Difference between revisions of "STRPOS()"
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==Purpose== | ==Purpose== | ||
Function to search for a substring | Function to search for a substring | ||
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==Syntax== | ==Syntax== | ||
STRPOS(<expC1>, <expC2> [, <expN>]) | STRPOS(<expC1>, <expC2> [, <expN>]) | ||
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==See Also== | ==See Also== | ||
[[AT()]], [[ATNEXT()]], [[INLIST()]], [[LEFT()]], [[OCCURS()]], [[RAT()]], [[RIGHT()]], [[SET STRESCAPE]], [[STR()]], [[STREXTRACT()]], [[STRTRAN()]], [[STUFF()]], [[SUBSTR()]] | [[AT()]], [[ATNEXT()]], [[INLIST()]], [[LEFT()]], [[OCCURS()]], [[RAT()]], [[RIGHT()]], [[SET STRESCAPE]], [[STR()]], [[STREXTRACT()]], [[STRTRAN()]], [[STUFF()]], [[SUBSTR()]] | ||
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==Description== | ==Description== | ||
STRPOS() is the substring search function. It returns a number signifying the starting position of <expC2> in <expC1>. If the substring is not contained within <expC2> or <memofield>, then the function returns the value 0. The leftmost character of a string is in character position 1. The optional numeric expression <expN> is used to specify an offset position at which to start the search (starting from 1). The return value is based on the start of <expC1> regardless of the offset. The STRPOS() function is particularly useful in conjunction with the LEFT() or SUBSTR() functions for locating starting points for extracting text from a string. | STRPOS() is the substring search function. It returns a number signifying the starting position of <expC2> in <expC1>. If the substring is not contained within <expC2> or <memofield>, then the function returns the value 0. The leftmost character of a string is in character position 1. The optional numeric expression <expN> is used to specify an offset position at which to start the search (starting from 1). The return value is based on the start of <expC1> regardless of the offset. The STRPOS() function is particularly useful in conjunction with the LEFT() or SUBSTR() functions for locating starting points for extracting text from a string. | ||
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==Example== | ==Example== | ||
<code lang="recital"> | <code lang="recital"> | ||
| − | ? | + | ? strpos("Lianja is good","is") |
| − | + | 8 | |
| − | cString1 = "is" | + | cString1 = "Lianja is good" |
| − | cString2 = " | + | cString2 = "is" |
| − | ? | + | ? strpos(cString1, cString2) |
| − | + | 8 | |
</code> | </code> | ||
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==Products== | ==Products== | ||
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[[Category:Documentation]] | [[Category:Documentation]] | ||
[[Category:Functions]] | [[Category:Functions]] | ||
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[[Category:String Data Functions]] | [[Category:String Data Functions]] | ||
Latest revision as of 03:39, 1 July 2019
Purpose
Function to search for a substring
Syntax
STRPOS(<expC1>, <expC2> [, <expN>])
See Also
AT(), ATNEXT(), INLIST(), LEFT(), OCCURS(), RAT(), RIGHT(), SET STRESCAPE, STR(), STREXTRACT(), STRTRAN(), STUFF(), SUBSTR()
Description
STRPOS() is the substring search function. It returns a number signifying the starting position of <expC2> in <expC1>. If the substring is not contained within <expC2> or <memofield>, then the function returns the value 0. The leftmost character of a string is in character position 1. The optional numeric expression <expN> is used to specify an offset position at which to start the search (starting from 1). The return value is based on the start of <expC1> regardless of the offset. The STRPOS() function is particularly useful in conjunction with the LEFT() or SUBSTR() functions for locating starting points for extracting text from a string.
Example
? strpos("Lianja is good","is") 8 cString1 = "Lianja is good" cString2 = "is" ? strpos(cString1, cString2) 8
Products
Lianja Server, Lianja
