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from ply.yacc import yacc
from qls.parser.lexer import QLSLexer
class QLSParser:
def __init__(self):
self.__errors = []
self.__tokens = QLSLexer.tokens
self.__parser = None
@property
def errors(self):
return self.__errors
@property
def tokens(self):
return self.__tokens
@property
def parser(self):
return self.__parser
def build(self):
self.__parser = yacc(module=self)
def parse(self, data, lexer):
return self.parser.parse(data, lexer)
@staticmethod
def p_stylesheet(production):
"""stylesheet : STYLESHEET IDENTIFIER LEFT_BRACE pages RIGHT_BRACE"""
production[0] = ('STYLESHEET', production[2], production[4])
# Statements
@staticmethod
def p_pages(production):
"""pages : page pages
| page"""
if len(production) == 3:
production[0] = [production[1]] + production[2]
elif len(production) == 2:
production[0] = [production[1]]
@staticmethod
def p_page(production):
"""page : PAGE IDENTIFIER LEFT_BRACE sections RIGHT_BRACE
| PAGE IDENTIFIER LEFT_BRACE sections default RIGHT_BRACE
| PAGE IDENTIFIER LEFT_BRACE default RIGHT_BRACE"""
if len(production) == 6:
production[0] = ('PAGE', production[2], production[4])
elif len(production) == 7:
production[0] = ('PAGE', production[2], production[4], production[5])
@staticmethod
def p_sections(production):
"""sections : section sections
| section"""
if len(production) == 3:
production[0] = [production[1]] + production[2]
elif len(production) == 2:
production[0] = [production[1]]
@staticmethod
def p_statement(production):
"""statement : section
| question"""
production[0] = production[1]
@staticmethod
def p_statements(production):
"""statements : statement statements
| statement"""
if len(production) == 3:
production[0] = [production[1]] + production[2]
elif len(production) == 2:
production[0] = [production[1]]
@staticmethod
def p_section(production):
"""section : SECTION STRING_LITERAL LEFT_BRACE statements RIGHT_BRACE
| SECTION STRING_LITERAL LEFT_BRACE statements default RIGHT_BRACE
| SECTION STRING_LITERAL question
| SECTION STRING_LITERAL default"""
if len(production) == 4:
production[0] = ('SECTION', production[2], [production[3]])
elif len(production) == 6:
production[0] = ('SECTION', production[2], production[4])
elif len(production) == 7:
production[0] = ('SECTION', production[2], production[4], production[5])
@staticmethod
def p_question(production):
"""question : QUESTION IDENTIFIER"""
production[0] = ('QUESTION', production[2])
@staticmethod
def p_question_properties(production):
"""question : QUESTION IDENTIFIER WIDGET widget"""
production[0] = ('QUESTION', production[2], production[4])
@staticmethod
def p_default(production):
"""default : DEFAULT type LEFT_BRACE properties RIGHT_BRACE"""
production[0] = ('DEFAULT', production[2], production[4])
@staticmethod
def p_default_widget(production):
"""default : DEFAULT type WIDGET widget"""
production[0] = ('DEFAULT', production[2], production[3])
# Properties
@staticmethod
def p_properties(production):
"""properties : property properties
| property"""
if len(production) == 3:
production[0] = [production[1]] + production[2]
elif len(production) == 2:
production[0] = [production[1]]
@staticmethod
def p_height(production):
"""property : HEIGHT COLON INTEGER_LITERAL"""
production[0] = ('HEIGHT', production[3])
@staticmethod
def p_width(production):
"""property : WIDTH COLON INTEGER_LITERAL"""
production[0] = ('WIDTH', production[3])
@staticmethod
def p_font(production):
"""property : FONT COLON STRING_LITERAL"""
production[0] = ('FONT', production[3])
@staticmethod
def p_font_size(production):
"""property : FONT_SIZE COLON INTEGER_LITERAL"""
production[0] = ('FONT_SIZE', production[3])
@staticmethod
def p_color(production):
"""property : COLOR COLON HEX_COLOR"""
production[0] = ('COLOR', production[3])
@staticmethod
def p_widget(production):
"""property : WIDGET widget"""
production[0] = ('WIDGET', production[2])
# Widgets
@staticmethod
def p_calendar(production):
"""widget : CALENDAR"""
production[0] = 'CALENDAR'
@staticmethod
def p_checkbox(production):
"""widget : CHECKBOX"""
production[0] = 'CHECKBOX'
@staticmethod
def p_line_edit(production):
"""widget : LINE_EDIT"""
production[0] = 'LINE_EDIT'
@staticmethod
def p_spinbox(production):
"""widget : SPINBOX"""
production[0] = 'SPINBOX'
@staticmethod
def p_radio_default(production):
"""widget : RADIO"""
production[0] = 'RADIO'
@staticmethod
def p_radio(production):
"""widget : RADIO LEFT_BRACKET STRING_LITERAL COMMA STRING_LITERAL RIGHT_BRACKET"""
production[0] = ('RADIO', production[3], production[5])
# Types
@staticmethod
def p_boolean(production):
"""type : BOOLEAN"""
production[0] = 'BOOLEAN'
@staticmethod
def p_decimal(production):
"""type : DECIMAL"""
production[0] = 'DECIMAL'
@staticmethod
def p_string(production):
"""type : STRING"""
production[0] = 'STRING'
@staticmethod
def p_date(production):
"""type : DATE"""
production[0] = 'DATE'
@staticmethod
def p_money(production):
"""type : MONEY"""
production[0] = 'MONEY'
@staticmethod
def p_integer(production):
"""type : INTEGER"""
production[0] = 'INTEGER'
def p_error(self, production):
self.errors.append('Syntax error at line {}, token={}'.format(production.lineno, production.type))
|
