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1009 lines (826 loc) · 30.3 KB
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import ply.yacc as yacc
from pythonql.parser.PythonQLLexer import Lexer
# This function prints out propertly indented program
# based only on the leaf tokens
def print_program(terms):
indent_stack = [""]
buffer = ""
for t in terms:
if t.type == 'NEWLINE':
buffer += "\n"
buffer += indent_stack[-1]
elif t.type == 'INDENT':
if len(indent_stack[-1]):
buffer = buffer[0:-len(indent_stack[-1])]
indent_stack.append( t.value )
buffer += t.value
elif t.type == 'DEDENT':
buffer = buffer[0:-len(indent_stack[-1])]
indent_stack.pop()
buffer += indent_stack[-1]
else:
buffer += t.value + " "
return buffer
# This is a class for a non-terminal node in the
# AST of the PythonQL grammar
class Node:
def __init__(self,label,children):
self.label = label
self.children = children
def __repr__(self):
terms = self.terms()
return " ".join([x[1] for x in terms])
def terms(self):
res = []
for ch in self.children:
if isinstance(ch,Node):
res += ch.terms()
else:
res += [ ch ]
return res
def all_nodes(self):
res = []
for ch in self.children:
if isinstance(ch,Node):
res += [ ch ]
res += ch.all_nodes()
return res
def get_child(self,label):
matches = [n for n in self.all_nodes() if n.label==label]
if len(matches) != 1:
raise Exception("No matches or more than one match in get_child('%s')" % label)
return matches[0]
def get_child_opt(self,label):
matches = [n for n in self.all_nodes() if n.label==label]
if len(matches) > 1:
raise Exception("More than one match in get_child_opt('%s')" % label)
return matches[0] if matches else None
def get_children(self,label):
matches = [n for n in self.all_nodes() if n.label==label]
return matches
# Creates a node with a given name and children from
# the production
def make_node(node_name, p):
return Node(node_name, p[1:])
# Create a list node by collapsing all lists inside the
# production into a single list
def make_list(list_name, p):
list_elements = []
for x in p[1:]:
if isinstance(x,Node) and (x.label.endswith("_list")
or x.label.endswith("_list_opt")):
list_elements += x.children
else:
list_elements.append( x )
return Node(list_name, list_elements)
# Parser class
class Parser:
def __init__(self,lexer=Lexer):
self.lex = Lexer()
self.lex.build()
self.tokens = self.lex.tokens
self.parser = yacc.yacc(module=self,start='file_input',tabmodule='pythonql.parser.parsertab',debug=True)
def parse(self,text):
return self.parser.parse(text)
# Precedence rules
precedence = (
('left', 'OR'),
('left', 'AND'),
('right', 'NOT'),
('left', '<','>','EQUALS','GT_EQ','LT_EQ','NOT_EQ_1','NOT_EQ_2','IN','IS'),
('left', '|'),
('left', '^'),
('left', '&'),
('left', 'LEFT_SHIFT'),
('left', 'RIGHT_SHIFT'),
('left', '+','-'),
('left', '*','/','%','IDIV'),
('left', '@'),
('right', 'UPLUS', 'UMINUS', 'UNOT'))
def p_file_input(self,p):
"""file_input : stmt_or_newline_list"""
p[0] = make_node('file_input', p)
def p_stmt_or_newline_list(self,p):
"""stmt_or_newline_list : NEWLINE
| stmt
| stmt_or_newline_list NEWLINE
| stmt_or_newline_list stmt """
p[0] = make_list('stmt_or_newline_list', p)
def p_decorator(self,p):
"""decorator : '@' dotted_name args_opt NEWLINE"""
p[0] = make_node('decorator', p)
def p_dotted_name(self,p):
"""dotted_name : NAME
| dotted_name '.' NAME"""
p[0] = make_node('dotted_name', p)
def p_args_opt(self,p):
"""args_opt : '(' arg_list ')'
| """
p[0] = make_node('args_opt', p)
def p_decorator_list(self,p):
