Support non-BMP characters by printing them in \u6789\uabcd
sequence.
#784
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feature: Support output non-BMP (Basic Multilingual Plane) characters.
Support them by printing them in
\u6789\uabcd
sequence.This feature helps to fit latest standard RFC 8259.
Fixed Issue #783
Related works:
doc: Add explaining sentences in README.md to highlight non-BMP support.
test: Add function
print_string_should_print_utf16_surrogate_pairs
to unit tests. (ALL 4/4 PASSED)Side effects:
The first lines of README.md's (ToC) were modified by by markdown editor 😿 .