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rust_browser/tests/goldens/expected/217-z-index-three-level-nesting.layout.txt
Zachary D. Rowitsch d5234cf546 Implement HTML5 tree builder insertion modes with code review fixes (§13.2.6)
Refactor tree_builder.rs into module directory with 7 files implementing all
23 insertion modes per WHATWG HTML §13.2.6.4 as an explicit state machine.
Includes active formatting elements list with Noah's Ark clause, scope
checking for all 5 scope types, context-sensitive fragment parsing, and
iterative token reprocessing via ProcessResult enum.

Code review fixes: fix formatting element end tag truncation bug (save
node_id before truncate), replace manual element creation in catch-all
StartTag with insert_element_maybe_self_closing, add skip_next_newline for
pre/listing/textarea per spec, add QuirksMode to Document with basic DOCTYPE
detection, refactor all 23 handlers from Token to &Token to eliminate clone
per dispatch, fix self_closing handling for pre/listing/textarea/plaintext,
improve golden test 276 fixture coverage and foster-parent test assertion.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-14 22:12:19 -04:00

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LayoutBox node=#1 tag=html box=block
content: (0, 0, 800, 216)
padding: 0 0 0 0
border: 0 0 0 0
margin: 0 0 0 0
LayoutBox node=#8 tag=body box=block
content: (8, 8, 784, 200)
padding: 0 0 0 0
border: 0 0 0 0
margin: 8 8 8 8
LayoutBox node=#10 tag=div box=block
content: (8, 8, 300, 200)
padding: 0 0 0 0
border: 0 0 0 0
margin: 0 0 0 0
LayoutBox node=#12 tag=div box=block
content: (18, 18, 200, 150)
padding: 0 0 0 0
border: 0 0 0 0
margin: 0 0 0 0
LayoutBox node=#13 tag=(anonymous-block) box=block
content: (18, 18, 200, 19.2)
padding: 0 0 0 0
border: 0 0 0 0
margin: 0 0 0 0
inline_context: 1 lines, height=19.2, max_width=15.929516
line[0]: rect=(18, 18, 15.929516, 19.2) fragments=1
frag[0]: rect=(18, 19.6, 12.875183, 16) text="L1" start=false end=false
LayoutBox node=#13 tag=anonymous box=anon
content: (0, 0, 15.929515, 16)
padding: 0 0 0 0
border: 0 0 0 0
margin: 0 0 0 0
text: "L1 "
LayoutBox node=#14 tag=div box=block
content: (28, 28, 150, 100)
padding: 0 0 0 0
border: 0 0 0 0
margin: 0 0 0 0
LayoutBox node=#15 tag=(anonymous-block) box=block
content: (28, 28, 150, 19.2)
padding: 0 0 0 0
border: 0 0 0 0
margin: 0 0 0 0
inline_context: 1 lines, height=19.2, max_width=15.929516
line[0]: rect=(28, 28, 15.929516, 19.2) fragments=1
frag[0]: rect=(28, 29.6, 12.875183, 16) text="L2" start=false end=false
LayoutBox node=#15 tag=anonymous box=anon
content: (0, 0, 15.929515, 16)
padding: 0 0 0 0
border: 0 0 0 0
margin: 0 0 0 0
text: "L2 "
LayoutBox node=#16 tag=div box=block
content: (38, 38, 100, 60)
padding: 0 0 0 0
border: 0 0 0 0
margin: 0 0 0 0
inline_context: 1 lines, height=19.2, max_width=12.875183
line[0]: rect=(38, 38, 12.875183, 19.2) fragments=1
frag[0]: rect=(38, 39.6, 12.875183, 16) text="L3" start=false end=false
LayoutBox node=#17 tag=anonymous box=anon
content: (0, 0, 12.875183, 16)
padding: 0 0 0 0
border: 0 0 0 0
margin: 0 0 0 0
text: "L3"