Tag Archives: EVALQ()

SP Misc/Other Functions

Posted on by vivaclipper 
 ISPART()       Determines if a value is part of a set
 CURD()         Return current drive letter
 SBROWS()       Determine number of rows in a box
 ISPRN()        Detects printer ready (or not) on LPT1, 2 or 3
 SBCENTER()     Centers box coordinates
 SBCOLS()       Determine number of columns in a box
 EVALQ()        Evaluates a logical condition in a string
 ENDSWITH()     Determines if a string ends with another string
 PRNTFRML()     Prints a formletter created by formletr()
 CDIR()         Change Directory
 VARLEN()       Returns length of a variable  of any type

SP_EVALQ

Posted on by vivaclipper 
EVALQ()

  Short:
  ------
  EVALQ() Evaluates a logical condition in a string

  Returns:
  --------
  <lTrue> => result of evaluating condition

  Syntax:
  -------
  EVALQ(cCondition)

  Description:
  ------------
  Macro expands <cCondition> and returns logical result

  Examples:
  ---------
   locate for evalq( sls_query() )

  Notes:
  -------
  In Clipper 5.01, you're better off doing
       bQueryblock := &("{||"+sls_query()+"}")
       locate for eval(bQueryblock)

  You'll get close to a 100% speed improvement.

  Source:
  -------
  S_EVALQ.PRG