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1 @node Calendar/Diary, Sorting, Reading Mail, Top
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2 @section Calendar Mode and the Diary
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3 @cindex calendar
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4 @findex calendar
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5
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6 Emacs provides the functions of a desk calendar, with a diary of
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7 planned or past events. To enter the calendar, type @kbd{M-x calendar};
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8 this displays a three-month calendar centered on the current month, with
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9 point on the current date. With a numeric argument, as in @kbd{C-u M-x
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10 calendar}, it prompts you for the month and year to be the center of the
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11 three-month calendar. The calendar uses its own buffer, whose major
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12 mode is Calendar mode.
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13
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14 @kbd{Button2} in the calendar brings up a menu of operations on a
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15 particular date; @kbd{Buttons3} brings up a menu of commonly used
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16 calendar features that are independent of any particular date. To exit
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17 the calendar, type @kbd{q}. @xref{Calendar, Customizing the Calendar
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18 and Diary,, elisp, The Emacs Lisp Reference Manual}, for customization
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19 information about the calendar and diary.
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20
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21 @menu
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22 * Calendar Motion:: Moving through the calendar; selecting a date.
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23 * Scroll Calendar:: Bringing earlier or later months onto the screen.
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24 * Mark and Region:: Remembering dates, the mark ring.
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25 * General Calendar:: Exiting or recomputing the calendar.
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26 * LaTeX Calendar:: Print a calendar using LaTeX.
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27 * Holidays:: Displaying dates of holidays.
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28 * Sunrise/Sunset:: Displaying local times of sunrise and sunset.
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29 * Lunar Phases:: Displaying phases of the moon.
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30 * Other Calendars:: Converting dates to other calendar systems.
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31 * Diary:: Displaying events from your diary.
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32 * Calendar Customization:: Altering the behavior of the features above.
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33 @end menu
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34
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35 @node Calendar Motion, Scroll Calendar, Calendar/Diary, Calendar/Diary
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36 @subsection Movement in the Calendar
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37
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38 @cindex moving inside the calendar
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39 Calendar mode lets you move through the calendar in logical units of
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40 time such as days, weeks, months, and years. If you move outside the
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41 three months originally displayed, the calendar display ``scrolls''
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42 automatically through time to make the selected date visible. Moving to
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43 a date lets you view its holidays or diary entries, or convert it to other
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44 calendars; moving longer time periods is also useful simply to scroll the
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45 calendar.
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46
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47 @menu
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48 * Calendar Unit Motion:: Moving by days, weeks, months, and years.
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49 * Move to Beginning or End:: Moving to start/end of weeks, months, and years.
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50 * Specified Dates:: Moving to the current date or another
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51 specific date.
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52 @end menu
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53
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54 @node Calendar Unit Motion, Move to Beginning or End, Calendar Motion, Calendar Motion
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55 @subsubsection Motion by Integral Days, Weeks, Months, Years
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56
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57 The commands for movement in the calendar buffer parallel the
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58 commands for movement in text. You can move forward and backward by
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59 days, weeks, months, and years.
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60
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61 @table @kbd
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62 @item C-f
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63 Move point one day forward (@code{calendar-forward-day}).
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64 @item C-b
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65 Move point one day backward (@code{calendar-backward-day}).
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66 @item C-n
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67 Move point one week forward (@code{calendar-forward-week}).
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68 @item C-p
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69 Move point one week backward (@code{calendar-backward-week}).
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70 @item M-@}
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71 Move point one month forward (@code{calendar-forward-month}).
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72 @item M-@{
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73 Move point one month backward (@code{calendar-backward-month}).
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74 @item C-x ]
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75 Move point one year forward (@code{calendar-forward-year}).
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76 @item C-x [
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77 Move point one year backward (@code{calendar-backward-year}).
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78 @end table
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79
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80 @kindex C-f @r{(Calendar mode)}
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81 @findex calendar-forward-day
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82 @kindex C-b @r{(Calendar mode)}
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83 @findex calendar-backward-day
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84 @kindex C-n @r{(Calendar mode)}
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85 @findex calendar-forward-week
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86 @kindex C-p @r{(Calendar mode)}
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87 @findex calendar-backward-week
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88 The day and week commands are natural analogues of the usual Emacs
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89 commands for moving by characters and by lines. Just as @kbd{C-n}
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90 usually moves to the same column in the following line, in Calendar
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91 mode it moves to the same day in the following week. And @kbd{C-p}
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92 moves to the same day in the previous week.
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93
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94 The arrow keys are equivalent to @kbd{C-f}, @kbd{C-b}, @kbd{C-n} and
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95 @kbd{C-p}, just as they normally are in other modes.
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96
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97 @kindex M-@} @r{(Calendar mode)}
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98 @findex calendar-forward-month
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99 @kindex M-@{ @r{(Calendar mode)}
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100 @findex calendar-backward-month
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101 @kindex C-x ] @r{(Calendar mode)}
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102 @findex calendar-forward-year
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103 @kindex C-x [ @r{(Calendar mode)}
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104 @findex calendar-forward-year
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105 The commands for motion by months and years work like those for
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106 weeks, but move a larger distance. The month commands @kbd{M-@}} and
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107 @kbd{M-@{} move forward or backward by an entire month's time. The
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108 year commands @kbd{C-x ]} and @w{@kbd{C-x [}} move forward or backward a
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109 whole year.
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110
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111 The easiest way to remember these commands is to consider months and
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112 years analogous to paragraphs and pages of text, respectively. But the
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113 commands themselves are not quite analogous. The ordinary Emacs paragraph
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114 commands move to the beginning or end of a paragraph, whereas these month
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115 and year commands move by an entire month or an entire year, which usually
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116 involves skipping across the end of a month or year.
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117
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118 All these commands accept a numeric argument as a repeat count.
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119 For convenience, the digit keys and the minus sign specify numeric
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120 arguments in Calendar mode even without the Meta modifier. For example,
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121 @kbd{100 C-f} moves point 100 days forward from its present location.
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122
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123 @node Move to Beginning or End, Specified Dates, Calendar Unit Motion, Calendar Motion
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124 @subsubsection Beginning or End of Week, Month or Year
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125
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298
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126 A week (or month, or year) is not just a quantity of days; we think of
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127 weeks (months, years) as starting on particular dates. So Calendar mode
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128 provides commands to move to the beginning or end of a week, month or
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129 year:
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130
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131 @table @kbd
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132 @kindex C-a @r{(Calendar mode)}
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133 @findex calendar-beginning-of-week
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134 @item C-a
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135 Move point to start of week (@code{calendar-beginning-of-week}).
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136 @kindex C-e @r{(Calendar mode)}
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137 @findex calendar-end-of-week
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138 @item C-e
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139 Move point to end of week (@code{calendar-end-of-week}).
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140 @kindex M-a @r{(Calendar mode)}
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141 @findex calendar-beginning-of-month
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142 @item M-a
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143 Move point to start of month (@code{calendar-beginning-of-month}).
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144 @kindex M-e @r{(Calendar mode)}
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145 @findex calendar-end-of-month
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146 @item M-e
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147 Move point to end of month (@code{calendar-end-of-month}).
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148 @kindex M-< @r{(Calendar mode)}
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149 @findex calendar-beginning-of-year
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150 @item M-<
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151 Move point to start of year (@code{calendar-beginning-of-year}).
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152 @kindex M-> @r{(Calendar mode)}
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153 @findex calendar-end-of-year
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154 @item M->
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155 Move point to end of year (@code{calendar-end-of-year}).
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156 @end table
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157
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158 These commands also take numeric arguments as repeat counts, with the
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159 repeat count indicating how many weeks, months, or years to move
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160 backward or forward.
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161
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298
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162 @vindex calendar-week-start-day
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163 @cindex weeks, which day they start on
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164 @cindex calendar, first day of week
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165 By default, weeks begin on Sunday. To make them begin on Monday
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166 instead, set the variable @code{calendar-week-start-day} to 1.
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167
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168 @node Specified Dates,,Move to Beginning or End, Calendar Motion
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169 @subsubsection Particular Dates
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170
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298
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171 Calendar mode provides commands for moving to a particular date
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172 specified in various ways.
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173
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174 @table @kbd
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175 @item g d
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176 Move point to specified date (@code{calendar-goto-date}).
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177 @item o
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178 Center calendar around specified month (@code{calendar-other-month}).
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179 @item .
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180 Move point to today's date (@code{calendar-goto-today}).
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181 @end table
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182
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183 @kindex g d @r{(Calendar mode)}
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184 @findex calendar-goto-date
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185 @kbd{g d} (@code{calendar-goto-date}) prompts for a year, a month, and a day
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186 of the month, and then moves to that date. Because the calendar includes all
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187 dates from the beginning of the current era, you must type the year in its
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188 entirety; that is, type @samp{1990}, not @samp{90}.
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189
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190 @kindex o @r{(Calendar mode)}
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191 @findex calendar-other-month
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192 @kbd{o} (@code{calendar-other-month}) prompts for a month and year,
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193 then centers the three-month calendar around that month.
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194
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195 @kindex . @r{(Calendar mode)}
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196 @findex calendar-goto-today
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316
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197 You can return to today's date with @kbd{.}@:
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198 (@code{calendar-goto-today}).
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199
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200 @node Scroll Calendar, Mark and Region, Calendar Motion, Calendar/Diary
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201 @subsection Scrolling the Calendar through Time
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202
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298
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203 @cindex scrolling in the calendar
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204 The calendar display scrolls automatically through time when you move out
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205 of the visible portion. You can also scroll it manually. Imagine that the
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206 calendar window contains a long strip of paper with the months on it.
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207 Scrolling it means moving the strip so that new months become visible in
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208 the window.
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209
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210 @table @kbd
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211 @item C-x <
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212 Scroll calendar one month forward (@code{scroll-calendar-left}).
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213 @item C-x >
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214 Scroll calendar one month backward (@code{scroll-calendar-right}).
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215 @item C-v
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216 @itemx @key{NEXT}
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217 Scroll calendar three months forward
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218 (@code{scroll-calendar-left-three-months}).
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219 @item M-v
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220 @itemx @key{PRIOR}
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221 Scroll calendar three months backward
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222 (@code{scroll-calendar-right-three-months}).
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223 @end table
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224
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225 @kindex C-x < @r{(Calendar mode)}
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226 @findex scroll-calendar-left
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227 @kindex C-x > @r{(Calendar mode)}
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228 @findex scroll-calendar-right
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229 The most basic calendar scroll commands scroll by one month at a
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230 time. This means that there are two months of overlap between the
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231 display before the command and the display after. @kbd{C-x <} scrolls
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232 the calendar contents one month to the left; that is, it moves the
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233 display forward in time. @kbd{C-x >} scrolls the contents to the
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234 right, which moves backwards in time.
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235
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236 @kindex C-v @r{(Calendar mode)}
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237 @findex scroll-calendar-left-three-months
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238 @kindex M-v @r{(Calendar mode)}
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239 @findex scroll-calendar-right-three-months
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240 The commands @kbd{C-v} and @kbd{M-v} scroll the calendar by an entire
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241 ``screenful''---three months---in analogy with the usual meaning of
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242 these commands. @kbd{C-v} makes later dates visible and @kbd{M-v} makes
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243 earlier dates visible. These commands take a numeric argument as a
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244 repeat count; in particular, since @kbd{C-u} multiplies the next command
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245 by four, typing @kbd{C-u C-v} scrolls the calendar forward by a year and
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246 typing @kbd{C-u M-v} scrolls the calendar backward by a year.
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247
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248 The function keys @key{NEXT} and @key{PRIOR} are equivalent to
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249 @kbd{C-v} and @kbd{M-v}, just as they are in other modes.
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250
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251
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252 @node Mark and Region, General Calendar, Scroll Calendar, Calendar/Diary
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253 @subsection The Mark and the Region
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254
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255 The concept of the mark applies to the calendar just as to any other
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256 buffer, but it marks a @emph{date}, not a @emph{position} in the buffer.
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257 The region consists of the days between the mark and point (including
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258 the starting and stopping dates).
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259
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260 @table @kbd
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261 @item C-SPC
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262 Set the mark to today's date (@code{calendar-set-mark}).
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263 @item C-@@
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264 The same.
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265 @item C-x C-x
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266 Interchange mark and point (@code{calendar-exchange-point-and-mark}).
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267 @item M-=
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268 Display the number of days in the current region
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269 (@code{calendar-count-days-region}).
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270 @end table
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271
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272 @kindex C-@@ @r{(Calendar mode)}
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273 @kindex C-SPC @r{(Calendar mode)}
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274 @findex calendar-set-mark
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298
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275 @kindex C-x C-x @r{(Calendar mode)}
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276 @findex calendar-exchange-point-and-mark
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277 You set the mark in the calendar, as in any other buffer, by using @kbd{C-@@}
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278 or @kbd{C-SPC} (@code{calendar-set-mark}). You return to the marked date
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279 with the command @kbd{C-x C-x} (@code{calendar-exchange-point-and-mark})
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280 which puts the mark where point was and point where mark was. The calendar
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281 is scrolled as necessary, if the marked date was not visible on the
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282 screen. This does not change the extent of the region.
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283
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284 @kindex M-= @r{(Calendar mode)}
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285 @findex calendar-count-days-region
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286 To determine the number of days in the region, type @kbd{M-=}
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287 (@code{calendar-count-days-region}). The numbers of days printed is
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288 @emph{inclusive}; that is, it includes the days specified by mark and
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289 point.
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290
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291 @cindex mark ring
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292 The main use of the mark in the calendar is to remember dates that you may
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293 want to go back to. To make this feature more useful, the mark ring
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294 (@pxref{Mark Ring}) operates exactly as in other buffers: Emacs remembers
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295 16 previous locations of the mark. To return to a marked date, type @kbd{C-u
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296 C-SPC} (or @kbd{C-u C-@@}); this is the command @code{calendar-set-mark} given
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297 a numeric argument. It moves point to where the mark was, restores the mark
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298 from the ring of former marks, and stores the previous point at the end of
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299 the mark ring. So, repeated use of this command moves point through all
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300 the old marks on the ring, one by one.
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301
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298
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302 @node General Calendar, LaTeX Calendar, Mark and Region, Calendar/Diary
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303 @subsection Miscellaneous Calendar Commands
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304
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305 @table @kbd
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306 @item p d
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307 Display day-in-year (@code{calendar-print-day-of-year}).
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308 @item ?
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309 Briefly describe calendar commands (@code{describe-calendar-mode}).
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310 @item C-c C-l
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311 Regenerate the calendar window (@code{redraw-calendar}).
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312 @item SPC
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313 Scroll the next window (@code{scroll-other-window}).
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314 @item q
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315 Exit from calendar (@code{exit-calendar}).
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316 @end table
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317
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318 @kindex p d @r{(Calendar mode)}
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319 @cindex day of year
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320 @findex calendar-print-day-of-year
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321 If you want to know how many days have elapsed since the start of
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322 the year, or the number of days remaining in the year, type the @kbd{p d}
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323 command (@code{calendar-print-day-of-year}). This displays both
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324 of those numbers in the echo area.
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325
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326 @kindex ? @r{(Calendar mode)}
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327 @findex describe-calendar-mode
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328 To display a brief description of the calendar commands, type @kbd{?}
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329 (@code{describe-calendar-mode}). For a fuller description, type @kbd{C-h m}.
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330
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331 @kindex SPC @r{(Calendar mode)}
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332 @findex scroll-other-window
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333 You can use @kbd{SPC} (@code{scroll-other-window}) to scroll the other
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334 window. This is handy when you display a list of holidays or diary entries
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335 in another window.
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336
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337 @kindex C-c C-l @r{(Calendar mode)}
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338 @findex redraw-calendar
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339 If the calendar window text gets corrupted, type @kbd{C-c C-l}
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340 (@code{redraw-calendar}) to redraw it. (This can only happen if you use
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341 non-Calendar-mode editing commands.)
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342
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343 @kindex SPC @r{(Calendar mode)}
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344 In Calendar mode, you can use @kbd{SPC} (@code{scroll-other-window})
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345 to scroll the other window. This is handy when you display a list of
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346 holidays or diary entries in another window.
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347
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348 @kindex q @r{(Calendar mode)}
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349 @findex exit-calendar
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350 To exit from the calendar, type @kbd{q} (@code{exit-calendar}). This
|
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298
|
351 buries all buffers related to the calendar, selecting other buffers.
