Function lex_try_number

src/cypher/cypher.c:312–325

Try to lex a number starting at position i. Returns true if matched. */

/* Try to lex a number starting at position i. Returns true if matched. */
static bool lex_try_number(const char *input, int len, int *i, cbm_lex_result_t *out) {
    char c = input[*i];
    if (!isdigit((unsigned char)c) &&
        !(c == '.' && *i + SKIP_ONE < len && isdigit((unsigned char)input[*i + SKIP_ONE]))) {
        return false;
    }
    int start = *i;
    while (*i < len && (isdigit((unsigned char)input[*i]) ||
                        (input[*i] == '.' && *i + SKIP_ONE < len && input[*i + SKIP_ONE] != '.'))) {
        (*i)++;
    }
    lex_push_n(out, TOK_NUMBER, input + start, *i - start, start);
    return true;
}

/* Skip whitespace and comments. Returns true if something was skipped. */
static bool lex_skip_whitespace_comments(const char *input, int len, int *i) {