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[search] Use 'AND' instead of 'OR' on search terms

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The current search system uses the OR operator to concatenate search
terms. While results which are matched multiple times sort before
other matches, it is almost guaranteed that adding an additional term
to the search increments the number of results, which is rather
surprising.

https://bugzilla.gnome.org/show_bug.cgi?id=610955
This commit is contained in:
Florian Müllner
2010-06-07 01:09:15 +02:00
parent 8258c01d5c
commit a9c0dcbd6b
4 changed files with 116 additions and 81 deletions
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49
js/misc/docInfo.js
View File

@ -39,15 +39,12 @@ DocInfo.prototype = {
let term = terms[i];
let idx = this._lowerName.indexOf(term);
if (idx == 0) {
if (mtype != Search.MatchType.NONE)
return Search.MatchType.MULTIPLE;
mtype = Search.MatchType.PREFIX;
} else if (idx > 0) {
if (mtype != Search.MatchType.NONE)
return Search.MatchType.MULTIPLE;
mtype = Search.MatchType.SUBSTRING;
if (mtype == Search.MatchType.NONE)
mtype = Search.MatchType.SUBSTRING;
} else {
continue;
return Search.MatchType.NONE;
}
}
return mtype;
@ -109,39 +106,35 @@ DocManager.prototype = {
return this._docSystem.queue_existence_check(count);
},
initialSearch: function(terms) {
let multipleMatches = [];
_searchDocs: function(items, terms) {
let multiplePrefixMatches = [];
let prefixMatches = [];
let multipleSubtringMatches = [];
let substringMatches = [];
for (let i = 0; i < this._infosByTimestamp.length; i++) {
let item = this._infosByTimestamp[i];
for (let i = 0; i < items.length; i++) {
let item = items[i];
let mtype = item.matchTerms(terms);
if (mtype == Search.MatchType.MULTIPLE)
multipleMatches.push(item.uri);
if (mtype == Search.MatchType.MULTIPLE_PREFIX)
multiplePrefixMatches.push(item.uri);
else if (mtype == Search.MatchType.PREFIX)
prefixMatches.push(item.uri);
else if (mtype == Search.MatchType.MULTIPLE_SUBSTRING)
multipleSubtringMatches.push(item.uri);
else if (mtype == Search.MatchType.SUBSTRING)
substringMatches.push(item.uri);
}
return multipleMatches.concat(prefixMatches.concat(substringMatches));
return multiplePrefixMatches.concat(prefixMatches.concat(multipleSubtringMatches.concat(substringMatches)));
},
initialSearch: function(terms) {
return this._searchDocs(this._infosByTimestamp, terms);
},
subsearch: function(previousResults, terms) {
let multipleMatches = [];
let prefixMatches = [];
let substringMatches = [];
for (let i = 0; i < previousResults.length; i++) {
let uri = previousResults[i];
let item = this._infosByUri[uri];
let mtype = item.matchTerms(terms);
if (mtype == Search.MatchType.MULTIPLE)
multipleMatches.push(uri);
else if (mtype == Search.MatchType.PREFIX)
prefixMatches.push(uri);
else if (mtype == Search.MatchType.SUBSTRING)
substringMatches.push(uri);
}
return multipleMatches.concat(prefixMatches.concat(substringMatches));
return this._searchDocs(previousResults.map(Lang.bind(this,
function(url) {
return this._infosByUri[url];
})), terms);
}
};