Implementing domDocumentToXDocument and xslt.xsltProcessToDocument

[leonelsanchesdasilva]

Enabling usage with JS objects instead of XML strings.

Resolves #171.

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟡	Statements	78.02% (+0.09% 🔼)	3325/4262
🟡	Branches	67.84% (-0.09% 🔻)	1947/2870
🟡	Functions	71.06% (-0.05% 🔻)	388/546
🟡	Lines	78.09% (+0.05% 🔼)	3180/4072

Show new covered files 🐣

St.❔	File	Statements	Branches	Functions	Lines
🟡	... / dom-to-xdocument.ts	78.33%	53.13%	100%	78.57%

Show files with reduced coverage 🔻

St.❔	File	Statements	Branches	Functions	Lines
🟢	index.ts	100%	100%	25% (-15% 🔻)	100%

Test suite run success

638 tests passing in 63 suites.

Report generated by 🧪jest coverage report action from 2e24b49

[Copilot]

Pull request overview

This PR adds browser-friendly APIs to avoid XML string parsing overhead by (1) converting native DOM nodes into the library’s internal XDocument representation and (2) allowing XSLT processing to return an XDocument result tree instead of a serialized string.

Changes:

• Added domDocumentToXDocument() to convert native DOM Document/Node inputs into XDocument.
• Added Xslt.xsltProcessToDocument() to return transformation output as an XDocument.
• Added Jest coverage for both features (including a jsdom-based test), plus updated exports and README docs.

Reviewed changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
src/dom/dom-to-xdocument.ts	Implements native DOM → XDocument conversion.
src/xslt/xslt.ts	Adds xsltProcessToDocument() for non-serialized output.
src/dom/index.ts	Re-exports the new DOM conversion helper.
src/index.ts	Exposes XDocument, XNode, and domDocumentToXDocument from the package entrypoint.
tests/dom-to-xdocument.test.ts	jsdom tests for DOM → XDocument conversion and XSLT input compatibility.
tests/xslt/process-to-document.test.ts	Tests for xsltProcessToDocument() output shape and equivalence to serialization.
package.json	Adds jest-environment-jsdom for jsdom test execution.
README.md	Documents the new DOM input + document output features.

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