From ab0e20b4d0ad1e650126ffd0afa7d0ed6bd46da2 Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Sun, 11 Feb 2024 18:57:24 +0000
Subject: [PATCH] chore: refactor out and export endsWith

---
 quartz/util/path.ts |   49 +++++++++++++++++++++++++------------------------
 1 files changed, 25 insertions(+), 24 deletions(-)

diff --git a/quartz/util/path.ts b/quartz/util/path.ts
index 5cd79ba..dceb89b 100644
--- a/quartz/util/path.ts
+++ b/quartz/util/path.ts
@@ -23,22 +23,22 @@
 export function isFullSlug(s: string): s is FullSlug {
   const validStart = !(s.startsWith(".") || s.startsWith("/"))
   const validEnding = !s.endsWith("/")
-  return validStart && validEnding && !_containsForbiddenCharacters(s)
+  return validStart && validEnding && !containsForbiddenCharacters(s)
 }
 
 /** Shouldn't be a relative path and shouldn't have `/index` as an ending or a file extension. It _can_ however have a trailing slash to indicate a folder path. */
 export type SimpleSlug = SlugLike<"simple">
 export function isSimpleSlug(s: string): s is SimpleSlug {
   const validStart = !(s.startsWith(".") || (s.length > 1 && s.startsWith("/")))
-  const validEnding = !(s.endsWith("/index") || s === "index")
-  return validStart && !_containsForbiddenCharacters(s) && validEnding && !_hasFileExtension(s)
+  const validEnding = !endsWith(s, "index")
+  return validStart && !containsForbiddenCharacters(s) && validEnding && !_hasFileExtension(s)
 }
 
 /** Can be found on `href`s but can also be constructed for client-side navigation (e.g. search and graph) */
 export type RelativeURL = SlugLike<"relative">
 export function isRelativeURL(s: string): s is RelativeURL {
   const validStart = /^\.{1,2}/.test(s)
-  const validEnding = !(s.endsWith("/index") || s === "index")
+  const validEnding = !endsWith(s, "index")
   return validStart && validEnding && ![".md", ".html"].includes(_getFileExtension(s) ?? "")
 }
 
@@ -63,7 +63,7 @@
 }
 
 export function slugifyFilePath(fp: FilePath, excludeExt?: boolean): FullSlug {
-  fp = _stripSlashes(fp) as FilePath
+  fp = stripSlashes(fp) as FilePath
   let ext = _getFileExtension(fp)
   const withoutFileExt = fp.replace(new RegExp(ext + "$"), "")
   if (excludeExt || [".md", ".html", undefined].includes(ext)) {
@@ -73,7 +73,7 @@
   let slug = sluggify(withoutFileExt)
 
   // treat _index as index
-  if (_endsWith(slug, "_index")) {
+  if (endsWith(slug, "_index")) {
     slug = slug.replace(/_index$/, "index")
   }
 
@@ -81,21 +81,21 @@
 }
 
 export function simplifySlug(fp: FullSlug): SimpleSlug {
-  const res = _stripSlashes(_trimSuffix(fp, "index"), true)
+  const res = stripSlashes(trimSuffix(fp, "index"), true)
   return (res.length === 0 ? "/" : res) as SimpleSlug
 }
 
 export function transformInternalLink(link: string): RelativeURL {
   let [fplike, anchor] = splitAnchor(decodeURI(link))
 
-  const folderPath = _isFolderPath(fplike)
+  const folderPath = isFolderPath(fplike)
   let segments = fplike.split("/").filter((x) => x.length > 0)
-  let prefix = segments.filter(_isRelativeSegment).join("/")
-  let fp = segments.filter((seg) => !_isRelativeSegment(seg) && seg !== "").join("/")
+  let prefix = segments.filter(isRelativeSegment).join("/")
+  let fp = segments.filter((seg) => !isRelativeSegment(seg) && seg !== "").join("/")
 
   // manually add ext here as we want to not strip 'index' if it has an extension
   const simpleSlug = simplifySlug(slugifyFilePath(fp as FilePath))
-  const joined = joinSegments(_stripSlashes(prefix), _stripSlashes(simpleSlug))
+  const joined = joinSegments(stripSlashes(prefix), stripSlashes(simpleSlug))
   const trail = folderPath ? "/" : ""
   const res = (_addRelativeToStart(joined) + trail + anchor) as RelativeURL
   return res
@@ -206,8 +206,8 @@
   if (opts.strategy === "relative") {
     return targetSlug as RelativeURL
   } else {
-    const folderTail = _isFolderPath(targetSlug) ? "/" : ""
-    const canonicalSlug = _stripSlashes(targetSlug.slice(".".length))
+    const folderTail = isFolderPath(targetSlug) ? "/" : ""
+    const canonicalSlug = stripSlashes(targetSlug.slice(".".length))
     let [targetCanonical, targetAnchor] = splitAnchor(canonicalSlug)
 
     if (opts.strategy === "shortest") {
@@ -230,28 +230,29 @@
   }
 }
 
-function _isFolderPath(fplike: string): boolean {
+// path helpers
+function isFolderPath(fplike: string): boolean {
   return (
     fplike.endsWith("/") ||
-    _endsWith(fplike, "index") ||
-    _endsWith(fplike, "index.md") ||
-    _endsWith(fplike, "index.html")
+    endsWith(fplike, "index") ||
+    endsWith(fplike, "index.md") ||
+    endsWith(fplike, "index.html")
   )
 }
 
-function _endsWith(s: string, suffix: string): boolean {
+export function endsWith(s: string, suffix: string): boolean {
   return s === suffix || s.endsWith("/" + suffix)
 }
 
-function _trimSuffix(s: string, suffix: string): string {
-  if (_endsWith(s, suffix)) {
+function trimSuffix(s: string, suffix: string): string {
+  if (endsWith(s, suffix)) {
     s = s.slice(0, -suffix.length)
   }
   return s
 }
 
-function _containsForbiddenCharacters(s: string): boolean {
-  return s.includes(" ") || s.includes("#") || s.includes("?")
+function containsForbiddenCharacters(s: string): boolean {
+  return s.includes(" ") || s.includes("#") || s.includes("?") || s.includes("&")
 }
 
 function _hasFileExtension(s: string): boolean {
@@ -262,11 +263,11 @@
   return s.match(/\.[A-Za-z0-9]+$/)?.[0]
 }
 
-function _isRelativeSegment(s: string): boolean {
+function isRelativeSegment(s: string): boolean {
   return /^\.{0,2}$/.test(s)
 }
 
-export function _stripSlashes(s: string, onlyStripPrefix?: boolean): string {
+export function stripSlashes(s: string, onlyStripPrefix?: boolean): string {
   if (s.startsWith("/")) {
     s = s.substring(1)
   }

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