Update the wiki

tiddlers/$__config_Search_AutoFocus.tid

@@ -0,0 +1,8 @@
+created: 20190226102210221
+creator: Mohammad
+modified: 20190316114911871
+modifier: Mohammad
+title: $:/config/Search/AutoFocus
+type: text/vnd.tiddlywiki
+
+false

tiddlers/$__plugins_ajh_favorites_list.tid

@@ -1,7 +1,7 @@
 created: 20190117104703657
 creator: Mohammad
-list: [[Worth Reading]] Sandbox $:/.mr/macro/utility [[Tips: Advanced Search with Search Operator]] [[Variables vs. Parameters]] [[Variable Textual Substitution]] [[Shorthand Syntax Summary]] myTemplate/help/xxx
-modified: 20190216180307587
+list: [[Worth Reading]] Sandbox $:/.mr/macro/utility [[Tips: Advanced Search with Search Operator]] [[Variables vs. Parameters]] [[Variable Textual Substitution]] [[Shorthand Syntax Summary]] myTemplate/help/xxx [[Jeremy Solution ii]]
+modified: 20190316114911720
 modifier: Mohammad
 tags: 
 title: $:/plugins/ajh/favorites/list

tiddlers/10th March 2019.tid

@@ -0,0 +1,11 @@
+created: 20190310093246647
+creator: Mohammad
+modified: 20190316114912604
+modifier: Mohammad
+tags: task
+title: 10th March 2019
+type: text/vnd.tiddlywiki
+
+<<docit>>
+
+https://groups.google.com/d/msg/tiddlywiki/x2auoIxkTOY/1eRRZT_wBAAJ

tiddlers/12th March 2019.tid

@@ -0,0 +1,13 @@
+created: 20190312041049827
+creator: Mohammad
+modified: 20190316114912574
+modifier: Mohammad
+tags: task
+title: 12th March 2019
+type: text/vnd.tiddlywiki
+
+<<docit>>
+
+https://groups.google.com/d/msg/tiddlywiki/hyUV1NwYiU4/KO0t_KZ8BQAJ
+https://groups.google.com/d/msg/tiddlywiki/FZ1WEpYcr3I/IDQUi3lfBQAJ
+

tiddlers/Add or Remove Tiddler Fields.tid

@@ -0,0 +1,56 @@
+created: 20190121043529373
+creator: Mohammad
+keywords: field add remove delete
+modified: 20190316114912254
+modifier: Mohammad
+responder: Tiddlywiki.com
+tags: exmp29 fieldmangler solution
+title: Add or Remove Tiddler Fields
+type: text/vnd.tiddlywiki
+url: https://tiddlywiki.com/#FieldManglerWidget
+
+! Add new fields
+; How to add a new field to a series of tiddlers?
+: List them and use `fieldmangler` to add the new filed.
+
+!! Example
+Add the new filed `rank` to all tiddlers tagged with `exmp29`
+
+><$macrocall $name="wikitext-example-without-html" 
+src="""<$button> Add the new rank field
+ <$list filter="[tag[exmp29]]">
+  <$fieldmangler>
+    <$action-sendmessage $message="tm-add-field" $param="rank"/>
+  </$fieldmangler>
+ </$list>
+</$button>
+"""/>
+
+!!! Remarks
+# The `list` widget list all tiddlers tagged with `Links`.
+# The `action-sendmessage` widget 
+# The button widget triggers the `tm-add-field` and add the `rank` field to all those tiddlers.
+
+! Remove fields
+; How delete a field from a series of tiddlers?
+: List them and use `fieldmangler` to delete the filed.
+
+!! Example
+Delete the filed `rank` from all tiddlers tagged with `exmp29`
+
+><$macrocall $name="wikitext-example-without-html" 
+src="""<$button> Delete the rank field
+ <$list filter="[tag[exmp29]has:field[rank]]">
+  <$fieldmangler>
+    <$action-sendmessage $message="tm-remove-field" $param="rank"/>
+  </$fieldmangler>
+ </$list>
+</$button>
+"""/>
+
+!! Remarks
+# The `list` widget list all tiddlers tagged with `exmp29` which has a field `rank`
+# The `action-sendmessage` widget 
+# The button widget triggers the `tm-remove-field` and deletes `rank` field from all those tiddlers.
+
+<<alert info "The field mangler widget manipulates the fields and tags of a tiddler.">>

