YAML: Implement block scalar parsing.

This commit implements the parsing of YAML block scalars.
Some code existed for it before, but it couldn't parse block
scalars.

This commit adds a new yaml node type to represent the block
scalar values. 

This commit also deletes the 'spec-09-27' and 'spec-09-28' tests
as they are identical to the test file 'spec-09-26'.

This commit introduces 3 new utility functions to the YAML scanner
class: `skip_s_space`, `advanceWhile` and `consumeLineBreakIfPresent`.

Reviewers: Duncan P. N. Exon Smith

Differential Revision: http://reviews.llvm.org/D9503


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237314 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 0 deletions

diff --git a/utils/yaml-bench/YAMLBench.cpp b/utils/yaml-bench/YAMLBench.cpp
index bd5aa152dff..634622a710c 100644
--- a/utils/yaml-bench/YAMLBench.cpp
+++ b/utils/yaml-bench/YAMLBench.cpp
@@ -96,6 +96,8 @@ static void dumpNode( yaml::Node *n
     SmallString<32> Storage;
     StringRef Val = sn->getValue(Storage);
     outs() << prettyTag(n) << " \"" << yaml::escape(Val) << "\"";
+  } else if (yaml::BlockScalarNode *BN = dyn_cast<yaml::BlockScalarNode>(n)) {
+    outs() << prettyTag(n) << " \"" << yaml::escape(BN->getValue()) << "\"";
   } else if (yaml::SequenceNode *sn = dyn_cast<yaml::SequenceNode>(n)) {
     outs() << prettyTag(n) << " [\n";
     ++Indent;