Mailing-List: contact zsh-workers-help@zsh.org; run by ezmlm Precedence: bulk X-No-Archive: yes List-Id: Zsh Workers List List-Post: List-Help: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on f.primenet.com.au X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.0 X-AuditID: cbfec7f5-f79b16d000005389-fa-5698bebe938f Date: Fri, 15 Jan 2016 09:41:17 +0000 From: Peter Stephenson To: zsh-workers@zsh.org Subject: Re: bufferwords() lexes a subshell in a shortloop repeat as a string Message-id: <20160115094117.5fcde75c@pwslap01u.europe.root.pri> In-reply-to: <20160115062648.GA14019@tarsus.local2> References: <20160115062648.GA14019@tarsus.local2> Organization: Samsung Cambridge Solution Centre X-Mailer: Claws Mail 3.7.9 (GTK+ 2.22.0; i386-redhat-linux-gnu) MIME-version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrILMWRmVeSWpSXmKPExsVy+t/xK7r79s0IM3j4Sd/iYPNDJgdGj1UH PzAFMEZx2aSk5mSWpRbp2yVwZSyY8ICp4DNHRdvf7cwNjI3sXYycHBICJhJLFk2CssUkLtxb z9bFyMUhJLCUUWLdspmsEM4MJonF508xQjjnGCWm3N3HDuGcZZT48/o8WD+LgKrE01NPWEFs NgFDiambZjOC2CIC4hJn155nAbGFBXwlJvUfB6vnFbCXWLp8ApjNKWAscePfWWYQW0jASGL2 gn1gNr+AvsTVv5+YIO6zl5h55QwjRK+gxI/J98BmMgtoSWze1sQKYctLbF7zFmqOusSNu7vZ JzAKz0LSMgtJyywkLQsYmVcxiqaWJhcUJ6XnGukVJ+YWl+al6yXn525ihAT01x2MS49ZHWIU 4GBU4uH9wTkjTIg1say4MvcQowQHs5IIb/1ioBBvSmJlVWpRfnxRaU5q8SFGaQ4WJXHembve hwgJpCeWpGanphakFsFkmTg4pRoYrdn8vb6fN2CQMGZfEykstqim9lnjs++nIpjY2IPf53e8 lS0IZ5ty5zDHPP/XCqIWy7S7VV38DxbkbSn9o2srbOXhMv1oxr/go85MLgyJ+mtWnGV2OtGx R2+n0sZLqSpnF+pV1mj9z+aI/y55a+WODe/lopmu3dl1frXGCtOI/ytkr7S8ibimxFKckWio xVxUnAgA+Dl+UWQCAAA= X-Seq: zsh-workers 37641 On Fri, 15 Jan 2016 06:26:48 +0000 Daniel Shahaf wrote: > The ${(z)} modifier gives me a subshell as a single unit: It doesn't know it's a subshell; it doesn't know you want the first character to be in command position. It's not parsing the whole thing as a command expression, it's just splitting words, and (... ...) indeed works as a complete word: % noglob print -l one (two three) four one (two three) four The noglob hints at why parentheses not in command position are treated like that --- it's convenient for glob qualifiers. Having the parenthesised expressions in the strings 'one (two three) four' and '(two three)' split in different ways by the same function typically would be confusing, though it depends what you're doing with the result. It might be possible to add a flag to cause an expression you pass in to be split as if it were a complete command line, not just an arbitrary set of arguments, but that's a whole new ball game. If you're trying to make the (z) work as a kind of eval without execution, I think you're expecting too much. pws