tiddlers/Change the Colors of One Editor Toolbar Button.tid

@@ -0,0 +1,50 @@
+created: 20190314032516038
+creator: Mohammad
+keywords: editor toolbar
+modified: 20190316114911902
+modifier: Mohammad
+responder: JD
+tags: solution
+title: Change the Colors of One Editor Toolbar Button
+type: text/vnd.tiddlywiki
+url: https://groups.google.com/d/msg/tiddlywiki/hpBJ1peI4zU/i_9Lw4T9BQAJ
+
+; How to change the background color of list-bullet button in Tiddlywiki editor toolbar?
+: Use the below CSS. It is possible to change the background color of all butons in a similar way.
+
+Create a tiddler
+Tag it with `$:/tags/Stylesheet`
+Put the below CSS inside the tiddler body (text)
+
+```
+.tc-editor-toolbar > .tc-reveal > button {
+     display: inline-flex;
+     padding: 0; 
+}
+
+.tc-editor-toolbar button .tc-image-button {
+     padding: 2px;
+     font-size: 1.25em;
+}
+
+.tc-editor-toolbar button .tc-image-list-bullet {
+     display: flex;
+     align-items: stretch;
+     justify-content: stretch;
+     fill: red;
+     background-color: yellow;
+}
+```
+
+!! Remark
+If you need to change the background color of all toolbar buttons change the last part of above CSS as below:
+
+```
+.tc-editor-toolbar button {
+     display: flex;
+     align-items: stretch;
+     justify-content: stretch;
+     fill: red;
+     background-color: yellow;
+}
+```

tiddlers/Check if Macro or Variable Exists.tid

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+created: 20190227065336369
+creator: Mohammad
+keywords: macro variable exist
+modified: 20190316114911890
+modifier: Mohammad
+responder: Jeremy Ruston
+tags: solution exmp52
+title: Check if Macro or Variable Exists
+type: text/vnd.tiddlywiki
+url: Ref: https://groups.google.com/d/msg/tiddlywiki/4rEuAWc4EpM/JFBoPsibBwAJ
+
+;How to check if a macro / variable exists?
+A new subfilter `[is[variable]` has been introduced in Tddly 5.1.20 to support checking the existence of a macro variable.
+
+<<dbadge Tiddlywiki 5.1.20+ danger>>
+
+!! Syntax
+```
+[[VAR_NAME]] +[is[variable]addsuffix[ is a variable]] ~[[Undefined variable or macro 'VAR_NAME']]
+
+[[currentTiddler]] +[is[variable]addsuffix[ is a variable]] ~[[Undefined variable or macro ‘currentTiddler']]
+```
+
+!! Example i
+The below macro was proposed by [[S.S.|https://groups.google.com/d/msg/tiddlywiki/4rEuAWc4EpM/8kvLDh7qBwAJ]] and works as expected.
+
+```
+\define variable-test(var)
+<$list filter="[[$var$]] +[is[variable]]" emptyMessage="''$var$'' - //Undefined variable or macro//">
+''$var$'' - Existed variable or macro
+</$list>
+\end
+
+1. <<variable-test list-links>>
+
+2. <<variable-test list-linkss>>
+```
+
+See in [[Example 52: Check if Variable Macro Exists]] the new `subfilter` in action.
+
+!! Example ii
+[[Mal|https://groups.google.com/d/msg/tiddlywiki/4rEuAWc4EpM/1qOUvPdhAgAJ]] has proposed the below simple syntax
+
+```
+{{{ [[myMacro]] +[!is[variable]addsuffix[ is not defined]] }}}
+```
+
+This should produce "myMacro is not defined" or nothing if the macro or variable is defined.

tiddlers/Check if Passed the Macro Parameter.tid

@@ -1,7 +1,7 @@
 created: 20190214163529629
 creator: Mohammad
 keywords: macro blank empty parameter
-modified: 20190224163831614
+modified: 20190316114915029
 modifier: Mohammad
 responder: Mohammad and Bimlas
 tags: solution
@@ -31,9 +31,21 @@ Do my job!
 
