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#include <stdio.h>
#include "vmp.h"
int main(int argc, char** argv)
{
/* Get input and output file name */
if (argc != 2) {
error("Usage: vmp <INPUT_FILE_NAME>\n", NO_ARG);
}
const char* in_file_name = argv[1];
if (sizeof(in_file_name) <= 3) {
error("File name is too short\n",IN_NAME_TOO_SHORT);
}
run(in_file_name);
return 0;
}
void error(const char* msg, int code) {
printf("%s", msg);
exit(code);
}
void run(const char* in_file_name) {
FILE* fd = fopen(in_file_name, "r");
if (!fd) {
error("Cannot open input file.\n", CANNOT_OPEN_FILE);
}
char line[1024];
while(fgets(line, sizeof(line), fd) != NULL) {
int len = strlen(line);
while (len > 0 && isspace(line[len - 1])) {
line[--len] = '\0';
}
parse_and_output(line);
}
fclose(fd);
}
void parse_head(const char* line) {
int level = 0;
size_t i = 0;
while(line[i] == '#' && i < strlen(line)) {
level++;
i++;
}
if (i < strlen(line) && line[i] == ' ' && level <=6 ) {
printf("<h%d>", level);
int start = i;
int length = strlen(line);
char head_text[512];
strncpy(head_text, line + start + 1, length);
printf("%s", head_text);
printf("</h%d>", level);
} else {
int start = i;
int length = strlen(line);
char head_text[512];
strncpy(head_text, line + start + 1, length);
printf("%s", head_text);
}
}
void parse_and_output(const char* line) {
int in_empty_line = 0;
/* Empty */
if (strcmp(line, "") == 0) {
printf("<br>\n");
in_empty_line = 1;
} else {
in_empty_line = 0;
char line_head = line[0];
if (line_head == '#') {
parse_head(line);
} else if (strcmp(line, "---") == 0) {
printf("<hr>\n");
}
}
}
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