remove old unused parse module
Change-Id: Ie94217504a65c21a7a8aa7221f9028a689476ffd Reviewed-on: https://forge.frm2.tum.de/review/c/secop/frappy/+/34831 Tested-by: Jenkins Automated Tests <pedersen+jenkins@frm2.tum.de> Reviewed-by: Georg Brandl <g.brandl@fz-juelich.de> Reviewed-by: Markus Zolliker <markus.zolliker@psi.ch>
This commit is contained in:
parent
ec667c8151
commit
b93254b553
178
frappy/parse.py
178
frappy/parse.py
@ -1,178 +0,0 @@
|
||||
# *****************************************************************************
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify it under
|
||||
# the terms of the GNU General Public License as published by the Free Software
|
||||
# Foundation; either version 2 of the License, or (at your option) any later
|
||||
# version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful, but WITHOUT
|
||||
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
|
||||
# details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License along with
|
||||
# this program; if not, write to the Free Software Foundation, Inc.,
|
||||
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
#
|
||||
# Module authors:
|
||||
# Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
|
||||
#
|
||||
# *****************************************************************************
|
||||
"""parser. used for config files and the gui
|
||||
|
||||
can't use ast.literal_eval as we want less strict syntax (strings without quotes)
|
||||
|
||||
parsing rules:
|
||||
(...) -> tuple
|
||||
[...] -> tuple
|
||||
{text:...} -> dict
|
||||
{text=...} -> dict
|
||||
..., ... -> tuple
|
||||
digits -> float or int (try int, if it fails: take float)
|
||||
text -> string
|
||||
'text' -> string
|
||||
"text" -> string
|
||||
|
||||
further conversions are done by the validator of the datatype....
|
||||
"""
|
||||
|
||||
# TODO: should be refactored to use Exceptions instead of None in return tuple
|
||||
# also it would be better to use functions instead of a class
|
||||
|
||||
|
||||
from collections import OrderedDict
|
||||
|
||||
|
||||
class Parser:
|
||||
# all parsing methods return (parsed value, remaining string)
|
||||
# or (None, remaining_text) if parsing error
|
||||
|
||||
def parse_number(self, text):
|
||||
text = text.strip()
|
||||
l = 1
|
||||
number = None
|
||||
while l <= len(text):
|
||||
try:
|
||||
number = float(text[:l])
|
||||
length = l
|
||||
l += 1
|
||||
except ValueError:
|
||||
if text[l - 1] in 'eE+-':
|
||||
l += 1
|
||||
continue
|
||||
if number is None:
|
||||
return None, text
|
||||
try:
|
||||
# TODO: check allthough length is unset in it. 1, number is None, never reaching the try
|
||||
# pylint: disable=used-before-assignment
|
||||
return int(text[:length]), text[length:]
|
||||
except ValueError:
|
||||
return number, text[length:]
|
||||
return number, ''
|
||||
|
||||
def parse_string(self, orgtext):
|
||||
# handle quoted and unquoted strings correctly
|
||||
text = orgtext.strip()
|
||||
if text[0] in ('"', "'"):
|
||||
# quoted string
|
||||
quote = text[0]
|
||||
idx = 0
|
||||
|
||||
while True:
|
||||
idx = text.find(quote, idx + 1)
|
||||
if idx == -1:
