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Update tiddler filter docs

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Jermolene 2014-04-10 19:56:51 +01:00
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editions/tw5.com/tiddlers/concepts/TiddlerLinks.tid
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created: 20130825202900000
modified: 20140221093306317
modified: 20140410103200281
tags: concepts
title: TiddlerLinks
type: text/vnd.tiddlywiki
@ -12,7 +12,7 @@ Links are useful for modelling organic relationships between tiddlers, and parti
The TiddlerInfoPanel lists incoming links to a tiddler in the tab ''References''.
TiddlerFilters can include the following FilterOperators that work with links:
TiddlerFilters can include the following [[filter operators|TiddlerFilters]] that work with links:
* `[links[]]` - returns the titles of the tiddlers that are linked from the currently selected tiddler(s)
* `[backlinks[]]` - returns the titles of the tiddlers that link to the currently selected tiddler(s)

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editions/tw5.com/tiddlers/filters/FilterOperator all.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters commonfilters
title: FilterOperator: all
type: text/vnd.tiddlywiki
The ''all'' filter operator is used to select combinations of lists of tiddlers for subsequent operations.
The operand of the ''all'' operator is a list of names of tiddler sources joined with `+`.
For example:
|!Filter String |!Description |
|`[all[tiddlers]]` |Selects all 'real' tiddlers (both system and non-system), excluding shadow tiddlers |
|`[all[shadows]]` |Selects all ShadowTiddlers, including those that have been overridden with real tiddlers |
|`[all[shadows+tiddlers]]` |Selects all ShadowTiddlers and all 'real' tiddlers together |
|`[all[current]]` |Selects the current tiddler |
|`[all[missing]]` |Selects all MissingTiddlers |
|`[all[orphans]]` |Selects all OrphanTiddlers |

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editions/tw5.com/tiddlers/filters/FilterOperator backlinks.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: backlinks
type: text/vnd.tiddlywiki
The ''backlinks'' filter operator replaces the current list with a list of the non-system tiddlers that link to them.
For example:
|!Filter String |!Description |
|`[[HelloThere]backlinks[]]` |Selects all tiddlers that contain links to the tiddler `HelloThere` |
|`[tag[Personal]backlinks[]]` |Selects all tiddlers that contain links to tiddlers tagged `Personal` |
|`[all[current]backlinks[]]` |Selects all tiddlers that contain links to the current tiddler |

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editions/tw5.com/tiddlers/filters/FilterOperator bf.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: bf
type: text/vnd.tiddlywiki
The ''bf'' filter operator is a synonym for [[FilterOperator: rest]].

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editions/tw5.com/tiddlers/filters/FilterOperator butfirst.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: butfirst
type: text/vnd.tiddlywiki
The ''butfirst'' filter operator is a synonym for [[FilterOperator: rest]].

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editions/tw5.com/tiddlers/filters/FilterOperator butlast.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: butlast
type: text/vnd.tiddlywiki
Without an operand, the ''butlast'' filter operator returns all but the last entry in the current list. The optional operand specifies the number of entries to omit.
For example:
|!Filter String |!Description |
|`one two three four five +[butlast[]]` |Returns `one`, `two`, `three`, `four` |
|`one two three four five +[butlast[2]]` |Returns `one`, `two`, `three` |

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editions/tw5.com/tiddlers/filters/FilterOperator commands.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: commands
type: text/vnd.tiddlywiki
The ''commands'' filter operator replaces the current list with a list of the available commands (see the HelpCommand for details).
For example:
|!Filter String |!Description |
|`[commands[]]` |Returns a list of the available command names |

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editions/tw5.com/tiddlers/filters/FilterOperator each.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: each
type: text/vnd.tiddlywiki
The ''each'' filter operator filters the current list to leave only the first tiddler with each distinct value for a specified field.
For example:
|!Filter String |!Description |
|`[all[tiddlers]sort[title]each[type]]` |Returns a list of the first tiddler with each distinct ''type'' field |
The ''each'' operator can be used to group tiddlers. For example, the following example creates a list of tiddlers split into types:
<$list filter="[!is[system]has[type]!type[text/vnd.tiddlywiki]each[type]sort[type]]">
<div>
! <$view field="type"/>
<$list filter="[type{!!type}!is[system]sort[title]]">
<div>
<$link to={{!!title}}><$view field="title"/></$link>
</div>
</$list>
</div>
</$list>

