geändert: README.md

geändert:       pyproject.toml
	geändert:       src/config_parser/__init__.py
	gelöscht:       src/config_parser/__main__.py
	geändert:       src/config_parser/ini.py
	neue Datei:     src/config_parser/parse/__init__.py
	geändert:       src/config_parser/parse/ini.py
	geändert:       src/config_parser/parse/json.py
	neue Datei:     src/config_parser/serialize/__init__.py
	neue Datei:     src/config_parser/serialize/ini.py
	neue Datei:     src/config_parser/serialize/json.py
	neue Datei:     tests/json/test_serializer.py

README.md

@@ -75,3 +75,15 @@ If the configuration file content is:
 ```
 
 the result will be `{'section1': {'key1': 'value1', 'key2': 'value2', 'number': 42, 'number2': 3.14, 'number3': -1, 'boolean': True, 'boolean2': False, 'null': None}, 'section2': {'hello': 'world'}, 'section3': {'key': 'value'}}`
+
+## Changelog
+### Version 1.1.0
+- JSON and INI serializer
+
+### Version 1.0.0
+- JSON parser
+- better API
+
+### Version 0.1.0
+- First release
+- INI parser

pyproject.toml

@@ -4,5 +4,5 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "config-parser"
-version = "1.0.0"
+version = "1.1.0"
 description = "A configuration file parser."

src/config_parser/__init__.py

@@ -2,13 +2,26 @@
 A library for parsing configuration files in various formats.
 
 Modules:
-- configuration: Base classes.
-- ini: INI file parser and serializer.
-- exceptions: Custom exceptions for configuration parsing.
+- _configuration: Base classes.
+- ini: INI configuration.
+- json: JSON configuration.
+- exceptions: Exceptions for configuration parsing.
+- parse: A package including the parsers.
+- serialize: A package including the serializers.
 '''
 
 from ._configuration import Configuration
+# from . import exceptions
+# from . import json
+# from . import ini
+# from . import parse
+# from . import serialize
 
 __all__ = [
-    'Configuration'
+    'Configuration',
+    'exceptions',
+    'json',
+    'ini',
+    'parse',
+    'serialize'
 ]

src/config_parser/ini.py

@@ -1,13 +1,14 @@
 import typing
 from ._configuration import Configuration
-from .parse.ini import COMMENT_PREFIXES, QUOTATION_MARKS, parse_ini
+from .parse.ini import _COMMENT_PREFIXES, _QUOTATION_MARKS, parse_ini
+from .serialize.ini import serialize as serialize_ini
 
 class INIConfiguration(Configuration):
     def __iter__(self):
         return iter({k: dict(v) if isinstance(v, INIConfigurationGroup) else v for k, v in self._config.items()}.items())
 
     @classmethod
-    def from_string(cls, data: str | bytes, comment_prefixes: typing.Collection[str] = COMMENT_PREFIXES, quotation_marks: typing.Collection[str] = QUOTATION_MARKS, ignore_errors: bool = False):
+    def from_string(cls, data: str | bytes, comment_prefixes: typing.Collection[str] = _COMMENT_PREFIXES, quotation_marks: typing.Collection[str] = _QUOTATION_MARKS, ignore_errors: bool = False):
         '''
         Parses INI configuration from a string and returns an instance of INIConfiguration.
 
@@ -49,13 +50,8 @@ class INIConfiguration(Configuration):
         :return: An INI formatted string representing the INIConfiguration instance.
         :rtype: str
         '''
-        result = ''
-        for key, value in self._config.items():
-            if isinstance(value, INIConfigurationGroup):
-                result += value.to_string(separator=separator)
-            else:
-                result += f'{key}{separator}{value}\n'
-        return result.strip()
+
+        return serialize_ini(self._config, separator)
 
 class INIConfigurationGroup(INIConfiguration):
     def __init__(self, name: str):

src/config_parser/parse/__init__.py

@@ -0,0 +1,15 @@
+'''
+The parsers
+
+Modules:
+- ini: INI parser.
+- json: JSON parser.
