teacl/src/exer.c

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/*****************************************************************************
ExeR()
This function executes a R command.
nR Back up n characters
*****************************************************************************/
#include "zport.h" /* define portability identifiers */
#include "tecoc.h" /* define general identifiers */
#include "defext.h" /* define external global variables */
DEFAULT ExeR() /* execute a R command */
{
DBGFEN(1,"ExeR",NULL);
if (EStTop == EStBot) { /* if no numeric argument */
NArgmt = 1; /* default is 1R */
} else {
UMinus(); /* if it's -R, make it -1R */
if (GetNmA() == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE");
return FAILURE;
}
}
DBGFEX(1,DbgFNm,"DoCJR()");
return DoCJR(-NArgmt);
}