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{"type":"item.completed","item":{"id":"item_0","type":"agent_message","text":"=== FEATURE-BLOCK-QUOTES.md ===\n# FEATURE: Block Quotes\n\n| Field | Value |\n|-------------|-------|\n| Version | 20260812 V1 |\n| Description | Defines nested CommonMark block quotes and lazy continuation behavior. |\n| Depends On | FEATURE-BLOCK-LEAF.md |\n| Provides | block quote parser |\n| Consumes | leaf block parser |\n\n## Questions\n\n- None.\n\n## Purpose\n\nBlock quotes contain recursively parsed CommonMark blocks. A marker consists of up to three leading spaces, `>`, and an optional following space or tab.\n\n## Behavior\n\nThe parser supports:\n\n- Empty block quotes and block quotes with blank boundary lines.\n- Nested block quotes.\n- Block quotes containing headings, paragraphs, lists, code blocks, HTML blocks, and thematic breaks.\n- Lazy continuation of paragraph lines when the `>` marker is omitted.\n- Termination when a non-lazy line cannot continue the quoted block.\n- Separate block quotes when a blank line separates them.\n\nBlock structure is resolved before inline parsing. Quoted content uses the same block parser as document content.\n\n## Programmatic Acceptance\n\n=== AC block-quotes ===\nIntent: The parser passes the complete block quote conformance section.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport subprocess\n\nresult = subprocess.run(\n [\n \"python3\",\n \"spec_tests.py\",\n \"--spec\",\n \"spec.txt\",\n \"--program\",\n \"./cmark\",\n \"--pattern\",\n r\"^Block quotes$\",\n ],\n capture_output=True,\n text=True,\n)\nprint(result.stdout)\nprint(result.stderr)\nassert result.returncode == 0\n=== END AC block-quotes ===\n\n=== AC block-quotes-nested ===\nIntent: Nested and lazy block quote examples execute successfully.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport subprocess\n\nresult = subprocess.run(\n [\n \"python3\",\n \"spec_tests.py\",\n \"--spec\",\n \"spec.txt\",\n \"--program\",\n \"./cmark\",\n \"--pattern\",\n r\"^Block quotes$\",\n ],\n capture_output=True,\n text=True,\n)\nprint(result.stdout)\nprint(result.stderr)\nassert result.returncode == 0\n=== END AC block-quotes-nested ===\n\n## User Acceptance\n\n- None.\n\n## Guardrails\n\n- Block structure is parsed before inline structure.\n- Lazy continuation does not continue a quote across a new block construct.\n- The parser does not use a public Markdown implementation.\n\n=== END FEATURE-BLOCK-QUOTES.md ===\n=== FEATURE-BLOCK-LISTS.md ===\n# FEATURE: List Items and Lists\n\n| Field | Value |\n|-------------|-------|\n| Version | 20260812 V1 |\n| Description | Defines CommonMark bullet lists, ordered lists, nesting, and list tightness. |\n| Depends On | FEATURE-BLOCK-LEAF.md, FEATURE-BLOCK-QUOTES.md |\n| Provides | list parser |\n| Consumes | leaf block parser, block quote parser |\n\n## Questions\n\n- None.\n\n## Purpose\n\nLists contain bullet or ordered list items whose contents are recursively parsed as CommonMark blocks.\n\n## Behavior\n\nThe parser supports:\n\n- Bullet markers `-`, `+`, and `*`.\n- Ordered markers with one to nine digits followed by `.` or `)`.\n- Empty list items.\n- Nested lists determined by marker width and indentation.\n- Lists interrupted by paragraphs where CommonMark permits interruption.\n- Lazy continuation lines.\n- Block quotes, headings, code blocks, paragraphs, and other blocks inside list items.\n- Separate lists when bullet characters or ordered delimiters change.\n- Ordered-list start numbers, including leading zeroes.\n- Tight and loose list classification based on blank-line separation.\n- Correct paragraph wrapping for tight and loose lists.\n\nThe list parser preserves item structure and tightness metadata for the renderer.\n\n## Programmatic Acceptance\n\n=== AC lists-items ===\nIntent: The parser passes the complete list item conformance section.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport subprocess\n\nresult = subprocess.run(\n [\n \"python3\",\n \"spec_tests.py\",\n \"--spec\",\n \"spec.txt\",\n \"--program\",\n \"./cmark\",\n \"--pattern\",\n r\"^(List items|Lists)$\",\n ],\n capture_output=True,\n text=True,\n)\nprint(result.stdout)\nprint(result.stderr)\nassert result.returncode == 0\n=== END AC lists-items ===\n\n=== AC lists-nesting-tightness ===\nIntent: Nested, empty, delimiter-changing, and tightness examples execute successfully.