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|
352 (If a frame contains a dedicated calendar window, exiting from the
|
|
|
353 calendar iconifies that frame.)
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|
354
|
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355 @node LaTeX Calendar, Holidays, General Calendar, Calendar/Diary
|
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356 @section LaTeX Calendar
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|
357 @cindex calendar and La@TeX{}
|
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358
|
|
|
359 The Calendar La@TeX{} commands produce a buffer of La@TeX{} code that
|
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|
360 prints as a calendar. Depending on the command you use, the printed
|
|
|
361 calendar covers the day, week, month or year that point is in.
|
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0
|
362
|
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298
|
363 @kindex t @r{(Calendar mode)}
|
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|
364 @table @kbd
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|
365 @item t m
|
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|
366 Generate a one-month calendar (@code{cal-tex-cursor-month}).
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367 @item t M
|
|
|
368 Generate a sideways-printing one-month calendar
|
|
|
369 (@code{cal-tex-cursor-month-landscape}).
|
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|
370 @item t d
|
|
|
371 Generate a one-day calendar
|
|
|
372 (@code{cal-tex-cursor-day}).
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|
373 @item t w 1
|
|
|
374 Generate a one-page calendar for one week
|
|
|
375 (@code{cal-tex-cursor-week}).
|
|
|
376 @item t w 2
|
|
|
377 Generate a two-page calendar for one week
|
|
|
378 (@code{cal-tex-cursor-week2}).
|
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|
379 @item t w 3
|
|
|
380 Generate an ISO-style calendar for one week
|
|
|
381 (@code{cal-tex-cursor-week-iso}).
|
|
|
382 @item t w 4
|
|
|
383 Generate a calendar for one Monday-starting week
|
|
|
384 (@code{cal-tex-cursor-week-monday}).
|
|
|
385 @item t f w
|
|
|
386 Generate a Filofax-style two-weeks-at-a-glance calendar
|
|
|
387 (@code{cal-tex-cursor-filofax-2week}).
|
|
|
388 @item t f W
|
|
|
389 Generate a Filofax-style one-week-at-a-glance calendar
|
|
|
390 (@code{cal-tex-cursor-filofax-week}).
|
|
|
391 @item t y
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|
392 Generate a calendar for one year
|
|
|
393 (@code{cal-tex-cursor-year}).
|
|
|
394 @item t Y
|
|
|
395 Generate a sideways-printing calendar for one year
|
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316
|
396 (@code{cal-tex-cursor-year-landscape}).
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298
|
397 @item t f y
|
|
|
398 Generate a Filofax-style calendar for one year
|
|
|
399 (@code{cal-tex-cursor-filofax-year}).
|
|
|
400 @end table
|
|
|
401
|
|
|
402 Some of these commands print the calendar sideways (in ``landscape
|
|
|
403 mode''), so it can be wider than it is long. Some of them use Filofax
|
|
|
404 paper size (3.75in x 6.75in). All of these commands accept a prefix
|
|
|
405 argument which specifies how many days, weeks, months or years to print
|
|
|
406 (starting always with the selected one).
|
|
|
407
|
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408 If the variable @code{cal-tex-holidays} is non-@code{nil} (the
|
|
|
409 default), then the printed calendars show the holidays in
|
|
|
410 @code{calendar-holidays}. If the variable @code{cal-tex-diary} is
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|
411 non-@code{nil} (the default is @code{nil}), diary entries are included
|
|
|
412 also (in weekly and monthly calendars only).
|
|
|
413
|
|
|
414 @node Holidays, Sunrise/Sunset, LaTeX Calendar, Calendar/Diary
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0
|
415 @subsection Holidays
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|
416 @cindex holidays
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417
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298
|
418 The Emacs calendar knows about all major and many minor holidays,
|
|
|
419 and can display them.
|
|
0
|
420
|
|
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421 @table @kbd
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|
|
422 @item h
|
|
298
|
423 Display holidays for the selected date
|
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0
|
424 (@code{calendar-cursor-holidays}).
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|
298
|
425 @item Button2 Holidays
|
|
|
426 Display any holidays for the date you click on.
|
|
0
|
427 @item x
|
|
|
428 Mark holidays in the calendar window (@code{mark-calendar-holidays}).
|
|
|
429 @item u
|
|
|
430 Unmark calendar window (@code{calendar-unmark}).
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|
|
431 @item a
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|
|
432 List all holidays for the displayed three months in another window
|
|
|
433 (@code{list-calendar-holidays}).
|
|
|
434 @item M-x holidays
|
|
|
435 List all holidays for three months around today's date in another
|
|
|
436 window.
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|
298
|
437 @item M-x list-holidays
|
|
|
438 List holidays in another window for a specified range of years.
|
|
0
|
439 @end table
|
|
|
440
|
|
298
|
441 @kindex h @r{(Calendar mode)}
|
|
0
|
442 @findex calendar-cursor-holidays
|
|
|
443 To see if any holidays fall on a given date, position point on that
|
|
298
|
444 date in the calendar window and use the @kbd{h} command. Alternatively,
|
|
|
445 click on that date with @kbd{Button2} and then choose @kbd{Holidays}
|
|
|
446 from the menu that appears. Either way, this displays the holidays for
|
|
|
447 that date, in the echo area if they fit there, otherwise in a separate
|
|
|
448 window.
|
|
0
|
449
|
|
298
|
450 @kindex x @r{(Calendar mode)}
|
|
0
|
451 @findex mark-calendar-holidays
|
|
298
|
452 @kindex u @r{(Calendar mode)}
|
|
0
|
453 @findex calendar-unmark
|
|
298
|
454 To view the distribution of holidays for all the dates shown in the
|
|
|
455 calendar, use the @kbd{x} command. This displays the dates that are
|
|
|
456 holidays in a different face (or places a @samp{*} after these dates, if
|
|
|
457 display with multiple faces is not available). The command applies both
|
|
|
458 to the currently visible months and to other months that subsequently
|
|
|
459 become visible by scrolling. To turn marking off and erase the current
|
|
|
460 marks, type @kbd{u}, which also erases any diary marks (@pxref{Diary}).
|
|
0
|
461
|
|
298
|
462 @kindex a @r{(Calendar mode)}
|
|
0
|
463 @findex list-calendar-holidays
|
|
|
464 To get even more detailed information, use the @kbd{a} command, which
|
|
|
465 displays a separate buffer containing a list of all holidays in the
|
|
298
|
466 current three-month range. You can use @key{SPC} in the calendar window
|
|
|
467 to scroll that list.
|
|
0
|
468
|
|
|
469 @findex holidays
|
|
298
|
470 The command @kbd{M-x holidays} displays the list of holidays for the
|
|
|
471 current month and the preceding and succeeding months; this works even
|
|
|
472 if you don't have a calendar window. If you want the list of holidays
|
|
|
473 centered around a different month, use @kbd{C-u M-x holidays}, which
|
|
|
474 prompts for the month and year.
|
|
|
475
|
|
|
476 The holidays known to Emacs include United States holidays and the
|
|
|
477 major Christian, Jewish, and Islamic holidays; also the solstices and
|
|
|
478 equinoxes.
|
|
0
|
479
|
|
298
|
480 @findex list-holidays
|
|
|
481 The command @kbd{M-x list-holidays} displays the list of holidays for
|
|
|
482 a range of years. This function asks you for the starting and stopping
|
|
316
|
483 years, and allows you to choose all the holidays or one of several
|
|
298
|
484 categories of holidays. You can use this command even if you don't have
|
|
|
485 a calendar window.
|
|
|
486
|
|
|
487 The dates used by Emacs for holidays are based on @emph{current
|
|
|
488 practice}, not historical fact. Historically, for instance, the start
|
|
|
489 of daylight savings time and even its existence have varied from year to
|
|
|
490 year, but present United States law mandates that daylight savings time
|
|
|
491 begins on the first Sunday in April. When the daylight savings rules
|
|
|
492 are set up for the United States, Emacs always uses the present
|
|
|
493 definition, even though it is wrong for some prior years.
|
|
0
|
494
|
|
|
495 @node Sunrise/Sunset, Lunar Phases, Holidays, Calendar/Diary
|
|
|
496 @subsection Times of Sunrise and Sunset
|
|
298
|
497 @cindex sunrise and sunset
|
|
0
|
498
|
|
298
|
499 Special calendar commands can tell you, to within a minute or two, the
|
|
|
500 times of sunrise and sunset for any date.
|
|
0
|
501
|
|
|
502 @table @kbd
|
|
|
503 @item S
|
|
298
|
504 Display times of sunrise and sunset for the selected date
|
|
0
|
505 (@code{calendar-sunrise-sunset}).
|
|
298
|
506 @item Button2 Sunrise/Sunset
|
|
|
507 Display times of sunrise and sunset for the date you click on.
|
|
0
|
508 @item M-x sunrise-sunset
|
|
|
509 Display times of sunrise and sunset for today's date.
|
|
298
|
510 @item C-u M-x sunrise-sunset
|
|
|
511 Display times of sunrise and sunset for a specified date.
|
|
0
|
512 @end table
|
|
|
513
|
|
298
|
514 @kindex S @r{(Calendar mode)}
|
|
0
|
515 @findex calendar-sunrise-sunset
|
|
|
516 @findex sunrise-sunset
|
|
298
|
517 Within the calendar, to display the @emph{local times} of sunrise and
|
|
|
518 sunset in the echo area, move point to the date you want, and type
|
|
|
519 @kbd{S}. Alternatively, click @kbd{Button2} on the date, then choose
|
|
|
520 @kbd{Sunrise/Sunset} from the menu that appears. The command @kbd{M-x
|
|
|
521 sunrise-sunset} is available outside the calendar to display this
|
|
|
522 information for today's date or a specified date. To specify a date
|
|
|
523 other than today, use @kbd{C-u M-x sunrise-sunset}, which prompts for
|
|
|
524 the year, month, and day.
|
|
0
|
525
|
|
298
|
526 You can display the times of sunrise and sunset for any location and
|
|
|
527 any date with @kbd{C-u C-u M-x sunrise-sunset}. This asks you for a
|
|
|
528 longitude, latitude, number of minutes difference from Coordinated
|
|
|
529 Universal Time, and date, and then tells you the times of sunrise and
|
|
|
530 sunset for that location on that date.
|
|
0
|
531
|
|
|
532 Because the times of sunrise and sunset depend on the location on
|
|
|
533 earth, you need to tell Emacs your latitude, longitude, and location
|
|
298
|
534 name before using these commands. Here is an example of what to set:
|
|
0
|
535
|
|
|
536 @vindex calendar-location-name
|
|
|
537 @vindex calendar-longitude
|
|
|
538 @vindex calendar-latitude
|
|
|
539 @example
|
|
|
540 (setq calendar-latitude 40.1)
|
|
|
541 (setq calendar-longitude -88.2)
|
|
|
542 (setq calendar-location-name "Urbana, IL")
|
|
|
543 @end example
|
|
|
544
|
|
|
545 @noindent
|
|
|
546 Use one decimal place in the values of @code{calendar-latitude} and
|
|
|
547 @code{calendar-longitude}.
|
|
|
548
|
|
|
549 Your time zone also affects the local time of sunrise and sunset.
|
|
298
|
550 Emacs usually gets time zone information from the operating system, but
|
|
|
551 if these values are not what you want (or if the operating system does
|
|
|
552 not supply them), you must set them yourself. Here is an example:
|
|
0
|
553
|
|
|
554 @vindex calendar-time-zone
|
|
|
555 @vindex calendar-standard-time-zone-name
|
|
|
556 @vindex calendar-daylight-time-zone-name
|
|
|
557 @example
|
|
|
558 (setq calendar-time-zone -360)
|
|
|
559 (setq calendar-standard-time-zone-name "CST")
|
|
|
560 (setq calendar-daylight-time-zone-name "CDT")
|
|
|
561 @end example
|
|
|
562
|
|
|
563 @noindent
|
|
|
564 The value of @code{calendar-time-zone} is the number of minutes
|
|
298
|
565 difference between your local standard time and Coordinated Universal
|
|
|
566 Time (Greenwich time). The values of
|
|
|
567 @code{calendar-standard-time-zone-name} and
|
|
|
568 @code{calendar-daylight-time-zone-name} are the abbreviations used in
|
|
|
569 your time zone. Emacs displays the times of sunrise and sunset
|
|
|
570 @emph{corrected for daylight savings time}. @xref{Daylight Savings},
|
|
|
571 for how daylight savings time is determined.
|
|
0
|
572
|
|
298
|
573 As a user, you might find it convenient to set the calendar location
|
|
|
574 variables for your usual physical location in your @file{.emacs} file.
|
|
|
575 And when you install Emacs on a machine, you can create a
|
|
|
576 @file{default.el} file which sets them properly for the typical location
|
|
|
577 of most users of that machine. @xref{Init File}.
|
|
0
|
578
|
|
|
579 @node Lunar Phases, Other Calendars, Sunrise/Sunset, Calendar/Diary
|
|
|
580 @subsection Phases of the Moon
|
|
|
581 @cindex phases of the moon
|
|
|
582 @cindex moon, phases of
|
|
|
583
|
|
298
|
584 These calendar commands display the dates and times of the phases of
|
|
|
585 the moon (new moon, first quarter, full moon, last quarter). This
|
|
|
586 feature is useful for debugging problems that ``depend on the phase of
|
|
|
587 the moon.''
|
|
0
|
588
|
|
|
589 @table @kbd
|
|
|
590 @item M
|
|
298
|
591 Display the dates and times for all the quarters of the moon for the
|
|
|
592 three-month period shown (@code{calendar-phases-of-moon}).
|
|
0
|
593 @item M-x phases-of-moon
|
|
298
|
594 Display dates and times of the quarters of the moon for three months around
|
|
|
595 today's date.
|
|
0
|
596 @end table
|
|
|
597
|
|
298
|
598 @kindex M @r{(Calendar mode)}
|
|
0
|
599 @findex calendar-phases-of-moon
|
|
298
|
600 Within the calendar, use the @kbd{M} command to display a separate
|
|
|
601 buffer of the phases of the moon for the current three-month range. The
|
|
|
602 dates and times listed are accurate to within a few minutes.
|
|
0
|
603
|
|
|
604 @findex phases-of-moon
|
|
298
|
605 Outside the calendar, use the command @kbd{M-x phases-of-moon} to
|
|
|
606 display the list of the phases of the moon for the current month and the
|
|
|
607 preceding and succeeding months. For information about a different
|
|
|
608 month, use @kbd{C-u M-x phases-of-moon}, which prompts for the month and
|
|
|
609 year.
|
|
|
610
|
|
0
|
611 The dates and times given for the phases of the moon are given in
|
|
|
612 local time (corrected for daylight savings, when appropriate); but if
|
|
298
|
613 the variable @code{calendar-time-zone} is void, Coordinated Universal
|
|
|
614 Time (the Greenwich time zone) is used. @xref{Daylight Savings}.
|
|
0
|
615
|
|
298
|
616 @node Other Calendars, Calendar Systems, Lunar Phases, Calendar/Diary
|
|
|
617 @subsection Conversion To and From Other Calendars
|
|
0
|
618
|
|
|
619 @cindex Gregorian calendar
|
|
|
620 The Emacs calendar displayed is @emph{always} the Gregorian calendar,
|
|
|
621 sometimes called the ``new style'' calendar, which is used in most of
|
|
|
622 the world today. However, this calendar did not exist before the
|
|
|
623 sixteenth century and was not widely used before the eighteenth century;
|
|
|
624 it did not fully displace the Julian calendar and gain universal
|
|
298
|
625 acceptance until the early twentieth century. The Emacs calendar can
|
|
|
626 display any month since January, year 1 of the current era, but the
|
|
|
627 calendar displayed is the Gregorian, even for a date at which the
|
|
|
628 Gregorian calendar did not exist.
|
|
0
|
629
|
|
298
|
630 While Emacs cannot display other calendars, it can convert dates to
|
|
|
631 and from several other calendars.
|
|
0
|
632
|
|
298
|
633 @menu
|
|
|
634 * Calendar Systems:: The calendars Emacs understands
|
|
|
635 (aside from Gregorian).
|
|
|
636 * To Other Calendar:: Converting the selected date to various calendars.
|
|
|
637 * From Other Calendar:: Moving to a date specified in another calendar.
|
|
|
638 * Mayan Calendar:: Moving to a date specified in a Mayan calendar.
