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@ -36,7 +36,7 @@ namespace ztl{
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ObjectType a=getValueOrLiteral(i);
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ObjectType b;
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if(i+1<tokens.size()&&tokens[i+1].type==TokenType::Operator){
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if(tokens[i+1].str=="+"){
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if(tokens[i+1].type==TokenType::Operator){
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if(i+2<tokens.size()){
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b=getValueOrLiteral(i+2);
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}else{
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@ -49,14 +49,29 @@ namespace ztl{
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return {a,1};
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}
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ObjectType res;
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if(std::holds_alternative<int64_t>(a) && tokens[i+1].str=="+" && std::holds_alternative<int64_t>(b)){
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res = std::get<int64_t>(a) + std::get<int64_t>(b);
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if(std::holds_alternative<int64_t>(a) && std::holds_alternative<int64_t>(b)){
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if(tokens[i+1].str=="+"){
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res = std::get<int64_t>(a) + std::get<int64_t>(b);
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}else if(tokens[i+1].str=="-"){
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res = std::get<int64_t>(a) - std::get<int64_t>(b);
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}
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else{
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throw std::runtime_error(std::format("unknown operator '{}' ",tokens[i+1].str));
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}
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}else{
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throw std::runtime_error(std::format("unknown operator '{}' or value type '{}' ,'{}'",tokens[i+1].str,tokens[i].str,tokens[i+2].str));
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throw std::runtime_error(std::format("unknown value type '{}' ,'{}'",tokens[i].str,tokens[i+2].str));
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}
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return {res,3};
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};
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for(size_t i=0;i<tokens.size();i++){
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const auto eat = [&i,&tokens](const std::string &s){
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if(i+1<tokens.size()&&tokens[i+1].str==s){
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i++;
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}else{
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throw std::runtime_error(std::format("cannot get '{}' after '{}'",s,tokens[i].str));
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}
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};
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if(tokens[i].type==TokenType::Keyword){
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if(tokens[i].str=="int"){
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if( i+2<tokens.size()
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@ -71,8 +86,8 @@ namespace ztl{
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}else{
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throw std::runtime_error(std::format("error when creatting int value '{}'",tokens[i].str));
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}
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}else if(tokens[i].str=="print"){
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}
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else if(tokens[i].str=="print"){
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if(i+1<tokens.size()&&tokens[i+1].str=="("){
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i++;
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}else{
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@ -93,14 +108,31 @@ namespace ztl{
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else{
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throw std::runtime_error(std::format("interpreter error Cannot find Keyword '{}'",tokens[i].str));
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}
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if(i+1<tokens.size()&&tokens[i+1].str==";"){
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i++;
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}else if(tokens[i].type==TokenType::Identifier){
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if( i+1<tokens.size()
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&& tokens[i+1].str=="="
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){
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std::string valueName = tokens[i].str;
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i+=1;
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auto res = getExprAns(i+1);
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if(auto it = objects.find(valueName);it!=objects.end()){
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if(it->second.index()!=res.first.index()){
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throw std::runtime_error(std::format("cannot give value to {}, because type is not same",valueName));
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}
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}else{
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throw std::runtime_error(std::format("error when getting int value named '{}'",valueName));
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}
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objects[valueName] = res.first;
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i+=res.second;
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}else{
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throw std::runtime_error(std::format("cannot get ';' after '{}'",tokens[i].str));
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throw std::runtime_error(std::format("error when creatting int value '{}'",tokens[i].str));
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}
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}else{
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}
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else{
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throw std::runtime_error(std::format("interpreter error at '{}'",tokens[i].str));
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}
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eat(";");
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}
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}
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}
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@ -14,7 +14,7 @@
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#include <vector>
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namespace ztl{
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namespace readFileToStrType{
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struct CannotOpenFile{};
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using ReturnType = std::variant<
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@ -97,7 +97,7 @@ namespace ztl{
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}
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else if(isspace(s[i])){
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continue;
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}else if(s[i]=='='||s[i]=='+'){
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}else if(s[i]=='='||s[i]=='+'||s[i]=='-'){
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tokens.emplace_back(TokenType::Operator,std::string()+s[i]);
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}else if(isdigit(s[i])){
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size_t begin = i;
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@ -23,6 +23,7 @@ namespace std{
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}
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}
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namespace ztl {
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inline bool isDebug = false;
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template<class ...Ts>
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struct overloaded : Ts... {using Ts::operator()...;};
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template<class ...Ts>
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@ -39,7 +40,7 @@ namespace ztl {
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}
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},ztl::readFileToStr(v));
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std::cout<<"Lexer() return vector:\n"<<lexer.tokens<<'\n';
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if(isDebug)std::cout<<"Lexer() return vector:\n"<<lexer.tokens<<'\n';;
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ztl::interpreter(lexer.tokens);
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}
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}
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21
src/main.cpp
21
src/main.cpp
@ -1,11 +1,30 @@
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#include "Tools.hpp"
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#include <iostream>
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#include <stdexcept>
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#include <string>
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#include <string_view>
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const std::string usageInfo = R"(Usage : ztl <filepath>
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-v to print the version
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-d to print the debug info
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)";
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void printUsage(){
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std::cout<<usageInfo<<'\n';
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}
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int main(int argc,char *argv[]){
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if(argc<2){
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throw std::runtime_error("Usage : ztl <filepath>");
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throw std::runtime_error(usageInfo);
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}
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for(int i=0;i<argc;i++){
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if(std::string(argv[i])=="-v"){
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std::cout<<"Tudor Lang version alpha 0.1 by Zengtudor\nhttps://gitcode.com/Zengtudor/TudorLang\n";
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}else if(std::string(argv[i])=="-h"){
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printUsage();
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}else if(std::string(argv[i])=="-d"){
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ztl::isDebug=true;
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}
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}
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ztl::runCodeFromPath(argv[1]);
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}
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@ -1,5 +1,6 @@
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int a =1 +100;
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int a = 1;
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print(a);
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int a = a+5;
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a=a+1;
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print(a);
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print(a+a);
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print(a-2);
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print(a);
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