<CsoundSynthesizer> <CsOptions> ; Select audio/midi flags here according to platform -n ;;;no sound output ;-iadc ;;;uncomment -iadc if realtime audio input is needed too </CsOptions> <CsInstruments> ;example of Joachim Heintz opcode FilSuf, S, So ;returns the suffix of a filename or path, optional in lower case Spath,ilow xin ipos strrindex Spath, "." ;look for the rightmost '.' Suf strsub Spath, ipos+1 ;extract the substring after "." if ilow != 0 then ;if ilow input is not 0 then Suf strlower Suf ;convert to lower case endif xout Suf endop instr suff ilow = p4 prints "Printing suffix:\n" Suf FilSuf "/my/dir/my/file.WAV", ilow puts Suf, 1 endin </CsInstruments> <CsScore> i "suff" 0 1 0 ;do not convert to lower case i "suff" 3 1 1 ;convert to lower case e </CsScore> </CsoundSynthesizer>