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@ -49,50 +49,6 @@ export function detectLanguage(content: string, mime: string): string {
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}
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}
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}
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}
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// For performance, limit the amount of code we pass to highlight.js
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// Use a maximum of ~10KB of code for detection
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const MAX_SAMPLE_SIZE = 10240;
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const codeSample = content.length > MAX_SAMPLE_SIZE
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? content.substring(0, MAX_SAMPLE_SIZE)
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: content;
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try {
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// Browser environment
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if (typeof window !== 'undefined' && window.hljs) {
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const result = window.hljs.highlightAuto(codeSample);
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if (result && result.language) {
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return result.language;
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}
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}
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// Node.js environment
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else if (typeof process !== 'undefined' && process.versions && process.versions.node) {
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// Only load highlight.js if we haven't already
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if (!hljs) {
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try {
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// We need to dynamically require highlight.js
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// Using a try/catch since it might not be available
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hljs = require('@highlightjs/cdn-assets/highlight.min.js');
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} catch (e) {
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try {
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// Try alternative path
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hljs = require('highlight.js');
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} catch (e2) {
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console.debug("highlight.js not available in this environment, falling back to regex detection");
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}
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}
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}
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if (hljs && typeof hljs.highlightAuto === 'function') {
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const result = hljs.highlightAuto(codeSample);
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if (result && result.language) {
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return result.language;
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}
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}
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}
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} catch (e) {
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console.debug("Error using highlight.js for language detection:", e);
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}
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// Fallback to regex-based detection if highlight.js is not available or fails
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// Fallback to regex-based detection if highlight.js is not available or fails
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// Check for common language patterns in the first few lines
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// Check for common language patterns in the first few lines
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const firstLines = content.split('\n').slice(0, 10).join('\n');
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const firstLines = content.split('\n').slice(0, 10).join('\n');
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