Add support for [[wiki-style]] links in markdown (#9275)

* Add support for [[wiki-style]] links in markdown

1.  Support for [[wiki-style]] links ensures that they do not get broken
    by the prettier formatting by being wrapped over multiple lines.
2.  The contents of the link (between the `[[]]` brackets) are treated
    as raw text. This is because the various tools that rely on the
    `[[]]` syntax do not agree on what is allowable between them.

* Add a changelog document

* Update pr-9275.md

* Add additional tests as requested

* Add a fix for AST tests

* Fix issues with prose-wrap: "preserve"

* Lint

* Add a clean action for wikiLinks

Co-authored-by: fisker Cheung <lionkay@gmail.com>

changelog_unreleased/markdown/pr-9275.md

@@ -0,0 +1,21 @@
+#### Add support for [[wiki-style]] links in markdown (#9275 by @iamrecursion)
+
+1.  Support for `[[wiki-style]]` links ensures that they do not get broken by
+    the prettier formatting by being wrapped over multiple lines.
+2.  The contents of the link (between the `[[]]` brackets) are treated as raw
+    text. This is because the various tools that rely on the `[[]]` syntax do not
+    agree on what is allowable between them.
+
+<!-- prettier-ignore -->
+```markdown
+<!-- Input -->
+If I have a prose that forces a wiki link to end up crossing the [[line width limit]] like this. It's wrapped into an invalid state.
+
+<!-- Prettier stable -->
+If I have a prose that forces a wiki link to end up crossing the [[line width
+limit]] like this. It's wrapped into an invalid state.
+
+<!-- Prettier master -->
+If I have a prose that forces a wiki link to end up crossing the
+[[line width limit]] like this. It's wrapped into an invalid state.
+```

src/language-markdown/parser-markdown.js

@@ -36,6 +36,7 @@ function createParse({ isMDX }) {
       .use(isMDX ? mdx.esSyntax : identity)
       .use(liquid)
       .use(isMDX ? htmlToJsx : identity)
+      .use(wikiLink)
       .use(looseItems);
     return processor.runSync(processor.parse(text));
   };
@@ -96,6 +97,32 @@ function liquid() {
   };
 }
 
+function wikiLink() {
+  const entityType = "wikiLink";
+  const wikiLinkRegex = /^\[\[(?<linkContents>.+?)]]/s;
+  const proto = this.Parser.prototype;
+  const methods = proto.inlineMethods;
+  methods.splice(methods.indexOf("link"), 0, entityType);
+  proto.inlineTokenizers.wikiLink = tokenizer;
+
+  function tokenizer(eat, value) {
+    const match = wikiLinkRegex.exec(value);
+
+    if (match) {
+      const linkContents = match.groups.linkContents.trim();
+
+      return eat(match[0])({
+        type: entityType,
+        value: linkContents,
+      });
+    }
+  }
+
+  tokenizer.locator = function (value, fromIndex) {
+    return value.indexOf("[", fromIndex);
+  };
+}
+
 function looseItems() {
   const proto = this.Parser.prototype;
   const originalList = proto.blockTokenizers.list;

src/language-markdown/printer-markdown.js

@@ -40,7 +40,7 @@ const {
 } = require("./utils");
 
 const TRAILING_HARDLINE_NODES = new Set(["importExport"]);
-const SINGLE_LINE_NODE_TYPES = ["heading", "tableCell", "link"];
+const SINGLE_LINE_NODE_TYPES = ["heading", "tableCell", "link", "wikiLink"];
 const SIBLING_NODE_TYPES = new Set([
   "listItem",
   "definition",
@@ -179,6 +179,16 @@ function genericPrint(path, options, print) {
       const gap = backtickCount && !/^\s/.test(node.value) ? " " : "";
       return concat([style, gap, node.value, gap, style]);
     }
+    case "wikiLink": {
+      let contents = "";
+      if (options.proseWrap === "preserve") {
+        contents = node.value;
+      } else {
+        contents = node.value.replace(/[\t\n]+/g, " ");
+      }
+
+      return concat(["[[", contents, "]]"]);
+    }
     case "link":
       switch (options.originalText[node.position.start.offset]) {
         case "<": {
@@ -962,6 +972,10 @@ function clean(ast, newObj, parent) {
     newObj.value = ast.value.replace(/[\t\n ]+/g, " ");
   }
 
