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Opened 3 years ago

Last modified 13 months ago

#3232 assigned Bug

Issue when parsing scientific notation literals

Reported by: jchd18 Owned by: Jon
Milestone: Component: AutoIt
Version: 3.3.14.0 Severity: None
Keywords: Cc:

Description (last modified by jchd18)

The runtime parser sometimes fails on reals in scientific notation immediately followed by some operators or silently gives a wrong result in some cases.

$x = 1e2 + 10
ConsoleWrite($x & @CRLF)	; 110 OK
$x = (1e2)+10
ConsoleWrite($x & @CRLF)	; 110 OK

$x = 1e2+10
ConsoleWrite($x & @CRLF)	; 100 Wrong!
$x = 1e2-10
ConsoleWrite($x & @CRLF)	; 100 Wrong!
$x = 1e2^10
ConsoleWrite($x & @CRLF)	; 1e+020 Wrong!
$x = 1e2+ 10			; Unable to parse line.
ConsoleWrite($x & @CRLF)
$x = 1e2- 10			; Unable to parse line.
ConsoleWrite($x & @CRLF)
$x = 1e2^ 10			; 1e+020 Wrong!
ConsoleWrite($x & @CRLF)

+, - and ̂ are the only arithmetic operators affected: * and / seem to work correctly. (It was fun composing the exponentiation sign here!)

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Change History (4)

comment:1 Changed 3 years ago by anonymous

If I run Tidy on those lines, I get the correct results.

comment:2 Changed 3 years ago by jchd18

That's obvious, since tidying the code inserts whitespace between literals and operators, when needed, for readability. The bug remains that untidied code isn't parsed correctly or gives wrong results.

comment:3 Changed 3 years ago by jchd18

  • Description modified (diff)

comment:4 Changed 13 months ago by Jpm

  • Owner set to Jon
  • Status changed from new to assigned

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