On 4 feb. 2013, at 19:13, Aditya Mahajan wrote:

On Mon, 4 Feb 2013, H. van der Meer wrote:

...

The following worked without a hitch:

\def\IsNilReturn#1{\edef\tmp{#1}\doifelse{\tmp}{nil}{\color[red]{ERROR}}{\tmp}} \def\formatDuration#1{\ctxlua{ local s = string.gsub("#1","\%D","") local d = tostring(hvdm.time:match(s)) tex.print(string.sub(d,1,2) ~= "0:" and d or string.sub(d,3)) }} \def\FormatDuration#1{\IsNilReturn{\formatDuration{#1}}} Called by something like \FormatDuration{11929} (meaning: 1 hour 19 minutes 29 seconds)

Now I get an error in ConTeXt ver: 2013.01.27 21:24 MKIV fmt: 2013.1.28 int: english/english ! LuaTeX error [string "\directlua "]:1: invalid escape sequence near '\%'. \formatDuration ...0:" and d or string.sub(d,3)) } \IsNilReturn #1->\edef \tmp {#1 }\doifelse {\tmp }{nil}{\color [red]{ERROR}}{...

Whereas in a previous Context all went well: ConTeXt ver: 2012.05.30 11:26 MKIV fmt: 2013.2.4 int: english/english

What did change? Why? And how to repair?

I noticed something similar a few days ago. IIRC, using \letterpercent still works (untested).

Aditya

No, that is not the solution. Maybe because the % has to function in a Lua gsub as match pattern. I tried dropping the backslash, not \%D but using %D. Then the error is: ! LuaTeX error [string "\directlua "]:1: ')' expected near '0'. \formatDuration ...0:" and d or string.sub(d,3)) } \IsNilReturn #1->\edef \tmp {#1 }\doifelse {\tmp }{nil}{\color [red]{ERROR}}{... More ideas? Hans van der Meer

Am 04.02.2013 um 20:12 schrieb Wolfgang Schuster :

Am 04.02.2013 um 19:26 schrieb "Meer H. van der" :

...

More ideas?

Move the Lua code to a luacode block or a external and use TeX only to access the function.

^^^^ file Wolfgang