* [cocci] How do I disable formatting for the "+"-side of a rule?
@ 2022-07-14 9:31 Ævar Arnfjörð Bjarmason
2022-07-14 9:39 ` Julia Lawall
0 siblings, 1 reply; 5+ messages in thread
From: Ævar Arnfjörð Bjarmason @ 2022-07-14 9:31 UTC (permalink / raw)
To: Coccinelle ML
How do I stop coccinelle from turning my "{ 0 };\n" into
"{\n\t\t0\n\t};\n"?
I haven't been able to find in the docs how to disable formatting on the
"+"-side of a rule. I have a rule like:
@@
type T;
identifier I;
@@
- T I;
+ T I = { 0 };
... when != \( I \| &I \)
- memset(&I, 0, ...);
Which produces the expected results as far as the patch is concerned:
diff -u -p a/builtin/for-each-ref.c b/builtin/for-each-ref.c
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -20,7 +20,9 @@ int cmd_for_each_ref(int argc, const cha
struct ref_sorting *sorting;
struct string_list sorting_options = STRING_LIST_INIT_DUP;
int maxcount = 0, icase = 0;
- struct ref_array array;
+ struct ref_array array = {
+ 0
+ };
struct ref_filter filter;
struct ref_format format = REF_FORMAT_INIT;
struct strbuf output = STRBUF_INIT;
@@ -52,7 +54,6 @@ int cmd_for_each_ref(int argc, const cha
OPT_END(),
};
- memset(&array, 0, sizeof(array));
memset(&filter, 0, sizeof(filter));
format.format = "%(objectname) %(objecttype)\t%(refname)";
But I'd like for that to be e.g.:
struct ref_array array = { 0 };
Which is a common idiom both in this codebase (git) and elsewhere.
Usually I can find an answer in one of the coccinelle.git's *.cocci
files, the man page, or the grammar PDF, but in this case I've come up
blank...
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [cocci] How do I disable formatting for the "+"-side of a rule?
2022-07-14 9:31 [cocci] How do I disable formatting for the "+"-side of a rule? Ævar Arnfjörð Bjarmason
@ 2022-07-14 9:39 ` Julia Lawall
2022-07-14 9:52 ` Ævar Arnfjörð Bjarmason
0 siblings, 1 reply; 5+ messages in thread
From: Julia Lawall @ 2022-07-14 9:39 UTC (permalink / raw)
To: Ævar Arnfjörð Bjarmason; +Cc: Coccinelle ML
[-- Attachment #1: Type: text/plain, Size: 1590 bytes --]
On Thu, 14 Jul 2022, Ævar Arnfjörð Bjarmason wrote:
> How do I stop coccinelle from turning my "{ 0 };\n" into
> "{\n\t\t0\n\t};\n"?
>
> I haven't been able to find in the docs how to disable formatting on the
> "+"-side of a rule. I have a rule like:
>
> @@
> type T;
> identifier I;
> @@
> - T I;
> + T I = { 0 };
> ... when != \( I \| &I \)
> - memset(&I, 0, ...);
>
> Which produces the expected results as far as the patch is concerned:
>
> diff -u -p a/builtin/for-each-ref.c b/builtin/for-each-ref.c
> --- a/builtin/for-each-ref.c
> +++ b/builtin/for-each-ref.c
> @@ -20,7 +20,9 @@ int cmd_for_each_ref(int argc, const cha
> struct ref_sorting *sorting;
> struct string_list sorting_options = STRING_LIST_INIT_DUP;
> int maxcount = 0, icase = 0;
> - struct ref_array array;
> + struct ref_array array = {
> + 0
> + };
> struct ref_filter filter;
> struct ref_format format = REF_FORMAT_INIT;
> struct strbuf output = STRBUF_INIT;
> @@ -52,7 +54,6 @@ int cmd_for_each_ref(int argc, const cha
> OPT_END(),
> };
>
> - memset(&array, 0, sizeof(array));
> memset(&filter, 0, sizeof(filter));
>
> format.format = "%(objectname) %(objecttype)\t%(refname)";
>
> But I'd like for that to be e.g.:
>
> struct ref_array array = { 0 };
>
> Which is a common idiom both in this codebase (git) and elsewhere.
>
> Usually I can find an answer in one of the coccinelle.git's *.cocci
> files, the man page, or the grammar PDF, but in this case I've come up
> blank...
Try --smpl-spacing. I'm not sure whether it affects newlines, though.
julia
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [cocci] How do I disable formatting for the "+"-side of a rule?
2022-07-14 9:39 ` Julia Lawall
@ 2022-07-14 9:52 ` Ævar Arnfjörð Bjarmason
2022-07-14 10:47 ` Julia Lawall
0 siblings, 1 reply; 5+ messages in thread
From: Ævar Arnfjörð Bjarmason @ 2022-07-14 9:52 UTC (permalink / raw)
To: Julia Lawall; +Cc: Coccinelle ML
On Thu, Jul 14 2022, Julia Lawall wrote:
> On Thu, 14 Jul 2022, Ævar Arnfjörð Bjarmason wrote:
>
>> How do I stop coccinelle from turning my "{ 0 };\n" into
>> "{\n\t\t0\n\t};\n"?
