AsciiTextGenerator is text generator like FIGlet fonts.

AsciiTextGenerator.c

/*Ascii text Generator in C. - Convert your text or any text to fancy ASCII font.
Artic Coder */

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

#define TEXT_LEN 0x64
#define FONT_HEIGHT 5
#define FONT_WIDTH 53
#define FONT_LEN 0x7F

void StoreFonts(char *[]);
int PrintLine(char *);
void PrintAsciiFont(char *);

int main(void)
{
    char text[TEXT_LEN] = {'\0'};
    puts("Enter text.");
    fgets(text,TEXT_LEN,stdin);
    strtok(text, "\n");

    PrintAsciiFont(text);
    getchar();
    return 0;
}

void PrintAsciiFont(char *ascii_text)
{
    char split_line[TEXT_LEN] = {'\0'};
    int ascii_text_len = strlen(ascii_text),split_begin = 0,split_index = 18
    ;

    if(ascii_text_len > split_index)
    {
        do
        {
            strncpy(split_line,&ascii_text[split_begin], split_index);
            PrintLine(split_line);
            split_begin += split_index;
        }while(split_begin <= ascii_text_len);
    }
    else
    {
       PrintLine(ascii_text);
    }
}


int PrintLine(char *ascii_text)
{
    int print_status = 0;

    char *fonts[FONT_LEN] = {'\0'};
    StoreFonts(fonts);

    int i = 0,j = 0,k = 0,h = 0,alphanum_count = 0;
    size_t text_len = strlen(ascii_text);

    int index_arr[text_len];
    memset(index_arr,0,sizeof(index_arr));

    /*Error checking for special characters.*/
    for(i = 0; i < text_len;++i)
    {
        if(isalnum(ascii_text[i]) || isspace(ascii_text[i])){
            alphanum_count++;
        }
    }

    if(alphanum_count != text_len)
    {
        fprintf(stderr,"Error : AsciiTextGenerator fonts only supports Alphanumeric values [A-Z,a-z,0-9] . Special characters and symbols not supported yet! thanks.");
        print_status = 1;
        return print_status;
    }

    for(h = 1; h <= FONT_HEIGHT; h++)
    {
        for(i = 0; i < text_len; i++)
        {
            for(j =  index_arr[k]; j < strlen(fonts[ascii_text[i]]); j++)
            {
                if(fonts[ascii_text[i]][j] == FONT_LEN)
                {
                    index_arr[k++] = j+1;
                    break;
                }
                putchar(fonts[ascii_text[i]][j]);
            }
        }
        k = 0;
        printf("\n");
    }
    return print_status;
}

/*Store all fonts (A-Z,a-z,0-9). Special characters not supported yet.*/
void StoreFonts(char *fonts[])
{

    fonts[' '] = "\
        \
        \
        \
        \
        ";

    fonts['0'] = "\
   ___   \
  / _ \\  \
 | | | | \
 | |_| | \
  \\___/  ";

  fonts['1'] = "\
  _ \
 / |\
 | |\
 | |\
 |_|";

    fonts['2'] = "\
  ____   \
 |____\\  \
   __) | \
  / __/  \
 |_____| ";

  fonts['3'] = "\
  _____ \
 |___ / \
   |_ \\ \
  ___) |\
 |____/ ";

  fonts['4'] = "\
  _  _   \
 | || |  \
 | || |_ \
 |__   _|\
    |_|  ";

  fonts['5'] = "\
  ____    \
 | ___|   \
 |___ \\    \
 ___) |  \
 |____/   ";

  fonts['6'] = "\
   __   \
  / /_  \
 | '_ \\ \
 | (_) |\
  \\___/ ";

  fonts['7'] = "\
  _____ \
 |___  |\
    / / \
   / /  \
  /_/   ";

  fonts['8'] = "\
   ___  \
  ( _ ) \
  / _ \\ \
 | (_) |\
  \\___/ ";

  fonts['9'] = "\
   ___  \
  / _ \\ \
 | (_) |\
  \\__, |\
    /_/ ";

