luigi, When I started exploring how to map equation references (eq:name) to equation numbers (4.2), I noticed that the 'tuc' file included the equation reference (eq:name), but I was not able to identify anywhere where it indicates the actual equation label specified in the document. Below is an example of the tuc output. 'eq:DVOL_RVI_17' is equation (4.28) in the document: { ["metadata"]=142, ["numberdata"]=237, ["prefixdata"]=11, ["references"]={ ["block"]="bodypart", ["internal"]=122, ["realpage"]=47, ["reference"]="eq:DVOL_RVI_17", ["section"]=79, }, } There is nowhere in the tuc file that contains 4 and 28 near each other. I checked this for other equations as well and concluded that the tuc file does not contain the actual equation numbers that are used. If I am missing something or you have any other suggestions that might help me to extract this info, I would sure appreciate the help. -Lance P.S. Thanks for the tip on using 'context --make' to rebuild the files. I figured this out by guesswork before I got your response, but I have appreciated how helpful many of you have been on this list. ------ On Fri, Jun 7, 2013 at 3:00 PM, Lance Larsen wrote:

If I modify a core lua file how do I remake the format file? Is this something that is done from mtxrun.exe? I would certainly prefer to use a hook rather than modifying a core file, but how do I identify the hooks that are available? Is there a list of hooks that are available, or a standard way that hooks are called from the context code so that I can look for an appropriate hook? Where do I place my hook scripts? Is there a guide that is available that might get me started?

What I trying to do is map equation references to the equation number generated by context. So for example, if I have an equation:

\placeformula \startformula \NC F = m a \NC \NR[eq:newtonslaw] \stopformula

\usemodule[newmath] \setupformulas[way=bytext,prefix=no] \setupsubformulas[conversion=romannumerals] \starttext \placenamedformula[eq:TEST]{Der einfache Test} \startformula c^2 = a^2 + b^2. \stopformula \stoptext and look into the tuc file (it's a lua file) -- luigi