In an OSC8 sequence, the Character ; (semicolum) is used to break up the URI (Uniform Resource Identifier). This is because the URI often contains multiple pieces of information that need to be separated and processed individually. For example, in a URI representing a web page, there may be a section for the protocol (e.g. http), a section for the domain name (e.g. google.com), and a section for the specific web page (e.g. search?q=osc8). By using the semicolon to break up the URI, the receiving software can more easily identify and process each section of the URI separately.
解释 Character ; inside the URI in OSC 8 sequence breaking the URI
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