CameronReed/Cpp-Argument-Parser
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Fix some weird choices I made two years ago

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This includes a potential two byte memory leak
This commit is contained in:
Cameron Reed 2024-03-16 10:50:00 -06:00
parent c5cc2f65d8
commit 2e7bf3b8c7
2 changed files with 37 additions and 22 deletions
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5
Inc/argparser.h
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@ -8,8 +8,7 @@ namespace Arguments
{
enum ERROR {
IMPOSSIBLE = -1,
NO_ERROR,
NO_ERROR = 0,
ERROR_UNKNOWN_OPTION,
ERROR_INCORRECT_TYPE,
ERROR_MISSING_ARGUMENT,
@ -70,10 +69,12 @@ private:
ERROR handle_short_option(const char option, const char* next_value);
ERROR handle_positional_argument(const char* arg);
ERROR get_option_data(Option* opt, const char* option_name, const char* data_str);
ERROR get_option_data(Option* opt, const char option_name, const char* data_str);
ERROR unknown_option(const char* option);
ERROR unknown_option(const char option);
ERROR incorrect_type(const char* option, const char* got);
ERROR missing_argument(const char* option);
ERROR missing_argument(const char option);
ERROR missing_positional_argument(const char* arg);
private:
const char* m_program_name;

54
Src/argparser.cpp
View File

@ -129,16 +129,11 @@ ERROR Parser::handle_long_option(const char* option, const char* next_value)
return unknown_option(option);
} else {
}
matched_option->m_found = true;
return get_option_data(matched_option, matched_option->m_name, next_value);
}
std::cout << "Congratulations! You have reached an impossible state" << std::endl << std::endl;
std::cout << "Reality is broken :)" << std::endl;
return IMPOSSIBLE;
matched_option->m_found = true;
return get_option_data(matched_option, option, next_value);
}
ERROR Parser::handle_short_option(const char option, const char* next_value)
@ -159,20 +154,11 @@ ERROR Parser::handle_short_option(const char option, const char* next_value)
return unknown_option(option);
} else {
matched_option->m_found = true;
char* name = new char[2];
name[0] = matched_option->m_short_name;
name[1] = 0;
return get_option_data(matched_option, name, next_value);
delete[] name;
}
std::cout << "Congratulations! You have reached impossible state #2" << std::endl << std::endl;
std::cout << "Reality is broken :)" << std::endl;
return IMPOSSIBLE;
matched_option->m_found = true;
return get_option_data(matched_option, option, next_value);
}
ERROR Parser::handle_positional_argument(const char* arg)
@ -218,6 +204,27 @@ ERROR Parser::get_option_data(Option* opt, const char* option_name, const char*
return NO_ERROR;
}
ERROR Parser::get_option_data(Option* opt, const char option_name, const char* data_str)
{
if (opt->m_type == FLAG)
return NO_ERROR;
if (data_str == nullptr || data_str[0] == '-')
return missing_argument(option_name);
if (opt->m_type == INT) {
int* val = new int;
if ((*val = stringToInt(data_str)) == -1)
return incorrect_type(opt->m_name, data_str);
opt->data = val;
} else {
opt->data = (void*) data_str;
}
m_opt_index++;
return NO_ERROR;
}
ERROR Parser::unknown_option(const char* option)
{
std::cout << m_program_name << ": invalid option '" << option << '\'' << std::endl << std::endl;
@ -248,6 +255,13 @@ ERROR Parser::missing_argument(const char* option)
return ERROR_MISSING_ARGUMENT;
}
ERROR Parser::missing_argument(const char option)
{
std::cout << m_program_name << ": Missing argument for option '" << option << '\'' << std::endl;
return ERROR_MISSING_ARGUMENT;
}
ERROR Parser::missing_positional_argument(const char* arg)
{
std::cout << m_program_name << ": Missing required positional argument '" << arg << "'" << std::endl << std::endl;