Fix #3928: support digit separators (') in C++ integer literals in #define #4322
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…erals in #define
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This PR fixes issue #3928 by adding support for single-quote (') digit separators in C++ integer literals inside #define macros and normal code. Previously, such literals were not highlighted correctly in highlight.js.
Changes made:
Existing preprocessor tests may highlight numbers differently due to the fix; this is expected.Also the behavior for digit separators in integer literals is changed; all other syntax highlighting remains unchanged.
Closes#3928