+  if (ast.type === "wikiLink") {
+    newObj.value = ast.value.trim().replace(/[\t\n]+/g, " ");
+  }
+
   if (ast.type === "definition" || ast.type === "linkReference") {
     newObj.label = ast.label
       .trim()

src/language-markdown/utils.js

@@ -13,6 +13,7 @@ const INLINE_NODE_TYPES = [
   "emphasis",
   "strong",
   "delete",
+  "wikiLink",
   "link",
   "linkReference",
   "image",

tests/markdown/wiki-link/__snapshots__/jsfmt.spec.js.snap

@@ -0,0 +1,776 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`additional-spacing.md - {"proseWrap":"always","singleQuote":true} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+singleQuote: true
+                                                                                | printWidth
+=====================================input======================================
+[[Additional spacing    within the link should be preserved]]
+
+=====================================output=====================================
+[[Additional spacing    within the link should be preserved]]
+
+================================================================================
+`;
+
+exports[`additional-spacing.md - {"proseWrap":"always"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+                                                                                | printWidth
+=====================================input======================================
+[[Additional spacing    within the link should be preserved]]
+
+=====================================output=====================================
+[[Additional spacing    within the link should be preserved]]
+
+================================================================================
+`;
+
+exports[`additional-spacing.md - {"proseWrap":"never"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "never"
+                                                                                | printWidth
+=====================================input======================================
+[[Additional spacing    within the link should be preserved]]
+
+=====================================output=====================================
+[[Additional spacing    within the link should be preserved]]
+
+================================================================================
+`;
+
+exports[`additional-spacing.md - {"proseWrap":"preserve"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "preserve"
+                                                                                | printWidth
+=====================================input======================================
+[[Additional spacing    within the link should be preserved]]
+
+=====================================output=====================================
+[[Additional spacing    within the link should be preserved]]
+
+================================================================================
+`;
+
+exports[`end-of-line.md - {"proseWrap":"always","singleQuote":true} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+singleQuote: true
+                                                                                | printWidth
+=====================================input======================================
+If I have some markdown text, it should be wrapped properly at the character limit for markdown.
+However, if I have a link that overflows the end of line it should be [[wrapped as a single entity]] like this.
+
+=====================================output=====================================
+If I have some markdown text, it should be wrapped properly at the character
+limit for markdown. However, if I have a link that overflows the end of line it
+should be [[wrapped as a single entity]] like this.
+
+================================================================================
+`;
+
+exports[`end-of-line.md - {"proseWrap":"always"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+                                                                                | printWidth
+=====================================input======================================
+If I have some markdown text, it should be wrapped properly at the character limit for markdown.
+However, if I have a link that overflows the end of line it should be [[wrapped as a single entity]] like this.
+
+=====================================output=====================================
+If I have some markdown text, it should be wrapped properly at the character
+limit for markdown. However, if I have a link that overflows the end of line it
+should be [[wrapped as a single entity]] like this.
+
+================================================================================
+`;
+
+exports[`end-of-line.md - {"proseWrap":"never"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "never"
+                                                                                | printWidth
+=====================================input======================================
+If I have some markdown text, it should be wrapped properly at the character limit for markdown.
+However, if I have a link that overflows the end of line it should be [[wrapped as a single entity]] like this.
+
+=====================================output=====================================
+If I have some markdown text, it should be wrapped properly at the character limit for markdown. However, if I have a link that overflows the end of line it should be [[wrapped as a single entity]] like this.
+
+================================================================================
+`;
+
+exports[`end-of-line.md - {"proseWrap":"preserve"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "preserve"
+                                                                                | printWidth
+=====================================input======================================
+If I have some markdown text, it should be wrapped properly at the character limit for markdown.
+However, if I have a link that overflows the end of line it should be [[wrapped as a single entity]] like this.
+
+=====================================output=====================================
+If I have some markdown text, it should be wrapped properly at the character limit for markdown.
+However, if I have a link that overflows the end of line it should be [[wrapped as a single entity]] like this.
+
+================================================================================
+`;
+
+exports[`exceeds-line-length.md - {"proseWrap":"always","singleQuote":true} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+singleQuote: true
+                                                                                | printWidth
+=====================================input======================================
+[[Here is an incredibly long wiki-style link that overflows the standard wrap width for markdown]].
+
+=====================================output=====================================
+[[Here is an incredibly long wiki-style link that overflows the standard wrap width for markdown]].
+
+================================================================================
+`;
+
+exports[`exceeds-line-length.md - {"proseWrap":"always"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+                                                                                | printWidth
+=====================================input======================================
+[[Here is an incredibly long wiki-style link that overflows the standard wrap width for markdown]].
+
+=====================================output=====================================
+[[Here is an incredibly long wiki-style link that overflows the standard wrap width for markdown]].
+
+================================================================================
+`;
+
+exports[`exceeds-line-length.md - {"proseWrap":"never"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "never"
+                                                                                | printWidth
+=====================================input======================================
+[[Here is an incredibly long wiki-style link that overflows the standard wrap width for markdown]].
+
