Hi Måns,
It's all a question of what's parsed when. Macros are just a simple text
substitution system. They know nothing about WikiText: the only special
notation they know about is *$param$* and *$(var)$*. And their results are
not parsed as WikiText either, unless they happen to be returned to a
parsed context, such as the surface level of a tiddler. So if you write
*<$widget
attribute=<<m>>/>*, the result of the call to *m* will *not* be treated as
WikiText.
In your case, you're passing the value *[[item one with
{{!!see_fieldvalue}}]] [[item two]]* as a parameter to your *appendButton*
macro, and therefore *that exact string* will be appended to the text of
*SomeTiddler*. The string then finds itself at the surface of a tiddler,
and so it duly gets parsed as WikiText, but by then it's too late: the
*!!field* notation will refer to a field of *SomeTiddler* rather than
*ThisTiddler*.
Setting *tv-wikilinks* to *no* doesn't suppress the *{{…}}* functionality,
but as you say, the string you're dealing with has *{{…}}* inside *[[…]]*,
and the WikiText parser always treats the contents of *[[…]]* literally,
doing no further analysis on it, other than looking for the optional *|*
suffix.
– æ
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