Parser fails when `dice_notation.parser.common_DiceParser_parsetab` cannot be created.

[Aarowaim]

This statement can fail when scripts do not have administrative rights to create files in the python script folder.

dice-notation-python/dice_notation/parser/common.py

Lines 61 to 64 in e865553

	yacc.yacc(module=self,
	debug=self.debug,
	debugfile=self.debugfile,
	tabmodule=self.tabmodule)

When it fails, the library emits this warning:

WARNING: Couldn't create 'dice_notation.parser.common_DiceParser_parsetab'. [Errno 13] Permission denied: 'C:\\Program Files (x86)\\Python37-32\\lib\\site-packages\\dice_notation\\parser\\common_DiceParser_parsetab.py'

The program continues running, but DiceParser().parse('d4 + 4').roll() always returns 8, which happens to be the highest value possible. The following is printed, but not raised:

Syntax error at 'd'
Illegal character ' '
Illegal character ' '

Perhaps a fail-fast approach would better suit this situation? After failing to write the parsetab, .roll() is invalidated so exceptions probably should be raised.

[Bernardo-MG]

I'll take a look as soon as I can. Can't know when, as it depends on free time and other projects.

[Aarowaim]

No worries, when you get the chance! I'm in no hurry, I have a solution that meets the project's needs for the time being.

[Bernardo-MG]

I've been playing around with moving to ANTLR 4, seems doable and will keep going with it as time allows.

I'm using the same grammar I prepared for https://github.com/Bernardo-MG/dice-notation-java, and which can be seen at https://github.com/antlr/grammars-v4/tree/master/dice

[Bernardo-MG]

I've just published v1.1.0. Can you try it? As I am a bit rusty with Python this version will surely need some tweaks.