YOOOOOOOOOU BLYAAAAA RRRREEEEEEAAAAADDDDD AAAAAAAAAAAALLLLLLLLLL TTTTTEXXXXXXTTTTTTTSSSSS CAAAREEEEEEEEEEEEFULLLLLLYYYYY BLYAAAAAAAAA!!!:


"""

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Enhanced Code Editor</title>

    <!-- CodeMirror Styles -->
    <link href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/codemirror.min.css" rel="stylesheet">
    <link href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/theme/dracula.min.css" rel="stylesheet">

    <style>
        body {
            margin: 0;
            font-family: Arial, sans-serif;
            background-color: #2b2c2b;
            color: #ffffff;
            height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .tab-container {
            background-color: #21252b;
            padding: 5px;
            display: flex;
            justify-content: center;
        }

        .tab-container button {
            padding: 10px 20px;
            background-color: #44475a;
            border: 1px solid #282a36;
            color: #ffffff;
            border-radius: 4px 4px 0 0;
            cursor: pointer;
            margin: 0 5px;
        }

        .tab-container button.active {
            background-color: #61afef;
            border-bottom: 2px solid #282c34;
            color: #ffffff;
        }

        .editor-container {
            flex: 1;
            position: relative;
            overflow: hidden;
        }

        .CodeMirror {
            height: 100%;
            font-size: 14px;
            background-color: #282a36;
            font-family: 'Fira Code', monospace;
        }

        .CodeMirror-gutters {
            background-color: #21252b;
            color: #636d83;
        }

        .line-number-highlight {
            background-color: #ff79c6 !important;
            color: #2b2c2b !important;
            border-radius: 3px;
        }

        .buttons-container {
            display: flex;
            justify-content: space-between;
            padding: 10px;
            background-color: #21252b;
        }

        button {
            padding: 8px 16px;
            background-color: #61afef;
            border: none;
            border-radius: 4px;
            color: white;
            font-size: 14px;
            cursor: pointer;
        }

        button:hover {
            background-color: #528bff;
        }

        .search-container input {
            padding: 8px;
            border: 2px solid #528bff;
            border-radius: 4px;
            background-color: #1e1e1e;
            color: white;
        }

        .search-container input:focus {
            outline: none;
            border-color: #61afef;
        }

        .search-blink-error {
            animation: blink-error 0.5s linear 2;
        }

        @keyframes blink-error {
            0%, 100% {
                border-color: #ff5555;
            }

            50% {
                border-color: #ffffff;
            }
        }
    </style>
</head>

<body>
    <div class="tab-container">
        <button class="tab active" data-lang="html">HTML</button>
        <button class="tab" data-lang="css">CSS</button>
        <button class="tab" data-lang="js">JavaScript</button>
    </div>

    <div class="editor-container">
        <textarea id="editor"></textarea>
    </div>

    <div class="buttons-container">
        <div class="search-container">
            <input id="searchField" type="text" placeholder="Search or L#: Line Number">
            <button id="searchButton">Search</button>
        </div>
        <div>
            <button id="runButton">Run</button>
            <button id="saveButton">Save</button>
        </div>
    </div>

    <!-- CodeMirror Core Script -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/codemirror.min.js"></script>

    <!-- Syntax Highlighting Modes -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/mode/htmlmixed/htmlmixed.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/mode/css/css.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/mode/javascript/javascript.min.js"></script>

    <!-- Addons for Advanced Features -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/addon/edit/matchbrackets.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/addon/edit/closetag.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/addon/edit/closebrackets.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/addon/selection/active-line.min.js"></script>

    <!-- Addon for Matching Tags -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/addon/fold/xml-fold.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/addon/edit/matchtags.min.js"></script>

    <!-- Addon for Searching -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/addon/search/search.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.7/addon/search/searchcursor.min.js"></script>

    <script>
        const files = {
            html: "<!DOCTYPE html>\n<html>\n<head>\n<title>Document</title>\n</head>\n<body>\n\n</body>\n</html>",
            css: "body { background-color: #fff; }",
            js: "console.log('Hello, World!');"
        };
        let currentLanguage = "html";

        const editor = CodeMirror.fromTextArea(document.getElementById("editor"), {
            lineNumbers: true,
            matchBrackets: true,
            autoCloseBrackets: true,
            autoCloseTags: true,
            matchTags: { bothTags: true },
            styleActiveLine: true,
            theme: "dracula",
            mode: "htmlmixed",
        });

        editor.setValue(files[currentLanguage]);

