Mark,
Thanks for checking and commenting on your result that sameday is matching
when the parameter of sameday is one day later. I'm not sure that this is
just a local vs. UTC time issue since the result I posted above was done at
08:09 in UTC-7 and thus 15:09 in UTC, both still on 2017-Jan-06.
I do note that using $view with date format on the string from the tiddler
field did subtract 7 hours from it, even though I intended it to be a local
time. Perhaps this emphasizes Tobias's point #2 that dates should always be
stored as UTC, even when being generated by users or user tiddlers.
Tobias, with respect to your point #5, the reason I believed I should be
able to work directly with dates as strings stored in fields, including
doing regexp filtering on them, is because when I get info on a tiddler
from the drop down menu, it shows the created and modified fields as
date+time in a YYYY0MM0DD0hh0ss... format.
To illustrate the point I'm stuck at in trying to use tiddler fields (such
as my date-journal field) to act as part of a regexp filter parameter (to
be pre-pended with the "^" anchor), I've put the following example code
into a tiddler that has a field named 'date-search' which is equal to
'20160622', a date when some tiddlers in TiddlyWiki version 5.1.13 at
tiddlywiki.com were modified.
\define concat(1,2,3,4,5)
$1$$2$$3$$4$$5$
\end
\define anchorSearchField()
<$macrocall $name=concat 1="^" 2={{!!date-search}} >
\end
\define wikifiedAnchorSearchField()
<$wikify name=wASF text=<<anchorSearchField>> output=text >
<<wASF>>
</$wikify>
\end
THE FOLLOWING SHOWS THAT USING A LITERAL ANCHORED DATE WORKS AS THE regexp
PARAMETER <br>
<$vars dateRegExp="^20160622" >
__List of tiddlers with 'modified' field matching
`"^20160622"`=<<dateRegExp>>__ <br>
<$list filter="[regexp:modified<dateRegExp>]">
<$link><<currentTiddler>></$link> {{!!modified}} <br>
</$list>
</$vars>
THE FOLLOWING SHOWS THAT USING TRANSCLUSION OF THE DATE DOES NOT WORK <br>
<$vars dateRegExp=<<anchorSearchField>> >
__List of tiddlers with 'modified' field matching
`<<anchorSearchField>>`=<<dateRegExp>>__ <br>
<$list filter="[regexp:modified<dateRegExp>]">
<$link><<currentTiddler>></$link> {{!!modified}} <br>
</$list>
</$vars>
... EVEN IF THE MACRO OUTPUT IS WIKIFIED AS SEEN BELOW. <br>
<$vars dateRegExp=<<wikifiedAnchorSearchField>> >
__List of tiddlers with 'modified' field matching
`<<wikifiedAnchorSearchField>>`=<<dateRegExp>>__ <br>
<$list filter="[regexp:modified<dateRegExp>]">
<$link><<currentTiddler>></$link> {{!!modified}} <br>
</$list>
</$vars>
The results of this code are shown below:
ToolsReferencesTaggingListListedFieldsAdvancedSources
created 20170108001700345
date-search 20160622
modified 20170108004923404
tags
title Tiddler to test regexp date selection
<http://tiddlywiki.com/#>7th January 2017 at 5:49pm
THE FOLLOWING SHOWS THAT USING A LITERAL ANCHORED DATE WORKS AS THE regexp
PARAMETER
*List of tiddlers with 'modified' field matching "^20160622"=^20160622*
Generating Static Sites with
<http://tiddlywiki.com/#Generating%20Static%20Sites%20with%20TiddlyWiki>
TiddlyWiki <http://tiddlywiki.com/#TiddlyWiki> Wed Jun 22 2016 05:13:43 GMT-
0600 (Mountain Daylight Time)
<http://tiddlywiki.com/#GettingStarted>GettingStarted
<http://tiddlywiki.com/#GettingStarted> Wed Jun 22 2016 05:13:49 GMT-0600 (
Mountain Daylight Time)
HTML in <http://tiddlywiki.com/#HTML%20in%20WikiText>WikiText
<http://tiddlywiki.com/#WikiText> Wed Jun 22 2016 05:22:59 GMT-0600 (
Mountain Daylight Time)
<http://tiddlywiki.com/#PermaLinks>PermaLinks
<http://tiddlywiki.com/#PermaLinks> Wed Jun 22 2016 05:13:55 GMT-0600 (
Mountain Daylight Time)
Translate
<http://tiddlywiki.com/#Translate%20TiddlyWiki%20into%20your%20language>
TiddlyWiki <http://tiddlywiki.com/#TiddlyWiki> into your language Wed Jun 22
2016 08:14:41 GMT-0600 (Mountain Daylight Time)
THE FOLLOWING SHOWS THAT USING TRANSCLUSION OF THE DATE DOES NOT WORK
*List of tiddlers with 'modified' field matching
<<anchorSearchField>>=^20160622*
... EVEN IF THE MACRO OUTPUT IS WIKIFIED AS SEEN BELOW.
*List of tiddlers with 'modified' field matching
<<wikifiedAnchorSearchField>>= ^20160622 *
I conclude that even if I try to wikify (and thus in my mind fully render)
the transclusion of the {{!!date-search}} reference, I just can't
concatenate the contents of a field with other characters and use the
result as a filter parameter.
Of course, I welcome any suggestions on how to combine the contents of a
field with other constant strings to create filter parameters.
Thanks,
Kevin
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