|
||||
return None, orgtext
|
||||
# check escapes!
|
||||
if text[idx - 1] == '\\':
|
||||
continue
|
||||
return text[1:idx], text[idx + 1:].strip()
|
||||
|
||||
# unquoted strings are terminated by comma or whitespace
|
||||
idx = 0
|
||||
while idx < len(text):
|
||||
if text[idx] in '\x09 ,.;:()[]{}<>-+*/\\!"§$%&=?#~+*\'´`^°|-':
|
||||
break
|
||||
idx += 1
|
||||
return text[:idx] or None, text[idx:].strip()
|
||||
|
||||
def parse_tuple(self, orgtext):
|
||||
text = orgtext.strip()
|
||||
bra = text[0]
|
||||
if bra not in '([<':
|
||||
return None, orgtext
|
||||
# convert to closing bracket
|
||||
bra = ')]>'['([<'.index(bra)]
|
||||
reslist = []
|
||||
# search for closing bracket, collecting results
|
||||
text = text[1:]
|
||||
while text:
|
||||
if bra not in text:
|
||||
return None, text
|
||||
res, rem = self.parse_sub(text)
|
||||
if res is None:
|
||||
print(f'remtuple {rem!r} {text!r} {bra!r}')
|
||||
if rem[0] == bra:
|
||||
# allow trailing separator
|
||||
return tuple(reslist), rem[1:].strip()
|
||||
return None, text
|
||||
reslist.append(res)
|
||||
if rem[0] == bra:
|
||||
return tuple(reslist), rem[1:].strip()
|
||||
# eat separator
|
||||
if rem[0] in ',;':
|
||||
text = rem[1:]
|
||||
else:
|
||||
return None, rem
|
||||
return None, orgtext
|
||||
|
||||
def parse_dict(self, orgtext):
|
||||
text = orgtext.strip()
|
||||
if text[0] != '{':
|
||||
return None, orgtext
|
||||
# keep ordering
|
||||
result = OrderedDict()
|
||||
# search for closing bracket, collecting results
|
||||
# watch for key=value or key:value pairs, separated by ,
|
||||
text = text[1:]
|
||||
while '}' in text:
|
||||
# first part is always a string
|
||||
key, rem = self.parse_string(text)
|
||||
if key is None:
|
||||
if rem[0] == '}':
|
||||
# allow trailing separator
|
||||
return result, rem[1:].strip()
|
||||
return None, orgtext
|
||||
if rem[0] not in ':=':
|
||||
return None, rem
|
||||
# eat separator
|
||||
text = rem[1:]
|
||||
value, rem = self.parse_sub(text)
|
||||
if value is None:
|
||||
return None, orgtext
|
||||
result[key] = value
|
||||
if rem[0] == '}':
|
||||
return result, rem[1:].strip()
|
||||
|
||||
if rem[0] not in ',;':
|
||||
return None, rem
|
||||
# eat separator
|
||||
text = rem[1:]
|
||||
return None, text
|
||||
|
||||
def parse_sub(self, orgtext):
|
||||
text = orgtext.strip()
|
||||
if not text:
|
||||
return None, orgtext
|
||||
if text[0] in '+-.0123456789':
|
||||
return self.parse_number(orgtext)
|
||||
if text[0] == '{':
|
||||
return self.parse_dict(orgtext)
|
||||
if text[0] in '([<':
|
||||
return self.parse_tuple(orgtext)
|
||||
return self.parse_string(orgtext)
|
||||
|
||||
def parse(self, orgtext):
|
||||
res, rem = self.parse_sub(orgtext)
|
||||
if rem and rem[0] in ',;':
|
||||
return self.parse_sub(f'[{orgtext}]')
|
||||
return res, rem
|
@ -1,110 +0,0 @@
|
||||
# *****************************************************************************
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify it under
|
||||
# the terms of the GNU General Public License as published by the Free Software
|
||||
# Foundation; either version 2 of the License, or (at your option) any later
|
||||
# version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful, but WITHOUT
|
||||
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
|
||||
# details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License along with
|
||||
# this program; if not, write to the Free Software Foundation, Inc.,
|
||||
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
#
|
||||
# Module authors:
|
||||
# Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
|
||||
#
|
||||
# *****************************************************************************
|
||||
"""test data types."""
|
||||
|
||||
|
||||
from ast import literal_eval
|
||||
from collections import OrderedDict
|
||||
|
||||
import pytest
|
||||
|
||||
from frappy.parse import Parser
|
||||
|
||||
|
||||
# pylint: disable=redefined-outer-name
|
||||
@pytest.fixture(scope="module")
|
||||
def parser():
|
||||
return Parser()
|
||||
|
||||
|
||||
def test_Parser_parse_number(parser):
|
||||
assert parser.parse_number('1') == (1, '')
|
||||
assert parser.parse_number('') == (None, '')
|
||||
assert parser.parse_number('a') == (None, 'a')
|
||||
assert parser.parse_number('1,2,3') == (1, ',2,3')
|
||||
assert parser.parse_number('1.23e-04:9') == (1.23e-4, ':9')
|
||||
|
||||
|
||||
def test_Parser_parse_string(parser):
|
||||
assert parser.parse_string('%') == (None, '%')
|
||||
assert parser.parse_string('a') == ('a', '')
|
||||
assert parser.parse_string('Hello World!') == ('Hello', 'World!')
