pyparsing batch file

[Fabian Braennstroem]

Hi,

me again :-)

I would like to parse a small batch file:

file/read-case kepstop.cas
file/read-data keps1500.dat
solve/monitors/residual/plot no
solve/monitors/residual/print yes
/define/boundary-conditions in velocity-inlet 10 0.1 0.1 no 1
it 500
wd keps1500_500.da t
yes
exit

Right now, I use this little example:

from pyparsing import *

input =
open("/home/fab/HOME/Dissertation/CFD/Fluent/Batch/fluent_batch",
'r')
data = input.read()

#------------------------------------------------------------------------
# Define Grammars
#------------------------------------------------------------------------

integer = Word(nums)
hexnums = Word(alphanums)
end = Literal("\n").s uppress()
all = SkipTo(end)
#threadname = dblQuotedString
threadname_read _case = Literal("file/read-case")
threadname_read _data= Literal("file/read-data")
threadname_it = Literal("it")
write_data=Lite ral("wd")
cas_datei= Word(alphanums)
iteration= Word(nums)
write= Word(alphanums)
file_read_data= "file/read-data " + hexnums.setResu ltsName("rd")

logEntry = threadname_read _case.setResult sName("threadna me")
+ cas_datei.setRe sultsName("cas_ datei")+file_re ad_data
logEntry = file_read_data
logEntryNew = threadname_it.s etResultsName(" threadname") +
iteration.setRe sultsName("iter ation")
logEntryWD = write_data.setR esultsName("thr eadname") +
write.setResult sName("write")

#------------------------------------------------------------------------

for tokens in logEntryNew.sea rchString(data) :
Â*Â*Â*Â*print
Â*Â*Â*Â*printÂ* "IterationÂ*Com mand=\tÂ*"+Â*to kens.threadname
Â*Â*Â*Â*printÂ* "NumberÂ*ofÂ*It erations=\tÂ*"+ Â*tokens.iterat ion
Â*Â*Â*Â*forÂ*x *inÂ*tokens.con dition:
Â*Â*Â*Â*Â*Â*Â*p rintÂ*x
Â*Â*Â*Â*printÂ* 50*"-"

for tokens in logEntryWD.sear chString(data):
Â*Â*Â*Â*print
Â*Â*Â*Â*printÂ* "WriteÂ*DataÂ*C ommand=\tÂ*"+Â* tokens.threadna me
Â*Â*Â*Â*printÂ* "DataÂ*FileÂ*Na me=\tÂ*"+Â*toke ns.write
Â*Â*Â*Â*forÂ*x *inÂ*tokens.con dition:
Â*Â*Â*Â*Â*Â*Â*p rintÂ*x
Â*Â*Â*Â*printÂ* 50*"-"

for tokens in logEntry.search String(data):
Â*Â*Â*Â*print
Â*Â*Â*Â*printÂ* "noÂ*idea=\tÂ*" +Â*tokens.threa dname
Â*Â*Â*Â*printÂ* "DataÂ*File=\t *"+Â*tokens. rd
Â*Â*Â*Â*print
Â*Â*Â*Â*forÂ*x *inÂ*tokens.con dition:
Â*Â*Â*Â*Â*Â*Â*p rintÂ*x
Â*Â*Â*Â*printÂ* 50*"-"
Unfortunately, it does not parse the whole file names with
the underscore and I do not know yet, how I can access the
line with 'define/boundary-conditions'. Every 'argument' of
that command should become a separate python variable!?
Does anyone have an idea, how I can achieve this!?
Regards!
Fabian

[Paul McGuire]

On Oct 17, 4:47 pm, Fabian Braennstroem <f.braennstr... @gmx.dewrote:
<snip>

Unfortunately, it does not parse the whole file names with
the underscore and I do not know yet, how I can access the
line with 'define/boundary-conditions'. Every 'argument' of
that command should become a separate python variable!?
Does anyone have an idea, how I can achieve this!?
Regards!
Fabian

You are trying to match "keps1500_500.d at" with the expression
"Word(alphanums )". Since the filename contains characters other than
alphas and numbers, you must add the remaining characters ("." and
"_") to the expression. Try changing:

write= Word(alphanums)

to:

write= Word(alphanums+ "._")
To help you to parse "/define/boundary-conditions in velocity-inlet 10
0.1 0.1 no 1", we would need to know just what these arguments are,
and what values they can take. I'll take a wild guess, and propose
this:

real = Combine(integer + "." + integer)
defineBoundaryC onditions = "/define/boundary-conditions" + \
oneOf("in out inout")("direct ion") + \
Word(alphanums+ "-")("conditionNa me") + \
integer("magnit ude") + \
real("initialX" ) + \
real("initialY" ) + \
oneOf("yes no")("optional" ) + \
integer("normal ")

(Note I am using the new notation for setting results names,
introduced in 1.4.7 - simply follow the expression with ("name"),
instead of having to call .setResultsName .)

And here is a slight modification to your printout routine, using the
dump() method of the ParseResults class:

for tokens in defineBoundaryC onditions.searc hString(data):
print
print "Boundary Conditions = "+ tokens.conditio nName
print tokens.dump()
print
print 50*"-"
prints:

Boundary Conditions = velocity-inlet
['/define/boundary-conditions', 'in', 'velocity-inlet', '10', '0.1',
'0.1', 'no', '1']
- conditionName: velocity-inlet
- direction: in
- initialX: 0.1
- initialY: 0.1
- magnitude: 10
- normal: 1
- optional: no

[Fabian Braennstroem]

Hi Paul,

Paul McGuire wrote:

On Oct 17, 4:47 pm, Fabian Braennstroem <f.braennstr... @gmx.dewrote:
<snip>

>Unfortunatel y, it does not parse the whole file names with
the underscore and I do not know yet, how I can access the
line with 'define/boundary-conditions'. Every 'argument' of
that command should become a separate python variable!?
Does anyone have an idea, how I can achieve this!?
Regards!
Fabian

You are trying to match "keps1500_500.d at" with the expression
"Word(alphanums )". Since the filename contains characters other than
alphas and numbers, you must add the remaining characters ("." and
"_") to the expression. Try changing:

write= Word(alphanums)

to:

write= Word(alphanums+ "._")
To help you to parse "/define/boundary-conditions in velocity-inlet 10
0.1 0.1 no 1", we would need to know just what these arguments are,
and what values they can take. I'll take a wild guess, and propose
this:

real = Combine(integer + "." + integer)
defineBoundaryC onditions = "/define/boundary-conditions" + \
oneOf("in out inout")("direct ion") + \
Word(alphanums+ "-")("conditionNa me") + \
integer("magnit ude") + \
real("initialX" ) + \
real("initialY" ) + \
oneOf("yes no")("optional" ) + \
integer("normal ")

(Note I am using the new notation for setting results names,
introduced in 1.4.7 - simply follow the expression with ("name"),
instead of having to call .setResultsName .)

And here is a slight modification to your printout routine, using the
dump() method of the ParseResults class:

for tokens in defineBoundaryC onditions.searc hString(data):
print
print "Boundary Conditions = "+ tokens.conditio nName
print tokens.dump()
print
print 50*"-"
prints:

Boundary Conditions = velocity-inlet
['/define/boundary-conditions', 'in', 'velocity-inlet', '10', '0.1',
'0.1', 'no', '1']
- conditionName: velocity-inlet
- direction: in
- initialX: 0.1
- initialY: 0.1
- magnitude: 10
- normal: 1
- optional: no

Great! Thanks for the very good explanation!

Regards!
Fabian