgroup : std.size[2][16] /* match starts */ ;; pkglocal type recode = uint64 /* can have at most up to 0xf ops */ const OpByte : recode = 0x0 const OpRange : recode = 0x1 const OpLbra : recode = 0x2 const OpRbra : recode = 0x3 const OpBol : recode = 0x4 const OpEol : recode = 0x5 const OpBow : recode = 0x6 const OpEow : recode = 0x7 const OpFork : recode = 0x8 const OpJmp : recode = 0x9 const OpMatch : recode = 0xa pkglocal type reinst = union /* direct consumers */ `Ibyte byte `Irange (byte, byte) /* groups */ `Ilbra std.size `Irbra std.size /* anchors */ `Ibol `Ieol `Ibow `Ieow /* control flow */ `Ifork (std.size, std.size) `Ijmp std.size `Imatch std.size ;; ;;