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Date:      Tue, 22 May 2018 06:13:45 +0200
From:      "O. Hartmann" <ohartmann@walstatt.org>
To:        Jilles Tjoelker <jilles@FreeBSD.org>
Cc:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   Re: svn commit: r334008 - head/bin/sh
Message-ID:  <20180522061339.2149763e@freyja.zeit4.iv.bundesimmobilien.de>
In-Reply-To: <201805212152.w4LLqmOi033238@repo.freebsd.org>
References:  <201805212152.w4LLqmOi033238@repo.freebsd.org>

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On Mon, 21 May 2018 21:52:48 +0000 (UTC)
Jilles Tjoelker <jilles@FreeBSD.org> wrote:

> Author: jilles
> Date: Mon May 21 21:52:48 2018
> New Revision: 334008
> URL: https://svnweb.freebsd.org/changeset/base/334008
> 
> Log:
>   sh: Split CNL syntax category to avoid a check on state[level].syntax
>   
>   No functional change is intended.
> 
> Modified:
>   head/bin/sh/mksyntax.c
>   head/bin/sh/parser.c
> 
> Modified: head/bin/sh/mksyntax.c
> ==============================================================================
> --- head/bin/sh/mksyntax.c	Mon May 21 21:44:47 2018	(r334007)
> +++ head/bin/sh/mksyntax.c	Mon May 21 21:52:48 2018	(r334008)
> @@ -65,6 +65,7 @@ struct synclass {
>  static const struct synclass synclass[] = {
>  	{ "CWORD",	"character is nothing special" },
>  	{ "CNL",	"newline character" },
> +	{ "CQNL",	"newline character in quotes" },
>  	{ "CBACK",	"a backslash character" },
>  	{ "CSBACK",	"a backslash character in single quotes" },
>  	{ "CSQUOTE",	"single quote" },
> @@ -185,7 +186,7 @@ main(int argc __unused, char **argv __unused)
>  	fputs("\n/* syntax table used when in double quotes */\n", cfile);
>  	init("dqsyntax");
>  	add_default();
> -	add("\n", "CNL");
> +	add("\n", "CQNL");
>  	add("\\", "CBACK");
>  	add("\"", "CENDQUOTE");
>  	add("`", "CBQUOTE");
> @@ -198,7 +199,7 @@ main(int argc __unused, char **argv __unused)
>  	fputs("\n/* syntax table used when in single quotes */\n", cfile);
>  	init("sqsyntax");
>  	add_default();
> -	add("\n", "CNL");
> +	add("\n", "CQNL");
>  	add("\\", "CSBACK");
>  	add("'", "CENDQUOTE");
>  	/* ':/' for tilde expansion, '-^]' for [a\-x] pattern ranges */
> @@ -208,7 +209,7 @@ main(int argc __unused, char **argv __unused)
>  	fputs("\n/* syntax table used when in arithmetic */\n", cfile);
>  	init("arisyntax");
>  	add_default();
> -	add("\n", "CNL");
> +	add("\n", "CQNL");
>  	add("\\", "CBACK");
>  	add("`", "CBQUOTE");
>  	add("\"", "CIGN");
> 
> Modified: head/bin/sh/parser.c
> ==============================================================================
> --- head/bin/sh/parser.c	Mon May 21 21:44:47 2018	(r334007)
> +++ head/bin/sh/parser.c	Mon May 21 21:52:48 2018	(r334008)
> @@ -1434,9 +1434,10 @@ readtoken1(int firstc, char const *initialsyntax, cons
>  
>  			switch(synentry) {
>  			case CNL:	/* '\n' */
> -				if (level == 0 &&
> -				    state[level].syntax == BASESYNTAX)
> +				if (level == 0)
>  					goto endword;	/* exit outer
> loop */
> +				/* FALLTHROUGH */
> +			case CQNL:
>  				USTPUTC(c, out);
>  				plinno++;
>  				if (doprompt)
> _______________________________________________
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Have this been tested? Doesn't compile for me:

[...]
Building /usr/obj/usr/src/amd64.amd64/kerberos5/libexec/hprop/hprop
--- all_subdir_rescue ---
--- parser.o ---
/usr/src/bin/sh/parser.c:1440:9: error: use of undeclared identifier 'CQNL'
                        case CQNL:
                             ^
--- all_subdir_gnu ---
Building /usr/obj/usr/src/amd64.amd64/gnu/usr.bin/gdb/libgdb/amd64bsd-nat.o
--- all_subdir_rescue ---
1 error generated.
*** [parser.o] Error code 1

make[6]: stopped in /usr/src/bin/sh



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