Date: Sun, 14 May 2017 13:14:19 +0000 (UTC) From: Jilles Tjoelker <jilles@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r318269 - in head/bin/sh: . tests/builtins Message-ID: <201705141314.v4EDEJrd039111@repo.freebsd.org>
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Author: jilles Date: Sun May 14 13:14:19 2017 New Revision: 318269 URL: https://svnweb.freebsd.org/changeset/base/318269 Log: sh: Fix '-' from quoted arithmetic in case/glob pattern range. It does not make much sense to generate the '-' in a pattern bracket expression using arithmetic expansion, but it does not make sense to forbid it either. Try to avoid reprocessing the string if it is unnecessary. Added: head/bin/sh/tests/builtins/case22.0 (contents, props changed) Modified: head/bin/sh/expand.c head/bin/sh/tests/builtins/Makefile Modified: head/bin/sh/expand.c ============================================================================== --- head/bin/sh/expand.c Sun May 14 12:41:58 2017 (r318268) +++ head/bin/sh/expand.c Sun May 14 13:14:19 2017 (r318269) @@ -440,8 +440,15 @@ expari(const char *p, struct nodelist ** fmtstr(expdest, DIGITS(result), ARITH_FORMAT_STR, result); adj = strlen(expdest); STADJUST(adj, expdest); - if (!quoted) - reprocess(expdest - adj - stackblock(), flag, VSNORMAL, 0, dst); + /* + * If this is quoted, a '-' must not indicate a range in [...]. + * If this is not quoted, splitting may occur. + */ + if (quoted ? + result < 0 && begoff > 1 && flag & (EXP_GLOB | EXP_CASE) : + flag & EXP_SPLIT) + reprocess(expdest - adj - stackblock(), flag, VSNORMAL, quoted, + dst); return p; } Modified: head/bin/sh/tests/builtins/Makefile ============================================================================== --- head/bin/sh/tests/builtins/Makefile Sun May 14 12:41:58 2017 (r318268) +++ head/bin/sh/tests/builtins/Makefile Sun May 14 13:14:19 2017 (r318269) @@ -41,6 +41,7 @@ ${PACKAGE}FILES+= case18.0 ${PACKAGE}FILES+= case19.0 ${PACKAGE}FILES+= case20.0 ${PACKAGE}FILES+= case21.0 +${PACKAGE}FILES+= case22.0 ${PACKAGE}FILES+= cd1.0 ${PACKAGE}FILES+= cd2.0 ${PACKAGE}FILES+= cd3.0 Added: head/bin/sh/tests/builtins/case22.0 ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/bin/sh/tests/builtins/case22.0 Sun May 14 13:14:19 2017 (r318269) @@ -0,0 +1,10 @@ +# $FreeBSD$ + +case 5 in +[0"$((-9))"]) echo bad1 ;; +esac + +case - in +[0"$((-9))"]) ;; +*) echo bad2 ;; +esac
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