fonts['A'] = fonts['a'] = "\
     _     \
    / \\    \
   / _ \\   \
  / ___ \\  \
 /_/   \\_\\ ";

    fonts['B'] =  fonts['b'] ="\
  ____  \
 | __ ) \
 |  _ \\ \
 | |_) |\
 |____/ ";

    fonts['C'] = fonts['c'] = "\
   ____  \
  / ___| \
 | |     \
 | |___  \
  \\____| ";


    fonts['D'] = fonts['d'] = "\
  ____  \
 |  _  \\\
 | | | |\
 | |_| |\
 |____/ ";

    fonts['E'] =   fonts['e'] ="\
  _____ \
 | ____|\
 |  _|  \
 | |___ \
 |_____|";

    fonts['F'] = fonts['f'] = "\
  _____ \
 |  ___|\
 | |_   \
 |  _|  \
 |_|    ";

    fonts['G'] =  fonts['g'] = "\
   ____ \
  / ___|\
 | |  _ \
 | |_| |\
  \\____|";

    fonts['H'] =   fonts['h'] ="\
  _   _ \
 | | | |\
 | |_| |\
 |  _  |\
 |_| |_|";

    fonts['I'] =   fonts['i'] ="\
  ___ \
 |_ _|\
  | | \
  | | \
 |___|";

    fonts['J'] =   fonts['j'] ="\
      _ \
     | |\
  _  | |\
 | |_| |\
  \\___/ ";

    fonts['K'] =  fonts['k'] = "\
  _  __\
 | |/ /\
 | ' / \
 | . \\ \
 |_|\\_\\";

    fonts['L'] =  fonts['l'] = "\
  _     \
 | |    \
 | |    \
 | |___ \
 |_____|";

    fonts['M'] =  fonts['m'] = "\
  __  __ \
 |  \\/  |\
 | |\\/| |\
 | |  | |\
 |_|  |_|";

    fonts['N'] =  fonts['n'] = "\
  _   _ \
 | \\ | |\
 |  \\| |\
 | |\\  |\
 |_| \\_|";

    fonts['O'] = fonts['o'] ="\
   ___    \
  / _ \\   \
 | | | |  \
 | |_| |  \
  \\___/   ";

    fonts['P'] =  fonts['p'] = "\
  ____  \
 |  _ \\ \
 | |_) |\
 |  __/ \
 |_|    ";

    fonts['Q'] =  fonts['q'] = "\
   ___   \
  / _ \\  \
 | | | | \
 | |_| | \
  \\__\\ _\\";

    fonts['R'] =  fonts['r'] = "\
  ____  \
 |  _ \\ \
 | |_) |\
 |  _ < \
 |_| \\_\\";

    fonts['S'] =  fonts['s'] = "\
  ____  \
 / ___| \
 \\___ \\ \
  ___) |\
 |____/ ";

    fonts['T'] =  fonts['t'] = "\
  _____ \
 |_   _|\
   | |  \
   | |  \
   |_|  ";

    fonts['U'] =  fonts['u'] = "\
  _   _ \
 | | | |\
 | | | |\
 | |_| |\
  \\___/ ";

    fonts['V'] =  fonts['v'] = "\
 __     __\
 \\ \\   / /\
  \\ \\ / / \
   \\ V /  \
    \\_/   ";


    fonts['W'] =  fonts['w'] = "\
 __        __\
 \\ \\      / /\
  \\ \\ /\\ / / \
   \\ V  V /  \
    \\_/\\_/   ";

    fonts['X'] =   fonts['x'] ="\
 __  __\
 \\ \\/ /\
  \\  / \
  /  \\ \
 /_/\\_\\";

    fonts['Y'] =  fonts['y'] = "\
 __   __\
 \\ \\ / /\
  \\ V / \
   | |  \
   |_|  ";

    fonts['Z'] =  fonts['z'] = "\
  _____\
 |__  /\
   / / \
  / /_ \
 /____|";
}