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editions/tw5.com/tiddlers/filters/FilterOperator eachday.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: eachday
type: text/vnd.tiddlywiki
The ''eachday'' filter operator filters the current list to leave only the first tiddler that has a distinct value for a specified date field.
For example:
|!Filter String |!Description |
|`[eachday[created]]` |Returns a list of the first tiddler created on each distinct day |
The ''eachday'' operator can be used to group tiddlers. For example, the following wiki text creates a list of the number of tiddlers that were modified on each day:
<$list filter="[!is[system]eachday[modified]!sort[modified]]">
<$view field="modified" format="date" template="DD MMM YYYY"/>: <$count filter="[sameday{!!modified}]"/> modifications
</$list>

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editions/tw5.com/tiddlers/filters/FilterOperator field.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters commonfilters
title: FilterOperator: field
type: text/vnd.tiddlywiki
The ''field'' filter operator filters the current list to leave only the first tiddler that has a distinct value for a specified date field.
For example:
|!Filter String |!Description |
|`[eachday[created]]` |Returns a list of the first tiddler created on each distinct day |
The ''eachday'' operator can be used to group tiddlers. For example, the following wiki text creates a list of the number of tiddlers that were modified on each day:
<$list filter="[!is[system]eachday[modified]!sort[modified]]">
<$view field="modified" format="date" template="DD MMM YYYY"/>: <$count filter="[sameday{!!modified}]"/> modifications
</$list>

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editions/tw5.com/tiddlers/filters/FilterOperator first.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: first
type: text/vnd.tiddlywiki
The ''first'' filter operator returns the first entries in the current list. The optional operand specifies the number of entries to return.
For example:
|!Filter String |!Description |
|`one two three +[first[]]` |Returns `one` |
|`one two three +[first[2]]` |Returns `one`, `two` |

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editions/tw5.com/tiddlers/filters/FilterOperator has.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters commonfilters
title: FilterOperator: has
type: text/vnd.tiddlywiki
The ''has'' filter operator chooses tiddlers from the current list that have a non-empty value for the field specified in the operand.
For example:
|!Filter String |!Description |
|`[has[modifier]]` |Returns tiddlers that have a `modifier` field |

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editions/tw5.com/tiddlers/filters/FilterOperator indexes.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: indexes
type: text/vnd.tiddlywiki
The ''indexes'' filter operator returns a list of all the property indexes found in the DataTiddlers in the current list. Tiddlers that are not DataTiddlers are ignored.
For example:
|!Filter String |!Description |
|`[[MyData]indexes[]]` |Returns the indexes of all properties in the data tiddler `MyData` |
|`[{$:/palette}indexes[]sort[title]]` |Returns the names of all the colours defined in the current [[colour palette|ColourPalettes]] |

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editions/tw5.com/tiddlers/filters/FilterOperator is.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters commonfilters
title: FilterOperator: is
type: text/vnd.tiddlywiki
The ''is'' filter operator selects tiddlers from the current list according to their membership of the category specified in the operand:
* `[is[current]]` - returns any tiddler that matches the title of the current tiddler
* `[is[image]]` - tiddlers that contain an image (eg, GIF, JPEG, PNG etc.)
* `[is[missing]]` - MissingTiddlers that are referenced but undefined
* `[is[orphan]]` - OrphanTiddlers that are not referenced from any other tiddler
* `[is[shadow]]` - tiddlers that are ShadowTiddlers
* `[is[system]]` - tiddlers that are SystemTiddlers
* `[is[tiddler]]` - tiddlers that are not MissingTiddlers
For example:
|!Filter String |!Description |
|`[tag[task]is[shadow]]` |Returns ShadowTiddlers tagged `task` |
|`[tag[task]!is[system]]` |Returns non-SystemTiddlers tagged `task` |
|`[is[shadow]]` |Returns ShadowTiddlers that have been overridden by a 'real' tiddler |
|`[is[missing]]` |Returns an empty list (see note below) |
Note that the ''is'' filter operator strictly filters the current list by choosing whether or not to include each one in the output. It never adds tiddlers to the results that are not already listed. This means that when used at the start of a run of filter operators the ''is'' operator will be choosing from the currently existing tiddlers, and so will never return missing tiddlers, or shadow tiddlers that haven't been overridden.

