# [OS X TeX] Goto Error (TS 4.23)

Ross Moore ross.moore at mq.edu.au
Mon Jan 28 23:46:56 CET 2019

Hello Louis, Justin, Themis,

On 29 Jan 2019, at 9:18 am, Louis Talman <talmanl at gmail.com<mailto:talmanl at gmail.com>> wrote:

On Mon, 28 Jan 2019 13:18:32 -0700, Justin C. Walker <justin at mac.com<mailto:justin at mac.com>>
wrote:

> the error occurs where the closing brace isn’t :-}, and that is hard to
> locate…

Is your error the missing closing brace?

That is actually not an error until TeX encounters something that is not supposed
to be enclosed within \textit{…. } which is an “inner” macro.
“Outer" material is stuff like an end of paragraph (\par  or  blank line).
This inner/outer distinction is part of TeX (the language).
It isn’t all that well explained in LaTeX documentation.

Put simply, macros like \textit, \textbf, \textsf, etc. are meant to have short arguments
consisting of just a few words. Although they can be nested, this is usually not a good idea.

If you want to apply font-style changes to whole paragraphs, or to several paragraphs
(within an environment, or perhaps not), it is better to use the declarative forms
\itshape,  \bfseries , \sffamily,  etc.
These apply up until the closing of the grouping within which they occur.
Since each adjust font-family characteristics, you can use multiples of these to get
the required representation; e.g. use a bold-italic sans-serif font, if this is available
with whatever packages you are using.

In your case however, it’s probably not until the end of the paragraph that an error will be reported.
Maybe not until several paragraphs, depending on how clean is your LaTeX coding.

Cannot you use syntax-colouring to find the mistake?
Locate \textit and arrow-right to the { .
Everything until *an* actual close should become coloured.
Presumably only a few words were intended, so you’ll have to decide which ones for yourself.

A bit more precisely: \textit{everywhere} is where the closing brace isn't.

--Louis A. Talman, Ph.D.
Emeritus Professor of Mathematics
Metropolitan State University of Denver

<http://sites.msudenver.edu/talmanl/homepage/<https://protect-au.mimecast.com/s/agALC5QP8ySgPp5GClmbT1?domain=sites.msudenver.edu>>

Hope this helps.

Ross

Dr Ross Moore
Department of Mathematics and Statistics
12 Wally’s Walk, Level 7, Room 734
Macquarie University, NSW 2109, Australia
T: +61 2 9850 8955  |  F: +61 2 9850 8114
M:+61 407 288 255  |  E: ross.moore at mq.edu.au<mailto:ross.moore at mq.edu.au>
http://www.maths.mq.edu.au
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