On 4 feb. 2013, at 19:13, Aditya Mahajan <adit...@umich.edu>
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
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