kodexa.selectors.parserules

XPath parsing rules.

To understand how this module works, it is valuable to have a strong understanding of the ply <http://www.dabeaz.com/ply/> module.

Module Contents

Functions

p_expr_boolean(p)	Expr : Expr OR_OP Expr
p_expr_unary(p)	Expr : MINUS_OP Expr %prec UMINUS_OP
p_expr_pipeline(p)	Expr : Expr PIPELINE_OP Expr
p_path_expr_binary(p)	Expr : FilterExpr PATH_SEP RelativeLocationPath
p_path_expr_unary(p)	Expr : RelativeLocationPath
p_absolute_location_path_rootonly(p)	AbsoluteLocationPath : PATH_SEP
p_absolute_location_path_subpath(p)	AbsoluteLocationPath : PATH_SEP RelativeLocationPath
p_abbreviated_absolute_location_path(p)	AbbreviatedAbsoluteLocationPath : ABBREV_PATH_SEP RelativeLocationPath
p_relative_location_path_simple(p)	RelativeLocationPath : Step
p_relative_location_path_binary(p)	RelativeLocationPath : RelativeLocationPath PATH_SEP Step
p_step_nodetest(p)	Step : NodeTest
p_step_nodetest_predicates(p)	Step : NodeTest PredicateList
p_step_axis_nodetest(p)	Step : AxisSpecifier NodeTest
p_step_axis_nodetest_predicates(p)	Step : AxisSpecifier NodeTest PredicateList
p_step_abbrev(p)	Step : ABBREV_STEP_SELF
p_axis_specifier_full(p)	AxisSpecifier : AXISNAME AXIS_SEP
p_axis_specifier_abbrev(p)	AxisSpecifier : ABBREV_AXIS_AT
p_node_test_name_test(p)	NodeTest : NameTest
p_node_test_type_simple(p)	NodeTest : NODETYPE OPEN_PAREN CLOSE_PAREN
p_node_test_type_literal(p)	NodeTest : NODETYPE OPEN_PAREN LITERAL CLOSE_PAREN
p_name_test_star(p)	NameTest : STAR_OP
p_name_test_prefix_star(p)	NameTest : NCNAME COLON STAR_OP
p_name_test_qname(p)	NameTest : QName
p_qname_prefixed(p)	QName : NCNAME COLON NCNAME
p_qname_unprefixed(p)	QName : NCNAME
p_funcqname_prefixed(p)	FuncQName : NCNAME COLON FUNCNAME
p_funcqname_unprefixed(p)	FuncQName : FUNCNAME
p_filter_expr_simple(p)	FilterExpr : VariableReference
p_filter_expr_grouped(p)	FilterExpr : OPEN_PAREN Expr CLOSE_PAREN
p_filter_expr_predicate(p)	FilterExpr : FilterExpr Predicate
p_predicate_list_single(p)	PredicateList : Predicate
p_predicate_list_recursive(p)	PredicateList : PredicateList Predicate
p_predicate(p)	Predicate : OPEN_BRACKET Expr CLOSE_BRACKET
p_variable_reference(p)	VariableReference : DOLLAR QName
p_number(p)	Number : FLOAT
p_function_call(p)	FunctionCall : FuncQName FormalArguments
p_formal_arguments_empty(p)	FormalArguments : OPEN_PAREN CLOSE_PAREN
p_formal_arguments_list(p)	FormalArguments : OPEN_PAREN ArgumentList CLOSE_PAREN
p_argument_list_single(p)	ArgumentList : Expr
p_argument_list_recursive(p)	ArgumentList : ArgumentList COMMA Expr
p_error(p)

Attributes

precedence

kodexa.selectors.parserules.precedence = [['left', 'OR_OP'], ['left', 'AND_OP'], ['left', 'EQUAL_OP'], ['left', 'REL_OP'], ['left',...

kodexa.selectors.parserules.p_expr_boolean(p)

ExprExpr OR_OP Expr

Expr AND_OP Expr

Expr EQUAL_OP Expr

Expr REL_OP Expr

Expr PLUS_OP Expr

Expr MINUS_OP Expr

Expr MULT_OP Expr

Expr DIV_OP Expr

Expr MOD_OP Expr

Expr UNION_OP Expr

Expr INTERSECT_OP Expr

kodexa.selectors.parserules.p_expr_unary(p)

Expr : MINUS_OP Expr %prec UMINUS_OP

kodexa.selectors.parserules.p_expr_pipeline(p)

Expr : Expr PIPELINE_OP Expr

kodexa.selectors.parserules.p_path_expr_binary(p)

