Rewrite syntax for ST4

.gitattributes

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+# Git
+.github/        export-ignore
+.gitattributes  export-ignore
+.gitignore      export-ignore
+
+# Development
+tests/          export-ignore

.github/workflows/ci-syntax-tests.yml

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+name: CI Syntax Tests
+
+on:
+  push:
+    branches:
+      - master
+      - st4107
+    tags-ignore:
+      - '**'
+    paths:
+      - '.github/workflows/ci-syntax-tests.yml'
+      - '**.sublime-syntax'
+      - '**/syntax_test_*'
+  pull_request:
+    paths:
+      - '.github/workflows/ci-syntax-tests.yml'
+      - '**.sublime-syntax'
+      - '**/syntax_test_*'
+  workflow_dispatch:
+
+jobs:
+  syntax_tests:
+    name: Sublime Text ${{ matrix.build }}
+    runs-on: ubuntu-latest
+    timeout-minutes: 15  # default is 6 hours!
+    strategy:
+      matrix:
+        include:
+          # Stable ST4 builds
+          - build: 4107
+            default_packages: v4107
+          - build: 4126
+            default_packages: v4126
+          - build: 4143
+            default_packages: v4143
+          - build: 4152
+            default_packages: v4152
+          - build: 4169
+            default_packages: v4169
+          - build: 4180
+            default_packages: v4180
+          # Latest dev build
+          - build: latest
+            default_packages: master
+    steps:
+      - name: Checkout Default Packages
+        uses: actions/checkout@v4
+        with:
+          repository: sublimehq/Packages
+          ref: ${{ matrix.default_packages }}
+          path: st_syntax_tests/Data/Packages
+
+      - name: Delete default package tests
+        run: find st_syntax_tests/Data/Packages/*/ -type f -name 'syntax_test*' -exec rm -v '{}' \;
+
+      - name: Checkout XSL
+        uses: actions/checkout@v4
+        with:
+          path: st_syntax_tests/Data/Packages/XSL
+
+      - name: Run Syntax Tests for Sublime Text ${{ matrix.build }}
+        run: |
+          if [[ "${{ matrix.build }}" == "latest" ]]; then
+            wget -O st_syntax_tests.tar.xz https://download.sublimetext.com/latest/dev/linux/x64/syntax_tests
+          else
+            wget -O st_syntax_tests.tar.xz https://download.sublimetext.com/st_syntax_tests_build_${{ matrix.build }}_x64.tar.xz
+          fi
+          tar xf st_syntax_tests.tar.xz
+          cd st_syntax_tests
+          ./syntax_tests

.gitignore

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+dev/

.python-version

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+3.8

Completions/XPath Axes Names.sublime-completions

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+{
+    // if current token is an illegal axis, double colon already exists
+    "scope": "source.xpath invalid.illegal.axis",
+    "completions": [
+        {
+            "trigger": "ancestor::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "ancestor"
+        },
+        {
+            "trigger": "ancestor-or-self::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "ancestor-or-self"
+        },
+        {
+            "trigger": "attribute::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "attribute"
+        },
+        {
+            "trigger": "child::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "child"
+        },
+        {
+            "trigger": "descendant::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "descendant"
+        },
+        {
+            "trigger": "descendant-or-self::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "descendant-or-self"
+        },
+        {
+            "trigger": "following::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "following"
+        },
+        {
+            "trigger": "following-sibling::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "following-sibling"
+        },
+        {
+            "trigger": "namespace::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "namespace"
+        },
+        {
+            "trigger": "parent::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "parent"
+        },
+        {
+            "trigger": "preceding::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "preceding"
+        },
+        {
+            "trigger": "preceding-sibling::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "preceding-sibling"
+        },
+        {
+            "trigger": "self::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "self"
+        }
+    ]
+}

Completions/XPath Axes.sublime-completions

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+{
+    // if current token is not an illegal axis, double colon does not yet exist and needs to be added
+    "scope": "source.xpath - source.xpath comment - source.xpath string - source.xpath invalid.illegal.axis",
+    "completions": [
+        {
+            "trigger": "ancestor::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "ancestor::"
+        },
+        {
+            "trigger": "ancestor-or-self::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "ancestor-or-self::"
+        },
+        {
+            "trigger": "attribute::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "attribute::"
+        },
+        {
+            "trigger": "child::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "child::"
+        },
+        {
+            "trigger": "descendant::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "descendant::"
+        },
+        {
+            "trigger": "descendant-or-self::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "descendant-or-self::"
+        },
+        {
+            "trigger": "following::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "following::"
+        },
+        {
+            "trigger": "following-sibling::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "following-sibling::"
+        },
+        {
+            "trigger": "namespace::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "namespace::"
+        },
+        {
+            "trigger": "parent::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "parent::"
+        },
+        {
+            "trigger": "preceding::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "preceding::"
+        },
+        {
+            "trigger": "preceding-sibling::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "preceding-sibling::"
+        },
+        {
+            "trigger": "self::",
+            "annotation": "XPath 1.0",
+            "kind": ["navigation", "a", "axis"],
+            "contents": "self::"
+        },
+    ]
+}