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51 lines
3.4 KiB
Plaintext
51 lines
3.4 KiB
Plaintext
title: FilterOperators
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created: 20140303091312363
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modified: 20140303091312363
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The available filter operators are listed here. See TiddlerFilters for an introduction to tiddler filters and how they are used.
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* ''title'': selects the tiddler with the title given in the operand
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* ''is'': tests whether a tiddler is a member of the system defined set named in the operand (see below)
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* ''has'': tests whether a tiddler has a non-empty value for the field specified in the operand
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* ''sort'': sorts the tiddlers by the field specified in the operand
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* ''sortcs'': a case sensitive sort of the current tiddlers by the field specified in the operand
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* ''nsort'': sorts the tiddlers numerically by the field specified in the operand
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* ''nsortcs'': a case sensitive (for the non-numerical elements) numerical sort of the current tiddlers by the field specified in the operand
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* ''prefix'': tests whether a tiddlers title starts with the prefix specified in the operand
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* ''limit'': limits the number of subresults to the integer specified in the operand
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* ''tag'': tests whether a given tag is (`[tag[mytag]]`) or is not (`[!tag[mytag]]`) present on the tiddler
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* ''field:{fieldname}'' or ''{fieldname}'': tests whether a tiddler field has a specified value (`[modifier[Jeremy]]` or `[field:modifier[Jeremy]]`) or not (`[!modifier[Jeremy]]`)
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* ''tags'': selects the tags on the currently selected tiddlers
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* ''tagging'': selects the tiddlers tagged with the currently selected tiddlers
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* ''untagged'': selects the any of the selected tiddlers that do not have at least one tag
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* ''links'': selects the outgoing links on the currently selected tiddlers
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* ''backlinks'': selects the tiddlers that link to the currently selected tiddlers
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* ''list'': selects the tiddlers listed in a specified [[TiddlerList|TiddlerLists]]
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* ''next'': selects the next item in a TiddlerList after the current tiddler
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* ''previous'': selects the previous item in a TiddlerList before the current tiddler
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* ''listed'': selects the TiddlerLists that include the current tiddler
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* ''each'': selects one tiddler for each discrete value of the specified field
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* ''eachday'': selects one tiddler for each discrete day in the specified date field
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* ''sameday'': selects all the tiddlers falling into the same day as the provided date in the specified date field
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* ''fields'': returns the names of the fields present on the selected tiddlers
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* ''search'': returns all tiddlers that contain the specified text
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* ''reverse'': reverses the list
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* ''first'': selects the first tiddler of the list (or the first n if the operand is n)
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* ''last'': selects the last tiddler of the list (or the last n if the operand is n)
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* ''rest'': selects all but the first tiddler of the list (or all but the first n if the operand is n)
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* ''butfirst'': synonym for ''rest''
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* ''bf'': another synonym for ''rest''
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* ''butlast'': selects all but the last tiddler of the list (or all but the last n if the operand is n)
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* ''bl'': another synonym for ''butlast''
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* ''nth'': selects the n-th tiddler of the list. Defaults to n = 1
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* ''indexes'': selects the names of the indexes within a [[DataTiddler|DataTiddlers]]
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The operands available with the `is` operator are:
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* ''tiddler'': selects all tiddlers excluding shadows, whether or not they are SystemTiddlers
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* ''system'': selects all SystemTiddlers
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* ''shadow'': selects all ShadowTiddlers
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* ''current'': selects the CurrentTiddler
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* ''missing'': selects all MissingTiddlers
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* ''orphan'': selects all OrphanTiddlers
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