        // Handle Tab Switching
        document.querySelectorAll(".tab").forEach(tab => {
            tab.addEventListener("click", () => {
                files[currentLanguage] = editor.getValue();
                currentLanguage = tab.dataset.lang;
                editor.setOption("mode", currentLanguage === "html" ? "htmlmixed" : currentLanguage);
                editor.setValue(files[currentLanguage]);
                document.querySelectorAll(".tab").forEach(item => item.classList.remove("active"));
                tab.classList.add("active");
            });
        });

        // Search and Line Highlighting
        document.getElementById("searchField").addEventListener("keydown", e => {
            if (e.key === "Enter") performSearch();
        });

        document.getElementById("searchButton").addEventListener("click", performSearch);

        function performSearch() {
            const query = document.getElementById("searchField").value.trim();
            if (query.toLowerCase().startsWith("l")) {
                const line = parseInt(query.slice(1)) - 1;
                if (isNaN(line) || line < 0 || line >= editor.lineCount()) {
                    blinkError();
                } else {
                    editor.setCursor({ line, ch: 0 });
                    editor.scrollIntoView({ line, ch: 0 });
                }
            } else {
                const cursor = editor.getSearchCursor(query, editor.getCursor());
                if (!cursor.findNext()) {
                    blinkError();
                } else {
                    editor.setSelection(cursor.from(), cursor.to());
                    editor.scrollIntoView(cursor.from());
                }
            }
        }

        function blinkError() {
            const searchField = document.getElementById("searchField");
            searchField.classList.add("search-blink-error");
            setTimeout(() => searchField.classList.remove("search-blink-error"), 500);
        }

        // Blob Run
        document.getElementById("runButton").addEventListener("click", () => {
            files[currentLanguage] = editor.getValue();
            const blobContent = `
                ${files.html}
                <style>${files.css}</style>
                <script>${files.js}<\/script>
            `;
            const blob = new Blob([blobContent], { type: 'text/html' });
            const url = URL.createObjectURL(blob);
            window.open(url);
        });

        // Save All Files
        document.getElementById("saveButton").addEventListener("click", () => {
            const zip = new JSZip();
            zip.file("index.html", files.html);
            zip.file("styles.css", files.css);
            zip.file("script.js", files.js);

            zip.generateAsync({ type: "blob" }).then(content => {
                const a = document.createElement("a");
                a.href = URL.createObjectURL(content);
                a.download = "project.zip";
                a.click();
            });
        });
    </script>
</body>

</html>

""".

if html tag/class/id/or namespace selected, then other closing tag should highlight in syntax or all analogical namespaces as in fullyfledged code editor.

basically if you select opening html tag, then its corresponding closing tag should be highlighted, and vice-versa

if you select opening or closing "<>", then it should highlight either of them in tree as in super fullyfledged code editors.

for example: we have similar classes or ids or whatever names:

"""
    <div class="controls">
      <div>
        <label for="model">Select Model:</label>
        <select id="model">
          <option value="model/stable-model-2-1">Stable model 2.1</model>
          <option value="model/stable-model-xl-base-1.0">model Diffusion XL</option>
          <option value="prompthero/openjourney">OpenJourney</option>
          <!-- model more model as model -->
        </select>
      </model>
      <div>

""".

we selecting one "model" and seeing all other "models" being highlighted all around.

do not do nested nonsenses in tags as for example html tag within a html tag = fail.

PRESERVE ALL ORIGINAL FUNCTIONALITIES, BUT ONLY IMPROVE ACTUAL THAT SYNTAX HIGHLIGHTMENTS!




pizdec paradox.

if:

"<", then seek in subsequen tree a closing ">"

if:

">", then seek in reverse through tree an opening "<"

if:

"selected text", then seek AROUND similarly "selected text reflection in current viewport scope"

what else there?