+=====================================output=====================================
+[[Here is an incredibly long wiki-style link that overflows the standard wrap width for markdown]].
+
+================================================================================
+`;
+
+exports[`exceeds-line-length.md - {"proseWrap":"preserve"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "preserve"
+                                                                                | printWidth
+=====================================input======================================
+[[Here is an incredibly long wiki-style link that overflows the standard wrap width for markdown]].
+
+=====================================output=====================================
+[[Here is an incredibly long wiki-style link that overflows the standard wrap width for markdown]].
+
+================================================================================
+`;
+
+exports[`exceeds-line-length-in-prose.md - {"proseWrap":"always","singleQuote":true} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+singleQuote: true
+                                                                                | printWidth
+=====================================input======================================
+I have some markdown prose here, with a horrible run-on sentence that [[makes little sense at all as I continue it into an obscenely long wiki-style link thingy]].
+
+=====================================output=====================================
+I have some markdown prose here, with a horrible run-on sentence that
+[[makes little sense at all as I continue it into an obscenely long wiki-style link thingy]].
+
+================================================================================
+`;
+
+exports[`exceeds-line-length-in-prose.md - {"proseWrap":"always"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+                                                                                | printWidth
+=====================================input======================================
+I have some markdown prose here, with a horrible run-on sentence that [[makes little sense at all as I continue it into an obscenely long wiki-style link thingy]].
+
+=====================================output=====================================
+I have some markdown prose here, with a horrible run-on sentence that
+[[makes little sense at all as I continue it into an obscenely long wiki-style link thingy]].
+
+================================================================================
+`;
+
+exports[`exceeds-line-length-in-prose.md - {"proseWrap":"never"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "never"
+                                                                                | printWidth
+=====================================input======================================
+I have some markdown prose here, with a horrible run-on sentence that [[makes little sense at all as I continue it into an obscenely long wiki-style link thingy]].
+
+=====================================output=====================================
+I have some markdown prose here, with a horrible run-on sentence that [[makes little sense at all as I continue it into an obscenely long wiki-style link thingy]].
+
+================================================================================
+`;
+
+exports[`exceeds-line-length-in-prose.md - {"proseWrap":"preserve"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "preserve"
+                                                                                | printWidth
+=====================================input======================================
+I have some markdown prose here, with a horrible run-on sentence that [[makes little sense at all as I continue it into an obscenely long wiki-style link thingy]].
+
+=====================================output=====================================
+I have some markdown prose here, with a horrible run-on sentence that [[makes little sense at all as I continue it into an obscenely long wiki-style link thingy]].
+
+================================================================================
+`;
+
+exports[`exceeds-line-length-in-prose-broken.md - {"proseWrap":"always","singleQuote":true} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+singleQuote: true
+                                                                                | printWidth
+=====================================input======================================
+I have some markdown prose here, with a horrible run-on sentence that [[makes little sense at all as I
+continue it into an obscenely long wiki-style link thingy]].
+
+=====================================output=====================================
+I have some markdown prose here, with a horrible run-on sentence that
+[[makes little sense at all as I continue it into an obscenely long wiki-style link thingy]].
+
+================================================================================
+`;
+
+exports[`exceeds-line-length-in-prose-broken.md - {"proseWrap":"always"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+                                                                                | printWidth
+=====================================input======================================
+I have some markdown prose here, with a horrible run-on sentence that [[makes little sense at all as I
+continue it into an obscenely long wiki-style link thingy]].
+
+=====================================output=====================================
+I have some markdown prose here, with a horrible run-on sentence that
+[[makes little sense at all as I continue it into an obscenely long wiki-style link thingy]].
+
+================================================================================
+`;
+
+exports[`exceeds-line-length-in-prose-broken.md - {"proseWrap":"never"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "never"
+                                                                                | printWidth
+=====================================input======================================
+I have some markdown prose here, with a horrible run-on sentence that [[makes little sense at all as I
+continue it into an obscenely long wiki-style link thingy]].
+
+=====================================output=====================================
+I have some markdown prose here, with a horrible run-on sentence that [[makes little sense at all as I continue it into an obscenely long wiki-style link thingy]].
+
+================================================================================
+`;
+
+exports[`exceeds-line-length-in-prose-broken.md - {"proseWrap":"preserve"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "preserve"
+                                                                                | printWidth
+=====================================input======================================
+I have some markdown prose here, with a horrible run-on sentence that [[makes little sense at all as I
+continue it into an obscenely long wiki-style link thingy]].
+
+=====================================output=====================================
+I have some markdown prose here, with a horrible run-on sentence that [[makes little sense at all as I
+continue it into an obscenely long wiki-style link thingy]].
+
+================================================================================
+`;
+
+exports[`extra-brackets.md - {"proseWrap":"always","singleQuote":true} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+singleQuote: true
+                                                                                | printWidth
+=====================================input======================================
+A very long line of markdown with additional brackets as it wraps over the [[[end like this]]].
+
+
+=====================================output=====================================
+A very long line of markdown with additional brackets as it wraps over the
+[[[end like this]]].
+
+================================================================================
+`;
+
+exports[`extra-brackets.md - {"proseWrap":"always"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+                                                                                | printWidth
