-- card: 25508 from stack: in.01
-- bmap block id: 0
-- flags: 0000
-- background id: 3166
-- name: 


-- part contents for background part 1
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 * function to create the context display...
 *
 *  ("CONTEXT", instanceNum, contextLines, targetContextLine,
 *    contextLineLength, contextWordOffset, maxContextLinesSkipped,
 *    contextGutterWidth, ptrFileRefNum, textFileRefNum, subsetHandle)
 *  --  returns with contextLines of display followed by contextLines
 *      of instanceNum-textPtr pairs, with context instance instanceNum
 *      on line targetContextLine; if contextGutterWidth is non-zero,
 *      then that number of spaces are placed before the key word...
 * 
 * function to empty out a subset so that no words are in the valid
 * region:
 *
 *  ("EMPTYSUBSET", subsetHandle)
 *  --  returns quietly with nothing if it successfully sets all bits
 *      in the subset flag array to zero; beeps and gives an error msg
 *      if it fails somehow...
 *