Hi,
If you are looking for PEG parsers, you can also try using PetitParser as it
comes with several debugging and inspection tools.
Cheers,
Doru
> On Jun 23, 2016, at 10:23 PM, stepharo <steph...@free.fr> wrote:
>
> Hi sean
>
> Xtreams? Just to be sure is PEGParser built using Xtreams?
>
>
> Stef
>
> Le 23/6/16 à 02:20, Sean P. DeNigris a écrit :
>> I converted parts of rfc 5322 to the following:
>> grammarEmailAddress
>>
>> ^'addrspec <- localpart "@" domain
>> localpart <- dotatom / quotedstring /* obs-local-part */
>> domain <- dotatom / domainliteral /* obs-domain */
>> domainliteral <- [CFWS] "[" *([FWS] dtext) [FWS] "]" [CFWS]
>> dtext <- [\x000021-\x000050] / /* Printable US-ASCII */
>>
>> [\x000054-\x00007E] /* characters not including */
>>
>> /* / obs-dtext ; "[", "]", or "\" */
>>
>> /* rfc5234 B.1 */
>> ALPHA <- [\x000041-\x00005A] / [\x000061-\x00007A]
>> DIGIT <- [\x000030-\x000039]
>> HTAB <- [\x000009] /* horizontal tab */
>> SP <- [\x000020]
>> WSP <- SP / HTAB
>>
>> /* 3.2.2. Folding White Space and Comments */
>> FWS <- ([*WSP CRLF] 1*WSP)
>> /* obs-FWS */
>> ctext <- [\x000021-\x000027] /
>> [\x00002A-\x00005B] /
>> [\x00005D-\x00007E]
>>
>> ccontent <- ctext / quotedpair / comment
>>
>> comment <- "(" *([FWS] ccontent) [FWS] ")"
>>
>> CFWS <- (1*([FWS] comment) [FWS]) / FWS
>> /* 3.2.1. Quoted characters */
>> quotedpair <- ("\" (VCHAR / WSP)) /* / obs-qp */
>> /* 3.2.3. Atom */
>> atext <- ALPHA / DIGIT /
>> "!" / "#" /
>> "$" / "%" /
>> "&" / "''" /
>> "*" / "+" /
>> "-" / "/" /
>> "=" / "?" /
>> "^" / "_" /
>> "`" / "{" /
>> "|" / "}" /
>> "~"
>>
>> atom <- [CFWS] 1*atext [CFWS]
>>
>> dotatomtext <- 1*atext *("." 1*atext)
>>
>> dotatom <- [CFWS] dotatomtext [CFWS]
>>
>> /* 3.2.4. Quoted Strings */
>> qtext <- [\x000021] /
>> /* Printable US-ASCII */
>> [\x000023-\x00005B] / /* characters not including */
>> [\x00005D-\x00007E] /* "\" or the quote
>> character */
>> /* obs-qtext */
>> qcontent <- qtext / quotedpair
>> quotedstring <- [CFWS] DQUOTE *([FWS] qcontent) [FWS] DQUOTE [CFWS]'
>>
>> When I evaluate:
>> parser := PEGParser parserPEG parse: 'Grammar' stream: PEGParser
>> grammarEmailAddress actor: PEGParserParser new.
>>
>> I get: KeyNotFound: key 'quotedstring' not found in Dictionary
>>
>> How am I supposed to debug that to find the typo in my giant string above?!
>>
>>
>>
>> -----
>> Cheers,
>> Sean
>> --
>> View this message in context:
>> http://forum.world.st/Xtreams-Debugging-Grammars-tp4902581.html
>> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.
>>
>>
>
>
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