new query param features, fixes

also added README

README.md

@@ -0,0 +1,52 @@
+# Makoto Markdown to HTML
+The Makoto parser converts markdown to HTML, powered by several hundred lines of spaghetti code. Specifically, it is a state machine (I think) that processes the markdown character by character.
+
+Makoto uses the MIT license.
+
+## Web Editor
+A web markdown editor (output in HTML, of course), is available at [makoto.prussia.dev](https://makoto.prussia.dev) or [makoto.pages.dev](https://makoto.pages.dev).
+
+### Query Params
+The web editor features various query params.
+
+- `help`: if "true", will display a quick intro to Makoto-flavoured markdown
+- `save`: if "true", will save the user inputted markdown to local storage, and will retrieve any existing saved text from local storage
+- `ignore`: if "all", all warnings will be ignored. Else, it can be a CSV (comma separated values) of warning types to ignore
+
+Example: [https://makoto.prussia.dev/?help=true&ignore=unknown-language,empty-link](https://makoto.prussia.dev/?help=true&ignore=unknown-language,empty-link)
+
+## HTML Output
+Some example CSS to style the HTML output can be found in `styles/makoto.css`.
+
+- Headings are given automatically generated ids ('header-0', 'header-1' etc) so url anchors (https://example.com/blog#header-1) are possible
+- Newlines will be put only after headings, paragraphs, and horizontal rules, all others will not be in final output (exceptions: no newlines in the last line, and newlines in code blocks are preserved)
+- Spaces at the beginning of the line are normally cut off in html, so spaces will be replaced with the html entity for spaces (  ) at the beginning of the line in code blocks
+- Lines in code blocks will be split with <br>s
+- If a language for the code block is provided, the parser will add a css class `code-<language name>` to the resulting code block div (which btw has class `code-block`)
+
+## Notable Differences From Standard Markdown
+- Only one newline between text is needed for a new paragraph, not two
+- Superscripts are supported! "^1^" become "<sup>1</sup>". Use these for footnotes too, I'm not implementing those
+- Underlined headers are not supported, just use a header and a horizontal rule
+- Nested blockquotes and lists won't work
+- The first row of a table will be assumed to be the header row, and don't bother with a row of dashes after it.
+- Also, the pipe ("|") in tables is mandatory at the end of the row, otherwise weird things will happen
+- Bold, italic, and other elements are not supported in tables
+
+## List of Warning Types
+- `unknown-language`
+- `image-incomplete`
+- `link-incomplete`
+- `italic-not-closed`
+- `bold-not-closed`
+- `superscript-not-closed`
+- `blockquote-broken`
+- `code-block-not-closed`
+- `unordered-list-broken`
+- `code-snippet-not-closed`
+- `too-much-header`
+- `heading-broken`
+- `horizontal-rule-broken`
+- `missing-image-alt`
+- `empty-link`
+- `weird-href`

index.html

@@ -16,7 +16,14 @@
         </ol>
       </div>
       <div id="preview-container" class="section">
-        <label for="dark-theme-toggle">Dark Theme</label><input id="dark-theme-toggle" type="checkbox">
+        <div id="preview-tools">
+          <label for="dark-theme-toggle">Dark Theme</label><input id="dark-theme-toggle" type="checkbox">
+          <br class="mobile-only">
+          <label for="html-toggle">Show HTML</label><input id="html-toggle" type="checkbox">
+          <br class="mobile-only">
+          <a id="see-docs" href="https://github.com/jetstream0/Makoto-Markdown-to-HTML/blob/master/README.md" target="_blank" rel="noopener noreferrer">See Docs</a>
+        </div>
+        <br>
         <div id="rendered-text">
         </div>
       </div>

makoto.ts

@@ -471,7 +471,7 @@ export function parse_md_to_html_with_warnings(md: string): ParseResult {
         blockquote_list = true;
       }
       continue;
-    } else if (char !== " " && chars[i-1] === "-" && (chars[i-2] === "\n" || i === 1)) {
+    } else if (char !== " " && char !== "-" && chars[i-1] === "-" && (chars[i-2] === "\n" || i === 1)) {
       warnings.push({
         type: "unordered-list-broken",
         message: "Missing space after unordered list",

styles/style.css

@@ -26,7 +26,7 @@ html, body {
 #editor {
   box-sizing: border-box;
   width: 95%;
-  width: calc(100% - 58px);
+  width: 100%;
   height: 95%;
   margin: 0;
   word-break: break-all;
@@ -56,15 +56,32 @@ html, body {
   color: #2d2d2d;
 }
 
-.line-warning {
+#preview-tools {
+  font-family: Arial, sans-serif;
+  float: left;
+  width: 100%;
+}
+
+.line-warning::before {
   position: relative;
   display: inline-block;
   width: 0;
   left: -58px;
   margin-top: -1px;
   font-size: 0.9em;
-}
-
-.line-warning::after {
   content: "⚠️";
 }
+
+.mobile-only {
+  display: none;
+}
+
+#see-docs {
+  float: right;
+}
+
+@media screen and (max-width: 950px) {
+  .mobile-only {
+    display: block;
+  }
+}

web.ts

@@ -2,7 +2,6 @@ import { parse_md_to_html_with_warnings, ParseResult } from './makoto.js';
 import type { Warning } from './endosulfan.js';
 
