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Running
on
Zero
File size: 8,350 Bytes
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import re
class LuaConverter:
@staticmethod
def _close_find(content, key_char, start=0):
result = -1
offset = start
pair_map = {
'\'': '\'',
'"': '"',
'[': ']',
'{': '}',
}
pair_temp = []
char = ''
while offset < len(content):
char_prev = char
char = content[offset]
if not char.isspace():
if len(pair_temp) > 0:
last_pair_char = pair_temp[-1]
if char == last_pair_char:
pair_temp.pop()
elif char_prev != '\\' and char == '{' and last_pair_char == '}':
pair_temp.append(pair_map[char])
else:
if char_prev != '\\' and char in pair_map:
pair_temp.append(pair_map[char])
elif char == key_char:
result = offset
break
offset += 1
return result
@staticmethod
def from_lua(content: str, level=0):
content = content.strip()
if level == 0:
notes = re.findall(r'--\s*?\[\[[\s\S]*?\]\]', content)
for note in notes:
content = content.replace(note, '')
notes = re.findall(r'--.*', content)
for note in notes:
content = content.replace(note, '')
if len(content) == 0:
raise Exception('Couldn\' t analyze blank content.')
elif (content.count('-') == 0 or (content.count('-') == 1 and content[0] == '-')) \
and content.replace('-', '').isnumeric():
return int(content)
elif (content.count('-') == 0 or (content.count('-') == 1 and content[0] == '-')) \
and content.count('.') <= 1 and content.replace('-', '').replace('.', '').isnumeric():
return float(content)
elif content[:2] == '0x' and content.replace('0x', '').isalnum():
return int(content, 16)
elif content == 'false':
return False
elif content == 'true':
return True
elif content == 'nil':
return None
elif content[:2] == '[[' and content[-2:] == ']]':
return content[2:-2]
elif (content[0] == '"' and content[-1] == '"') or (content[0] == '\'' and content[-1] == '\''):
return content[1:-1]
elif content[0] == '{' and content[-1] == '}':
content = content[1:-1]
level += 1
table = []
count = 0
offset = 0
is_list = True
while offset != -1:
count += 1
offset_prev = offset
offset = LuaConverter._close_find(content, ',', offset + 1)
if offset_prev != 0:
offset_prev += 1
if offset == -1:
item = content[offset_prev:].strip()
else:
item = content[offset_prev:offset].strip()
if item != '':
divider_offset = LuaConverter._close_find(item, '=')
if divider_offset == -1:
key = count
else:
is_list = False
key = item[0:divider_offset].strip()
if key[0] == '[' and key[-1] == ']':
key = LuaConverter.from_lua(key[1:-1], level=level)
value = item[divider_offset + 1:].strip()
value = LuaConverter.from_lua(value, level=level)
table.append((key, value))
if is_list:
return [v for _, v in table]
else:
result = {}
for k, v in table:
if isinstance(k, list):
k = tuple(k)
result[k] = v
return result
else:
return None
@staticmethod
def _process_lightroom_json(obj):
"""Process JSON object for Lightroom-specific requirements"""
if not isinstance(obj, dict):
return obj
# Create a copy to avoid modifying the original
json_obj = obj.copy()
# Remove specific keys if they exist
keys_to_remove = ["CameraProfile", "CameraProfileDigest", "GrainSeed"]
for key in keys_to_remove:
if key in json_obj:
del json_obj[key]
# Handle tone curves
tones = ["ToneCurvePV2012", "ToneCurvePV2012Red", "ToneCurvePV2012Green", "ToneCurvePV2012Blue"]
for tone in tones:
if tone in json_obj:
# Convert string keys to numeric keys for the tone curve
if isinstance(json_obj[tone], dict):
try:
json_obj[tone] = {int(k): v for k, v in json_obj[tone].items()}
if len(json_obj[tone]) % 2 != 0:
del json_obj[tone]
except (ValueError, TypeError):
# If conversion fails, remove the tone curve
del json_obj[tone]
# Handle tone curves in Look.Parameters
if "Look" in json_obj and "Parameters" in json_obj["Look"]:
for tone in tones:
if tone in json_obj["Look"]["Parameters"]:
try:
json_obj["Look"]["Parameters"][tone] = {int(k): v for k, v in json_obj["Look"]["Parameters"][tone].items()}
if len(json_obj["Look"]["Parameters"][tone]) % 2 != 0:
del json_obj["Look"]["Parameters"][tone]
except (ValueError, TypeError):
# If conversion fails, remove the tone curve
del json_obj["Look"]["Parameters"][tone]
return json_obj
@staticmethod
def to_lua(obj, indent=' ', level=0):
# Apply Lightroom processing at the top level
if level == 0 and isinstance(obj, dict):
obj = LuaConverter._process_lightroom_json(obj)
result = ''
if isinstance(obj, bool):
result = str(obj).lower()
elif type(obj) in [int, float]:
result = str(obj)
elif isinstance(obj, str):
result = '"%s"' % obj
elif type(obj) in [list, tuple]:
is_simple_list = True
for i in obj:
if type(i) not in [bool, str, int, float]:
is_simple_list = False
break
if is_simple_list:
for i in obj:
if result != '':
result += ', '
result += LuaConverter.to_lua(i, level=level)
result = '{%s}' % result
else:
level += 1
for i in obj:
if result != '':
result += ',\n'
result += (indent * level) + LuaConverter.to_lua(i, level=level)
result = '{\n%s\n%s}' % (result, indent * (level - 1))
elif isinstance(obj, dict):
level += 1
for k, v in obj.items():
if result != '':
result += ',\n'
result += (indent * level)
if isinstance(k, str):
# Check if the key contains special characters or is not a valid identifier
if not k.isidentifier() or '-' in k or '.' in k:
result += '[%s] = ' % LuaConverter.to_lua(k, level=level)
else:
result += '%s = ' % k
else:
result += '[%s] = ' % LuaConverter.to_lua(k, level=level)
result += LuaConverter.to_lua(v, level=level)
result = '{\n%s\n%s}' % (result, indent * (level - 1))
else:
result = 'nil'
return result |