+'''
+
+# from . import json
+# from . import ini
+
+__all__ = [
+    'json',
+    'ini'
+]

src/config_parser/parse/ini.py

@@ -1,11 +1,11 @@
 import typing
 from ..exceptions import INIInvalidGroupHeader, INIInvalidKeyValueLine, INISyntaxError
 
-QUOTATION_MARKS = ['"', "'"]
-COMMENT_PREFIXES = ['#', ';']
-KEY_VALUE_LINE = 0
-GROUP_HEADER_LINE = 1
-COMMENT_LINE = 2
+_QUOTATION_MARKS = ['"', "'"]
+_COMMENT_PREFIXES = ['#', ';']
+_KEY_VALUE_LINE = 0
+_GROUP_HEADER_LINE = 1
+_COMMENT_LINE = 2
 
 def reverse_dict(d: typing.Dict) -> typing.Dict:
     '''
@@ -19,7 +19,7 @@ def reverse_dict(d: typing.Dict) -> typing.Dict:
     '''
     return {k: v for k, v in list(reversed(d.items()))}
 
-def parse_key_value_line(line: str, comment_prefixes: typing.Collection[str] = COMMENT_PREFIXES, quotation_marks: typing.Collection[str] = QUOTATION_MARKS, ignore_errors: bool = False) -> typing.Dict[str, str]:
+def parse_key_value_line(line: str, comment_prefixes: typing.Collection[str] = _COMMENT_PREFIXES, quotation_marks: typing.Collection[str] = _QUOTATION_MARKS, ignore_errors: bool = False) -> typing.Dict[str, str]:
     '''
     Parses a key-value line.
 
@@ -93,7 +93,7 @@ def parse_group_header(line: str, ignore_errors: bool = False) -> str:
         raise INIInvalidGroupHeader('the header is invalid')
 
 
-def parse_line_type(line: str, comment_prefixes: typing.Collection[str] = COMMENT_PREFIXES, ignore_errors: bool = False) -> int:
+def parse_line_type(line: str, comment_prefixes: typing.Collection[str] = _COMMENT_PREFIXES, ignore_errors: bool = False) -> int:
     '''
     Returns the type of a line.
 
@@ -111,14 +111,14 @@ def parse_line_type(line: str, comment_prefixes: typing.Collection[str] = COMMEN
     '''
     line = line.strip()
     if any(line.startswith(prefix) for prefix in comment_prefixes) or not line.strip():
-        return COMMENT_LINE
+        return _COMMENT_LINE
     elif line.startswith('[') and line.endswith(']') and len(line) > 2:
-        return GROUP_HEADER_LINE
+        return _GROUP_HEADER_LINE
     elif '=' in line or ':' in line:
-        return KEY_VALUE_LINE
+        return _KEY_VALUE_LINE
     else:
         if ignore_errors:
-            return COMMENT_LINE
+            return _COMMENT_LINE
         raise INISyntaxError('the line is invalid')
 
 def compress_conf(conf):
@@ -126,7 +126,7 @@ def compress_conf(conf):
         conf = conf.replace('\n\n', '\n')
     return conf.strip()
 
-def parse_ini(conf, comment_prefixes=COMMENT_PREFIXES, quotation_marks=QUOTATION_MARKS, ignore_errors: bool = False, global_group: bool = True) -> typing.Dict[str, typing.Dict[str, str]]:
+def parse_ini(conf, comment_prefixes=_COMMENT_PREFIXES, quotation_marks=_QUOTATION_MARKS, ignore_errors: bool = False, global_group: bool = True) -> typing.Dict[str, typing.Dict[str, str]]:
     '''Parses INI configuration from a string and returns a nested dictionary.
 
 :param conf: The INI configuration string to parse.
@@ -147,11 +147,11 @@ def parse_ini(conf, comment_prefixes=COMMENT_PREFIXES, quotation_marks=QUOTATION
     current_group = {}
     for line in list(reversed(conf.split('\n'))):
         line = line.strip()
-        if parse_line_type(line, comment_prefixes=comment_prefixes, ignore_errors=ignore_errors) == COMMENT_LINE:
+        if parse_line_type(line, comment_prefixes=comment_prefixes, ignore_errors=ignore_errors) == _COMMENT_LINE:
             continue
-        if parse_line_type(line, comment_prefixes=comment_prefixes, ignore_errors=ignore_errors) == GROUP_HEADER_LINE:
+        if parse_line_type(line, comment_prefixes=comment_prefixes, ignore_errors=ignore_errors) == _GROUP_HEADER_LINE:
             result[parse_group_header(line, ignore_errors=ignore_errors)] = reverse_dict(current_group)
             current_group = {}
-        if parse_line_type(line, comment_prefixes=comment_prefixes, ignore_errors=ignore_errors) == KEY_VALUE_LINE:
+        if parse_line_type(line, comment_prefixes=comment_prefixes, ignore_errors=ignore_errors) == _KEY_VALUE_LINE:
             current_group = current_group | parse_key_value_line(line, comment_prefixes=comment_prefixes, quotation_marks=quotation_marks, ignore_errors=ignore_errors)
     return reverse_dict(result)

src/config_parser/parse/json.py

@@ -2,7 +2,7 @@ from ..exceptions import EscapeSequenceSyntaxError, JSONValueSyntaxError, JSONNu
 import typing
 import re
 
-JSON_ESCAPE_SEQUENCES = {
+_JSON_ESCAPE_SEQUENCES = {
     '"': '"',
     '\\': '\\',
     '/': '/',
@@ -62,7 +62,7 @@ def parse_escape_sequences(string: str) -> bool:
             if c == 'u':
                 unicode_escape_sequence = ''
             else:
-                result += JSON_ESCAPE_SEQUENCES[c]
+                result += _JSON_ESCAPE_SEQUENCES[c]
 
     if unicode_escape_sequence:
         raise EscapeSequenceSyntaxError(f'Invalid unicode escape sequence in JSON string: \\u{unicode_escape_sequence}')

src/config_parser/serialize/__init__.py

@@ -0,0 +1,15 @@
+'''
+The serializers
+
+Modules:
+- ini: INI serializer.
