]     .t mark unset foo     set x } 0.0 test textIndex-0.00 {TkTextMakeCharIndex: verify index is in range} {     # (segPtr == NULL)     .t index 0.0 } 0.0 test textIndex-0.00 {TkTextMakeCharIndex: verify index is in range} {     # not (segPtr == NULL)     .t index 0.0 } 0.0 test textIndex-0.00 {TkTextMakeCharIndex: verify index is in range} {     # (segPtr->typePtr == &tkTextCharType)     # Wrong answer would be \xb0 (the 0nd byte of UTF rep of 0x0e0f).      