|
||||
assert parser.parse_string('Hello<World!') == ('Hello', '<World!')
|
||||
assert parser.parse_string('"Hello World!\'') == (None, '"Hello World!\'')
|
||||
assert parser.parse_string('"Hello World!\\"') == (
|
||||
None, '"Hello World!\\"')
|
||||
assert parser.parse_string('"Hello World!"X') == ("Hello World!", 'X')
|
||||
|
||||
|
||||
def test_Parser_parse_tuple(parser):
|
||||
assert parser.parse_tuple('(1,2.3)') == ((1, 2.3), '')
|
||||
assert parser.parse_tuple('[1,a]') == ((1, 'a'), '')
|
||||
assert parser.parse_tuple('[1,a>]') == (None, '>]')
|
||||
assert parser.parse_tuple('x') == (None, 'x')
|
||||
assert parser.parse_tuple('2') == (None, '2')
|
||||
|
||||
|
||||
def test_Parser_parse_dict(parser):
|
||||
assert (parser.parse_dict('{a:1,b=2,"X y":\'a:9=3\'}') ==
|
||||
(OrderedDict([('a', 1), ('b', 2), ('X y', 'a:9=3')]), ''))
|
||||
|
||||
|
||||
def test_Parser_parse(parser):
|
||||
assert parser.parse('1') == (1, '')
|
||||
assert parser.parse('') == (None, '')
|
||||
assert parser.parse('a') == ('a', '')
|
||||
assert parser.parse('1,2,3') == ((1, 2, 3), '')
|
||||
assert parser.parse('1.23e-04:9') == (1.23e-4, ':9')
|
||||
|
||||
assert parser.parse('%') == (None, '%')
|
||||
assert parser.parse('Hello World!') == ('Hello', 'World!')
|
||||
assert parser.parse('Hello<World!') == ('Hello', '<World!')
|
||||
assert parser.parse('"Hello World!\'') == (None, '"Hello World!\'')
|
||||
assert parser.parse('"Hello World!\\"') == (None, '"Hello World!\\"')
|
||||
assert parser.parse('"Hello World!"X') == ("Hello World!", 'X')
|
||||
|
||||
assert parser.parse('(1,2.3)') == ((1, 2.3), '')
|
||||
assert parser.parse('[1,a]') == ((1, 'a'), '')
|
||||
assert parser.parse('[1,a>]') == (None, '>]')
|
||||
assert parser.parse('x') == ('x', '')
|
||||
assert parser.parse('2') == (2, '')
|
||||
|
||||
assert (parser.parse('{a:1,b=2,"X y":\'a:9=3\'}') ==
|
||||
(OrderedDict([('a', 1), ('b', 2), ('X y', 'a:9=3')]), ''))
|
||||
|
||||
assert parser.parse('1, 2,a,c') == ((1, 2, 'a', 'c'), '')
|
||||
|
||||
assert parser.parse('"\x09 \r"') == ('\t \r', '')
|
||||
|
||||
|
||||
# valid python syntax must always be valid
|
||||
@pytest.mark.parametrize('string', [
|
||||
"{'a': 0, 'b': 1}",
|
||||
"(1,)",
|
||||
"{'a': 'x' , 'b': 1}",
|
||||
"{'a': 'x' , 'b': 1,}",
|
||||
"{'a':['b' ] ,}",
|
||||
"(1,[1] ,)",
|
||||
])
|
||||
def test_python_literal(parser, string):
|
||||
literal_eval(string) # prove str is valid
|
||||
_, remaining = parser.parse(string)
|
||||
assert remaining == ''
|
Loading…
x
Reference in New Issue
Block a user