"""decorator_list : decorator_list decorator
| decorator"""
p[0] = make_list('decorator_list',p)
def p_decorated(self,p):
"""decorated : decorator_list funcdef
| decorator_list classdef"""
p[0] = make_node('decorated', p)
def p_funcdef(self,p):
"""funcdef : DEF NAME parameters signature_opt ':' suite"""
p[0] = make_node('funcdef', p)
def p_signature_opt(self,p):
"""signature_opt : ARROW test
| """
p[0] = make_node('signature_opt', p)
def p_parameters(self,p):
"""parameters : '(' typedargs_list_opt ')'"""
p[0] = make_node('parameters',p)
def p_typedargs_list_opt(self,p):
"""typedargs_list_opt : typedargs_list
| """
p[0] = make_list('typedargs_list_opt', p)
def p_typedargs_list(self,p):
"""typedargs_list : normal_args_list
| normal_args_list ',' star_args_list
| normal_args_list ',' star_args_list ',' double_star_arg
| normal_args_list ',' double_star_arg
| star_args_list ',' double_star_arg
| double_star_arg"""
p[0] = make_list('typeargs_list', p)
def p_normal_args_list(self,p):
"""normal_args_list : normal_args_list ',' normal_arg
| normal_arg"""
p[0] = make_list('normal_args_list', p)
def p_normal_arg(self,p):
"""normal_arg : tpdef
| tpdef '=' test"""
p[0] = make_node('normal_arg', p)
def p_star_args_list(self,p):
"""star_args_list : star_tpdef
| star_tpdef ',' normal_args_list
| star_tpdef ',' double_star_arg
| star_tpdef ',' normal_args_list ',' double_star_arg"""
p[0] = make_list('star_args_list', p)
def p_double_star_arg(self,p):
"""double_star_arg : POWER tpdef"""
p[0] = make_node('double_star_arg', p)
def p_tpdef(self,p):
"""tpdef : NAME
| NAME ':' test"""
p[0] = make_node('tpdef', p)
def p_star_tpdef(self,p):
"""star_tpdef : '*'
| '*' tpdef"""
p[0] = make_node('star_tpdef', p)
def p_stmt(self,p):
"""stmt : simple_stmt
| compound_stmt"""
p[0] = make_node('stmt', p)
def p_simple_stmt(self,p):
"""simple_stmt : small_stmt_list ';' NEWLINE
| small_stmt_list NEWLINE"""
p[0] = make_node('simple_stmt', p)
def p_small_stmt_list(self, p):
"""small_stmt_list : small_stmt
| small_stmt_list ';' small_stmt"""
p[0] = make_list('small_stmt_list', p)
def p_small_stmt(self, p):
"""small_stmt : expr_stmt
| del_stmt
| pass_stmt
| flow_stmt
| import_stmt
| global_stmt
| non_local_stmt
| assert_stmt"""
p[0] = make_node('small_stmt', p)
def p_expr_stmt(self, p):
"""expr_stmt : testlist_star_expr augassign yield_expr
| testlist_star_expr augassign test_list_comma_opt
| testlist_star_expr assign_list"""
p[0] = make_node('expr_stmt', p)
def p_testlist_star_expr(self,p):
"""testlist_star_expr : test comma_opt
| star_expr comma_opt
| testlist_star_expr ',' test comma_opt
| testlist_star_expr ',' star_expr comma_opt"""
p[0] = make_node('testlist_star_expr', p)
def p_comma_opt(self, p):
"""comma_opt : ','
| """
p[0] = make_node('comma_opt',p)
def p_augassign(self, p):
"""augassign : ADD_ASSIGN
| SUB_ASSIGN
| MULT_ASSIGN
| AT_ASSIGN
| AND_ASSIGN
| OR_ASSIGN
| XOR_ASSIGN
| LEFT_SHIFT_ASSIGN
| RIGHT_SHIFT_ASSIGN
| POWER_ASSIGN
| DIV_ASSIGN
| MOD_ASSIGN
| IDIV_ASSIGN"""
p[0] = make_node('augassign', p)
def p_assign_list(self, p):
"""assign_list : '=' yield_expr
| '=' testlist_star_expr
| assign_list '=' yield_expr
| assign_list '=' testlist_star_expr
| """
p[0] = make_node('assign_list', p)
def p_del_stmt(self, p):
"""del_stmt : DEL expr_list"""
p[0] = make_node('del_stmt', p)
def p_pass_stmt(self, p):
"""pass_stmt : PASS"""
p[0] = make_node('pass_stmt', p)
def p_flow_stmt(self, p):
"""flow_stmt : break_stmt
| continue_stmt
| return_stmt