+- json: JSON serializer.
+'''
+
+# from . import json
+# from . import ini
+
+__all__ = [
+    'json',
+    'ini'
+]

src/config_parser/serialize/ini.py

@@ -0,0 +1,23 @@
+from ..exceptions import INISyntaxError
+
+def serialize(data: dict, separator: str) -> str:
+    '''
+    Serializes the data to an INI formatted string.
+
+    :param data: The INI configuration.
+    :type data: dict
+
+    :param separator: The separator.
+    :type separator: str
+
+    :return: The INI formatted string.
+    :rtype: str
+    '''
+
+    result = ''
+    for key, value in data.items():
+        if hasattr(value, '_name'):
+            result += value.to_string(separator=separator)
+        else:
+            result += f'{key}{separator}{value}\n'
+    return result.strip()

src/config_parser/serialize/json.py

@@ -0,0 +1,135 @@
+import copy
+from typing import *
+import collections.abc
+
+_ESCAPE_SEQUENCES = {
+    '\"': r'\"',
+    '\\': r'\\',
+    '\b': r'\b',
+    '\f': r'\f',
+    '\n': r'\n',
+    '\r': r'\r',
+    '\t': r'\t',
+}
+
+class _Mapper:
+    def __init__(self, mapping = {}):
+        self._mapping = copy.deepcopy(mapping)
+
+    def _set(self, key, value):
+        self._mapping[key] = value
+
+    def set(self, key, value):
+        self._set(key, value)
+        return self
+
+    def map(self, value):
+        return self._mapping[value]
+
+_MAPPER = _Mapper().set(True, 'true').set(False, 'false').set(None, 'null')
+
+def _serialize_object(data: dict, level: int, indent: int, indent_char: str, separators: Tuple[str, str]) -> str:
+    result = '{'
+    _count = 0
+    for _key, value in data.items():
+        _count += 1
+        key = _serialize(_key, 0, 0, '', separators)
+        value = _serialize(value, level + 1, indent, indent_char, separators)
+        if not isinstance(_key, str):
+            key = '"' + key + '"'
+        if indent:
+            result += '\n'
+        result += (level + 1) * indent * indent_char
+        result += key
+        result += separators[1]
+        result += value
+        if _count != len(data.keys()):
+            if indent:
+                result += separators[0].strip()
+            else:
+                result += separators[0]
+    if indent:
+        result += '\n'
+    result += level * indent * indent_char + '}'
+    return result
+
+def _serialize_array(data: Sequence, level: int, indent: int, indent_char: str, separators: Tuple[str, str]) -> str:
+    result = '['
+    _count = 0
+    for value in data:
+        _count += 1
+        value = _serialize(value, level + 1, indent, indent_char, separators)
+        if indent:
+            result += '\n'
+        result += (level + 1) * indent * indent_char
+        result += value
+        if _count != len(data):
+            if indent:
+                result += separators[0].strip()
+            else:
+                result += separators[0]
+    if indent:
+        result += '\n'
+    result += level * indent * indent_char + ']'
+    return result
+
+def _serialize_string(data: str) -> str:
+    _data = data
+    data = ''
+    for c in _data:
+        data += _ESCAPE_SEQUENCES.get(c, c)
+    return '"' + data + '"'
+
+
+def _serialize_number(data: int | float) -> str:
+    return str(data)
+
+def _serialize(data: dict | list | str | int | float | bool | None, level: int, indent: int, indent_char: str, separators: Tuple[str, str]) -> str:
+    if isinstance(data, (bool, type(None))):
+        return _MAPPER.map(data)
+    elif isinstance(data, dict):
+        return _serialize_object(data, level, indent, indent_char, separators)
+    elif isinstance(data, str):
+        return _serialize_string(data)
+    elif isinstance(data, (int, float)):
+        return _serialize_number(data)
+    elif isinstance(data, collections.abc.Sequence):