"Must only reflect within the current viewport scope, even if the document contains 1000+ lines, to avoid overload.".

yes, you scroll upward or downwward, it then rerenders strictly within current viewport dimensions a highlighted elements or any texts and rerender everything if you scrolling all around without specifically shifting a caret or interacting anyhow with the editing field. obviously if you interacted anyhow (except scrolling) with the editing field or reselected anything, then it should reset a highlightments.

about "<>":

1-oh blyad, we see an opening "<" eeehhh, blyaaaaaaa...
2-let's look what it refers to...
3-oh fuk, it is a div blyad "<div" oooaaaahh, blyaaaa...
4-let's seek further and see where do we met a closing tag for this as "/div>"
5-ugh blyad! we just found a first occurrance of this div tag
6-pizdec. let's just highlight it, and pizdec.


yes, we can store jusSelectedText inside some very safe array independently for further manipulations.


preserve obviously all original functionalities. you just need to improve usability, not ruin original INTENDED functionalities.

nu, it highlights but not distinguishing through trees as suppose to be in proper code editors.

also, deselection is not functioning properly on any events inside editing field but scrolling.

also this: "Uncaught TypeError: section is null".

nu, and pizdec. congratz: "Uncaught TypeError: a.findMatchingTag is not a function"

also, do there in all tabs default proper small code examples with multiple similarly identical classes/ids/namaspaces/tags for testing



some theory for you, robo:

"""

beyond deeply analyze the situation and popup with a dense smart solution without code.

Alright, let's step back and thoroughly analyze the issue to ensure the solution is comprehensive and effective.
Deep Analysis of the Problem

The main issue being experienced is that the syntax highlighting is only working for CSS, and HTML/JavaScript highlighting doesn't work. There are a few probable reasons for this:
1. Token Type Differentiation by CodeMirror

    CodeMirror uses modes to parse code into "tokens" (e.g., tags, attributes, variables, classes, method names). These tokens are type-specific.
        CSS: Identifiers like classes, IDs, properties, and values are parsed efficiently, as they follow a simpler structure.
        HTML: It treats tokens differently (tag, attribute, or variable) and requires advanced handling to match elements like tags, IDs, or classes in both the opening and closing structure.
        JavaScript: The token structure is more dynamic (recognizing variables, methods, arguments, keywords, etc.) and doesn't have distinct markers for "style-like" entities.

Impact: Highlighting only CSS works because it has the fewest variations in its token structure. JavaScript and HTML require more advanced matching for their complexity.
2. Incorrect Regular Expressions

    When searching for tokens to match them elsewhere in the code, the logic uses regular expressions (regex). These regexes:
        May fail when the token contains special characters (like <, >, or quotes).
        May get overly broad in matches, causing excessive performance overhead or missed matches entirely due to improper scoping (e.g., matching parts of unrelated code).

Impact: Tokens in HTML (like tags) or JavaScript (like variables or IDs) aren't matched or highlighted because:

    Regex fails to escape special characters.
    No proper scoping for interrelated tokens (e.g., <div> to highlight both opening and closing tags).

3. Limitation in Marker Management

    CodeMirror uses markers to add a visual class to matched text, but excessive markers:
        Overload the editor if too many matches exist across a long file.
        Cause potential conflicts when switching modes (like HTML to CSS).
    Markers for dynamic tokens (like in HTML and JavaScript) often get overridden or cleared incorrectly.

Impact: Highlighting matches in HTML and JavaScript fails silently and might be improperly cleared.
4. Dynamic Interaction in HTML/JavaScript

    HTML and JavaScript are inherently dynamic:
        HTML requires pairing tags (e.g., <div>...</div>) while maintaining nesting integrity.
        JavaScript involves a context-sensitive language with variables, scopes, and function chains.

Special handling is needed to:

    Match opening and closing HTML tags reliably (e.g., <div> highlights its closing </div>).
    Handle scopes and chained variables in JavaScript.

Impact: Without this dynamic understanding, matches are often skipped or fail entirely outside CSS.
5. Lack of Context-Sensitive Highlighting

    Current implementation applies global highlighting (e.g., matching all instances of a token across the file).
    A purely global strategy works well for CSS but fails for:
        Scoped HTML tags (e.g., nested <div>s).
        Context-sensitive JavaScript variables (var inside a function vs. outside).

