[index] Index keywords as '<keyword>, keyword' for differentiation

Author: jensmaurer

source/macros.tex

@@ -224,7 +224,7 @@
 \newcommand{\term}[1]{\textit{#1}}
 \newcommand{\gterm}[1]{\GrammarStylex{#1}}
 \newcommand{\fakegrammarterm}[1]{\gterm{#1}}
-\newcommand{\keyword}[1]{\tcode{#1}\indextext{\idxcode{#1}}}                % macro length: 8
+\newcommand{\keyword}[1]{\tcode{#1}\indextext{\idxcode{#1}!keyword}}        % macro length: 8
 \newcommand{\grammarterm}[1]{\indexgram{\idxgram{#1}}\gterm{#1}}
 \newcommand{\grammartermnc}[1]{\indexgram{\idxgram{#1}}\gterm{#1\nocorr}}
 \newcommand{\regrammarterm}[1]{\textit{#1}}
@@ -597,7 +597,7 @@
  {
  \newcommand{\nontermdef}[1]{{\BnfNontermshape##1\itcorr}\indexgrammar{\idxgram{##1}}\textnormal{:}}
  \newcommand{\terminal}[1]{{\BnfTermshape ##1}}
- \renewcommand{\keyword}[1]{\terminal{##1}\indextext{\idxcode{##1}}}
+ \renewcommand{\keyword}[1]{\terminal{##1}\indextext{\idxcode{##1}!keyword}}
  \renewcommand{\exposid}[1]{\terminal{\textit{##1}}}
  \renewcommand{\placeholder}[1]{\textrm{\textit{##1}}}
  \newcommand{\descr}[1]{\textnormal{##1}}