Mihaela M
942a7ff2bc
A zero-indent literal or folded block scalar sits at column 0, where the directive scan runs, so a content line beginning with `%` (`%!PS-Adobe-2.0`) was misread as a directive and rejected as unsupported. The directive scan now runs only outside a block scalar, so a leading `%` in block scalar content is literal text. A real `%YAML` or `%TAG` directive still parses, and a stray `%` in other content is still rejected rather than silently accepted, so the should-error behaviour is unchanged. This is groundwork for yaml-test-suite W4TN, which additionally needs a block scalar to be terminated by `...` and per-document directives across a multi- document stream, so conformance counts are unchanged this step.
31 lines
1.5 KiB
Swift
31 lines
1.5 KiB
Swift
@testable import PureYAML
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import Testing
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@Suite("A percent inside a block scalar is literal content, not a directive")
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struct BlockScalarPercentContentTests {
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/// A zero-indent block scalar sits at column 0, where the directive scan runs, so a content line
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/// beginning with `%` was misread as a directive and rejected. Inside a block scalar a leading
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/// `%` is literal text (groundwork for yaml-test-suite W4TN, which also needs block-scalar
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/// termination by `...` and multi-document directives).
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@Test("A root literal block scalar keeps a leading percent as content")
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func test_rootBlockScalarPercentContent() throws {
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#expect(try PureYAML.parse("--- |\n%foo\n") == .string("%foo\n"))
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}
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/// Every content line of the block scalar keeps its leading percent, not only the first.
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@Test("Each block scalar line keeps its leading percent")
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func test_multilineBlockScalarPercentContent() throws {
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#expect(try PureYAML.parse("--- |\n%one\n%two\n") == .string("%one\n%two\n"))
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}
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/// The change is scoped to block scalars: a real `%YAML` directive still works, and a stray `%`
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/// in other content is still rejected rather than silently accepted.
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@Test("A directive still parses and a stray percent in content still errors")
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func test_directiveStillWorksAndStrayPercentRejected() throws {
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#expect(try PureYAML.parse("%YAML 1.2\n---\nx\n") == .string("x"))
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#expect(throws: PureYAML.Parsing.ParseError.self) {
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try PureYAML.parse("{ a,\n%x }\n")
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}
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}
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}
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