 <<alert info "''Note'': Wrapping the whole macro inside above `list` widget causes macro only run if the parameter gets a non-Empty value.">>
 
+!! Alternative i
+A rather robust solution is proposed by BTC as below
+
+```
+\define macro2(param)
+<$list filter="[<__param__>minlength[1]]">
+
+Do my job!
+</$list>
+\end
+```
+In this method, if param has not been passed the `minlength[1]` returns nothing. This operator means the input should have at least one character.
 
 
-!! Alternative
+!! Alternative ii
 Bimlas in [[forum|https://groups.google.com/d/msg/tiddlywiki/82N15sAnoPs/iWhtoBjbAwAJ]] proposed this alternative, in that the macro is blank
 
 ```

tiddlers/Check if Tiddler Newer Than the Other.tid

@@ -0,0 +1,52 @@
+created: 20190314174758260
+creator: Mohammad
+keywords: newer greater tiddler
+modified: 20190316114914999
+modifier: Mohammad
+responder: BurningTreeC
+tags: exmp54 solution
+title: Check if Tiddler Newer Than the Other
+type: text/vnd.tiddlywiki
+url: https://groups.google.com/d/msg/tiddlywiki/9QQvkJkLogA/UbIgaSFSBgAJ
+
+; How to check if a tiddler is newer than the other?
+: Compare the modified time of two tiddlers
+
+```
+\define is-thisTid-newer(TidA, TidB)
+<$set name="tidAMod" value={{{ [[$TidA$]get[modified]] }}}>
+<$set name="tidBMod" value={{{ [[$TidB$]get[modified]] }}}>
+<$list filter="[<tidAMod>] [<tidBMod>] +[nsort[]last[1]remove<tidAMod>]">
+Yes, $TidA$ is newer
+</$list>
+<$list filter="[<tidAMod>] [<tidBMod>] +[nsort[]last[1]remove<tidBMod>]">
+No, $TidA$ is older
+</$list>
+</$set>
+</$set>
+\end
+```
+
+!! Remarks
+# The first two `$set` widgets get the date of modification of two tiddlers and stores in related variables
+# The first `$list` widget uses a smart filter to determine if //tidAMod// is greater than //tidBMod//.
+# The second `$list` widget uses a smart filter to determine if //tidBMod// is greater than //tidAMod//.
+
+!! This is another solution
+Here the `$reveal` widget has been used! This is a little longer code in comparison to the above solution.
+See for more infor [[BTC|https://groups.google.com/d/msg/tiddlywiki/9QQvkJkLogA/xDWozyJRBgAJ]].
+
+```
+\define is-newer(TidA, TidB)
+<$set name="tidAMod" value={{{ [[$TidA$]get[modified]] }}}>
+<$set name="tidBMod" value={{{ [[$TidB$]get[modified]] }}}>
+<$reveal type="match" text="yes" default={{{ [<tidAMod>] [<tidBMod>] +[nsort[]last[1]remove<tidBMod>addprefix[yes]removesuffix<tidAMod>] ~[[no]] }}}>
+$TidA$ is newer
+</$reveal>
+<$reveal type="match" text="no" default={{{ [<tidAMod>] [<tidBMod>] +[nsort[]last[1]remove<tidBMod>addprefix[yes]removesuffix<tidAMod>] ~[[no]] }}}>
+$TidB$ is newer
+</$reveal>
+</$set>
+</$set>
+\end
+```

tiddlers/Create Tiddler with Sequence Number.tid

@@ -0,0 +1,81 @@
+created: 20190222064439458
+creator: Mohammad
+keywords: create tiddler sequence number
+modified: 20190316114914237
+modifier: Mohammad
+responder: Mohammad
+tags: exmp50 solution
+title: Create Tiddler with Sequence Number
+type: text/vnd.tiddlywiki
+url: https://groups.google.com/d/msg/tiddlywiki/3_Xacb7H1p0/BN73J04iAQAJ
+
+Assume you want to create tiddlers all tagged with say `myTag` and have unique title with ordinal number.
+So
+
+* tiddlers have title like `myTiddler-1`
+* tiddlers all tagged with `myTag`
