Re: [Grammatica-users] Multiline String & repeated terms

[Per Cederberg]

A quick search on stackoverflow gives you this:

http://stackoverflow.com/questions/22244627/regexp-for-comments

That is, the problem is that the regex .* doesn't match newlines. There are lots of ways to handle this. Unfortunately there is no "dotall" flag in Grammatica though.

/Per

On Sun, Apr 26, 2015 at 9:11 PM, Alex Jeannopoulos <address@hidden> wrote:

I solved my own issue, but I am still having a lingering issue, I am looking to support a multi line string similar to python. I have the following defined.

%tokens%

MULTILINE_STRING                                   = <<(""").*(""")>>

QUOTED_STRING                                      = <<"([^"]|"")*+">>

%productions%

TEXT              = QUOTED_STRING | MULTILINE_STRING;

It seems that all string even a multi line string with """ (3 quotes) gets matched as a QUOTED_STRING. Any ideas?

On Sun, Apr 26, 2015 at 2:45 AM, Alex Jeannopoulos <address@hidden> wrote:

I am working through 2 issues, that I would like some advise on. Attached is a grammar and protocol files. Within the message are highlights of the grammar.

1. I am attempting to have a repeated term "CODE_DEFINITION", I am getting the following error when the CODE term is repeated.

[29:1] unexpected token "CODE", expected <EOF>, on line 29 column: 1

2. In my regex for a MULTILINE string a double quoted value breaks the parsing. Any thoughts how I can better support a python like multi line string, without escaping quotes within the """ block?

Thanks in advance.

CODE_LANG           = PAREN_OPEN IDENTIFIER_STRING PAREN_CLOSE;

CODE_DEFINITION     = CODE CODE_LANG? TEXT;


EventDefinition   = SERVER_TYPE
                    CODE_TYPE
                    EVENT_TYPE
                    IDENTIFIER_STRING DEC_NUMBER
                    VERSION_TAG?
                    PAYLOAD
                    PAYLOAD_DESCRIPTION_INFO
                    EVENT_DESCRIPTION_INFO
                    CATEGORY_INFO
                    ACTIVE_STATE?
                    CODE_DEFINITION*
                    ;

MULTILINE_STRING                        = <<(^""")([^*]|\*+[^*/])*("""$)>>
QUOTED_STRING                           = <<"([^"]|"")*+">>

TEXT              = QUOTED_STRING | MULTILINE_STRING;

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