1: # include   <stdio.h>
   2: 
   3: # include   "../ingres.h"
   4: # include   "../aux.h"
   5: # include   "monitor.h"
   6: 
   7: /*
   8: **  DO MACRO EVALUATION OF QUERY BUFFER
   9: **
  10: **	The logical query buffer is read and passed through the macro
  11: **	processor.  The main purpose of this is to evaluate {define}'s.
  12: **	If the 'pr' flag is set, the result is printed on the terminal,
  13: **	and so becomes a post-evaluation version of print.
  14: **
  15: **	Uses trace flag 12
  16: */
  17: 
  18: eval(pr)
  19: int pr;
  20: {
  21:     register FILE   *tfile;
  22:     register char   c;
  23:     extern int  fgetc();
  24:     char        tfilename[40];
  25: 
  26:     Autoclear = 0;
  27:     clrline(1);
  28: 
  29:     /* open temp file and reopen query buffer for reading */
  30:     if (!pr)
  31:     {
  32:         concat("/tmp/INGTQ", Fileset, tfilename);
  33:         if ((tfile = fopen(tfilename, "w")) == NULL)
  34:             syserr("eval: open(%s)", tfilename);
  35:     }
  36:     if (freopen(Qbname, "r", Qryiop) == NULL)
  37:         syserr("eval: freopen 1");
  38: 
  39:     /* COPY FILE */
  40:     macinit(&fgetc, Qryiop, 1);
  41:     while ((c = macgetch()) > 0)
  42:     {
  43:         if (pr)
  44:             putchar(c);
  45:         else
  46:             if (putc(c, tfile) == EOF)
  47:                 syserr("eval: putc");
  48:     }
  49: 
  50:     if (!pr)
  51:     {
  52:         /* link temp file back to query buffer */
  53:         fclose(tfile);
  54:         unlink(Qbname);
  55:         if (link(tfilename, Qbname))
  56:             syserr("eval: link");
  57:         unlink(tfilename);
  58:     }
  59: 
  60:     /* reopen query buffer (now evaluated) */
  61:     if (freopen(Qbname, "a", Qryiop) == NULL)
  62:         syserr("eval: freopen 2");
  63: 
  64:     cgprompt();
  65: }

Defined functions

eval defined in line 18; used 2 times
Last modified: 1995-02-04
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