| raise_stmt
| yield_stmt"""
p[0] = make_node('flow_stmt', p)
def p_break_stmt(self, p):
"""break_stmt : BREAK"""
p[0] = make_node('break_stmt', p)
def p_continue_stmt(self, p):
"""continue_stmt : CONTINUE"""
p[0] = make_node('continue_stmt', p)
def p_return_stmt(self, p):
"""return_stmt : RETURN test_list_comma_opt
| RETURN"""
p[0] = make_node('return_stmt', p)
def p_yield_stmt(self, p):
"""yield_stmt : yield_expr"""
p[0] = make_node('yield_stmt', p)
def p_raise_stmt(self, p):
"""raise_stmt : RAISE
| RAISE test
| RAISE test FROM test"""
p[0] = make_node('raise_stmt', p)
def p_import_stmt(self, p):
"""import_stmt : import_name
| import_from"""
p[0] = make_node('import_stmt', p)
def p_import_name(self, p):
"""import_name : IMPORT dotted_as_names"""
p[0] = make_node('import_name', p)
def p_import_from(self, p):
"""import_from : FROM dots_list_opt dotted_name dots_list_opt IMPORT '*'
| FROM dots_list_opt dotted_name dots_list_opt IMPORT '(' import_as_names comma_opt ')'
| FROM dots_list_opt dotted_name dots_list_opt IMPORT import_as_names comma_opt"""
p[0] = make_node('import_from', p)
def p_dots_list_opt(self,p):
"""dots_list_opt : dots_list
| """
p[0] = make_list('dots_list_opt', p)
def p_dots_list(self,p):
"""dots_list : '.'
| ELLIPSIS
| dots_list '.'
| dots_list ELLIPSIS"""
p[0] = make_list('dots_list', p)
def p_import_as_name(self, p):
"""import_as_name : NAME
| NAME AS NAME"""
p[0] = make_node('import_as_name', p)
def p_dotted_as_names(self, p):
"""dotted_as_names : dotted_as_name
| dotted_as_names ',' dotted_as_name"""
p[0] = make_node('dotted_as_name', p)
def p_dotted_as_name(self, p):
"""dotted_as_name : dotted_name
| dotted_name AS NAME"""
p[0] = make_node('dotted_as_name', p)
def p_import_as_names(self, p):
"""import_as_names : import_as_name
| import_as_names ',' import_as_name"""
p[0] = make_node('import_as_names', p)
def p_global_stmt(self, p):
"""global_stmt : GLOBAL name_list"""
p[0] = make_node('global_stmt', p)
def p_name_list(self, p):
"""name_list : NAME
| name_list ',' NAME"""
p[0] = make_list('name_list', p)
def p_non_local_stmt(self, p):
"""non_local_stmt : NONLOCAL name_list"""
p[0] = make_node('non_local_stmt', p)
def p_assert_stmt(self, p):
"""assert_stmt : ASSERT test
| ASSERT test ',' test"""
p[0] = make_node('assert_stmt', p)
def p_compound_stmt(self, p):
"""compound_stmt : if_stmt
| while_stmt
| for_stmt
| try_stmt
| with_stmt
| funcdef
| classdef
| decorated"""
p[0] = make_node('compound_stmt', p)
def p_if_stmt(self, p):
"""if_stmt : IF test ':' suite elif_list else_opt"""
p[0] = make_node('if_stmt', p)
def p_elif_list(self, p):
"""elif_list : elif_list ELIF test ':' suite
| """
p[0] = make_node('elif_list', p)
def p_else_opt(self, p):
"""else_opt : ELSE ':' suite
| """
p[0] = make_node('else_opt', p)
def p_while_stmt(self, p):
"""while_stmt : WHILE test ':' suite else_opt"""
p[0] = make_node('while_stmt', p)
def p_for_stmt(self, p):
"""for_stmt : FOR expr_list IN test_list_comma_opt ':' suite else_opt"""
p[0] = make_node('for_stmt', p)
def p_try_stmt(self, p):
"""try_stmt : TRY ':' suite except_clauses_list else_opt finally_opt
| TRY ':' suite finally"""
p[0] = make_node('try_stmt', p)
def p_except_clauses_list(self, p):
"""except_clauses_list : except_clauses_list except_clause ':' suite
| except_clause ':' suite"""
p[0] = make_list('except_clauses_list', p)
def p_finally_opt(self, p):
"""finally_opt : finally
| """
p[0] = make_node('finally_opt', p)
def p_finally(self, p):
"""finally : FINALLY ':' suite"""
