Python: module PyZ3950/ccl

PyZ3950/ccl

index
/home/asl2/src/PyZ2/PyZ3950/PyZ3950/ccl.py

Implements part of CCL, the Common Command Language, ISO 8777. I'm working from the description in the YAZ toolkit (http://www.indexdata.dk/yaz/doc/tools.php), rather than the ISO spec. Two extensions: - qualifiers can be literal "(attrtyp, attrval)" pairs, so, e.g., the following is a legitimate for ISBN: "(1,7)=0312033095" - the optional ATTRSET (attrset/query) which must appear at the beginning of the string. Allowed values are: BIB1 (default) XD1 UTIL ZTHES1 EXP1 or an oid expressed as a dotted string. (A leading dot implies a prefix of 1.2.840.1003.3, so, e.g., .1 is the same as BIB1.) Eventually I will support v3-style mixing attribute sets within a single query, but for now I don't.

Modules

PyZ3950.asn1
lex

PyZ3950.oids
string

yacc
PyZ3950.z3950

Classes

exceptions.Exception

QuerySyntaxError

LexError
ParseError
UnimplError

Node

QuallistVal

class LexError(QuerySyntaxError)

Method resolution order:: LexError; QuerySyntaxError; exceptions.Exception

Data and non-method functions defined here:

__doc__ = None

__module__ = 'PyZ3950/ccl': str(object) -> string Return a nice string representation of the object. If the argument is a string, the return value is the same object.

Methods inherited from exceptions.Exception:

__getitem__(...)

__init__(...)

__str__(...)

class Node

Methods defined here:

__init__(self, type, children=None, leaf=None)

__str__(self)

str_child(self, child, depth)

str_depth(self, depth)

Data and non-method functions defined here:

__doc__ = None

__module__ = 'PyZ3950/ccl': str(object) -> string Return a nice string representation of the object. If the argument is a string, the return value is the same object.

class ParseError(QuerySyntaxError)

Method resolution order:: ParseError; QuerySyntaxError; exceptions.Exception

Data and non-method functions defined here:

__doc__ = None

__module__ = 'PyZ3950/ccl': str(object) -> string Return a nice string representation of the object. If the argument is a string, the return value is the same object.

Methods inherited from exceptions.Exception:

__getitem__(...)

__init__(...)

__str__(...)

class QuallistVal

Methods defined here:

__getitem__(self, i)

__init__(self, quallist, val)

__str__(self)

Data and non-method functions defined here:

__doc__ = None

__module__ = 'PyZ3950/ccl': str(object) -> string Return a nice string representation of the object. If the argument is a string, the return value is the same object.

class QuerySyntaxError(exceptions.Exception)

Data and non-method functions defined here:

__doc__ = None

__module__ = 'PyZ3950/ccl': str(object) -> string Return a nice string representation of the object. If the argument is a string, the return value is the same object.

Methods inherited from exceptions.Exception:

__getitem__(...)

__init__(...)

__str__(...)

class UnimplError(QuerySyntaxError)

Method resolution order:: UnimplError; QuerySyntaxError; exceptions.Exception

Data and non-method functions defined here:

__doc__ = None

__module__ = 'PyZ3950/ccl': str(object) -> string Return a nice string representation of the object. If the argument is a string, the return value is the same object.

Methods inherited from exceptions.Exception:

__getitem__(...)

__init__(...)

__str__(...)

Data
		__file__ = './PyZ3950/ccl.pyc' __name__ = 'PyZ3950/ccl' _attrdict = {'bib1': OID: 1 2 840 10003 3 1, 'exp1': OID: 1 2 840 10003 3 2, 'utility': OID: 1 2 840 10003 3 11, 'xd1': OID: 1 2 840 10003 3 12, 'zthes1': OID: 1 2 840 10003 3 13} default_quals = ['ANY'] default_relop = '=' in_setup = 0 lexer = <lex.Lexer instance> nested_scopes = _Feature((2, 1, 0, 'beta', 1), (2, 2, 0, 'alpha', 0), 16) precedence = (('left', 'LOGOP'),) qual_dict = {'AIF': (3, 3), 'ANY': (1, 1016), 'AU': (1, 1003), 'FIF': (3, 1), 'ISBN': (1, 7), 'LCCN': (1, 9), 'NOTRUNC': (5, 100), 'RTRUNC': (5, 1), 'TI': (1, 4)} r = '>' relop_to_attrib = {'<': 1, '<=': 2, '<>': 6, '=': 3, '>': 5, '>=': 4} t_COMMA = ',' t_LPAREN = r'\(' t_RELOP = '(>=)\|(<>)\|(<=)\|(=)\|(<)\|(>)' t_RPAREN = r'\)' t_SLASH = '/' t_WORD = r"([a-z]\|[A-Z]\|[0-9]\|&\|:)([a-z]\|[A-Z]\|[0-9]\|&\|:\|,\|\.\|')" t_ignore* = ' \t' tokens = ('LPAREN', 'RPAREN', 'COMMA', 'SET', 'ATTRSET', 'QUAL', 'QUOTEDVALUE', 'RELOP', 'WORD', 'LOGOP', 'SLASH') word_init = '[a-z]\|[A-Z]\|[0-9]\|&\|:' word_non_init = r",\|\.\|'"