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editions/tw5.com/tiddlers/filters/FilterOperator last.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: last
type: text/vnd.tiddlywiki
The ''last'' filter operator returns the last entries in the current list. The optional operand specifies the number of entries to return.
For example:
|!Filter String |!Description |
|`one two three +[last[]]` |Returns `three` |
|`one two three +[last[2]]` |Returns `two`, `three` |

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editions/tw5.com/tiddlers/filters/FilterOperator limit.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters commonfilters
title: FilterOperator: limit
type: text/vnd.tiddlywiki
The ''limit'' filter operator trims the current list to the length specified in the operator. Usually the first tiddlers in the list are returned; preceding the operator with ''!'' causes it to instead return the last tiddlers in the list.
For example:
|!Filter String |!Description |
|`[sort[modified]!limit[20]]` |Returns the titles of the last 20 tiddlers to have been modified |
|`[has[created]sort[created]limit[10]]` |Returns the titles of the oldest 10 tiddlers to have been created |

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editions/tw5.com/tiddlers/filters/FilterOperator links.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters commonfilters
title: FilterOperator: links
type: text/vnd.tiddlywiki
The ''links'' filter operator replaces the current list with a list of the targets of outgoing links from those tiddlers.
For example:
|!Filter String |!Description |
|`[[HelloThere]links[]]` |Returns the titles of tiddlers linked from `HelloThere` |
|`[all[current]links[]]` |Returns the titles of tiddlers linked from the current tiddler |

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editions/tw5.com/tiddlers/filters/FilterOperator list.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: list
type: text/vnd.tiddlywiki
The ''list'' filter operator replaces the current list with the list contained in the [[TextReference|TextReferences]] specified in the operand. The default field for the text reference is `list`.
Preceding the operator name with `!` inverts the logic so that the filter only returns the tiddlers in the current list that are not listed in the specified list.
For example:
|!Filter String |!Description |
|`[list[HelloThere]]` |Returns the list of tiddlers in the `list` field of the tiddler `HelloThere` |
|`[list[HelloThere!!mylist]]` |Returns the list of tiddlers in the `mylist` field of the tiddler `HelloThere` |

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editions/tw5.com/tiddlers/filters/FilterOperator listed.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: listed
type: text/vnd.tiddlywiki
The ''listed'' filter operator returns the titles of the tiddlers that have `list` fields that contain any members of the current list.
For example:
|!Filter String |!Description |
|`[[HelloThere]listed[]]` |Returns the titles of any tiddlers containing `HelloThere` in their `list` fields |
|`[all[current]listed[]]]` |Returns the titles of any tiddlers containing the current tiddler in their `list` fields |

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editions/tw5.com/tiddlers/filters/FilterOperator modules.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: modules
type: text/vnd.tiddlywiki
The ''modules'' filter operator treats the current list as a list of [[module types|ModuleType]], and returns the titles of all of the modules of those types.
For example:
|!Filter String |!Description |
|`[[filteroperator]modules[]]` |Returns a list of the modules of type `filteroperator` |
See also [[FilterOperator: moduletypes]].

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editions/tw5.com/tiddlers/filters/FilterOperator moduletypes.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: moduletypes
type: text/vnd.tiddlywiki
The ''moduletypes'' filter operator replaces the current list with a list of the types of the currently loaded modules.
For example:
|!Filter String |!Description |
|`[moduletypes[]]` |Returns a list of the types of the currently loaded modules |
See also [[FilterOperator: modules]].

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editions/tw5.com/tiddlers/filters/FilterOperator next.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: next
type: text/vnd.tiddlywiki
The ''next'' filter operator takes each tiddler in the current list and looks it up in the `list` field of the tiddler specified in the operand, and then returns the immediately following tiddler title.
The following examples assume a tiddler called `MyList` with a `list` field containing:
```
one two three four five
```
|!Filter String |!Description |
|`[[three]next[MyList]]` |Returns `four` |
|`[[five]next[MyList]]` |Returns an empty list |
|`one three +[next[MyList]]` |Returns `two`, `four` |
See also [[FilterOperator: previous]].

