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Macromolecular dictionary (mmCIF)

Extended data types

The following extended data types are defined in this dictionary:

Code Primitive data type Regular expression construct Description
 
code char [_,.;:"&<>()/\{}'`~!@#$%A-Za-z0-9*|+-]* code item types/single words ...
ucode uchar [_,.;:"&<>()/\{}'`~!@#$%A-Za-z0-9*|+-]* code item types/single words (case insensitive) ...
line char [][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]* char item types / multi-word items ...
uline uchar [][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]* char item types / multi-word items (case insensitive)...
text char [][ \n\t()_,.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]* text item types / multi-line text ...
int numb -?[0-9]+ int item types are the subset of numbers that are the negative or positive integers.
float numb -?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)? float item types are the subset of numbers that are the floating numbers.
name uchar _[_A-Za-z0-9]+\.[][_A-Za-z0-9%-]+ name item types take the form...
idname uchar [_A-Za-z0-9]+ idname item types take the form...
any char .* A catch all for items that may take any form...
yyyy-mm-dd char [0-9]?[0-9]?[0-9][0-9]-[0-9]?[0-9]-[0-9][0-9] Standard format for CIF dates.
uchar3 uchar [+]?[A-Za-z0-9][A-Za-z0-9][A-Za-z0-9] data item for 3 character codes
uchar1 uchar [+]?[A-Za-z0-9] data item for 1 character codes
symop char ([1-9]|[1-9][0-9]|1[0-8][0-9]|19[0-2])(_[1-9][1-9][1-9])? symop item types take the form n_klm, where n refers to the symmetry operation that is applied to the coordinates in the ATOM_SITE category identified by _atom_site_label. It must match a number given in _symmetry_equiv_pos_site_id. k, l, and m refer to the translations that are subsequently applied to the symmetry transformed coordinates to generate the atom used. These translations (x,y,z) are related to (k,l,m) by k = 5 + x l = 5 + y m = 5 + z By adding 5 to the translations, the use of negative numbers is avoided.
atcode char [][ _(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]* Character data type for atom names ...