Simple DBTEST.py module will not pass grammar test. “sqlite3” wiill not pass basically an {AlphaNumeric}+ specification. I’ve tried
{Letter}{AlphaNumeric}* and others but nothing works. Grammar “compiles” fine with no errors. I can’t see anything wrong with “‘import’ NAME” rule.
Thanks, RR (For Python fans, this is your chance to get pretty clean 3.4.2 grammar module. It is straight from the Tutorial and cleanly converted.)
Python_Grammar_3.4.2.txt (11 KB)
DBTEST.py (721 Bytes)
Right, because I believe the problem isn’t the “import” statement, it’s the comment before it. Do you understand that ! is the comment character in that parser? All lines starting with ! are ignored.
On Feb 21, 2015, at 1:39 PM, RLRandallx <robinlrandall@gmail.com> wrote:
Simple DBTEST.py module will not pass grammar test. "sqlite3" wiill not pass basically an {AlphaNumeric}+ specification. I've tried
{Letter}{AlphaNumeric}* and others but nothing works. Grammar "compiles" fine with no errors. I can't see anything wrong with "'import' NAME" rule.
—
Tim Roberts, timr@probo.com
Providenza & Boekelheide, Inc.
Hi Tim,
I do understand the use of “!” but I thought I could intersperse lines anywhere in
the grammar.
THE SOURCE HAS::
“”"
import sqlite3
“”"
AND THE GRAMMAR HAS:
:
<raise_stmt> ::= ‘raise’ | ‘raise’ | ‘raise’ ‘from’
<import_stmt> ::= <import_name> | <import_from> | ‘import’ <import_as_name>
<import_name> ::= ‘import’ <dotted_as_names> | ‘import’ <name_list>
! note below ::= the (‘.’ | ‘…’) is necessary because ‘…’ is tokenized as ELLIPSIS
<import_from> ::= ‘from’ ‘.’ | ‘…’ <dotted_name> | ‘.’ | ‘…’ ‘import’ ‘*’ | ‘(’ <name_list> ‘)’ | <name_list> | <dotted_as_names>
<import_as_name> ::= NAME ‘as’ NAME
NAME
<dotted_as_name> ::= <dotted_name> ‘as’ NAME
<dotted_as_names> ::= <dotted_as_name> | <dotted_as_name> ‘,’ <dotted_as_names>
<dotted_name> ::= NAME ‘.’ <dotted_name>
NAME ‘.’ NAME
<name_list> ::= NAME ‘,’ NAME | <name_list> ‘,’ NAME
:
“”"
Are you saying the “!note below” line is causing a problem? On my screen it shows up green but the line below shows blue
When I step through the source, it stops right after “import”.
I will remove the comment and see if it works. That would imply
that there is a bug somewhere in ignoring comments.
Thanks,
Robin
On Sun, Feb 22, 2015 at 10:14 PM, Tim Roberts timr@probo.com wrote:
On Feb 21, 2015, at 1:39 PM, RLRandallx robinlrandall@gmail.com wrote:
Simple DBTEST.py module will not pass grammar test. “sqlite3” wiill not pass basically an {AlphaNumeric}+ specification. I’ve tried
{Letter}{AlphaNumeric}* and others but nothing works. Grammar “compiles” fine with no errors. I can’t see anything wrong with “‘import’ NAME” rule.
Right, because I believe the problem isn’t the “import” statement, it’s the comment before it. Do you understand that ! is the comment character in that parser? All lines starting with ! are ignored.
—
Tim Roberts, timr@probo.com
Providenza & Boekelheide, Inc.
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Hi Tim,
I removed the “!note below” comment and it still fails on “sqlite3” token.
I am using the 5.2 version. You should be able to reproduce the results
with the two files I included.
Thanks,
Robin
On Sun, Feb 22, 2015 at 10:14 PM, Tim Roberts timr@probo.com wrote:
On Feb 21, 2015, at 1:39 PM, RLRandallx robinlrandall@gmail.com wrote:
Simple DBTEST.py module will not pass grammar test. “sqlite3” wiill not pass basically an {AlphaNumeric}+ specification. I’ve tried
{Letter}{AlphaNumeric}* and others but nothing works. Grammar “compiles” fine with no errors. I can’t see anything wrong with “‘import’ NAME” rule.