+=====================================input======================================
+A very long line of markdown with additional brackets as it wraps over the [[[end like this]]].
+
+
+=====================================output=====================================
+A very long line of markdown with additional brackets as it wraps over the
+[[[end like this]]].
+
+================================================================================
+`;
+
+exports[`extra-brackets.md - {"proseWrap":"never"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "never"
+                                                                                | printWidth
+=====================================input======================================
+A very long line of markdown with additional brackets as it wraps over the [[[end like this]]].
+
+
+=====================================output=====================================
+A very long line of markdown with additional brackets as it wraps over the [[[end like this]]].
+
+================================================================================
+`;
+
+exports[`extra-brackets.md - {"proseWrap":"preserve"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "preserve"
+                                                                                | printWidth
+=====================================input======================================
+A very long line of markdown with additional brackets as it wraps over the [[[end like this]]].
+
+
+=====================================output=====================================
+A very long line of markdown with additional brackets as it wraps over the [[[end like this]]].
+
+================================================================================
+`;
+
+exports[`extra-brackets-leading.md - {"proseWrap":"always","singleQuote":true} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+singleQuote: true
+                                                                                | printWidth
+=====================================input======================================
+A very long line of markdown with additional brackets as it wraps over [[[the end like this]].
+
+
+=====================================output=====================================
+A very long line of markdown with additional brackets as it wraps over
+[[[the end like this]].
+
+================================================================================
+`;
+
+exports[`extra-brackets-leading.md - {"proseWrap":"always"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+                                                                                | printWidth
+=====================================input======================================
+A very long line of markdown with additional brackets as it wraps over [[[the end like this]].
+
+
+=====================================output=====================================
+A very long line of markdown with additional brackets as it wraps over
+[[[the end like this]].
+
+================================================================================
+`;
+
+exports[`extra-brackets-leading.md - {"proseWrap":"never"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "never"
+                                                                                | printWidth
+=====================================input======================================
+A very long line of markdown with additional brackets as it wraps over [[[the end like this]].
+
+
+=====================================output=====================================
+A very long line of markdown with additional brackets as it wraps over [[[the end like this]].
+
+================================================================================
+`;
+
+exports[`extra-brackets-leading.md - {"proseWrap":"preserve"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "preserve"
+                                                                                | printWidth
+=====================================input======================================
+A very long line of markdown with additional brackets as it wraps over [[[the end like this]].
+
+
+=====================================output=====================================
+A very long line of markdown with additional brackets as it wraps over [[[the end like this]].
+
+================================================================================
+`;
+
+exports[`extra-brackets-trailing.md - {"proseWrap":"always","singleQuote":true} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+singleQuote: true
+                                                                                | printWidth
+=====================================input======================================
+A very long line of markdown with additional brackets as it wraps over [[the end like this]]].
+
+
+=====================================output=====================================
+A very long line of markdown with additional brackets as it wraps over
+[[the end like this]]].
+
+================================================================================
+`;
+
+exports[`extra-brackets-trailing.md - {"proseWrap":"always"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+                                                                                | printWidth
+=====================================input======================================
+A very long line of markdown with additional brackets as it wraps over [[the end like this]]].
+
+
+=====================================output=====================================
+A very long line of markdown with additional brackets as it wraps over
+[[the end like this]]].
+
+================================================================================
+`;
+
+exports[`extra-brackets-trailing.md - {"proseWrap":"never"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "never"
+                                                                                | printWidth
+=====================================input======================================
+A very long line of markdown with additional brackets as it wraps over [[the end like this]]].
+
+
+=====================================output=====================================
+A very long line of markdown with additional brackets as it wraps over [[the end like this]]].
+
+================================================================================
+`;
+
+exports[`extra-brackets-trailing.md - {"proseWrap":"preserve"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "preserve"
+                                                                                | printWidth
+=====================================input======================================
+A very long line of markdown with additional brackets as it wraps over [[the end like this]]].
+
+
+=====================================output=====================================
+A very long line of markdown with additional brackets as it wraps over [[the end like this]]].
+
+================================================================================
+`;
+
+exports[`multi-line.md - {"proseWrap":"always","singleQuote":true} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+singleQuote: true
+                                                                                | printWidth
+=====================================input======================================
+[[a
+b]]
+
+=====================================output=====================================
+[[a b]]
+
+================================================================================
+`;
+
+exports[`multi-line.md - {"proseWrap":"always"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+                                                                                | printWidth
+=====================================input======================================
+[[a
+b]]
+
+=====================================output=====================================
+[[a b]]
+
+================================================================================
+`;
+
