122 lines
1.9 KiB
C
122 lines
1.9 KiB
C
/* mod2 -- compiler , althans: een aanzet daartoe */
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#include <stdio.h>
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#undef BUFSIZ /* Really neccesary??? */
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#include <system.h>
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#include "input.h"
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#include "f_info.h"
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#include "idf.h"
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#include "LLlex.h"
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#include "Lpars.h"
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static char *RcsId = "$Header:";
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char options[128];
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char *ProgName;
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extern int err_occurred;
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main(argc, argv)
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char *argv[];
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{
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register Nargc = 1;
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register char **Nargv = &argv[0];
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ProgName = *argv++;
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# ifdef DEBUG
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setbuf(stdout, (char *) 0);
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# endif
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while (--argc > 0) {
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if (**argv == '-')
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Option(*argv++);
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else
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Nargv[Nargc++] = *argv++;
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}
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Nargv[Nargc] = 0; /* terminate the arg vector */
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if (Nargc != 2) {
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fprintf(stderr, "%s: Use one file argument\n", ProgName);
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return 1;
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}
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#ifdef DEBUG
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printf("Mod2 compiler -- Debug version\n");
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debug("-D: Debugging on");
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#endif DEBUG
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return !Compile(Nargv[1]);
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}
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Compile(src)
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char *src;
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{
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extern struct tokenname tkidf[];
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#ifdef DEBUG
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printf("%s\n", src);
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#endif DEBUG
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if (! InsertFile(src, (char **) 0)) {
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fprintf(stderr,"%s: cannot open %s\n", ProgName, src);
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return 0;
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}
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LineNumber = 1;
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FileName = src;
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init_idf();
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reserve(tkidf);
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#ifdef DEBUG
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if (options['L'])
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LexScan();
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else if (options['T'])
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TimeScan();
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else
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#endif DEBUG
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CompUnit();
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#ifdef DEBUG
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if (options['h']) hash_stat();
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#endif DEBUG
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if (err_occurred) return 0;
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return 1;
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}
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#ifdef DEBUG
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LexScan()
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{
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register int symb;
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while ((symb = LLlex()) != EOF) {
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printf(">>> %s ", symbol2str(symb));
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switch(symb) {
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case IDENT:
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printf("%s\n", dot.TOK_IDF->id_text);
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break;
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case INTEGER:
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printf("%ld\n", dot.TOK_INT);
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break;
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case REAL:
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printf("%s\n", dot.TOK_REL);
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break;
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case STRING:
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printf("\"%s\"\n", dot.TOK_STR);
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break;
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default:
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putchar('\n');
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}
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}
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}
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TimeScan() {
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while (LLlex() != EOF) /* nothing */;
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}
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#endif
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Option(str)
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char *str;
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{
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#ifdef DEBUG
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debug("option %c", str[1]);
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#endif DEBUG
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options[str[1]]++; /* switch option on */
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}
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