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editions/tw5.com/tiddlers/filters/FilterOperator nsort.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: nsort
type: text/vnd.tiddlywiki
The ''nsort'' filter operator sorts the current list as numeric values. String values are sorted case insensitively (upper and lower case letters are considered equivalent). Preceding the operator with `!` reverses the sort order.
For example:
|!Filter String |!Description |
|`10 010 1000 100 +[nsort[]]` |Returns `10`, `010`, `100`, `1000` |
|`10 010 alpha 1000 100 +[nsort[]]` |Returns `10`, `010`, `100`, `1000`, `alpha` |
See also [[FilterOperator: sort]], [[FilterOperator: sortcs]] and [[FilterOperator: nsortcs]].

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editions/tw5.com/tiddlers/filters/FilterOperator nsortcs.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: nsortcs
type: text/vnd.tiddlywiki
The ''nsortcs'' filter operator sorts the current list as numeric values. String values are sorted case sensitively (upper and lower case letters are considered different). Preceding the operator with `!` reverses the sort order.
For example:
|!Filter String |!Description |
|`10 010 1000 100 +[nsortcs[]]` |Returns `10`, `010`, `100`, `1000` |
|`10 010 alpha 1000 100 +[nsortcs[]]` |Returns `10`, `010`, `100`, `1000`, `alpha` |
See also [[FilterOperator: sort]], [[FilterOperator: sortcs]] and [[FilterOperator: nsort]].

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editions/tw5.com/tiddlers/filters/FilterOperator nth.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: nth
type: text/vnd.tiddlywiki
Without an operand, the ''nth'' filter operator returns the first entry in the current list. The optional operand specifies the number of entries to return.
For example:
|!Filter String |!Description |
|`one two three four five +[nth[]]` |Returns `one` |
|`one two three four five +[nth[3]]` |Returns `three` |

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editions/tw5.com/tiddlers/filters/FilterOperator plugintiddlers.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: plugintiddlers
type: text/vnd.tiddlywiki
The ''plugintiddlers'' filter operator returns the titles of the shadow tiddlers within any plugin tiddlers in the current list.
For example:
|!Filter String |!Description |
|`[[$:/core]plugintiddlers[]]` |Returns a list of the shadow tiddlers within the [[$:/core]] module |
See also [[FilterOperator: shadowsource]].

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editions/tw5.com/tiddlers/filters/FilterOperator prefix.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: prefix
type: text/vnd.tiddlywiki
The ''prefix'' filter operator returns the titles in the current list that start with a specified prefix. If the ''prefix'' operator is preceded by `!` then it returns the titles that do not start with the specified prefix.
For example:
|!Filter String |!Description |
|`[tag[task]!prefix[hidden]]` |Returns tiddlers tagged `task` whose titles do not start with `hidden` |
|`[prefix[$:/]]` |Equivalent to `[is[system]]` |
See also [[FilterOperator: removeprefix]].

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editions/tw5.com/tiddlers/filters/FilterOperator previous.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: previous
type: text/vnd.tiddlywiki
The ''previous'' filter operator takes each tiddler in the current list and looks it up in the `list` field of the tiddler specified in the operand, and then returns the immediately preceding tiddler title.
The following examples assume a tiddler called `MyList` with a `list` field containing:
```
one two three four five
```
|!Filter String |!Description |
|`[[three]previous[MyList]]` |Returns `two` |
|`[[one]previous[MyList]]` |Returns an empty list |
|`two four +[previous[MyList]]` |Returns `one`, `three` |
See also [[FilterOperator: next]].

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editions/tw5.com/tiddlers/filters/FilterOperator removeprefix.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: removeprefix
type: text/vnd.tiddlywiki
The ''removeprefix'' filter operator returns the titles in the current list that start with a specified prefix with the prefix removed.
For example:
|!Filter String |!Description |
|`tid-one tid-two three +[removeprefix[tid-]]` |Returns `one`, `two` |
See also [[FilterOperator: prefix]].

