Difference between revisions of "Str.cnt"
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m (Created page with "== Calling Pattern == Call local r[,c...] = sl.str.cnt(s1,s2[,bsimple[,bpos]]) Args s1 is a string s2 is a string bsimple (optional) is a boolean or nil bpos (optional) is o...") |
(No difference)
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Revision as of 15:53, 11 November 2010
Calling Pattern
Call
local r[,c...] = sl.str.cnt(s1,s2[,bsimple[,bpos]])
Args
s1 is a string s2 is a string bsimple (optional) is a boolean or nil bpos (optional) is of any type
Results
r is a string c0...cN are numbers
Usage Example
local s = sl.str local i = 'This is a test' local j = 'is' local r,c1,c2 = s.cnt(i,j,true,true) print(r..' '..c1..' '..c2)
--> 2 3 6
Description
Counts the number of occurrences of string s2 in string s1 and optionally returns the positions as well. If argument bsimple is left unspecified, or is specified as true, then pattern matching is disabled and a plain search is undertaken. If bsimple is specified as false, then pattern matching will be performed. If bpos is specified as true, then the positions of the substring in string s1 will also be returned following the occurrence count.
Upon Error
Cnt fails silently. If s1 or s2 aren't strings, then 0 (zero) is returned.