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Strongly improve search path

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This commit is contained in:
Guillaume Gomez 2017-11-19 13:41:56 +01:00
parent ad6324f6f7
commit c00eaa9969
1 changed files with 37 additions and 10 deletions
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47
src/librustdoc/html/static/main.js
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@ -376,7 +376,7 @@
for (var z = 0; z < split.length; ++z) {
if (split[z] === "") {
split.slice(z, 1);
split.splice(z, 1);
z -= 1;
}
}
@ -526,20 +526,47 @@
return literalSearch === true ? false : lev_distance;
}
function checkPath(startsWith, ty) {
var lev_total = 0;
function checkPath(startsWith, lastElem, ty) {
var ret_lev = MAX_LEV_DISTANCE + 1;
var path = ty.path.split("::");
if (ty.parent && ty.parent.name) {
path.push(ty.parent.name.toLowerCase());
}
if (startsWith.length > path.length) {
return MAX_LEV_DISTANCE + 1;
}
for (var i = path.length - 1; i < startsWith.length; ++i) {
var lev = levenshtein(startsWith[i], path[i]);
if (lev > MAX_LEV_DISTANCE) {
return MAX_LEV_DISTANCE + 1;
for (var i = 0; i < path.length; ++i) {
if (i + startsWith.length > path.length) {
break;
}
var lev_total = 0;
var aborted = false;
for (var x = 0; x < startsWith.length; ++x) {
var lev = levenshtein(path[i + x], startsWith[x]);
if (lev > MAX_LEV_DISTANCE) {
aborted = true;
break;
}
lev_total += lev;
}
if (aborted === false) {
var extra = MAX_LEV_DISTANCE + 1;
if (i + startsWith.length < path.length) {
extra = levenshtein(path[i + startsWith.length], lastElem);
}
if (extra > MAX_LEV_DISTANCE) {
extra = levenshtein(ty.name, lastElem);
}
if (extra < MAX_LEV_DISTANCE + 1) {
lev_total += extra;
ret_lev = Math.min(ret_lev,
Math.round(lev_total / (startsWith.length + 1)));
}
}
lev_total += lev;
}
return Math.round(lev_total / startsWith.length);
return ret_lev;
}
function typePassesFilter(filter, type) {
@ -701,7 +728,7 @@
}
var lev_add = 0;
if (paths.length > 1) {
var lev = checkPath(startsWith, ty);
var lev = checkPath(startsWith, paths[paths.length - 1], ty);
if (lev > MAX_LEV_DISTANCE) {
continue;
} else if (lev > 0) {