foxp/src/printtree.c

#include <stdio.h>
#include <stdlib.h>

#include "syntax.h"

void printtree(struct SyntaxElement* syntaxtree, int depth) {
	if (syntaxtree == NULL)
		return;
	for (int i = 1; i <= depth; i++)
		putc(' ',stdout);
	switch (syntaxtree->type) {
		case TREE:
			printf("TREE\n");
			printtree((struct SyntaxElement*)syntaxtree->content, depth + 1);
			break;
		case TOKEN:
			printf("TOKEN: %s\n", (char*)syntaxtree->content);
			break;
		case STRING:
			printf("STRING: %s\n", (char*)syntaxtree->content);
			break;
		case NUMBER:
			// TODO: printtree NUMBER
			fprintf(stderr,"TODO: printtree NUMBER\n");
			exit(1);
		case NONE:
			printf("NONE\n");
			break;
	}
	if (syntaxtree->next != NULL)
		printtree(syntaxtree->next, depth);
	return;
}