void sinsp_evt_formatter::set_format(const string& fmt)
{
uint32_t j;
uint32_t last_nontoken_str_start = 0;
string lfmt(fmt);
if(lfmt == "")
{
throw sinsp_exception("empty formatting token");
}
//
// If the string starts with a *, it means that we are ok with printing
// the string even when not all the values it specifies are set.
//
if(lfmt[0] == '*')
{
m_require_all_values = false;
lfmt.erase(0, 1);
}
else
{
m_require_all_values = true;
}
//
// Parse the string and extract the tokens
//
const char* cfmt = lfmt.c_str();
m_tokens.clear();
for(j = 0; j < lfmt.length(); j++)
{
if(cfmt[j] == '%')
{
if(last_nontoken_str_start != j)
{
rawstring_check* newtkn = new rawstring_check(lfmt.substr(last_nontoken_str_start, j - last_nontoken_str_start));
m_tokens.push_back(newtkn);
m_chks_to_free.push_back(newtkn);
}
sinsp_filter_check* chk = g_filterlist.new_filter_check_from_fldname(string(cfmt + j + 1),
m_inspector,
false);
if(chk == NULL)
{
throw sinsp_exception("invalid formatting token " + string(cfmt + j + 1));
}
m_chks_to_free.push_back(chk);
j += chk->parse_field_name(cfmt + j + 1);
ASSERT(j <= lfmt.length());
m_tokens.push_back(chk);
last_nontoken_str_start = j + 1;
}
}
if(last_nontoken_str_start != j)
{
m_tokens.push_back(new rawstring_check(lfmt.substr(last_nontoken_str_start, j - last_nontoken_str_start)));
}
}
void sinsp_evt_formatter::set_format(const string& fmt)
{
uint32_t j;
uint32_t last_nontoken_str_start = 0;
string lfmt(fmt);
if(lfmt == "")
{
throw sinsp_exception("empty formatting token");
}
//
// If the string starts with a *, it means that we are ok with printing
// the string even when not all the values it specifies are set.
//
if(lfmt[0] == '*')
{
m_require_all_values = false;
lfmt.erase(0, 1);
}
else
{
m_require_all_values = true;
}
//
// Parse the string and extract the tokens
//
const char* cfmt = lfmt.c_str();
m_tokens.clear();
uint32_t lfmtlen = lfmt.length();
for(j = 0; j < lfmtlen; j++)
{
if(cfmt[j] == '%')
{
int toklen = 0;
if(last_nontoken_str_start != j)
{
rawstring_check* newtkn = new rawstring_check(lfmt.substr(last_nontoken_str_start, j - last_nontoken_str_start));
m_tokens.push_back(newtkn);
m_tokenlens.push_back(0);
m_chks_to_free.push_back(newtkn);
}
if(j == lfmtlen - 1)
{
throw sinsp_exception("invalid formatting syntax: formatting cannot end with a %");
}
//
// If the field specifier starts with a number, it means that we have a length modifier
//
if(isdigit(cfmt[j + 1]))
{
//
// Parse the token length
//
sscanf(cfmt+ j + 1, "%d", &toklen);
//
// Advance until the beginning of the field name
//
while(true)
{
if(j == lfmtlen - 1)
{
throw sinsp_exception("invalid formatting syntax: formatting cannot end with a number");
}
else if(isdigit(cfmt[j + 1]))
{
j++;
continue;
}
else
{
break;
}
}
}
sinsp_filter_check* chk = g_filterlist.new_filter_check_from_fldname(string(cfmt + j + 1),
m_inspector,
false);
if(chk == NULL)
{
throw sinsp_exception("invalid formatting token " + string(cfmt + j + 1));
}
m_chks_to_free.push_back(chk);
j += chk->parse_field_name(cfmt + j + 1);
ASSERT(j <= lfmt.length());
m_tokens.push_back(chk);
m_tokenlens.push_back(toklen);
last_nontoken_str_start = j + 1;
}
}
if(last_nontoken_str_start != j)
{
m_tokens.push_back(new rawstring_check(lfmt.substr(last_nontoken_str_start, j - last_nontoken_str_start)));
m_tokenlens.push_back(0);
}
}
