static int parse_options(char *options, struct super_block *sb)
{
struct nilfs_sb_info *sbi = NILFS_SB(sb);
char *p;
substring_t args[MAX_OPT_ARGS];
int option;
if (!options)
return 1;
while ((p = strsep(&options, ",")) != NULL) {
int token;
if (!*p)
continue;
token = match_token(p, tokens, args);
switch (token) {
case Opt_barrier:
if (match_bool(&args[0], &option))
return 0;
if (option)
nilfs_set_opt(sbi, BARRIER);
else
nilfs_clear_opt(sbi, BARRIER);
break;
case Opt_order:
if (strcmp(args[0].from, "relaxed") == 0)
/* Ordered data semantics */
nilfs_clear_opt(sbi, STRICT_ORDER);
else if (strcmp(args[0].from, "strict") == 0)
/* Strict in-order semantics */
nilfs_set_opt(sbi, STRICT_ORDER);
else
return 0;
break;
case Opt_err_panic:
nilfs_write_opt(sbi, ERROR_MODE, ERRORS_PANIC);
break;
case Opt_err_ro:
nilfs_write_opt(sbi, ERROR_MODE, ERRORS_RO);
break;
case Opt_err_cont:
nilfs_write_opt(sbi, ERROR_MODE, ERRORS_CONT);
break;
case Opt_snapshot:
if (match_int(&args[0], &option) || option <= 0)
return 0;
if (!(sb->s_flags & MS_RDONLY))
return 0;
sbi->s_snapshot_cno = option;
nilfs_set_opt(sbi, SNAPSHOT);
break;
default:
printk(KERN_ERR
"NILFS: Unrecognized mount option \"%s\"\n", p);
return 0;
}
}
return 1;
}
/*CREATE LIST OF TOKENS*/
void Createlist(char *exp,List infix_l)
{
char p[MAXNAME]; //store var name
int cnt;
while((*exp == ' ' || *exp == '\t') && *exp!='\0') //remove spaces
exp++;
if(*exp=='\'') //override check eval symbol.
exp++;
if(*exp == '\0')
return;
while(*exp!='\0') //read till end of line
{
while((*exp == ' ' || *exp == '\t') && *exp!='\0')
exp++;
if(match_char(*exp)==0) //if variable
{
exp = Extract_word(exp,p);
cnt = Count(infix_l);
InsertAfter(p,infix_l,cnt);
}
else if(match_num(*exp)==0) //if number
{
exp = Extract_num(exp,p);
cnt = Count(infix_l);
InsertAfter(p,infix_l,cnt);
add_value(p,0,p);
}
else if(match_bool(*exp)==0) //if boolean op
{
exp = Extract_bool(exp,p);
cnt = Count(infix_l);
InsertAfter(p,infix_l,cnt);
}
else
{
p[0] = *exp; //else single letter operator
p[1]='\0';
cnt = Count(infix_l);
InsertAfter(p,infix_l,cnt);
exp++;
}
}
}
char* Extract_bool(char *exp,char p[]) //extract bool operator
{
int i=0;
p[i] = *exp;
exp++;
i++;
if(match_bool(*exp)==0)
{
p[i]=*exp;
exp++;
i++;
}
p[i] = '\0';
return exp;
}
void json_value() {
if(look_ahead == '{')
json_object();
else if(look_ahead == '[')
json_array();
else if(look_ahead == '\"'){
std::string d = match_str();
std::cout << "Get Value: " << d <<std::endl;
}else{
// number,true, false, null
if(look_ahead == '\"')
match_str();
else if(look_ahead == 't' || look_ahead == 'f'){
match_bool(look_ahead);
}else if(look_ahead<='9' && look_ahead >='0'){
match_digit();
}else
;
}
}
