diff options
Diffstat (limited to 'src/commands.cpp')
| -rw-r--r-- | src/commands.cpp | 335 |
1 files changed, 0 insertions, 335 deletions
diff --git a/src/commands.cpp b/src/commands.cpp deleted file mode 100644 index 5688da4..0000000 --- a/src/commands.cpp +++ /dev/null @@ -1,335 +0,0 @@ -#include "commands.h" -#include "error.h" -#include "util.h" - -#include <cctype> -#include <iostream> -#include <algorithm> -#include <iterator> -#include <stdexcept> -#include <string> -#include <utility> -#include <vector> -#include <regex> -#include <cstring> - -using std::cout, std::endl, std::string, std::vector; - -const void CommandsModule::echo(const CommandArg* argv) -{ - cout << argv[0].str << endl; -} - -CommandsModule::CommandsModule() -{ - addCommand("echo", &CommandsModule::echo, 1, {STR_REST}, this); -} -CommandsModule::~CommandsModule() -{ - for(Command c : commandList) - { - if(c.argc > 0) - delete[] c.argTypes; - } -} - -void CommandsModule::addCommand(Command c) -{ - if(lookupCommand(c.name) != nullptr) - { - cout << "Duplicate command: " << c.name << endl; - } - commandList.push_back(c); -} -void CommandsModule::addCommand(std::string name, const void (*func)(const CommandArg *), const int argc, CommandArgType *argTypes) -{ - Command c = {name, nullptr, func, argc, argTypes, nullptr}; - addCommand(c); -} -void CommandsModule::addCommand(std::string name, const void(*func)(const CommandArg*), const int argc, std::vector<CommandArgType> argTypes) -{ - CommandArgType* argTypesArr = new CommandArgType[argc]; - for(int i = 0; i < argc; i++) - { - argTypesArr[i] = argTypes[i]; - } - addCommand(name, func, argc, argTypesArr); -} - -struct NameMatches -{ - NameMatches(string s): s_{s} {} - bool operator()(Command c) { return (c.name == s_); } - string s_; -}; - -Command* CommandsModule::lookupCommand(string name) -{ - auto elem = std::find_if(commandList.begin(), commandList.end(), NameMatches(name)); - if (elem != commandList.end()) - { - int i = elem - commandList.begin(); - return &(commandList[i]); - } - else - { - return nullptr; - } -} - -vector<string> CommandsModule::splitCommand(string command) -{ - vector<string> v; - string arg = ""; - bool inQuotes = false; - bool escapeNext = true; - char quoteType; - for(int i = 0; i < command.size(); i++) - { - if(escapeNext) - { - arg += command[i]; - escapeNext = false; - } - else if(command[i] == '\\') - { - escapeNext = true; - } - else if(inQuotes) - { - if(command[i] == quoteType) - { - if(arg != "") - { - v.push_back(arg); - arg = ""; - } - inQuotes = false; - } - else - { - arg += command[i]; - } - } - else - { - if(command[i] == ' ') - { - if(arg != "") - { - v.push_back(arg); - arg = ""; - } - } - else if(command[i] == '"' || command[i] == '\'') - { - inQuotes = true; - quoteType = command[i]; - } - else - { - arg += command[i]; - } - } - } - if(arg != "") - v.push_back(arg); - return v; -} - -CommandArg* CommandsModule::getCommandArgs(vector<string>& split, const CommandArgType* argTypes, const int argc) -{ - CommandArg* args = new CommandArg[argc]; - for(int i = 1; i < argc + 1; i++) - { - switch(argTypes[i-1]) - { - case STR: args[i-1].str = (char*)split[i].c_str(); break; - case NUM: - { - try - { - args[i-1].num = std::stoi(split[i]); - break; - } - catch(std::invalid_argument e) - { - delete[] args; - throw Err(CMD_ERR_WRONG_ARGS, split[i] + " is not a number!"); - } - } - case MOVDIR: - { - if(lowercase(split[i]) == "up") - args[i-1].dir = UP; - else if(lowercase(split[i]) == "down") - args[i-1].dir = DOWN; - else