1\\bar input.tex /^\\providecommand{\\bar}{\\section{#1}}$/;" C 2\\baz input.tex /^\\def\\baz{\\section{#1}}$/;" C 3\\foo input.tex /^\\renewcommand{\\foo}{\\section{#1}}$/;" C 4\\mysection0 input.tex /^\\newcommand{\\mysection0}{\\section{#1}}$/;" C 5\\mysection1 input.tex /^\\newcommand{\\mysection1}[1]{\\section{#1}}$/;" C 6\\mysection2 input.tex /^\\newcommand{\\mysection2}[1][1]{\\section{#1}}$/;" C 7\\mysection3 input.tex /^\\newcommand\\mysection3[1][1]{\\section{#1}}$/;" C 8\\op input.tex /^\\DeclareMathOperator{\\op}{foo}$/;" o 9