On Saturday, December 2, 2017 at 7:29:05 PM UTC-8, Diego Mesa wrote: > > Can some one clarify on the use of << vs < when referencing variables... >
In TiddlyWiki *content*, variables are referenced using <<variableName>>. The double-bracket syntax is used to avoid conflicts with standard HTML syntax (i.e., <b> starts normal HTML bold formatting, while <<b>> embeds the value of a TiddlyWiki variable named "b") However, within TiddlyWiki *filters*, there is no need doubling the brackets, as HTML is not allowed *within* the filter, so only single <variableName> is used. ...and why I don't have to wrap <fieldname> with [<fieldname>] before > giving it to split. Think of the brackets in filters as part of the operand itself rather than a "container" for the operand. The type of bracket indicates the type of operand being used: use [...] for literal values, e.g., [texthere] use {...} for field references, e.g., {!!fieldname} use <...> for variables e.g. <currentTiddler> Thus, to split the literal text, "sometext", you could write: [title[sometext]splitbefore[t]removesuffix[t]] you would get "some" as a result. If the value "sometext" is stored in a field named "somefield" in the current tiddler, you could write: [{!!somefield}splitbefore[t]removesuffix[t]] and, if the value "sometext" is stored in a variable named "somevariable", you could write: [<somevariable>splitbefore[t]removesuffix[t]] As a slightly more complex example, suppose the value to split on was also stored in a variable. Then you could write: [<somevariable>splitbefore<othervariable>removesuffix<othervariable>] hope this helps, enjoy, -e Eric Shulman TiddlyTools.com: "Small Tools for Big Ideas!" (tm) InsideTiddlyWiki: The Missing Manuals -- 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 tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/6c2f5349-942b-478e-8168-b254c3ec2757%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.