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On Fri, 11 Jan 2019, Henri Menke wrote:
On 11/01/19 10:26 AM, Aditya Mahajan wrote:
Hi,
I have an XML file (which is generated via a program that I have no control over), which contains elements as follows:
<p> <equation text="$$y_1(t) = 1, t \geq 0$$"> <img alt="$$y_1(t) = 1, t \geq 0$$" class="equation" height="15px" src="Lab01_eq10401623798909303081.png" width="95px"/> </equation> </p>
I want to typeset the `text` attribute of equation (and ignore the <img> tag). So, I tried:
\startxmlsetups matlab % Bunch of missing definitions \xmlsetsetup{#1}{equation}{matlab:*} \stopxmlsetups
\startxmlsetups matlab:equation \xmlatt{#1}{text} \stopxmlsetups
This literally typesets `$$y_1(t) = 1, t \geq 0$$`. How can I flush the attribute using ctxcatcodes? (There is \xmlflushcontent, but that is for content and not attributes).
You could write your own attribute fetcher in Lua. Probably there is a more elegant method.
\startbuffer[test] <p> <equation text="$$y_1(t) = 1, t \geq 0$$"> <img alt="$$y_1(t) = 1, t \geq 0$$" class="equation" height="15px" src="Lab01_eq10401623798909303081.png" width="95px"/> </equation> </p> \stopbuffer
\startxmlsetups matlab % Bunch of missing definitions \xmlsetsetup{#1}{p}{matlab:*} \xmlsetsetup{#1}{equation}{matlab:*} \stopxmlsetups
\startxmlsetups matlab:p \xmlflush{#1} \stopxmlsetups
\startxmlsetups matlab:equation \xmlfunction{#1}{equation} \stopxmlsetups \startluacode local a = "text" local ctxcatcodes = catcodes.numbers.ctxcatcodes
function xml.functions.equation(id) local e = lxml.getid(id) if e then local at = e.at if at then local att = at[a] if att ~= "" then context.sprint(ctxcatcodes,att) end end end end \stopluacode
\xmlregistersetup{matlab}
\starttext \xmlprocessbuffer{test}{test}{} \stoptext
Thanks! Aditya