teacl/src/execte.c

31 lines
1.3 KiB
C

/*****************************************************************************
ExeCtE()
This function executes a ^E (control-E or caret-E) command, which
returns the value of the form feed flag. The form feed flag is -1 if the
last read operation was terminated because a form feed was encountered. It
is 0 otherwise. If the ^E command is preceded by a numeric argument, then
the command sets the value of the form feed flag. The form feed flag is
used by the output code to indicate whether a form feed should be appended
when the edit buffer is written to the output file.
*****************************************************************************/
#include "zport.h" /* define portability identifiers */
#include "tecoc.h" /* define general identifiers */
#include "defext.h" /* define external global variables */
DEFAULT ExeCtE() /* execute a ^E (control-E) command */
{
DBGFEN(1,"ExeCtE",NULL);
if (EStTop > EStBot) { /* if numeric argument */
if (GetNmA() == FAILURE) { /* get numeric arg */
DBGFEX(1,DbgFNm,"FAILURE");
return FAILURE;
}
FFPage = (NArgmt == -1) ? -1 : 0;
CmdMod = '\0'; /* clear modifiers flags */
DBGFEX(1,DbgFNm,"SUCCESS");
return SUCCESS;
}
CmdMod = '\0'; /* clear modifiers flags */
DBGFEX(1,DbgFNm,"PushEx(FFPage)");
return PushEx(FFPage, OPERAND);
}