Move toml table decoder to separate mod
Tyler Goodlet
parent
d9344aa468
commit
8ee3fc4aa5
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@ -27,7 +27,6 @@ from contextlib import contextmanager as cm
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from decimal import Decimal
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from math import copysign
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from pprint import pformat
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import re
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from typing import (
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Any,
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Iterator,
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@ -38,8 +37,11 @@ from typing import (
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import pendulum
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from pendulum import datetime, now
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import toml
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from ._toml import (
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toml,
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PpsEncoder,
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)
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from ._ledger import (
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Transaction,
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iter_by_dt,
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@ -733,137 +735,6 @@ def load_pps_from_ledger(
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return records, updated
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# TODO: instead see if we can hack tomli and tomli-w to do the same:
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# - https://github.com/hukkin/tomli
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# - https://github.com/hukkin/tomli-w
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class PpsEncoder(toml.TomlEncoder):
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'''
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Special "styled" encoder that makes a ``pps.toml`` redable and
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compact by putting `.clears` tables inline and everything else
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flat-ish.
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'''
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separator = ','
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def dump_list(self, v):
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'''
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Dump an inline list with a newline after every element and
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with consideration for denoted inline table types.
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'''
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retval = "[\n"
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for u in v:
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if isinstance(u, toml.decoder.InlineTableDict):
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out = self.dump_inline_table(u)
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else:
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out = str(self.dump_value(u))
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retval += " " + out + "," + "\n"
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retval += "]"
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return retval
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def dump_inline_table(self, section):
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"""Preserve inline table in its compact syntax instead of expanding
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into subsection.
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https://github.com/toml-lang/toml#user-content-inline-table
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"""
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val_list = []
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for k, v in section.items():
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# if isinstance(v, toml.decoder.InlineTableDict):
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if isinstance(v, dict):
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val = self.dump_inline_table(v)
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else:
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val = str(self.dump_value(v))
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val_list.append(k + " = " + val)
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retval = "{ " + ", ".join(val_list) + " }"
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return retval
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def dump_sections(self, o, sup):
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retstr = ""
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if sup != "" and sup[-1] != ".":
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sup += '.'
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retdict = self._dict()
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arraystr = ""
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for section in o:
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qsection = str(section)
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value = o[section]
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if not re.match(r'^[A-Za-z0-9_-]+$', section):
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qsection = toml.encoder._dump_str(section)
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# arrayoftables = False
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if (
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self.preserve
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and isinstance(value, toml.decoder.InlineTableDict)
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):
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retstr += (
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qsection
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+
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" = "
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+
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self.dump_inline_table(o[section])
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+
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'\n' # only on the final terminating left brace
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)
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# XXX: this code i'm pretty sure is just blatantly bad
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# and/or wrong..
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# if isinstance(o[section], list):
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# for a in o[section]:
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# if isinstance(a, dict):
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# arrayoftables = True
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# if arrayoftables:
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# for a in o[section]:
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# arraytabstr = "\n"
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# arraystr += "[[" + sup + qsection + "]]\n"
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# s, d = self.dump_sections(a, sup + qsection)
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# if s:
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# if s[0] == "[":
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# arraytabstr += s
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# else:
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# arraystr += s
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# while d:
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# newd = self._dict()
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# for dsec in d:
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# s1, d1 = self.dump_sections(d[dsec], sup +
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# qsection + "." +
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# dsec)
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# if s1:
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# arraytabstr += ("[" + sup + qsection +
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# "." + dsec + "]\n")
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# arraytabstr += s1
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# for s1 in d1:
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# newd[dsec + "." + s1] = d1[s1]
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# d = newd
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# arraystr += arraytabstr
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elif isinstance(value, dict):
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retdict[qsection] = o[section]
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elif o[section] is not None:
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retstr += (
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qsection
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+
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" = "
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+
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str(self.dump_value(o[section]))
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)
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# if not isinstance(value, dict):
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if not isinstance(value, toml.decoder.InlineTableDict):
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# inline tables should not contain newlines:
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# https://toml.io/en/v1.0.0#inline-table
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retstr += '\n'
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else:
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raise ValueError(value)
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retstr += arraystr
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return (retstr, retdict)
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@cm
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def open_pps(
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brokername: str,
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@ -0,0 +1,157 @@
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# piker: trading gear for hackers
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# Copyright (C) Tyler Goodlet (in stewardship for pikers)
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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'''
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TOML codec hacks to make position tables look decent.