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editions/tw5.com/tiddlers/filters/FilterOperator rest.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: rest
type: text/vnd.tiddlywiki
Without an operand, the ''rest'' filter operator returns all but the first entry in the current list. The optional operand specifies the number of entries to omit.
For example:
|!Filter String |!Description |
|`one two three four five +[rest[]]` |Returns `two`, `three`, `four`, `five` |
|`one two three four five +[rest[2]]` |Returns `three`, `four`, `five` |

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editions/tw5.com/tiddlers/filters/FilterOperator reverse.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: reverse
type: text/vnd.tiddlywiki
The ''reverse'' filter operator reverses the order of the titles in the current list.
For example:
|!Filter String |!Description |
|`one two three +[reverse[]]` |Returns the list `three`, `two`, `one` |

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editions/tw5.com/tiddlers/filters/FilterOperator sameday.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: sameday
type: text/vnd.tiddlywiki
The ''sameday'' filter operator filters the current list to leave only those tiddlers whose `modified` field is on the same day as the date provided as the operand.
For example:
|!Filter String |!Description |
|`[sameday[20140410]]` |Returns a list of the tiddlers modified on the 10th April 2014 |
See [[FilterOperator: eachday]] for an example.

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editions/tw5.com/tiddlers/filters/FilterOperator search.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters commonfilters
title: FilterOperator: search
type: text/vnd.tiddlywiki
The ''search'' filter operator filters the current list to leave only those tiddlers that include the operand text in their title, body or tags. Preceding the operator with `!` returns all tiddlers that do not include the specified text. The search is case-insenstive.
For example:
|!Filter String |!Description |
|`[search[alsatian]]` |Returns a list of the tiddlers containing the text "alsatian" |
|`[all[shadows]search[alsatian]]` |Returns a list of the shadow tiddlers containing the text "alsatian" |

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editions/tw5.com/tiddlers/filters/FilterOperator shadowsource.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: shadowsource
type: text/vnd.tiddlywiki
The ''shadowsource'' filter operator returns the titles of the plugin tiddlers containing any ShadowTiddlers in the current list.
For example:
|!Filter String |!Description |
|`[[$:/core/copyright.txt]shadowsource[]]` |Returns `$:/core`, which is the plugin that contains the shadow tiddler [[$:/core/copyright.txt]] |
See also [[FilterOperator: plugintiddlers]].

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editions/tw5.com/tiddlers/filters/FilterOperator sort.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters commonfilters
title: FilterOperator: sort
type: text/vnd.tiddlywiki
The ''sort'' filter operator sorts the current list case insensitively (upper and lower case letters are considered equivalent). Preceding the operator with `!` reverses the sort order.
For example:
|!Filter String |!Description |
|`one two three four +[sort[]]` |Returns `four`, `one`, `three`, `two` |
|`one two Three four +[sort[]]` |Returns `four`, `one`, `Three`, `two` |
See also [[FilterOperator: nsort]], [[FilterOperator: sortcs]] and [[FilterOperator: nsortcs]].

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editions/tw5.com/tiddlers/filters/FilterOperator sortcs.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: sortcs
type: text/vnd.tiddlywiki
The ''sortcs'' filter operator sorts the current list case sensitively (upper and lower case letters are considered different). Preceding the operator with `!` reverses the sort order.
For example:
|!Filter String |!Description |
|`one two Three four +[sortcs[]]` |Returns `Three`, `four`, `one`, `two` |
See also [[FilterOperator: sort]], [[FilterOperator: nsort]] and [[FilterOperator: nsortcs]].

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editions/tw5.com/tiddlers/filters/FilterOperator tag.tid Normal file
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created: 20140410103123179
modified: 20140410103123179
tags: filters commonfilters
title: FilterOperator: tag
type: text/vnd.tiddlywiki
The ''tag'' filter operator returns the tiddlers in the current list that have the tag specified in the operand. Preceding the operator with `!` returns tiddlers that do not have the specified tag.
For example:
|!Filter String |!Description |
|`[tag[mytag]]` |Returns all tiddlers tagged `mytag` |
|`[all[shadows]tag[mytag]]` |Returns all ShadowTiddlers tagged `mytag` |
|`[all[tiddlers+shadows]tag[mytag]]` |Returns all ShadowTiddlers and non-ShadowTiddlers tagged `mytag` |
|`[!tag[mytag]]` |Returns all tiddlers not tagged `mytag` |
|`[tag[mytag]!tag[exclude]]` |Returns all tiddlers tagged `mytag` that are not tagged `mytag` |
See also [[FilterOperator: tagging]], [[FilterOperator: tags]] and [[FilterOperator: untagged]].