|
|
|
639 @end menu
|
|
0
|
640
|
|
|
641 If you are interested in these calendars, you can convert dates one at a
|
|
|
642 time. Put point on the desired date of the Gregorian calendar and press the
|
|
|
643 appropriate keys. The @kbd{p} is a mnemonic for ``print'' since Emacs
|
|
|
644 ``prints' the equivalent date in the echo area.
|
|
298
|
645 @node Calendar Systems, To Other Calendar, Other Calendars, Other Calendars
|
|
|
646 @section Supported Calendar Systems
|
|
0
|
647
|
|
|
648 @cindex ISO commercial calendar
|
|
|
649 The ISO commercial calendar is used largely in Europe.
|
|
|
650
|
|
|
651 @cindex Julian calendar
|
|
|
652 The Julian calendar, named after Julius Caesar, was the one used in Europe
|
|
|
653 throughout medieval times, and in many countries up until the nineteenth
|
|
|
654 century.
|
|
|
655
|
|
|
656 @cindex Julian day numbers
|
|
|
657 @cindex astronomical day numbers
|
|
|
658 Astronomers use a simple counting of days elapsed since noon, Monday,
|
|
|
659 January 1, 4713 B.C. on the Julian calendar. The number of days elapsed
|
|
|
660 is called the @emph{Julian day number} or the @emph{Astronomical day number}.
|
|
|
661
|
|
|
662 @cindex Hebrew calendar
|
|
298
|
663 The Hebrew calendar is used by tradition in the Jewish religion. The
|
|
|
664 Emacs calendar program uses the Hebrew calendar to determine the dates
|
|
|
665 of Jewish holidays. Hebrew calendar dates begin and end at sunset.
|
|
0
|
666
|
|
|
667 @cindex Islamic calendar
|
|
298
|
668 The Islamic calendar is used in many predominantly Islamic countries.
|
|
|
669 Emacs uses it to determine the dates of Islamic holidays. There is no
|
|
|
670 universal agreement in the Islamic world about the calendar; Emacs uses
|
|
|
671 a widely accepted version, but the precise dates of Islamic holidays
|
|
|
672 often depend on proclamation by religious authorities, not on
|
|
|
673 calculations. As a consequence, the actual dates of observance can vary
|
|
|
674 slightly from the dates computed by Emacs. Islamic calendar dates begin
|
|
|
675 and end at sunset.
|
|
0
|
676
|
|
|
677 @cindex French Revolutionary calendar
|
|
|
678 The French Revolutionary calendar was created by the Jacobins after the 1789
|
|
|
679 revolution, to represent a more secular and nature-based view of the annual
|
|
|
680 cycle, and to install a 10-day week in a rationalization measure similar to
|
|
|
681 the metric system. The French government officially abandoned this
|
|
|
682 calendar at the end of 1805.
|
|
|
683
|
|
|
684 @cindex Mayan calendar
|
|
|
685 The Maya of Central America used three separate, overlapping calendar
|
|
|
686 systems, the @emph{long count}, the @emph{tzolkin}, and the @emph{haab}.
|
|
|
687 Emacs knows about all three of these calendars. Experts dispute the
|
|
|
688 exact correlation between the Mayan calendar and our calendar; Emacs uses the
|
|
|
689 Goodman-Martinez-Thompson correlation in its calculations.
|
|
|
690
|
|
298
|
691 @cindex Coptic calendar
|
|
|
692 @cindex Ethiopic calendar
|
|
|
693 The Copts use a calendar based on the ancient Egyptian solar calendar.
|
|
|
694 Their calendar consists of twelve 30-day months followed by an extra
|
|
|
695 five-day period. Once every fourth year they add a leap day to this
|
|
|
696 extra period to make it six days. The Ethiopic calendar is identical in
|
|
|
697 structure, but has different year numbers and month names.
|
|
|
698
|
|
|
699 @cindex Persian calendar
|
|
|
700 The Persians use a solar calendar based on a design of Omar Khayyam.
|
|
|
701 Their calendar consists of twelve months of which the first six have 31
|
|
|
702 days, the next five have 30 days, and the last has 29 in ordinary years
|
|
|
703 and 30 in leap years. Leap years occur in a complicated pattern every
|
|
|
704 four or five years.
|
|
|
705
|
|
|
706 @cindex Chinese calendar
|
|
|
707 The Chinese calendar is a complicated system of lunar months arranged
|
|
|
708 into solar years. The years go in cycles of sixty, each year containing
|
|
|
709 either twelve months in an ordinary year or thirteen months in a leap
|
|
|
710 year; each month has either 29 or 30 days. Years, ordinary months, and
|
|
|
711 days are named by combining one of ten ``celestial stems'' with one of
|
|
|
712 twelve ``terrestrial branches'' for a total of sixty names that are
|
|
|
713 repeated in a cycle of sixty.
|
|
|
714
|
|
|
715 @node To Other Calendar, From Other Calendar, Calendar Systems, Other Calendars
|
|
|
716 @section Converting To Other Calendars
|
|
|
717
|
|
|
718 The following commands describe the selected date (the date at point)
|
|
|
719 in various other calendar systems:
|
|
0
|
720
|
|
298
|
721 @table @kbd
|
|
|
722 @item Button2 Other Calendars
|
|
|
723 Display the date that you click on, expressed in various other calendars.
|
|
|
724 @kindex p @r{(Calendar mode)}
|
|
|
725 @findex calendar-print-iso-date
|
|
|
726 @item p c
|
|
|
727 Display ISO commercial calendar equivalent for selected day
|
|
|
728 (@code{calendar-print-iso-date}).
|
|
|
729 @findex calendar-print-julian-date
|
|
|
730 @item p j
|
|
|
731 Display Julian date for selected day (@code{calendar-print-julian-date}).
|
|
|
732 @findex calendar-print-astro-day-number
|
|
|
733 @item p a
|
|
|
734 Display astronomical (Julian) day number for selected day
|
|
|
735 (@code{calendar-print-astro-day-number}).
|
|
|
736 @findex calendar-print-hebrew-date
|
|
|
737 @item p h
|
|
|
738 Display Hebrew date for selected day (@code{calendar-print-hebrew-date}).
|
|
|
739 @findex calendar-print-islamic-date
|
|
|
740 @item p i
|
|
|
741 Display Islamic date for selected day (@code{calendar-print-islamic-date}).
|
|
|
742 @findex calendar-print-french-date
|
|
|
743 @item p f
|
|
|
744 Display French Revolutionary date for selected day
|
|
|
745 (@code{calendar-print-french-date}).
|
|
|
746 @findex calendar-print-chinese-date
|
|
|
747 @item p C
|
|
|
748 Display Chinese date for selected day
|
|
|
749 (@code{calendar-print-chinese-date}).
|
|
|
750 @findex calendar-print-coptic-date
|
|
|
751 @item p k
|
|
|
752 Display Coptic date for selected day
|
|
|
753 (@code{calendar-print-coptic-date}).
|
|
|
754 @findex calendar-print-ethiopic-date
|
|
|
755 @item p e
|
|
|
756 Display Ethiopic date for selected day
|
|
|
757 (@code{calendar-print-ethiopic-date}).
|
|
|
758 @findex calendar-print-persian-date
|
|
|
759 @item p p
|
|
|
760 Display Persian date for selected day
|
|
|
761 (@code{calendar-print-persian-date}).
|
|
|
762 @findex calendar-print-mayan-date
|
|
|
763 @item p m
|
|
|
764 Display Mayan date for selected day (@code{calendar-print-mayan-date}).
|
|
|
765 @end table
|
|
|
766
|
|
|
767 If you are using X, the easiest way to translate a date into other
|
|
|
768 calendars is to click on it with @kbd{Button2}, then choose @kbd{Other
|
|
|
769 Calendars} from the menu that appears. This displays the equivalent
|
|
|
770 forms of the date in all the calendars Emacs understands, in the form of
|
|
|
771 a menu. (Choosing an alternative from this menu doesn't actually do
|
|
|
772 anything---the menu is used only for display.)
|
|
|
773
|
|
|
774 Put point on the desired date of the Gregorian calendar, then type the
|
|
|
775 appropriate keys. The @kbd{p} is a mnemonic for ``print'' since Emacs
|
|
|
776 ``prints'' the equivalent date in the echo area.
|
|
|
777
|
|
|
778 @node From Other Calendar, Mayan Calendar, To Other Calendar, Other Calendars
|
|
|
779 @section Converting From Other Calendars
|
|
|
780
|
|
|
781 You can use the other supported calendars to specify a date to move
|
|
|
782 to. This section describes the commands for doing this using calendars
|
|
|
783 other than Mayan; for the Mayan calendar, see the following section.
|
|
|
784
|
|
|
785 @kindex g @var{char} @r{(Calendar mode)}
|
|
0
|
786 @findex calendar-goto-iso-date
|
|
|
787 @findex calendar-goto-julian-date
|
|
|
788 @findex calendar-goto-astro-day-number
|
|
|
789 @findex calendar-goto-hebrew-date
|
|
|
790 @findex calendar-goto-islamic-date
|
|
|
791 @findex calendar-goto-french-date
|
|
298
|
792 @findex calendar-goto-chinese-date
|
|
|
793 @findex calendar-goto-persian-date
|
|
|
794 @findex calendar-goto-coptic-date
|
|
|
795 @findex calendar-goto-ethiopic-date
|
|
0
|
796 @table @kbd
|
|
|
797 @item g c
|
|
298
|
798 Move to a date specified in the ISO commercial calendar
|
|
0
|
799 (@code{calendar-goto-iso-date}).
|
|
|
800 @item g j
|
|
298
|
801 Move to a date specified in the Julian calendar
|
|
0
|
802 (@code{calendar-goto-julian-date}).
|
|
|
803 @item g a
|
|
298
|
804 Move to a date specified in astronomical (Julian) day number
|
|
0
|
805 (@code{calendar-goto-astro-day-number}).
|
|
|
806 @item g h
|
|
298
|
807 Move to a date specified in the Hebrew calendar
|
|
0
|
808 (@code{calendar-goto-hebrew-date}).
|
|
|
809 @item g i
|
|
298
|
810 Move to a date specified in the Islamic calendar
|
|
0
|
811 (@code{calendar-goto-islamic-date}).
|
|
|
812 @item g f
|
|
298
|
813 Move to a date specified in the French Revolutionary calendar
|
|
0
|
814 (@code{calendar-goto-french-date}).
|
|
298
|
815 @item g C
|
|
|
816 Move to a date specified in the Chinese calendar
|
|
|
817 (@code{calendar-goto-chinese-date}).
|
|
|
818 @item g p
|
|
|
819 Move to a date specified in the Persian calendar
|
|
|
820 (@code{calendar-goto-persian-date}).
|
|
|
821 @item g k
|
|
|
822 Move to a date specified in the Coptic calendar
|
|
|
823 (@code{calendar-goto-coptic-date}).
|
|
|
824 @item g e
|
|
|
825 Move to a date specified in the Ethiopic calendar
|
|
|
826 (@code{calendar-goto-ethiopic-date}).
|
|
0
|
827 @end table
|
|
|
828
|
|
|
829 These commands ask you for a date on the other calendar, move point to
|
|
|
830 the Gregorian calendar date equivalent to that date, and display the
|
|
|
831 other calendar's date in the echo area. Emacs uses strict completion
|
|
|
832 (@pxref{Completion}) whenever it asks you to type a month name, so you
|
|
|
833 don't have to worry about the spelling of Hebrew, Islamic, or French names.
|
|
|
834
|
|
|
835 @findex list-yahrzeit-dates
|
|
|
836 @cindex yahrzeits
|
|
|
837 One common question concerning the Hebrew calendar is the computation
|
|
|
838 of the anniversary of a date of death, called a ``yahrzeit.'' The Emacs
|
|
|
839 calendar includes a facility for such calculations. If you are in the
|
|
|
840 calendar, the command @kbd{M-x list-yahrzeit-dates} asks you for a
|
|
|
841 range of years and then displays a list of the yahrzeit dates for those
|
|
|
842 years for the date given by point. If you are not in the calendar,
|
|
|
843 this command first asks you for the date of death and the range of
|
|
|
844 years, and then displays the list of yahrzeit dates.
|
|
|
845
|
|
298
|
846 @node Mayan Calendar, Diary ,From Other Calendar ,Other Calendars
|
|
|
847 @subsection Converting from the Mayan Calendar
|
|
|
848
|
|
|
849 Here are the commands to select dates based on the Mayan calendar:
|
|
0
|
850
|
|
|
851 @table @kbd
|
|
|
852 @item g m l
|
|
298
|
853 Move to a date specified by the long count calendar
|
|
0
|
854 (@code{calendar-goto-mayan-long-count-date}).
|
|
298
|
855 @item g m n t
|
|
|
856 Move to the next occurrence of a place in the
|
|
|
857 tzolkin calendar (@code{calendar-next-tzolkin-date}).
|
|
0
|
858 @item g m p t
|
|
298
|
859 Move to the previous occurrence of a place in the
|
|
0
|
860 tzolkin calendar (@code{calendar-previous-tzolkin-date}).
|
|
298
|
861 @item g m n h
|
|
|
862 Move to the next occurrence of a place in the
|
|
|
863 haab calendar (@code{calendar-next-haab-date}).
|
|
0
|
864 @item g m p h
|
|
298
|
865 Move to the previous occurrence of a place in the
|
|
0
|
866 haab calendar (@code{calendar-previous-haab-date}).
|
|
298
|
867 @item g m n c
|
|
|
868 Move to the next occurrence of a place in the
|
|
|
869 calendar round (@code{calendar-next-calendar-round-date}).
|
|
0
|
870 @item g m p c
|
|
298
|
871 Move to the previous occurrence of a place in the
|
|
0
|
872 calendar round (@code{calendar-previous-calendar-round-date}).
|
|
|
873 @end table
|
|
|
874
|
|
|
875 @cindex Mayan long count
|
|
|
876 To understand these commands, you need to understand the Mayan calendars.
|
|
298
|
877 The @dfn{long count} is a counting of days with these units:
|
|
|
878
|
|
|
879 @display
|
|
|
880 1 kin = 1 day@ @ @ 1 uinal = 20 kin@ @ @ 1 tun = 18 uinal
|
|
|
881 1 katun = 20 tun@ @ @ 1 baktun = 20 katun
|
|
|
882 @end display
|
|
0
|
883
|
|
298
|
884 @kindex g m l @r{(Calendar mode)}
|
|
0
|
885 @findex calendar-goto-mayan-long-count-date
|
|
|
886 @noindent
|
|
|
887 Thus, the long count date 12.16.11.16.6 means 12 baktun, 16 katun, 11
|
|
|
888 tun, 16 uinal, and 6 kin. The Emacs calendar can handle Mayan long
|
|
|
889 count dates as early as 7.17.18.13.1, but no earlier. When you use the
|
|
|
890 @kbd{g m l} command, type the Mayan long count date with the baktun,
|
|
|
891 katun, tun, uinal, and kin separated by periods.
|
|
|
892
|
|
|
893 @findex calendar-previous-tzolkin-date
|
|
|
894 @findex calendar-next-tzolkin-date
|
|
|
895 @cindex Mayan tzolkin calendar
|
|
|
896 The Mayan tzolkin calendar is a cycle of 260 days formed by a pair of
|
|
298
|
897 independent cycles of 13 and 20 days. Since this cycle repeats
|
|
|
898 endlessly, Emacs provides commands to move backward and forward to the
|
|
|
899 previous or next point in the cycle. Type @kbd{g m p t} to go to the
|
|
|
900 previous tzolkin date; Emacs asks you for a tzolkin date and moves point
|
|
|
901 to the previous occurrence of that date. Similarly, type @kbd{g m n t}
|
|
|
902 to go to the next occurrence of a tzolkin date.
|
|
0
|
903
|
|
|
904 @findex calendar-previous-haab-date
|
|
|
905 @findex calendar-next-haab-date
|
|
|
906 @cindex Mayan haab calendar
|
|
|
907 The Mayan haab calendar is a cycle of 365 days arranged as 18 months
|
|
298
|
908 of 20 days each, followed a 5-day monthless period. Like the tzolkin
|
|
|
909 cycle, this cycle repeats endlessly, and there are commands to move
|
|
|
910 backward and forward to the previous or next point in the cycle. Type
|
|
|
911 @kbd{g m p h} to go to the previous haab date; Emacs asks you for a haab
|
|
|
912 date and moves point to the previous occurrence of that date.
