mikf/gallery-dl
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

cache parsed Formatter functions

Browse Source
This commit is contained in:
Mike Fährmann 2021-06-22 19:39:38 +02:00
parent a416e54765
commit befe635022
No known key found for this signature in database
GPG Key ID: 5680CA389D365A88
1 changed files with 20 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
gallery_dl/util.py
View File

@ -559,6 +559,7 @@ class Formatter():
Replaces all occurrences of <old> with <new>
Example: {f:R /_/} -> "f_o_o_b_a_r" (if "f" is "f o o b a r")
"""
CACHE = {}
CONVERSIONS = {
"l": str.lower,
"u": str.upper,
@ -575,19 +576,26 @@ class Formatter():
def __init__(self, format_string, default=None):
self.default = default
self.result = []
self.fields = []
key = (format_string, default)
for literal_text, field_name, format_spec, conversion in \
_string.formatter_parser(format_string):
if literal_text:
self.result.append(literal_text)
if field_name:
self.fields.append((
len(self.result),
self._field_access(field_name, format_spec, conversion),
))
self.result.append("")
try:
self.result, self.fields = self.CACHE[key]
except KeyError:
self.result = []
self.fields = []
for literal_text, field_name, format_spec, conv in \
_string.formatter_parser(format_string):
if literal_text:
self.result.append(literal_text)
if field_name:
self.fields.append((
len(self.result),
self._field_access(field_name, format_spec, conv),
))
self.result.append("")
self.CACHE[key] = (self.result, self.fields)
if len(self.result) == 1:
if self.fields: