Caché ObjectScript Reference - InterSystems Documentation

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Caché ObjectScript CommandsGOTOTransfers control.GOTO:pcGOTO:pc goargument,...G:pcG:pc goargument,...where goargument is:location:pcArgumentspclocationOptional — A postconditional expression.Optional — The point to which control will be transferred.DescriptionThe GOTO command has two forms:• Without an argument• With an argumentGOTO Without an ArgumentGOTO without an argument resumes normal program execution after Caché encounters aBREAK command in the currently executing code. You can use the argumentless GOTOonly from the programmer prompt.GOTO With an ArgumentGOTO with the argument location transfers control to the specified location. If you specifya postconditional expression on either the command or the argument, Caché transfers controlonly if the postconditional expression evaluates to TRUE (non-zero).You can use GOTO location from the programmer prompt to resume at a different location.You can specify a $CASE function as a GOTO command argument.46 Caché ObjectScript Reference
ArgumentspcAn optional postconditional expression that can make the command conditional. If the postconditionalexpression is appended to the GOTO command keyword, Caché executes theGOTO command if the postconditional expression is true (evaluates to a non-zero numericvalue). Caché does not execute the GOTO command if the postconditional expression isfalse (evaluates to zero). If the postconditional expression is appended to an argument, Cachéexecutes the argument if the postconditional expression is true (evaluates to a non-zeronumeric value). If the postconditional expression is false (evaluates to zero), Caché skips thatargument and evaluates the next argument (if there is one) or the next command. For furtherdetails, refer to Command Postconditional Expressions in Using Caché ObjectScript.locationThe point to which control will be transferred. It is required in routine code. It is optionalfrom the programmer prompt. You can specify location as a single value or as a commaseparatedlist of values (with postconditionals) and can take any of the following forms:label+offset specifies a line label within the current routine. The optional +offset is a nonnegativeinteger that specifies the number of lines after the label at which execution is to start.label+offset^routine specifies a line label within the named routine, which resides on disk.Caché loads the routine from disk and continues execution at the indicated label. The optional+offset is a nonnegative integer that specifies the number of lines after the label at whichexecution is to start.^routine specifies a routine that resides on disk. Caché loads the routine from disk and continuesexecution at the first line of executable code within the routine. If you specify a nonexistentroutine, Caché issues a error message. For more information, referto the $ZERROR special variable.You can also reference location as a variable containing any of the above forms. In this case,though, you must use name indirection. location cannot specify a subroutine label that isdefined with a formal parameter list or the name of a user-defined function or procedure. Ifyou specify a non-existent label, Caché issues a error message. For more information,refer to Indirection in Using Caché ObjectScript.ExampleGOTOIn the following example, the GOTO directs execution to one of three locations dependingon the user-supplied age value. The location is a subroutine label that is stored in variableloc and then referenced by means of name indirection (@loc).Caché ObjectScript Reference 47
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Caché ObjectScriptReferenceVersion
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Table of ContentsSymbols and Abbrev
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$ORDER ............................
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$ZB ...............................
Page 9 and 10: $ZUTIL(68,21) .....................
Page 11 and 12: $ZUTIL(128,1) .....................
