handle predefined and command line macro definitions

1 files changed, 0 insertions, 258 deletions

diff --git a/main.c b/main.c
deleted file mode 100644
index 6ad8160..0000000
--- a/main.c
+++ /dev/null
@@ -1,258 +0,0 @@
-#define _XOPEN_SOURCE 700
-#include <errno.h>
-#include <libgen.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "cpp.h"
-#include "link.h"
-#include "trigraph.h"
-#include "version.h"
-
-static char **sources = NULL;
-size_t nsources = 0;
-
-static char **objects = NULL;
-size_t nobjects = 0;
-
-void compile(FILE *in, FILE *out, long int version)
-{
-	printf("compiling\n");
-}
-
-void assemble(FILE *in, FILE *out)
-{
-	printf("assembling\n");
-}
-
-long int setversion(const char *progname)
-{
-	long int version = LATEST;
-
-	define("__STDC__", "1");
-	/* define("__FILE__", argv[optind]); */
-	/* define("__DATE__", (char*)-1); */
-	/* define("__TIME__", (char*)-1); */
-
-	if (!strcmp(progname, "c18")) {
-		version = C18;
-	} else if (!strcmp(progname, "c11")) {
-		/* warn */
-		version = C11;
-	} else if (!strcmp(progname, "c99")) {
-		version = C99;
-	} else if (!strcmp(progname, "c89")) {
-		version = C95;
-	}
-
-	/* if (!defined("__STDC_VERSION__") { */
-	/* 	version = C89; */
-	/* } */
-
-	/* if (!defined("__STDC__")) { */
-	/* 	version = KNR; */
-	/* } */
-
-	if (version >= C95) {
-		char ppversion[8] = "";
-		sprintf(ppversion, "%dL", version);
-		define("__STDC_VERSION__", ppversion);
-	}
-	
-	if (version >= C99) {
-		define("__STDC_HOSTED__", "1");
-		define("__STDC_IEC_559__", "1");
-		define("__STDC_IEC_559_COMPLEX__", "1");
-		define("__STDC_ISO_10646__", ISO_10646_VERSION);
-	}
-
-	if (version >= C11) {
-		define("__STDC_UTF_16__", "1");
-		define("__STDC_UTF_32__", "1");
-		define("__STDC_ANALYZABLE__", "1");
-		define("__STDC_LIB_EXT1__", "1");
-		/* __STDC_NO_ATOMICS__ */
-		/* __STDC_NO_COMPLEX__ */
-		/* __STDC_NO_THREADS__ */
-		/* __STDC_NO_VLA__ */
-	}
-
-	return version;
-}
-
-static int getoptarg(char *argv[], int i, char **arg)
-{
-	if (argv[i][2] != '\0') {
-		*arg = argv[i] + 2;
-		return 0;
-	}
-	*arg = argv[i + 1];
-	return 1;
-}
-
-void addobj(char *path)
-{
-	nobjects++;
-	objects = realloc(objects, sizeof(*objects) * nobjects);
-	objects[nobjects - 1] = path;
-
-	printf("adding '%s' to list of objects\n", path);
-}
-
-void addsource(char *path)
-{
-	nsources++;
-	sources = realloc(sources, sizeof(*sources) * nsources);
-	sources[nsources - 1] = path;
-	
-	printf("adding '%s' to list of source files\n", path);
-
-	char obj[strlen(path) + 1];
-	strcpy(obj, path);
-	obj[strlen(obj) - 1] = 'o';
-	addobj(obj);
-}
-
-int main(int argc, char *argv[])
-{
-	int cpp_stdout = 0;
-	int skip_linking = 0;
-	char *progname = basename(argv[0]);
-	char *output = "a.out";
-
-	/* special cases for different program names */
-	if (!strcmp(progname, "lint")) {
-	} else if (!strcmp(progname, "cflow")) {
-	} else if (!strcmp(progname, "ctags")) {
-	}
-
-	for (int i = 1; i < argc; i++) {
-		if (!strcmp(argv[i], "-c")) {
-			skip_linking = 1;
-
-		} else if (!strcmp(argv[i], "-g")) {
-			/* include debugging symbols */
-
-		} else if (!strcmp(argv[i], "-s")) {
-			/* strip */
-
-		} else if (!strcmp(argv[i], "-E")) {
-			cpp_stdout = 1;
-
-		} else if (!strncmp(argv[i], "-o", 2)) {
-			i += getoptarg(argv, i, &output);
-
-		} else if (!strncmp(argv[i], "-D", 2)) {
-			char *macro = NULL;
-			i += getoptarg(argv, i, &macro);
-			char *eq = strchr(macro, '=');
-			if (eq) {
-				*eq = '\0';
-				eq++;
-			}
-			define(macro, eq ? eq : "1");
-
-		} else if (!strncmp(argv[i], "-I", 2)) {
-			char *path = NULL;
-			i += getoptarg(argv, i, &path);
-			include(path);
-
-		} else if (!strncmp(argv[i], "-L", 2)) {
-			char *path = NULL;
-			i += getoptarg(argv, i, &path);
-			libpath(path);
-
-		} else if (!strncmp(argv[i], "-O", 2)) {
-			/* optimize */
-
-		} else if (!strncmp(argv[i], "-U", 2)) {
-			char *macro = NULL;
-			i += getoptarg(argv, i, &macro);
-			undef(macro);
-
-		} else if (!strncmp(argv[i], "-l", 2)) {
-			char *lib = NULL;
-			i += getoptarg(argv, i, &lib);
-			addobj(lib);
-
-		} else if (argv[i][0] == '-') {
-			fprintf(stderr, "%s: unknown option %s\n", progname, argv[i]);
-			/* invalid option */
-		} else {
-			addsource(argv[i]);
-		}
-	}
-
-	long int version = setversion(progname);
-
-	for (size_t i = 0; i < nsources; i++) {
-		printf("compiling '%s'\n", sources[i]);
-		FILE *in = fopen(sources[i], "r");
-		if (in == NULL) {
-			fprintf(stderr, "%s: %s: %s\n", progname, sources[i], strerror(errno));
-			continue;
-		}
-		FILE *out = tmpfile();
-		if (out == NULL) {
-			fprintf(stderr, "%s: tmpfile(): %s\n", progname, strerror(errno));
-			continue;
-		}
-
-		char *dot = strrchr(sources[i], '.');
-		if (!dot || strlen(dot) != 2) {
-			fprintf(stderr, "%s: don't know what to do with %s\n", progname, sources[i]);
-			return 1;
-		}
-
-		define("__FILE__", sources[i]);
-		switch (dot[1]) {
-		case 'c':
-			trigraph(in, out);
-
-			fclose(in);
-			in = out;
-			rewind(in);
-
-			if (cpp_stdout) {
-				out = stdout;
-			} else {
-				out = tmpfile();
-			}
-			preprocess(in, out, version);
-			if (cpp_stdout) {
-				break;
-			}
-
-			fclose(in);
-			in = out;
-			rewind(in);
-			out = tmpfile();
-			/* FALLTHRU */
-
-		case 'i':
-			compile(in, out, version);
-			/* if (-S) break; */
-
-			fclose(in);
-			in = out;
-			rewind(in);
-			out = tmpfile();
-			/* FALLTHRU */
-
-		case 's':
-			assemble(in, out);
-			break;
-
-		case 'a':
-		case 'o':
-			/* just link at the end */
-			break;
-
-		default:
-			fprintf(stderr, "%s: unknown file type %s\n", progname, sources[i]);
-		}
-	}
-
-	/* link(outfile, nobjects, objects); */
-}