Impact: Token matches in HTML/JavaScript fail due to context mismatch or nesting-related issues not being handled.
What a Comprehensive Smart Solution Needs

To solve this problem properly, the solution must:

    Implement Token-Specific Matching Per Language:
        HTML: Ensure it matches:
            Tags (e.g., opening <div> and closing </div> while respecting nesting).
            Attributes (e.g., id="header", class="shared-class").
        CSS: Keep matching simple identifiers (IDs, classes, properties).
        JavaScript: Match variables, functions, DOM selectors, etc.

    Dynamic Highlighting Behavior:
        Respect the language context (e.g., highlight tag pairs only in HTML, function vars only in JavaScript).
        Avoid applying CSS rules to HTML/JavaScript.

    Efficient Marker Management:
        Use appropriate markers per language without redundancy or overload.
        Ensure performance is maintained for long files by clearing unused markers properly.

    Regex Optimization:
        Properly escape special characters like <, /, > for HTML.
        Distinguish between whole tokens and substrings.

    Pairing Logic for HTML:
        Implement reliable logic to pair matching tags (like <div> and </div>) by understanding nesting hierarchy.

    Handle Edge Cases:
        Complex nesting in HTML (e.g., <div><span>Text</span></div>).
        Variables and chaining in JavaScript (e.g., obj.key.subkey).

Proposed Dense Smart Solution Without Code
Step 1: Token Consolidation

    Ensure every token (e.g., header, .shared-class) is extracted cleanly per mode:
        HTML Mode:
            Tags (tag type) → Match opening and closing pairs.
            Attributes (attribute/string) → Highlight all matching instances of the same ID/class.
        CSS Mode:
            Classes and IDs → Match class, id selectors globally.
        JavaScript Mode:
            Variables (variable) → Highlight all references.
            Strings (string) → Match exact instances.

Step 2: Nesting-Aware Parsing for HTML

    Establish a stack-based logic:
        Push every opening tag (<div>) into a stack.
        Highlight both the tag itself and the matching closing tag when a pair is detected.

Step 3: Language-Specific Match Rules

    For HTML:
        Treat all tag tokens as pairing opportunities.
        Highlight sibling elements with the same id or class.
    For CSS:
        Simple global matching for selectors (e.g., .shared-class).
    For JavaScript:
        Match variable reuse in functions or DOM targeting (e.g., document.getElementById('header')).

Step 4: Regex Safeguards

    Escape all special characters (<, >, ., etc.) when generating queries to avoid syntax issues.

Step 5: Marker Management

    Store all existing markers in a central list and clear them on each cursor movement.
    Avoid excessive markers on large files by limiting scope intelligently (e.g., top 100 matches visible in the viewport).

Step 6: Focus on Performance

    Use search cursors efficiently by matching only visible text in the viewport to limit processing overhead.

Step 7: Testing

    Add diverse test cases for each mode:
        HTML: Nested tags, identical classes/IDs.
        CSS: Complex selectors.
        JavaScript: Variable/function reuse.

By following this step-by-step systematic improvement, the editor can robustly handle syntax highlighting in HTML, CSS, and JavaScript while maintaining performance and ensuring correctness.

Does this analysis align with your expectations? Let me know if you'd like me to expand on implementation techniques or provide more specific guidance!

pizdec paradox.

if:

"<", then seek in subsequen tree a closing ">"

if:

">", then seek in reverse through tree an opening "<"

if:

"selected text", then seek AROUND similarly "selected text reflection in current viewport scope"

what else there?

Ah, blyad (😄), I see you're diving deeper into the exact conditions of behavior we need for the editor! Let's properly outline and expand on the behaviors and cases we need to solve the "pizdec paradox."

We'll break it into distinct, logical conditions that can compose a comprehensive solution. Here's what the editor needs to handle step by step:
Updated Core Scenarios & Behaviors
1. Basic Tag Matching:

When encountering < or > tags, the editor needs to:

    If < (Opening Tag):
        Seek forward to find the nearest closing > to identify the complete tag (e.g., <div>, <p class="text">).
        Then, search forward in the tree for the matching closing tag (</tag>), while respecting the DOM nesting hierarchy.
    If > (Closing Tag):
        Seek backward to:
            Find the nearest preceding < to identify the complete tag (e.g., <div>, <p>, etc.).
            Then, search backward in the tree for the matching opening tag (<tag> again respecting nesting).

