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https://github.com/DayuanJiang/next-ai-draw-io.git
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dayuan.jiang
b7c543ca70
The web app will reuse the MCP server's XML engine instead of its own
copy in lib/utils.ts, so these modules now run in the browser too.
- Relative imports end in .ts, rewritten to .js by tsc
(rewriteRelativeImportExtensions); Next.js resolves them directly
- Every module uses the global DOMParser/XMLSerializer: native in the
browser, linkedom in Node via installDomPolyfill. pages.ts parsed with
linkedom but serialized with the global serializer, which throws in
the browser
- The saxes syntax check moves to xml-syntax.ts, so the browser does not
pull in linkedom; it now also rejects undeclared prefixes such as
xlink:, as the browser does
- Page decompression uses pako and atob instead of node:zlib and Buffer
- hasCells moves to pages.ts, away from the file system code
- The duplicate cell id check counts UserObject/object ids
- wrapCellsInModel drops comments and text before the first cell, which
the web app accepts today
- validateAndFixXml takes { strict: false } for diagrams with user content
- Web tests run these modules with a browser DOM (jsdom)
- saxes becomes a direct dependency of the web app
22 lines
749 B
TypeScript
22 lines
749 B
TypeScript
/**
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* Strict XML syntax check, used in Node and in the web app's browser code.
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* saxes reports syntax errors the way draw.io's DOMParser will, including
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* an attribute prefix such as xlink: that was never declared.
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*/
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import { SaxesParser } from "saxes"
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/**
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* Returns the first XML syntax error as "line:column: message", or null if
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* the XML is well-formed. Surrounding whitespace is ignored because every
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* caller trims before the XML reaches the browser.
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*/
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export function getXmlSyntaxError(xml: string): string | null {
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let error: string | null = null
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const parser = new SaxesParser({ xmlns: true })
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parser.on("error", (err) => {
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error ??= err.message
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})
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parser.write(xml.trim()).close()
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return error
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}
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