|
|
|
913 Similarly, type @kbd{g m n h} to go to the next occurrence of a haab
|
|
|
914 date.
|
|
0
|
915
|
|
298
|
916 @c This is omitted because it is too long for smallbook format.
|
|
|
917 @c @findex calendar-previous-calendar-round-date
|
|
0
|
918 @findex calendar-next-calendar-round-date
|
|
|
919 @cindex Mayan calendar round
|
|
|
920 The Maya also used the combination of the tzolkin date and the haab
|
|
|
921 date. This combination is a cycle of about 52 years called a
|
|
|
922 @emph{calendar round}. If you type @kbd{g m p c}, Emacs asks you for
|
|
|
923 both a haab and a tzolkin date and then moves point to the previous
|
|
298
|
924 occurrence of that combination. Use @kbd{g m n c} to move point to the
|
|
|
925 next occurrence of a combination. These commands signal an error if the
|
|
|
926 haab/tzolkin date combination you have typed is impossible.
|
|
0
|
927
|
|
298
|
928 Emacs uses strict completion (@pxref{Completion}) whenever it
|
|
|
929 asks you to type a Mayan name, so you don't have to worry about
|
|
|
930 spelling.
|
|
0
|
931
|
|
298
|
932 @node Diary, Calendar Customization, Mayan Calendar, Calendar/Diary
|
|
0
|
933 @subsection The Diary
|
|
|
934 @cindex diary
|
|
|
935
|
|
298
|
936 The Emacs diary keeps track of appointments or other events on a daily
|
|
|
937 basis, in conjunction with the calendar. To use the diary feature, you
|
|
|
938 must first create a @dfn{diary file} containing a list of events and
|
|
|
939 their dates. Then Emacs can automatically pick out and display the
|
|
|
940 events for today, for the immediate future, or for any specified
|
|
|
941 date.
|
|
0
|
942
|
|
298
|
943 By default, Emacs uses @file{~/diary} as the diary file. This is the
|
|
|
944 same file that the @code{calendar} utility uses. A sample
|
|
0
|
945 @file{~/diary} file is:
|
|
|
946
|
|
|
947 @example
|
|
|
948 12/22/1988 Twentieth wedding anniversary!!
|
|
|
949 &1/1. Happy New Year!
|
|
|
950 10/22 Ruth's birthday.
|
|
|
951 * 21, *: Payday
|
|
|
952 Tuesday--weekly meeting with grad students at 10am
|
|
|
953 Supowit, Shen, Bitner, and Kapoor to attend.
|
|
|
954 1/13/89 Friday the thirteenth!!
|
|
|
955 &thu 4pm squash game with Lloyd.
|
|
|
956 mar 16 Dad's birthday
|
|
|
957 April 15, 1989 Income tax due.
|
|
|
958 &* 15 time cards due.
|
|
|
959 @end example
|
|
|
960
|
|
298
|
961 @noindent
|
|
|
962 This example uses extra spaces to align the event descriptions of most
|
|
|
963 of the entries. Such formatting is purely a matter of taste.
|
|
|
964
|
|
0
|
965 Although you probably will start by creating a diary manually, Emacs
|
|
|
966 provides a number of commands to let you view, add, and change diary
|
|
|
967 entries. You can also share diary entries with other users
|
|
|
968 (@pxref{Included Diary Files}).
|
|
|
969
|
|
|
970 @menu
|
|
|
971 * Diary Commands:: Viewing diary entries and associated calendar dates.
|
|
|
972 * Format of Diary File:: Entering events in your diary.
|
|
298
|
973 * Date Formats:: Various ways you can specify dates.
|
|
|
974 * Adding to Diary:: Commands to create diary entries.
|
|
0
|
975 * Special Diary Entries:: Anniversaries, blocks of dates, cyclic entries, etc.
|
|
|
976 @end menu
|
|
|
977
|
|
|
978 @node Diary Commands, Format of Diary File, Diary, Diary
|
|
|
979 @subsection Commands Displaying Diary Entries
|
|
|
980
|
|
298
|
981 Once you have created a @file{~/diary} file, you can use the calendar
|
|
|
982 to view it. You can also view today's events outside of Calendar mode.
|
|
0
|
983
|
|
|
984 @table @kbd
|
|
|
985 @item d
|
|
298
|
986 Display all diary entries for the selected date
|
|
0
|
987 (@code{view-diary-entries}).
|
|
298
|
988 @item Button2 Diary
|
|
|
989 Display all diary entries for the date you click on.
|
|
0
|
990 @item s
|
|
298
|
991 Display the entire diary file (@code{show-all-diary-entries}).
|
|
0
|
992 @item m
|
|
|
993 Mark all visible dates that have diary entries
|
|
|
994 (@code{mark-diary-entries}).
|
|
|
995 @item u
|
|
298
|
996 Unmark the calendar window (@code{calendar-unmark}).
|
|
0
|
997 @item M-x print-diary-entries
|
|
298
|
998 Print hard copy of the diary display as it appears.
|
|
0
|
999 @item M-x diary
|
|
298
|
1000 Display all diary entries for today's date.
|
|
316
|
1001 @item M-x diary-mail-entries
|
|
|
1002 Mail yourself email reminders about upcoming diary entries.
|
|
0
|
1003 @end table
|
|
|
1004
|
|
298
|
1005 @kindex d @r{(Calendar mode)}
|
|
0
|
1006 @findex view-diary-entries
|
|
298
|
1007 Displaying the diary entries with @kbd{d} shows in a separate window
|
|
|
1008 the diary entries for the selected date in the calendar. The mode line
|
|
|
1009 of the new window shows the date of the diary entries and any holidays
|
|
|
1010 that fall on that date. If you specify a numeric argument with @kbd{d},
|
|
|
1011 it shows all the diary entries for that many successive days. Thus,
|
|
|
1012 @kbd{2 d} displays all the entries for the selected date and for the
|
|
|
1013 following day.
|
|
0
|
1014
|
|
298
|
1015 Another way to display the diary entries for a date is to click
|
|
|
1016 @kbd{Button2} on the date, and then choose @kbd{Diary} from the menu
|
|
|
1017 that appears.
|
|
0
|
1018
|
|
298
|
1019 @kindex m @r{(Calendar mode)}
|
|
0
|
1020 @findex mark-diary-entries
|
|
298
|
1021 @kindex u @r{(Calendar mode)}
|
|
0
|
1022 @findex calendar-unmark
|
|
298
|
1023 To get a broader view of which days are mentioned in the diary, use
|
|
|
1024 the @kbd{m} command. This displays the dates that have diary entries
|
|
|
1025 in a different face (or places a @samp{+} after these dates, if
|
|
|
1026 display with multiple faces is not available). The command applies both
|
|
|
1027 to the currently visible months and to other months that subsequently
|
|
|
1028 become visible by scrolling. To turn marking off and erase the current
|
|
|
1029 marks, type @kbd{u}, which also turns off holiday marks
|
|
|
1030 (@pxref{Holidays}).
|
|
0
|
1031
|
|
298
|
1032 @kindex s @r{(Calendar mode)}
|
|
0
|
1033 @findex show-all-diary-entries
|
|
298
|
1034 To see the full diary file, rather than just some of the entries, use
|
|
|
1035 the @kbd{s} command.
|
|
0
|
1036
|
|
298
|
1037 Display of selected diary entries uses the selective display feature
|
|
|
1038 to hide entries that don't apply.
|
|
0
|
1039
|
|
|
1040 @findex print-diary-entries
|
|
298
|
1041 The diary buffer as you see it is an illusion, so simply printing the
|
|
|
1042 buffer does not print what you see on your screen. There is a special
|
|
|
1043 command to print hard copy of the diary buffer @emph{as it appears};
|
|
0
|
1044 this command is @kbd{M-x print-diary-entries}. It sends the data
|
|
|
1045 directly to the printer. You can customize it like @code{lpr-region}
|
|
|
1046 (@pxref{Hardcopy}).
|
|
|
1047
|
|
|
1048 @findex diary
|
|
|
1049 The command @kbd{M-x diary} displays the diary entries for the current
|
|
|
1050 date, independently of the calendar display, and optionally for the next
|
|
|
1051 few days as well; the variable @code{number-of-diary-entries} specifies
|
|
|
1052 how many days to include (@pxref{Customization}).
|
|
|
1053
|
|
298
|
1054 If you put @code{(diary)} in your @file{.emacs} file, this
|
|
|
1055 automatically displays a window with the day's diary entries, when you
|
|
|
1056 enter Emacs. The mode line of the displayed window shows the date and
|
|
|
1057 any holidays that fall on that date.
|
|
0
|
1058
|
|
316
|
1059 @findex diary-mail-entries
|
|
|
1060 @vindex diary-mail-days
|
|
|
1061 Many users like to receive notice of events in their diary as email.
|
|
|
1062 To send such mail to yourself, use the command @kbd{M-x
|
|
|
1063 diary-mail-entries}. A prefix argument specifies how many days
|
|
|
1064 (starting with today) to check; otherwise, the variable
|
|
|
1065 @code{diary-mail-days} says how many days.
|
|
|
1066
|
|
298
|
1067 @node Format of Diary File, Date Formats, Diary Commands, Diary
|
|
0
|
1068 @subsection The Diary File
|
|
|
1069 @cindex diary file
|
|
|
1070
|
|
|
1071 @vindex diary-file
|
|
|
1072 Your @dfn{diary file} is a file that records events associated with
|
|
298
|
1073 particular dates. The name of the diary file is specified by the
|
|
|
1074 variable @code{diary-file}; @file{~/diary} is the default. The
|
|
|
1075 @code{calendar} utility program supports a subset of the format allowed
|
|
|
1076 by the Emacs diary facilities, so you can use that utility to view the
|
|
|
1077 diary file, with reasonable results aside from the entries it cannot
|
|
|
1078 understand.
|
|
0
|
1079
|
|
298
|
1080 Each entry in the diary file describes one event and consists of one
|
|
|
1081 or more lines. An entry always begins with a date specification at the
|
|
|
1082 left margin. The rest of the entry is simply text to describe the
|
|
|
1083 event. If the entry has more than one line, then the lines after the
|
|
|
1084 first must begin with whitespace to indicate they continue a previous
|
|
|
1085 entry. Lines that do not begin with valid dates and do not continue a
|
|
|
1086 preceding entry are ignored.
|
|
0
|
1087
|
|
|
1088 You can inhibit the marking of certain diary entries in the calendar
|
|
|
1089 window; to do this, insert an ampersand (@samp{&}) at the beginning of
|
|
|
1090 the entry, before the date. This has no effect on display of the entry
|
|
|
1091 in the diary window; it affects only marks on dates in the calendar
|
|
|
1092 window. Nonmarking entries are especially useful for generic entries
|
|
|
1093 that would otherwise mark many different dates.
|
|
|
1094
|
|
|
1095 If the first line of a diary entry consists only of the date or day
|
|
|
1096 name with no following blanks or punctuation, then the diary window
|
|
|
1097 display doesn't include that line; only the continuation lines appear.
|
|
298
|
1098 For example, this entry:
|
|
0
|
1099
|
|
|
1100 @example
|
|
|
1101 02/11/1989
|
|
|
1102 Bill B. visits Princeton today
|
|
|
1103 2pm Cognitive Studies Committee meeting
|
|
|
1104 2:30-5:30 Liz at Lawrenceville
|
|
|
1105 4:00pm Dentist appt
|
|
|
1106 7:30pm Dinner at George's
|
|
|
1107 8:00-10:00pm concert
|
|
|
1108 @end example
|
|
|
1109
|
|
|
1110 @noindent
|
|
|
1111 appears in the diary window without the date line at the beginning.
|
|
|
1112 This style of entry looks neater when you display just a single day's
|
|
|
1113 entries, but can cause confusion if you ask for more than one day's
|
|
|
1114 entries.
|
|
|
1115
|
|
|
1116 You can edit the diary entries as they appear in the window, but it is
|
|
|
1117 important to remember that the buffer displayed contains the @emph{entire}
|
|
|
1118 diary file, with portions of it concealed from view. This means, for
|
|
|
1119 instance, that the @kbd{C-f} (@code{forward-char}) command can put point
|
|
|
1120 at what appears to be the end of the line, but what is in reality the
|
|
298
|
1121 middle of some concealed line.
|
|
|
1122
|
|
|
1123 @emph{Be careful when editing the diary entries!} Inserting
|
|
|
1124 additional lines or adding/deleting characters in the middle of a
|
|
|
1125 visible line cannot cause problems, but editing at the end of a line may
|
|
|
1126 not do what you expect. Deleting a line may delete other invisible
|
|
|
1127 entries that follow it. Before editing the diary, it is best to display
|
|
|
1128 the entire file with @kbd{s} (@code{show-all-diary-entries}).
|
|
|
1129
|
|
|
1130 @node Date Formats,Adding to Diary ,Format of Diary File, Diary
|
|
|
1131 @subsection Date Formats
|
|
|
1132
|
|
|
1133 Here are some sample diary entries, illustrating different ways of
|
|
|
1134 formatting a date. The examples all show dates in American order
|
|
|
1135 (month, day, year), but Calendar mode supports European order (day,
|
|
|
1136 month, year) as an option.
|
|
|
1137
|
|
|
1138 @example
|
|
|
1139 4/20/93 Switch-over to new tabulation system
|
|
|
1140 apr. 25 Start tabulating annual results
|
|
|
1141 4/30 Results for April are due
|
|
|
1142 */25 Monthly cycle finishes
|
|
|
1143 Friday Don't leave without backing up files
|
|
|
1144 @end example
|
|
|
1145
|
|
|
1146 The first entry appears only once, on April 20, 1993. The second and
|
|
|
1147 third appear every year on the specified dates, and the fourth uses a
|
|
|
1148 wildcard (asterisk) for the month, so it appears on the 25th of every
|
|
|
1149 month. The final entry appears every week on Friday.
|
|
0
|
1150
|
|
298
|
1151 You can use just numbers to express a date, as in
|
|
|
1152 @samp{@var{month}/@var{day}} or @samp{@var{month}/@var{day}/@var{year}}.
|
|
|
1153 This must be followed by a nondigit. In the date itself, @var{month}
|
|
|
1154 and @var{day} are numbers of one or two digits. The optional @var{year}
|
|
|
1155 is also a number, and may be abbreviated to the last two digits; that
|
|
|
1156 is, you can use @samp{11/12/1989} or @samp{11/12/89}.
|
|
|
1157
|
|
|
1158 Dates can also have the form @samp{@var{monthname} @var{day}} or
|
|
|
1159 @samp{@var{monthname} @var{day}, @var{year}}, where the month's name can
|
|
|
1160 be spelled in full or abbreviated to three characters (with or without a
|
|
|
1161 period). Case is not significant.
|
|
|
1162
|
|
|
1163 A date may be @dfn{generic}; that is, partially unspecified. Then the
|
|
|
1164 entry applies to all dates that match the specification. If the date
|
|
|
1165 does not contain a year, it is generic and applies to any year.
|
|
|
1166 Alternatively, @var{month}, @var{day}, or @var{year} can be a @samp{*};
|
|
|
1167 this matches any month, day, or year, respectively. Thus, a diary entry
|
|
|
1168 @samp{3/*/*} matches any day in March of any year; so does @samp{march
|
|
|
1169 *}.
|
|
|
1170
|
|
|
1171 @vindex european-calendar-style
|
|
|
1172 @findex european-calendar
|
|
|
1173 @findex american-calendar
|
|
|
1174 If you prefer the European style of writing dates---in which the day
|
|
|
1175 comes before the month---type @kbd{M-x european-calendar} while in the
|
|
|
1176 calendar, or set the variable @code{european-calendar-style} to @code{t}
|
|
|
1177 @emph{before} using any calendar or diary command. This mode interprets
|
|
|
1178 all dates in the diary in the European manner, and also uses European
|
|
|
1179 style for displaying diary dates. (Note that there is no comma after
|
|
|
1180 the @var{monthname} in the European style.) To go back to the (default)
|
|
|
1181 American style of writing dates, type @kbd{M-x american-calendar}.
|
|
|
1182
|
|
|
1183 You can use the name of a day of the week as a generic date which
|
|
|
1184 applies to any date falling on that day of the week. You can abbreviate
|
|
|
1185 the day of the week to three letters (with or without a period) or spell
|
|
|
1186 it in full; case is not significant.
