////////// // // Function: ISNULL() // Determines whether an expression evaluates to null. // ////// // Version 0.58 // Last update: // Apr.22.2015 ////// // Change log: // Apr.06.2015 - Initial creation by Hernan Cano M ////// // Parameters: // p1 -- Specifies the expression that ISNULL() evaluates. // ////// // Returns: // ISNULL() returns True (.T.) if the expression eExpression evaluates to null; // otherwise, ISNULL() returns False (.F.) ////// // Example: // ? ISNULL("AA") && Display .F. // ? ISNULL(" ") && Display .F. // ? ISNULL(0.0) && Display .F. // ? ISNULL(.null.) && Display .T. ////// void function_isnull(SReturnsParams* rpar) { SVariable* varExpr = rpar->ip[0]; bool llIsNull; ////////// // Verify the variable is of a valid format ////// rpar->rp[0] = NULL; if (!iVariable_isValidType(varExpr)) { iError_report_byNumber(_ERROR_PARAMETER_IS_INCORRECT, iVariable_get_relatedComp(varExpr), false); return; } ////////// // Create and populate the return variable ////// llIsNull = ifunction_isnull_common(varExpr); rpar->rp[0] = iVariable_createAndPopulate_byText(_VAR_TYPE_LOGICAL, iVariable_populate_byBool(llIsNull), 1, true); if (!rpar->rp[0]) iError_report_byNumber(_ERROR_INTERNAL_ERROR, iVariable_get_relatedComp(varExpr), false); }
////////// // // Function: EMPTY() // Determines whether an expression evaluates to empty. // ////// // Version 0.58 // Last update: // Mar.20.2015 ////// // Change log: // Mar.20.2015 - Refactoring by Stefano D'Amico // Mar.19.2015 - Refactoring by Rick C. Hodgin // Mar.19.2015 - Initial creation by Stefano D'Amico ////// // Parameters: // p1 -- Specifies the expression that EMPTY( ) evaluates. // ////// // Returns: // EMPTY( ) returns True (.T.) if the expression eExpression evaluates to empty; // otherwise, EMPTY( ) returns False (.F.) ////// // Example: // ? EMPTY("AA") && Display .F. // ? EMPTY(" ") && Display .T. // ? EMPTY(0.0) && Display .T. ////// void function_empty(SReturnsParams* rpar) { SVariable* varExpr = rpar->ip[0]; bool llEmpty; SVariable* result; ////////// // Verify the expression is correct ////// rpar->rp[0] = NULL; if (!iVariable_isValid(varExpr)) { iError_report_byNumber(_ERROR_PARAMETER_IS_INCORRECT, iVariable_get_relatedComp(varExpr), false); return; } ////////// // Create and populate the return variable ////// llEmpty = function_isempty_common(rpar, varExpr); result = iVariable_createAndPopulate_byText(_VAR_TYPE_LOGICAL, iVariable_populate_byBool(llEmpty), 1, false); if (!result) iError_report_byNumber(_ERROR_INTERNAL_ERROR, iVariable_get_relatedComp(varExpr), false); ////////// // Signify our result ////// rpar->rp[0] = result; }
////////// // // Function: ISUPPER() // Determines whether the first character in a character expression is an uppercase alphabetic character. // ////// // Version 0.58 // Last update: // Sep.15.2015 ////// // Change log: // Sep.15.2015 - Initial creation by Stefano D'Amico ////// // Parameters: // p1 -- Specifies the character expression that ISUPPER( ) evaluates. // p2 -- Optional, if true evaluates all string // ////// // Returns: // ISUPPER( ) returns true (.T.) if the first character in a character expression is an uppercase alphabetic character; // otherwise, ISUPPER( ) returns false (.F.). ////// // Example: // ? ISUPPER("Aa") && Display .T. // ? ISUPPER("Aa") && Display .T. // ? ISUPPER("Aa", .T.) && Display .F. // ? ISUPPER("AA", .T.) && Display .T. ////// void function_isupper(SReturnsParams* rpar) { SVariable* varStr = rpar->ip[0]; SVariable* varTestWholeString = rpar->ip[1]; bool llTestWholeString, llIsUpper; bool error; u32 errorNum; ////////// // Parameters 1 must be present and character ////// rpar->rp[0] = NULL; if (!iVariable_isValid(varStr) || !iVariable_isTypeCharacter(varStr)) { iError_report_byNumber(_ERROR_P1_IS_INCORRECT, iVariable_get_relatedComp(varStr), false); return; } ////////// // If present, parameter 2 must be bool ////// if (varTestWholeString) { if (!iVariable_isFundamentalTypeLogical(varTestWholeString)) { iError_report_byNumber(_ERROR_P2_IS_INCORRECT, iVariable_get_relatedComp(varTestWholeString), false); return; } // Grab the value llTestWholeString = iiVariable_getAs_bool(varTestWholeString, false, &error, &errorNum); if (error) { iError_report_byNumber(errorNum, iVariable_get_relatedComp(varTestWholeString), false); return; } } else { // Just testing the first character llTestWholeString = false; } ////////// // Create and populate the return variable ////// llIsUpper = ifunction_iscommon(varStr, llTestWholeString, _isUpper); rpar->rp[0] = iVariable_createAndPopulate_byText(_VAR_TYPE_LOGICAL, iVariable_populate_byBool(llIsUpper), 1, true); if (!rpar->rp[0]) iError_report_byNumber(_ERROR_INTERNAL_ERROR, iVariable_get_relatedComp(varStr), false); }
