texmath-0.13.2: test/writer/starmath/028_nested_function_with_left_delimiter_spacing.test
<<< tex
P_{\text{ch}, k}=\max\!\left(0,\min\!\left(P'_{\text{pv}, k},\,P^{\text{cap}}_{\text{ch}},\,P_{\text{ch,head}, k}\right)\right).
>>> starmath
P_{{"ch", k}} = func max left ( 0, func min left ( P_{{"pv", k}}', P_"ch"^"cap", P_{{"ch,head", k}} right ) right ).