p[0] = make_node('finally', p)
def p_with_stmt(self, p):
"""with_stmt : WITH with_item_list ':' suite"""
p[0] = make_node('with_stmt', p)
def p_with_item_list(self, p):
"""with_item_list : with_item_list with_item
| """
p[0] = make_list('with_item_list', p)
def p_with_item(self, p):
"""with_item : test
| test AS expr"""
p[0] = make_node('with_item', p)
def p_except_clause(self, p):
"""except_clause : EXCEPT test AS NAME
| EXCEPT test
| EXCEPT"""
p[0] = make_node('except_clause', p)
def p_suite(self, p):
"""suite : simple_stmt
| NEWLINE INDENT stmt_list DEDENT"""
p[0] = make_node('suite', p)
def p_stmt_list(self, p):
"""stmt_list : stmt
| stmt_list stmt"""
p[0] = make_list('stmt_list', p)
def p_test(self, p):
"""test : try_catch_expr"""
p[0] = make_node('test', p)
def p_try_catch_expr(self, p):
"""try_catch_expr : old_test
| TRY old_test EXCEPT old_test"""
p[0] = make_node('try_catch_expr', p)
def p_old_test(self, p):
"""old_test : logical
| logical IF logical ELSE old_test
| lambdef"""
p[0] = make_node('old_test', p)
def p_test_nocond(self, p):
"""test_nocond : logical
| lambdef_nocond"""
p[0] = make_node('test_nocond', p)
def p_lambdef(self, p):
"""lambdef : LAMBDA varargs_list ':' test
| LAMBDA ':' test"""
p[0] = make_node('lambdef', p)
def p_lambdef_nocond(self, p):
"""lambdef_nocond : LAMBDA varargs_list ':' test_nocond
| LAMBDA ':' test_nocond"""
p[0] = make_node('lambdef_nocond', p)
def p_varargs_list(self, p):
"""varargs_list : vfpdef_list comma_opt
| vfpdef_list ',' star_vfpdef vfpdef_rest
| vfpdef_list ',' power_vfpdef
| star_vfpdef vfpdef_rest
| power_vfpdef"""
p[0] = make_node('varargs_list', p)
def p_vfpdef_list(self, p):
"""vfpdef_list : NAME
| NAME '=' test
| vfpdef_list ',' NAME
| vfpdef_list ',' NAME '=' test"""
p[0] = make_node('vfpdef_list', p)
def p_star_vfpdef(self, p):
"""star_vfpdef : '*'
| '*' NAME"""
p[0] = make_node('star_vfpdef', p)
def p_vfpdef_rest(self, p):
"""vfpdef_rest : comma_vfpdef_list comma_power_vfpdef"""
p[0] = make_node('vfpdef_rest', p)
def p_comma_vfpdef_list(self, p):
"""comma_vfpdef_list : ',' NAME
| ',' NAME '=' test
| comma_vfpdef_list ',' NAME
| comma_vfpdef_list ',' NAME '=' test
| """
p[0] = make_node('comma_vfpdef_list', p)
def p_comma_power_vfpdef(self, p):
"""comma_power_vfpdef : ',' POWER NAME
| """
p[0] = make_node('comma_power_vfpdef', p)
def p_power_vfpdef(self, p):
"""power_vfpdef : POWER NAME"""
p[0] = make_node('power_vfpdef', p)
def p_logical(self, p):
"""logical : logical AND logical
| logical OR logical
| NOT logical
| is_not_expr"""
p[0] = make_node('logical', p)
def p_is_not_expr(self, p):
"""is_not_expr : is_not_expr IS NOT is_not_expr
| comparison"""
p[0] = make_node('is_not_expr', p)
def p_comparison(self, p):
"""comparison : comparison comp_op comparison
| not_in_expr"""
p[0] = make_node('comparison', p)
def p_comp_op(self, p):
"""comp_op : '<'
| '>'
| EQUALS
| GT_EQ
| LT_EQ
| NOT_EQ_1
| NOT_EQ_2
| IN
| IS"""
p[0] = make_node('comp_op', p)
def p_not_in_expr(self, p):
"""not_in_expr : not_in_expr NOT IN not_in_expr
| path_step"""
p[0] = make_node('not_in_expr', p)
def p_path_step(self, p):
"""path_step : path_step CHILD_AXIS star_expr
| path_step DESCENDENT_AXIS star_expr
| star_expr"""
p[0] = make_node('path_step', p)
def p_star_expr(self, p):
"""star_expr : '*' expr
| expr"""
p[0] = make_node('star_expr', p)
def p_expr(self, p):
"""expr : expr '|' expr
| expr '^' expr
| expr '&' expr
| expr LEFT_SHIFT expr
| expr RIGHT_SHIFT expr
| expr '+' expr
