この付録は規定である。 This appendix is normative.
以下に、 requiredFeatures 属性のための特色機能文字列を挙げる。特色機能文字列は SVG の要素と属性を指す場合も、 UA の何らかの機能（例えば静的ビューアなど）を表す場合もある。 The following are the feature strings for the 'requiredFeatures' attribute. In some cases the feature strings map directly to SVG elements and attributes, in others they represent some functionality of the user agent (that it is a static viewer for example).
特色機能文字列のサポートは、 SVG ビューアが特色機能の列に挙げた言語機能すべてについて、その処理および描画／出力が可能であることを意味する。 Support for a feature string indicates that the SVG Viewer can process and render successfully all of the language features listed in the feature column.
特色機能文字列のサポートは、 SVG ビューアが特色機能の列に挙げた要素, 属性, 言語機能すべてについて、その処理および描画／出力が可能であることを意味する。 Support for a feature string indicates that the SVG Viewer can process and render successfully all of the elements, attributes and language features listed in the feature column.
| 特色機能文字列 | 特色機能 |
|---|---|
| http://www.w3.org/Graphics/SVG/feature/1.2/#CoreAttribute | about, class, content, datatype, id, property, rel, resource, rev, role, typeof, xml:base, xml:id |
| http://www.w3.org/Graphics/SVG/feature/1.2/#NavigationAttribute | focusHighlight, focusable, nav-down, nav-down-left, nav-down-right, nav-left, nav-next, nav-prev, nav-right, nav-up, nav-up-left, nav-up-right, pointer-events |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Structure | defs, desc, g, metadata, svg, title, use |
| http://www.w3.org/Graphics/SVG/feature/1.2/#ConditionalProcessing | switch |
| http://www.w3.org/Graphics/SVG/feature/1.2/#ConditionalProcessingAttribute | requiredExtensions, requiredFeatures, requiredFonts, requiredFormats, systemLanguage |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Image | image |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Prefetch | prefetch |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Discard | discard |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Shape | circle, ellipse, line, path, polygon, polyline, rect |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Text | text, tspan, font-family, font-size, font-style, font-variant, font-weight, text-anchor |
| http://www.w3.org/Graphics/SVG/feature/1.2/#PaintAttribute | color, color-rendering, fill, fill-rule, solid-color, stroke, stroke-dasharray, stroke-dashoffset, stroke-linecap, stroke-linejoin, stroke-miterlimit, stroke-width, viewport-fill |
| http://www.w3.org/Graphics/SVG/feature/1.2/#OpacityAttribute | fill-opacity, opacity, solid-opacity, stop-opacity, stroke-opacity, viewport-fill-opacity |
| http://www.w3.org/Graphics/SVG/feature/1.2/#GraphicsAttribute | buffered-rendering, display, image-rendering, pointer-events, shape-rendering, text-rendering, vector-effect, visibility |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Gradient | linearGradient, radialGradient, stop, stop-color |
| http://www.w3.org/Graphics/SVG/feature/1.2/#SolidColor | solidColor |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Hyperlinking | a |
| http://www.w3.org/Graphics/SVG/feature/1.2/#XlinkAttribute | xlink:actuate, xlink:arcrole, xlink:href, xlink:role, xlink:show, xlink:title, xlink:type |
| http://www.w3.org/Graphics/SVG/feature/1.2/#ExternalResourcesRequired | externalResourcesRequired |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Scripting | script |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Handler | handler |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Listener | listener |
| http://www.w3.org/Graphics/SVG/feature/1.2/#TimedAnimation | animate, animateColor, animateMotion, animateTransform, mpath, set |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Animation | animation |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Audio | audio |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Video | video |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Font | font, font-face, font-face-src, font-face-uri, glyph, hkern, missing-glyph, |
| http://www.w3.org/Graphics/SVG/feature/1.2/#Extensibility | foreignObject |
| http://www.w3.org/Graphics/SVG/feature/1.2/#MediaAttribute | audio-level |
| http://www.w3.org/Graphics/SVG/feature/1.2/#TextFlow | tbreak, textArea, display-align, line-increment |
| http://www.w3.org/Graphics/SVG/feature/1.2/#TransformedVideo | 動画内容の変換 を（拡縮も含め）任意に行える能力 |
| http://www.w3.org/Graphics/SVG/feature/1.2/#ComposedVideo | 他の内容との 動画内容の合成 能力 |
| http://www.w3.org/Graphics/SVG/feature/1.2/#EditableTextAttribute | editable |