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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: tagging
type: text/vnd.tiddlywiki
The ''tagging'' filter operator returns all the tiddlers that are tagged by the tiddlers in the current list.
For example:
|!Filter String |!Description |
|`[[mytag]tagging[]]` |Returns all tiddlers tagged `mytag` |
|`[all[current]tagging[]]` |Returns all tiddlers tagged by the current tiddler |
See also [[FilterOperator: tag]], [[FilterOperator: tags]] and [[FilterOperator: untagged]].

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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: tags
type: text/vnd.tiddlywiki
The ''tags'' filter operator returns all the tags present on the tiddlers in the current list.
For example:
|!Filter String |!Description |
|`[[mytiddler]tags[]]` |Returns all tags for the tiddler `mytiddler` |
|`[all[shadows+tiddlers]tags[]]` |Returns all the tags used on ShadowTiddlers or non-ShadowTiddlers |
See also [[FilterOperator: tag]], [[FilterOperator: tagging]] and [[FilterOperator: untagged]].

15
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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: title
type: text/vnd.tiddlywiki
The ''title'' filter operator replaces the current list with the title specified in the operand.
For example:
|!Filter String |!Description |
|`[[mytiddler]]` |Returns the title `mytiddler` |
|`[title[mytiddler]]` |Returns the title `mytiddler` |
Note that the ''title'' operator is the default when no operator name is specified.

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created: 20140410103123179
modified: 20140410103123179
tags: filters
title: FilterOperator: untagged
type: text/vnd.tiddlywiki
The ''untagged'' filter operator selects from the current list any tiddlers that do not have any tags.
For example:
|!Filter String |!Description |
|`[untagged[]]` |Returns the titles of all tiddlers without tags |
|`[all[shadows]untagged[]]` |Returns all the ShadowTiddlers without tags |
See also [[FilterOperator: tag]], [[FilterOperator: tagging]] and [[FilterOperator: tags]].

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created: 20140410103123179
modified: 20140410103123179
tags: concepts
title: FilterOperators
type: text/vnd.tiddlywiki
\define bulletList(filter)
<ul><$list filter="$filter$"><li><$link to={{!!title}}><$view field="title"/></$link></li></$list></ul>
\end
The full list of available filter operators is:
<<bulletList "[tag[filters]]">>

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created: 20130827080000000
modified: 20140306034221709
tags: concepts
title: TiddlerFilters
created: 20140410101941871
modified: 20140410103229640
tags: introduction
title: Introduction to Filters
type: text/vnd.tiddlywiki
Filters are used in TiddlyWiki to choose tiddlers by specifying simple match criteria. See [[TiddlerFilter Formal Grammar]] for a technical explanation of the syntax.
Filters are used by widgets like the ListWidget and the CountWidget to perform operations on multiple tiddlers at once. They are also used throughout TiddlyWiki's internal mechanisms.
A step by step introduction to how TiddlerFilters are used.
You can experiment with tiddler filters by typing them into the "Filter" tab of the [[advanced search panel|$:/AdvancedSearch]].
@ -22,7 +20,7 @@ The titles must be separated by one or more spaces and/or linebreaks.
! Filter Operators
Filter operators are used to select tiddlers based on some criteria. For example, this filter consists of a single operation made selects all tiddlers tagged "introduction":
Filter operators are used to select tiddlers based on some criteria. For example, this filter consists of a single operation that selects all tiddlers tagged "introduction":
```
[tag[introduction]]
@ -30,7 +28,7 @@ Filter operators are used to select tiddlers based on some criteria. For example
The word "tag" is the ''operator'' and "introduction" is the ''operand''.
See FilterOperators for a complete list of the available operators.
See TiddlerFilters for a complete list of the available operators.
!! Default Filter Operator

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created: 20140410103123179
modified: 20140410103123179
tags: resources
title: "TWeb.at" by Mario Pietsch
type: text/vnd.tiddlywiki
url: https://tweb.at
A collection of TiddlyWiki resources from Mario Pietsch, with a focus on cloud deployments. Mario also maintains the German translation of TiddlyWiki.
<<<
My name is Mario Pietsch from Austria. I'm living near Salzburg.
This page, will be the portal to my TiddlyWiki, TiddlyWeb related content.
<<<