text stringlengths 0 15.7k | source stringlengths 6 112 |
|---|---|
set hexText to "0" & hexText | lns3.scpt |
return hexPrefix & hexText | lns3.scpt |
else -- format list of number | lns3.scpt |
if chunkSize < 1 or chunkSize > 1024 then _support's throwInvalidParameter(chunkSize, "width", integer, "Must be an integer between 1 and 1024.") -- chunksize must be given | lns3.scpt |
set {padText, maxSize} to {"", 16 ^ chunkSize - 1} | lns3.scpt |
repeat chunkSize times | lns3.scpt |
set padText to padText & "0" | lns3.scpt |
property _list_ : theNumber's items | lns3.scpt |
repeat with i from 1 to resultList's _list_'s length | lns3.scpt |
set theNumber to resultList's _list_'s item i | lns3.scpt |
set theInteger to theNumber as integer | lns3.scpt |
if theInteger ≠ theNumber as real or theInteger < 0 or theInteger > maxSize then error number -1700 | lns3.scpt |
if theInteger > maxSize then | lns3.scpt |
set eText to "Number is too large to represent as " & chunkSize & "-digit hexadecimal text (not between 0 and " & (16 ^ chunkSize - 1) div 1 & ")." | lns3.scpt |
set eText to "Not a non-negative, non-fractional number." | lns3.scpt |
_support's throwInvalidParameter(a reference to resultList's _list_'s item i, "", integer, eText) | lns3.scpt |
repeat while theInteger > 0 | lns3.scpt |
set hexText to (item (theInteger mod 16 + 1) of "0123456789ABCDEF") & hexText | lns3.scpt |
set theInteger to theInteger div 16 | lns3.scpt |
set resultList's _list_'s item i to (padText & hexText)'s text -chunkSize thru -1 | lns3.scpt |
if hasPrefix then | lns3.scpt |
set hexText to "0x" & resultList's _list_ | lns3.scpt |
set hexText to resultList's _list_ as text | lns3.scpt |
return hexText | lns3.scpt |
_error("format hex", eText, eNumber, eFrom, eTo) | lns3.scpt |
end format hex | lns3.scpt |
to parse hex hexText width chunkSize : (0) precision loss isPrecise : (false) | lns3.scpt |
set hexText to _support's asTextParameter(hexText, "") | lns3.scpt |
set isPrecise to not _support's asBooleanParameter(isPrecise, "precision loss") | lns3.scpt |
if chunkSize = 0 then -- read as single number | lns3.scpt |
set theNumber to 0 | lns3.scpt |
set isNegative to hexText starts with "-" | lns3.scpt |
if isNegative then set hexText to text 2 thru -1 of hexText | lns3.scpt |
if hexText starts with "0x" then set hexText to text 3 thru -1 of hexText | lns3.scpt |
repeat with charRef in hexText | lns3.scpt |
set theNumber to theNumber * 16 | lns3.scpt |
set i to offset of charRef in "0123456789ABCDEF" | lns3.scpt |
if i = 0 then error number -1728 | lns3.scpt |
set theNumber to theNumber + i - 1 | lns3.scpt |
on error number -1728 -- catch errors if hexText is too short or contains non-hex chars | lns3.scpt |
_support's throwInvalidParameter(hexText, "", text, "Text is not a valid hexadecimal number.") | lns3.scpt |
if isPrecise and (theNumber = theNumber + 1) then _support's throwInvalidParameter(hexText, "", text, "Hexadecimal text is too large to represent as a real number without losing precision.") | lns3.scpt |
if isNegative then set theNumber to -theNumber | lns3.scpt |
else -- read as list of numbers | lns3.scpt |
if (hexText's length) mod chunkSize ≠ 0 then _support's throwInvalidParameter(hexText, "", text, "Can't split hexadecimal text exactly into " & chunkSize & "-digit chunks.") | lns3.scpt |
repeat with i from 1 to hexText's length by chunkSize | lns3.scpt |
repeat with charRef in hexText's text i thru (i + chunkSize - 1) | lns3.scpt |