| expr '-' expr
| expr '*' expr
| expr '/' expr
| expr '%' expr
| expr IDIV expr
| expr '@' expr
| factor"""
p[0] = make_node('expr', p)
def p_factor(self, p):
"""factor : '+' expr %prec UPLUS
| '-' expr %prec UMINUS
| '~' expr %prec UNOT
| power"""
p[0] = make_node('factor', p)
def p_power(self, p):
"""power : atom trailer_list_opt
| atom trailer_list_opt POWER factor"""
p[0] = make_node('power', p)
def p_trailer_list_opt(self, p):
"""trailer_list_opt : trailer_list_opt trailer
| """
p[0] = make_list('trailer_list_opt', p)
def p_atom(self, p):
"""atom : NAME
| number
| string_list
| ELLIPSIS
| NONE
| TRUE
| FALSE
| gen_query_expression
| list_query_expression
| set_query_expression"""
p[0] = make_node('atom', p)
def p_string_list(self, p):
"""string_list : string_list string
| string"""
p[0] = make_list('string_list', p)
def p_gen_query_expression(self, p):
"""gen_query_expression : '(' ')'
| '(' yield_expr ')'
| '(' testseq_query ')'"""
p[0] = make_node('gen_query_expression', p)
def p_list_query_expression(self, p):
"""list_query_expression : '[' ']'
| '[' testlist_query ']'"""
p[0] = make_node('list_query_expression', p)
def p_set_query_expression(self, p):
"""set_query_expression : '{' '}'
| '{' dictorsetmaker '}'"""
p[0] = make_node('set_query_expression', p)
def p_query_expression(self, p):
"""query_expression : select_clause first_clause rest_clauses_list_opt"""
p[0] = make_node('query_expression', p)
def p_first_clause(self, p):
"""first_clause : for_clause
| let_clause
| window_clause
| match_clause"""
p[0] = make_node('first_clause', p)
def p_rest_clauses_list_opt(self, p):
"""rest_clauses_list_opt : rest_clauses_list_opt query_clause
| """
p[0] = make_list('rest_clauses_list_opt', p)
def p_query_clause(self, p):
"""query_clause : for_clause
| let_clause
| window_clause
| match_clause
| group_by_clause
| where_clause
| order_by_clause
| count_clause"""
p[0] = make_node('query_clause', p)
def p_query_map_expression(self, p):
"""query_map_expression : map_select_clause first_clause rest_clauses_list_opt"""
p[0] = make_node('query_map_expression', p)
def p_select_clause(self, p):
"""select_clause : SELECT test
| test"""
p[0] = make_node('select_clause', p)
def p_map_select_clause(self, p):
"""map_select_clause : SELECT test ':' test
| test ':' test"""
p[0] = make_node('map_select_clause', p)
def p_for_clause(self, p):
"""for_clause : FOR for_clause_entry_list"""
p[0] = make_node('for_clause', p)
def p_for_clause_entry_list(self, p):
"""for_clause_entry_list : for_clause_entry
| for_clause_entry_list ',' for_clause_entry"""
p[0] = make_list('for_clause_entry_list', p)
def p_for_clause_entry(self, p):
"""for_clause_entry : expr_list IN logical"""
p[0] = make_node('for_clause_entry', p)
def p_let_clause(self, p):
"""let_clause : LET let_clause_entry_list"""
p[0] = make_node('let_clause', p)
def p_let_clause_entry_list(self, p):
"""let_clause_entry_list : let_clause_entry
| let_clause_entry_list ',' let_clause_entry"""
p[0] = make_list('let_clause_entry_list', p)
def p_let_clause_entry(self, p):
"""let_clause_entry : expr_list '=' test"""
p[0] = make_node('let_clause_entry', p)
def p_window_clause(self, p):
"""window_clause : tumbling_window
| sliding_window"""
p[0] = make_node('window_clause', p)
def p_tumbling_window(self, p):
"""tumbling_window : FOR TUMBLING WINDOW NAME IN test window_start_cond window_end_cond_opt"""
p[0] = make_node('tumbling_window', p)
def p_sliding_window(self, p):
