Re: parse last line

jpowers@ti.com
Tue, 21 Feb 1995 18:50:52 GMT

          From comp.compilers

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parse last line aw0g+@andrew.cmu.edu (Aaron Wohl) (1995-02-17)
Re: parse last line umrigar@cs.binghamton.edu (Zerksis D. Umrigar) (1995-02-21)
Re: parse last line jpowers@ti.com (1995-02-21)
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Newsgroups: comp.compilers
From: jpowers@ti.com
Keywords: lex, parse
Organization: Texas Instruments
References: 95-02-134
Date: Tue, 21 Feb 1995 18:50:52 GMT

<aw0g+@andrew.cmu.edu> writes:
> How do folks handle parsing the last line of input?
>
> I am using lex/yacc for a new compiler for an obscure basic dialect
> that up until now has only been interpreted. It is fairly common
> for the basic programs to not have and end of line character on the
> last line. My grammar looks like:


[snip]


Change your grammar to make EOL a statement separator instead of a
statement ender.


program:
        stmtlist
    ;


stmtlist:
        stmt
    | stmtlist EOL stmt
    ;


regards, jpp@ti.com
--


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