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<title>(IUCr) CIF dictionary cif_img.dic Extended data types</title>
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<p class="title">DRAFT DICTIONARY</p>
<p class="title"><font class="smalltitle"></font>CBF/imgCIF Extensions Dictionary</p>
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<p class="title">Draft version 1.5 for comment</p>
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<h5>Image dictionary (imgCIF)</h5><h1>Extended data types</h1><p>The following extended data types are defined in this dictionary:</p>
<table class="cifcatexample" width="100%"><tr><td valign="top" width="10%"><b>Code</b></td>
<td valign="top"><b>Primitive data type</b></td>
<td valign="top"><b>Regular expression construct</b></td>
<td valign="top" width="30%"><b>Description</b></td></tr>
<tr><td colspan="4"> </td></tr>
<tr><td valign="top">code</td>
<td valign="top">char</td>
<td valign="top"><tt>[_,.;:"&<>()/\{}'`~!@#$%A-Za-z0-9*|+-]*</tt></td>
<td valign="top"> code item types/single words ...
</td></tr>
<tr><td valign="top">ucode</td>
<td valign="top">uchar</td>
<td valign="top"><tt>[_,.;:"&<>()/\{}'`~!@#$%A-Za-z0-9*|+-]*</tt></td>
<td valign="top"> code item types/single words (case insensitive) ...
</td></tr>
<tr><td valign="top">line</td>
<td valign="top">char</td>
<td valign="top"><tt>[][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*</tt></td>
<td valign="top"> char item types / multi-word items ...
</td></tr>
<tr><td valign="top">uline</td>
<td valign="top">uchar</td>
<td valign="top"><tt>[][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*</tt></td>
<td valign="top"> char item types / multi-word items (case insensitive)...
</td></tr>
<tr><td valign="top">text</td>
<td valign="top">char</td>
<td valign="top"><tt>[][ \n\t()_,.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*</tt></td>
<td valign="top"> text item types / multi-line text ...
</td></tr>
<tr><td valign="top">binary</td>
<td valign="top">char</td>
<td valign="top"><tt>\n--CIF-BINARY-FORMAT-SECTION--\n\
[][ \n\t()_,.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*\
\n--CIF-BINARY-FORMAT-SECTION----
</tt></td>
<td valign="top"> binary items are presented as MIME-like ascii-encoded
sections in an imgCIF. In a CBF, raw octet streams
are used to convey the same information.
</td></tr>
<tr><td valign="top">int</td>
<td valign="top">numb</td>
<td valign="top"><tt>-?[0-9]+</tt></td>
<td valign="top"> int item types are the subset of numbers that are the negative
or positive integers.
</td></tr>
<tr><td valign="top">float</td>
<td valign="top">numb</td>
<td valign="top"><tt>-?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?</tt></td>
<td valign="top"> float item types are the subset of numbers that are the floating
point numbers.
</td></tr>
<tr><td valign="top">any</td>
<td valign="top">char</td>
<td valign="top"><tt>.*</tt></td>
<td valign="top"> A catch all for items that may take any form...
</td></tr>
<tr><td valign="top">yyyy-mm-dd</td>
<td valign="top">char</td>
<td valign="top"><tt>\
[0-9]?[0-9]?[0-9][0-9]-[0-9]?[0-9]-[0-9]?[0-9]\
((T[0-2][0-9](:[0-5][0-9](:[0-5][0-9](.[0-9]+)?)?)?)?\
([+-][0-5][0-9]:[0-5][0-9]))?
</tt></td>
<td valign="top">
Standard format for CIF date and time strings (see
http://www.iucr.org/iucr-top/cif/spec/datetime.html),
consisting of a yyyy-mm-dd date optionally followed by
the character 'T' followed by a 24-hour clock time,
optionally followed by a signed time-zone offset.
The IUCr standard has been extended to allow for an optional
decimal fraction on the seconds of time.
Time is local time if no time-zone offset is given.
Note that this type extends the mmCIF yyyy-mm-dd type
but does not conform to the mmCIF yyyy-mm-dd:hh:mm
type that uses a ':' in place if the 'T' specified
by the IUCr standard. For reading, both forms should
be accepted, but for writing, only the IUCr form should
be used.
For maximal compatibility, the special time zone
indicator 'Z' (for 'zulu') should be accepted on
reading in place of '+00:00' for GMT.
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<h4 align=left>
HTML version of draft dictionary created by modified version of makedicthtml by B. McMahon
from modified version of imgCIF dcitionary 1.3.2 which is subject to the following copyright:
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