Indic Matra Category - Top And Left And Right

Top And Left And Right is a specific value within the Indic Matra Category that defines how a dependent vowel sign attaches to a base consonant, indicating that the matra extends both vertically above the consonant and horizontally to both its left and right sides. This positioning is used for certain complex vowel signs in scripts like Bengali or Oriya, where the vowel mark wraps around the consonant on three sides, ensuring proper visual rendering and spacing in shaped text. This value helps distinguish such multi-directional matras from simpler ones that attach only on one side or solely above or below.