#include <ctype.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

typedef enum mode {
	NONE,
	LIST,
} mode;

typedef enum types {
	HEADING,
	DATE,
	TODO,
	BULLET,
} types;

typedef struct token {
	char data[256];
	types type;
} token;

mode m = NONE;

token tokens[1024];
int tokcount = 0;
	
void eprint(char *msg) {
	fprintf(stderr, "error: %s\n", msg);
	exit(1);
}

void printashtml(token t) {
	char *start, *end;
	switch (t.type) {
		case HEADING: start = "<h1>"; end = "</h1>"; break;
		case DATE: start = "<h2>"; end = "</h2>"; break;
		case TODO: start = "<h3>"; end = "</h3>"; break;
		case BULLET: start = "<p>"; end = "</p>"; break;
	}
	printf("%s%s%s\n", start, t.data, end);
}

char *stripwhitespace(char *expr) {
	while (isblank(expr[0])) expr++;

	while (isblank(expr[strlen(expr) - 1])) expr[strlen(expr) - 1] = 0;

	return expr;
}

int readuntil(char *file, int off, char end, types t) {
	int j = 0;
	char tok[256];

	off++;
	while (file[off] != end) {
		if (file[off] == 0) eprint("Never closed expression!") ;
		tok[j] = file[off];
		off++;
		j++;
	}

	tok[j] = 0;

	memcpy(tokens[tokcount].data, stripwhitespace(tok),  256);
	tokens[tokcount].type = t;
	tokcount++;

	return off;
}

int main(int argc, char **argv) {
	for (int i = 0; i < argc && argc != 1; i++) {
		if (strcmp(argv[i], "-l") == 0) m = LIST;
	}

	char file[INT16_MAX];
	int i;
	char c;
	while ((c = getchar()) != EOF) {
		file[i] = c;
		i++;
	}
	file[i] = 0;

	for (i = 0; i < strlen(file); i++) {
		switch (file[i]) {
			case '*': i = readuntil(file, i, '*', HEADING); break;
			case '[': i = readuntil(file, i, ']', DATE); break;
			case '{': i = readuntil(file, i, '}', TODO); break;
			case '-': i = readuntil(file, i, '\n', BULLET); break;
		}
	}

	switch (m) {
		case LIST:
			for (int i = 0; i < tokcount; i++)
				if (tokens[i].type == HEADING) printf("%s\n", tokens[i].data);
			break;
		case NONE: return 0;
	}
	return 0;
}