writeUtf8Surrogate() — netty Function Reference

Architecture documentation for the writeUtf8Surrogate() function in QueryStringEncoder.java from the netty codebase.

Function java ProtocolCodecs HTTP calls 1 called by 1

Entity Profile

ProtocolCodecs→ HTTP→ writeUtf8Surrogate() — netty Function Reference

Dependency Diagram

graph TD
  292af774_f477_a78b_4c13_7c754780ae80["writeUtf8Surrogate()"]
  88739b5e_ab87_c690_d57f_c07e4748985e["QueryStringEncoder"]
  292af774_f477_a78b_4c13_7c754780ae80 -->|defined in| 88739b5e_ab87_c690_d57f_c07e4748985e
  6e537793_b2eb_9896_6f4e_18ef6539826b["encodeUtf8ComponentSlow()"]
  6e537793_b2eb_9896_6f4e_18ef6539826b -->|calls| 292af774_f477_a78b_4c13_7c754780ae80
  1e251d8b_1f4e_c93f_e50b_1d388bdd79dd["appendEncoded()"]
  292af774_f477_a78b_4c13_7c754780ae80 -->|calls| 1e251d8b_1f4e_c93f_e50b_1d388bdd79dd
  style 292af774_f477_a78b_4c13_7c754780ae80 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-http/src/main/java/io/netty/handler/codec/http/QueryStringEncoder.java lines 206–218

    private void writeUtf8Surrogate(char c, char c2) {
        if (!Character.isLowSurrogate(c2)) {
            appendEncoded(WRITE_UTF_UNKNOWN);
            appendEncoded(Character.isHighSurrogate(c2) ? WRITE_UTF_UNKNOWN : c2);
            return;
        }
        int codePoint = Character.toCodePoint(c, c2);
        // See https://www.unicode.org/versions/Unicode7.0.0/ch03.pdf#G2630.
        appendEncoded(0xf0 | (codePoint >> 18));
        appendEncoded(0x80 | ((codePoint >> 12) & 0x3f));
        appendEncoded(0x80 | ((codePoint >> 6) & 0x3f));
        appendEncoded(0x80 | (codePoint & 0x3f));
    }