diff options
| -rw-r--r-- | CMakeLists.txt | 16 | ||||
| -rw-r--r-- | repl.cc | 99 | ||||
| -rw-r--r-- | repl.d | 104 |
3 files changed, 104 insertions, 115 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt deleted file mode 100644 index 4deaa23..0000000 --- a/CMakeLists.txt +++ /dev/null @@ -1,16 +0,0 @@ -cmake_minimum_required(VERSION 2.8) -project(lang) - -set( - CMAKE_CXX_FLAGS - "${CMAKE_CXX_FLAGS} -std=c++14 -W -Wall -Wextra -Winline -pedantic" -) - -include_directories( - src/ -) - -add_executable( - repl - repl.cc -) diff --git a/repl.cc b/repl.cc deleted file mode 100644 index 31d8b07..0000000 --- a/repl.cc +++ /dev/null @@ -1,99 +0,0 @@ -#include <iostream> - -#include <stack> -#include <string> -#include <algorithm> - -#include <unordered_map> -#include <functional> - -#include <cctype> -#include <cstdlib> - -bool is_number(const std::string& token) { - return std::all_of( - token.begin(), - token.end(), - [](char c) { return std::isdigit(c); } - ); -} - -int main(int, char*[]) { - std::stack<int> stack; - std::string token; - - std::unordered_map<std::string, std::function<void(void)>> builtin{ - { - "+", [&stack]() { - const int b = stack.top(); - stack.pop(); - const int a = stack.top(); - stack.pop(); - - stack.push(a + b); - } - }, - { - "-", [&stack]() { - const int b = stack.top(); - stack.pop(); - const int a = stack.top(); - stack.pop(); - - stack.push(a - b); - } - }, - { - "*", [&stack]() { - const int b = stack.top(); - stack.pop(); - const int a = stack.top(); - stack.pop(); - - stack.push(a * b); - } - }, - { - ".", [&stack]() { - std::cout << stack.top() << std::endl; - } - }, - { - "swp", [&stack]() { - const int b = stack.top(); - stack.pop(); - const int a = stack.top(); - stack.pop(); - - stack.push(b); - stack.push(a); - } - }, - { - "dup", [&stack]() { - stack.push(stack.top()); - } - }, - { - "del", [&stack]() { - stack.pop(); - } - } - }; - - while ( std::cin.good() ) { - if ( std::cin >> token ) { - if ( is_number(token) ) { - stack.push(std::atoi(token.c_str())); - } else { - const auto& impl = builtin.find(token); - - if ( impl != builtin.end() ) { - impl->second(); - } - } - } - } - - return 0; -} @@ -0,0 +1,104 @@ +import std.stdio; +import std.string; +import std.conv; +import std.container : SList; +import std.container : DList; +import std.variant; + +alias Token = Algebraic!(int, string); + +auto dataStack = SList!int(); + +bool defMode = false; +string defModeWord = ""; + +DList!Token[string] wordMap; + +void push(ref DList!Token stack, int value) { + stack.insertBack(Token(value)); +} + +void push(ref DList!Token stack, string word) { + stack.insertBack(Token(word)); +} + +void push(ref DList!Token[string] map, int value) { + map[defModeWord].push(value); +} + +void push(ref DList!Token[string] map, string word) { + if ( defModeWord == "" ) { + defModeWord = word; + map[defModeWord] = DList!Token(); + } else { + map[defModeWord].push(word); + } +} + +void push(ref SList!int stack, int value) { + if ( defMode ) { + wordMap.push(value); + } else { + stack.insertFront(value); + } +} + +void push(ref SList!int stack, string word) { + if ( defMode ) { + if ( word == ";" ) { + defMode = false; + defModeWord = ""; + } else { + wordMap.push(word); + } + } else { + switch ( word ) { + case "ยง": + defMode = true; + defModeWord = ""; + break; + case "+": + auto a = stack.pop(); + auto b = stack.pop(); + + stack.push(a + b); + break; + case "*": + auto a = stack.pop(); + auto b = stack.pop(); + + stack.push(a * b); + break; + case ".": + writeln(stack.front); + break; + default: + foreach ( token; wordMap[word] ) { + if ( token.type == typeid(int) ) { + stack.push(*token.peek!int); + } else { + stack.push(*token.peek!string); + } + } + } + } +} + +int pop(ref SList!int stack) { + auto x = stack.front; + stack.removeFront; + + return x; +} + +void main() { + while ( !stdin.eof ) { + foreach ( word; stdin.readln.split ) { + if ( word.isNumeric ) { + dataStack.push(parse!int(word)); + } else { + dataStack.push(word); + } + } + } +} |