71 lines
1.9 KiB
Lua
71 lines
1.9 KiB
Lua
print( string.find( 'alo alx 123 b\0o b\0o', '(..*) %1' ) )
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print( string.find( 'aloALO', '%l*' ) )
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print( string.find( ' \n isto <20> assim', '%S%S*' ) )
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print( string.find( "", "" ) )
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print( string.find( "ababaabbaba", "abb" ) )
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print( string.find( "ababaabbaba", "abb", 7 ) )
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print( string.match( "aabaa", "a*" ) )
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print( string.match( "aabaa", "a*", 3 ) )
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print( string.match( "aabaa", "a*b" ) )
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print( string.match( "aabaa", "a*b", 3 ) )
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print( string.match( "abbaaababaabaaabaa", "b(a*)b" ) )
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print( string.match( "abbaaababaabaaabaa", "b(a*)()b" ) )
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print( string.match( "abbaaababaabaaabaa", "b(a*)()b", 3 ) )
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print( string.match( "abbaaababaabaaabaa", "b(a*)()b", 8 ) )
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print( string.match( "abbaaababaabaaabaa", "b(a*)()b", 12 ) )
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print( string.byte("hi", -3) )
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print( tostring(1234567890123) )
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print( tostring(1234567890124) )
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print( tostring(1234567890125) )
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function f1(s, p)
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print(p)
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p = string.gsub(p, "%%([0-9])", function (s) return "%" .. (s+1) end)
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print(p)
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p = string.gsub(p, "^(^?)", "%1()", 1)
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print(p)
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p = string.gsub(p, "($?)$", "()%1", 1)
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print(p)
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local t = {string.match(s, p)}
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return string.sub(s, t[1], t[#t] - 1)
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end
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print( f1('alo alx 123 b\0o b\0o', '(..*) %1') )
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local function badpat()
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print( string.gsub( "alo", "(.)", "%2" ) )
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end
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print( pcall( badpat ) )
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for k, v in string.gmatch("w=200&h=150", "(%w+)=(%w+)") do
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print(k, v)
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end
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-- string.sub
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function t(str)
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local i = { 0, 1, 2, 8, -1 }
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for ki,vi in ipairs(i) do
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local s,v = pcall( string.sub, str, vi )
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print( 'string.sub("'..str..'",'..tostring(vi)..')='..tostring(s)..',"'..tostring(v)..'"' )
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local j = { 0, 1, 2, 4, 8, -1 }
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for kj,vj in ipairs(j) do
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local s,v = pcall( string.sub, str, vi, vj )
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print( 'string.sub("'..str..'",'..tostring(vi)..','..tostring(vj)..')='..tostring(s)..',"'..tostring(v)..'"' )
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end
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end
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end
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t( 'abcdefghijklmn' )
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t( 'abcdefg' )
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t( 'abcd' )
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t( 'abc' )
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t( 'ab' )
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t( 'a' )
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t( '' )
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