Re: [PATCH v3] userdiff: add built-in pattern for rust

["Marc-André Lureau" <marcandre.lureau@redhat.com>]

Hi Johannes

On Tue, May 28, 2019 at 10:31 PM Johannes Sixt <j6t@kdbg.org> wrote:
>
> Am 28.05.19 um 18:34 schrieb Junio C Hamano:
> > Marc-André Lureau <marcandre.lureau@redhat.com> writes:
> >
> >> Ok, I am adding:
> >> ...
> >> sure, I thought it was already covered.
> >> ...
> >> I think that would be fine, ok I am changing it
> >
> > Thanks, both.
> >
> > The previous round has already hit 'next' (which means that we won't
> > replacing the patch wholesale), so whatever you do, please make the
> > update relative to / on top of what is queued as d74e7860
> > ("userdiff: add built-in pattern for rust", 2019-05-17).
>
> Ok. So, Marc-André, would you mind resending an incremental patch,
> because the word-regexp that is currently in 'next' would catch certain
> expressions that should be multiple words as a single word?

Beside a few extras tests, the diff is:

@@ -134,11 +134,10 @@ PATTERNS("ruby", "^[ \t]*((class|module|def)[ \t].*)$",
         "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+|\\?(\\\\C-)?(\\\\M-)?."
         "|//=?|[-+*/<>%&^|=!]=|<<=?|>>=?|===|\\.{1,3}|::|[!=]~"),
 PATTERNS("rust",
-        "^[\t ]*((pub(\\([^\\)]+\\))?[\t
]+)?((async|const|unsafe|extern([\t ]+\"[^\"]+\"))[\t
]+)?(struct|enum|union|mod|trait|fn|impl(<.+>)?)[ \t]+[^;]*)$",
+        "^[\t ]*((pub(\\([^\\)]+\\))?[\t
]+)?((async|const|unsafe|extern([\t ]+\"[^\"]+\"))[\t
]+)?(struct|enum|union|mod|trait|fn|impl)[< \t]+[^;]*)$",
         /* -- */
         "[a-zA-Z_][a-zA-Z0-9_]*"
-        "|[-+_0-9.eE]+(f32|f64|u8|u16|u32|u64|u128|usize|i8|i16|i32|i64|i128|isize)?"
-        "|0[box]?[0-9a-fA-F_]+(u8|u16|u32|u64|u128|usize|i8|i16|i32|i64|i128|isize)?"
+        "|[0-9][0-9_a-fA-Fiosuxz]*(\\.([0-9]*[eE][+-]?)?[0-9_fF]*)?"
         "|[-+*\\/<>%&^|=!:]=|<<=?|>>=?|&&|\\|\\||->|=>|\\.{2}=|\\.{3}|::"),

So it is simplifying handling of type parameters, and lowering the
complexity of literal numbers.

Both of these changes were based on your recommendations. Would you
mind sending a follow-up patch yourself?

I can send a seperate patch for the 3 extra tests.

thanks