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[Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
author June Park <parkjune1995@gmail.com>
date Mon, 12 Jan 2026 09:11:58 -0800
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children
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154
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
June Park <parkjune1995@gmail.com>
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1 /**
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
June Park <parkjune1995@gmail.com>
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2 * Markdown to HTML Converter - WASM FFI Wrapper
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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3 * Loads the C implementation via WebAssembly and provides JavaScript API
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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4 *
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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5 * Build the WASM with: bazel build //markdown_converter:markdown_to_html_wasm
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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6 */
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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7
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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8 class MarkdownConverterWasm {
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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9 constructor() {
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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10 this.wasm = undefined;
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11 this.ready = false;
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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12 }
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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13
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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14 /**
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
June Park <parkjune1995@gmail.com>
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15 * Initialize the WASM module
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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16 * @param {string} wasmPath - Path to the .wasm file
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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17 * @returns {Promise<void>}
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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18 */
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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19 async init(wasmPath = '/markdown_to_html_wasm.wasm') {
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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20 if (this.ready) return;
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21
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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22 try {
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23 this.wasm = await WebAssembly.instantiateStreaming(fetch(wasmPath), {
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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24 env: {}
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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25 });
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26 this.ready = true;
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27 } catch (err) {
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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28 console.error('Failed to load markdown WASM module:', err);
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29 throw err;
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30 }
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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31 }
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32
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33 /**
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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34 * Write string to WASM memory
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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35 * @private
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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36 */
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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37 _writeString(str) {
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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38 const encoder = new TextEncoder();
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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39 const bytes = encoder.encode(str + '\0');
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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40 const ptr = this.wasm.instance.exports.malloc(bytes.length);
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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41 const memory = new Uint8Array(this.wasm.instance.exports.memory.buffer);
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42 memory.set(bytes, ptr);
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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43 return ptr;
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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44 }
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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45
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46 /**
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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47 * Read string from WASM memory
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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48 * @private
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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49 */
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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50 _readString(ptr) {
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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51 const memory = new Uint8Array(this.wasm.instance.exports.memory.buffer);
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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52 let end = ptr;
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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53 while (memory[end] !== 0) end++;
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54 const bytes = memory.slice(ptr, end);
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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55 const decoder = new TextDecoder();
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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56 return decoder.decode(bytes);
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57 }
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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58
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59 /**
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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60 * Reset the WASM heap (call between conversions to reclaim memory)
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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61 */
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62 resetHeap() {
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63 if (this.ready) {
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64 this.wasm.instance.exports.heap_reset();
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65 }
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66 }
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67
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68 /**
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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69 * Convert markdown string to HTML string using WASM
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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70 * @param {string} markdown - The markdown text to convert
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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71 * @returns {string} The converted HTML
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72 */
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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73 convert(markdown) {
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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74 if (!this.ready) {
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75 throw new Error('WASM module not initialized. Call init() first.');
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76 }
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77
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78 // Reset heap before each conversion to reclaim memory
bdcc610eeed8 [Markdown Converter][GuiZe] Added markdown coverter in C and wasm rule sets. Needs further view on this as I haven't taken a look. Written by Claude.
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79 this.resetHeap();
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80
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81 // Write markdown to WASM memory
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82 const inputPtr = this._writeString(markdown);
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83
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84 // Call the C function
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85 const outputPtr = this.wasm.instance.exports.markdown_to_html(inputPtr);
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86
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87 // Read the result
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88 const html = this._readString(outputPtr);
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89
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90 return html;
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91 }
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92
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93 /**
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94 * Convert markdown to DOM elements (compatible with original API)
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95 * @param {string} markdown - The markdown text to convert
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96 * @returns {Array<HTMLElement>} Array of DOM elements
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97 */
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98 convertToElements(markdown) {
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99 const html = this.convert(markdown);
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100 const template = document.createElement('template');
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101 template.innerHTML = html;
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102 return Array.from(template.content.children);
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103 }
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104 }
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105
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106 // Singleton instance
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107 const markdownWasm = new MarkdownConverterWasm();
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108
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109 /**
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110 * Convert markdown to DOM elements (WASM version)
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111 * Compatible with original markdownConverter() API
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112 * @param {string} value - Markdown string
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113 * @returns {Promise<Array<HTMLElement>>} Array of DOM elements
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114 */
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115 async function markdownConverterWasm(value) {
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116 if (!markdownWasm.ready) {
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117 await markdownWasm.init();
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118 }
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119 return markdownWasm.convertToElements(value);
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120 }
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121
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122 /**
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123 * Render markdown to a container element (WASM version)
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124 * Compatible with original renderMarkdown() API
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125 * @param {HTMLElement} container - Container element
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126 * @param {string} markdown - Markdown string
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127 */
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128 async function renderMarkdownWasm(container, markdown) {
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129 if (!markdownWasm.ready) {
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130 await markdownWasm.init();
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131 }
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132 container.innerHTML = markdownWasm.convert(markdown);
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133 }
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134
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135 // Export for use in other files
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136 if (typeof module !== 'undefined' && module.exports) {
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137 module.exports = {
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138 MarkdownConverterWasm,
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139 markdownWasm,
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140 markdownConverterWasm,
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141 renderMarkdownWasm
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142 };
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143 }