Search results
- Dictionarycom·mand/kəˈmand/
verb
- 1. give an authoritative order: "a gruff voice commanded us to enter" Similar
- 2. dominate (a strategic position) from a superior height: "the two castles commanded the harbor" Similar
noun
- 1. an authoritative order: "it's unlikely they'll obey your commands" Similar
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A command defined using \def has to know exactly what its options are, and how they will be presented to it. However, a TeX command can be a bit clever and examine things other than its arguments. The way that optional commands are handled is to look at the next character in the stream and if it is [ then one version of the command is called, whereas if it isn't then another is called.
I'd like to create a new command \add that accepts 2 arguments, called entity and title. In other words, the command should look like this: \add{entity}{title}. The output should have the following form: \textit{entity} '{title}'. So if I, for example, type \add{article}{LaTeX} the result should be article 'LaTeX'. How can I do this?
This makes \foo a one-argument command that has regular and starred versions. The starred version is the expansion of \@foo while the nonstarred version is that of \@@foo . Using the @ sign in the auxiliary macros is a TeX convention which some authors embrace and some avoid.
Sep 16, 2021 · Rather than a simple \colorlet{newcolor}{existingcolor}, which will allow a new color to be defined in terms of existing color(s) (see Shades of colors, Defining a Color using another), it seems the OP wants a shortcut for a long color name.
On the other hand, it is slightly odd-looking and takes a bit of TeXpertise to understand a command definition that effectively takes one more invisible argument. So unless I need the subtly different semantics of leaving off the argument (because of brace groups), or really am worried about the efficiency, I tend to leave the argument in for clarity's sake.
Jan 8, 2013 · Then I define the new command \mygrid with an empty optional parameter. The first lines of this command (the call to \mygridset) changes the values of the keys via #1 then store the value of each key in a macro. The last lines draw the grid with these values.
Jul 14, 2016 · If you really need to know how the command is defined, it's usually beneficial to read through the command's source documentation (the .dtx file compiled to a .pdf file) if available, (otherwise read the source code, instead of the .sty file, which is a stripped-comment version) which usually contains explanation on how particular things are defined.
They have all in common, that they define a new command, but the precondition and behavior differs a bit: \renewcommand works only if the command is already defined: it's a redefinition \newcommand doesn't work if the command is already defined: so it's a completely new definition
Oct 9, 2015 · I am trying to define a new command to customize the item-based behavior within the LaTeX, as below: \newcommand{\myitemize}[2]{ \begin{description} \item[$\{#1}$]{#2} \end{description} } It is supposed to be called as: \myitemize{bullet}{matinking} But there is an error, as below, which does not let the document to be compiled:
First, we define the command \foo. It contains a nested command definition for parameters extension. Note it is declared using \neworrenewcommand, which defines a command if not defined, or redefine it if it is already defined.* Parameters with one dash are bound to the first command, while parameters with two dashes are bound to the second ...
