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var summaryInclude = 100
var fuseOptions = {
shouldSort: true,
includeMatches: true,
threshold: 0.0,
tokenize: true,
location: 0,
distance: 100,
maxPatternLength: 32,
minMatchCharLength: 2,
keys: [
{ name: "title", weight: 0.8 },
{ name: "tags", weight: 0.3 },
{ name: "categories", weight: 0.3 },
{ name: "contents", weight: 0.7 }
]
}
var searchQuery = param("s")
if (searchQuery) {
$("#search-query").val(searchQuery)
executeSearch(searchQuery)
} else {
$("#search-string").replaceWith(searchQuery)
$("#search-results-length").replaceWith(0)
}
function executeSearch(searchQuery) {
$.getJSON("/index.json", function(data) {
var pages = data
var fuse = new Fuse(pages, fuseOptions)
var result = fuse.search(searchQuery)
console.log({ matches: result })
$("#search-string").replaceWith(searchQuery)
$("#search-results-length").replaceWith(result.length)
if (result.length > 0) {
populateResults(result)
} else {
$("#search-results").append("<p>No matches found</p>")
}
})
}
function populateResults(result) {
$.each(result, function(key, value) {
var contents = value.item.contents
var snippet = ""
var snippetHighlights = []
var tags = []
if (fuseOptions.tokenize) {
snippetHighlights.push(searchQuery)
} else {
$.each(value.matches, function(matchKey, mvalue) {
if (mvalue.key == "tags" || mvalue.key == "categories") {
snippetHighlights.push(mvalue.value)
} else if (mvalue.key == "contents") {
let startIdx = mvalue.indices[0][0]
let endIdx = mvalue.indices[0][1]
let start = 0
if (startIdx - summaryInclude > 0) {
start = startIdx - summaryInclude
}
let end = contents.length
if (endIdx + summaryInclude < contents.length) {
endIdx + summaryInclude
}
snippet += contents.substring(start, end)
snippetHighlights.push(
mvalue.value.substring(
startIdx,
endIdx - startIdx + 1
)
)
}
})
}
if (snippet.length < 1) {
snippet += contents.substring(0, summaryInclude * 2)
}
//pull template from hugo template definition
var templateDefinition = $("#search-result-template").html()
//replace values
var output = render(templateDefinition, {
key: key,
title: value.item.title,
link: value.item.permalink,
tags: value.item.tags,
categories: value.item.categories,
snippet: snippet
})
$("#search-results").append(output)
$.each(snippetHighlights, function(snipkey, snipvalue) {
$("#summary-" + key).mark(snipvalue)
})
})
}
function param(name) {
return decodeURIComponent(
(location.search.split(name + "=")[1] || "").split("&")[0]
).replace(/\+/g, " ")
}
function render(templateString, data) {
var conditionalMatches, conditionalPattern, copy
conditionalPattern = /\$\{\s*isset ([a-zA-Z]*) \s*\}(.*)\$\{\s*end\s*}/g
//since loop below depends on re.lastInxdex, we use a copy to capture any manipulations whilst inside the loop
copy = templateString
while (
(conditionalMatches = conditionalPattern.exec(templateString)) !== null
) {
if (data[conditionalMatches[1]]) {
//valid key, remove conditionals, leave contents.
copy = copy.replace(conditionalMatches[0], conditionalMatches[2])
} else {
//not valid, remove entire section
copy = copy.replace(conditionalMatches[0], "")
}
}
templateString = copy
//now any conditionals removed we can do simple substitution
var key, find, re
for (key in data) {
find = "\\$\\{\\s*" + key + "\\s*\\}"
re = new RegExp(find, "g")
templateString = templateString.replace(re, data[key])
}
return templateString
}
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