On 07/04/2010 07:39 PM, Marco wrote:

Hi,

when there's a mistake in the context code then the context call returns »1«. When there's a mistake in the metapost code then the context call returns »0«.

This is annoying for me, since I use the return value as indicator for my pdf reader to refresh. This seems like a bug to me. Is there a workaround?

Like this maybe, this converts metapost errors into a series of tex errors: \startluacode function report_mplib_error (...) local v = string.format(...) tex.sprint(tex.ctxcatcodes,"\\errmessage{") tex.sprint(tex.vrbcatcodes,v) tex.print(tex.ctxcatcodes,"}") end function metapost.reporterror(result) if not result then report_mplib_error("mp error: no result object returned") elseif result.status > 0 then local t, e, l = result.term, result.error, result.log if t and t ~= "" then report_mplib_error("mp terminal: %s",t) end if e then report_mplib_error("mp error: %s",(e=="" and "?") or e) end if not t and not e and l then metapost.lastlog = metapost.lastlog .. "\n" .. l report_mplib_error("mp log: %s",l) else report_mplib_error("mp error: unknown, no error, terminal or log messages") end else return false end return true end \stopluacode