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Tue, 19 Jul 2022 17:18:27 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Bart Schaefer Date: Tue, 19 Jul 2022 17:18:16 -0700 Message-ID: Subject: Re: Is it possible to clear empty :-tied elements? To: Sebastian Gniazdowski Cc: Zsh Users Content-Type: text/plain; charset="UTF-8" X-Seq: 27899 Archived-At: X-Loop: zsh-users@zsh.org Errors-To: zsh-users-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-users-request@zsh.org X-no-archive: yes List-Id: List-Help: List-Subscribe: List-Unsubscribe: List-Post: List-Owner: List-Archive: On Tue, Jul 19, 2022 at 12:55 PM Sebastian Gniazdowski wrote: > > export -UT CMAKE_PREFIX_PATH="$ZPFX:$CMAKE_PREFIX_PATH" cmake_prefix_path > > The problem is that the variable/array will contain empty element if the variable is empty when export is run. Perhaps this is most easily done with export -UT CMAKE_PREFIX_PATH="${ZPFX:+$ZPFX:}$CMAKE_PREFIX_PATH" cmake_prefix_path ??