> 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.
I do not know if i can do this but I will look in to it. Flex is new to me today. .
Thank you,
ƒg