parser for beginning of a line

> Hi,
>
> I have a case of a language that uses a line based syntax.
>
> Here is an example:
> '
> label1 => any kind of
> text on many lines
> label2 => more text on
> many
> lines
> label3 => more text'
>
> This should get 3 key-value pairs.
>
> My current solution goes like this:
> key := #newline asParser , ('=>' asParser / #newline asParser) negate star , '=>' asParser.
> p := (key trimBlanks, key negate star flatten) star.
>
> However, this is quite ugly. One idea to make it simpler would be to have a parser for the beginning of the line. What do you think?
>
> Cheers,
> Doru
>
> --
> www.tudorgirba.com
>
> "When people care, great things can happen."
>
>
>
>
> _______________________________________________
> Moose-dev mailing list
> [hidden email]
> https://www.iam.unibe.ch/mailman/listinfo/moose-dev
>

> Hi Doru,
>
> The package PetitRegex in PPRegexParser class>>initializeEscapeMap
> defines various parsers that do not consume anything but that check
> for certain conditions (beginning/end of input/word). In a similar way
> conditions for lines (whatever your definition of a line is) could be
> built.
>
> Lukas
>
> On 26 October 2010 14:53, Tudor Girba <[hidden email]> wrote:
>> Hi,
>>
>> I have a case of a language that uses a line based syntax.
>>
>> Here is an example:
>> '
>> label1 => any kind of
>> text on many lines
>> label2 => more text on
>> many
>> lines
>> label3 => more text'
>>
>> This should get 3 key-value pairs.
>>
>> My current solution goes like this:
>> key := #newline asParser , ('=>' asParser / #newline asParser) negate star , '=>' asParser.
>> p := (key trimBlanks, key negate star flatten) star.
>>
>> However, this is quite ugly. One idea to make it simpler would be to have a parser for the beginning of the line. What do you think?
>>
>> Cheers,
>> Doru
>>
>> --
>> www.tudorgirba.com
>>
>> "When people care, great things can happen."
>>
>>
>>
>>
>> _______________________________________________
>> Moose-dev mailing list
>> [hidden email]
>> https://www.iam.unibe.ch/mailman/listinfo/moose-dev
>>
>
>
>
> --
> Lukas Renggli
> www.lukas-renggli.ch
>

> Ahh, the productions of PPRegexParser>>beginOfLineAtom and
> PPRegexParser>>endOfLineAtom return examples for parsers you are
> interested in.
>
> Lukas
>
> On 26 October 2010 17:43, Lukas Renggli <[hidden email]> wrote:
>> Hi Doru,
>>
>> The package PetitRegex in PPRegexParser class>>initializeEscapeMap
>> defines various parsers that do not consume anything but that check
>> for certain conditions (beginning/end of input/word). In a similar way
>> conditions for lines (whatever your definition of a line is) could be
>> built.
>>
>> Lukas
>>
>> On 26 October 2010 14:53, Tudor Girba <[hidden email]> wrote:
>>> Hi,
>>>
>>> I have a case of a language that uses a line based syntax.
>>>
>>> Here is an example:
>>> '
>>> label1 => any kind of
>>> text on many lines
>>> label2 => more text on
>>> many
>>> lines
>>> label3 => more text'
>>>
>>> This should get 3 key-value pairs.
>>>
>>> My current solution goes like this:
>>> key := #newline asParser , ('=>' asParser / #newline asParser) negate star , '=>' asParser.
>>> p := (key trimBlanks, key negate star flatten) star.
>>>
>>> However, this is quite ugly. One idea to make it simpler would be to have a parser for the beginning of the line. What do you think?
>>>
>>> Cheers,
>>> Doru
>>>
>>> --
>>> www.tudorgirba.com
>>>
>>> "When people care, great things can happen."
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Moose-dev mailing list
>>> [hidden email]
>>> https://www.iam.unibe.ch/mailman/listinfo/moose-dev
>>>
>>
>>
>>
>> --
>> Lukas Renggli
>> www.lukas-renggli.ch
>>
>
>
>
> --
> Lukas Renggli
> www.lukas-renggli.ch
> _______________________________________________
> Moose-dev mailing list
> [hidden email]
> https://www.iam.unibe.ch/mailman/listinfo/moose-dev