On 7/15/2022 3:06 PM, 黄复雄 via ntg-context wrote:

I mistakenly sent the following letter to luatex@tug.org mailto:luatex@tug.org yesterday. I hope it won't cause anyone any trouble. Thanks to luigi for pointing out the error. -------------------------------------------------

Hi all, I just updated my ConTeXt to

system          > ConTeXt  ver: 2022.07.06 21:42 LMTX  fmt: 2022.7.12  int: english/english

yesterday and got a error message in using tex.linebreak(head)  as follow:

luatex warning  > linebreak: no [ leftinit | rightinit | leftfill | rigthfill] expected

I can't get any information about them. The head and the list going to tex.linebreak() like:

the linbebreak routine expects:

  2873 : par vmodepar>   2879 : glue indentskip>

<parinitleftskip> <parinitrightskip>

  2891 : glyph unset>   2897 : glue userskip> ...    639 : glyph unset>   3089 : kern userkern>   2334 : glue userskip>   3095 : rule normal>   3101 : glue spaceskip>    642 : glue spaceskip>   3107 : penalty userpenalty>    nil : glue userskip>

<infinite penalty> <parfillleftskip> <parfillrightskip>

My question is: Which of them is necessary, and How can I node.new() one and Where should it go in the list?

Any hint would be appreciated,

the next upload will have a prepare helper print("=====================================================") local h = nodes.copylist(head) tex.preparelinebreak(h) local n = tex.linebreak(h) nodes.flushlist(n) print("=====================================================") the luametatex par builder is a bit nore advanced than the luatex one as it offers more features for which it also needs s few more nodes in the list; it could work without but then its also doesn't honor some parameters which then would raise questions; so we're more picky instead (the resulting line boxes are also somewhat different) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------