Files
rust_browser/tests/goldens/expected/262-ex-units.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, 126.4)
padding: 0 0 0 0
border: 0 0 0 0
margin: 0 0 0 0
LayoutBox node=#8 tag=body box=block
content: (8, 16, 784, 102.4)
padding: 0 0 0 0
border: 0 0 0 0
margin: 8 8 8 8
LayoutBox node=#10 tag=p box=block
content: (8, 16, 784, 19.2)
padding: 0 0 0 0
border: 0 0 0 0
margin: 16 0 16 0
inline_context: 1 lines, height=19.2, max_width=68.85169
line[0]: rect=(8, 16, 68.85169, 19.2) fragments=3
frag[0]: rect=(8, 17.6, 39.612335, 16) text="Margin" start=false end=false
frag[1]: rect=(50.666668, 17.6, 10.290749, 16) text="in" start=false end=false
frag[2]: rect=(64.01175, 17.6, 12.839941, 16) text="ex" start=false end=false
LayoutBox node=#11 tag=anonymous box=anon
content: (0, -8, 68.85169, 16)
padding: 0 0 0 0
border: 0 0 0 0
margin: 0 0 0 0
text: "Margin in ex"
LayoutBox node=#13 tag=p box=block
content: (16, 59.2, 768, 19.2)
padding: 8 8 8 8
border: 0 0 0 0
margin: 16 0 16 0
inline_context: 1 lines, height=19.2, max_width=74.90161
line[0]: rect=(16, 59.2, 74.90161, 19.2) fragments=3
frag[0]: rect=(16, 60.800003, 45.662262, 16) text="Padding" start=false end=false
frag[1]: rect=(64.71659, 60.800003, 10.290749, 16) text="in" start=false end=false
frag[2]: rect=(78.06167, 60.800003, 12.839941, 16) text="ex" start=false end=false
LayoutBox node=#14 tag=anonymous box=anon
content: (0, 8, 74.90162, 16)
padding: 0 0 0 0
border: 0 0 0 0
margin: 0 0 0 0
text: "Padding in ex"
LayoutBox node=#16 tag=div box=block
content: (8, 102.4, 80, 16)
padding: 0 0 0 0
border: 0 0 0 0
margin: 0 0 0 0
inline_context: 1 lines, height=19.200005, max_width=46.790016
line[0]: rect=(8, 102.4, 46.790016, 19.2) fragments=2
frag[0]: rect=(8, 104, 12.745961, 16) text="Ex" start=false end=false
frag[1]: rect=(23.800293, 104, 30.989721, 16) text="width" start=false end=false
LayoutBox node=#17 tag=anonymous box=anon
content: (0, 8, 46.790012, 16)
padding: 0 0 0 0
border: 0 0 0 0
margin: 0 0 0 0
text: "Ex width"