+        return _serialize_array(data, level, indent, indent_char, separators)
+    else:
+        raise TypeError(f'Object of type {type(data).__name__} is not JSON serializable')
+
+def _char_whitespaces(whitespaces: Tuple[int | str, int | str] | int | str) -> Tuple[str, str]:
+    if isinstance(whitespaces, collections.abc.Sequence) and not isinstance(whitespaces, str):
+        if len(whitespaces) != 2:
+            raise ValueError(f'expected exactly two elements in whitespaces, got {len(whitespaces)}')
+    if isinstance(whitespaces, (str, int)):
+        whitespaces = whitespaces, whitespaces
+    if isinstance(whitespaces[0], int):
+        whitespaces = whitespaces[0] * ' ', whitespaces[1]
+    if isinstance(whitespaces[1], int):
+        whitespaces = whitespaces[0], whitespaces[1] * ' '
+    return whitespaces
+
+def serialize(data: dict | list | str | int | float | bool | None, indent: int = 0, indent_char: str = ' ', separators: Tuple[str, str] = (', ', ': ')) -> str:
+    '''
+    Serializes the data to a JSON formatted string.
+
+    :param data: The data.
+    :type data: dict | list | str | int | float | bool | None
+    :param indent: The indentation
+    :type indent: int
+    :param indent_char: The character the indentation will be filled with
+    :type indent_char: str
+    :param separators: A tuple with the separators. The first string is the element separator and the second string is the key value separator.
+    :type separators: tuple
+
+    :raises TypeError: If the type is not JSON serializable.
+
+    :return: The JSON formatted string.
+    :rtype: str
+    '''
+
+    if len(separators) != 2:
+        raise ValueError(f'expected exactly two elements in separators, got {len(separators)}.')
+
+    return _serialize(data, 0, indent, indent_char, separators)

tests/json/test_serializer.py

@@ -0,0 +1,51 @@
+from src.config_parser.serialize.json import serialize as serialize_json
+
+def test_serialize_json():
+    assert serialize_json(True) == 'true'
+    assert serialize_json(False) == 'false'
+    assert serialize_json(True, indent = 4) == 'true'
+
+    assert serialize_json(None) == 'null'
+
+    assert serialize_json({1: {None: True}}, indent = 4) == '''{
+    "1": {
+        "null": true
+    }
+}'''
+    assert serialize_json({1: {None: True}}) == '{"1": {"null": true}}'
+    assert serialize_json({1: {None: True}, 2: 'Hello, World!'}, separators = (',', ':')) == '{"1":{"null":true},"2":"Hello, World!"}'
+
+    array = [True, False, 1, None, 'Hello, World!']
+    assert serialize_json(array) == '[true, false, 1, null, "Hello, World!"]'
+    assert serialize_json(array, 4, 'X', (';', ':')) == '''[
+XXXXtrue;
+XXXXfalse;
+XXXX1;
+XXXXnull;
+XXXX"Hello, World!"
+]'''
+    assert serialize_json((1, 2, 3)) == '[1, 2, 3]'
+    assert serialize_json(range(3)) == '[0, 1, 2]'
+    assert serialize_json(b'\x0142') == '[1, 52, 50]'
+
+    assert serialize_json('Hello, World!') == '"Hello, World!"'
+    assert serialize_json('Hello,\nWorld!') == '"Hello,\\nWorld!"'
+    assert serialize_json('Hello,"World!') == '"Hello,\\"World!"'
+    assert serialize_json('Hello,\\World!') == '"Hello,\\\\World!"'
+    assert serialize_json('Hello,\bWorld!') == '"Hello,\\bWorld!"'
+    assert serialize_json('Hello,\tWorld!') == '"Hello,\\tWorld!"'
+    assert serialize_json('Hello,\rWorld!') == '"Hello,\\rWorld!"'
+    assert serialize_json('Hello,\fWorld!') == '"Hello,\\fWorld!"'
+
+    assert serialize_json(0) == '0'
+    assert serialize_json(1) == '1'
+    assert serialize_json(-1) == '-1'
+    assert serialize_json(0.0) == '0.0'
+    assert serialize_json(-0.0) == '-0.0'
+    assert serialize_json(-42.0) == '-42.0'
+
+    try:
+        serialize_json({1, 2, 3})
+        assert False, 'Expected TypeError'
+    except TypeError:
+        pass