67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
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#include "lang.h"
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int read_file(std::deque<std::string> args) {
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if (args.empty()) {
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std::cout << bg_red(bold("ERROR")) << ": No file input" << std::endl;
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return 1;
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}
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fs::path filename = args[0];
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args.pop_front();
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std::ifstream file(filename);
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if (!file) {
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std::cout << bg_red(bold("ERROR")) << ": Could not find file"
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<< std::endl;
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return 1;
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}
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std::string line;
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while (std::getline(file, line)) {
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std::cout << line << std::endl;
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}
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return 0;
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}
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int parse_line(std::string line) {
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struct parsed_token parsed {
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empty_token, empty_token
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};
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if (int sub = line.find("//"))
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line = line.substr(sub);
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std::deque<std::string> tokens;
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int start = 0;
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size_t end = line.find(" ");
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while (end != std::string::npos) {
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tokens.push_back(line.substr(start, end - start));
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start = end + 1;
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end = line.find(" ", start);
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}
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for (std::string& token : tokens) {
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try {
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Token curr_token = CV_Tokens.at(token);
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parsed.lastToken = parsed.currentToken;
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if (curr_token == parsed.lastToken &&
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curr_token.type == TokenType::SPACE)
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continue;
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else {
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// TODO: Line number handling for better errors
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std::cerr << "Invalid token `" << token << "'." << std::endl;
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return 1;
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}
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parsed.currentToken = curr_token;
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} catch (std::out_of_range& oor) {
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// this is most likely a variable or a string
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if (parsed.lastToken.type == TokenType::INTRINSIC &&
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parsed.lastToken.intrinsic == Intrinsic::LET) {
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VariableToken var{TokenType::VARIABLE, Intrinsic::EMPTY,
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Constant::EMPTY, "", token};
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parsed.currentToken = var;
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var_tokens.push_back(var);
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}
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// string parsing
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std::cerr << "Not implemented. Found `" << token << "'."
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<< std::endl;
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continue;
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}
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}
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return 0;
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}
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