"""sliding_window : FOR SLIDING WINDOW NAME IN test window_start_cond window_end_cond"""
p[0] = make_node('sliding_window', p)
def p_window_start_cond(self, p):
"""window_start_cond : START window_vars WHEN test"""
p[0] = make_node('window_start_cond', p)
def p_window_end_cond_opt(self, p):
"""window_end_cond_opt : window_end_cond
| """
p[0] = make_node('window_end_cond_opt', p)
def p_window_end_cond(self, p):
"""window_end_cond : ONLY END window_vars WHEN test
| END window_vars WHEN test"""
p[0] = make_node('window_end_cond', p)
def p_window_vars(self, p):
"""window_vars : current_item_opt positional_var_opt previous_var_opt following_var_opt"""
p[0] = make_node('window_vars', p)
def p_current_item_opt(self, p):
"""current_item_opt : NAME
| """
p[0] = make_node('current_item_opt', p)
def p_positional_var_opt(self, p):
"""positional_var_opt : AT NAME
| """
p[0] = make_node('positional_var_opt', p)
def p_previous_var_opt(self, p):
"""previous_var_opt : PREVIOUS NAME
| """
p[0] = make_node('previous_var_opt', p)
def p_following_var_opt(self, p):
"""following_var_opt : FOLLOWING NAME
| """
p[0] = make_node('following_var_opt', p)
def p_match_clause(self,p):
"""match_clause : MATCH exact_or_filter_opt pattern_object IN test"""
p[0] = make_node('match_clause', p)
def p_exact_or_filter_opt(self,p):
"""exact_or_filter_opt : EXACT
| FILTER
| """
p[0] = make_node('exact_or_filter_opt',p)
def p_pattern_object(self,p):
"""pattern_object : '{' pattern_object_list '}' as_opt"""
p[0] = make_node('pattern_object',p)
def p_as_opt(self,p):
"""as_opt : AS NAME
| """
p[0] = make_node('as_opt',p)
def p_pattern_object_list(self,p):
"""pattern_object_list : pattern_object_element
| pattern_object_list ',' pattern_object_element"""
p[0] = make_list('pattern_object_list', p)
def p_pattern_object_element(self,p):
"""pattern_object_element : STRING_LITERAL ':' STRING_LITERAL
| STRING_LITERAL ':' AS NAME WHERE test
| STRING_LITERAL ':' AS NAME
| STRING_LITERAL ':' WHERE test
| STRING_LITERAL ':' NAME
| STRING_LITERAL ':' pattern_object"""
p[0] = make_node('pattern_object_element', p)
def p_order_by_clause(self, p):
"""order_by_clause : ORDER BY order_list"""
p[0] = make_node('order_by_clause', p)
def p_order_list(self, p):
"""order_list : order_element
| order_list ',' order_element"""
p[0] = make_list('order_list', p)
def p_order_element(self, p):
"""order_element : test
| test ASC
| test DESC"""
p[0] = make_node('order_element', p)
def p_group_by_clause(self, p):
"""group_by_clause : GROUP BY group_by_var_list"""
p[0] = make_node('group_by_clause', p)
def p_group_by_var_list(self, p):
"""group_by_var_list : group_by_var
| group_by_var_list ',' group_by_var"""
p[0] = make_list('group_by_var_list', p)
def p_group_by_var(self, p):
"""group_by_var : old_test
| old_test AS NAME"""
p[0] = make_node('group_by_var', p)
def p_where_clause(self,p):
"""where_clause : WHERE test
| IF test"""
p[0] = make_node('where_clause', p)
def p_count_clause(self, p):
"""count_clause : COUNT NAME"""
p[0] = make_node('count', p)
def p_testseq_query(self, p):
"""testseq_query : test_as_list comma_opt
| query_expression"""
p[0] = make_node('testseq_query', p)
def p_test_as_list(self, p):
"""test_as_list : test_as
| test_as_list ',' test_as """
p[0] = make_list('test_as_list', p)
def p_test_as(self, p):
"""test_as : test
| test AS NAME"""
p[0] = make_node('test_as', p)
def p_testlist_query(self, p):
"""testlist_query : test_list_comma_opt
| query_expression"""
p[0] = make_node('testlist_query', p)
