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Code Issues Releases Wiki Activity

Remove support for conditional definitions

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It was introduced for use cases associated with the global mechanism that was dropped in e3d13696c8
This commit is contained in:
jeremy@jermolene.com
2022-10-03 14:39:45 +01:00
parent b6796863e8
commit 93100a1c8f
4 changed files with 24 additions and 48 deletions
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19
core/modules/parsers/wikiparser/rules/fnprocdef.js
View File

@@ -35,7 +35,7 @@ Instantiate parse rule
exports.init = function(parser) {
this.parser = parser;
// Regexp to match
this.matchRegExp = /^\\(\??)(function|procedure|widget)\s+([^(\s]+)(\(\s*([^)]*)\))?(\s*\r?\n)?/mg;
this.matchRegExp = /^\\(function|procedure|widget)\s+([^(\s]+)(\(\s*([^)]*)\))?(\s*\r?\n)?/mg;
};
/*
@@ -46,12 +46,12 @@ exports.parse = function() {
this.parser.pos = this.matchRegExp.lastIndex;
// Parse the parameters
var params = [];
if(this.match[4]) {
params = $tw.utils.parseParameterDefinition(this.match[5]);
if(this.match[3]) {
params = $tw.utils.parseParameterDefinition(this.match[4]);
}
// Is this a multiline definition?
var reEnd;
if(this.match[6]) {
if(this.match[5]) {
// If so, the end of the body is marked with \end
reEnd = /(\r?\n\\end[^\S\n\r]*(?:$|\r?\n))/mg;
} else {
@@ -78,21 +78,18 @@ exports.parse = function() {
children: [],
params: params
}];
$tw.utils.addAttributeToParseTreeNode(parseTreeNodes[0],"name",this.match[3]);
$tw.utils.addAttributeToParseTreeNode(parseTreeNodes[0],"name",this.match[2]);
$tw.utils.addAttributeToParseTreeNode(parseTreeNodes[0],"value",text);
if(this.match[2] === "function") {
if(this.match[1] === "function") {
parseTreeNodes[0].isFunctionDefinition = true;
} else if(this.match[2] === "procedure") {
} else if(this.match[1] === "procedure") {
parseTreeNodes[0].isProcedureDefinition = true;
} else if(this.match[2] === "widget") {
} else if(this.match[1] === "widget") {
parseTreeNodes[0].isWidgetDefinition = true;
}
if(this.parser.configTrimWhiteSpace) {
parseTreeNodes[0].configTrimWhiteSpace = true;
}
if(this.match[1] === "?") {
$tw.utils.addAttributeToParseTreeNode(parseTreeNodes[0],"conditional","yes");
}
return parseTreeNodes;
};

11
core/modules/parsers/wikiparser/rules/macrodef.js
View File

@@ -27,7 +27,7 @@ Instantiate parse rule
exports.init = function(parser) {
this.parser = parser;
// Regexp to match
this.matchRegExp = /^\\(\??)define\s+([^(\s]+)\(\s*([^)]*)\)(\s*\r?\n)?/mg;
this.matchRegExp = /^\\define\s+([^(\s]+)\(\s*([^)]*)\)(\s*\r?\n)?/mg;
};
/*
@@ -37,7 +37,7 @@ exports.parse = function() {
// Move past the macro name and parameters
this.parser.pos = this.matchRegExp.lastIndex;
// Parse the parameters
var paramString = this.match[3],
var paramString = this.match[2],
params = [];
if(paramString !== "") {
var reParam = /\s*([A-Za-z0-9\-_]+)(?:\s*:\s*(?:"""([\s\S]*?)"""|"([^"]*)"|'([^']*)'|\[\[([^\]]*)\]\]|([^"'\s]+)))?/mg,
@@ -56,7 +56,7 @@ exports.parse = function() {
}
// Is this a multiline definition?
var reEnd;
if(this.match[4]) {
if(this.match[3]) {
// If so, the end of the body is marked with \end
reEnd = /(\r?\n\\end[^\S\n\r]*(?:$|\r?\n))/mg;
} else {
@@ -84,11 +84,8 @@ exports.parse = function() {
params: params,
isMacroDefinition: true
}];
$tw.utils.addAttributeToParseTreeNode(parseTreeNodes[0],"name",this.match[2]);
$tw.utils.addAttributeToParseTreeNode(parseTreeNodes[0],"name",this.match[1]);
$tw.utils.addAttributeToParseTreeNode(parseTreeNodes[0],"value",text);
if(this.match[1] === "?") {
$tw.utils.addAttributeToParseTreeNode(parseTreeNodes[0],"conditional","yes");
}
return parseTreeNodes;
};