Page 13: List of FiguresClient/Server Connec
Page 16 and 17: Symbols and AbbreviationsSymbol""##
Page 18 and 19: Symbols and AbbreviationsSymbol( )*
Page 21 and 22: Symbols Used in Caché ObjectScript
Page 23 and 24: Abbreviations Used in Caché Object
Page 25 and 26: Abbreviations Used in Caché Object
Page 29 and 30: Caché ObjectScript CommandsThis do
Page 31 and 32: BREAKBREAK without an ArgumentArgum
Page 33 and 34: BREAKNote:BREAK 0 is ineffective in
Page 35 and 36: DescriptionCLOSE device releases ow
Page 37 and 38: ArgumentspcAn optional postconditio
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Page 41 and 42: The Argumentless DO CommandThe argu
Page 43 and 44: DOMainSET x=1,y=2,z=3WRITE !,"In Ma
Page 45 and 46: The DO command has a postconditiona
Page 47 and 48: DO WHILE• QUIT command• Argumen
Page 49 and 50: DO WHILEQUIT and GOTOThe QUIT comma
Page 51 and 52: ELSEELSEClause of block-oriented IF
Page 53 and 54: DescriptionFOR is a block-oriented
Page 55 and 56: FORMainloopFOR {READ !,"Number: ",n
Page 57 and 58: cution of the loop. The FOR loop te
Page 59: a range with initial value, increme
Page 63 and 64: GOTOtestgotoAWRITE !,"running A"DO
Page 65 and 66: HALTIn the following example, HALT
Page 67 and 68: HANGNote:You cannot express hangtim
Page 69 and 70: ELSEIF and ELSE clauses are optiona
Page 71 and 72: JOBMainloopNEW sex,ageREAD !,"What
Page 73 and 74: JOBpcroutineroutine-paramsclassname
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Page 77 and 78: JOBParameterprincipal-outputDescrip
Page 79: a jobbed process, you can use param
Page 82 and 83: Caché ObjectScript CommandsRemote
Page 84 and 85: Caché ObjectScript Commands• If
Page 86 and 87: Caché ObjectScript Commandsserver
Page 88 and 89: Caché ObjectScript CommandsDescrip
Page 90 and 91: Caché ObjectScript CommandsNotesKI
Page 92 and 93: Caché ObjectScript CommandsThe nod
Page 94 and 95: Caché ObjectScript CommandsLOCK Wi
Page 96 and 97: Caché ObjectScript Commandslocknam
Page 98 and 99: Caché ObjectScript Commands• Set
Page 100 and 101: Caché ObjectScript Commands• ^c
Page 102 and 103: Caché ObjectScript CommandsLocking
Page 104 and 105: Caché ObjectScript CommandsMERGEMe
Page 106 and 107: Caché ObjectScript CommandsInitial
Page 108 and 109: Caché ObjectScript CommandsNEWCrea
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Caché ObjectScript Commandssaves t
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Caché ObjectScript CommandsIn the
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Caché ObjectScript CommandsOPENAcq
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Caché ObjectScript Commands• Dev
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Caché ObjectScript Commandsmnespac
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Caché ObjectScript CommandsFor som
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Caché ObjectScript Commands• Wit
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Caché ObjectScript CommandsQUITTer
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Caché ObjectScript CommandsQUIT an
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Caché ObjectScript CommandsTest WR
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Caché ObjectScript CommandsThe var
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Caché ObjectScript CommandsNote th
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Caché ObjectScript CommandsA timeo
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Caché ObjectScript CommandsType of
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Caché ObjectScript CommandsReading
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Caché ObjectScript CommandsSETAssi
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Caché ObjectScript Commandswas cre
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Caché ObjectScript Commandswith th
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Caché ObjectScript CommandsFor exa
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Caché ObjectScript CommandsThe fol
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Caché ObjectScript CommandsDescrip
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Caché ObjectScript CommandsTROLLBA
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Caché ObjectScript CommandsArgumen
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Caché ObjectScript CommandsSee Als
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Caché ObjectScript CommandsSET ^a(
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Caché ObjectScript CommandsThe par
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Caché ObjectScript Commandsword) w
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Caché ObjectScript Commands• Log
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Caché ObjectScript Commands• VIE
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Caché ObjectScript CommandsAfter r
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Caché ObjectScript CommandsModen >
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Caché ObjectScript CommandsQUIT an
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Caché ObjectScript CommandsWRITEDi
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Caché ObjectScript CommandsfA form
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Caché ObjectScript CommandsMnemoni
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Caché ObjectScript CommandsCode-1-
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Caché ObjectScript CommandsAfter C
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Caché ObjectScript CommandsXECUTE
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Caché ObjectScript FunctionsA func
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$ASCII$ASCIIReturns the character c
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$ASCIISTSET String="ThIs Is a MiXeD
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$BIT// Set a to [0,0,1,1]SET $BIT(a
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ExamplesIf bitstring= [0,0,1,1,0],
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If bitstring = [0,0,1,1,0], when se
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$BITLOGICNote:When $BITLOGIC is sup
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See Also• $BIT function• $BITCO
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$CHARREAD "Input a number 1-3: ",xS
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$CHARABCACYou can use decimal numer
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$DATAStatusValue011011MeaningThe va
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$DATAWhen executed, this code might
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Because numbers generated by $DOUBL
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$EXTRACT$EXTRACTExtracts specified
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is an asterisk, $EXTRACT returns th
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$EXTRACTSET x="ABCD"SET $EXTRACT(x,
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$FACTOR• $ZEXP function• $ZLN f
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$FIND$FINDFinds a substring by valu
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$FNUMBER• $LIST function• $PIEC
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You can include the decimal option
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$GET$GETReturns the data value of a
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$GETIF $GET(^client(i))="" { QUIT }
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The num parameter can be a positive
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$INCREMENTKILL xyzWRITE !,$INCREMEN
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DescriptionThe $INUMBER function va
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$INUMBER• No sign or parentheses.
