code wiki / _hdl_build / nx_imgbook_promote.nx

nx_imgbook_promote.nx

buildroot/runtime/_hdl_build/nx_imgbook_promote.nx

12086 B276 linesdepth 2pulls 2 transitivereach 0 importersview sourcekind tool

docs dependencies structs consts functions

about

nx_imgbook_promote.nx -- promote an ALREADY-EXTRACTED image-dominant book to the CBX/zoom viewer. GROUND TRUTH driving this organ (operator slug ba4e3a12c8d2091): a Kindle/EPUB COMIC extracts as ~190 full-res JPEGs + ~190 text "chapters" of 33-215 BYTES each (image-anchor stubs). The text reader then shows 190 empty chapters = "the book doesn't load". The images are ALREADY on disk -- no re-extraction needed. This organ inspects reader/<slug>/, and IF the book is image-dominant (>= IB_MIN_IMAGES real image files AND avg chapter text < IB_MAX_AVG_CHAP bytes), writes cbx.json (natural-sorted pages, "cfix":2) so /api/open routes it to the ZOOM viewer. A text book is left untouched (exit 2). Idempotent: re-running overwrites the same cbx.json. argv: nx_imgbook_promote <bookpath-ignored> <slug> (matches ms_run_extractor's <path> <slug> shape) exit: 0 promoted (cbx.json written) | 2 not an image-book (honest skip) | 1 error license_tier: ORIGINAL

dependencies 1 imports · 0 importers

imports: nx_syscalls.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

15	const IB_MAGIC_1048576: i64 = 1048576
16	const IB_MAGIC_65536: i64 = 65536
17	const IB_MAGIC_1024: i64 = 1024
18	const IB_MAGIC_999999: i64 = 999999
20	const IB_MIN_IMAGES: i64 = 8 // fewer real images than this = a text book with plates, not a comic
21	const IB_MAX_AVG_CHAP: i64 = 300 // avg chapter bytes at/under this = image-anchor stubs, not prose
149	const IB_ECAP: i64 = 4096

functions

23	func ib_slen(s: *u8) -> i64 { var n: i64=0; while s[n]!=(0 as u8){n=n+1} return n } called by 5: ib_w ib_is_image ib_is_derived ib_is_chap main
24	func ib_w(fd: i64, s: *u8) -> i64 { sys_write(fd, s, ib_slen(s)); return 0 } called by 2: ib_p main calls 2: sys_write ib_slen
25	func ib_n(fd: i64, v: i64) -> i64 { let bb: u8=sys_mmap(28); var m: i64=v; if m<0{m=0-m;sys_write(fd,"-" as u8,1)}; let t: *u8=sys_mmap(28); var k: i64=0; if m==0{t[0]=48 as u8;k=1}; while m>0{t[k]=(48+(m%10)) as u8;m=m/10;k=k+1}; var i: i64=0; while i<k{bb[i]=t[k-1-i];i=i+1}; sys_write(fd,bb,k); return 0 } called by 2: ib_pn main calls 2: sys_mmap sys_write
26	func ib_p(s: *u8) -> i64 { ib_w(1, s); return 0 } called by 1: main calls 1: ib_w
27	func ib_pn(v: i64) -> i64 { ib_n(1, v); return 0 } called by 1: main calls 1: ib_n
28	func ib_cat(dst: u8, off: i64, s: u8) -> i64 { var i: i64=0; while s[i]!=(0 as u8){dst[off+i]=s[i];i=i+1} return off+i } called by 1: main
30	func ib_lc(c: i64) -> i64 { if c >= 65 { if c <= 90 { return c + 32 } } return c } called by 2: ib_is_image name_cmp_nat
33	func ib_is_image(name: *u8) -> i64 called by 1: main calls 2: ib_slen ib_lc
52	func ib_is_derived(name: *u8) -> i64 called by 1: main calls 1: ib_slen
62	func ib_is_chap(name: *u8) -> i64 called by 1: main calls 1: ib_slen
77	func ib_fsize(path: *u8) -> i64 called by 1: main calls 2: sys_mmap sys_fstatat
84	func nat_digits(s: *u8, o: i64) -> i64 called by 1: name_cmp_nat
97	func name_cmp_nat(a: u8, b: u8) -> i64 called by 1: main calls 2: nat_digits ib_lc
151	func main(argc: i64, argv: *i64) -> i64 calls 19: ib_p sys_exit sys_mmap ib_cat sys_openat_rd ib_w+13