[OS X TeX] TeXShop: a way to automate terminating each line in a block with a comment symbol

Ross Moore ross.moore at mq.edu.au
Sun May 17 13:01:44 CEST 2020

Hello Murray,

On 17 May 2020, at 2:40 am, Murray Eisenberg <murrayeisenberg at gmail.com<mailto:murrayeisenberg at gmail.com>> wrote:

I have long blocks of code within a \newcommand{\cmdname}{…} definition that need to have each of the lines terminated with a comment sign (%).

Is there some way to select the block and apply that automatically?

Some trick I’ve missed? some macro I’ve overlooked?

My favourite motto is:
    “there’s always more than one way to do … “

Using a macro in the editor is one way, as Luis describes.

But you can get what you want entirely within TeX coding,
without adding any comment characters.

Just surround your definition block as follows.

\endlinechar=-1  %  suppress line endings from this point

 … }

\endlinechar=13    %  On a Mac the end-of-line character is  Ux0D  = ASCII 13

This kind of thing is normally done within package  .sty  files.
If you want to check the status of  \endlinechar  at any point, for whatever reason,
just use:


Hope this helps.
Stay safe.


Murray Eisenberg murrayeisenberg at gmail.com<mailto:murrayeisenberg at gmail.com>
503 King Farm Blvd #101 Home (240)-246-7240
Rockville, MD 20850-6667 Mobile (413)-427-5334

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Dr Ross Moore
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