Use Case

We're building an email client and need to customize how <blockquote> elements are processed during DOM-to-Model conversion. In our application, email citations use blockquotes with zero margins:

<blockquote style="margin-top: 0; margin-bottom: 0;">...</blockquote>

We want these blockquotes to always preserve their FormatContainer semantics, but the default knownElementProcessor only triggers formatContainerProcessor when certain style values are > 0.

Request

Please export formatContainerProcessor from the public API, so users can use it in processorOverride for custom processing needs:

// In roosterjs-content-model-dom/lib/index.ts
export { formatContainerProcessor } from './domToModel/processors/formatContainerProcessor';

Current Workarounds

Without the public export, we have to use fragile workarounds:

Option 1: Require internal module path

const { formatContainerProcessor } = require(
  'roosterjs-content-model-dom/lib/domToModel/processors/formatContainerProcessor'
);

Option 2: Borrow from another tag's default processor

processorOverride: {
  blockquote: (group, element, context) => {
    context.defaultElementProcessors.pre(group, element, context);
  },
},

Rationale

• Other processors (childProcessor, entityProcessor, tableProcessor) are already publicly exported
• processorOverride is a public API, but users lack access to reusable processor implementations
• Exporting formatContainerProcessor would enable legitimate customization without relying on internal paths