gnupic: some problem in source code--scan.l
Subject:
Re: some problem in source code--scan.l
From:
Byron Jeff ####@####.####
Date:
10 Jul 2012 02:48:25 -0000
Message-Id: <20120710024814.GA8392@mail.clayton.edu>
On Tue, Jul 10, 2012 at 09:50:13AM +0800, feqin fan wrote:
> Hello, everyone..
>
> I have some problem need your help, THX..
>
> at the beginning of scan.l LINE 97
>
> #define YY_INPUT(buf,result,max_size) \
> { \
> GP_INPUT(buf,result,max_size); \
> if (result) \
> { \
> state.src->last_char_is_nl = (buf[result - 1] == '\n'); \
> } \
> else if (!state.src->last_char_is_nl) \
> { \
> *buf = '\n'; \
> result = 1; \
> state.src->last_char_is_nl = true; \
> } \
> }
>
> BUT,state.src->last_char_is_nl = true, WHERE is the number
> *last_char_is_nl* in struct state.src ?
>
> --------------------------------------------
>
> Another problem, the pattern ^{IDENT}#v\( match what?
> someone Please give me a example..
Can't answer the first one. But can on the second. The #v notation is
described in the MPASM manual on page 67. Here's a link:
http://courses.washington.edu/phys335/datasheets/mpasm-usersguide.pdf
Primary usage is to create unique labels in macros. The document gives the
example:
define_table macro
local a = 0
while a < 3
entry#v(a) dw 0
a += 1
endw
endm
each entry#v(a) would generate a unique label with the string entry and the
current value of the a variable when the macro is invoked..
entry0 dw0
entry1 dw0
entry2 dw0
entry3 dw0
Hope this helps.
BAJ
>
> Thank you, guys..
>
> :-)
>
>
>
> ------------------------------------
>
> live long and prosper..
--
Byron A. Jeff
Department Chair: IT/CS/CNET
College of Information and Mathematical Sciences
Clayton State University
http://cims.clayton.edu/bjeff