>>
>> I haven't been able to find in the docs how to disable formatting on the
>> "+"-side of a rule. I have a rule like:
>>
>> @@
>> type T;
>> identifier I;
>> @@
>> - T I;
>> + T I = { 0 };
>> ... when != \( I \| &I \)
>> - memset(&I, 0, ...);
>>
>> Which produces the expected results as far as the patch is concerned:
>>
>> diff -u -p a/builtin/for-each-ref.c b/builtin/for-each-ref.c
>> --- a/builtin/for-each-ref.c
>> +++ b/builtin/for-each-ref.c
>> @@ -20,7 +20,9 @@ int cmd_for_each_ref(int argc, const cha
>> struct ref_sorting *sorting;
>> struct string_list sorting_options = STRING_LIST_INIT_DUP;
>> int maxcount = 0, icase = 0;
>> - struct ref_array array;
>> + struct ref_array array = {
>> + 0
>> + };
>> struct ref_filter filter;
>> struct ref_format format = REF_FORMAT_INIT;
>> struct strbuf output = STRBUF_INIT;
>> @@ -52,7 +54,6 @@ int cmd_for_each_ref(int argc, const cha
>> OPT_END(),
>> };
>>
>> - memset(&array, 0, sizeof(array));
>> memset(&filter, 0, sizeof(filter));
>>
>> format.format = "%(objectname) %(objecttype)\t%(refname)";
>>
>> But I'd like for that to be e.g.:
>>
>> struct ref_array array = { 0 };
>>
>> Which is a common idiom both in this codebase (git) and elsewhere.
>>
>> Usually I can find an answer in one of the coccinelle.git's *.cocci
>> files, the man page, or the grammar PDF, but in this case I've come up
>> blank...
>
> Try --smpl-spacing. I'm not sure whether it affects newlines, though.
Thanks, no it just changes the spacing of the "=", i.e.:
+ struct ref_array array = {
v.s. with --smpl-spacing:
+ struct ref_array array<TAB>= {
(Or similar, I think it's aligning to the "=" above it?)
But the rest is the same, i.e. a \n after the "{", the "0" on its own
line etc.
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [cocci] How do I disable formatting for the "+"-side of a rule?
2022-07-14 9:52 ` Ævar Arnfjörð Bjarmason
@ 2022-07-14 10:47 ` Julia Lawall
2022-07-15 9:50 ` Ævar Arnfjörð Bjarmason
0 siblings, 1 reply; 5+ messages in thread
From: Julia Lawall @ 2022-07-14 10:47 UTC (permalink / raw)
To: Ævar Arnfjörð Bjarmason; +Cc: Coccinelle ML
> Thanks, no it just changes the spacing of the "=", i.e.:
>
> + struct ref_array array = {
>
> v.s. with --smpl-spacing:
>
> + struct ref_array array<TAB>= {
Strange about the tab. There was no intent to have alignment.
> (Or similar, I think it's aligning to the "=" above it?)
>
> But the rest is the same, i.e. a \n after the "{", the "0" on its own
> line etc.
Coccinelle now just does what you asked for. If there is one element in
the initializer, it doesn't add newlines. So no need for the
--smpl-spacing argument.
julia
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [cocci] How do I disable formatting for the "+"-side of a rule?
2022-07-14 10:47 ` Julia Lawall
@ 2022-07-15 9:50 ` Ævar Arnfjörð Bjarmason
0 siblings, 0 replies; 5+ messages in thread
From: Ævar Arnfjörð Bjarmason @ 2022-07-15 9:50 UTC (permalink / raw)
To: Julia Lawall; +Cc: Coccinelle ML
On Thu, Jul 14 2022, Julia Lawall wrote:
>> Thanks, no it just changes the spacing of the "=", i.e.:
>>
>> + struct ref_array array = {
>>
>> v.s. with --smpl-spacing:
>>
>> + struct ref_array array<TAB>= {
>
> Strange about the tab. There was no intent to have alignment.
>
>> (Or similar, I think it's aligning to the "=" above it?)
>>
>> But the rest is the same, i.e. a \n after the "{", the "0" on its own
>> line etc.
>
> Coccinelle now just does what you asked for. If there is one element in
> the initializer, it doesn't add newlines. So no need for the
> --smpl-spacing argument.
Fantastic! I just tried with your
https://github.com/coccinelle/coccinelle/commit/bcc39cff36dcc8bbad3e2131fd92addc3ffa4ee5
and it formats it as expected, thanks a lot for the help & quick fix!
^ permalink raw reply [flat|nested] 5+ messages in thread
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2022-07-14 9:31 [cocci] How do I disable formatting for the "+"-side of a rule? Ævar Arnfjörð Bjarmason
2022-07-14 9:39 ` Julia Lawall
2022-07-14 9:52 ` Ævar Arnfjörð Bjarmason
2022-07-14 10:47 ` Julia Lawall
2022-07-15 9:50 ` Ævar Arnfjörð Bjarmason
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