Right, because I believe the problem isn’t the “import” statement, it’s the comment before it. Do you understand that ! is the comment character in that parser? All lines starting with ! are ignored.
—
Tim Roberts, timr@probo.com
Providenza & Boekelheide, Inc.
–
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Phone: 650-948-8037
Email: RobinLRandall@gmail.com
Mountain View, CA 94041
Robin Randall wrote:
Hi Tim,
I do understand the use of "!" but I thought I could intersperse lines
anywhere in
the grammar.
Well, yes, but for example you have this:
Comment Line = '#'
!
Whitespace = {WS}+
! | '#'{Printable}*
I think you were trying to say that that "# followed by printable
characters" represents whitespace, but that's not what this does. That
whole fourth line is completely ignored. It's a comment.
There are number of lines in your file that seem important but that are
commented out.
--
Tim Roberts, timr@probo.com
Providenza & Boekelheide, Inc.
Got it.
Robin
On Mon, Feb 23, 2015 at 2:49 PM, Tim Roberts timr@probo.com wrote:
Robin Randall wrote:
Hi Tim,
I do understand the use of “!” but I thought I could intersperse lines
anywhere in
the grammar.
Well, yes, but for example you have this:
Comment Line = ‘#’
!
Whitespace = {WS}+
! | ‘#’{Printable}*
I think you were trying to say that that "# followed by printable
characters" represents whitespace, but that’s not what this does. That
whole fourth line is completely ignored. It’s a comment.
There are number of lines in your file that seem important but that are
commented out.
–
Tim Roberts, timr@probo.com
Providenza & Boekelheide, Inc.
–
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Mountain View, CA 94041
Hi Tim,
I got rid of all grammar lines with ‘#’. Only below remains.
Comment Line = ‘#’
But it still fails at the ‘import’ line. Are you still convinced the problem is with the comment
or the way I get past blank lines? Until I found that was my problem. I feel there
should be a defined way to pass by “{Whitespace}*{NewLine}” types of lines.Something like:
Blank Line = {WS}*{NewLine} (where {WS} = {Whitespace} - {CR} - {LF} )
is similar to “Comment Line” and would do the trick.
Thanks for your help,
Robin
On Sun, Feb 22, 2015 at 10:14 PM, Tim Roberts timr@probo.com wrote:
On Feb 21, 2015, at 1:39 PM, RLRandallx robinlrandall@gmail.com wrote:
Simple DBTEST.py module will not pass grammar test. “sqlite3” wiill not pass basically an {AlphaNumeric}+ specification. I’ve tried
{Letter}{AlphaNumeric}* and others but nothing works. Grammar “compiles” fine with no errors. I can’t see anything wrong with “‘import’ NAME” rule.
Right, because I believe the problem isn’t the “import” statement, it’s the comment before it. Do you understand that ! is the comment character in that parser? All lines starting with ! are ignored.
—
Tim Roberts, timr@probo.com
Providenza & Boekelheide, Inc.
–
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Phone: 650-948-8037
Email: RobinLRandall@gmail.com
Mountain View, CA 94041
Robin Randall wrote:
I got rid of all grammar lines with '#'. Only below remains.
Comment Line = '#'
But it still fails at the 'import' line. Are you still convinced the
problem is with the comment
or the way I get past blank lines?
No, I'm not convinced, because I don't know the GOLDParser product at
all. I just saw something that looked unusual.
I AM convinced that this is a GOLDParser problem, not a wxPython
problem. You would have much better luck asking on the GOLDParser forums.
--
Tim Roberts, timr@probo.com
Providenza & Boekelheide, Inc.
Thanks, I’ll do that.
Robin
On Tue, Feb 24, 2015 at 9:39 AM, Tim Roberts timr@probo.com wrote:
Robin Randall wrote:
I got rid of all grammar lines with ‘#’. Only below remains.
Comment Line = ‘#’
But it still fails at the ‘import’ line. Are you still convinced the
problem is with the comment
or the way I get past blank lines?
No, I’m not convinced, because I don’t know the GOLDParser product at
all. I just saw something that looked unusual.
I AM convinced that this is a GOLDParser problem, not a wxPython
problem. You would have much better luck asking on the GOLDParser forums.
–
Tim Roberts, timr@probo.com
Providenza & Boekelheide, Inc.
–
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Phone: 650-948-8037
Email: RobinLRandall@gmail.com
Mountain View, CA 94041