2. Reflectively Highlight Similar Tags/IDs/Classes in the Current Viewport

When any text is selected, the editor should:

    Make a viewport-aware search to highlight all matching identifiers like:
        HTML:
            Tags (e.g., <div> highlights all <div>s visible).
            Classes/IDs (e.g., class="button" matches the current viewport instances of .button).
        CSS:
            Class/ID selectors (.shared-class, #header) should match large code efficiently.
        JavaScript:
            Variables (const sharedVariable), DOM selectors (getElementById("header")).

Reflective Highlighting Criteria:

    Must only reflect within the current viewport scope, even if the document contains 1000+ lines, to avoid overload.
    For nonspecific matches (e.g., sharedVariable), highlight matches case sensitively to ensure correctness.

3. Dynamic Context Handling for Tag Pairs

    HTML is tree-structured, so correct detection requires nested pairing logic:
        <div><span>Hello</span></div>
        If a <div> is selected, the final highlight should include the matching </div> without being confused by the <span> nesting.
        Even deeply nested structures must resolve correctly:

        <div>
          <div>
            <p>Some text</p>
          </div>
        </div>

            Clicking the outer <div> must highlight only its outer counterpart, not inner structures.

4. Efficient Token-Based Highlighting Logic

    The editor should scan tokens parsed by the CodeMirror modes:
        HTML:
            Tokens like tag, attribute, string, and property are easy markers.
            Highlight all matching tokens based on the selected one (e.g., matching id="header" or class="shared-class").
        CSS:
            CSS tokens (class, id, property rules) are direct matches, e.g., .shared-class highlights all .shared-class instances.
        JavaScript:
            Handles variables (variable), DOM selectors, and method chains via parsed token types.

5. Limitless Nested Pair Management for HTML Tags

    For more complex structures:

    <div>
        <div>
            <span>
                Hello
            </span>
        </div>
    </div>

        If you pick an outer <div>, traverse while respecting nesting:
            Track how many <div>s have opened/closed to pair the correct one.
            Ensure logic avoids matching inner tags (e.g., don't highlight the inner closing </div> accidentally).

6. Escape Handling for Safety

Tokens often include special characters, which must be properly escaped for regex and matching:

    HTML special characters: <, >, /, = should be processed safely.
    JavaScript/CSS special conventions: Handle -, ., $, /, [ ], (, ) in classes, IDs, and variable names.

7. Edge Cases for All Scenarios

Every scenario has its special edge cases to resolve, such as:

    Self-closing tags in HTML:
        Example: <br /> or <img src="..." /> shouldn't try to match a nonexistent closing tag.
    Empty tags or attributes:
        Example: <input> without a closing tag shouldn't break the logic, nor should <div class="">.
    CSS Overlapping Selectors:
        Handle situations where .hello, .shared-class matches compound selectors efficiently.
    Dynamic JavaScript Scoping:
        Ensure variable matching respects block scope:

        const btn = 'Button';
        if (true) {
          const btn = 'New Button'; // Should distinguish this scope if selected.
        }

8. Context Limitations Based on the Current Language

    The editor should limit functionality to the currently active language:
        HTML doesn't need to highlight JavaScript variables.
        CSS doesn't care about DOM closing tags.

Summary of Needed Behaviors

Here’s the comprehensive behavior breakdown the editor needs:
Action 	Behavior
< or > Click 	Find the immediate matching tag and, if applicable, its paired opening/closing counterpart (respecting tree hierarchy).
Selected Token Highlighting 	Match identical classes, IDs, tags, or variables in current viewport scope only for efficiency.
HTML Tag Pairing 	Pair opening and closing HTML tags while respecting nested structures.
Nested Tag Matching 	Solve nesting with a stack-based algorithm to match tags correctly.
CSS Match Logic 	Match .class or #id selectors across code, including grouped selectors (e.g., .foo, .bar)
JavaScript Variable Highlighting 	Match variable names, DOM selectors (getElementById), and function names within the correct scope.
Escape Handling 	Safely handle all special characters (<, >, ., etc.) in token names and attributes.
Language-Specific Context 	Only process relevant rules (e.g., tags for HTML, selectors for CSS, valid identifiers for JavaScript).
Performance 	Limit highlight operations to only the current viewport scope for efficiency, especially on large files.
Edge Cases 	Handle self-closing tags, block-scope variables, and compound identities gracefully.
How to Execute These Behaviors:

