42/42_EXT_05_computorv1
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parse sign

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hugogogo
2026-05-01 22:39:15 +02:00
parent 416d170ed2
commit bcbd3b2abb
6 changed files with 117 additions and 31 deletions
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53
src/lexer.c
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@@ -11,8 +11,48 @@ static bool token_is_variable(const char *input, int input_pos, int *token_size)
return false;
}
// number can be int "123" or double "123.456"
static bool token_is_number(const char *input, int input_pos, int *token_size)
// number can be int "123"
static bool token_is_number_int(const char *input, int input_pos, int *token_size)
{
int number_size;
int max_number_size;
if (!ft_isdigit(input[input_pos]))
{
return false;
}
number_size = 1;
max_number_size = 16; // max size for int
while (number_size <= max_number_size)
{
if (ft_isdigit(input[input_pos + number_size]))
{
number_size++;
}
else if (input[input_pos + number_size] == '.')
{
if (ft_isdigit(input[input_pos + number_size + 1]))
{
// number is double
return false;
}
else
break;
}
else
break;
}
if (number_size > max_number_size)
{
stop_errors(ERROR_NUMBER_TOO_BIG, &input[input_pos]);
}
*token_size = number_size;
return true;
}
// number can be double "123.456"
static bool token_is_number_double(const char *input, int input_pos, int *token_size)
{
int number_size;
int max_number_size;
@@ -147,9 +187,14 @@ int lexerize(const char *input, token *tokens)
tokens[tokens_count].type = TOKEN_VARIABLE;
tokens[tokens_count].value_char = 'x';
}
else if (token_is_number(input, input_pos, &token_size))
else if (token_is_number_int(input, input_pos, &token_size))
{
tokens[tokens_count].type = TOKEN_NUMBER;
tokens[tokens_count].type = TOKEN_NUMBER_INT;
tokens[tokens_count].value_int = ft_atoi(&input[input_pos]);
}
else if (token_is_number_double(input, input_pos, &token_size))
{
tokens[tokens_count].type = TOKEN_NUMBER_DOUBLE;
tokens[tokens_count].value_double = ft_atof(&input[input_pos]);
}
else if (token_is_power(input, input_pos, &token_size))