|
|
|
1187
|
|
|
1188 @node Adding to Diary, Special Diary Entries, Date Formats, Diary
|
|
|
1189 @subsection Commands to Add to the Diary
|
|
|
1190
|
|
|
1191 While in the calendar, there are several commands to create diary
|
|
|
1192 entries:
|
|
0
|
1193
|
|
|
1194 @table @kbd
|
|
|
1195 @item i d
|
|
|
1196 Add a diary entry for the selected date (@code{insert-diary-entry}).
|
|
|
1197 @item i w
|
|
|
1198 Add a diary entry for the selected day of the week (@code{insert-weekly-diary-entry}).
|
|
|
1199 @item i m
|
|
|
1200 Add a diary entry for the selected day of the month (@code{insert-monthly-diary-entry}).
|
|
|
1201 @item i y
|
|
|
1202 Add a diary entry for the selected day of the year (@code{insert-yearly-diary-entry}).
|
|
|
1203 @end table
|
|
|
1204
|
|
298
|
1205 @kindex i d @r{(Calendar mode)}
|
|
0
|
1206 @findex insert-diary-entry
|
|
298
|
1207 You can make a diary entry for a specific date by selecting that date
|
|
|
1208 in the calendar window and typing the @kbd{i d} command. This command
|
|
|
1209 displays the end of your diary file in another window and inserts the
|
|
|
1210 date; you can then type the rest of the diary entry.
|
|
0
|
1211
|
|
298
|
1212 @kindex i w @r{(Calendar mode)}
|
|
0
|
1213 @findex insert-weekly-diary-entry
|
|
298
|
1214 @kindex i m @r{(Calendar mode)}
|
|
|
1215 @findex insert-monthly-diary-entry
|
|
|
1216 @kindex i y @r{(Calendar mode)}
|
|
|
1217 @findex insert-yearly-diary-entry
|
|
0
|
1218 If you want to make a diary entry that applies to a specific day of
|
|
298
|
1219 the week, select that day of the week (any occurrence will do) and type
|
|
|
1220 @kbd{i w}. This inserts the day-of-week as a generic date; you can then
|
|
|
1221 type the rest of the diary entry. You can make a monthly diary entry in
|
|
|
1222 the same fashion. Select the day of the month, use the @kbd{i m}
|
|
|
1223 command, and type rest of the entry. Similarly, you can insert a yearly
|
|
|
1224 diary entry with the @kbd{i y} command.
|
|
0
|
1225
|
|
298
|
1226 All of the above commands make marking diary entries by default. To
|
|
|
1227 make a nonmarking diary entry, give a numeric argument to the command.
|
|
|
1228 For example, @kbd{C-u i w} makes a nonmarking weekly diary entry.
|
|
0
|
1229
|
|
298
|
1230 When you modify the diary file, be sure to save the file before
|
|
|
1231 exiting Emacs.
|
|
|
1232
|
|
|
1233 @node Special Diary Entries,, Adding to Diary, Diary
|
|
0
|
1234 @subsection Special Diary Entries
|
|
|
1235
|
|
298
|
1236 In addition to entries based on calendar dates, the diary file can
|
|
|
1237 contain @dfn{sexp entries} for regular events such as anniversaries.
|
|
|
1238 These entries are based on Lisp expressions (sexps) that Emacs evaluates
|
|
|
1239 as it scans the diary file. Instead of a date, a sexp entry contains
|
|
|
1240 @samp{%%} followed by a Lisp expression which must begin and end with
|
|
|
1241 parentheses. The Lisp expression determines which dates the entry
|
|
|
1242 applies to.
|
|
|
1243
|
|
|
1244 Calendar mode provides commands to insert certain commonly used
|
|
|
1245 sexp entries:
|
|
0
|
1246
|
|
|
1247 @table @kbd
|
|
|
1248 @item i a
|
|
298
|
1249 Add an anniversary diary entry for the selected date
|
|
|
1250 (@code{insert-anniversary-diary-entry}).
|
|
0
|
1251 @item i b
|
|
298
|
1252 Add a block diary entry for the current region
|
|
|
1253 (@code{insert-block-diary-entry}).
|
|
0
|
1254 @item i c
|
|
298
|
1255 Add a cyclic diary entry starting at the date
|
|
|
1256 (@code{insert-cyclic-diary-entry}).
|
|
0
|
1257 @end table
|
|
|
1258
|
|
298
|
1259 @kindex i a @r{(Calendar mode)}
|
|
0
|
1260 @findex insert-anniversary-diary-entry
|
|
|
1261 If you want to make a diary entry that applies to the anniversary of a
|
|
|
1262 specific date, move point to that date and use the @kbd{i a} command.
|
|
|
1263 This displays the end of your diary file in another window and inserts
|
|
|
1264 the anniversary description; you can then type the rest of the diary
|
|
298
|
1265 entry. The entry looks like this:
|
|
0
|
1266
|
|
|
1267 @findex diary-anniversary
|
|
|
1268 The effect of @kbd{i a} is to add a @code{diary-anniversary} sexp to your
|
|
|
1269 diary file. You can also add one manually, for instance:
|
|
|
1270
|
|
|
1271 @example
|
|
|
1272 %%(diary-anniversary 10 31 1948) Arthur's birthday
|
|
|
1273 @end example
|
|
|
1274
|
|
|
1275 @noindent
|
|
298
|
1276 This entry applies to October 31 in any year after 1948; @samp{10 31
|
|
|
1277 1948} specifies the date. (If you are using the European calendar
|
|
|
1278 style, the month and day are interchanged.) The reason this expression
|
|
|
1279 requires a beginning year is that advanced diary functions can use it to
|
|
|
1280 calculate the number of elapsed years.
|
|
0
|
1281
|
|
298
|
1282 A @dfn{block} diary entry applies to a specified range of consecutive
|
|
|
1283 dates. Here is a block diary entry that applies to all dates from June
|
|
|
1284 24, 1990 through July 10, 1990:
|
|
0
|
1285
|
|
|
1286 @findex diary-block
|
|
|
1287 @example
|
|
|
1288 %%(diary-block 6 24 1990 7 10 1990) Vacation
|
|
|
1289 @end example
|
|
|
1290
|
|
|
1291 @noindent
|
|
|
1292 The @samp{6 24 1990} indicates the starting date and the @samp{7 10 1990}
|
|
|
1293 indicates the stopping date. (Again, if you are using the European calendar
|
|
|
1294 style, the month and day are interchanged.)
|
|
|
1295
|
|
298
|
1296 @kindex i b @r{(Calendar mode)}
|
|
|
1297 @findex insert-block-diary-entry
|
|
|
1298 To insert a block entry, place point and the mark on the two
|
|
|
1299 dates that begin and end the range, and type @kbd{i b}. This command
|
|
|
1300 displays the end of your diary file in another window and inserts the
|
|
|
1301 block description; you can then type the diary entry.
|
|
|
1302
|
|
|
1303 @kindex i c @r{(Calendar mode)}
|
|
0
|
1304 @findex insert-cyclic-diary-entry
|
|
298
|
1305 @dfn{Cyclic} diary entries repeat after a fixed interval of days. To
|
|
|
1306 create one, select the starting date and use the @kbd{i c} command. The
|
|
|
1307 command prompts for the length of interval, then inserts the entry,
|
|
|
1308 which looks like this:
|
|
0
|
1309
|
|
|
1310 @findex diary-cyclic
|
|
|
1311 @example
|
|
|
1312 %%(diary-cyclic 50 3 1 1990) Renew medication
|
|
|
1313 @end example
|
|
|
1314
|
|
|
1315 @noindent
|
|
298
|
1316 This entry applies to March 1, 1990 and every 50th day following;
|
|
|
1317 @samp{3 1 1990} specifies the starting date. (If you are using the
|
|
|
1318 European calendar style, the month and day are interchanged.)
|
|
0
|
1319
|
|
298
|
1320 All three of these commands make marking diary entries. To insert a
|
|
|
1321 nonmarking entry, give a numeric argument to the command. For example,
|
|
|
1322 @kbd{C-u i a} makes a nonmarking anniversary diary entry.
|
|
0
|
1323
|
|
|
1324 Marking sexp diary entries in the calendar is @emph{extremely}
|
|
|
1325 time-consuming, since every date visible in the calendar window must be
|
|
|
1326 individually checked. So it's a good idea to make sexp diary entries
|
|
298
|
1327 nonmarking (with @samp{&}) when possible.
|
|
0
|
1328
|
|
298
|
1329 Another sophisticated kind of sexp entry, a @dfn{floating} diary entry,
|
|
|
1330 specifies a regularly occurring event by offsets specified in days,
|
|
|
1331 weeks, and months. It is comparable to a crontab entry interpreted by
|
|
|
1332 the @code{cron} utility. Here is a nonmarking, floating diary entry
|
|
|
1333 that applies to the last Thursday in November:
|
|
|
1334
|
|
0
|
1335 @findex diary-float
|
|
|
1336 @example
|
|
|
1337 &%%(diary-float 11 4 -1) American Thanksgiving
|
|
|
1338 @end example
|
|
|
1339
|
|
|
1340 @noindent
|
|
|
1341 The 11 specifies November (the eleventh month), the 4 specifies Thursday
|
|
|
1342 (the fourth day of the week, where Sunday is numbered zero), and the
|
|
|
1343 @minus{}1 specifies ``last'' (1 would mean ``first'', 2 would mean
|
|
|
1344 ``second'', @minus{}2 would mean ``second-to-last'', and so on). The
|
|
|
1345 month can be a single month or a list of months. Thus you could change
|
|
|
1346 the 11 above to @samp{'(1 2 3)} and have the entry apply to the last
|
|
|
1347 Thursday of January, February, and March. If the month is @code{t}, the
|
|
|
1348 entry applies to all months of the year.@refill
|
|
|
1349
|
|
|
1350 The sexp feature of the diary allows you to specify diary entries
|
|
|
1351 based on any Emacs Lisp expression. You can use the library of built-in
|
|
|
1352 functions or you can write your own functions. The built-in functions
|
|
|
1353 include the ones shown in this section, plus a few others (@pxref{Sexp
|
|
|
1354 Diary Entries}).
|
|
|
1355
|
|
|
1356 The generality of sexps lets you specify any diary entry that you can
|
|
|
1357 describe algorithmically. Suppose you get paid on the 21st of the month
|
|
|
1358 if it is a weekday, and to the Friday before if the 21st is on a
|
|
|
1359 weekend. The diary entry
|
|
|
1360
|
|
|
1361 @example
|
|
|
1362 &%%(let ((dayname (calendar-day-of-week date))
|
|
|
1363 (day (car (cdr date))))
|
|
|
1364 (or (and (= day 21) (memq dayname '(1 2 3 4 5)))
|
|
|
1365 (and (memq day '(19 20)) (= dayname 5)))
|
|
|
1366 ) Pay check deposited
|
|
|
1367 @end example
|
|
|
1368
|
|
|
1369 @noindent
|
|
|
1370 to just those dates. This example illustrates how the sexp can depend
|
|
|
1371 on the variable @code{date}; this variable is a list (@var{month}
|
|
|
1372 @var{day} @var{year}) that gives the Gregorian date for which the diary
|
|
|
1373 entries are being found. If the value of the sexp is @code{t}, the
|
|
|
1374 entry applies to that date. If the sexp evaluates to @code{nil}, the
|
|
|
1375 entry does @emph{not} apply to that date.
|
|
|
1376
|
|
|
1377
|
|
298
|
1378 @node Calendar Customization,,Diary, Calendar/Diary
|
|
0
|
1379 @subsection Customizing the Calendar and Diary
|
|
|
1380
|
|
|
1381 There are many customizations that you can use to make the calendar and
|
|
|
1382 diary suit your personal tastes.
|
|
|
1383
|
|
|
1384 @menu
|
|
|
1385 * Calendar Customizing:: Defaults you can set.
|
|
|
1386 * Holiday Customizing:: Defining your own holidays.
|
|
|
1387 * Date Display Format:: Changing the format.
|
|
|
1388 * Time Display Format:: Changing the format.
|
|
|
1389 * Daylight Savings:: Changing the default.
|
|
|
1390 * Diary Customizing:: Defaults you can set.
|
|
|
1391 * Hebrew/Islamic Entries:: How to obtain them.
|
|
|
1392 * Fancy Diary Display:: Enhancing the diary display, sorting entries.
|
|
|
1393 * Included Diary Files:: Sharing a common diary file.
|
|
|
1394 * Sexp Diary Entries:: Fancy things you can do.
|
|
|
1395 * Appt Customizing:: Customizing appointment reminders.
|
|
|
1396 @end menu
|
|
|
1397
|
|
|
1398 @node Calendar Customizing
|
|
|
1399 @subsubsection Customizing the Calendar
|
|
|
1400 @vindex view-diary-entries-initially
|
|
|
1401
|
|
|
1402 If you set the variable @code{view-diary-entries-initially} to
|
|
|
1403 @code{t}, calling up the calendar automatically displays the diary
|
|
|
1404 entries for the current date as well. The diary dates appear only if
|
|
|
1405 the current date is visible. If you add both of the following lines to
|
|
|
1406 your @file{.emacs} file:@refill
|
|
|
1407
|
|
|
1408 @example
|
|
|
1409 (setq view-diary-entries-initially t)
|
|
|
1410 (calendar)
|
|
|
1411 @end example
|
|
|
1412
|
|
|
1413 @noindent
|
|
298
|
1414 this displays both the calendar and diary windows whenever you start Emacs.
|
|
0
|
1415
|
|
|
1416 @vindex view-calendar-holidays-initially
|
|
|
1417 Similarly, if you set the variable
|
|
|
1418 @code{view-calendar-holidays-initially} to @code{t}, entering the
|
|
298
|
1419 calendar automatically displays a list of holidays for the current
|
|
|
1420 three-month period. The holiday list appears in a separate
|
|
|
1421 window.
|
|
|
1422
|
|
0
|
1423 @vindex mark-diary-entries-in-calendar
|
|
298
|
1424 You can set the variable @code{mark-diary-entries-in-calendar} to
|
|
|
1425 @code{t} in order to mark any dates with diary entries. This takes
|
|
|
1426 effect whenever the calendar window contents are recomputed. There are
|
|
|
1427 two ways of marking these dates: by changing the face (@pxref{Faces}),
|
|
|
1428 if the display supports that, or by placing a plus sign (@samp{+})
|
|
|
1429 beside the date otherwise.
|
|
0
|
1430
|
|
|
1431 @vindex mark-holidays-in-calendar
|
|
|
1432 Similarly, setting the variable @code{mark-holidays-in-calendar} to
|
|
298
|
1433 @code{t} marks holiday dates, either with a change of face or with an
|
|
|
1434 asterisk (@samp{*}).
|
|
|
1435
|
|
|
1436 @vindex calendar-holiday-marker
|
|
|
1437 @vindex diary-entry-marker
|
|
|
1438 The variable @code{calendar-holiday-marker} specifies how to mark a
|
|
|
1439 date as being a holiday. Its value may be a character to insert next to
|
|
|
1440 the date, or a face name to use for displaying the date. Likewise, the
|
|
|
1441 variable @code{diary-entry-marker} specifies how to mark a date that has
|
|
|
1442 diary entries. The calendar creates faces named @code{holiday-face} and
|
|
|
1443 @code{diary-face} for these purposes; those symbols are the default
|
|
|
1444 values of these variables, when Emacs supports multiple faces on your
|
|
|
1445 terminal.
|
|
0
|
1446
|
|
|
1447 @vindex calendar-load-hook
|
|
298
|
1448 The variable @code{calendar-load-hook} is a normal hook run when the
|
|
|
1449 calendar package is first loaded (before actually starting to display
|
|
|
1450 the calendar).
|
|
0
|
1451
|
|
|
1452 @vindex initial-calendar-window-hook
|
|
298
|
1453 Starting the calendar runs the normal hook
|
|
|
1454 @code{initial-calendar-window-hook}. Recomputation of the calendar
|
|
|
1455 display does not run this hook. But if you leave the calendar with the
|
|
|
1456 @kbd{q} command and reenter it, the hook runs again.@refill
|
|
0
|
1457
|
|
|
1458 @vindex today-visible-calendar-hook
|
|
298
|
1459 The variable @code{today-visible-calendar-hook} is a normal hook run
|
|
|
1460 after the calendar buffer has been prepared with the calendar when the
|
|
|
1461 current date is visible in the window. One use of this hook is to
|
|
|
1462 replace today's date with asterisks; to do that, use the hook function
|
|
|
1463 @code{calendar-star-date}.
