TokenType token_type(const string &str)
{
if (is_valid_operator(str))
return operator_symbol;
if (is_valid_operator_as_function(str))
return op_function;
if (is_valid_identifier(str))
return plain_identifier;
if (is_valid_symbol(str))
return symbol;
if (is_valid_label(str))
return label;
if (is_valid_number(str))
return number;
if (is_valid_type_name(str))
return type_id;
if (is_valid_type_var(str))
return type_var;
if (is_valid_builtin(str))
return builtin;
if (is_valid_string_lit(str))
return string_lit;
return invalid;
}
int
validate (token_t *token_array)
{
int i = 0;
int res = 1;
int in_subshell = 0;
int token_array_len = 0;
while (!(token_array[i]->line_num == -1)) {
token_array_len++;
i++;
}
i = 0;
while (i < token_array_len && !(token_array[i]->line_num == -1))
{
char *operand = token_array[i]->word;
// if (!is_char_validated(operand)) syntax_error(token_array[i]->line_num);
if (!is_valid_operator(operand) && !is_valid_word(operand)) syntax_error(token_array[i]->line_num);
if (operand[0] == '(')
{
in_subshell = 1;
if (i + 1 >= token_array_len) {
res = 0;
syntax_error(token_array_len);
}
else
{
if (token_array[i + 1]->word[0] != ')')
{
token_t *sub_token_array = checked_malloc(sizeof (token_t) * 128);
tokenize (token_array[i+1]->word, sub_token_array, token_array[i+1]->line_num);
// int j = 0;
// printf("subshell\n" );
// while (sub_token_array[j]->line_num != -1) {
// printf ("token %d\n word:'%s' line_number:%d\n", j, sub_token_array[j]->word, sub_token_array[j]->line_num);
// j++;
// }
if (validate (sub_token_array))
{
i++;
}
}
}
i++;
continue;
}
if (operand[0] == ')')
{
if (i - 1 < 0) {
res = 0;
syntax_error(0);
}
else
{
if (!in_subshell)
{
res = 0;
// error_number = (i - 1 >= 0) ? token_array[i - 1]->line_num: token_array[i]->line_num;
syntax_error(token_array[i]->line_num);
}
else
{
in_subshell = 0;
}
}
i++;
continue;
}
if (!strcmp(operand, ";") || !strcmp(operand, "||") || !strcmp(operand, "|") || !strcmp(operand, "&&"))
{
if (i - 1 < 0)
{
res = 0;
syntax_error(token_array[i]->line_num);
}
// else
// {
// if
// }
if (!strcmp(operand, ";")) {
if (i < token_array_len - 1 && (!strcmp(token_array[i + 1]->word, "&&")
|| !strcmp(token_array[i + 1]->word, "||") || !strcmp(token_array[i + 1]->word, "|")
|| token_array[i + 1]->word[0] == '>' || token_array[i + 1]->word[0] == '<' ||
!strcmp(token_array[i+1]->word, ";")))
{
res = 0;
syntax_error(token_array[i]->line_num);
}
if (i >= token_array_len - 1)
{
res = 0;
syntax_error(token_array[i]->line_num);
}
if (i - 1 >= 0)
{
char *tmp = token_array[i - 1]->word;
int j = strlen(tmp) - 1;
while (j >= 0)
{
if (tmp[j] == ' ' || tmp[j] == '\t') {j--; continue;}
if (tmp[j] == '>' || tmp[j] == '<')
{
res = 0;
syntax_error(token_array[i - 1]->line_num);
}
j--;
}
}
}
else
{
if (i < token_array_len - 1 && (!strcmp(token_array[i + 1]->word, "&&")
|| !strcmp(token_array[i + 1]->word, "||") || !strcmp(token_array[i + 1]->word, "|")
))
{
res = 0;
syntax_error(token_array[i]->line_num);
}
if (i >= token_array_len - 1)
{
res = 0;
syntax_error(token_array[i]->line_num);
}
}
}
if (!strcmp(operand, "<") || !strcmp(operand, ">"))
{
if (i == token_array_len - 1 || i == 0)
{
res = 0;
syntax_error(token_array[i]->line_num);
}
else
{
if (!strcmp(token_array[i+1]->word, ">") || !strcmp(token_array[i+1]->word, "<"))
{
res = 0;
syntax_error(token_array[i]->line_num);
}
}
}
i++;
}
return res;
}
