1: \label{Authoring_Output_Tags}
2:
3:
4: This group of tags generates useful output.
5:
6: \begin{itemize}
7: \item \textbf{algebra}\index{algebra}: Typesets algebraic expressions
8: \begin{verbatim}
9: <algebra>2x^y+sqrt(3/x^2)</algebra>
10: \end{verbatim}
11: Expressions are displayed using the math expression display mechanism defined in the user's preferences. The default is tth. See the section below concerning the $<$m$>$ tag for more information on that as well as on the attribute \textbf{display}.
12: \item \textbf{chem}\index{chem}: Typesets chemical equation
13: \begin{verbatim}
14: <chem>O2 + 2H2 -> 2H2O</chem>
15: \end{verbatim}
16: \item \textbf{num}\index{num}: Typesets a number formatted in scientific notation, fixed point, fixed point with commas, fixed point with commas and dollar sign, or in significant digits.
17: \begin{verbatim}
18: <num format="2E">31454678</num>
19: <num format="2f">31454678</num>
20: <num format="2f">31454678</num>
21: <num format=",2f">31454678</num>
22: <num format="$2f">31454678</num>
23: <num format="2s">31454678</num>
24: \end{verbatim}
25: \item \textbf{parse}\index{parse}: to display the parsed view of a variable's
26: contents
27: \begin{verbatim}
28: <script type="loncapa/perl">
29: $table=`<table>';
30: for ($i=1;$i<=10;$i++) {
31: $table.=`<tr><td>'.$i.`</td><td>'.&random(1,10,1).`</td></tr>';
32: }
33: $table.=`</table>';
34: </script>
35: <parse>$table</parse>
36: \end{verbatim}
37:
38: \item \textbf{standalone}\index{standalone}: Everything in between the
39: start and end tag is shown only on the web and only if the resource
40: is not part of a course.
41: \item \textbf{displayduedate}\index{displayduedate}: This will insert the
42: current due date if one is set in the document. It is generated to
43: be inside a table of 1x1 elements. The displayduedate tag accepts
44: The following attributes:
45: \begin{description}
46: \item{style=``plain'' } Makes the due date appear without any boxing.
47: If the parameter value is other than ``\emph{plain}'',
48: or if the \textbf{style} parameter is omitted, the
49: due date will be displayed within a box.
50: \item{format=``fmt\_string''}
51: Allows you to control the format of the due date.
52: ``\emph{fmt\_string}'' is an arbitrary string that
53: can contain any of the following formatting items:
54: \begin{description}
55: \item{\%a} Replaced by the abbreviated weekday
56: name according to the current locale.
57: \item{\%A} Replaced by the full weekday name
58: according to the current locale.
59: \item{\%b} The abbreviated month name according to the
60: current locale.
61: \item{\%B} The full month name according to the
62: current locale.
63: \item{\%c} The preferred date and time representation
64: for the current locale (the default format
65: string is just this).
66: \item{\%C} The century number as a two digit integer
67: \item{\%d} The day of the month as a decimal number.
68: Leading zeroes are shown for single digit day numbers.
69: \item{\%D} Equivalent to \%m/\%d/\%y
70: \item{\%e} Like \%d but a leadnig zero is replaced by a space.
71: \item{\%F} Equivalent to \%Y-\%m-\%d
72: \item{\%G} The four digit year number.
73: \item{\%g} The two digit year numbger.
74: \item{\%H} The hour as a two digit number in the range 00 thorugh 23.
75: \item{\%I} The hour as a two digit number in the range 00 through 12.
76: \item{\%j} The day your the year in the range 001 through 366.
77: \item{\%k} The hour (24 hour clock), single digits are preceded by a blank.
78: \item{\%l} Like \%k but using a 12 hour clock.
79: \item{\%m} The month as a two digit decimal number in the range 01 through 12.
80: \item{\%M} The minute as a two digit decimal number in the range 00 through 59.
81: \item{\%n} A newline character.
82: \item{\%p} AM or PM depending on the time value.
83: \item{\%P} am or pm.
84: \item{\%r} The time in am or pm notation.
85: \item{\%R} Time in 24 hour notatinon (\%H:\%M). See also \%T below.
86: \item{\%s} Number of seconds since midnight of January 1, 1970.
87: \item{\%S} The second as a decimal number int the range 00 through 59.
88: \item{\%t} A horizontal tab character.
89: \item{\%T} The time in 24 hour notation (\%H:\%M:\%S).
90: \item{\%u} Day of the week as a decimal number with Monday as 1.
91: \item{\%U} The week number of the current year in the range 00 through 53.
92: Week 1 is the week containing the first Sunday of the year.