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In the following example, $INUMBER
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$ISVALIDNUMSET a="certainly not an
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$ISVALIDNUMmin and maxYou can speci
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$NORMALIZE parses multiple trailing
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the end of width. If the expression
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In the following example, the first
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$LIST• $LIST(list) returns the fi
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If the value of the position parame
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$LISTBUILDresults of $LISTBUILD are
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In the following example, ZZDUMP sh
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$LISTFINDSET x=$CHAR(0,0,0,1,16,27,
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If the value of the startafter para
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$LISTGET• $LISTFIND function• $
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If the value of the position parame
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$LISTNEXT$LISTNEXTRetrieves element
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Description$LISTSAME compares the c
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$LISTTOSTRING• $LISTNEXT• $LIST
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$NAME$NAMEReturns the name value of
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with a naked reference to return th
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$NEXT$NEXTReturns the value of the
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The scale parameter value causes th
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• Trailing + and - signs: Both fu
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• Rounding factor: an integer ind
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leading and trailing zeros, and del
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For unsubscripted local variables,
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$ORDER$ORDER Uses Naked Global Refe
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ParametersplistThe target string fr
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In the following example, both $PIE
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The following examples also returns
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$QLENGTH$QLENGTHReturns the number
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$QSUBSCRIPTCode< -1-10nReturn Value
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ExampleThis example presents a gene
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function uses a naked reference to
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$REVERSE$REVERSEReturns the charact
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or immediately after a $SELECT func
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If successful, $SORTBEGIN returns a
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$STACKDOXECUTE$$ECODEReturned when
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$STACK$STACK Code String Arguments
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$TEXTroutineIf specified alone, it
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$TRANSLATE$TRANSLATEPerforms charac
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$VIEW$VIEWReturns the contents of m
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double quotes. If the length parame
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$VIEWStart OPEN 63WRITE !,"Opening
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Math and Time FunctionsThe followin
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$ZARCSINREAD "Input a number: ",num
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$ZCOS210-1returns 1.107148717794090
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ParametersnAn angle in radians, spe
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$ZDATE$ZDATEValidates date and conv
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ParametershdateThe internal date fo
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$ZDATE“Jan Feb Mar Apr May Jun Ju
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$ZDATEerroptThis parameter suppress
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oth of the above lines generate a
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$ZDATE• $ZDATETIME function• $Z
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is a date, the second integer is a
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$ZDATEHSyntaxMmmmmMeaningFull name
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When yearopt=5, endwin is a numeric
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• If you specify an invalid dform
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• You can use the $ZDATEH functio
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• $ZDATETIME(hdatetime) returns t
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$ZDATETIMEtformatA numeric value th
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$ZDATETIMEThe monthlist string has
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$ZDATETIMEmindateA numeric value th
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ODBC date format (dformat=3) will a
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$ZDATETIMEH$ZDATETIMEHValidates dat
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$ZDATETIMEH• The format Mmm DD YY
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$ZDATETIMEHValue678MeaningExpress t
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$ZDATETIMEHstartwinA numeric value
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• If you specify an otherwise val
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$ZEXP$ZEXPReturns the natural logar
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ParametersnumA string value or a nu
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ExamplesThe following example write
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$ZPOWERgenerates an error.See Also
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values to the corresponding multipl
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an error. You can use the absolute
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$ZTIME$ZTIMEConverts the internal s
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In the examples that follow, Htime
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$ZTIMEH$ZTIMEHConverts a time value
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$ZTIMEHTime DelimiterBy default, Ca
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Routine, Debugging, and Other Comma
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Caché ObjectScript Special Variabl
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Structured System VariablesA struct
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the $ZNSPACE special variable to de
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^$JOB• ZNSPACE command• $ZNSPAC
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^$LOCKSET x=$QUERY(^$JOB(""))WRITE
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The following example tests for the
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DescriptionYou can use the ^$ROUTIN
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^$ROUTINE• $ORDER function• $QU
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System and Other Functionsnumbers,
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System and Other FunctionsThe bit_o
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System and Other FunctionsWRITE $ZB