+exports[`multi-line.md - {"proseWrap":"never"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "never"
+                                                                                | printWidth
+=====================================input======================================
+[[a
+b]]
+
+=====================================output=====================================
+[[a b]]
+
+================================================================================
+`;
+
+exports[`multi-line.md - {"proseWrap":"preserve"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "preserve"
+                                                                                | printWidth
+=====================================input======================================
+[[a
+b]]
+
+=====================================output=====================================
+[[a
+b]]
+
+================================================================================
+`;
+
+exports[`nested-link.md - {"proseWrap":"always","singleQuote":true} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+singleQuote: true
+                                                                                | printWidth
+=====================================input======================================
+Here's some text to ensure that the link and wiki link break the line [[a[b](http://www.example.com/)]]
+
+=====================================output=====================================
+Here's some text to ensure that the link and wiki link break the line
+[[a[b](http://www.example.com/)]]
+
+================================================================================
+`;
+
+exports[`nested-link.md - {"proseWrap":"always"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+                                                                                | printWidth
+=====================================input======================================
+Here's some text to ensure that the link and wiki link break the line [[a[b](http://www.example.com/)]]
+
+=====================================output=====================================
+Here's some text to ensure that the link and wiki link break the line
+[[a[b](http://www.example.com/)]]
+
+================================================================================
+`;
+
+exports[`nested-link.md - {"proseWrap":"never"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "never"
+                                                                                | printWidth
+=====================================input======================================
+Here's some text to ensure that the link and wiki link break the line [[a[b](http://www.example.com/)]]
+
+=====================================output=====================================
+Here's some text to ensure that the link and wiki link break the line [[a[b](http://www.example.com/)]]
+
+================================================================================
+`;
+
+exports[`nested-link.md - {"proseWrap":"preserve"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "preserve"
+                                                                                | printWidth
+=====================================input======================================
+Here's some text to ensure that the link and wiki link break the line [[a[b](http://www.example.com/)]]
+
+=====================================output=====================================
+Here's some text to ensure that the link and wiki link break the line [[a[b](http://www.example.com/)]]
+
+================================================================================
+`;
+
+exports[`simple.md - {"proseWrap":"always","singleQuote":true} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+singleQuote: true
+                                                                                | printWidth
+=====================================input======================================
+[[A simple wiki link on a single line]]
+
+=====================================output=====================================
+[[A simple wiki link on a single line]]
+
+================================================================================
+`;
+
+exports[`simple.md - {"proseWrap":"always"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+                                                                                | printWidth
+=====================================input======================================
+[[A simple wiki link on a single line]]
+
+=====================================output=====================================
+[[A simple wiki link on a single line]]
+
+================================================================================
+`;
+
+exports[`simple.md - {"proseWrap":"never"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "never"
+                                                                                | printWidth
+=====================================input======================================
+[[A simple wiki link on a single line]]
+
+=====================================output=====================================
+[[A simple wiki link on a single line]]
+
+================================================================================
+`;
+
+exports[`simple.md - {"proseWrap":"preserve"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "preserve"
+                                                                                | printWidth
+=====================================input======================================
+[[A simple wiki link on a single line]]
+
+=====================================output=====================================
+[[A simple wiki link on a single line]]
+
+================================================================================
+`;
+
+exports[`with-whitespace.md - {"proseWrap":"always","singleQuote":true} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+singleQuote: true
+                                                                                | printWidth
+=====================================input======================================
+[[ Here is a link with leading and trailing whitespace.    ]]
+
+=====================================output=====================================
+[[Here is a link with leading and trailing whitespace.]]
+
+================================================================================
+`;
+
+exports[`with-whitespace.md - {"proseWrap":"always"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "always"
+                                                                                | printWidth
+=====================================input======================================
+[[ Here is a link with leading and trailing whitespace.    ]]
+
+=====================================output=====================================
+[[Here is a link with leading and trailing whitespace.]]
+
+================================================================================
+`;
+
+exports[`with-whitespace.md - {"proseWrap":"never"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "never"
+                                                                                | printWidth
+=====================================input======================================
+[[ Here is a link with leading and trailing whitespace.    ]]
+
+=====================================output=====================================
+[[Here is a link with leading and trailing whitespace.]]
+
+================================================================================
+`;
+
+exports[`with-whitespace.md - {"proseWrap":"preserve"} format 1`] = `
+====================================options=====================================
+parsers: ["markdown"]
+printWidth: 80
+proseWrap: "preserve"
+                                                                                | printWidth
+=====================================input======================================
+[[ Here is a link with leading and trailing whitespace.    ]]
+
+=====================================output=====================================
+[[Here is a link with leading and trailing whitespace.]]
+
+================================================================================
+`;