To build this into an editor, you'll need:

    A Stack-Based Parser for Nested HTML Pairing:
        Use a stack to manage nested tags like <div>...</div>.

    Efficient Regex/Context Matching:
        Each token requires a properly escaped regex to avoid misbehavior.

    Viewport-Scoped Search:
        Any matching should be limited to tokens visible in the current viewport for performance.

    Dynamic Highlighting Per Language:
        Token parsing should respect HTML/CSS/JavaScript rules while being language-specific.

    Immediate Marker Cleanup:
        Always clear old markers on cursor activity to prevent overloads.

By addressing these behaviors, a modern, high-performance editor should function well without "blyad" issues. 😁 Let me know what you'd like clarified further!

"Must only reflect within the current viewport scope, even if the document contains 1000+ lines, to avoid overload.".

yes, you scroll upward or downwward, it then rerenders strictly within current viewport dimensions a highlighted elements or any texts and rerender everything if you scrolling all around without specifically shifting a caret or interacting anyhow with the editing field. obviously if you interacted anyhow (except scrolling) with the editing field or reselected anything, then it should reset a highlightments.

about "<>":

1-oh blyad, we see an opening "<" eeehhh, blyaaaaaaa...
2-let's look what it refers to...
3-oh fuk, it is a div blyad "<div" oooaaaahh, blyaaaa...
4-let's seek further and see where do we met a closing tag for this as "/div>"
5-ugh blyad! we just found a first occurrance of this div tag
6-pizdec. let's just highlight it, and pizdec.

Haha, I love this energy! Let's break this down blyad by blyad and propose how to implement such functionality step-by-step, with viewport-sensitive renderings and proper logical conditions for < and > tag handling.
Viewport-Aware Highlighting Mechanism

Highlights must be limited to the visible area (viewport) to:

    Improve performance and avoid overload on large files.
    Reflect only what's relevant and render fast during scrolling.

Viewport-Aware Highlighting Conditions

    Text Selection as Trigger:
        CASE 1: If a section of text (selected text) is selected:
            Only highlight identical occurrences visible in the current viewport (no global matching across all 1000+ lines).
            Preserve highlights while scrolling if the selected text remains valid inside the viewport.
        CASE 2: If the selection changes (via caret interaction, reselecting text, or field modifications):
            Reset all highlights and apply new ones based on the updated selection or caret position.

    **React to scrolling-only events:
        If you're scrolling without caret interaction:
            Automatically rerender highlights as new parts of the code become visible:
                Dynamic token highlights stay viewport-bound—tags, classes, variables, or selected text appear as you scroll upwards or downwards.
            Once the viewport goes out of range for existing highlights, clean them up to avoid rendering overhead.

Implementation Flow

    Track Scroll Events Dynamically:
        Use a listener for the editor’s scroll event to detect when the user scrolls up or down.
        Check the viewport's current range of lines (CodeMirror has getViewport() for getting visible lines).

    Repeated Updates Within Viewport:
        Each time scrolling occurs:
            Analyze visible tokens for the selected class, ID, or variable in the viewport range only.
            Render highlights only in this range, avoiding overload on the entire document.

    Perform Rerendering:
        When scrolling stops or slows down (debounced by a short delay), refresh highlights in the current viewport, clearing anything out of bounds.
        Reset criteria: If the user interacts via typing, caret placement, or reselecting, clear all active highlights and rebuild from the new state.

Why Rerender After Scrolling or Interaction?

    Large documents (e.g., 1000+ lines) don't affect performance, as highlights only exist where visible.
    New highlights are generated on-demand per viewport change or interaction.
    Redundant highlights out of view are erased to free memory.

