[fpc-pascal] Parser Generator

[Torsten Bonde Christiansen]

On 2016-05-20 10:40, Carlo Kok wrote:
>
>
> On 2016-05-19 13:10, Torsten Bonde Christiansen wrote:
>> Hi.
>>
>> I am currently looking into integrating a custom language parser into my
>> program and have been
>> searching the web for parser generators that can create Pascal code from
>> a custom language.
>>
>> So far in my search i have found the following "options":
>>
>> * GOLD Parser: http://www.goldparser.org/
>> Was last updated in sept. 2012 and the lastest pascal implementation is
>> not for the lastest version of the program!
>>
>> * COCO/R: http://www.ssw.uni-linz.ac.at/Research/Projects/Coco/
>> Same as with the GOLD parser - last updated in 2014 and lastest pascal
>> implementation is for an older version of the program.
>>
>> * TP Yacc/Lex: (included in Free Pascal)
>> Is included with Free Pascal, but the generated code is non-OO, and
>> seems to rely on text-files for input.
>>
>> So if there is anyone out there who knows of such a generator I would be
>> glad to know.
>>
>
> It's been my experience that all the compiler compilers have one or 
> more flaws that make it more work in the end to use them than to just 
> write a parser by hand.

Previously I have worked with TP Lex/Yacc and it works fine with 
limitations it has. And yes, using a parser generator is not a magic 
wand that creates code to run without modification, but on most 
occations I find that the post-processing required with this approach is 
far less than writing my own parser.

kind regards,
Torsten Bonde Christiansen.