[Glass] '7.3470570000000004E+02' asNumber -> 7.3470570000000004E+00

[stupid gmail] ... in addition to the response below, I've submitted a bug report[1] on this issue.

Dale

[1] https://github.com/glassdb/glass/issues/20

---------- Forwarded message ----------
From: Dale Henrichs <[hidden email]>
Date: Fri, May 2, 2014 at 3:42 PM
Subject: Re: [Glass] '7.3470570000000004E+02' asNumber -> 7.3470570000000004E+00
To: Mariano Martinez Peck <[hidden email]>

Not that this is a solution, but in pharo, you get the same answer as GemStone (i.e., the exponent is ignored).... #asNumber is based on a port of SqNumberParser, so that "makes sense."

This form of the printString produces the expected answer:

  '7.3470570000000004e02' asNumber.

Note the lower case $e and absence of $+ ...

With that said, I know that GemStone prints it's floats with a plus sign in the exponent and this is a bug that has been fixed in 3.2 ...

SqNumberParser>>exponentLetters controls the list of exponents expected and could be modified to include capital letters ...

The class ExtendedNumberParser will parse numbers with $+ in the exponent so overriding SqNumberParser class>>on: to directly use ExtendedNumberParser ... allows asNumber to accept $+ ,,,

so a patch to SqNumberParser>>exponentLetters and the SqNumber class-side methods would probably get you past this hump...

Dale

On Fri, May 2, 2014 at 3:18 PM, Mariano Martinez Peck <[hidden email]> wrote:

Terrible WTF or I am too tired?  note the +02 and the +00 ...

thanks!

--
Mariano
http://marianopeck.wordpress.com

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Thank you very much guys. Tomorrow I send a detailed thanks but just to confirm that implementing:

SqNumberParser class >> on: aStringOrStream

^ExtendedNumberParser new on: aStringOrStream

SqNumberParser >> exponentLetters

"answer the list of possible exponents for Numbers.

Note: this parser will not honour precision attached to the exponent.

different exponent do not lead to different precisions.

only IEEE 754 floating point numbers will be created"

^'edqEDQ'

Does solve the problem. I could now import my sixx data.

Thanks!!!

On Fri, May 2, 2014 at 7:48 PM, Dale Henrichs <[hidden email]> wrote:

[stupid gmail] ... in addition to the response below, I've submitted a bug report[1] on this issue.

Dale

[1] https://github.com/glassdb/glass/issues/20

---------- Forwarded message ----------
From: Dale Henrichs <[hidden email]>
Date: Fri, May 2, 2014 at 3:42 PM
Subject: Re: [Glass] '7.3470570000000004E+02' asNumber -> 7.3470570000000004E+00
To: Mariano Martinez Peck <[hidden email]>

Not that this is a solution, but in pharo, you get the same answer as GemStone (i.e., the exponent is ignored).... #asNumber is based on a port of SqNumberParser, so that "makes sense."

This form of the printString produces the expected answer:

  '7.3470570000000004e02' asNumber.

Note the lower case $e and absence of $+ ...

With that said, I know that GemStone prints it's floats with a plus sign in the exponent and this is a bug that has been fixed in 3.2 ...

SqNumberParser>>exponentLetters controls the list of exponents expected and could be modified to include capital letters ...

The class ExtendedNumberParser will parse numbers with $+ in the exponent so overriding SqNumberParser class>>on: to directly use ExtendedNumberParser ... allows asNumber to accept $+ ,,,

so a patch to SqNumberParser>>exponentLetters and the SqNumber class-side methods would probably get you past this hump...

Dale

On Fri, May 2, 2014 at 3:18 PM, Mariano Martinez Peck <[hidden email]> wrote:

Terrible WTF or I am too tired?  note the +02 and the +00 ...

thanks!

--
Mariano
http://marianopeck.wordpress.com

_______________________________________________
Glass mailing list
[hidden email]
http://lists.gemtalksystems.com/mailman/listinfo/glass

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Glass mailing list
[hidden email]
http://lists.gemtalksystems.com/mailman/listinfo/glass

--
Mariano
http://marianopeck.wordpress.com