|
|
0
|
1464
|
|
|
1465 @findex calendar-star-date
|
|
|
1466 @example
|
|
298
|
1467 (add-hook 'today-visible-calendar-hook 'calendar-star-date)
|
|
0
|
1468 @end example
|
|
|
1469
|
|
|
1470 @noindent
|
|
298
|
1471 Another standard hook function marks the current date, either by
|
|
|
1472 changing its face or by adding an asterisk. Here's how to use it:
|
|
0
|
1473
|
|
|
1474 @findex calendar-mark-today
|
|
|
1475 @example
|
|
298
|
1476 (add-hook 'today-visible-calendar-hook 'calendar-mark-today)
|
|
0
|
1477 @end example
|
|
|
1478
|
|
298
|
1479 @noindent
|
|
|
1480 @vindex calendar-today-marker
|
|
|
1481 The variable @code{calendar-today-marker} specifies how to mark today's
|
|
|
1482 date. Its value should be a character to insert next to the date or a
|
|
|
1483 face name to use for displaying the date. A face named
|
|
|
1484 @code{calendar-today-face} is provided for this purpose; that symbol is
|
|
|
1485 the default for this variable when Emacs supports multiple faces on your
|
|
|
1486 terminal.
|
|
|
1487
|
|
0
|
1488 @vindex today-invisible-calendar-hook
|
|
|
1489 @noindent
|
|
298
|
1490 A similar normal hook, @code{today-invisible-calendar-hook} is run if
|
|
|
1491 the current date is @emph{not} visible in the window.
|
|
0
|
1492
|
|
|
1493 @node Holiday Customizing
|
|
|
1494 @subsubsection Customizing the Holidays
|
|
|
1495
|
|
|
1496 @vindex calendar-holidays
|
|
|
1497 @vindex christian-holidays
|
|
|
1498 @vindex hebrew-holidays
|
|
|
1499 @vindex islamic-holidays
|
|
|
1500 Emacs knows about holidays defined by entries on one of several lists.
|
|
298
|
1501 You can customize these lists of holidays to your own needs, adding or
|
|
|
1502 deleting holidays. The lists of holidays that Emacs uses are for
|
|
|
1503 general holidays (@code{general-holidays}), local holidays
|
|
|
1504 (@code{local-holidays}), Christian holidays (@code{christian-holidays}),
|
|
|
1505 Hebrew (Jewish) holidays (@code{hebrew-holidays}), Islamic (Moslem)
|
|
|
1506 holidays (@code{islamic-holidays}), and other holidays
|
|
|
1507 (@code{other-holidays}).
|
|
0
|
1508
|
|
|
1509 @vindex general-holidays
|
|
|
1510 The general holidays are, by default, holidays common throughout the
|
|
|
1511 United States. To eliminate these holidays, set @code{general-holidays}
|
|
|
1512 to @code{nil}.
|
|
|
1513
|
|
|
1514 @vindex local-holidays
|
|
|
1515 There are no default local holidays (but sites may supply some). You
|
|
|
1516 can set the variable @code{local-holidays} to any list of holidays, as
|
|
|
1517 described below.
|
|
|
1518
|
|
|
1519 @vindex all-christian-calendar-holidays
|
|
|
1520 @vindex all-hebrew-calendar-holidays
|
|
|
1521 @vindex all-islamic-calendar-holidays
|
|
298
|
1522 By default, Emacs does not include all the holidays of the religions
|
|
|
1523 that it knows, only those commonly found in secular calendars. For a
|
|
|
1524 more extensive collection of religious holidays, you can set any (or
|
|
|
1525 all) of the variables @code{all-christian-calendar-holidays},
|
|
0
|
1526 @code{all-hebrew-calendar-holidays}, or
|
|
|
1527 @code{all-islamic-calendar-holidays} to @code{t}. If you want to
|
|
|
1528 eliminate the religious holidays, set any or all of the corresponding
|
|
|
1529 variables @code{christian-holidays}, @code{hebrew-holidays}, and
|
|
|
1530 @code{islamic-holidays} to @code{nil}.@refill
|
|
|
1531
|
|
|
1532 @vindex other-holidays
|
|
|
1533 You can set the variable @code{other-holidays} to any list of
|
|
298
|
1534 holidays. This list, normally empty, is intended for individual use.
|
|
0
|
1535
|
|
|
1536 @cindex holiday forms
|
|
|
1537 Each of the lists (@code{general-holidays}, @code{local-holidays},
|
|
|
1538 @code{christian-holidays}, @code{hebrew-holidays},
|
|
|
1539 @code{islamic-holidays}, and @code{other-holidays}) is a list of
|
|
|
1540 @dfn{holiday forms}, each holiday form describing a holiday (or
|
|
298
|
1541 sometimes a list of holidays).
|
|
|
1542
|
|
|
1543 Here is a table of the possible kinds of holiday form. Day numbers
|
|
|
1544 and month numbers count starting from 1, but ``dayname'' numbers
|
|
|
1545 count Sunday as 0. The element @var{string} is always the
|
|
|
1546 name of the holiday, as a string.
|
|
0
|
1547
|
|
|
1548 @table @code
|
|
|
1549 @item (holiday-fixed @var{month} @var{day} @var{string})
|
|
|
1550 A fixed date on the Gregorian calendar. @var{month} and @var{day} are
|
|
|
1551 numbers, @var{string} is the name of the holiday.
|
|
|
1552
|
|
|
1553 @item (holiday-float @var{month} @var{dayname} @var{k} @var{string})
|
|
|
1554 The @var{k}th @var{dayname} in @var{month} on the Gregorian calendar
|
|
|
1555 (@var{dayname}=0 for Sunday, and so on); negative @var{k} means count back
|
|
|
1556 from the end of the month. @var{string} is the name of the holiday.
|
|
|
1557
|
|
|
1558 @item (holiday-hebrew @var{month} @var{day} @var{string})
|
|
|
1559 A fixed date on the Hebrew calendar. @var{month} and @var{day} are
|
|
|
1560 numbers, @var{string} is the name of the holiday.
|
|
|
1561
|
|
|
1562 @item (holiday-islamic @var{month} @var{day} @var{string})
|
|
|
1563 A fixed date on the Islamic calendar. @var{month} and @var{day} are
|
|
|
1564 numbers, @var{string} is the name of the holiday.
|
|
|
1565
|
|
|
1566 @item (holiday-julian @var{month} @var{day} @var{string})
|
|
|
1567 A fixed date on the Julian calendar. @var{month} and @var{day} are
|
|
|
1568 numbers, @var{string} is the name of the holiday.
|
|
|
1569
|
|
|
1570 @item (holiday-sexp @var{sexp} @var{string})
|
|
298
|
1571 A date calculated by the Lisp expression @var{sexp}. The expression
|
|
|
1572 should use the variable @code{year} to compute and return the date of a
|
|
|
1573 holiday, or @code{nil} if the holiday doesn't happen this year. The
|
|
|
1574 value of @var{sexp} must represent the date as a list of the form
|
|
0
|
1575 @code{(@var{month} @var{day} @var{year})}. @var{string} is the name of
|
|
|
1576 the holiday.
|
|
|
1577
|
|
298
|
1578 @item (if @var{condition} @var{holiday-form} &optional @var{holiday-form})
|
|
|
1579 A holiday that happens only if @var{condition} is true.
|
|
0
|
1580
|
|
298
|
1581 @item (@var{function} @r{[}@var{args}@r{]})
|
|
|
1582 A list of dates calculated by the function @var{function}, called with
|
|
|
1583 arguments @var{args}.
|
|
0
|
1584 @end table
|
|
|
1585
|
|
|
1586 For example, suppose you want to add Bastille Day, celebrated in
|
|
|
1587 France on July 14. You can do this by adding the following line
|
|
|
1588 to your @file{.emacs} file:
|
|
|
1589
|
|
|
1590 @smallexample
|
|
|
1591 (setq other-holidays '((holiday-fixed 7 14 "Bastille Day")))
|
|
|
1592 @end smallexample
|
|
|
1593
|
|
|
1594 @noindent
|
|
|
1595 The holiday form @code{(holiday-fixed 7 14 "Bastille Day")} specifies the
|
|
|
1596 fourteenth day of the seventh month (July).
|
|
|
1597
|
|
|
1598 Many holidays occur on a specific day of the week, at a specific time
|
|
|
1599 of month. Here is a holiday form describing Hurricane Supplication Day,
|
|
|
1600 celebrated in the Virgin Islands on the fourth Monday in August:
|
|
|
1601
|
|
|
1602 @smallexample
|
|
|
1603 (holiday-float 8 1 4 "Hurricane Supplication Day")
|
|
|
1604 @end smallexample
|
|
|
1605
|
|
|
1606 @noindent
|
|
|
1607 Here the 8 specifies August, the 1 specifies Monday (Sunday is 0,
|
|
|
1608 Tuesday is 2, and so on), and the 4 specifies the fourth occurrence in
|
|
|
1609 the month (1 specifies the first occurrence, 2 the second occurrence,
|
|
|
1610 @minus{}1 the last occurrence, @minus{}2 the second-to-last occurrence, and
|
|
|
1611 so on).
|
|
|
1612
|
|
|
1613 You can specify holidays that occur on fixed days of the Hebrew,
|
|
|
1614 Islamic, and Julian calendars too. For example,
|
|
|
1615
|
|
|
1616 @smallexample
|
|
|
1617 (setq other-holidays
|
|
|
1618 '((holiday-hebrew 10 2 "Last day of Hanukkah")
|
|
|
1619 (holiday-islamic 3 12 "Mohammed's Birthday")
|
|
|
1620 (holiday-julian 4 2 "Jefferson's Birthday")))
|
|
|
1621 @end smallexample
|
|
|
1622
|
|
|
1623 @noindent
|
|
|
1624 adds the last day of Hanukkah (since the Hebrew months are numbered with
|
|
|
1625 1 starting from Nisan), the Islamic feast celebrating Mohammed's
|
|
|
1626 birthday (since the Islamic months are numbered from 1 starting with
|
|
|
1627 Muharram), and Thomas Jefferson's birthday, which is 2 April 1743 on the
|
|
|
1628 Julian calendar.
|
|
|
1629
|
|
298
|
1630 To include a holiday conditionally, use either Emacs Lisp's @code{if} or the
|
|
|
1631 @code{holiday-sexp} form. For example, American presidential elections
|
|
|
1632 occur on the first Tuesday after the first Monday in November of years
|
|
|
1633 divisible by 4:
|
|
0
|
1634
|
|
|
1635 @smallexample
|
|
|
1636 (holiday-sexp (if (= 0 (% year 4))
|
|
|
1637 (calendar-gregorian-from-absolute
|
|
|
1638 (1+ (calendar-dayname-on-or-before
|
|
|
1639 1 (+ 6 (calendar-absolute-from-gregorian
|
|
|
1640 (list 11 1 year))))))
|
|
|
1641 "US Presidential Election"))
|
|
|
1642 @end smallexample
|
|
|
1643
|
|
|
1644 @noindent
|
|
|
1645 or
|
|
|
1646
|
|
|
1647 @smallexample
|
|
|
1648 (if (= 0 (% displayed-year 4))
|
|
|
1649 (fixed 11
|
|
|
1650 (extract-calendar-day
|
|
|
1651 (calendar-gregorian-from-absolute
|
|
|
1652 (1+ (calendar-dayname-on-or-before
|
|
|
1653 1 (+ 6 (calendar-absolute-from-gregorian
|
|
|
1654 (list 11 1 displayed-year)))))))
|
|
|
1655 "US Presidential Election"))
|
|
|
1656 @end smallexample
|
|
|
1657
|
|
|
1658 Some holidays just don't fit into any of these forms because special
|
|
|
1659 calculations are involved in their determination. In such cases you
|
|
298
|
1660 must write a Lisp function to do the calculation. To include eclipses,
|
|
|
1661 for example, add @code{(eclipses)} to @code{other-holidays}
|
|
|
1662 and write an Emacs Lisp function @code{eclipses} that returns a
|
|
|
1663 (possibly empty) list of the relevant Gregorian dates among the range
|
|
|
1664 visible in the calendar window, with descriptive strings, like this:
|
|
0
|
1665
|
|
|
1666 @smallexample
|
|
|
1667 (((6 27 1991) "Lunar Eclipse") ((7 11 1991) "Solar Eclipse") ... )
|
|
|
1668 @end smallexample
|
|
|
1669
|
|
|
1670 @node Date Display Format
|
|
|
1671 @subsubsection Date Display Format
|
|
|
1672 @vindex calendar-date-display-form
|
|
|
1673
|
|
298
|
1674 You can customize the manner of displaying dates in the diary, in mode
|
|
|
1675 lines, and in messages by setting @code{calendar-date-display-form}.
|
|
|
1676 This variable holds a list of expressions that can involve the variables
|
|
|
1677 @code{month}, @code{day}, and @code{year}, which are all numbers in
|
|
|
1678 string form, and @code{monthname} and @code{dayname}, which are both
|
|
|
1679 alphabetic strings. In the American style, the default value of this
|
|
|
1680 list is as follows:
|
|
0
|
1681
|
|
|
1682 @smallexample
|
|
|
1683 ((if dayname (concat dayname ", ")) monthname " " day ", " year)
|
|
|
1684 @end smallexample
|
|
|
1685
|
|
|
1686 @noindent
|
|
|
1687 while in the European style this value is the default:
|
|
|
1688
|
|
|
1689 @smallexample
|
|
|
1690 ((if dayname (concat dayname ", ")) day " " monthname " " year)
|
|
|
1691 @end smallexample
|
|
|
1692
|
|
298
|
1693 +@noindent
|
|
0
|
1694 The ISO standard date representation is this:
|
|
|
1695
|
|
|
1696 @smallexample
|
|
|
1697 (year "-" month "-" day)
|
|
|
1698 @end smallexample
|
|
|
1699
|
|
|
1700 @noindent
|
|
|
1701 This specifies a typical American format:
|
|
|
1702
|
|
|
1703 @smallexample
|
|
|
1704 (month "/" day "/" (substring year -2))
|
|
|
1705 @end smallexample
|
|
|
1706
|
|
|
1707 @node Time Display Format
|
|
|
1708 @subsubsection Time Display Format
|
|
|
1709 @vindex calendar-time-display-form
|
|
|
1710
|
|
298
|
1711 The calendar and diary by default display times of day in the
|
|
|
1712 conventional American style with the hours from 1 through 12, minutes,
|
|
|
1713 and either @samp{am} or @samp{pm}. If you prefer the European style,
|
|
|
1714 also known in the US as military, in which the hours go from 00 to 23,
|
|
|
1715 you can alter the variable @code{calendar-time-display-form}. This
|
|
|
1716 variable is a list of expressions that can involve the variables
|
|
|
1717 @code{12-hours}, @code{24-hours}, and @code{minutes}, which are all
|
|
|
1718 numbers in string form, and @code{am-pm} and @code{time-zone}, which are
|
|
|
1719 both alphabetic strings. The default value of
|
|
|
1720 @code{calendar-time-display-form} is as follows:
|
|
0
|
1721
|
|
|
1722 @smallexample
|
|
|
1723 (12-hours ":" minutes am-pm
|
|
|
1724 (if time-zone " (") time-zone (if time-zone ")"))
|
|
|
1725 @end smallexample
|
|
|
1726
|
|
298
|
1727 @noindent
|
|
|
1728 Here is a value that provides European style times:
|
|
0
|
1729
|
|
|
1730 @smallexample
|
|
|
1731 (24-hours ":" minutes
|
|
|
1732 (if time-zone " (") time-zone (if time-zone ")"))
|
|
|
1733 @end smallexample
|
|
|
1734
|
|
|
1735 @noindent
|
|
|
1736 gives military-style times like @samp{21:07 (UT)} if time zone names are
|
|
|
1737 defined, and times like @samp{21:07} if they are not.
