MATLAB读取txt文件中的很多段数据并且分别输出txt

txt文件格式是这样：

StartLoft StartCurve 48.080990338 -13.719269957 -27.057190581 48.092208870 -13.679892032 -27.092132636 48.104499723 -13.636609050 -27.120879916 48.117735369 -13.589832336 -27.142704970 48.134686891 -13.529668065 -27.158733442 EndCurve StartCurve 48.251861561 13.105642138 25.599082613 48.255634126 13.091744541 25.603722117 48.259503396 13.077474218 25.606634001 48.263434891 13.062957267 25.607440615 48.267413133 13.048250054 25.605574332 EndCurve EndLoft End 要求从StartLoft开始到End结束，把每段StartCurve和EndCurve中的数据输出为一个txt