Re: [NTG-context] Trimming strings and Lua string.trim question

On 3/6/2014 12:00 AM, Rik Kabel wrote:

On 2014-03-05 10:54, Wolfgang Schuster wrote:

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Am 05.03.2014 um 16:18 schrieb Wolfgang Schuster mailto:schuster.wolfgang@gmail.com>:

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Am 05.03.2014 um 16:07 schrieb Rik Kabel mailto:context@rik.users.panix.com>:

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striplong

It would be nice if striplong worked, but the example fails when string.striplong is used in place of string.strip. The log says:

! LuaTeX error [string "\directlua "]:1: attempt to call field 'striplong' (a nil value) stack traceback: [string "\directlua "]:1: in main chunk.

Is the format of the call different than shown in the wiki, or is a different mechanism required to quote a potentially long string?

The name of the function is “strings.striplong”.

This should be “utilities.strings.striplong” but it has no effect because when take a look at the saved string in Lua you can see that blank lines are removed from the text.

Wolfgang

Indeed. This does build without error, but the utilities.strings.striplong result is worse than the string.strip result, with some additional whitespace at the end of the test string from the earlier example.

the definition of 'worse' depends on expectations and given the fact that in tex a newline or two newlines in a row have a different meaning it is just a guess what you want to achieve anyway, the next beta will have local str = table.concat( { " ", " aap", " noot mies", " ", " ", " zus wim jet", "zus wim jet", " zus wim jet", " ", }, "\n") utilities.strings.striplines(str,'prune'): [[aap noot mies zus wim jet zus wim jet zus wim jet]] utilities.strings.striplines(str,'prune and collapse'): [[aap noot mies zus wim jet zus wim jet zus wim jet]] utilities.strings.striplines(str,'prune and no empty'): [[aap noot mies zus wim jet zus wim jet zus wim jet]] utilities.strings.striplines(str,'retain'): [[ aap noot mies zus wim jet zus wim jet zus wim jet ]] utilities.strings.striplines(str,'retain and collapse'): [[ aap noot mies zus wim jet zus wim jet zus wim jet ]] utilities.strings.striplines(str,'retain and no empty'): [[ aap noot mies zus wim jet zus wim jet zus wim jet ]] so you can choose what you like Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------