LaTeX Overwriting colored text

Question

In LaTeX, usually I use

default color {\color{blue}changed color.}

or

default color \textcolor{blue}{changed color.}

to change the color of a certain part of the text. Now I want to change the color of the whole sentence to a determined color, say red, as follows

I tried

\textcolor{red}{default color {\color{blue}changed color.}}

but it just has effect on the uncolored text:

For certain reasons, I need to keep "\textcolor{blue}{changed color.}" in the origial text. Is there any way of overwritting the colored text?

It is not clear, what is your problem. This works: \color{red} default color \textcolor{blue}{changed color}. default color again — Zarko, Dec 01 '20 at 07:31

David Carlisle · Answer 1 · 2020-12-01T08:34:59.270

6

It would be much better not to add the nested color or to add it as a locally defined command such as \mycolor that you could define to be a color, or nothing in different places, but if you really need this you can locally define \color to do nothing.

\documentclass{article}
\usepackage{color}
\begin{document}
\textcolor{red}{\renewcommand\color[2][]{}default color {\color{blue}changed color.}}
\end{document}

edited Dec 01 '20 at 08:34

answered Dec 01 '20 at 07:50

David Carlisle

757,742

@campa well as I say, I wouldn't do this at all or better to use a custom command, so hopefully if this form is used you have a pretty good idea what is in that scope and not accepting arbitrary input and need "just in case" safety. But yes it would be safer, I'll update.. – David Carlisle Dec 01 '20 at 08:34

Rmano · Accepted Answer · 2020-12-01T10:17:17.483

6

Building upon David Carlisle's answer, you can define a macro that will be even nestable (is that a word?) ---

\documentclass{article}
\usepackage{color}
\newcommand{\absolutetextcolor}[2]{%
    \textcolor{#1}{%
        \renewcommand\color[2][]{}%
    #2}%
}
\begin{document}
\absolutetextcolor{red}{default color {\color{blue}changed color.}}
\absolutetextcolor{red}{default color {\absolutetextcolor{blue}{changed color.}}}
\end{document}

edited Dec 01 '20 at 10:17

answered Dec 01 '20 at 08:26

Rmano

40,848
3
64
125

It works nicely! – ZHUANG Dec 01 '20 at 09:06
2

\renewcommand{\color}[2][]{\ignorespaces} would be better. – egreg Dec 01 '20 at 09:46
@egreg yes, you're 100% right – Rmano Dec 01 '20 at 10:16

score -2 · Answer 3 · answered Dec 01 '20 at 07:28

-2

\documentclass[10pt,a4paper]{article}
\usepackage{tikz}
\begin{document}
    default color {\color{blue}changed color.}\
    \textcolor{red}{default color {\color{blue}changed color.}}\
    \textcolor{red}{default color {changed color.}}
\end{document}

answered Dec 01 '20 at 07:28

js bibra

21,280

What's tikz for? – campa Dec 01 '20 at 07:47
3

This does not answer the question, the OP asks to keep the \color{blue} in the last line (but have the output red) – David Carlisle Dec 01 '20 at 07:50
@campa auto load color – js bibra Dec 01 '20 at 07:51
6

My point is that loading the whole tikz package just to use \color is a wee bit extreme. – campa Dec 01 '20 at 08:31

LaTeX Overwriting colored text

3 Answers3

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