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#include "config.h"
#include <stdio.h>
#include <string.h>
/**
* cdump - routines to parse simple C structures.
*
* This code is designed to produce data structures summarizing C code.
* It only operates on simple, well-formed C code (eg. specific headers
* which you want to autogenerate from), but it should be fairly easy to
* enhance if desired.
*
* Author: Rusty Russell <rusty@rustcorp.com.au>
* License: BSD-MIT
*
* Example:
* // Creates a simple print function for a structure.
* #include <ccan/cdump/cdump.h>
* #include <ccan/tal/grab_file/grab_file.h>
* #include <ccan/err/err.h>
*
* static void print_as(const char *fmt, const char *member_name)
* {
* printf("\tprintf(\"%%s:%s\\n\", \"%s\", s->%s);\n",
* fmt, member_name, member_name);
* }
*
* int main(int argc, char *argv[])
* {
* char *code, *problems;
* struct cdump_definitions *defs;
* int i, j;
*
* // Read code from stdin.
* code = grab_file(NULL, NULL);
*
* defs = cdump_extract(NULL, code, &problems);
* if (!defs)
* errx(1, "Parsing stdin: %s", problems);
*
* for (i = 1; i < argc; i++) {
* struct cdump_type *t = strmap_get(&defs->structs, argv[i]);
* if (!t)
* errx(1, "Could not find struct %s", argv[i]);
*
* printf("void print_struct_%s(const struct %s *s)\n"
* "{\n", argv[i], argv[i]);
* for (j = 0; j < tal_count(t->u.members); j++) {
* const struct cdump_member *m = t->u.members + j;
* switch (m->type->kind) {
* case CDUMP_STRUCT:
* case CDUMP_UNION:
* case CDUMP_ARRAY:
* // Too hard for this simple example.
* printf("\tprintf(\"%%s:???\\n\", \"%s\");\n",
* m->name);
* break;
* case CDUMP_ENUM:
* print_as("%i", m->name);
* break;
* case CDUMP_POINTER:
* print_as("%p", m->name);
* break;
* case CDUMP_UNKNOWN:
* if (!strcmp(m->type->name, "int"))
* print_as("%i", m->name);
* else if (!strcmp(m->type->name, "long int"))
* print_as("%li", m->name);
* else if (!strcmp(m->type->name, "unsigned int"))
* print_as("%u", m->name);
* // etc...
* break;
* }
* }
* printf("}\n");
* }
* return 0;
* }
*/
int main(int argc, char *argv[])
{
/* Expect exactly one argument */
if (argc != 2)
return 1;
if (strcmp(argv[1], "depends") == 0) {
printf("ccan/tal\n");
printf("ccan/tal/str\n");
printf("ccan/strmap\n");
return 0;
}
return 1;
}
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