Add position-4.vim

https://www.w3.org/TR/2025/WD-css-position-4-20250708/

after/syntax/css/anchor-position-1.vim

@@ -1,4 +1,4 @@
-syn keyword cssFontProp contained anchor-name anchor-scope inset-area position-anchor position-try position-try-options position-try-order
-syn keyword cssFontAttr contained span-left span-right span-x-start span-x-end x-self-start x-self-end span-x-self-start span-x-self-end span-all span-top span-bottom span-y-start span-y-end y-self-start y-self-end span-y-self-start span-y-self-end block-start block-end span-block-start span-block-end self-block-start self-block-end span-self-block-start span-self-block-end inline-start inline-end span-inline-start span-inline-end self-inline-start self-inline-end span-self-inline-start span-self-inline-end span-start span-end self-start self-end span-self-start span-self-end implicit anchor-center most-width most-height most-block-size most-inline-size flip-block flip-inline flip-start
+syn keyword cssFontProp contained anchor-name anchor-scope position-area position-anchor position-try position-try-fallbacks position-try-order position-visibility
+syn keyword cssFontAttr contained span-left span-right span-x-start span-x-end x-self-start x-self-end span-x-self-start span-x-self-end span-all span-top span-bottom span-y-start span-y-end y-self-start y-self-end span-y-self-start span-y-self-end block-start block-end span-block-start span-block-end self-block-start self-block-end span-self-block-start span-self-block-end inline-start inline-end span-inline-start span-inline-end self-inline-start self-inline-end span-self-inline-start span-self-inline-end span-start span-end self-start self-end span-self-start span-self-end anchor-center most-width most-height most-block-size most-inline-size flip-block flip-inline flip-start
 syn region cssFunction contained matchgroup=cssFunctionName start="\<anchor\(-size\)\=\s*(" end=")" oneline keepend
 syn match cssFontDescriptor "@position-try\>" nextgroup=cssFontDescriptorBlock skipwhite skipnl

after/syntax/css/color-hdr-1.vim

@@ -0,0 +1,3 @@
+syn keyword cssFontProp contained dynamic-range-limit
+syn keyword cssFontAttr contained standard constrained-high
+syn region cssFunction contained matchgroup=cssFunctionName start="\<dynamic-range-limit-mix\s*(" end=")" oneline keepend

after/syntax/css/conditional-5.vim

@@ -1 +1,3 @@
+syn keyword cssFontProp contained container-type container-name container
+syn keyword cssFontAttr contained inline-size
 syn match cssFontDescriptor "@\(when\|else\)\>" nextgroup=cssFontDescriptorBlock skipwhite skipnl

after/syntax/css/display-4.vim

@@ -0,0 +1,2 @@
+syn keyword cssFontProp contained reading-flow
+syn keyword cssFontAttr contained flex-visual flex-flow grid-rows grid-columns

after/syntax/css/easing-2.vim

@@ -0,0 +1 @@
+syn region cssFunction contained matchgroup=cssFunctionName start="\<linear\s*(" end=")" oneline contains=cssValueInteger,cssValueNumber,cssValueLength,cssFunctionComma

after/syntax/css/forms-1.vim

@@ -0,0 +1,5 @@
+syn keyword cssFontProp contained slider-orientation
+syn keyword cssFontAttr contained base left-to-right right-to-left top-to-bottom bottom-to-top
+syn keyword cssPseudoClassId contained picker-icon file-selector-button checkmark thumb track fill field-text clear-icon placeholder step-control step-up step-down field-component field-separator color-swatch low-value high-value optimal-value
+syn region cssPseudoClassFn contained matchgroup=cssFunctionName start="\<picker(" end=")" contains=cssStringQ,cssStringQQ
+syn region cssFunction contained matchgroup=cssFunctionName start="\<control-value\s*(" end=")" oneline keepend