tests/markdown/wiki-link/additional-spacing.md

@@ -0,0 +1 @@
+[[Additional spacing    within the link should be preserved]]

tests/markdown/wiki-link/end-of-line.md

@@ -0,0 +1,2 @@
+If I have some markdown text, it should be wrapped properly at the character limit for markdown.
+However, if I have a link that overflows the end of line it should be [[wrapped as a single entity]] like this.

tests/markdown/wiki-link/exceeds-line-length-in-prose-broken.md

@@ -0,0 +1,2 @@
+I have some markdown prose here, with a horrible run-on sentence that [[makes little sense at all as I
+continue it into an obscenely long wiki-style link thingy]].

tests/markdown/wiki-link/exceeds-line-length-in-prose.md

@@ -0,0 +1 @@
+I have some markdown prose here, with a horrible run-on sentence that [[makes little sense at all as I continue it into an obscenely long wiki-style link thingy]].

tests/markdown/wiki-link/exceeds-line-length.md

@@ -0,0 +1 @@
+[[Here is an incredibly long wiki-style link that overflows the standard wrap width for markdown]].

tests/markdown/wiki-link/extra-brackets-leading.md

@@ -0,0 +1,2 @@
+A very long line of markdown with additional brackets as it wraps over [[[the end like this]].
+

tests/markdown/wiki-link/extra-brackets-trailing.md

@@ -0,0 +1,2 @@
+A very long line of markdown with additional brackets as it wraps over [[the end like this]]].
+

tests/markdown/wiki-link/extra-brackets.md

@@ -0,0 +1,2 @@
+A very long line of markdown with additional brackets as it wraps over the [[[end like this]]].
+

tests/markdown/wiki-link/jsfmt.spec.js

@@ -0,0 +1,4 @@
+run_spec(__dirname, ["markdown"], { proseWrap: "always" });
+run_spec(__dirname, ["markdown"], { proseWrap: "always", singleQuote: true });
+run_spec(__dirname, ["markdown"], { proseWrap: "never" });
+run_spec(__dirname, ["markdown"], { proseWrap: "preserve" });

tests/markdown/wiki-link/multi-line.md

@@ -0,0 +1,2 @@
+[[a
+b]]

tests/markdown/wiki-link/nested-link.md

@@ -0,0 +1 @@
+Here's some text to ensure that the link and wiki link break the line [[a[b](http://www.example.com/)]]

tests/markdown/wiki-link/simple.md

@@ -0,0 +1 @@
+[[A simple wiki link on a single line]]

tests/markdown/wiki-link/with-whitespace.md

@@ -0,0 +1 @@
+[[ Here is a link with leading and trailing whitespace.    ]]