Tones, Thanks for your reply. I am not averse to learning about filters in fact as I go along I'm getting much better at them.
I was just frustrated at the poor documentation of how to do simple concatenation or arithmetic. The examples assume a higher level of familiarity with the subject than I currently possess. The issue for me is how to relate my problem to a filter based solution. Hopefully your reply as with others will give me greater insight. Bobj --------------- Dr Bob Jansen The Cultural Conversations project Turtle Lane Studios Pty Ltd trading as the Australian Centre for Oral History 122 Cameron St, Rockdale NSW 2216, Australia Ph (Korea): +82 10-4494-0328 Ph (Australia) +61 414 297 448 Resume: http://au.linkedin.com/in/bobjan Skype: bobjtls KakaoTalk: bobjtls http://www.cultconv.com In line with the Australian anti-spam legislation, if you wish to receive no further email from me, please send me an email with the subject "No Spam" > On 10 Sep 2020, at 12:19, TW Tones <[email protected]> wrote: > > Bob, > >> 1. Is there a simple concatenation operator, like & or + that can be used to >> concatenate strings? I know that a macro can do it but that seems very >> confusing to a simple mind like me. > > 1. Concatenation > > There are many ways to concatenate with tiddlywiki, although for good reasons > in may seem not as strait forward as you would expect. In part because where > do you want this concatenated result used? > Please provide a descriptive example of what you are currently try to > achieve. > > With concatenation you will find these methods useful > Define a macro in which the concatenation occurs > You can use $(currentTiddler)$ and parameter $param$ for simple substitutions > Wiki fy that macro (with the same name is ok) just before you use it say in a > filter and some parameters > You can use add-prefix/split/join/splitregext and other string handling. >> 2. Is there a way of doing simple arithmetic, say increment a variable or >> add some variables together? The manual implies that it is possible in a >> filter but I want to do it outside of a filter. > > 2. Most if not all the mathematics functions in standard tiddlywiki are > "filter operators", so they must be used in filters > > However; > Use triple braces to present the result of a calculation in line as a > parameter. > {{{ [your maths filter] }}} but you may need to turn the result into text > <$text text={{{ [your maths filter] }}}/> > You can use other maths plugins like Evans formula plugin he uses Mushroom > brackets (= maths =), calc widget and others > In closing if you are reluctant to learn filters in more detail, I suggest > you jump in. Filters are so powerful once you come to understand them your > powers are almost unlimited. > > Regards > TW Tones > >> On Thursday, 10 September 2020 11:13:06 UTC+10, Bob Jansen wrote: >> >> >> >> >> bobj >> > > -- > You received this message because you are subscribed to a topic in the Google > Groups "TiddlyWiki" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/tiddlywiki/WFwExRhO05c/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/tiddlywiki/7ff64fd3-d473-4ecb-b463-818671f80e51o%40googlegroups.com. -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/33553220-E393-4DCA-AFED-4A1B2BBBCD52%40gmail.com.