|
|
|
1738
|
|
|
1739 @node Daylight Savings
|
|
|
1740 @subsubsection Daylight Savings Time
|
|
|
1741 @cindex daylight savings time
|
|
|
1742
|
|
|
1743 Emacs understands the difference between standard time and daylight
|
|
|
1744 savings time---the times given for sunrise, sunset, solstices,
|
|
|
1745 equinoxes, and the phases of the moon take that into account. The rules
|
|
|
1746 for daylight savings time vary from place to place and have also varied
|
|
|
1747 historically from year to year. To do the job properly, Emacs needs to
|
|
|
1748 know which rules to use.
|
|
|
1749
|
|
|
1750 Some operating systems keep track of the rules that apply to the place
|
|
|
1751 where you are; on these systems, Emacs gets the information it needs
|
|
|
1752 from the system automatically. If some or all of this information is
|
|
|
1753 missing, Emacs fills in the gaps with the rules currently used in
|
|
298
|
1754 Cambridge, Massachusetts. If the resulting rules are not what you want,
|
|
|
1755 you can tell Emacs the rules to use by setting certain variables.
|
|
0
|
1756
|
|
|
1757 @vindex calendar-daylight-savings-starts
|
|
|
1758 @vindex calendar-daylight-savings-ends
|
|
298
|
1759 If the default choice of rules is not appropriate for your location,
|
|
|
1760 you can tell Emacs the rules to use by setting the variables
|
|
|
1761 @code{calendar-daylight-savings-starts} and
|
|
0
|
1762 @code{calendar-daylight-savings-ends}. Their values should be Lisp
|
|
|
1763 expressions that refer to the variable @code{year}, and evaluate to the
|
|
|
1764 Gregorian date on which daylight savings time starts or (respectively)
|
|
|
1765 ends, in the form of a list @code{(@var{month} @var{day} @var{year})}.
|
|
|
1766 The values should be @code{nil} if your area does not use daylight
|
|
|
1767 savings time.
|
|
|
1768
|
|
316
|
1769 Emacs uses these expressions to determine the starting date of
|
|
|
1770 daylight savings time for the holiday list and for correcting times of
|
|
|
1771 day in the solar and lunar calculations.
|
|
298
|
1772
|
|
0
|
1773 The values for Cambridge, Massachusetts are as follows:
|
|
|
1774
|
|
|
1775 @example
|
|
|
1776 @group
|
|
|
1777 (calendar-nth-named-day 1 0 4 year)
|
|
|
1778 (calendar-nth-named-day -1 0 10 year)
|
|
|
1779 @end group
|
|
|
1780 @end example
|
|
|
1781
|
|
|
1782 @noindent
|
|
316
|
1783 That is, the first 0th day (Sunday) of the fourth month (April) in
|
|
0
|
1784 the year specified by @code{year}, and the last Sunday of the tenth month
|
|
|
1785 (October) of that year. If daylight savings time were
|
|
|
1786 changed to start on October 1, you would set
|
|
|
1787 @code{calendar-daylight-savings-starts} to this:
|
|
|
1788
|
|
|
1789 @example
|
|
|
1790 (list 10 1 year)
|
|
|
1791 @end example
|
|
|
1792
|
|
|
1793 For a more complex example, suppose daylight savings time begins on
|
|
298
|
1794 the first of Nisan on the Hebrew calendar. You should set
|
|
|
1795 @code{calendar-daylight-savings-starts} to this value:
|
|
0
|
1796
|
|
|
1797 @example
|
|
|
1798 (calendar-gregorian-from-absolute
|
|
|
1799 (calendar-absolute-from-hebrew
|
|
|
1800 (list 1 1 (+ year 3760))))
|
|
|
1801 @end example
|
|
|
1802
|
|
|
1803 @noindent
|
|
|
1804 because Nisan is the first month in the Hebrew calendar and the Hebrew
|
|
|
1805 year differs from the Gregorian year by 3760 at Nisan.
|
|
|
1806
|
|
|
1807 If there is no daylight savings time at your location, or if you want
|
|
|
1808 all times in standard time, set @code{calendar-daylight-savings-starts}
|
|
|
1809 and @code{calendar-daylight-savings-ends} to @code{nil}.
|
|
|
1810
|
|
|
1811 @vindex calendar-daylight-time-offset
|
|
298
|
1812 The variable @code{calendar-daylight-time-offset} specifies the
|
|
|
1813 difference between daylight savings time and standard time, measured in
|
|
|
1814 minutes. The value for Cambridge, Massachusetts is 60.
|
|
0
|
1815
|
|
298
|
1816 @c @vindex calendar-daylight-savings-starts-time too long!
|
|
0
|
1817 @vindex calendar-daylight-savings-ends-time
|
|
316
|
1818 The two variables @code{calendar-daylight-savings-starts-time} and
|
|
|
1819 @code{calendar-daylight-savings-ends-time} specify the number of minutes
|
|
|
1820 after midnight local time when the transition to and from daylight
|
|
|
1821 savings time should occur. For Cambridge, Massachusetts both variables'
|
|
298
|
1822 values are 120.
|
|
|
1823
|
|
0
|
1824 @node Diary Customizing
|
|
|
1825 @subsubsection Customizing the Diary
|
|
|
1826
|
|
|
1827 @vindex holidays-in-diary-buffer
|
|
|
1828 Ordinarily, the mode line of the diary buffer window indicates any
|
|
|
1829 holidays that fall on the date of the diary entries. The process of
|
|
|
1830 checking for holidays can take several seconds, so including holiday
|
|
|
1831 information delays the display of the diary buffer noticeably. If you'd
|
|
|
1832 prefer to have a faster display of the diary buffer but without the
|
|
|
1833 holiday information, set the variable @code{holidays-in-diary-buffer} to
|
|
|
1834 @code{nil}.@refill
|
|
|
1835
|
|
|
1836 @vindex number-of-diary-entries
|
|
|
1837 The variable @code{number-of-diary-entries} controls the number of
|
|
|
1838 days of diary entries to be displayed at one time. It affects the
|
|
|
1839 initial display when @code{view-diary-entries-initially} is @code{t}, as
|
|
|
1840 well as the command @kbd{M-x diary}. For example, the default value is
|
|
|
1841 1, which says to display only the current day's diary entries. If the
|
|
|
1842 value is 2, both the current day's and the next day's entries are
|
|
298
|
1843 displayed. The value can also be a vector of seven elements: for
|
|
|
1844 example, if the value is @code{[0 2 2 2 2 4 1]} then no diary entries
|
|
|
1845 appear on Sunday, the current date's and the next day's diary entries
|
|
|
1846 appear Monday through Thursday, Friday through Monday's entries appear
|
|
|
1847 on Friday, while on Saturday only that day's entries appear.
|
|
0
|
1848
|
|
|
1849 @vindex print-diary-entries-hook
|
|
|
1850 @findex print-diary-entries
|
|
|
1851 The variable @code{print-diary-entries-hook} is a normal hook run
|
|
|
1852 after preparation of a temporary buffer containing just the diary
|
|
|
1853 entries currently visible in the diary buffer. (The other, irrelevant
|
|
|
1854 diary entries are really absent from the temporary buffer; in the diary
|
|
|
1855 buffer, they are merely hidden.) The default value of this hook does
|
|
|
1856 the printing with the command @code{lpr-buffer}. If you want to use a
|
|
|
1857 different command to do the printing, just change the value of this
|
|
|
1858 hook. Other uses might include, for example, rearranging the lines into
|
|
|
1859 order by day and time.
|
|
|
1860
|
|
|
1861 @vindex diary-date-forms
|
|
|
1862 You can customize the form of dates in your diary file, if neither the
|
|
|
1863 standard American nor European styles suits your needs, by setting the
|
|
298
|
1864 variable @code{diary-date-forms}. This variable is a list of patterns
|
|
|
1865 for recognizing a date. Each date pattern is a list whose elements may
|
|
|
1866 be regular expressions (@pxref{Regexps}) or the symbols
|
|
|
1867 @code{month}, @code{day}, @code{year}, @code{monthname}, and
|
|
|
1868 @code{dayname}. All these elements serve as patterns that match certain
|
|
|
1869 kinds of text in the diary file. In order for the date pattern, as a
|
|
|
1870 whole, to match, all of its elements must match consecutively.
|
|
|
1871
|
|
|
1872 A regular expression in a date pattern matches in its usual fashion,
|
|
|
1873 using the standard syntax table altered so that @samp{*} is a word
|
|
|
1874 constituent.
|
|
|
1875
|
|
|
1876 The symbols @code{month}, @code{day}, @code{year}, @code{monthname},
|
|
|
1877 and @code{dayname} match the month number, day number, year number,
|
|
|
1878 month name, and day name of the date being considered. The symbols that
|
|
|
1879 match numbers allow leading zeros; those that match names allow
|
|
|
1880 three-letter abbreviations and capitalization. All the symbols can
|
|
|
1881 match @samp{*}; since @samp{*} in a diary entry means ``any day'', ``any
|
|
|
1882 month'', and so on, it should match regardless of the date being
|
|
|
1883 considered.
|
|
|
1884
|
|
|
1885 The default value of @code{diary-date-forms} in the American style is
|
|
|
1886 this:
|
|
0
|
1887
|
|
|
1888 @example
|
|
|
1889 ((month "/" day "[^/0-9]")
|
|
|
1890 (month "/" day "/" year "[^0-9]")
|
|
|
1891 (monthname " *" day "[^,0-9]")
|
|
|
1892 (monthname " *" day ", *" year "[^0-9]")
|
|
|
1893 (dayname "\\W"))
|
|
|
1894 @end example
|
|
|
1895
|
|
|
1896 @noindent
|
|
|
1897 Emacs matches of the diary entries with the date forms is done with the
|
|
|
1898 standard syntax table from Fundamental mode
|
|
|
1899 (@pxref{Syntax Tables,,,lispref,XEmacs Lisp Reference Manual}),
|
|
|
1900 but with the @samp{*} changed so that it is a word constituent.@refill
|
|
|
1901
|
|
298
|
1902 The date patterns in the list must be @emph{mutually exclusive} and
|
|
|
1903 must not match any portion of the diary entry itself, just the date and
|
|
|
1904 one character of whitespace. If, to be mutually exclusive, the pattern
|
|
|
1905 must match a portion of the diary entry text---beyond the whitespace
|
|
|
1906 that ends the date---then the first element of the date pattern
|
|
|
1907 @emph{must} be @code{backup}. This causes the date recognizer to back
|
|
|
1908 up to the beginning of the current word of the diary entry, after
|
|
|
1909 finishing the match. Even if you use @code{backup}, the date pattern
|
|
|
1910 must absolutely not match more than a portion of the first word of the
|
|
|
1911 diary entry. The default value of @code{diary-date-forms} in the
|
|
0
|
1912 European style is this list:
|
|
|
1913
|
|
|
1914 @example
|
|
|
1915 ((day "/" month "[^/0-9]")
|
|
|
1916 (day "/" month "/" year "[^0-9]")
|
|
|
1917 (backup day " *" monthname "\\W+\\<[^*0-9]")
|
|
|
1918 (day " *" monthname " *" year "[^0-9]")
|
|
|
1919 (dayname "\\W"))
|
|
|
1920 @end example
|
|
|
1921
|
|
|
1922 @noindent
|
|
298
|
1923 Notice the use of @code{backup} in the third pattern, because it needs
|
|
|
1924 to match part of a word beyond the date itself to distinguish it from
|
|
|
1925 the fourth pattern.
|
|
|
1926
|
|
0
|
1927 @node Hebrew/Islamic Entries
|
|
|
1928 @subsubsection Hebrew- and Islamic-Date Diary Entries
|
|
|
1929
|
|
|
1930 Your diary file can have entries based on Hebrew or Islamic dates, as
|
|
298
|
1931 well as entries based on the world-standard Gregorian calendar.
|
|
|
1932 However, because recognition of such entries is time-consuming and most
|
|
|
1933 people don't use them, you must explicitly enable their use. If you
|
|
|
1934 want the diary to recognize Hebrew-date diary entries, for example,
|
|
|
1935 you must do this:
|
|
|
1936
|
|
0
|
1937 @vindex nongregorian-diary-listing-hook
|
|
|
1938 @vindex nongregorian-diary-marking-hook
|
|
|
1939 @findex list-hebrew-diary-entries
|
|
|
1940 @findex mark-hebrew-diary-entries
|
|
|
1941 @smallexample
|
|
298
|
1942 (add-hook 'nongregorian-diary-listing-hook 'list-hebrew-diary-entries)
|
|
|
1943 (add-hook 'nongregorian-diary-marking-hook 'mark-hebrew-diary-entries)
|
|
0
|
1944 @end smallexample
|
|
|
1945
|
|
|
1946 @noindent
|
|
298
|
1947 If you want Islamic-date entries, do this:
|
|
0
|
1948
|
|
|
1949 @findex list-islamic-diary-entries
|
|
|
1950 @findex mark-islamic-diary-entries
|
|
|
1951 @smallexample
|
|
298
|
1952 (add-hook 'nongregorian-diary-listing-hook 'list-islamic-diary-entries)
|
|
|
1953 (add-hook 'nongregorian-diary-marking-hook 'mark-islamic-diary-entries)
|
|
0
|
1954 @end smallexample
|
|
|
1955
|
|
|
1956 Hebrew- and Islamic-date diary entries have the same formats as
|
|
298
|
1957 Gregorian-date diary entries, except that @samp{H} precedes a Hebrew
|
|
|
1958 date and @samp{I} precedes an Islamic date. Moreover, because the
|
|
|
1959 Hebrew and Islamic month names are not uniquely specified by the first
|
|
|
1960 three letters, you may not abbreviate them. For example, a diary entry
|
|
|
1961 for the Hebrew date Heshvan 25 could look like this:
|
|
0
|
1962
|
|
|
1963 @smallexample
|
|
|
1964 HHeshvan 25 Happy Hebrew birthday!
|
|
|
1965 @end smallexample
|
|
|
1966
|
|
|
1967 @noindent
|
|
|
1968 and would appear in the diary for any date that corresponds to Heshvan 25
|
|
298
|
1969 on the Hebrew calendar. And here is Islamic-date diary entry that matches
|
|
|
1970 Dhu al-Qada 25:
|
|
0
|
1971
|
|
|
1972 @smallexample
|
|
|
1973 IDhu al-Qada 25 Happy Islamic birthday!
|
|
|
1974 @end smallexample
|
|
|
1975
|
|
|
1976 @noindent
|
|
|
1977 and would appear in the diary for any date that corresponds to Dhu al-Qada 25
|
|
|
1978 on the Islamic calendar.
|
|
|
1979
|
|
|
1980 As with Gregorian-date diary entries, Hebrew- and Islamic-date entries
|
|
|
1981 are nonmarking if they are preceded with an ampersand (@samp{&}).
|
|
|
1982
|
|
298
|
1983 Here is a table of commands used in the calendar to create diary entries
|
|
|
1984 that match the selected date and other dates that are similar in the Hebrew
|
|
|
1985 or Islamic calendar:
|
|
|
1986
|
|
0
|
1987 @table @kbd
|
|
|
1988 @item i h d
|
|
|
1989 Add a diary entry for the Hebrew date corresponding to the selected date
|
|
|
1990 (@code{insert-hebrew-diary-entry}).
|
|
|
1991 @item i h m
|
|
|
1992 Add a diary entry for the day of the Hebrew month corresponding to the
|
|
298
|
1993 selected date (@code{insert-monthly-hebrew-diary-entry}). This diary
|
|
|
1994 entry matches any date that has the same Hebrew day-within-month as the
|
|
|
1995 selected date.
|
|
0
|
1996 @item i h y
|
|
|
1997 Add a diary entry for the day of the Hebrew year corresponding to the
|
|
298
|
1998 selected date (@code{insert-yearly-hebrew-diary-entry}). This diary
|
|
|
1999 entry matches any date which has the same Hebrew month and day-within-month
|
|
|
2000 as the selected date.
|
|
0
|
2001 @item i i d
|
|
|
2002 Add a diary entry for the Islamic date corresponding to the selected date
|
|
|
2003 (@code{insert-islamic-diary-entry}).
|
|
|
2004 @item i i m
|
|
|
2005 Add a diary entry for the day of the Islamic month corresponding to the
|
|
|
2006 selected date (@code{insert-monthly-islamic-diary-entry}).
|
|
|
2007 @item i i y
|
|
|
2008 Add a diary entry for the day of the Islamic year corresponding to the
|
|
|
2009 selected date (@code{insert-yearly-islamic-diary-entry}).
