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ValidNumStr

Description

Function ValidNumStr returns TRUE if the specified string can be converted into a numeric value. If TRUE, the numeric value is returned.

FUNCTION ValidNumStr(
				str       : STRING;
				VAR value : REAL): BOOLEAN;
def vs.ValidNumStr(str):
    return (BOOLEAN, value)

Parameters

Name Type Description
str STRING String value to be checked for numeric validity.
value REAL Numeric value converted from input string.

Remarks

(Joel Sciamma, 2007.01.13):

  • Returns TRUE if the specified string can be converted into a numeric value and places the value in the REAL parameter.
  • Returns FALSE if the specified string can not be converted into a numeric value and places zero in the REAL parameter.

Examples

VectorScript

CASE Item OF
{// OK Button //}
1:BEGIN
IF ValidNumStr(GetField(4),value) THEN BEGIN
Done:=TRUE;
replaceValue:= GetField(6);

IF ItemSel(9) THEN textMode:=2;
IF ItemSel(10) THEN textMode:=4;
IF ItemSel(11) THEN textMode:=8;
IF ItemSel(12) THEN layerMode:=16;
IF ItemSel(13) THEN layerMode:=32;
IF ItemSel(14) THEN caseMode:=1;
END
ELSE SysBeep;
END;

Python

str = '5m + 5cm'
ok, num = vs.ValidNumStr( str )
vs.AlrtDialog( num )
OK := ValidNumStr(tmpStr, s);
IF (NOT OK) OR (s <= 0) THEN
BEGIN
	SysBeep;
	SelectEditText(dialogID, 4);

1: BEGIN
	IF method = 1 THEN BEGIN
		GetItemText(dialogID, 6, tmpStr);
		OK := ValidNumStr (tmpStr, nSegs);
		IF (NOT OK) OR (nSegs < 1) THEN
		BEGIN
			Sysbeep;
			AlrtDialog (GetPlugInString (3018));

ok := FALSE;
outBearing := 0;
format := 'azimuth';
{Azimuth-Decimal}
if ValidNumStr(inBearingStr, outBearing) then BEGIN
	ok := TRUE;
	outBearing := Compass2Cad(outBearing);
END;
isNumOk, textPtx = vs.ValidNumStr( vs.GetRField( gObjHandle, gObjName, kNNA_TextLocX ) )
isNumOK, textPty = vs.ValidNumStr( vs.GetRField( gObjHandle, gObjName, kNNA_TextLocY ) )

Version

Availability: from All Versions

Category