\begin{theindex} 
 \makeatletter\scan@allowedfalse
{\bfseries\hfil Symbols\hfil}\nopagebreak

  \item \verb*+c@classnum+\pfill \main{59}
  \item \verb*+\@empty+\pfill 53
  \item \verb*+\@rd+\pfill 136--138
  \item \verb*+\@rdend+\pfill 137, 139
  \item \verb*+\@tempdima+\pfill 37--41

  \indexspace
{\bfseries\hfil A\hfil}\nopagebreak

  \item \verb*+\addtocounter+\pfill 111
  \item \verb*+\addtotoks+\pfill 33, 48, \main{48}, 51, 52, 54, 58
  \item \verb*+\advance+\pfill 36, 39, 41, 100
  \item \verb*+\advancedate+\pfill 58, 80, 109, \main{109}
  \item \verb*+\advancemonth+\pfill 111, 113, \main{113}
  \item \verb*+\arabic+\pfill 105
  \item \verb*+\arrayrulewidth+\pfill 37, 39

  \indexspace
{\bfseries\hfil C\hfil}\nopagebreak

  \item \verb*+\c@ca@dpw+\pfill 35, 38, 40
  \item \verb*+\c@date+\pfill \main{102}, 133
  \item \verb*+\c@month+\pfill \main{103}, 106, 115, 124
  \item \verb*+\c@textdaycount+\pfill \main{97}, 100
  \item \verb*+\c@year+\pfill \main{104}, 119, 121
  \item \verb*+\ca@addmacro+\pfill 82, \main{82}, 91, 96
  \item \verb*+\ca@boxwidth+\pfill 13, 34, \main{34}, 35, 36, 41, 43
  \item \verb*+\ca@cheadtrue+\pfill 54
  \item \verb*+\ca@colhead+\pfill 19, \main{19}, 29, \main{49}, 51, 54
  \item \verb*+\ca@doaday+\pfill 52, 61, \main{61}
  \item \verb*+\ca@doaweek+\pfill 17, \main{17}, 33, 49, \main{49}, 
		51, 52, 58
  \item \verb*+\ca@doweeks+\pfill 18, \main{18}, 29, \main{29}, 33, 45
  \item \verb*+\ca@dpw+\pfill \main{14}
  \item \verb*+\ca@fdaytrue+\pfill 55
  \item \verb*+\ca@normbs+\pfill 60, \main{60}, 69
  \item \verb*+\ca@numwks+\pfill \main{15}
  \item \verb*+\ca@wknum+\pfill \main{16}
  \item \verb*+\calboxdepth+\pfill \usage{4}, 11, 62
  \item \verb*+\calday+\pfill \usage{2}, \main{49}, 50, 63
  \item {\ttfamily calendar} (environment)\pfill \usage{1}
  \item {\ttfamily calendar} (environment) \pfill \main{21}
  \item \verb*+\calprintclass+\pfill 5, \main{5}, 66
  \item \verb*+\calprintdate+\pfill 1, \main{1}, 66
  \item \verb*+\caltext+\pfill \usage{4}, 96, \main{96}, 99, 101
  \item \verb*+\caltextnext+\pfill \usage{4}, \main{97}, 100
  \item \verb*+\caltexton+\pfill \usage{4}, \main{97}, 98
  \item \verb*+\calwidth+\pfill \usage{5}, 12, 34
  \item \verb*+\classday+\pfill \usage{2}, \main{92}, 93
  \item \verb*+\classdayfalse+\pfill 94
  \item \verb*+\classdaytrue+\pfill 93
  \item \verb*+\curdate+\pfill 64, 74, 105, \main{105}

  \indexspace
{\bfseries\hfil E\hfil}\nopagebreak

  \item \verb*+\endcalendar+\pfill 13, \main{28}
  \item environments:\efill 
 \subitem \texttt {calendar}\pfill \main{6}
    \subitem {\ttfamily calendar}\pfill \usage{1}

  \indexspace
{\bfseries\hfil I\hfil}\nopagebreak

  \item \verb*+\ifca@chead+\pfill \main{19}, 20, 29
  \item \verb*+\ifca@fday+\pfill 51, 57, \main{57}
  \item \verb*+\ifclassday+\pfill 65, 66, 75, 92, \main{92}
  \item \verb*+\ifleap+\pfill 117, \main{117}, 124
  \item \verb*+\ifnewmonth+\pfill 2, 112, \main{112}

  \indexspace
{\bfseries\hfil L\hfil}\nopagebreak

  \item \verb*+\leapfalse+\pfill 122
  \item \verb*+\leaptrue+\pfill 121

  \indexspace
{\bfseries\hfil M\hfil}\nopagebreak

  \item \verb*+\monthlength+\pfill 110, 111, 123, \main{123}
  \item \verb*+\monthname+\pfill 2, 106, \main{106}

  \indexspace
{\bfseries\hfil N\hfil}\nopagebreak

  \item \verb*+\newmonthfalse+\pfill 79
  \item \verb*+\newmonthtrue+\pfill 112, 114, 132
  \item \verb*+\noclassday+\pfill \usage{2}, \main{92}, 94

  \indexspace
{\bfseries\hfil O\hfil}\nopagebreak

  \item \verb*+\options+\pfill \usage{4}, 91, \main{91}
  \item \verb*+\ordinal+\pfill 133, 134, \main{134}
  \item \verb*+\ordinaldate+\pfill 2, 3, 133, \main{133}

  \indexspace
{\bfseries\hfil S\hfil}\nopagebreak

  \item \verb*+\setdate+\pfill 24, 127, \main{127}
  \item \verb*+\setdate@+\pfill 127, 128
  \item \verb*+\setleap+\pfill 116, 118, \main{118}, 132
  \item \verb*+\skipday+\pfill \usage{1}, 58, \main{58}

  \indexspace
{\bfseries\hfil T\hfil}\nopagebreak

  \item \verb*+\theca@dpw+\pfill 43
  \item \verb*+\theclassnum+\pfill 5, 65, 75
  \item \verb*+\thedate+\pfill 110
  \item \verb*+\thetextdaycount+\pfill 101

  \indexspace
{\bfseries\hfil W\hfil}\nopagebreak

  \item \verb*+\weeklytext+\pfill \usage{3}, 73, 95, \main{95}

 \end{theindex}