|
|
|
2010 @end table
|
|
|
2011
|
|
|
2012 @findex insert-hebrew-diary-entry
|
|
|
2013 @findex insert-monthly-hebrew-diary-entry
|
|
|
2014 @findex insert-yearly-hebrew-diary-entry
|
|
|
2015 @findex insert-islamic-diary-entry
|
|
|
2016 @findex insert-monthly-islamic-diary-entry
|
|
|
2017 @findex insert-yearly-islamic-diary-entry
|
|
298
|
2018 These commands work much like the corresponding commands for ordinary
|
|
|
2019 diary entries: they apply to the date that point is on in the calendar
|
|
|
2020 window, and what they do is insert just the date portion of a diary entry
|
|
|
2021 at the end of your diary file. You must then insert the rest of the
|
|
|
2022 diary entry.
|
|
|
2023
|
|
0
|
2024 @node Fancy Diary Display
|
|
|
2025 @subsubsection Fancy Diary Display
|
|
|
2026 @vindex diary-display-hook
|
|
|
2027 @findex simple-diary-display
|
|
|
2028
|
|
|
2029 Diary display works by preparing the diary buffer and then running the
|
|
298
|
2030 hook @code{diary-display-hook}. The default value of this hook
|
|
|
2031 (@code{simple-diary-display}) hides the irrelevant diary entries and
|
|
|
2032 then displays the buffer. However, if you specify the hook as follows,
|
|
|
2033
|
|
0
|
2034 @cindex diary buffer
|
|
|
2035 @findex fancy-diary-display
|
|
|
2036 @example
|
|
|
2037 (add-hook 'diary-display-hook 'fancy-diary-display)
|
|
|
2038 @end example
|
|
|
2039
|
|
|
2040 @noindent
|
|
298
|
2041 this enables fancy diary display. It displays diary entries and
|
|
|
2042 holidays by copying them into a special buffer that exists only for the
|
|
|
2043 sake of display. Copying to a separate buffer provides an opportunity
|
|
|
2044 to change the displayed text to make it prettier---for example, to sort
|
|
|
2045 the entries by the dates they apply to.
|
|
0
|
2046
|
|
|
2047 As with simple diary display, you can print a hard copy of the buffer
|
|
|
2048 with @code{print-diary-entries}. To print a hard copy of a day-by-day
|
|
|
2049 diary for a week by positioning point on Sunday of that week, type
|
|
|
2050 @kbd{7 d} and then do @kbd{M-x print-diary-entries}. As usual, the
|
|
|
2051 inclusion of the holidays slows down the display slightly; you can speed
|
|
|
2052 things up by setting the variable @code{holidays-in-diary-buffer} to
|
|
|
2053 @code{nil}.
|
|
|
2054
|
|
|
2055 @vindex diary-list-include-blanks
|
|
|
2056 Ordinarily, the fancy diary buffer does not show days for which there are
|
|
|
2057 no diary entries, even if that day is a holiday. If you want such days to be
|
|
|
2058 shown in the fancy diary buffer, set the variable
|
|
|
2059 @code{diary-list-include-blanks} to @code{t}.@refill
|
|
|
2060
|
|
|
2061 @cindex sorting diary entries
|
|
|
2062 If you use the fancy diary display, you can use the normal hook
|
|
|
2063 @code{list-diary-entries-hook} to sort each day's diary entries by their
|
|
|
2064 time of day. Add this line to your @file{.emacs} file:
|
|
|
2065
|
|
|
2066 @findex sort-diary-entries
|
|
|
2067 @example
|
|
298
|
2068 (add-hook 'list-diary-entries-hook 'sort-diary-entries t)
|
|
0
|
2069 @end example
|
|
|
2070
|
|
|
2071 @noindent
|
|
|
2072 For each day, this sorts diary entries that begin with a recognizable
|
|
|
2073 time of day according to their times. Diary entries without times come
|
|
|
2074 first within each day.
|
|
|
2075
|
|
|
2076 @node Included Diary Files
|
|
|
2077 @subsubsection Included Diary Files
|
|
|
2078
|
|
298
|
2079 Fancy diary display also has the ability to process included diary
|
|
|
2080 files. This permits a group of people to share a diary file for events
|
|
|
2081 that apply to all of them. Lines in the diary file of this form:
|
|
|
2082
|
|
0
|
2083 @smallexample
|
|
|
2084 #include "@var{filename}"
|
|
|
2085 @end smallexample
|
|
|
2086
|
|
|
2087 @noindent
|
|
|
2088 includes the diary entries from the file @var{filename} in the fancy
|
|
298
|
2089 diary buffer. The include mechanism is recursive, so that included files
|
|
|
2090 can include other files, and so on; you must be careful not to have a
|
|
|
2091 cycle of inclusions, of course. Here is how to enable the include
|
|
|
2092 facility:
|
|
0
|
2093
|
|
|
2094 @vindex list-diary-entries-hook
|
|
|
2095 @vindex mark-diary-entries-hook
|
|
|
2096 @findex include-other-diary-files
|
|
|
2097 @findex mark-included-diary-files
|
|
|
2098 @smallexample
|
|
|
2099 (add-hook 'list-diary-entries-hook 'include-other-diary-files)
|
|
|
2100 (add-hook 'mark-diary-entries-hook 'mark-included-diary-files)
|
|
|
2101 @end smallexample
|
|
|
2102
|
|
298
|
2103 The include mechanism works only with the fancy diary display, because
|
|
|
2104 ordinary diary display shows the entries directly from your diary file.
|
|
|
2105
|
|
0
|
2106 @node Sexp Diary Entries
|
|
|
2107 @subsubsection Sexp Entries and the Fancy Diary Display
|
|
|
2108 @cindex sexp diary entries
|
|
|
2109
|
|
|
2110 Sexp diary entries allow you to do more than just have complicated
|
|
|
2111 conditions under which a diary entry applies. If you use the fancy
|
|
|
2112 diary display, sexp entries can generate the text of the entry depending
|
|
|
2113 on the date itself. For example, an anniversary diary entry can insert
|
|
|
2114 the number of years since the anniversary date into the text of the
|
|
|
2115 diary entry. Thus the @samp{%d} in this dairy entry:
|
|
|
2116
|
|
|
2117 @findex diary-anniversary
|
|
|
2118 @smallexample
|
|
|
2119 %%(diary-anniversary 10 31 1948) Arthur's birthday (%d years old)
|
|
|
2120 @end smallexample
|
|
|
2121
|
|
|
2122 @noindent
|
|
|
2123 gets replaced by the age, so on October 31, 1990 the entry appears in
|
|
|
2124 the fancy diary buffer like this:
|
|
|
2125
|
|
|
2126 @smallexample
|
|
|
2127 Arthur's birthday (42 years old)
|
|
|
2128 @end smallexample
|
|
|
2129
|
|
|
2130 @noindent
|
|
|
2131 If the diary file instead contains this entry:
|
|
|
2132
|
|
|
2133 @smallexample
|
|
|
2134 %%(diary-anniversary 10 31 1948) Arthur's %d%s birthday
|
|
|
2135 @end smallexample
|
|
|
2136
|
|
|
2137 @noindent
|
|
|
2138 the entry in the fancy diary buffer for October 31, 1990 appears like this:
|
|
|
2139
|
|
|
2140 @smallexample
|
|
|
2141 Arthur's 42nd birthday
|
|
|
2142 @end smallexample
|
|
|
2143
|
|
|
2144 Similarly, cyclic diary entries can interpolate the number of repetitions
|
|
|
2145 that have occurred:
|
|
|
2146
|
|
|
2147 @findex diary-cyclic
|
|
|
2148 @smallexample
|
|
|
2149 %%(diary-cyclic 50 1 1 1990) Renew medication (%d%s time)
|
|
|
2150 @end smallexample
|
|
|
2151
|
|
|
2152 @noindent
|
|
|
2153 looks like this:
|
|
|
2154
|
|
|
2155 @smallexample
|
|
|
2156 Renew medication (5th time)
|
|
|
2157 @end smallexample
|
|
|
2158
|
|
|
2159 @noindent
|
|
|
2160 in the fancy diary display on September 8, 1990.
|
|
|
2161
|
|
|
2162 The generality of sexp diary entries lets you specify any diary entry
|
|
298
|
2163 that you can describe algorithmically. A sexp diary entry contains an
|
|
|
2164 expression that computes whether the entry applies to any given date.
|
|
|
2165 If its value is non-@code{nil}, the entry applies to that date;
|
|
|
2166 otherwise, it does not. The expression can use the variable @code{date}
|
|
|
2167 to find the date being considered; its value is a list (@var{month}
|
|
|
2168 @var{day} @var{year}) that refers to the Gregorian calendar.
|
|
|
2169
|
|
|
2170 Suppose you get paid on the 21st of the month if it is a weekday, and
|
|
|
2171 on the Friday before if the 21st is on a weekend. Here is how to write
|
|
|
2172 a sexp diary entry that matches those dates:
|
|
0
|
2173
|
|
|
2174 @smallexample
|
|
|
2175 &%%(let ((dayname (calendar-day-of-week date))
|
|
|
2176 (day (car (cdr date))))
|
|
|
2177 (or (and (= day 21) (memq dayname '(1 2 3 4 5)))
|
|
|
2178 (and (memq day '(19 20)) (= dayname 5)))
|
|
|
2179 ) Pay check deposited
|
|
|
2180 @end smallexample
|
|
|
2181
|
|
|
2182 @noindent
|
|
|
2183 applies to just those dates. This example illustrates how the sexp can
|
|
|
2184 depend on the variable @code{date}; this variable is a list (@var{month}
|
|
|
2185 @var{day} @var{year}) that gives the Gregorian date for which the diary
|
|
|
2186 entries are being found. If the value of the expression is @code{t},
|
|
|
2187 the entry applies to that date. If the expression evaluates to
|
|
|
2188 @code{nil}, the entry does @emph{not} apply to that date.
|
|
|
2189
|
|
|
2190 The following sexp diary entries take advantage of the ability (in the fancy
|
|
298
|
2191 diary display) to concoct diary entries whose text varies based on the date:
|
|
0
|
2192
|
|
|
2193 @findex diary-sunrise-sunset
|
|
|
2194 @findex diary-phases-of-moon
|
|
|
2195 @findex diary-day-of-year
|
|
|
2196 @findex diary-iso-date
|
|
|
2197 @findex diary-julian-date
|
|
|
2198 @findex diary-astro-day-number
|
|
|
2199 @findex diary-hebrew-date
|
|
|
2200 @findex diary-islamic-date
|
|
|
2201 @findex diary-french-date
|
|
|
2202 @findex diary-mayan-date
|
|
|
2203 @table @code
|
|
|
2204 @item %%(diary-sunrise-sunset)
|
|
|
2205 Make a diary entry for the local times of today's sunrise and sunset.
|
|
|
2206 @item %%(diary-phases-of-moon)
|
|
|
2207 Make a diary entry for the phases (quarters) of the moon.
|
|
|
2208 @item %%(diary-day-of-year)
|
|
|
2209 Make a diary entry with today's day number in the current year and the number
|
|
|
2210 of days remaining in the current year.
|
|
|
2211 @item %%(diary-iso-date)
|
|
|
2212 Make a diary entry with today's equivalent ISO commercial date.
|
|
|
2213 @item %%(diary-julian-date)
|
|
|
2214 Make a diary entry with today's equivalent date on the Julian calendar.
|
|
|
2215 @item %%(diary-astro-day-number)
|
|
|
2216 Make a diary entry with today's equivalent astronomical (Julian) day number.
|
|
|
2217 @item %%(diary-hebrew-date)
|
|
|
2218 Make a diary entry with today's equivalent date on the Hebrew calendar.
|
|
|
2219 @item %%(diary-islamic-date)
|
|
|
2220 Make a diary entry with today's equivalent date on the Islamic calendar.
|
|
|
2221 @item %%(diary-french-date)
|
|
|
2222 Make a diary entry with today's equivalent date on the French Revolutionary
|
|
|
2223 calendar.
|
|
|
2224 @item %%(diary-mayan-date)
|
|
|
2225 Make a diary entry with today's equivalent date on the Mayan calendar.
|
|
|
2226 @end table
|
|
|
2227
|
|
|
2228 @noindent
|
|
|
2229 Thus including the diary entry
|
|
|
2230
|
|
|
2231 @smallexample
|
|
|
2232 &%%(diary-hebrew-date)
|
|
|
2233 @end smallexample
|
|
|
2234
|
|
|
2235 @noindent
|
|
|
2236 causes every day's diary display to contain the equivalent date on the
|
|
|
2237 Hebrew calendar, if you are using the fancy diary display. (With simple
|
|
|
2238 diary display, the line @samp{&%%(diary-hebrew-date)} appears in the
|
|
|
2239 diary for any date, but does nothing particularly useful.)
|
|
|
2240
|
|
298
|
2241 These functions can be used to construct sexp diary entries based on
|
|
|
2242 the Hebrew calendar in certain standard ways:
|
|
|
2243
|
|
0
|
2244 @cindex rosh hodesh
|
|
|
2245 @findex diary-rosh-hodesh
|
|
|
2246 @cindex parasha, weekly
|
|
|
2247 @findex diary-parasha
|
|
|
2248 @cindex candle lighting times
|
|
|
2249 @findex diary-sabbath-candles
|
|
|
2250 @cindex omer count
|
|
|
2251 @findex diary-omer
|
|
|
2252 @cindex yahrzeits
|
|
|
2253 @findex diary-yahrzeit
|
|
|
2254 @table @code
|
|
|
2255 @item %%(diary-rosh-hodesh)
|
|
|
2256 Make a diary entry that tells the occurrence and ritual announcement of each
|
|
|
2257 new Hebrew month.
|
|
|
2258 @item %%(diary-parasha)
|
|
|
2259 Make a Saturday diary entry that tells the weekly synagogue scripture reading.
|
|
|
2260 @item %%(diary-sabbath-candles)
|
|
|
2261 Make a Friday diary entry that tells the @emph{local time} of Sabbath
|
|
|
2262 candle lighting.
|
|
|
2263 @item %%(diary-omer)
|
|
|
2264 Make a diary entry that gives the omer count, when appropriate.
|
|
|
2265 @item %%(diary-yahrzeit @var{month} @var{day} @var{year}) @var{name}
|
|
|
2266 Make a diary entry marking the anniversary of a date of death. The date
|
|
|
2267 is the @emph{Gregorian} (civil) date of death. The diary entry appears
|
|
|
2268 on the proper Hebrew calendar anniversary and on the day before. (In
|
|
|
2269 the European style, the order of the parameters is changed to @var{day},
|
|
|
2270 @var{month}, @var{year}.)
|
|
|
2271 @end table
|
|
|
2272
|
|
|
2273 @node Appt Customizing
|
|
|
2274 @subsubsection Customizing Appointment Reminders
|
|
|
2275
|
|
298
|
2276 You can specify exactly how Emacs reminds you of an appointment, and
|
|
|
2277 how far in advance it begins doing so, by setting these variables:
|
|
0
|
2278
|
|
|
2279 @vindex appt-message-warning-time
|
|
|
2280 @vindex appt-audible
|
|
|
2281 @vindex appt-visible
|
|
|
2282 @vindex appt-display-mode-line
|
|
|
2283 @vindex appt-msg-window
|
|
|
2284 @vindex appt-display-duration
|
|
|
2285 @table @code
|
|
|
2286 @item appt-message-warning-time
|
|
|
2287 The time in minutes before an appointment that the reminder begins. The
|
|
|
2288 default is 10 minutes.
|
|
|
2289 @item appt-audible
|
|
|
2290 If this is @code{t} (the default), Emacs rings the terminal bell for
|
|
|
2291 appointment reminders.
|
|
|
2292 @item appt-visible
|
|
|
2293 If this is @code{t} (the default), Emacs displays the appointment
|
|
|
2294 message in echo area.
|
|
|
2295 @item appt-display-mode-line
|
|
|
2296 If this is @code{t} (the default), Emacs displays the number of minutes
|
|
|
2297 to the appointment on the mode line.
|
|
|
2298 @item appt-msg-window
|
|
|
2299 If this is @code{t} (the default), Emacs displays the appointment
|
|
|
2300 message in another window.
|
|
|
2301 @item appt-display-duration
|
|
|
2302 The number of seconds an appointment message is displayed. The default
|
|
|
2303 is 5 seconds.
|
|
|
2304 @end table
|