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport subprocess\n\nresult = subprocess.run(\n [\n \"python3\",\n \"spec_tests.py\",\n \"--spec\",\n \"spec.txt\",\n \"--program\",\n \"./cmark\",\n \"--pattern\",\n r\"^(List items|Lists)$\",\n ],\n capture_output=True,\n text=True,\n)\nprint(result.stdout)\nprint(result.stderr)\nassert result.returncode == 0\n=== END AC lists-nesting-tightness ===\n\n## User Acceptance\n\n- None.\n\n## Guardrails\n\n- List markers are recognized only where CommonMark permits them.\n- Thematic breaks take precedence over competing list-item interpretations.\n- Tightness is derived from list structure and blank-line separation, not from output text.\n- The parser does not use a public Markdown implementation.\n\n=== END FEATURE-BLOCK-LISTS.md ===\n=== FEATURE-INLINE-ESCAPES.md ===\n# FEATURE: Escapes and Character References\n\n| Field | Value |\n|-------------|-------|\n| Version | 20260812 V1 |\n| Description | Defines CommonMark backslash escapes and character reference handling. |\n| Depends On | FEATURE-BLOCK-LISTS.md |\n| Provides | escape parser, character reference parser |\n| Consumes | block parser |\n\n## Questions\n\n- None.\n\n## Purpose\n\nInline parsing interprets escaped punctuation and valid HTML named or numeric character references while preserving literal syntax in restricted contexts.\n\n## Behavior\n\nThe parser supports:\n\n- Backslash escapes for every ASCII punctuation character.\n- Literal backslashes before non-punctuation characters.\n- Named HTML entities with semicolons.\n- Decimal and hexadecimal numeric references.\n- Replacement of invalid Unicode code points and U+0000 with U+FFFD.\n- Character references in ordinary inline content, URLs, titles, and fenced-code info strings.\n- Literal treatment of escapes and references in code spans, indented code, fenced code content, autolinks, and raw HTML.\n- Structural characters remaining structural when represented by character references is not permitted.\n\n## Programmatic Acceptance\n\n=== AC escapes ===\nIntent: The parser passes the complete backslash escape conformance section.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport subprocess\n\nresult = subprocess.run(\n [\n \"python3\",\n \"spec_tests.py\",\n \"--spec\",\n \"spec.txt\",\n \"--program\",\n \"./cmark\",\n \"--pattern\",\n r\"^Backslash escapes$\",\n ],\n capture_output=True,\n text=True,\n)\nprint(result.stdout)\nprint(result.stderr)\nassert result.returncode == 0\n=== END AC escapes ===\n\n=== AC character-references ===\nIntent: The parser passes entity, numeric reference, and insecure-character conformance sections.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nresult = subprocess.run(\n [\n \"python3\",\n \"spec_tests.py\",\n \"--spec\",\n \"spec.txt\",\n \"--program\",\n \"./cmark\",\n \"--pattern\",\n r\"^(Insecure characters|Entity and numeric character references)$\",\n ],\n capture_output=True,\n text=True,\n)\nprint(result.stdout)\nprint(result.stderr)\nassert result.returncode == 0\n=== END AC character-references ===\n\n## User Acceptance\n\n- None.\n\n## Guardrails\n\n- U+0000 is never emitted as a literal null character.\n- Escapes and references do not alter block-level syntax.\n- The parser does not use a public Markdown implementation.\n\n=== END FEATURE-INLINE-ESCAPES.md ===\n=== FEATURE-INLINE-CODE-BREAKS.md ===\n# FEATURE: Code Spans and Line Breaks\n\n| Field | Value |\n|-------------|-------|\n| Version | 20260812 V1 |\n| Description | Defines CommonMark code spans, hard breaks, and soft breaks. |\n| Depends On | FEATURE-BLOCK-LISTS.md |\n| Provides | code span parser, hard break parser, soft break parser |\n| Consumes | block parser |\n\n## Questions\n\n- None.\n\n## Purpose\n\nInline parsing recognizes backtick-delimited code spans and distinguishes hard line breaks from ordinary soft line breaks.\n\n## Behavior\n\nThe parser supports:\n\n- Code spans delimited by equal-length backtick runs.\n- Unclosed and mismatched backtick runs as literal text.\n- Conversion of line endings inside code spans to spaces.\n- Removal of one matching leading and trailing space around non-space code content.\n- Preservation of interior spaces and literal escapes inside code spans.