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Code Issues Releases Wiki Activity

Add support for anchored searches

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This commit is contained in:
Jeremy Ruston 2019-07-31 21:36:12 +01:00
parent dbaccf792d
commit 3afaa9de9a
4 changed files with 10 additions and 5 deletions
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1
core/modules/filters/search.js
View File

@ -43,6 +43,7 @@ exports.search = function(source,operator,options) {
caseSensitive: hasFlag("casesensitive"),
literal: hasFlag("literal"),
whitespace: hasFlag("whitespace"),
anchored: hasFlag("anchored"),
regexp: hasFlag("regexp"),
words: hasFlag("words")
});

10
core/modules/wiki.js
View File

@ -1065,6 +1065,7 @@ Options available:
invert: If true returns tiddlers that do not contain the specified string
caseSensitive: If true forces a case sensitive search
field: If specified, restricts the search to the specified field, or an array of field names
anchored: If true, forces all but regexp searches to be anchored to the start of text
excludeField: If true, the field options are inverted to specify the fields that are not to be searched
The search mode is determined by the first of these boolean flags to be true
literal: searches for literal string
@ -1079,12 +1080,13 @@ exports.search = function(text,options) {
invert = !!options.invert;
// Convert the search string into a regexp for each term
var terms, searchTermsRegExps,
flags = options.caseSensitive ? "" : "i";
flags = options.caseSensitive ? "" : "i",
anchor = options.anchored ? "^" : "";
if(options.literal) {
if(text.length === 0) {
searchTermsRegExps = null;
} else {
searchTermsRegExps = [new RegExp("(" + $tw.utils.escapeRegExp(text) + ")",flags)];
searchTermsRegExps = [new RegExp("(" + anchor + $tw.utils.escapeRegExp(text) + ")",flags)];
}
} else if(options.whitespace) {
terms = [];
@ -1093,7 +1095,7 @@ exports.search = function(text,options) {
terms.push($tw.utils.escapeRegExp(term));
}
});
searchTermsRegExps = [new RegExp("(" + terms.join("\\s+") + ")",flags)];
searchTermsRegExps = [new RegExp("(" + anchor + terms.join("\\s+") + ")",flags)];
} else if(options.regexp) {
try {
searchTermsRegExps = [new RegExp("(" + text + ")",flags)];
@ -1108,7 +1110,7 @@ exports.search = function(text,options) {
} else {
searchTermsRegExps = [];
for(t=0; t<terms.length; t++) {
searchTermsRegExps.push(new RegExp("(" + $tw.utils.escapeRegExp(terms[t]) + ")",flags));
searchTermsRegExps.push(new RegExp("(" + anchor + $tw.utils.escapeRegExp(terms[t]) + ")",flags));
}
}
}

1
editions/test/tiddlers/tests/test-filters.js
View File

@ -313,6 +313,7 @@ function runTests(wiki) {
expect(wiki.filterTiddlers("[search:modifier:regexp[(d|bl)o(ggs|e)]sort[title]]").join(",")).toBe("$:/TiddlerTwo,a fourth tiddler,one,Tiddler Three,TiddlerOne");
expect(wiki.filterTiddlers("[search:-modifier,authors:[g]sort[title]]").join(",")).toBe("$:/ShadowPlugin,Tiddler Three");
expect(wiki.filterTiddlers("[search:*:[g]sort[title]]").join(",")).toBe("$:/ShadowPlugin,Tiddler Three,TiddlerOne");
expect(wiki.filterTiddlers("[search:text:anchored[the]]").join(",")).toBe("TiddlerOne,$:/TiddlerTwo,Tiddler Three,a fourth tiddler");
});
it("should yield search results that have search tokens spread across different fields", function() {

3
editions/tw5.com/tiddlers/filters/search.tid
View File

@ -1,5 +1,5 @@
created: 20140410103123179
modified: 20181025082022690
modified: 20190731212738712
tags: [[Filter Operators]] [[Common Operators]] [[Field Operators]] [[Negatable Operators]]
title: search Operator
type: text/vnd.tiddlywiki
@ -40,5 +40,6 @@ The available flags are:
** ''regexp'': treats the search string as a regular expression. Note that the ''regexp'' option obviates the need for the older <<.olink regexp>> operator.
** ''words'': (the default) treats the search string as a list of tokens separated by whitespace, and matches if all of the tokens appear in the string (regardless of ordering and whether there is other text in between)
* ''casesensitive'': if present, this flag forces a case-sensitive match, where upper and lower case letters are considered different. By default, upper and lower case letters are considered identical for matching purposes.
* ''anchored'': <<.from-version "5.1.20">> anchors the search to the start of the string (applies to ''whitespace'', ''literal'' and ''words'' modes)
<<.operator-examples "search">>