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(looking at you "`toml`-lib"..)
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'''
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import re
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import toml
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# TODO: instead see if we can hack tomli and tomli-w to do the same:
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# - https://github.com/hukkin/tomli
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# - https://github.com/hukkin/tomli-w
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class PpsEncoder(toml.TomlEncoder):
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'''
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Special "styled" encoder that makes a ``pps.toml`` redable and
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compact by putting `.clears` tables inline and everything else
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flat-ish.
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'''
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separator = ','
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def dump_list(self, v):
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'''
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Dump an inline list with a newline after every element and
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with consideration for denoted inline table types.
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'''
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retval = "[\n"
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for u in v:
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if isinstance(u, toml.decoder.InlineTableDict):
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out = self.dump_inline_table(u)
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else:
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out = str(self.dump_value(u))
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retval += " " + out + "," + "\n"
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retval += "]"
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return retval
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def dump_inline_table(self, section):
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"""Preserve inline table in its compact syntax instead of expanding
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into subsection.
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https://github.com/toml-lang/toml#user-content-inline-table
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"""
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val_list = []
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for k, v in section.items():
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# if isinstance(v, toml.decoder.InlineTableDict):
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if isinstance(v, dict):
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val = self.dump_inline_table(v)
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else:
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val = str(self.dump_value(v))
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val_list.append(k + " = " + val)
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retval = "{ " + ", ".join(val_list) + " }"
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return retval
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def dump_sections(self, o, sup):
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retstr = ""
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if sup != "" and sup[-1] != ".":
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sup += '.'
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retdict = self._dict()
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arraystr = ""
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for section in o:
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qsection = str(section)
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value = o[section]
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if not re.match(r'^[A-Za-z0-9_-]+$', section):
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qsection = toml.encoder._dump_str(section)
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# arrayoftables = False
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if (
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self.preserve
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and isinstance(value, toml.decoder.InlineTableDict)
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):
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retstr += (
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qsection
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+
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" = "
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+
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self.dump_inline_table(o[section])
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+
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'\n' # only on the final terminating left brace
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)
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# XXX: this code i'm pretty sure is just blatantly bad
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# and/or wrong..
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# if isinstance(o[section], list):
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# for a in o[section]:
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# if isinstance(a, dict):
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# arrayoftables = True
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# if arrayoftables:
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# for a in o[section]:
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# arraytabstr = "\n"
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# arraystr += "[[" + sup + qsection + "]]\n"
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# s, d = self.dump_sections(a, sup + qsection)
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# if s:
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# if s[0] == "[":
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# arraytabstr += s
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# else:
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# arraystr += s
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# while d:
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# newd = self._dict()
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# for dsec in d:
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# s1, d1 = self.dump_sections(d[dsec], sup +
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# qsection + "." +
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# dsec)
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# if s1:
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# arraytabstr += ("[" + sup + qsection +
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# "." + dsec + "]\n")
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# arraytabstr += s1
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# for s1 in d1:
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# newd[dsec + "." + s1] = d1[s1]
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# d = newd
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# arraystr += arraytabstr
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elif isinstance(value, dict):
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retdict[qsection] = o[section]
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elif o[section] is not None:
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retstr += (
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qsection
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+
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" = "
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+
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str(self.dump_value(o[section]))
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)
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# if not isinstance(value, dict):
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if not isinstance(value, toml.decoder.InlineTableDict):
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# inline tables should not contain newlines:
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# https://toml.io/en/v1.0.0#inline-table
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retstr += '\n'
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else:
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raise ValueError(value)
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retstr += arraystr
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return (retstr, retdict)
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