\n- Hard breaks caused by two or more trailing spaces or a trailing backslash.\n- Suppression of hard-break interpretation at block ends and inside code spans or HTML tags.\n- Soft breaks for ordinary paragraph line endings.\n- Removal of indentation after a hard or soft line break according to CommonMark rules.\n\n## Programmatic Acceptance\n\n=== AC code-spans ===\nIntent: The parser passes the complete code span conformance section.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport subprocess\n\nresult = subprocess.run(\n [\n \"python3\",\n \"spec_tests.py\",\n \"--spec\",\n \"spec.txt\",\n \"--program\",\n \"./cmark\",\n \"--pattern\",\n r\"^Code spans$\",\n ],\n capture_output=True,\n text=True,\n)\nprint(result.stdout)\nprint(result.stderr)\nassert result.returncode == 0\n=== END AC code-spans ===\n\n=== AC-line-breaks ===\nIntent: The parser passes hard and soft line break conformance sections.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nresult = subprocess.run(\n [\n \"python3\",\n \"spec_tests.py\",\n \"--spec\",\n \"spec.txt\",\n \"--program\",\n \"./cmark\",\n \"--pattern\",\n r\"^(Hard line breaks|Soft line breaks)$\",\n ],\n capture_output=True,\n text=True,\n)\nprint(result.stdout)\nprint(result.stderr)\nassert result.returncode == 0\n=== END AC-line-breaks ===\n\n## User Acceptance\n\n- None.\n\n## Guardrails\n\n- Code spans do not interpret Markdown escapes or character references.\n- Hard breaks are not created at the end of a block.\n- The parser does not use a public Markdown implementation.\n\n=== END FEATURE-INLINE-CODE-BREAKS.md ===\n=== FEATURE-INLINE-EMPHASIS.md ===\n# FEATURE: Emphasis and Strong Emphasis\n\n| Field | Value |\n|-------------|-------|\n| Version | 20260812 V1 |\n| Description | Defines CommonMark emphasis and strong-emphasis delimiter processing. |\n| Depends On | FEATURE-INLINE-CODE-BREAKS.md |\n| Provides | emphasis parser, strong emphasis parser |\n| Consumes | block parser, code span parser |\n\n## Questions\n\n- None.\n\n## Purpose\n\nInline parsing resolves asterisk and underscore delimiter runs using CommonMark flanking, nesting, precedence, and modulo-three rules.\n\n## Behavior\n\nThe parser supports:\n\n- Left- and right-flanking delimiter runs.\n- Single and double delimiters for emphasis and strong emphasis.\n- Intraword asterisk emphasis.\n- Intraword underscore restrictions.\n- Nested emphasis and strong emphasis.\n- Mixed emphasis and strong-emphasis nesting.\n- Literal unmatched delimiter characters.\n- The modulo-three rule for ambiguous delimiter runs.\n- Precedence of code spans, links, images, autolinks, and HTML tags over emphasis.\n- Unicode whitespace and punctuation classification for delimiter decisions.\n\nDelimiter processing occurs after block parsing and respects inline constructs that bind more tightly.\n\n## Programmatic Acceptance\n\n=== AC emphasis ===\nIntent: The parser passes the complete emphasis and strong emphasis conformance section.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport subprocess\n\nresult = subprocess.run(\n [\n \"python3\",\n \"spec_tests.py\",\n \"--spec\",\n \"spec.txt\",\n \"--program\",\n \"./cmark\",\n \"--pattern\",\n r\"^Emphasis and strong emphasis$\",\n ],\n capture_output=True,\n text=True,\n)\nprint(result.stdout)\nprint(result.stderr)\nassert result.returncode == 0\n=== END AC emphasis ===\n\n=== AC emphasis-precedence ===\nIntent: Emphasis nesting, intraword restrictions, and precedence examples execute successfully.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nresult = subprocess.run(\n [\n \"python3\",\n \"spec_tests.py\",\n \"--spec\",\n \"spec.txt\",\n \"--program\",\n \"./cmark\",\n \"--pattern\",\n r\"^Emphasis and strong emphasis$\",\n ],\n capture_output=True,\n text=True,\n)\nprint(result.stdout)\nprint(result.stderr)\nassert result.returncode == 0\n=== END AC emphasis-precedence ===\n\n## User Acceptance\n\n- None.\n\n## Guardrails\n\n- Delimiter runs are resolved according to CommonMark 0.31.2 rules.\n- Unmatched delimiters remain literal text.\n- Code spans, links, images, autolinks, and raw HTML bind more tightly than emphasis.\n- The parser does not use a public Markdown implementation.\n\n=== END FEATURE-INLINE-EMPHASIS.md ==="}}
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