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System and Other Functions$ZCONVERT
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System and Other FunctionsEncoding
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System and Other FunctionsDescripti
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System and Other FunctionsNote that
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System and Other FunctionsDeclarati
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System and Other Functionstypedef s
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System and Other FunctionsError Mes
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System and Other Functions$ZF(-2)Ex
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System and Other Functions$ZF(-3) c
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System and Other FunctionsEstablish
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System and Other Functions$ZISWIDEC
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System and Other FunctionsSee Also
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System and Other FunctionsParameter
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System and Other FunctionslangAn in
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System and Other FunctionsZNSPACE "
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System and Other Functions$ZPOSITIO
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System and Other FunctionsFor VMS,
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System and Other Functions$ZSTRIPRe
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System and Other FunctionsSET str="
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System and Other FunctionsReturn Va
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System and Other FunctionsThus, if
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System and Other FunctionsYou can u
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System and Other FunctionsExamplesT
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System and Other Functions$ZUTIL(18
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System and Other FunctionsSET A="Fr
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System and Other FunctionsthirdSpec
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System and Other FunctionsExampleWR
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System and Other FunctionsDatabase
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System and Other FunctionsCluster L
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System and Other FunctionsDirectory
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System and Other FunctionsAny form
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System and Other Functions• $ZUTI
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System and Other FunctionsSubfuncti
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System and Other FunctionsExampleTh
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System and Other FunctionsError on
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System and Other FunctionsWhen a ne
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System and Other FunctionsUSER>XECU
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System and Other FunctionsCaché pr
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System and Other FunctionsThis func
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System and Other FunctionsSubfuncti
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System and Other Functions• $GET
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System and Other Functionsor "RW" m
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System and Other FunctionsReading f
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System and Other Functionsprincipal
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System and Other FunctionsTCOMMIT c
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System and Other Functionsa $ZDATE
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System and Other FunctionsThis conf
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System and Other FunctionsNotes$ZUT
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System and Other FunctionsWRITE $ZD
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System and Other FunctionsEvery tim
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System and Other Functions• $TEST
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System and Other FunctionsValue6789
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System and Other Functionsreturns:
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System and Other FunctionsFlag67891
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System and Other Functions8: regula
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System and Other FunctionsUSER>WRIT
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System and Other Functionsas the cu
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System and Other Functions• Go to
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System and Other FunctionsNote:Beca
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System and Other FunctionsExampleTh
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System and Other Functions• $ZLCH
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System and Other FunctionsConversio
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System and Other Functions$ZZENKAKU
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The %ZLANG Language Extension Libra
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Legacy Commands and FunctionsLegacy
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DescriptionDO (legacy version)Note:
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When a block ends, as indicated by
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See Also• DO command• $TEST spe
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FOR (legacy version)increment is po
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len-2, only the last character will
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FOR (legacy version)Incrementing wi
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IF (legacy version)IF (legacy versi
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DescriptionZQUIT (legacy command)No
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ZQUIT (legacy command)For example:Z
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$ZBITFIND (legacy function)$ZBITCOU
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ParameterspositionValue or expressi
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esulting bitstring is 1 in all posi
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DescriptionThis page describes the
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$ZUTIL(67,4) (legacy function)• $
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$ZUTIL(67,5) (legacy function)pstat
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$ZUTIL(67,6) (legacy function)$ZUTI
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$ZUTIL(67,7,pid) returns a string c
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Code6064687276808488961041081161401
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$ZUTIL(67,12) (legacy function)$ZUT
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ParameterspidA process ID number. T
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ExamplesThe following is the hexade
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SYS.Process MethodsYou can get the
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See Also$ZUTIL(133) (legacy functio
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or a counter's name or description
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$ZUTIL(133) (legacy function)1. Cal
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