tree d05f2aed89920a55f41ea2f40dc15b462e8040fb
parent d3fb7d00ef6d6bd8e9b55a84c9dbb6796d672f8a
author Lei Zhang <thestig@chromium.org> 1678832049 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1678832049 +0000

Add more helpers to deal with variable length fields in cpdf_parser.cpp

Inside cpdf_parser.cpp, there exists a GetVarInt() function to deal with
variable length fields. Using it correctly requires understanding the
relevant parts of the PDF spec. Add a few wrappers for it, like
GetFirstXRefStreamEntry(), so callers can more easily do the higher
level task without having to understand the details about the variable
length fields.

Change-Id: I646cbeca678a75dfc4940cfe6b51e169ba036175
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/104812
Reviewed-by: Nigi <nigi@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>