UniBasic Commands Reference - Rocket Software
UniBasic Commands Reference - Rocket Software UniBasic Commands Reference - Rocket Software
Examples The following program segment is taken from the sample program in Appendix A, “Sample Program,” in Developing UniBasic Applications. The variable ENTRY is used to extract the user-requested values from the ORDERS record. 1-278 UniBasic Commands Reference DISPLAY_DATA: * Display the current information in the desired record. This is * determined by the number the user entered (ORDER_NUMBER). ... NUM_ENTRIES = DCOUNT(ORDER.REC,@VM) FOR ENTRY = 1 TO NUM_ENTRIES PRODUCT_NUMBER = ORDER.REC COLOR = ORDER.REC QUANTITY = ORDER.REC PRICE = OCONV(ORDER.REC,"MD2$,") In the following example, the program segment assigns the string Joan to the variable MID. Joan is the second attribute in the dynamic array ARR. The value and subvalue expressions are 0, resulting in the extraction of an attribute. ARR = "#543":@AM:"Joan":@AM:"D’Arc" MID = EXTRACT(ARR,2,0,0) In the next example, the program segment assigns the string Dagny, the second value of the third attribute, to the variable MID: ARRAY = "#143":@AM:"Gustav":@AM:"Mahler":@VM:"Dagny":@VM:"Jens" MID = EXTRACT(ARRAY,3,2) Related Commands UniBasic DEL, INSERT, REMOVE, REPLACE, SUBSTRINGS
FIELD Syntax FIELD(string.expr,delim.expr,field.expr [,rep.expr]) Description The UniBasic FIELD function treats a string as an array, with fields delimited by any specified ASCII character (for example, spaces, commas, or periods), and returns a substring or group of substrings. FIELD supports multibyte languages. Parameters The following table describes each parameter of the syntax. Parameter Description string.expr Specifies the string expression to search. delim.expr Specifies the field delimiter. field.expr Specifies the field at which to begin the search. ,rep.expr Specifies the number of fields to return. If you do not specify rep.expr, or it is less than 1, UniData returns a default of 1 substring. FIELD Parameters Examples In the following example, the program segment assigns the third value (“Guy”) in the array ARR to the array NARRAY: ARR = "#999":@VM:"Charlemagne":@VM:"Guy":@VM:"Pierre" NARRAY = FIELD(ARR,@VM,2,1) FIELD 1-247
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- Page 240 and 241: EDADRV_GetDBInfo Syntax RETCODE EDA
- Page 242 and 243: EDADRV_GetEDAAttr Syntax RETCODE ED
- Page 244 and 245: EDADRV_GetErrmsg Syntax RETCODE EDA
- Page 246 and 247: Input Variables The following table
- Page 248 and 249: EDADRV_LoadSymbols Syntax RETCODE E
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- Page 268 and 269: EQU Syntax EQU constant1 TO value1
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- Page 272 and 273: EXECUTE Syntax EXECUTE "str.expr" [
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- Page 282 and 283: EXP Syntax EXP(expr) Description Th
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- Page 290 and 291: FILEINFO Syntax FILEINFO(file.var,
- Page 292 and 293: Code 9 Merge factor percentage 10 S
- Page 294 and 295: FILELOCK Syntax FILELOCK [file.var]
- Page 296 and 297: FILEUNLOCK Syntax FILEUNLOCK [file.
- Page 298 and 299: FIND Syntax FIND expr IN dyn.array[
- Page 300 and 301: Related Commands UniBasic [], FINDS
- Page 302 and 303: Parameter Description Examples In t
- Page 304 and 305: FMT Syntax FMT(expr, "len [f.char]
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- Page 308 and 309: FOOTING Syntax FOOTING [ON num.expr
- Page 310 and 311: Related Commands UniBasic GETPTR, H
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- Page 316 and 317: FUNCTION Syntax FUNCTION function.n
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- Page 320 and 321: GE Syntax expr1 GE expr2 Synonyms #
- Page 322 and 323: generateKey Syntax generateKey(priv
- Page 324 and 325: Return Code Status 1-286 UniBasic C
- Page 326 and 327: GET Syntax GET[X] var[,length] [SET
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- Page 332 and 333: getHTTPDefault Syntax getHTTPDefaul
FIELD<br />
Syntax<br />
FIELD(string.expr,delim.expr,field.expr [,rep.expr])<br />
Description<br />
The <strong>UniBasic</strong> FIELD function treats a string as an array, with fields delimited by any<br />
specified ASCII character (for example, spaces, commas, or periods), and returns a<br />
substring or group of substrings. FIELD supports multibyte languages.<br />
Parameters<br />
The following table describes each parameter of the syntax.<br />
Parameter Description<br />
string.expr Specifies the string expression to search.<br />
delim.expr Specifies the field delimiter.<br />
field.expr Specifies the field at which to begin the search.<br />
,rep.expr Specifies the number of fields to return. If you do not specify rep.expr, or it<br />
is less than 1, UniData returns a default of 1 substring.<br />
FIELD Parameters<br />
Examples<br />
In the following example, the program segment assigns the third value (“Guy”) in the<br />
array ARR to the array NARRAY:<br />
ARR = "#999":@VM:"Charlemagne":@VM:"Guy":@VM:"Pierre"<br />
NARRAY = FIELD(ARR,@VM,2,1)<br />
FIELD 1-247
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