Custom Macro to Wrap Content with and without spacing

Question

My question is similar to Wrap long text content that have no spaces where there are two answers to wrap content such as

\seqsplit{ATGTCCACTGATAAAAGTACACGCTATAATTTTCAGATTGAGAAAGCCCCCTCGTTGGCGTACGCTGCAGGTCGAC}

or the custom macro mentioned in the answer above

\def\enablehyph#1{\enablehyphA #1\end}
\def\enablehyphA#1{\ifx\end#1\unskip\unpenalty
   \else#1\penalty0\hskip0pt plus1pt\relax
   \expandafter\enablehyphA\fi}
\enablehyph{dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd}

These work and they do the job in that the content is wrapped onto a new line when reaching the margings, however, the content is not wrapped when there is content with spacing, for example:

\enablehyph{some other text here to wrap dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd}

Using either the custom macro or using \seqsplit the content is not wrapped onto a new line.

Is there a way I can wrap the content in the example scenario? Either a custom macro, a new command or away to apply across the whole document.

Can you explain why having “some other text here to wrap” inside \enablehyph would be necessary? — egreg, Jul 06 '21 at 14:04
Not in that case, I just want to the content to be within in the margins regards the length of the text — root92, Jul 07 '21 at 14:54

Steven B. Segletes · Answer 1 · 2021-07-07T16:40:07.250

0

Here, \enablehyphA is an intermediate macro that separates the input into space-separated chunks and passes each chunck onto the original macro, now named \enablehypAA.

\documentclass{article}
\begin{document}
\def\enablehyph#1{\iftrue\enablehyphA #1 \end\fi}
\def\enablehyphA#1 #2\fi{\fi\enablehyphAA#1\end
   \ifx\end#2\else\ \expandafter\enablehyphA#2\fi}
\def\enablehyphAA#1{\ifx\end#1%
   \else#1\penalty0\hskip0pt plus1pt\relax
   \expandafter\enablehyphAA\fi}
\enablehyph{This is a test dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd}
\end{document}

For the more demanding inputs (macros) that the OP mentions in a comment, this token cycle is perhaps better prepared to handle the issues:

\documentclass{article}
\usepackage{tokcycle}
\newcommand\enablehyph[1]{\tokcycle
  {\addcytoks{##1\penalty0\hskip0pt plus1pt\relax}}
  {\processtoks{##1}}
  {\addcytoks{##1}}
  {\addcytoks{##1}}
  {#1}\the\cytoks}
\begin{document}
\enablehyph{This is a test dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd}
\enablehyph{{\textasciitilde} ! @ # $ % {\textasciicircum} &amp; * ( ) {\textless} 
{\textgreater} { } [ ] _- + $\beta$ $\beta$ $\alpha$ $\alpha$ $\surd$ $\surd$ 
$\sum$ $\Pi$ $\Pi$ $\neq$ $\neq$ $\pi$ $\pi$ {\textasciitilde} ! @ # $ % 
{\textasciicircum} &amp; * ( ) { } [ ] _- + = \space unc mattis eget. 
Etiam vel tincidunt dolor. \space C:\textbackslash personal\textbackslash 
folder\textbackslash another folder\textbackslash space \textbackslash textcolor 
} 
\end{document}

edited Jul 07 '21 at 16:40

answered Jul 06 '21 at 13:09

Steven B. Segletes

237,551

This works thank you, however, if I use special characters in it though such as this:
\enablehyph{{\textasciitilde} ! @ # $ % {\textasciicircum} & * ( ) {\textless} {\textgreater} { } [ ] _- + $\beta$ $\beta$ $\alpha$ $\alpha$ $\surd$ $\surd$ $\sum$ $\Pi$ $\Pi$ $\neq$ $\neq$ $\pi$ $\pi$ {\textasciitilde} ! @ # $ % {\textasciicircum} & * ( ) { } [ ] _- + = \space unc mattis eget. Etiam vel tincidunt dolor. \space C:\textbackslash personal\textbackslash folder\textbackslash another folder\textbackslash space \textbackslash textcolor}
– root92 Jul 07 '21 at 14:50
I get errors because I think it's reading it in Math mode? – root92 Jul 07 '21 at 14:52
@DanMaia For one, your input has an underscore _ that is not in math mode. That will surely throw an error. – Steven B. Segletes Jul 07 '21 at 14:54
I used \_ and it still fails – root92 Jul 07 '21 at 15:21
@DanMaia Please see my edit. – Steven B. Segletes Jul 07 '21 at 16:40
Ah this is perfect but it doesnt work in latex 2018 – root92 Jul 08 '21 at 16:40
@DanMaia You can download tokcycle.tex and tokcycle.sty from https://ctan.org/pkg/tokcycle and place them in your localtexmf or, failing that, in your current working directory. – Steven B. Segletes Jul 08 '21 at 16:45
Perfect thank you, this works – root92 Jul 13 '21 at 08:33

score 0 · Accepted Answer · answered Jul 07 '21 at 15:43

I'm not sure what the idea is, because \enablehyph is meant to break anywhere.

For what it's worth, here's a version that respects spaces.

\documentclass{article}
\ExplSyntaxOn
\NewDocumentCommand{\breakanywhere}{m}
 {
  \danmaia_breakanywhere:n { #1 }
 }
\seq_new:N \l__danmaia_breakanywhere_seq
\cs_new_protected:Nn \danmaia_breakanywhere:n
 {
  \seq_set_split:Nnn \l__danmaia_breakanywhere_seq { ~ } { #1 }
  \seq_map_function:NN \l__danmaia_breakanywhere_seq __danmaia_breakanywhere_word:n
  \unskip\unskip
 }
\cs_new_protected:Nn __danmaia_breakanywhere_word:n
 {
  \tl_map_inline:nn { #1 } { ##1 \skip_horizontal:n {0pt plus 0.1pt} }
  \c_space_tl
 }
\ExplSyntaxOff
\begin{document}
\breakanywhere{
  some other text here to wrap 
  ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd%
  ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd%
  dddddddddddddddddddd
  some other text here to wrap 
  ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd%
  ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd%
  dddddddddddddddddddd
  some other text here to wrap 
  ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd%
  ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd%
  dddddddddddddddddddd
  some other text here to wrap%
}
\end{document}

However, the output is very dubious.

Custom Macro to Wrap Content with and without spacing

2 Answers2