Re: input code

[Hans Åberg]

> On 12 Dec 2019, at 22:32, Freeman Gilmore <address@hidden> wrote:
> 
>> On Thu, Dec 12, 2019 at 3:01 PM Hans Åberg <address@hidden> wrote:
>> 
>> > On 12 Dec 2019, at 14:01, Freeman Gilmore <address@hidden> wrote:
>> > 
>> > I would like to understand how it work, if i can.
>> 
>> There is a lexer generated from a file lexer.ll by Flex, which divides the 
>> input stream into tokens, which are handed over to a parser generated from a 
>> file parser.yy by Bison.
> 
> 0k that helps.   The lexer looks like what i an looking for I think at this 
> point; and from what you said.   I have the lexer.ll, parser.yy and 
> ly_grammar.txt files.     Now I need to finger out what part of the lexer 
> code reads the note event.

Check out the Bison manual, which also has a C++ calculator example with 
sources in the distribution. One can generate a file .output from the .yy file 
which contains all processing of the grammar would it be needed. Use flex 
2.5.37, because the C++ lexer in 2.6* is broken.