tree a6199e6af700aa9f4f2371dd4669eebedf32df52
parent 44bb9936deb46a62b46b8e9ce7a2526ef1a62a82
author David Benjamin <davidben@google.com> 1778090943 -0400
committer boringssl-scoped@luci-project-accounts.iam.gserviceaccount.com <boringssl-scoped@luci-project-accounts.iam.gserviceaccount.com> 1778094393 -0700

Align libpki's PEM parser with crypto/pem a bit

Both our crypto/pem and Go's encoding/pem tolerate whitespace in the
middle of the line, and also only treat ' ', '\t', '\r', and '\n' as
whitespace. Align the libpki one with crypto/pem.

As part of this, remove the overcomplicated CollapseWhitespaceASCII
function. That was seemingly adapted from Chromium //base, where it is
used for a different purpose.

Update-Note: libpki's PEMTokenizer now allows whitespace in the middle
of a line, matching other implementations, and disallows '\v' and '\f',
also matching other implementations. This is not expected to have any
real impact.

Change-Id: I349dc86762e5e1c184448b6170e4113579f2c43f
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/94928
Presubmit-BoringSSL-Verified: boringssl-scoped@luci-project-accounts.iam.gserviceaccount.com <boringssl-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: David Benjamin <davidben@google.com>
Reviewed-by: Rudolf Polzer <rpolzer@google.com>
Commit-Queue: Rudolf Polzer <rpolzer@google.com>