teaching/muMLE
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add concrete syntax for class diagrams + example (woods2.py)

Browse source
This commit is contained in:
Joeri Exelmans 2024-10-09 15:09:16 +02:00
parent c248fc9090
commit 52ded8af77
6 changed files with 311 additions and 58 deletions
Download patch file Download diff file Expand all files Collapse all files

41
concrete_syntax/textual_od/parser.py
View file

@ -1,9 +1,10 @@
# Parser for Object Diagrams textual concrete syntax
from lark import Lark, logger, Transformer
from lark import Lark, logger
from lark.indenter import Indenter
from services.od import OD
from services.scd import SCD
from concrete_syntax.common import _Code, TBase
from uuid import UUID
grammar = r"""
@ -39,12 +40,6 @@ slot: IDENTIFIER "=" literal ";"
parser = Lark(grammar, parser='lalr')
# internal use only
# just a dumb wrapper to distinguish between code and string
class _Code:
def __init__(self, code):
self.code = code
# given a concrete syntax text string, and a meta-model, parses the CS
def parse_od(state, m_text, mm):
tree = parser.parse(m_text)
@ -54,41 +49,11 @@ def parse_od(state, m_text, mm):
int_mm_id = UUID(state.read_value(state.read_dict(state.read_root(), "Integer")))
class T(Transformer):
class T(TBase):
def __init__(self, visit_tokens):
super().__init__(visit_tokens)
self.obj_counter = 0
def IDENTIFIER(self, token):
return str(token)
def INT(self, token):
return int(token)
def BOOL(self, token):
return token == "True"
def STR(self, token):
return str(token[1:-1]) # strip the "" or ''
def CODE(self, token):
return _Code(str(token[1:-1])) # strip the ``
def INDENTED_CODE(self, token):
skip = 4 # strip the ``` and the following newline character
space_count = 0
while token[skip+space_count] == " ":
space_count += 1
lines = token.split('\n')[1:-1]
for line in lines:
if len(line) >= space_count and line[0:space_count] != ' '*space_count:
raise Exception("wrong indentation of INDENTED_CODE")
unindented_lines = [l[space_count:] for l in lines]
return _Code('\n'.join(unindented_lines))
def literal(self, el):
return el[0]
def link_spec(self, el):
[src, tgt] = el
return (src, tgt)