ExprFilterExpr PATH_SEP RelativeLocationPath

FilterExpr ABBREV_PATH_SEP RelativeLocationPath

kodexa.selectors.parserules.p_path_expr_unary(p)

ExprRelativeLocationPath

AbsoluteLocationPath

AbbreviatedAbsoluteLocationPath

FilterExpr

kodexa.selectors.parserules.p_absolute_location_path_rootonly(p)

AbsoluteLocationPath : PATH_SEP

kodexa.selectors.parserules.p_absolute_location_path_subpath(p)

AbsoluteLocationPath : PATH_SEP RelativeLocationPath

kodexa.selectors.parserules.p_abbreviated_absolute_location_path(p)

AbbreviatedAbsoluteLocationPath : ABBREV_PATH_SEP RelativeLocationPath

kodexa.selectors.parserules.p_relative_location_path_simple(p)

RelativeLocationPath : Step

kodexa.selectors.parserules.p_relative_location_path_binary(p)

RelativeLocationPathRelativeLocationPath PATH_SEP Step

RelativeLocationPath ABBREV_PATH_SEP Step

kodexa.selectors.parserules.p_step_nodetest(p)

Step : NodeTest

kodexa.selectors.parserules.p_step_nodetest_predicates(p)

Step : NodeTest PredicateList

kodexa.selectors.parserules.p_step_axis_nodetest(p)

Step : AxisSpecifier NodeTest

kodexa.selectors.parserules.p_step_axis_nodetest_predicates(p)

Step : AxisSpecifier NodeTest PredicateList

kodexa.selectors.parserules.p_step_abbrev(p)

StepABBREV_STEP_SELF

ABBREV_STEP_PARENT

kodexa.selectors.parserules.p_axis_specifier_full(p)

AxisSpecifier : AXISNAME AXIS_SEP

kodexa.selectors.parserules.p_axis_specifier_abbrev(p)

AxisSpecifier : ABBREV_AXIS_AT

kodexa.selectors.parserules.p_node_test_name_test(p)

NodeTest : NameTest

kodexa.selectors.parserules.p_node_test_type_simple(p)

NodeTest : NODETYPE OPEN_PAREN CLOSE_PAREN

kodexa.selectors.parserules.p_node_test_type_literal(p)

NodeTest : NODETYPE OPEN_PAREN LITERAL CLOSE_PAREN

kodexa.selectors.parserules.p_name_test_star(p)

NameTest : STAR_OP

kodexa.selectors.parserules.p_name_test_prefix_star(p)

NameTest : NCNAME COLON STAR_OP

kodexa.selectors.parserules.p_name_test_qname(p)

NameTest : QName

kodexa.selectors.parserules.p_qname_prefixed(p)

QName : NCNAME COLON NCNAME

kodexa.selectors.parserules.p_qname_unprefixed(p)

QName : NCNAME

kodexa.selectors.parserules.p_funcqname_prefixed(p)

FuncQName : NCNAME COLON FUNCNAME

kodexa.selectors.parserules.p_funcqname_unprefixed(p)

FuncQName : FUNCNAME

kodexa.selectors.parserules.p_filter_expr_simple(p)

FilterExprVariableReference

LITERAL

Number

FunctionCall

kodexa.selectors.parserules.p_filter_expr_grouped(p)

FilterExpr : OPEN_PAREN Expr CLOSE_PAREN

kodexa.selectors.parserules.p_filter_expr_predicate(p)

FilterExpr : FilterExpr Predicate

kodexa.selectors.parserules.p_predicate_list_single(p)

PredicateList : Predicate

kodexa.selectors.parserules.p_predicate_list_recursive(p)

PredicateList : PredicateList Predicate

kodexa.selectors.parserules.p_predicate(p)

Predicate : OPEN_BRACKET Expr CLOSE_BRACKET

kodexa.selectors.parserules.p_variable_reference(p)

VariableReference : DOLLAR QName

kodexa.selectors.parserules.p_number(p)

NumberFLOAT

INTEGER

kodexa.selectors.parserules.p_function_call(p)

FunctionCall : FuncQName FormalArguments

kodexa.selectors.parserules.p_formal_arguments_empty(p)

FormalArguments : OPEN_PAREN CLOSE_PAREN

kodexa.selectors.parserules.p_formal_arguments_list(p)

FormalArguments : OPEN_PAREN ArgumentList CLOSE_PAREN

kodexa.selectors.parserules.p_argument_list_single(p)

ArgumentList : Expr

kodexa.selectors.parserules.p_argument_list_recursive(p)

ArgumentList : ArgumentList COMMA Expr

kodexa.selectors.parserules.p_error(p)