def p_trailer(self, p):
"""trailer : '(' ')'
| '(' arg_list ')'
| '[' subscript_list ']'
| '.' NAME"""
p[0] = make_node('trailer', p)
def p_subscript_list(self, p):
"""subscript_list : subscript
| subscript_list ',' subscript"""
p[0] = make_list('subscript_list', p)
def p_subscript(self, p):
"""subscript : test
| test_opt ':' test_opt sliceop"""
p[0] = make_node('subscript', p)
def p_test_opt(self, p):
"""test_opt : test
| """
p[0] = make_node('test_opt', p)
def p_sliceop(self, p):
"""sliceop : ':' test
| ':'
| """
p[0] = make_node('sliceop', p)
def p_expr_list(self, p):
"""expr_list : star_expr
| expr_list ',' star_expr"""
p[0] = make_list('expr_list', p)
def p_test_list(self, p):
"""test_list : test
| test_list ',' test"""
p[0] = make_list('test_list', p)
def p_test_list_comma_opt(self, p):
"""test_list_comma_opt : test_list comma_opt"""
p[0] = make_list('test_list_comma_opt', p)
def p_dictorsetmaker(self, p):
"""dictorsetmaker : test_map_list_comma_opt
| query_map_expression
| test_list_comma_opt
| query_expression"""
p[0] = make_node('dictorsetmaker', p)
def p_test_map_list_comma_opt(self, p):
"""test_map_list_comma_opt : test_map_list"""
p[0] = make_list('test_map_list_comma_opt', p)
def p_test_map_list(self, p):
"""test_map_list : test ':' test
| test_map_list ',' test ':' test"""
p[0] = make_list('test_map_list', p)
def p_classdef(self, p):
"""classdef : CLASS NAME '(' arg_list ')' ':' suite
| CLASS NAME '(' ')' ':' suite
| CLASS NAME ':' suite"""
p[0] = make_node('classdef', p)
def p_arg_list(self, p):
"""arg_list : argument_list_opt_comma argument comma_opt
| argument_list_opt_comma '*' test ',' argument_list_opt
| argument_list_opt_comma '*' test ',' argument_list_opt ',' POWER test
| argument_list_opt_comma POWER test"""
p[0] = make_list('arg_list', p)
# An optional arg list with a comma at the end
def p_argument_list_opt_comma(self, p):
"""argument_list_opt_comma : argument_list_opt_comma argument ','
| """
p[0] = make_list('argument_list_opt_comma', p)
def p_argument_list_opt(self, p):
"""argument_list_opt : argument_list
| """
p[0] = make_list('argument_list_opt', p)
def p_argument_list(self, p):
"""argument_list : argument
| argument_list ',' argument"""
p[0] = make_list('argument_list', p)
def p_argument(self, p):
"""argument : test
| test comp_for
| test '=' test"""
p[0] = make_node('argument', p)
def p_comp_iter(self, p):
"""comp_iter : comp_for
| comp_if"""
p[0] = make_node('comp_iter', p)
def p_comp_for(self, p):
"""comp_for : FOR expr_list IN logical comp_iter_opt"""
p[0] = make_node('comp_for', p)
def p_comp_if(self, p):
"""comp_if : IF test_nocond comp_iter_opt"""
p[0] = make_node('comp_if', p)
def p_comp_iter_opt(self, p):
"""comp_iter_opt : comp_iter
| """
p[0] = make_node('comp_iter_opt', p)
def p_yield_expr(self, p):
"""yield_expr : YIELD yield_arg
| YIELD"""
p[0] = make_node('yield_expr', p)
def p_yield_arg(self, p):
"""yield_arg : FROM test
| test_list_comma_opt"""
p[0] = make_node('yield_arg', p)
def p_string(self, p):
"""string : STRING_LITERAL
| LONG_STRING_LITERAL"""
p[0] = make_node('string', p)
def p_number(self,p):
"""number : integer
| FLOAT_NUMBER
| IMAG_NUMBER"""
p[0] = make_node('number', p)
def p_integer(self, p):
"""integer : DECIMAL_INTEGER
| OCT_INTEGER
| HEX_INTEGER
| BIN_INTEGER"""
p[0] = make_node('integer', p)
def p_error(self,p):
raise Exception("Syntax error at line %d, column %d, token '%s'" % (p.lineno,p.value.column,p.value.value))
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