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Annotation of 42BSD/ingres/source/monitor/include.c, revision 1.1

1.1     ! root        1: # include      "monitor.h"
        !             2: # include      <ingres.h>
        !             3: # include      <aux.h>
        !             4: # include      <sccs.h>
        !             5: 
        !             6: SCCSID(@(#)include.c   7.1     2/5/81)
        !             7: 
        !             8: 
        !             9: 
        !            10: /*
        !            11: **  INCLUDE FILE
        !            12: **
        !            13: **     A file name, which must follow the \i, is read and inserted
        !            14: **     into the text stream at this location.  It may include all of
        !            15: **     the standard control functions.  Includes may be nested.
        !            16: **
        !            17: **     If the parameter is 0, the file name is taken from the input;
        !            18: **     otherwise it is taken directly from the parameter.  In this
        !            19: **     mode, errors are not printed.
        !            20: **
        !            21: **     Prompts are turned off during the include.
        !            22: */
        !            23: 
        !            24: include(filename)
        !            25: char   *filename;
        !            26: {
        !            27:        int                     savendf;
        !            28:        FILE                    *saveinp;
        !            29:        register char           *f;
        !            30:        register FILE           *b;
        !            31:        extern char             *getfilenm();
        !            32: 
        !            33:        f = filename;
        !            34:        if (f == 0)
        !            35:                f = getfilenm();
        !            36:        if (sequal(f, "-"))
        !            37:        {
        !            38:                /* read keyboard */
        !            39:                b = stdin;
        !            40:        }
        !            41:        else if (*f == 0)
        !            42:        {
        !            43:                /* back up one level (EOF on next read) */
        !            44:                GiveEof = TRUE;
        !            45:                return;
        !            46:        }
        !            47:        else
        !            48:        {
        !            49:                /* read file */
        !            50:                if ((b = fopen(f, "r")) == NULL)
        !            51:                {
        !            52:                        if (filename == 0)
        !            53:                                printf("Cannot open \"%s\"\n", f);
        !            54:                        return;
        !            55:                }
        !            56:        }
        !            57: 
        !            58:        /* check for too deep */
        !            59:        if (Idepth >= 5)
        !            60:        {
        !            61:                printf("Include nested too deep\n");
        !            62:                if (b)
        !            63:                        fclose(b);
        !            64:                return;
        !            65:        }
        !            66:        Idepth++;
        !            67: 
        !            68:        /* get input from alternate file */
        !            69:        savendf = Nodayfile;
        !            70:        if (b == stdin)
        !            71:        {
        !            72:                Nodayfile = Userdflag;
        !            73:                prompt("<<input>>");
        !            74:        }
        !            75:        else
        !            76:                Nodayfile = -1;
        !            77:        saveinp = Input;
        !            78:        Input = b;
        !            79:        monitor();
        !            80: 
        !            81:        /* done -- restore old file */
        !            82:        Input = saveinp;
        !            83:        Nodayfile = savendf;
        !            84:        Idepth--;
        !            85: }

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