93: \item{\%V} Same as \%U but week 1 is the first week with at least 4 days,
94: with Monday being the first day of a week.
95: \item{\%w} Day of the week as a decimal integer in the range 0 through 7, Sunday is 0.
96: \item{\%W} Week number of the current year in the range 00 through 53, where
97: the first Monday of the year is the first day of week 01.
98: \item{\%x} The preferred date notation in the current locale without the time.
99: \item{\%X} The preferred time notation in the current locale without the date.
100: \item{\%y} The year as a decimal number without the century (range 00 through 99).
101: \item{\%Y} The year as a decimal number including the century.
102: \item{\%\%} A \% character.
103: \item{\%+} Date and time in the form returned by the Unix date command.
104: \end{description}
105: \end{description}
106: \item \textbf{displaytitle}\index{displaytitle}: This will insert the title
107: of the problem from the metadata of the problem. Only the first \textbf{displaytitle}
108: in a problem will show the title; this allows clean usage of \textbf{displaytitle}
109: in LON-CAPA style files.
110:
111: \item \textbf{window}\index{window}: This creates a link that when clicked shows the intervening information in a pop-up window. By default the window will be 500 pixels wide and 200 pixels tall, and the link text will be a superscript * (so as to look like a footnote). These can be changed using the attributes
112:
113: \begin{itemize}
114: \item \textbf{width} controls the starting width of the popup window
115: \item \textbf{height} controls the starting height of the popup window
116: \item \textbf{linktext} the text that should appear as the link that causes the creation of the window
117: \end{itemize}
118:
119: When printing, this included text will get turned into a real footnote.
120:
121:
122: \item \textbf{m}\index{m}: The inside text is \LaTeX{}, and is converted
123: to HTML (or MathML) on the fly. The default is to convert
124: to the display mechanism that the user has selected in preferences. This can be
125: overriden by setting the attribute \textbf{display} to one of
126: ``\textbf{tth}'' or ``\textbf{jsMath}'' or ``\textbf{mimetex}''which
127: will force a specfic display mechanism. Note, however, that setting the attribute \textbf{diplay} to \textbf{jsmath} is generally discouraged as it requires users to have installed jsmath software on their computer.
128:
129: If you want variables inside of this tag to be evaluated before the
130: tex gets converted, then use eval=``on'' \index{eval=on}. For
131: example, $<$m eval=``on''$>$\textbackslash{}[\$eqn\textbackslash{}]$<$/m$>$,
132: will evaluate the variable \$eqn first and then run it through the
133: TTH\index{TTH} converter. Anytime you use a variable inside of the m tag,
134: you will want to set eval to on.
135:
136: For example, put the following in a script in the resource:
137:
138: \texttt{\$eqn = "\$a+\$b";}
139:
140: \texttt{\$eqn =~ s/\textbackslash{}+-/-/g;}
141:
142: and in a text area, you can type:
143:
144: \texttt{<m eval=``on''>\$eqn</m>}
145:
146: You will get the equation rendered with no +-, no matter what value
147: \$b may take on.
148:
149:
150: \item \textbf{randomlabel}\index{randomlabel}: This shows a specified image
151: with images or text labels randomly assigned to a set of specific
152: locations. Those locations may also have values assigned to them.
153: A hash is generated that contains the mapping of labels to locations,
154: labels to values, and locations to values. Example: \begin{verbatim}
155:
156: <randomlabel bgimg="URL" width="12" height="45" texwidth="50">
157: <labelgroup name="GroupOne" type="image">
158: <location x="123" y="456" value="10" />
159: <location x="321" y="654" value="20" />
160: <location x="213" y="546" value="13" />
161: <label description="TEXT-1">IMG-URL</label>
162: <label description="TEXT-2">IMG-URL</label>
163: <label description="TEXT-3">IMG-URL</label>
164: </labelgroup>
165: <labelgroup name="GroupTwo" type="text">
166: <location x="12" y="45" />
167: <location x="32" y="65" />
168: <location x="21" y="54" />
169: <label>TEXT-1</label>
170: <label>TEXT-2</label>
171: <label>TEXT-3</label>
172: </labelgroup>
173: </randomlabel>
174:
175: \end{verbatim}
176:
177: Possible attributes are:
178:
179: \begin{itemize}
180: \item \textbf{bgimg}\index{bgimg}: Either a fully qualified URL for an
181: external image or a LON-CAPA resource. It supports relative references
182: (../images/apicture.gif). The image must either be a GIF or JPEG.
183: \item \textbf{width}\index{width}: The width of the image in pixels.
184: \item \textbf{height}\index{height}: The height of the image in pixels.
185: \item \textbf{texwidth}\index{texwidth}: The width of the image in millimeters.
186: \end{itemize}
187: \end{itemize}
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