tree f6d974af4aff340a9b13857918ecb267efd0d0e8
parent 5299db5f17d3bfeb8fcdafe9ec788f53737890b7
author Tom Sepez <tsepez@chromium.org> 1707769161 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1707769161 +0000

Combine FX_wcspos() and FX_strpos() into fxcrt::spanpos().

The code is nearly identical so make into a generic find span
within span function.

-- Add unit tests.

Change-Id: I154b102f70c7bfbf897c231e337636e8e9df4615
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/116470
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Thomas Sepez <tsepez@google.com>