[stringtemplate-interest] Replacing double quotes by single quotes in output strings?

[Thierry Coq]

OK. I'll do that. This means I'll have to recompile ANTLR, this will 
take some time as I'm not familiar with this particular operation.

Thanks,

Thierry
Terence Parr wrote:
> either you need a renderer or modify the objcts going into the template so toString flips the " and '.
> T
> On Dec 17, 2009, at 9:27 AM, Thierry Coq wrote:
>
>   
>> Hello Jim,
>>
>> thanks for your interest.
>>
>> Yes I'm using ANTLR to generate a Pascal Parser and Lexer, and I'm using 
>> a small expression calculator grammar as an example. In order to do that 
>> I need to write another set of ST rules to change the target language.
>>
>> the grammar start like this: (Expr.g)
>> grammar Expr;
>> options {language=Lazarus;}
>> ...
>> //the rest of the grammar is like existing grammars in ANTLR.
>>
>> The resulting code is like this (for the tokens table):
>> TOKENS_NAMES: array[0..TOKEN_COUNT] of String = (
>> "<invalid>",
>> "<EOR>",
>> "<DOWN>",
>> "<UP>",
>> "WS",
>> //..
>> "'+'",
>> //..
>> );
>>
>> This doesn't work in Pascal. I'm trying to get:
>> TOKENS_NAMES: array[0..TOKEN_COUNT] of String = (
>> '<invalid>',
>> '<EOR>',
>> '<DOWN>',
>> '<UP>',
>> 'WS",
>> //..
>> '''+''',
>> //..
>> );
>>
>> The rule I use for ST is this one:
>> <if(grammar.IsGrammarRoot)>
>> const
>> TOKEN_COUNT = <length(tokenNames)>+3;
>> TOKENS_NAMES: array[0..TOKEN_COUNT] of String = (
>> '<invalid>',
>> '<EOR>',
>> '<DOWN>',
>> '<UP>',
>> <tokenNames:{<it>}; separator=",\n">
>> );
>> <endif>
>>
>> I'm wondering how I can introduce a regexp expression in the tokenNames 
>> rules above to replace the chars ' by '' and " by '.
>>
>> Best regards,
>> Thierry
>>
>> Jim Idle wrote:
>>     
>>> Thierry,
>>>
>>> Sorry but I am still not quite following you. Are you saying that your parser is generated in Java and you want to generate it in Pascal? Or that you have a parser whose output is created by a StringTemplate? Changing the string delimiters should be trivial for the latter case, but there is no way to make the Java output of ANTLR be Pascal without writing a Pascal language target. 
>>>
>>> Can you post a small example of what you are trying to achieve?
>>>
>>> Jim
>>>
>>>
>>>       
>>>> -----Original Message-----
>>>> From: Thierry Coq [mailto:tcoq at free.fr]
>>>> Sent: Tuesday, December 15, 2009 9:41 PM
>>>> To: Jim Idle
>>>> Subject: Re: [stringtemplate-interest] Replacing double quotes by
>>>> single quotes in output strings?
>>>>
>>>> Jim,
>>>>
>>>> thank you for your prompt answer.
>>>>
>>>> I'm working with ANTLR which is using StringTemplate.
>>>>
>>>> ANTLR generates code using the StringTemplate. Of course, I don't want
>>>> to touch ANTLR or StringTemplate to use them to generate code. So I'm
>>>> limited to using string template *.st and *.stg files to do the job.
>>>>
>>>> In ANTLR, the tokens are declared as Java strings and output to the
>>>> generated code as java strings, as-is something rather uncompilable for
>>>> Pascal. I need to be able, once the tokens have been analyzed by ANTLR
>>>> to generate them in a format understandable by pascal, aka replacing
>>>> the
>>>> double quotes by simple one, and doubling the simple quotes within the
>>>> strings, if any.
>>>>
>>>> Is this possible?
>>>>
>>>> Best regards,
>>>> Thierry
>>>>
>>>> Jim Idle wrote:
>>>>
>>>>         
>>>>> Not sure what you are asking for to be honest. Are just wanting to
>>>>>
>>>>>           
>>>> escape characters? Do you mean StringTemplate and not ANTLR? If you
>>>> means StringTemplate then perhaps you need a renderer method, but
>>>> generally you should do such replacements in the model and not in the
>>>> template.
>>>>
>>>>         
>>>>> Jim
>>>>>
>>>>>
>>>>>
>>>>>           
>>>>>> -----Original Message-----
>>>>>> From: stringtemplate-interest-bounces at antlr.org
>>>>>>
>>>>>>             
>>>> [mailto:stringtemplate-
>>>>
>>>>         
>>>>>> interest-bounces at antlr.org] On Behalf Of Thierry Coq
>>>>>> Sent: Tuesday, December 15, 2009 12:52 PM
>>>>>> To: stringtemplate-interest at antlr.org
>>>>>> Subject: [stringtemplate-interest] Replacing double quotes by single
>>>>>> quotes in output strings?
>>>>>>
>>>>>> Hello,
>>>>>>
>>>>>> is it possible to replace a double-quoted string, for example "HS"
>>>>>>
>>>>>>             
>>>> by
>>>>
>>>>         
>>>>>> single quotes: 'HS', and double single quotes when needed: for
>>>>>>
>>>>>>             
>>>> example:
>>>>
>>>>         
>>>>>> "'='" becomes '''=''', in the ANTLR code generator?
>>>>>>
>>>>>> I'm looking for a regexp, but I can't seem to find it.
>>>>>>
>>>>>> Best regards,
>>>>>> Thierry
>>>>>> _______________________________________________
>>>>>> stringtemplate-interest mailing list
>>>>>> stringtemplate-interest at antlr.org
>>>>>> http://www.antlr.org/mailman/listinfo/stringtemplate-interest
>>>>>>
>>>>>>
>>>>>>             
>>>>> _______________________________________________
>>>>> stringtemplate-interest mailing list
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>>>>>
>>>>>
>>>>>
>>>>>
>>>>>           
>>>
>>>
>>>
>>>
>>>
>>>       
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>> http://www.antlr.org/mailman/listinfo/stringtemplate-interest
>>     
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