Logic for < and > Pair Matching

Alright, let’s solve step-by-step what to do when we encounter an < opening tag or > closing tag, based on your steps.
Behavior for < (Opening Tag)

    Oh blyad, < detected! 🫡
        Check the current token using the CodeMirror API—what does < belong to?
            If it’s part of a tag (e.g., <div, <p, <custom-tag>):
                Start prefix parsing to finish reading everything in the opening tag (e.g., <div class="text">).
        Extract the tag type (e.g., div, span) from the token.

    Seek forward to find the closing tag!
        Begin scanning forward through the document tree after the <div>.
        Account for nesting behavior:
            If another <div> is encountered before its closing </div>, treat it as a nested tag and keep it in a stack.
        When </div> is found outside any nested scopes, highlight the complete matching range.

    Highlight both the opening and closing tags.

Behavior for > (Closing Tag)

    Oh pizdec, > detected!
        Check if it’s part of a valid HTML structure (e.g., </div> or part of an opened tag <div>).
            If </ is present, identify the tag name immediately (div, span, etc.).

    Seek backwards through the tree to find its opening counterpart.
        Traverse the document in reverse. Use a stack-based system to ensure nesting is resolved properly.
        Pair this </div> with its corresponding opening <div>.

    Highlight both tags and end content swiftly.

Stack-Based Example for Nested Tag Matching

Given nested structure:

<div>
  <div>
    <p>Text</p>
  </div>
</div>

Logic flow when encountering:

    <div>:
        Push div into the stack.
        Parse forward until matching nested closing </div>, ignoring <p>.

    </div>:
        Pop div from the stack to confirm its match, only closing the correct tag instance.

Combined Matching Example:

<div>
  <div>
    <p class="text">Hello</p>
  </div>
</div>

Select <div> (first instance):

    Highlights:
        Opening <div> at the top of the tree.
        Matching closing </div> at the very bottom.

Full Use Case Integration
📚 What Happens in the Editor?

    Start Behavior:
        User scrolls around → Highlights dynamically reevaluated for what’s visible.
        User interacts via caret, typing, or selecting text → Resets all highlights and rebuilds based on updated viewport tokens.

    Triggering Highlighting:
        HTML:
            Clicking < triggers a tag-match lookup (forward for </tag> or backward if closing).
        CSS:
            Selecting .shared-class highlights only visible occurrences in the stylesheet.
        JavaScript:
            Clicking sharedVariable highlights all scope-bound variables.

    Performance Guarantee:
        All logic remains scoped only to the viewport, even if the file has thousands of lines.
        Alignment is recalculated per event (scrolling/interacting).

Does This Outline Match the Blyad Energy?

This roadmap creates a viewport-smart editor while keeping everything as snappy and functional as you’re describing. If more refinements, layer intentions clearly. 😎

yes, we can store jusSelectedText inside some very safe array independently for further manipulations.

not sure if it is a right method in programmings, but looks logical.

Using an independent array (or any form of storage) to store justSelectedText or similar values for independent, temporary manipulations is completely valid and actually a widely-used pattern in modern programming.
Why Use justSelectedText in a Safe Array?

Let’s think about why this idea makes sense logically and how it fits into the programming context:

    Local State Management:
        By storing justSelectedText in a dedicated storage mechanism, you're decoupling it from the active rendering.
        This prevents accidental overwrites or interference with ongoing operations (e.g., rerendering or text modification).

    Reusable Across Interaction Lifecycles:
        When the user scrolls, highlights, or selects text, the justSelectedText can persist safely and be referenced after defined interactions (like scrolling or clicking elsewhere).
        You avoid directly attaching it to transient events (like mouse movement or key presses), which can interfere with dynamic updates.
        Example: If a user scrolls after selecting, you use justSelectedText to dynamically rerender highlights on every interaction event without loss.

    Isolated & Stateless Logic:
        Storing justSelectedText in a neutral location forces you to keep your code stateless where possible. You only depend on this "safe array" for further manipulations, and once you're done, you clear or update it safely.

    Logical Separation of Data:
        Treating justSelectedText as an isolated model ensures it’s manipulated purposefully and predictably.
        Example: You store all selected matches in the array before highlighting and flush/reset it when user inputs change, which makes debugging easier.

