mirror of
https://github.com/iv-org/invidious.git
synced 2024-09-08 04:45:36 +05:30
Videos: fix description text offset when emojis are present
This commit is contained in:
parent
73d2ed6f77
commit
b3c0afef02
@ -46,37 +46,60 @@ def parse_command(command : JSON::Any?, string : String) : String?
|
||||
return "(unknown YouTube desc command)"
|
||||
end
|
||||
|
||||
def parse_description(desc : JSON::Any?) : String?
|
||||
if desc.nil?
|
||||
return ""
|
||||
private def copy_string(str : String::Builder, iter : Iterator, count : Int) : Int
|
||||
copied = 0
|
||||
while copied < count
|
||||
cp = iter.next
|
||||
break if cp.is_a?(Iterator::Stop)
|
||||
|
||||
str << cp.chr
|
||||
|
||||
# A codepoint from the SMP counts twice
|
||||
copied += 1 if cp > 0xFFFF
|
||||
copied += 1
|
||||
end
|
||||
|
||||
return copied
|
||||
end
|
||||
|
||||
def parse_description(desc : JSON::Any?) : String?
|
||||
return "" if desc.nil?
|
||||
|
||||
content = desc["content"].as_s
|
||||
if content.empty?
|
||||
return ""
|
||||
end
|
||||
return "" if content.empty?
|
||||
|
||||
if commands = desc["commandRuns"]?.try &.as_a
|
||||
description = String.build do |str|
|
||||
index = 0
|
||||
commands.each do |command|
|
||||
start_index = command["startIndex"].as_i
|
||||
length = command["length"].as_i
|
||||
commands = desc["commandRuns"]?.try &.as_a
|
||||
return content if commands.nil?
|
||||
|
||||
if start_index > 0 && start_index - index > 0
|
||||
str << content[index...start_index]
|
||||
index = start_index
|
||||
end
|
||||
# Not everything is stored in UTF-8 on youtube's side. The SMP codepoints
|
||||
# (0x10000 and above) are encoded as UTF-16 surrogate pairs, which are
|
||||
# automatically decoded by the JSON parser. It means that we need to count
|
||||
# copied byte in a special manner, preventing the use of regular string copy.
|
||||
iter = content.each_codepoint
|
||||
|
||||
str << parse_command(command, content[start_index, length])
|
||||
index += length
|
||||
end
|
||||
if index < content.size
|
||||
str << content[index..content.size]
|
||||
index = 0
|
||||
|
||||
return String.build do |str|
|
||||
commands.each do |command|
|
||||
cmd_start = command["startIndex"].as_i
|
||||
cmd_length = command["length"].as_i
|
||||
|
||||
# Copy the text chunk between this command and the previous if needed.
|
||||
length = cmd_start - index
|
||||
index += copy_string(str, iter, length)
|
||||
|
||||
# We need to copy the command's text using the iterator
|
||||
# and the special function defined above.
|
||||
cmd_content = String.build(cmd_length) do |str2|
|
||||
copy_string(str2, iter, cmd_length)
|
||||
end
|
||||
|
||||
str << parse_command(command, cmd_content)
|
||||
index += cmd_length
|
||||
end
|
||||
return description
|
||||
end
|
||||
|
||||
return content
|
||||
# Copy the end of the string (past the last command).
|
||||
remaining_length = content.size - index
|
||||
copy_string(str, iter, remaining_length) if remaining_length > 0
|
||||
end
|
||||
end
|
||||
|
Loading…
Reference in New Issue
Block a user