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YAML: Implement block scalar parsing.

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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
This commit is contained in:
Alex Lorenz
2015-05-13 23:10:51 +00:00
parent 7c001dac7a
commit b96942f6ec
15 changed files with 363 additions and 59 deletions
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27
unittests/Support/YAMLParserTest.cpp
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@@ -130,6 +130,33 @@ TEST(YAMLParser, ParsesArrayOfArrays) {
ExpectParseSuccess("Array of arrays", "[[]]");
}
TEST(YAMLParser, ParsesBlockLiteralScalars) {
ExpectParseSuccess("Block literal scalar", "test: |\n Hello\n World\n");
ExpectParseSuccess("Block literal scalar EOF", "test: |\n Hello\n World");
ExpectParseSuccess("Empty block literal scalar header EOF", "test: | ");
ExpectParseSuccess("Empty block literal scalar", "test: |\ntest2: 20");
ExpectParseSuccess("Empty block literal scalar 2", "- | \n \n\n \n- 42");
ExpectParseSuccess("Block literal scalar in sequence",
"- |\n Testing\n Out\n\n- 22");
ExpectParseSuccess("Block literal scalar in document",
"--- |\n Document\n...");
ExpectParseSuccess("Empty non indented lines still count",
"- |\n First line\n \n\n Another line\n\n- 2");
ExpectParseSuccess("Comment in block literal scalar header",
"test: | # Comment \n No Comment\ntest 2: | # Void");
ExpectParseSuccess("Chomping indicators in block literal scalar header",
"test: |- \n Hello\n\ntest 2: |+ \n\n World\n\n\n");
ExpectParseSuccess("Indent indicators in block literal scalar header",
"test: |1 \n \n Hello \n World\n");
ExpectParseSuccess("Chomping and indent indicators in block literals",
"test: |-1\n Hello\ntest 2: |9+\n World");
ExpectParseSuccess("Trailing comments in block literals",
"test: |\n Content\n # Trailing\n #Comment\ntest 2: 3");
ExpectParseError("Invalid block scalar header", "test: | failure");
ExpectParseError("Invalid line indentation", "test: |\n First line\n Error");
ExpectParseError("Long leading space line", "test: |\n \n Test\n");
}
TEST(YAMLParser, HandlesEndOfFileGracefully) {
ExpectParseError("In string starting with EOF", "[\"");
ExpectParseError("In string hitting EOF", "[\" ");