code wiki / _hdl_build / _pdf_to_text_authored.nx
_pdf_to_text_authored.nx
buildroot/runtime/_hdl_build/_pdf_to_text_authored.nx
about
AUTHORED BY THE NISHI BUILDER (pdf-to-text chain) -- real compressed PDF -> readable text, bits-up
dependencies 1 imports · 0 importers
imports: _inflate_lib_authored.nx
imported by: nobody (leaf or entry point)
call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown
structs
| none |
consts
| none |
functions
| 3 | func psub(buf: *u8, n: i64, from: i64, needle: *u8, nl: i64) -> i64 { var i: i64=from; while i+nl<=n { var ok: i64=1; var j: i64=0; while j<nl { if buf[i+j]!=needle[j] { ok=0; j=nl } else { j=j+1 } } if ok==1 { return i } i=i+1 } return 0-1 } |
| 4 | func pdf_extract(pdf: *u8, pl: i64, out: *u8) -> i64 { let s: i64=psub(pdf,pl,0,"stream" as *u8,6); if s<0 { return 0-1 } var ds: i64=s+6; if pdf[ds]==0x0d as u8 { ds=ds+1 } if pdf[ds]==0x0a as u8 { ds=ds+1 } let e: i64=psub(pdf,pl,ds,"endstream" as *u8,9); if e<0 { return 0-1 } var de: i64=e; if de>ds { if pdf[de-1]==0x0a as u8 { de=de-1 } } if de>ds { if pdf[de-1]==0x0d as u8 { de=de-1 } } return inflate(((pdf as i64)+ds+2) as *u8, de-ds-2, out) } |
| 5 | func pdf_text(s: *u8, sl: i64, out: *u8) -> i64 { var op: i64=0; var i: i64=0; while i<sl { if s[i]==0x28 as u8 { i=i+1; var instr: i64=1; while instr==1 { if i>=sl { instr=0 } else { if s[i]==0x5c as u8 { i=i+1; if i<sl { out[op]=s[i]; op=op+1; i=i+1 } } else { if s[i]==0x29 as u8 { instr=0; i=i+1 } else { out[op]=s[i]; op=op+1; i=i+1 } } } } } else { i=i+1 } } return op } called by 1: pdf_to_text |
| 6 | func pdf_to_text(pdf: *u8, pl: i64, out: *u8) -> i64 { let mid: *u8=sys_mmap(65536); let sn: i64=pdf_extract(pdf,pl,mid); if sn<0 { return 0-1 } return pdf_text(mid,sn,out) } |
| 7 | func main() -> i64 |