 /*todo:
-- FIX not being able to delete at start of line when there is warning on the line
 - show multiple warnings per line
 - show warnings that do not have line number
 - show warning type, ability to ignore warnings based on type
@@ -12,18 +11,24 @@ import type { Warning } from './endosulfan.js';
 let editor: HTMLTextAreaElement = document.getElementById("editor")! as HTMLTextAreaElement;
 let preview: HTMLElement = document.getElementById("rendered-text")!;
 let dark_theme_toggle: HTMLInputElement = document.getElementById("dark-theme-toggle")! as HTMLInputElement;
+let html_toggle: HTMLInputElement = document.getElementById("html-toggle")! as HTMLInputElement;
 
+let show_html: boolean = false;
 let unedited: boolean = true;
 
+let use_local_storage: boolean = false;
+
+let ignore_all_warnings: boolean = false;
+let ignore_warnings: string[] = [];
+
 function render_warnings(warnings: Warning[]) {
-  document.querySelectorAll(".line-warning").forEach((item: Element) => item.remove());
+  document.querySelectorAll(".line-warning").forEach((item: Element) => item.classList.remove("line-warning"));
   warnings.forEach((warning: Warning) => {
+    if (ignore_warnings.includes(warning.type)) return;
     if (warning.line_number) {
-      let line: Element = editor.children[warning.line_number-1];
+      let line: HTMLElement = editor.children[warning.line_number-1] as HTMLElement;
-      let warning_span: HTMLElement = document.createElement("SPAN");
+      line.classList.add("line-warning");
-      warning_span.classList.add("line-warning");
+      line.title = warning.message;
-      warning_span.title = warning.message;
-      line.insertBefore(warning_span, line.childNodes[0]);
     }
   });
 }
@@ -31,9 +36,18 @@ function render_warnings(warnings: Warning[]) {
 const refresh_html = () => {
   //go through the lines and get the editor text
   let editor_text: string = Array.from(editor.children).map((item) => item.textContent).reduce((added, current) => added+"\n"+current);
+  if (use_local_storage) {
+    localStorage.setItem("markdown", editor_text);
+  }
   let parsed: ParseResult = parse_md_to_html_with_warnings(editor_text);
-  render_warnings(parsed.warnings);
+  if (!ignore_all_warnings) {
-  preview.innerHTML = parsed.html;
+    render_warnings(parsed.warnings);
+  }
+  if (show_html) {
+    preview.innerText = parsed.html;
+  } else {
+    preview.innerHTML = parsed.html;
+  }
 };
 
 editor.addEventListener("keyup", () => {
@@ -74,14 +88,24 @@ const theme_change = () => {
 
 dark_theme_toggle.addEventListener("change", theme_change);
 
+const html_change = () => {
+  let changed: boolean = show_html !== html_toggle.checked;
+  if (changed) {
+    show_html = show_html ? false : true;
+    refresh_html();
+  }
+}
+
+html_toggle.addEventListener("change", html_change);
+
 //applies if the browser remembers what the user typed in
 if (editor.innerText.trim() !== "markdown goes here...") {
   unedited = false;
 }
 
-//give a quick intro to markdown
 let params: URLSearchParams = new URLSearchParams(window.location.search);
 if (params.get("help") === "true") {
+  //give a quick intro to markdown
   (editor.children[0] as HTMLElement).innerText = "# Makoto Markdown Parser";
   let extra_lines: string[] = [
     "This markdown parser is powered by spaghetti. You can have **bold text** or *italic text*, and even ^superscripts!^",
@@ -108,8 +132,36 @@ if (params.get("help") === "true") {
     additional_line.innerHTML = extra_lines[i];
     editor.appendChild(additional_line);
   }
-  //
+}
+
+if (params.get("save") === "true") {
+  //save to local storage, and retrieve from it
+  if (localStorage) {
+    use_local_storage = true;
+  }
+  let stored_markdown: string = localStorage.getItem("markdown");
+  if (stored_markdown) {
+    let extra_lines: string[] = stored_markdown.split("\n");
+    (editor.children[0] as HTMLElement).innerText = extra_lines.shift();
+    for (let i=0; i < extra_lines.length; i++) {
+      let additional_line: HTMLElement =  document.createElement("LI");
+      //needs to be .innerHTML so the html space entity can be parsed
+      additional_line.innerHTML = extra_lines[i];
+      editor.appendChild(additional_line);
+    }
+    unedited = false;
+  }
+}
+
+if (params.get("ignore")) {
+  //allow user to specify warnings to ignore
+  if (params.get("ignore") === "all") {
+    ignore_all_warnings = true;
+  } else {
+    ignore_warnings = params.get("ignore").split(",");
+  }
 }
 
 refresh_html();
 theme_change();
+html_change();