I am just getting started with
Parse::RecDescent, a powerful mind bender if there ever was one, to build a parser for a somewhat obscure language and am a bit flummoxed at the first hurdle.
Like many languages, semicolons separate statements. However, there may be semicolons in quotes; e.g.,:
This is a statement ; Another statement ;
A statement "with a quoted ';'" ;
I am inclined to start with something like
startrule: statement(s /;/)
statement: ...
but am stuck on how to elegantly handle the quoting issues. Does one need to resort to a big, nasty regex or is there a more elegant way?
I've taken a look at resources such as the Parse::RecDescent Tutorial but haven't been able to find an answer. This seems the kind of thing that P::RD monks would have encountered on many an occasion.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.