#include <voxula/internals/utility/text.h>

bool vx_is_ascii_sign(char character)
{
    if( vx_is_ascii_sign_of_block_1(character)
     || vx_is_ascii_sign_of_block_2(character)
     || vx_is_ascii_sign_of_block_3(character)
     || vx_is_ascii_sign_of_block_4(character)
    ) {
        return true;
    }
    return false;
}

bool vx_is_ascii_sign_of_block_1(char character)
{
    if(character < 0x21)
    {
        return false;
    }
    if(character > 0x2f)
    {
        return false;
    }
    return true;
}

bool vx_is_ascii_sign_of_block_2(char character)
{
    if(character < 0x3a)
    {
        return false;
    }
    if(character > 0x40)
    {
        return false;
    }
    return true;
}

bool vx_is_ascii_sign_of_block_3(char character)
{
    if(character < 0x5b)
    {
        return false;
    }
    if(character > 0x60)
    {
        return false;
    }
    return true;
}

bool vx_is_ascii_sign_of_block_4(char character)
{
    if(character < 0x7b)
    {
        return false;
    }
    if(character > 0x7e)
    {
        return false;
    }
    return true;
}

bool vx_is_ascii_letter(char character)
{
    if( vx_is_ascii_lower(character)
     || vx_is_ascii_upper(character)
    ) {
        return true;
    }
    return false;
}

bool vx_is_ascii_lower(char character)
{
    if(character < 'a')
    {
        return false;
    }
    if(character > 'z')
    {
        return false;
    }
    return true;
}

bool vx_is_ascii_upper(char character)
{
    if(character < 'A')
    {
        return false;
    }
    if(character > 'Z')
    {
        return false;
    }
    return true;
}

bool vx_is_ascii_digit(char character)
{
    if(character < '0')
    {
        return false;
    }
    if(character > '9')
    {
        return false;
    }
    return true;
}

bool vx_is_ascii_blank(char character)
{
    if(character == ' ')
    {
        return true;
    }
    if(character == '\t')
    {
        return true;
    }
    return false;
}

bool vx_is_ascii_control(char character)
{
    if(character < 32)
    {
        return true;
    }
    if(character == 127)
    {
        return true;
    }
    return false;
}

void vx_write_spaces(FILE *output, uint32_t count)
{
    uint32_t space_index = 0;
    while(space_index < count)
    {
        fputc(' ', output);
        ++space_index;
    }
}

uint8_t vx_digits_for_decimal(uint32_t decimal)
{
    if(decimal < 10)
    {
        return 1;
    }
    if(decimal < 100)
    {
        return 2;
    }
    if(decimal < 1000)
    {
        return 3;
    }
    if(decimal < 10000)
    {
        return 4;
    }
    if(decimal < 100000)
    {
        return 5;
    }
    if(decimal < 1000000)
    {
        return 6;
    }
    if(decimal < 10000000)
    {
        return 7;
    }
    if(decimal < 100000000)
    {
        return 8;
    }
    if(decimal < 1000000000)
    {
        return 9;
    }
    return 10;
}