Fellow monks,
I want to use Parse::RecDescent to parse a certain assembly language. In assembly, data is "line oriented", that is newline is the statement separator. Simplified demonstration:
command1 arg1 \n
command2 arg2 \n
Defines two statements. More than one statement on a line is illegal, a statement broken to two lines is also illegal.
Now, P::RD has an issue with newlines. It swallows them by default. There is a workaround using the "skip" directive, but it became tedious and my grammar code is full of <skip: qr/ \t*/> directives.
Is there an easier way ?
What I want, for starters, is a trivial "command arg" pairs for statements:
line -> command arg "\n"
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.