This patch mechanically replaces None with std::nullopt where the
compiler would warn if None were deprecated. The intent is to reduce
the amount of manual work required in migrating from Optional to
std::optional.
This is part of an effort to migrate from llvm::Optional to
std::optional:
https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716
This allows registering certain tags as possibly beginning multi-line
elements in the symbolizer markup parser. The parser is kept agnostic to
how lines are delimited; it reports the entire contents, including line
endings, once the end of element marker is reached.
Reviewed By: peter.smith
Differential Revision: https://reviews.llvm.org/D124798
This adds a parser for the log symbolizer markup format discussed in
https://discourse.llvm.org/t/rfc-log-symbolizer/61282. The parser
operates in a line-by-line fashion with minimal memory requirements.
This doesn't yet include support for multi-line tags or specific parsing
for ANSI X3.64 SGR control sequences, but it can be extended to do so.
The latter can also be relatively easily handled by examining the
resulting text elements.
Reviewed By: peter.smith
Differential Revision: https://reviews.llvm.org/D124686
Kazu Hirata