////////// // // Function: _VJRSYS() // Internal function. Not published. Used to access VJr system variables. // ////// // Version 0.58 // Last update: // Oct.28.2015 ////// // Change log: // Oct.28.2015 - Initial creation by Rick C. Hodgin ////// // Parameters: // varIndex -- Index function to access the variable // ////// // Returns: // Varies -- Based on index, returns the VJr system variable ////// void function__vjrsys(SReturnsParams* rpar) { SVariable* varIndex = rpar->ip[0]; s32 lnIndex; u32 errorNum; bool error; ////////// // Parameter 1 must be valid and numeric ////// rpar->rp[0] = NULL; if (!iVariable_isValid(varIndex) || !iVariable_isTypeNumeric(varIndex)) { iError_report_byNumber(_ERROR_P1_IS_INCORRECT, iVariable_get_relatedComp(varIndex), false); return; } // Grab the index value lnIndex = iiVariable_getAs_s32(varIndex, false, &error, &errorNum); if (error) { iError_report_byNumber(errorNum, iVariable_get_relatedComp(varIndex), false); return; } ////////// // Dispatch based on operation ////// switch (lnIndex) { case 1: rpar->rp[0] = iVariable_createAndPopulate_byText(_VAR_TYPE_LOGICAL, iVariable_populate_byBool(glShuttingDown), 1, false); break; default: iError_report_byNumber(_ERROR_FEATURE_NOT_AVAILABLE, iVariable_get_relatedComp(varIndex), false); break; } }
////////// // // Function: INLIST() // A test if the value is in the list. // ////// // Version 0.58 // Last update: // Mar.22.2015 ////// // Change log: // Mar.22.2015 - Initial creation ////// // Parameters: // varValue -- The value to compare // varList1 -- A value in the list // varList2 -- A value in the list // .. // varList9 -- A value in the list // ////// // Returns: // Logical -- .t. if the item is found in the list, .f. otherwise ////// void function_inlist(SReturnsParams* rpar) { SVariable* varValue = rpar->ip[0]; SVariable* varList1 = rpar->ip[1]; bool llResult; s32 lnI, lnType; SVariable* result; u32 errorNum; bool error; ////////// // Parameters 1 and 2 must be present, and of equal types ////// rpar->rp[0] = NULL; if (!iVariable_isValid(varValue)) { iError_report_byNumber(_ERROR_MISSING_PARAMETER, iVariable_get_relatedComp(varValue), false); return; } if (!iVariable_isValid(varList1)) { iError_report_byNumber(_ERROR_MISSING_PARAMETER, iVariable_get_relatedComp(varList1), false); return; } ////////// // Each type must be fundamentally the same type ////// for (lnI = 1, lnType = iVariable_get_fundamentalType(varValue); lnI < (s32)_MAX_PARAMS_COUNT && rpar->ip[lnI]; lnI++) { ////////// // Make sure this variable type matches the test value ////// if (iVariable_get_fundamentalType(rpar->ip[lnI]) != lnType) { // The types do not match iError_report_byNumber(_ERROR_DATA_TYPE_MISMATCH, iVariable_get_relatedComp(rpar->ip[lnI]), false); return; } } ////////// // Iterate through to see if the parameters are equal ////// for (lnI = 1, llResult = false; lnI < (s32)_MAX_PARAMS_COUNT && rpar->ip[lnI]; lnI++) { ////////// // Compare the value with each list item ////// if (iVariable_compare(varValue, rpar->ip[lnI], false, &error, &errorNum) == 0 && !error) { // We found a match llResult = true; break; } ////////// // Report on errors ////// if (error) { iError_report_byNumber(errorNum, iVariable_get_relatedComp(rpar->ip[lnI]), false); return; } } ////////// // Based on the result, create the return(result) ////// result = iVariable_createAndPopulate_byText(_VAR_TYPE_LOGICAL, iVariable_populate_byBool(llResult), 1, false); if (!result) iError_report_byNumber(_ERROR_INTERNAL_ERROR, iVariable_get_relatedComp(varValue), false); ////////// // Indicate our result ////// rpar->rp[0] = result; }