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Annotation of 43BSD/ingres/source/monitor/clrline.c, revision 1.1.1.1

1.1       root        1: # include      "monitor.h"
                      2: # include      <ingres.h>
                      3: # include      <aux.h>
                      4: # include      <sccs.h>
                      5: 
                      6: SCCSID(@(#)clrline.c   8.1     12/31/84)
                      7: 
                      8: 
                      9: 
                     10: /*
                     11: **  Clear Input Line
                     12: **
                     13: **     This routine removes the newline following a monitor command
                     14: **     (such as \t, \g,  etc.)  Any other characters are processed.
                     15: **     Hence, \t\g\t will work.  It also maintains the
                     16: **     Newline flag on command lines.  It will make certain that
                     17: **     the current line in the query buffer ends with a newline.
                     18: **
                     19: **     The flag 'noprompt' if will disable the prompt character if set.
                     20: **     Otherwise, it is automatically printed out.
                     21: **
                     22: **     Uses trace flag 8
                     23: */
                     24: 
                     25: clrline(noprompt)
                     26: int    noprompt;
                     27: {
                     28:        register char   c;
                     29: 
                     30:        if (!Newline)
                     31:                putc('\n', Qryiop);
                     32:        Newline = TRUE;
                     33:        /* if char following is a newline, throw it away */
                     34:        c = getch();
                     35:        Prompt = c == '\n';
                     36:        if (!Prompt)
                     37:        {
                     38:                ungetc(c, Input);
                     39:        }
                     40:        else
                     41:        {
                     42:                if (!noprompt)
                     43:                        prompt(0);
                     44:        }
                     45:        return;
                     46: }

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