code wiki / _hdl_build / nx_regex_unified_gate.nx

nx_regex_unified_gate.nx

buildroot/runtime/_hdl_build/nx_regex_unified_gate.nx

6146 B69 linesdepth 3pulls 3 transitivereach 0 importersview sourcekind gate/prooftopic regex
docsdependenciesstructsconstsfunctions

about

nx_regex_unified_gate.nx -- GATE: the UNIFIED linear-time regex engine (nx_regex_vm_lib) is a STRICT SUPERSET of BOTH old engines and drives grep. Proves: (T1) every atom-NFA feature works (literal/./*+?/[]ranges/^/$ anchors); (T2) PLUS alternation | and groups () that the atom-NFA could NOT do; (T3) the UNIFICATION payoff -- anchors COMBINED with alternation/groups (^(cat|dog)$), which NEITHER old engine could express; (T4) ReDoS-immune (linear on the classic blowup); (T5) grep runs on it -- ReDoS-immune, full-regex line grep (beats backtracking grep/PCRE); (T6) malformed pattern fails-loud. This consolidates two engines into one SOTA engine. expect_exit: 0

dependencies 2 imports · 0 importers

nx_syscalls.nx nx_regex_vm_lib.nx nx_regex_unified_gate.nx

imports: nx_syscalls.nxnx_regex_vm_lib.nx

imported by: nobody (leaf or entry point)

call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown

main g_puts sys_write m re_vm_run rv_slen sys_mmap re2post sys_mmap ↻ cs_set post2nfa sys_mmap ↻ addstate addstate ↻ cs_match ck g_puts ↻ g_pn sys_mmap ↻ sys_write ↻ re_vm_grep_count re_vm_run ↻ sys_openat_append sys_write ↻ sys_close sys_exit

structs

none

consts

none

functions

10func g_puts(s: *u8) -> i64 { var n: i64=0; while s[n]!=(0 as u8){n=n+1} sys_write(1,s,n); return 0 }
called by 2: ckmain calls 1: sys_write
11func g_pn(v: i64) -> i64 { let b: *u8=sys_mmap(28); var x: i64=v; if x<0{b[0]=45;sys_write(1,b,1);x=0-x} if x==0{b[0]=48;sys_write(1,b,1);return 0} var d: i64=0; var y: i64=x; while y>0{d=d+1;y=y/10} var i: i64=d-1; y=x; while i>=0{b[i]=(48+(y%10)) as u8;y=y/10;i=i-1} sys_write(1,b,d); return 0 }
called by 1: main calls 2: sys_mmapsys_write
12func ck(name: *u8, c: i64) -> i64 { if c==1 { g_puts(" PASS " as *u8) } else { g_puts(" FAIL " as *u8) } g_puts(name); g_puts("\n" as *u8); return c }
called by 1: main calls 1: g_puts
13func m(pat: *u8, text: *u8, n: i64) -> i64 { return re_vm_run(pat, text, n) }
called by 1: main calls 1: re_vm_run
15func main() -> i64