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sample/prod/talk/bundle/mithril-2.2.2/pathname/build.js

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+"use strict"
+
+var buildQueryString = require("../querystring/build")
+var assign = require("../util/assign")
+
+// Returns `path` from `template` + `params`
+module.exports = function(template, params) {
+	if ((/:([^\/\.-]+)(\.{3})?:/).test(template)) {
+		throw new SyntaxError("Template parameter names must be separated by either a '/', '-', or '.'.")
+	}
+	if (params == null) return template
+	var queryIndex = template.indexOf("?")
+	var hashIndex = template.indexOf("#")
+	var queryEnd = hashIndex < 0 ? template.length : hashIndex
+	var pathEnd = queryIndex < 0 ? queryEnd : queryIndex
+	var path = template.slice(0, pathEnd)
+	var query = {}
+
+	assign(query, params)
+
+	var resolved = path.replace(/:([^\/\.-]+)(\.{3})?/g, function(m, key, variadic) {
+		delete query[key]
+		// If no such parameter exists, don't interpolate it.
+		if (params[key] == null) return m
+		// Escape normal parameters, but not variadic ones.
+		return variadic ? params[key] : encodeURIComponent(String(params[key]))
+	})
+
+	// In case the template substitution adds new query/hash parameters.
+	var newQueryIndex = resolved.indexOf("?")
+	var newHashIndex = resolved.indexOf("#")
+	var newQueryEnd = newHashIndex < 0 ? resolved.length : newHashIndex
+	var newPathEnd = newQueryIndex < 0 ? newQueryEnd : newQueryIndex
+	var result = resolved.slice(0, newPathEnd)
+
+	if (queryIndex >= 0) result += template.slice(queryIndex, queryEnd)
+	if (newQueryIndex >= 0) result += (queryIndex < 0 ? "?" : "&") + resolved.slice(newQueryIndex, newQueryEnd)
+	var querystring = buildQueryString(query)
+	if (querystring) result += (queryIndex < 0 && newQueryIndex < 0 ? "?" : "&") + querystring
+	if (hashIndex >= 0) result += template.slice(hashIndex)
+	if (newHashIndex >= 0) result += (hashIndex < 0 ? "" : "&") + resolved.slice(newHashIndex)
+	return result
+}

sample/prod/talk/bundle/mithril-2.2.2/pathname/compileTemplate.js

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+"use strict"
+
+var parsePathname = require("./parse")
+
+// Compiles a template into a function that takes a resolved path (without query
+// strings) and returns an object containing the template parameters with their
+// parsed values. This expects the input of the compiled template to be the
+// output of `parsePathname`. Note that it does *not* remove query parameters
+// specified in the template.
+module.exports = function(template) {
+	var templateData = parsePathname(template)
+	var templateKeys = Object.keys(templateData.params)
+	var keys = []
+	var regexp = new RegExp("^" + templateData.path.replace(
+		// I escape literal text so people can use things like `:file.:ext` or
+		// `:lang-:locale` in routes. This is all merged into one pass so I
+		// don't also accidentally escape `-` and make it harder to detect it to
+		// ban it from template parameters.
+		/:([^\/.-]+)(\.{3}|\.(?!\.)|-)?|[\\^$*+.()|\[\]{}]/g,
+		function(m, key, extra) {
+			if (key == null) return "\\" + m
+			keys.push({k: key, r: extra === "..."})
+			if (extra === "...") return "(.*)"
+			if (extra === ".") return "([^/]+)\\."
+			return "([^/]+)" + (extra || "")
+		}
+	) + "$")
+	return function(data) {
+		// First, check the params. Usually, there isn't any, and it's just
+		// checking a static set.
+		for (var i = 0; i < templateKeys.length; i++) {
+			if (templateData.params[templateKeys[i]] !== data.params[templateKeys[i]]) return false
+		}
+		// If no interpolations exist, let's skip all the ceremony
+		if (!keys.length) return regexp.test(data.path)
+		var values = regexp.exec(data.path)
+		if (values == null) return false
+		for (var i = 0; i < keys.length; i++) {
+			data.params[keys[i].k] = keys[i].r ? values[i + 1] : decodeURIComponent(values[i + 1])
+		}
+		return true
+	}
+}

sample/prod/talk/bundle/mithril-2.2.2/pathname/parse.js

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+"use strict"
+
+var parseQueryString = require("../querystring/parse")
+
+// Returns `{path, params}` from `url`
+module.exports = function(url) {
+	var queryIndex = url.indexOf("?")
+	var hashIndex = url.indexOf("#")
+	var queryEnd = hashIndex < 0 ? url.length : hashIndex
+	var pathEnd = queryIndex < 0 ? queryEnd : queryIndex
+	var path = url.slice(0, pathEnd).replace(/\/{2,}/g, "/")
+
+	if (!path) path = "/"
+	else {
+		if (path[0] !== "/") path = "/" + path
+		if (path.length > 1 && path[path.length - 1] === "/") path = path.slice(0, -1)
+	}
+	return {
+		path: path,
+		params: queryIndex < 0
+			? {}
+			: parseQueryString(url.slice(queryIndex + 1, queryEnd)),
+	}
+}