+
+```
+\define newTitle() myTiddler-{{{[tag[myTag]count[]add[1]]}}} 
+\define newTiddler()
+<$wikify name="myTitle" text="<<newTitle>>" >
+<$action-createtiddler $basetitle=<<myTitle>> tags="myTag" /> 
+</$wikify>
+\end
+```
+
+Then use it like below
+
+```
+<$button actions=<<newTiddler>>>
+Create a new tiddler
+</$button>
+```
+
+!!! Remarks
+* The `wikify` widget, calls newTitle macro, creates a new title using filter transclusion and store it in myTitle variable.
+* The `action-createtiddler` creates a new tiddler using myTitle and myTag.
+
+!! Issues and solution
+[[Thomas Elmiger|https://groups.google.com/d/msg/tiddlywiki/3_Xacb7H1p0/KSYPzQguAQAJ]] states that if some tiddlers deleted in this between, the above code may overwrite the previous ones. Assume you have myTiddler-1, myTiddler-2, and myTiddler-3. Now you delete myTiddler-2 abd then create another, the current code sees there is two tiddler, so it creates the next and overwrite myTiddler-3.
+
+!!! Solution
+* If myTiddler-2 deleted, the code will create myTiddler-3 1. So there is no risk to overwrite
+* To overcome this issue, the below recursive macro take cares of this issue as below
+
+```
+\define newTitle() myTiddler-{{{[tag[myTag]count[]add[$(inc)$]]}}} 
+
+\define newTiddler(n:0)
+<$set name="inc" value={{{ [<__n__>add[1]] }}}>
+<$wikify name="myTitle" text="<<newTitle>>" >
+<$list filter="[<myTitle>] +[!has[title]]" 
+emptyMessage=""" <$macrocall $name="newTiddler" n=<<inc>> /> """>
+<$action-createtiddler $basetitle=<<myTitle>> tags="myTag" />
+</$list>
+</$wikify>
+</$set>
+\end
+
+<$button actions=<<newTiddler>>>
+Create a new tiddler
+</$button>
+```
+
+!!! Remarks
+* The newTiddler macro check if the tiddler is going to created is existed or not. It uses the `list` widget for this purpose.
+* If the tiddler is existed, it calls itself with n icremented by one. This is done by emptyMessage part of `list` widget.
+* The newTiddler macro calls itself as many as time to find a sequence number not in use and then creates the tiddler.
+
+!!! Solution iii
+[[Mal|https://groups.google.com/d/msg/tiddlywiki/3_Xacb7H1p0/6LqGKyVmAQAJ]] has proposed using zero padded number. A revised version of zero padded number (assuming 3 digits) is given below.
+
+```
+\define newTitle() myTiddler-{{{[tag[myTag]count[]add[1]addprefix[0000]split[]last[3]join[]]}}} 
+\define newTiddler()
+<$wikify name="myTitle" text="<<newTitle>>" >
+<$action-createtiddler $basetitle=<<myTitle>> tags="myTag" /> 
+</$wikify>
+\end
+```
+See this method in action: [[Example 50: Tiddler Title  with Zero Padded Number]].

tiddlers/Disable Search Autofocus.tid

@@ -0,0 +1,15 @@
+created: 20190226102239362
+creator: Mohammad
+keywords: search auto-focus
+modified: 20190316114915566
+modifier: Mohammad
+responder: Jeremy Ruston
+tags: solution
+title: Disable Search Autofocus
+type: text/vnd.tiddlywiki
+url: https://groups.google.com/d/msg/tiddlywiki/kuG94UuCnV8/MSVM6MY3DAAJ
+
+Tiddlywiki by default has auofocus on Searchbox on the sidebar. This may cause annoying behaviour when you open a wiki and a search word in the sidebar search box. To disable this feature:
+
+# Open [[$:/config/Search/AutoFocus]]
+# Set the text value of this tiddler to `false`.