Ross Johnson 6dae2677d5 [api-minor] Highlight search results correctly for normalized text (PR 9448) ...

This patch is a rebased *and* refactored version of PR 9448, such that it applies cleanly given that `PDFFindController` has changed since that PR was opened; obviously keeping the original author information intact.

This patch will thus ensure that e.g. fractions, and other things that we normalize before searching, will still be highlighted correctly in the textLayer.

Furthermore, this patch also adds basic unit-tests for this functionality.

*Note:* The `[api-minor]` tag is added, since third-party implementations of the `PDFFindController` must now always use the `pageMatchesLength` property to get accurate length information (see the `web/text_layer_builder.js` changes).

Co-authored-by: Ross Johnson <ross@mazira.com>
Co-authored-by: Jonas Jenwald <jonas.jenwald@gmail.com>

2021-01-12 18:08:08 +01:00

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