Add a real, spec-compliant CSS3/4 engine (ported from ExCSS via PeachPDF) - #244

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jhaygood86 wants to merge 21 commits into

ArthurHub:masterfrom

jhaygood86:feature/add-css-parser

Commits on Aug 2, 2026

Port of CSS engine from PeachPDF (ExCSS-based)

jhaygood86
authored and
eXpl0it3r
committed
Fix CalcSerializer

jhaygood86
authored and
eXpl0it3r
committed
Replace custom CSS with standards

jhaygood86
authored and
eXpl0it3r
committed
Fixes <br>

jhaygood86
authored and
eXpl0it3r
committed
CSS engine: sync enumerations, tokens and leaf value types

authored and
eXpl0it3r
committed
CSS engine: sync CSS Color 4/5 color science

authored and
eXpl0it3r
committed
CSS engine: sync @property and the calc() time/resolution leaves

authored and
eXpl0it3r
committed
CSS engine: sync CSS logical box-model properties

authored and
eXpl0it3r
committed
CSS engine: sync clip-path, aspect-ratio and box-shadow

authored and
eXpl0it3r
committed
CSS engine: sync value converter infrastructure and grid grammars

authored and
eXpl0it3r
committed
CSS engine: sync CSS Grid properties and factory registrations

authored and
eXpl0it3r
committed
CSS engine: sync @layer and the user-preference media features

authored and
eXpl0it3r
committed
CSS engine: sync font-palette, @font-palette-values and palette-mix()

authored and
eXpl0it3r
committed
CSS engine: sync CSS Nesting, :where() and the parser conformance fixes

authored and
eXpl0it3r
committed
CSS engine: sync trimming/AOT hardening and remaining property updates

authored and
eXpl0it3r
committed
Remove upstream-project references from source comments

authored and
eXpl0it3r
committed
CssData: index nested and layered rules; resolve colours through the engine

authored and
eXpl0it3r
committed
Evaluate @media against the platform, via two new adapter properties

authored and
eXpl0it3r
committed
Re-evaluate @media when the viewport changes

authored and
eXpl0it3r
committed
Remove the -peachpdf-pdf-tag-type property

authored and
eXpl0it3r
committed
Re-evaluate @media when the system colour scheme changes

authored and
eXpl0it3r
committed

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Add a real, spec-compliant CSS3/4 engine (ported from ExCSS via PeachPDF) - #244

Add a real, spec-compliant CSS3/4 engine (ported from ExCSS via PeachPDF)#244
jhaygood86 wants to merge 21 commits into
ArthurHub:masterfrom
jhaygood86:feature/add-css-parser

Commits on Aug 2, 2026

Port of CSS engine from PeachPDF (ExCSS-based)

Fix CalcSerializer

Replace custom CSS with standards

Fixes <br>

CSS engine: sync enumerations, tokens and leaf value types

CSS engine: sync CSS Color 4/5 color science

CSS engine: sync @property and the calc() time/resolution leaves

CSS engine: sync CSS logical box-model properties

CSS engine: sync clip-path, aspect-ratio and box-shadow

CSS engine: sync value converter infrastructure and grid grammars

CSS engine: sync CSS Grid properties and factory registrations

CSS engine: sync @layer and the user-preference media features

CSS engine: sync font-palette, @font-palette-values and palette-mix()

CSS engine: sync CSS Nesting, :where() and the parser conformance fixes

CSS engine: sync trimming/AOT hardening and remaining property updates

Remove upstream-project references from source comments

CssData: index nested and layered rules; resolve colours through the engine

Evaluate @media against the platform, via two new adapter properties

Re-evaluate @media when the viewport changes

Remove the -peachpdf-pdf-tag-type property

Re-evaluate @media when the system colour scheme changes