linux-kernel - bootconfig: Fix parser bugs (Re: [PATCH 0/4] bootconfig: Fix a parser bug)

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Message-Id: <20200921185624.9eafc08c6f8affd3b9fb47fb@gmail.com>
Date:   Mon, 21 Sep 2020 18:56:24 +0900
From:   Masami Hiramatsu <masami.hiramatsu@...il.com>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     Steven Rostedt <rostedt@...dmis.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...hat.com>
Subject: bootconfig: Fix parser bugs (Re: [PATCH 0/4] bootconfig: Fix a
 parser bug)


Oops, the title is wrong, there are 2 bugs.

On Mon, 21 Sep 2020 18:44:33 +0900
Masami Hiramatsu <mhiramat@...nel.org> wrote:

> Hi,
> 
> Here are patches to fix 2 bugs in the parser. One issue happens
> when a key has a siblings and the key repeated with brace after
> sibling nodes. Another one is that the parser keeps tailing
> spaces when we put a comment on the line.
> 
> For example, the minimum example of the 1st issue is here;
> 
> foo
> bar
> foo { buz }
> 
> This should be parsed as
> 
> foo.buz
> bar
> 
> But the bootconfig parser parses it as foo.buz (no bar node)
> because foo->bar link is unlinked when the brace ("foo {") was
> found.
> 
> The second one is simpler, if we have
> 
> foo = val  # comment
> 
> The value's space after the word was not removed.
> 
> foo="val  "
> 
> But this also should be
> 
> foo="val"
> 
> If user needs tailing spaces, they can use quotes, e.g.
> 
> foo = "val  " # comment
> 
> 
> Thank you,
> 
> ---
> 
> Masami Hiramatsu (4):
>       lib/bootconfig: Fix a bug of breaking existing tree nodes
>       lib/bootconfig: Fix to remove tailing spaces after value
>       tools/bootconfig: Add testcases for repeated key with brace
>       tools/bootconfig: Add testcase for tailing space
> 
> 
>  tools/bootconfig/test-bootconfig.sh |   25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 
> --
> Masami Hiramatsu (Linaro) <mhiramat@...nel.org>


-- 
Masami Hiramatsu