if(lowercase(split[i]) == "left") - args[i-1].dir = LEFT; - else if(lowercase(split[i]) == "right") - args[i-1].dir = RIGHT; - else - { - delete[] args; - throw Err(CMD_ERR_WRONG_ARGS, split[i] + " is not a direction!"); - } - break; - } - case STR_REST: - { - string rest = ""; - for(int j = i; j < split.size(); j++) - { - rest += split[j]; - if(j != split.size() - 1) - rest += " "; - } - args[i-1].str = new char[rest.size()]; - strncpy(args[i-1].str, rest.c_str(), rest.size()); - return args; - } - case NUM_ARR_REST: - { - int* rest = new int[split.size() - i]; - for(int j = 0; j < split.size() - i; j++) - { - try - { - rest[j] = std::stoi(split[j + i]); - } - catch(std::invalid_argument e) - { - delete[] rest; - delete[] args; - throw Err(CMD_ERR_WRONG_ARGS, split[i] + " is not a number!"); - } - } - args[i-1].numArr = {rest, (int) split.size() - i}; - return args; - } - default: cout << "UH OH SOMETHING IS VERY WRONG" << endl; - } - } - return args; -} - -void CommandsModule::runCommand(string command) -{ - vector<string> split = splitCommand(command); - vector<string>::const_iterator start = split.begin(); - int count = 0; - for(string s : split) - { - if(s == ";") - { - vector<string>::const_iterator end = start + count; - vector<string> partialCmd(start, end); - runCommand(partialCmd); - count = 0; - start = end + 1; - } - else - { - count++; - } - } - if(start != split.end()) - { - vector<string> partialCmd(start, (vector<string>::const_iterator)split.end()); - runCommand(partialCmd); - } -} -void CommandsModule::runCommand(vector<string> split) -{ - Command* cmd = lookupCommand(split[0]); - if(cmd == nullptr) - throw Err(CMD_ERR_NOT_FOUND, split[0] + " is not a valid command name"); - if(cmd->argc > split.size() - 1) - throw Err(CMD_ERR_WRONG_ARGS, "wrong number of arguments"); - CommandArg* args; - try - { - args = getCommandArgs(split, cmd->argTypes, cmd->argc); - } - catch(Err e) - { - throw e; - } - try - { - if(cmd->module == nullptr) - cmd->staticFunc(args); - else - cmd->func(*cmd->module, args); - } - catch (Err e) - { - for(int i = 0; i < cmd->argc; i++) - { - if(cmd->argTypes[i] == STR_REST) - delete[] args[i].str; - } - delete[] args; - throw e; - } - for(int i = 0; i < cmd->argc; i++) - { - if(cmd->argTypes[i] == STR_REST) - delete[] args[i].str; - } - delete[] args; -} - -vector<Err> CommandsModule::checkCommand(string command) -{ - vector<Err> errs; - vector<string> split = splitCommand(command); - vector<string>::const_iterator start = split.begin(); - int count = 0; - for(string s : split) - { - if(s == ";") - { - vector<string>::const_iterator end = start + count; - vector<string> partialCmd(start, end); - errs.push_back(checkCommand(partialCmd)); - count = 0; - start = end + 1; - } - else - { - count++; - } - } - if(start != split.end()) - { - vector<string> partialCmd(start, (vector<string>::const_iterator)split.end()); - errs.push_back(checkCommand(partialCmd)); - } - return errs; -} - -Err CommandsModule::checkCommand(vector<string> split) -{ - Command* cmd = lookupCommand(split[0]); - if(cmd == nullptr) - return Err(CMD_ERR_NOT_FOUND, split[0] + " is not a valid command name"); - if(cmd->argc > split.size()) - return Err(CMD_ERR_WRONG_ARGS, "wrong number of arguments"); - CommandArg* args; - try - { - args = getCommandArgs(split, cmd->argTypes, cmd->argc); - } - catch(Err e) - { - return e; - } - for(int i = 0; i < cmd->argc; i++) - { - if(cmd->argTypes[i] == STR_REST || cmd->argTypes[i] == NUM_ARR_REST) - delete[] args[i].str; - } - delete[] args; - return Err(NOERR, ""); -} |