after/syntax/css/gaps-1.vim

@@ -0,0 +1,2 @@
+syn keyword cssFontProp contained column-rule-break row-rule-break rule-break column-rule-outset row-rule-outset rule-outset rule-paint-order row-rule-color row-rule-style row-rule-width row-rule rule-color rule-style rule-width rule
+syn keyword cssFontAttr contained spanning-item intersection row-over-column column-over-row

after/syntax/css/grid-3.vim

@@ -0,0 +1,2 @@
+syn keyword cssFontProp contained masonry-direction masonry-fill masonry-flow masonry masonry-template-tracks masonry-template-areas masonry-auto-tracks masonry-track-start masonry-track-end masonry-track masonry-slack item-track item-direction item-wrap item-cross item-pack item-slack item-flow
+syn keyword cssFontAttr contained masonry inline-masonry

after/syntax/css/inline-3.vim

@@ -1,2 +1,2 @@
-syn keyword cssFontProp contained dominant-baseline alignment-baseline baseline-shift baseline-source text-box-edge text-box-trim inline-sizing initial-letter initial-letter-align initial-letter-wrap
-syn keyword cssFontAttr contained central mathematical leading cap ex drop raise ideographic ideographic-ink
+syn keyword cssFontProp contained dominant-baseline alignment-baseline baseline-shift baseline-source line-fit-edge text-box text-box-edge text-box-trim inline-sizing initial-letter initial-letter-align initial-letter-wrap
+syn keyword cssFontAttr contained central mathematical leading cap ex drop raise ideographic ideographic-ink trim-start trim-end

after/syntax/css/mixins-1.vim

@@ -0,0 +1,2 @@
+syn keyword cssFontProp contained result
+syn match cssFontDescriptor "@function\>" nextgroup=cssFontDescriptorBlock skipwhite skipnl

after/syntax/css/multicol-2.vim

@@ -0,0 +1 @@
+syn keyword cssPseudoClassId contained column

after/syntax/css/overflow-5.vim

@@ -0,0 +1,2 @@
+syn keyword cssFontProp contained scroll-marker-group
+syn keyword cssPseudoClassId contained scroll-marker-group scroll-marker target-current

after/syntax/css/position-4.vim

@@ -0,0 +1,2 @@
+syn keyword cssFontProp contained overlay
+syn keyword cssPseudoClassId contained backdrop

after/syntax/css/pseudo-4.vim

@@ -1 +1 @@
-syn keyword cssPseudoClassId contained prefix postfix target-text spelling-error grammer-error file-selectors-button
+syn keyword cssPseudoClassId contained prefix suffix target-text spelling-error grammer-error file-selectors-button search-text details-content

after/syntax/css/scroll-snap-2.vim

@@ -0,0 +1,2 @@
+syn keyword cssFontProp contained scroll-start-target
+syn keyword cssPseudoClassId contained snapped snapped-x snapped-y snapped-block snapped-inline

after/syntax/css/shapes-1.vim

@@ -1,3 +1,3 @@
 syn keyword cssFontProp contained shape-outside shape-image-threshold shape-margin
 syn keyword cssFontAttr contained margin-box
-syn region cssFunction contained matchgroup=cssFunctionName start="\<\(inset\|circle\|ellipse\|polygon\)\s*(" end=")" oneline keepend
+syn region cssFunction contained matchgroup=cssFunctionName start="\<\(inset\|circle\|ellipse\|polygon\|shape\)\s*(" end=")" oneline keepend

after/syntax/css/values-5.vim

@@ -0,0 +1,3 @@
+syn keyword cssFontProp contained interpolate-size
+syn keyword cssFontAttr contained numeric-only allow-keyword
+syn region cssFunction contained matchgroup=cssFunctionName start="\<\(\(\(media\|container\)-\)\=progress\|\(\(calc\|transform\)-\)\=mix\|cross-fade\|first-valid\|toggle\|if\|inherit\|random\(-item\)\=\|sibling-\(count\|index\)\|calc-size\)\s*(" end=")" oneline keepend