Difference between revisions of "AT()"
m (Text replace - "Recital" to "Lianja") |
|||
Line 13: | Line 13: | ||
==Example== | ==Example== | ||
<code lang="recital"> | <code lang="recital"> | ||
− | ? at("is", " | + | ? at("is", "Lianja is good") |
9 | 9 | ||
cString1 = "is" | cString1 = "is" | ||
− | cString2 = " | + | cString2 = "Lianja is good" |
? at(cString1, cString2) | ? at(cString1, cString2) | ||
9 | 9 |
Revision as of 12:27, 7 December 2012
Contents
Purpose
Function to search for a substring
Syntax
AT(<expC1>, <expC2> | <memofield> [,<expN>])
See Also
ATNEXT(), GETWORDCOUNT(), GETWORDNUM(), INLIST(), LEFT(), OCCURS(), RAT(), RIGHT(), SET STRESCAPE, STR(), STREXTRACT(), STRPOS(), STRTRAN(), STUFF(), SUBSTR()
Description
AT() is the substring search function. It returns a number signifying the starting position of <expC1> in <expC2> or in the specified memo field. 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 AT() function will return the starting position of the Nth occurrence of <expC1> when the optional numeric expression <expN> is specified. The AT() function is particularly useful in conjunction with the LEFT() or SUBSTR() functions for locating starting points for extracting text from a string.
Example
? at("is", "Lianja is good") 9 cString1 = "is" cString2 = "Lianja is good" ? at(cString1, cString2) 9