if i = 0 then _support's throwInvalidParameter(hexText, "", text, "Text is not a valid hexadecimal number.") | lns3.scpt |
if isPrecise and (theNumber = theNumber + 1) then _support's throwInvalidParameter(a reference to text i thru (i + chunkSize - 1) of hexText, "", text, "Hexadecimal text is too large to convert to number without losing precision.") | lns3.scpt |
set end of resultList's _list_ to theNumber | lns3.scpt |
return resultList's _list_ | lns3.scpt |
_error("parse hex", eText, eNumber, eFrom, eTo) | lns3.scpt |
end parse hex | lns3.scpt |
to deg2rad x | lns3.scpt |
return (x as real) * (pi / 180) | lns3.scpt |
_error("radians", eText, eNumber, eFrom, eTo) | lns3.scpt |
end deg2rad | lns3.scpt |
to rad2deg x | lns3.scpt |
return (x as real) / (pi / 180) | lns3.scpt |
_error("degrees", eText, eNumber, eFrom, eTo) | lns3.scpt |
end rad2deg | lns3.scpt |
to abs x | lns3.scpt |
set x to x as number | lns3.scpt |
return -x | lns3.scpt |
_error("abs", eText, eNumber, eFrom, eTo) | lns3.scpt |
to cmp {n1, n2} | lns3.scpt |
if (count {n1, n2} each integer) = 2 then | lns3.scpt |
if n1 = n2 then return 0 | lns3.scpt |
set {n1, n2} to {n1 as real, n2 as real} | lns3.scpt |
set dn to _isEqualDelta * n2 | lns3.scpt |
set dn to _isEqualDelta * n1 | lns3.scpt |
set dm to -dn | lns3.scpt |
if dm > dn then set {dn, dm} to {dm, dn} | lns3.scpt |
if d > dm and d < dn then return 0 | lns3.scpt |
if n1 < n2 then | lns3.scpt |
return -1 | lns3.scpt |
return 1 | lns3.scpt |
_error("cmp", eText, eNumber, eFrom, eTo) | lns3.scpt |
end cmp | lns3.scpt |
to min theList | lns3.scpt |
property _list_ : _support's asListParameter(theList, "") | lns3.scpt |
if listObject's _list_'s length = 0 then _support's throwInvalidParameter(theList, "", list, "List can’t be empty.") | lns3.scpt |
set theResult to (item 1 of listObject's _list_) as number | lns3.scpt |
repeat with i from 1 to listObject's _list_'s length | lns3.scpt |
set n to listObject's _list_'s item i as number | lns3.scpt |
if n < theResult then set theResult to n | lns3.scpt |
on error eText number -1700 -- couldn't coerce an item to number | lns3.scpt |
_support's throwInvalidParameter(a reference to item i of theList, "", number, "List item is wrong type: " & eText) -- note: AS doesn't provide a meaningful reference when `repeat with aRef in listObject's _list_` is used (e.g. `item 2 of _list_`), so to provide useful error messages a counting loop is used and a read... | lns3.scpt |
_error("min", eText, eNumber, eFrom, eTo) | lns3.scpt |
to max theList | lns3.scpt |
if n > theResult then set theResult to n | lns3.scpt |
on error eText number -1700 | lns3.scpt |
_support's throwInvalidParameter(a reference to item i of theList, "", number, "List item is wrong type: " & eText) | lns3.scpt |
_error("max", eText, eNumber, eFrom, eTo) | lns3.scpt |
to round number num to places decimalPlaces : (0) by roundingDirection : (rounding halves to even) | lns3.scpt |
set num to _support's asRealParameter(num, "") | lns3.scpt |
set decimalPlaces to _support's asIntegerParameter(decimalPlaces, "to places") | lns3.scpt |
if decimalPlaces ≠ 0 then | lns3.scpt |
set theMultiplier to 10 ^ decimalPlaces | lns3.scpt |
set num to num * 100 * theMultiplier -- multiplying and dividing by 100 before and after applying the multiplier helps avoid poor rounding results for some numbers due to inevitable loss of precision in floating-point math (e.g. `324.21 * 100 div 1 / 100` returns 324.2 but needs to be 324.21), though this hasn't been t... | lns3.scpt |
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