28
core/modules/widgets/setvariable.js
View File

@@ -47,21 +47,17 @@ SetWidget.prototype.execute = function() {
this.setIndex = this.getAttribute("index");
this.setValue = this.getAttribute("value");
this.setEmptyValue = this.getAttribute("emptyValue");
this.setConditional = this.getAttribute("conditional","no") === "yes";
// Ignore if this is a conditional assignment and the variable already has a value
if(!this.setConditional || this.getVariableInfo(this.setName).text === undefined) {
// Set context variable
if(this.parseTreeNode.isMacroDefinition) {
this.setVariable(this.setName,this.getValue(),this.parseTreeNode.params,true);
} else if(this.parseTreeNode.isFunctionDefinition) {
this.setVariable(this.setName,this.getValue(),this.parseTreeNode.params,undefined,{isFunctionDefinition: true});
} else if(this.parseTreeNode.isProcedureDefinition) {
this.setVariable(this.setName,this.getValue(),this.parseTreeNode.params,undefined,{isProcedureDefinition: true, configTrimWhiteSpace: this.parseTreeNode.configTrimWhiteSpace});
} else if(this.parseTreeNode.isWidgetDefinition) {
this.setVariable(this.setName,this.getValue(),this.parseTreeNode.params,undefined,{isWidgetDefinition: true, configTrimWhiteSpace: this.parseTreeNode.configTrimWhiteSpace});
} else {
this.setVariable(this.setName,this.getValue());
}
// Set context variable
if(this.parseTreeNode.isMacroDefinition) {
this.setVariable(this.setName,this.getValue(),this.parseTreeNode.params,true);
} else if(this.parseTreeNode.isFunctionDefinition) {
this.setVariable(this.setName,this.getValue(),this.parseTreeNode.params,undefined,{isFunctionDefinition: true});
} else if(this.parseTreeNode.isProcedureDefinition) {
this.setVariable(this.setName,this.getValue(),this.parseTreeNode.params,undefined,{isProcedureDefinition: true, configTrimWhiteSpace: this.parseTreeNode.configTrimWhiteSpace});
} else if(this.parseTreeNode.isWidgetDefinition) {
this.setVariable(this.setName,this.getValue(),this.parseTreeNode.params,undefined,{isWidgetDefinition: true, configTrimWhiteSpace: this.parseTreeNode.configTrimWhiteSpace});
} else {
this.setVariable(this.setName,this.getValue());
}
// Construct the child widgets
this.makeChildWidgets();
@@ -115,7 +111,7 @@ Selectively refreshes the widget if needed. Returns true if the widget or any of
*/
SetWidget.prototype.refresh = function(changedTiddlers) {
var changedAttributes = this.computeAttributes();
if(changedAttributes.name || changedAttributes.filter || changedAttributes.select || changedAttributes.tiddler || (this.setTiddler && changedTiddlers[this.setTiddler]) || changedAttributes.field || changedAttributes.index || changedAttributes.value || changedAttributes.emptyValue || changedAttributes.conditional ||
if(changedAttributes.name || changedAttributes.filter || changedAttributes.select || changedAttributes.tiddler || (this.setTiddler && changedTiddlers[this.setTiddler]) || changedAttributes.field || changedAttributes.index || changedAttributes.value || changedAttributes.emptyValue ||
(this.setFilter && this.getValue() != this.variables[this.setName].value)) {
this.refreshSelf();
return true;

14
editions/tw5.com/tiddlers/widgets/SetWidget.tid
View File

@@ -23,7 +23,6 @@ The content of the `<$set>` widget is the scope for the value assigned to the va
|filter |An optional filter to be evaluated and assigned to the variable (see "Filtered List Variable Assignment" below). The variable can be used with the <<.olink enlist>> operator |
|select |<<.from-version "5.1.14">> An optional zero-based index of the item to return from the filter output (see below) |
|emptyValue |The value to assign to the variable if the specified value is missing or empty (see below) |
|conditional |<<.from-version "5.3.0">> If set to "yes" then the assignment only occurs if the variable does not already have a value (defaults to "no") |
<<.tip """If the value of your variable is enclosed in double square brackets this might indicate that you are returning a list of values from the filter. To use a single title from the filter output without the double square brackets see ''Filtered Item Variable Assignment'' below.""">>
@@ -55,19 +54,6 @@ src='<$set name=anotherVariable value="myVariable">
<<<
!! Conditional Variable Assignment
This form of the set variable widget chooses one of two specified values according to whether a filter evaluates to an empty list. Here's an example that sets a variable according to whether the current tiddler is called "myMagicTitle":
<<<
<$macrocall $name='wikitext-example-without-html'
src="""<$set name="myVariable" filter="[all[current]field:title[myMagicTitle]]" value="It's magic" emptyValue="It's not magic">
<$text text=<<myVariable>>/>
</$set>""" />
<<<
!! Filtered List Variable Assignment
This form of the set variable widget evaluates the filter and assigns the result to the variable as a space-separated list (using double square brackets for titles containing spaces).