is for grammar, structure, and order of language elements. Emacs provides many facilities for correcting syntax errors, building complex syntactic structures from simpler ones, and applying rules of composition with syntactical correctness.
Emacs covers a wide range of topics related to syntax, which typically applies to programming (and data) languages, especially to Emacs Lisp. Some of these topics also have their own tags. For example:
- basic character syntax
- syntax tables for determining words, symbols, and other syntactic boundaries
- source file tag syntax
- init-file syntax is documented separately
- regexp syntax has its own rules and conventions
- debugging syntax errors
- finding syntax errors with flymake or flycheck
Use additional tags besides syntax as appropriate.