When Should You Use justSelectedText (Temporary Array)?

Let’s identify the ideal moments to use justSelectedText in the editor workflow:
1. Text Selection Events

    When the user selects a chunk of text, the selected text gets stored in your array (justSelectedText).
    This allows for temporary pre-processing:
        E.g., Check for viewport-visible matches (search in the visible area for matching text).
        E.g., Use this "snapshot" to highlight within the highlighting system.

2. Resetting Highlights on Interaction

    When reset conditions are met (e.g., user reselects different text or modifies the current text in any way):
        Clear justSelectedText and refill/recalculate it as necessary.

Example Reset Logic:

// Clear on updates
function resetHighlights() {
    justSelectedText = []; // Clear the temporary tracker
    removeExistingHighlights(); // Remove all rendered highlights
}

3. Viewport-Scoped Scrolling

    While scrolling, highlights must dynamically adjust to fit viewport content:
        Text Matching Logic:
            Compare tokens/text values in justSelectedText against the viewport content.
            Dynamically remove irrelevant data while scrolling upward/downward.
            Add new matches as they are rendered in the viewport.

// Example usage during scrolling
function handleViewportScroll() {
    const viewport = editor.getViewport(); // Get visible lines
    justSelectedText.forEach(match => {
        if (isInViewport(match, viewport)) {
            addHighlightForMatch(match); // Render dynamically if visible
        } else {
            removeHighlightForMatch(match); // Remove out-of-view highlights
        }
    });
}

The Logical Flow for justSelectedText

To ensure clarity, let’s chart out how this flow works step-by-step:
Stage 1: Selection

    User selects text → Add selected text to justSelectedText[].
    Example content of the array after selection:

justSelectedText = ["p-class"]; // Let's assume `p-class` was selected

Stage 2: Highlight Within Current Viewport

    Matching logic dynamically processes:
        Align with the viewport-visible lines (Content rendered within CodeMirror's getViewport()).
        Highlight only tokens matching justSelectedText.

Stage 3: Detect Conditions to Reset Highlights

    If the user:
        Modifies the text.
        Selects something new.
        Typing or caret change occurs.
    Then:
        Clear and flush justSelectedText along with any existing highlights.

Stage 4: Manage Scrolling (Viewport-Sensitive Rendering)

    As the user scrolls:
        Use justSelectedText to look for matches inside the new visible area.
        Dynamically update highlights only within current bounds.

Is Using an Array the Right Programming Method?

Using an array (or similar data structure like a Set or Map) for temporary storage is indeed a very sensible, adaptable solution. Let’s evaluate why:
1. Performance-Friendly for Short-Term Storage

    Arrays excel at tasks like:
        Adding/removing selected text.
        Iterating through stored values to apply changes dynamically.
        Keeping track of user-selected tokens temporarily.
    Since arrays are linear in growth, iterating for viewport-bound checks will remain fast and predictable.

2. Easily Extensible

    If you need to store extra data (e.g., line numbers, start/end positions, token types for more control), you can extend the array into objects:

    justSelectedText = [
        { text: "p-class", line: 12, startCh: 6, endCh: 13 },
        { text: "header", line: 30, startCh: 0, endCh: 6 }
    ];

3. Scales Efficiently for Viewport-Scoped Rendering

    Instead of processing all tokens in the file (causing overload with large files), you scope highlights strictly based on the viewport's bounds while keeping justSelectedText focused.

4. Debug-Friendly

    By isolating logic into the array, you can easily debug states like:
        What text is currently selected?
        Are matching tokens being highlighted properly?
        Is data being reset as expected?

Closing Thoughts

Using a temporary array like justSelectedText is a logical and effective programming solution for this problem. It provides:

    Isolation to prevent interfering with unrelated editor states.
    Flexibility for dynamic operations (viewport-scoped scroll/render, highlight resets).
    Scalability to work with large files and multiple interactions without performance bottlenecks.

So, yes, storing and manipulating temporary user-selected data independently in an array is a right method, and you’ve identified this approach accurately. 💪 Keep up the logical programming ideas, and I’m here to assist with implementing them!

""".


fix all and be da hero!

output full corrected.