124 lines
3.8 KiB
Python
124 lines
3.8 KiB
Python
from csv import reader as csv_reader
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from pprint import pformat
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from pprint import pp as pprint
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from sys import argv, stderr
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from xml.dom.minidom import parseString as xml_parser
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from xml.etree import ElementTree
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class System:
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"""Represents an L-System"""
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def __init__(
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self,
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name: str,
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base: list[str],
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axiom: str,
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substitutions: list[tuple[str, str]],
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interpretations: list[tuple[str, str]],
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):
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self.name = name
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"""System name"""
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self.base = base
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"""Set used"""
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self.axiom = axiom
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"""Axiom used at the start of iterations"""
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self.substitutions = substitutions
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"""
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Substitution for each member of the base,
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represented as a couple (member, substitution)
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"""
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self.interpretations = interpretations
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"""
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Interpretation for each member of the base,
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represented as a couple (member, interpretation)
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"""
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# TODO: Est-ce que on garde ça ??
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# Interpretation of extra symbols added if necessary
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extra_symbols = ["[", "]"]
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for _, substitution in substitutions:
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if any(symbol in substitution for symbol in extra_symbols):
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self.interpretations.extend(
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[(extra_symbols[0], "STORE"), (extra_symbols[1], "RESTORE")]
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)
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break
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def __repr__(self):
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return pformat(self.__dict__, compact=True, width=120, sort_dicts=False)
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def to_xml(self) -> ElementTree.Element:
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"""Convert the current system into an XML element"""
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system = ElementTree.Element("lsystem")
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base = ElementTree.SubElement(system, "base")
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base.text = "".join(self.base)
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axiom = ElementTree.SubElement(system, "axiom")
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axiom.text = self.axiom
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substitutions = ElementTree.SubElement(system, "substitutions")
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for member, substitution in self.substitutions:
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sub_element = ElementTree.SubElement(substitutions, "substitution")
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sub_element.set("member", member)
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sub_element.text = substitution
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interpretations = ElementTree.SubElement(system, "interpretations")
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for member, interpretation in self.interpretations:
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inter_element = ElementTree.SubElement(interpretations, "interpretation")
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inter_element.set("member", member)
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inter_element.text = interpretation
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return system
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def data_reader(path: str, delimiter: str = ","):
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"""Read a CSV file and returns a list of L-System"""
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res: list[System] = []
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with open(path) as csv_file:
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data = csv_reader(csv_file, delimiter=delimiter)
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for system in data:
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name = system[0]
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base = list(system[1])
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axiom = system[2]
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substitutions = [(v, system[3 + i]) for i, v in enumerate(base)]
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interpretations = [
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(v, system[3 + i + len(substitutions)]) for i, v in enumerate(base)
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]
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res.append(System(name, base, axiom, substitutions, interpretations))
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return res
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def lsystems_xml(systems: list[System]) -> ElementTree.Element:
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"""Convert list of L-system structure into XML"""
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root = ElementTree.Element("lsystems")
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for system in systems:
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root.append(system.to_xml())
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return root
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if __name__ == "__main__":
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if len(argv) != 2:
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pprint(f"Syntax error:\n\tpython {argv[0]} file.csv", stream=stderr)
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exit(1)
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# TODO: Check if we have to dump to stdout or we write into a file
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# use `argparse` for cli arguments
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# Read data
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lsystems = data_reader(argv[1])
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# Generate XML
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xml = lsystems_xml(lsystems)
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# Print XML
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dom = xml_parser(ElementTree.tostring(xml))
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print(dom.toprettyxml(encoding="UTF-8").decode())
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