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stringlengths 0
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stringlengths 6
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set hexText to "0" & hexText
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lns3.scpt
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return hexPrefix & hexText
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lns3.scpt
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else -- format list of number
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lns3.scpt
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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
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lns3.scpt
|
set {padText, maxSize} to {"", 16 ^ chunkSize - 1}
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lns3.scpt
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repeat chunkSize times
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lns3.scpt
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set padText to padText & "0"
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lns3.scpt
|
property _list_ : theNumber's items
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lns3.scpt
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repeat with i from 1 to resultList's _list_'s length
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lns3.scpt
|
set theNumber to resultList's _list_'s item i
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lns3.scpt
|
set theInteger to theNumber as integer
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lns3.scpt
|
if theInteger ≠ theNumber as real or theInteger < 0 or theInteger > maxSize then error number -1700
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lns3.scpt
|
if theInteger > maxSize then
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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 & ")."
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lns3.scpt
|
set eText to "Not a non-negative, non-fractional number."
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lns3.scpt
|
_support's throwInvalidParameter(a reference to resultList's _list_'s item i, "", integer, eText)
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lns3.scpt
|
repeat while theInteger > 0
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lns3.scpt
|
set hexText to (item (theInteger mod 16 + 1) of "0123456789ABCDEF") & hexText
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lns3.scpt
|
set theInteger to theInteger div 16
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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)
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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 readable reference constructed using that (e.g. `item 2 of {3, "x"}`)
|
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 tested on all possible values for obvious reasons -- TO DO: shouldn't /10 be done after rounding is applied (in which case following calculations should use mod 10, etc)?
|
lns3.scpt
|
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