| Data type | Regexp | Description |
|---|
| any | .* | A catch all for items that may take any form... |
| atcode | [][ _(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]* | Character data type for atom names ... |
| binary | \n--CIF-BINARY-FORMAT-SECTION--\n\ [][ \n\t()_,.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*\ \n--CIF-BINARY-FORMAT-SECTION---- | 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. |
| code | [_,.;:"&<>()/\{}'`~!@#$%A-Za-z0-9*|+-]* | code item types/single words ... |
| email | [_,.;:"&<>/\{}'`~!@#$%A-Za-z0-9*|+-]* | code item types/single words (case insensitive) ... |
| fax | [_,.;:"&<>/\{}'`~!@#$%A-Za-z0-9*|+-]* | code item types/single words (case insensitive) ... |
| float | -?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)? | int item types are the subset of numbers that are the floating numbers. |
| float-range | -?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?(--?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?)? | int item types are the subset of numbers that are the floating numbers. |
| framecode | [.;:"&<>(){}'`~!$%A-Za-z0-9*|+-][_.;:"&<>(){}'`~!$%A-Za-z0-9*|+-]* | A value that points to a save frame. |
| idname | [_A-Za-z0-9]+ | idname item types take the form... |
| int | -?[0-9]+ | int item types are the subset of numbers that are the negative or positive integers. |
| int-range | -?[0-9]+(--?[0-9]+)? | int item types are the subset of numbers that are the negative or positive integers with optional range. |
| line | [][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]* | char item types / multi-word items ... |
| name | _[_A-Za-z0-9]+\.[][_A-Za-z0-9%-]+ | name item types take the form... |
| phone | [_,.;:"&<>/\{}'`~!@#$%A-Za-z0-9*|+-]* | code item types/single words (case insensitive) ... |
| symop | ([1-9]|[1-9][0-9]|1[0-8][0-9]|19[0-2])(_[1-9][1-9][1-9])? | symop item types take the form n_klm, where n refers to the symmetry operation that is applied to the coordinates in the ATOM_SITE category identified by _atom_site_label. It must match a number given in _symmetry_equiv_pos_site_id. k, l, and m refer to the translations that are subsequently applied to the symmetry transformed coordinates to generate the atom used. These translations (x,y,z) are related to (k,l,m) by k = 5 + x l = 5 + y m = 5 + z By adding 5 to the translations, the use of negative numbers is avoided. |
| text | [][ \n\t()_,.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]* | text item types / multi-line text ... |
| uchar1 | [+]?[A-Za-z0-9] | data item for 1 character codes |
| uchar3 | [+]?[A-Za-z0-9]?[A-Za-z0-9][A-Za-z0-9] | data item for 3 character codes |
| ucode | [_,.;:"&<>()/\{}'`~!@#$%A-Za-z0-9*|+-]* | code item types/single words (case insensitive) ... |
| uline | [][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]* | char item types / multi-word items (case insensitive)... |
| yes_no | (yes)|(no) | data item for boolean codes that have values of 'yes' or 'no' |
| yyyy-mm-dd | [0-9]?[0-9]?[0-9][0-9]-[0-9]?[0-9]-[0-9][0-9] | Standard format for CIF dates. |
| yyyy-mm-dd:hh:mm | [0-9]?[0-9]?[0-9][0-9]-[0-9]?[0-9](-[0-9]?[0-9])?(:[0-9]?[0-9]:[0-9][0-9])? | Standard format for CIF dates with optional time stamp. |
