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diff --git a/Master/texmf-doc/doc/english/FAQ-en/html/FAQ-errparnum.html b/Master/texmf-doc/doc/english/FAQ-en/html/FAQ-errparnum.html new file mode 100644 index 00000000000..acf76cb6dcb --- /dev/null +++ b/Master/texmf-doc/doc/english/FAQ-en/html/FAQ-errparnum.html @@ -0,0 +1,43 @@ +<head> +<title>UK TeX FAQ -- question label errparnum</title> +</head><body> +<h3>Illegal parameter number in definition</h3> +<p>The error message means what it says. In the simple case, you’ve +attempted a definition like: +<blockquote> +<pre> +\newcommand{\abc}{joy, oh #1!} +</pre> +</blockquote><p> +or (using TeX primitive definitions): +<blockquote> +<pre> +\def\abc{joy, oh #1!} +</pre> +</blockquote><p> +In either of the above, the definition uses an argument, but the +programmer did not tell (La)TeX, in advance, that she was going to. +The fix is simple — <code>\</code><code>newcommand{<code>\</code><code>abc</code>}[1]</code>, in the +LaTeX case, <code>\def\abc#1</code> in the basic TeX case. +<p>The more complicated case is exemplified by the attempted definition: +<blockquote> +<pre> +\newcommand{\abc}{joy, oh joy!% + \newcommand{\ghi}[1]{gloom, oh #1!}% +} +</pre> +</blockquote><p> +will also produce this error, as will its TeX primitive equivalent: +<blockquote> +<pre> +\def\abc{joy, oh joy!% + \def\ghi#1{gloom, oh #1!}% +} +</pre> +</blockquote><p> +This is because special care is needed when defining one macro within +the code of another macro. This is explained elsewhere, separately +for <a href="FAQ-ltxhash.html">LaTeX definitions</a> and for +<a href="FAQ-hash.html">TeX primitive definitions</a> +<p><p>This question on the Web: <a href="http://www.tex.ac.uk/cgi-bin/texfaq2html?label=errparnum">http://www.tex.ac.uk/cgi-bin/texfaq2html?label=errparnum</a> +</body> |