# writer=default
N	name	yes	NONE	s--	yes	rw	tag name
F	input	yes	NONE	s--	yes	r-	input file
P	pattern	yes	NONE	s-b	yes	--	pattern
# writer=u-ctags 
N	name	yes	NONE	s--	yes	rw	tag name
F	input	yes	NONE	s--	yes	r-	input file
P	pattern	yes	NONE	s-b	yes	--	pattern
# writer=e-ctags 
N	name	yes	NONE	s--	yes	rw	tag name
F	input	yes	NONE	s--	yes	r-	input file
P	pattern	yes	NONE	s-b	yes	--	pattern
# writer=etags 
F	input	yes	NONE	s--	no	r-	input file
N	name	yes	NONE	s--	no	rw	tag name
P	pattern	yes	NONE	s-b	no	--	pattern
# writer=xref 
F	input	yes	NONE	s--	no	r-	input file
N	name	yes	NONE	s--	no	rw	tag name
P	pattern	yes	NONE	s-b	no	--	pattern
# writer=json 
F	input	yes	NONE	s--	no	r-	input file
N	name	yes	NONE	s--	no	rw	tag name
P	pattern	yes	NONE	s-b	no	--	pattern
# writer=xref N
F	input	yes	NONE	s--	no	r-	input file
N	name	no	NONE	s--	no	rw	tag name
P	pattern	yes	NONE	s-b	no	--	pattern
# writer=xref F
F	input	no	NONE	s--	no	r-	input file
N	name	yes	NONE	s--	no	rw	tag name
P	pattern	yes	NONE	s-b	no	--	pattern
# writer=xref P
F	input	yes	NONE	s--	no	r-	input file
N	name	yes	NONE	s--	no	rw	tag name
P	pattern	no	NONE	s-b	no	--	pattern
# writer=json N
F	input	yes	NONE	s--	no	r-	input file
N	name	no	NONE	s--	no	rw	tag name
P	pattern	yes	NONE	s-b	no	--	pattern
# writer=json F
F	input	no	NONE	s--	no	r-	input file
N	name	yes	NONE	s--	no	rw	tag name
P	pattern	yes	NONE	s-b	no	--	pattern
# writer=json P
F	input	yes	NONE	s--	no	r-	input file
N	name	yes	NONE	s--	no	rw	tag name
P	pattern	no	NONE	s-b	no	--	pattern
# writer=json --fields=-N
{"_type": "tag", "path": "input.c", "pattern": "/^void main(void) {}$/", "typeref": "typename:void", "kind": "function"}
# writer=json --fields=N
{"_type": "tag", "name": "main"}
# writer=json --fields=-F
{"_type": "tag", "name": "main", "pattern": "/^void main(void) {}$/", "typeref": "typename:void", "kind": "function"}
# writer=json --fields=F
{"_type": "tag", "path": "input.c"}
# writer=json --fields=-P
{"_type": "tag", "name": "main", "path": "input.c", "typeref": "typename:void", "kind": "function"}
# writer=json --fields=P
{"_type": "tag", "pattern": "/^void main(void) {}$/"}
# writer=json --fields=