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Annotation of researchv10dc/cmd/pret/pret7.c, revision 1.1

1.1     ! root        1: #include <stdio.h>
        !             2: #include "pret.h"
        !             3: #include "pret.d"
        !             4: 
        !             5: extern FILE *tb;
        !             6: extern int anyerror, linenumber;
        !             7: extern int nrrows, nrcols, curstate, curdepth;
        !             8: extern int nrvars, realnrvars;
        !             9: extern struct ENTRY *base;
        !            10: extern char filename[256];
        !            11: 
        !            12: char *
        !            13: Emalloc(N)
        !            14:        unsigned N;
        !            15: { char *try, *malloc();
        !            16:        if ((try = malloc(N)) == NULL)
        !            17:                whoops("out of memory");
        !            18:        return try;
        !            19: }
        !            20: 
        !            21: whoops(s)
        !            22:        char *s;
        !            23: {      yyerror(s, "aborting");
        !            24:        fclose(tb);
        !            25:        unlink("pret.tmp");
        !            26:        exit(1);
        !            27: }
        !            28: 
        !            29: yyerror(s1, s2)
        !            30:        char *s1, *s2;
        !            31: {
        !            32:        char buf[512];
        !            33:        sprintf(buf, s1, s2);
        !            34: 
        !            35:        printf("\"%s\", line %2d: %s\n", filename, linenumber, buf);
        !            36:        fflush(stdout);
        !            37:        anyerror++;
        !            38: }
        !            39: 
        !            40: warning(s1, s2)
        !            41:        char *s1, *s2;
        !            42: {
        !            43:        printf("\"%s\", line %2d, warning: %s", filename, linenumber, s1);
        !            44:        if (strlen(s2) > 0 && strcmp(s1, "syntax error") != 0)
        !            45:                printf(" (%s)\n", s2);
        !            46:        else
        !            47:                printf("\n");
        !            48: }
        !            49: 
        !            50: release()
        !            51: { register struct ENTRY *this, *temp1, *temp2;
        !            52:   register struct PILAR  *that, *temp3;
        !            53: 
        !            54:        this = base;
        !            55:        while (this != NULL)
        !            56:        {       temp1 = this->nextrow;
        !            57:                do
        !            58:                {       temp2 = this->nextcol;
        !            59:                        that = this->pilar;
        !            60:                        do
        !            61:                        {       temp3 = that->nxtp;
        !            62:                                free(that);
        !            63:                                that = temp3;
        !            64:                        } while (that != NULL);
        !            65:                        free(this);
        !            66:                        this = temp2;
        !            67:                } while (this != NULL);
        !            68:                this = temp1;
        !            69:        }
        !            70:        nrrows = nrcols = curstate = curdepth = 0;
        !            71:        nrvars = realnrvars = 0;
        !            72: }
        !            73: 
        !            74: struct PILAR *
        !            75: newunit()
        !            76: { struct PILAR  *try;
        !            77: 
        !            78:        try = (struct PILAR *) Emalloc(sizeof(struct PILAR));
        !            79: 
        !            80:        try->transf = NOSTATE;
        !            81:        try->code = NONE;
        !            82:        try->nxtp = NULL;
        !            83: 
        !            84:        return try;
        !            85: }
        !            86: 
        !            87: struct ENTRY *
        !            88: newentry()
        !            89: { struct ENTRY *try;
        !            90: 
        !            91:        try = (struct ENTRY *) Emalloc(sizeof(struct ENTRY));
        !            92: 
        !            93:        try->pilar = newunit();
        !            94:        try->nrpils = 0;
        !            95:        try->nextrow = try->nextcol = NULL;
        !            96:        return try;
        !            97: }

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