[css-inline] which baseline values are required?

[dauwhe]

We currently have the following values for dominant baseline: auto | text-bottom | alphabetic | ideographic | middle | central | mathematical | hanging | text-top

Can any of these be dropped? Are there any missing baselines that we need?

[dauwhe]

I just dumped the base table for Adobe Devanagari Regular. I could find no evidence of a metric for a hanging baseline. Does any commonly-used font have such a baseline?

<BASE>
    <Version value="0x00010000"/>
    <HorizAxis>
      <BaseTagList>
        <!-- BaseTagCount=2 -->
        <BaselineTag index="0" value="ideo"/>
        <BaselineTag index="1" value="romn"/>
      </BaseTagList>
      <BaseScriptList>
        <!-- BaseScriptCount=4 -->
        <BaseScriptRecord index="0">
          <BaseScriptTag value="DFLT"/>
          <BaseScript>
            <BaseValues>
              <DefaultIndex value="1"/>
              <!-- BaseCoordCount=2 -->
              <BaseCoord index="0" Format="1">
                <Coordinate value="-409"/>
              </BaseCoord>
              <BaseCoord index="1" Format="1">
                <Coordinate value="0"/>
              </BaseCoord>
            </BaseValues>
            <!-- BaseLangSysCount=0 -->
          </BaseScript>
        </BaseScriptRecord>
        <BaseScriptRecord index="1">
          <BaseScriptTag value="dev2"/>
          <BaseScript>
            <BaseValues>
              <DefaultIndex value="1"/>
              <!-- BaseCoordCount=2 -->
              <BaseCoord index="0" Format="1">
                <Coordinate value="-409"/>
              </BaseCoord>
              <BaseCoord index="1" Format="1">
                <Coordinate value="0"/>
              </BaseCoord>
            </BaseValues>
            <!-- BaseLangSysCount=0 -->
          </BaseScript>
        </BaseScriptRecord>
        <BaseScriptRecord index="2">
          <BaseScriptTag value="deva"/>
          <BaseScript>
            <BaseValues>
              <DefaultIndex value="1"/>
              <!-- BaseCoordCount=2 -->
              <BaseCoord index="0" Format="1">
                <Coordinate value="-409"/>
              </BaseCoord>
              <BaseCoord index="1" Format="1">
                <Coordinate value="0"/>
              </BaseCoord>
            </BaseValues>
            <!-- BaseLangSysCount=0 -->
          </BaseScript>
        </BaseScriptRecord>
        <BaseScriptRecord index="3">
          <BaseScriptTag value="latn"/>
          <BaseScript>
            <BaseValues>
              <DefaultIndex value="1"/>
              <!-- BaseCoordCount=2 -->
              <BaseCoord index="0" Format="1">
                <Coordinate value="-409"/>
              </BaseCoord>
              <BaseCoord index="1" Format="1">
                <Coordinate value="0"/>
              </BaseCoord>
            </BaseValues>
            <!-- BaseLangSysCount=0 -->
          </BaseScript>
        </BaseScriptRecord>
      </BaseScriptList>
    </HorizAxis>
  </BASE>