74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
#pragma once
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#include "cmd/args/arg.hpp"
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#include "cmd/args/arg_generic.hpp"
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#include "cmd/args/arg_input.hpp"
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#include "cmd/args/arg_manager.hpp"
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#include "cmd/cmd_base.hpp"
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#include "util/input.hpp"
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#include "util/stringliteral.hpp"
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#include <algorithm>
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#include <iostream>
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#include <memory>
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#include <stdexcept>
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#include <string>
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namespace fsh {
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class CmdTr : public Command {
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public:
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virtual void execute(FlagNode flag, ArgNodes& vec, std::istream& in, std::ostream& out) override {
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ArgFactory af;
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switch (vec.size()) {
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case 2:
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af.add_rule<StringLiteral>(1);
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case 1:
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af.add_rule<StringLiteral>(1);
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break;
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default:
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af.add_input_rule();
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af.add_rule<StringLiteral>(1);
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af.add_rule<StringLiteral>(1);
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break;
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}
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Command::execute(flag, vec, in,out, af);
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}
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protected:
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std::string replace_all(std::string str,const std::string &what,const std::string &with) {
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if(what == "") throw std::runtime_error("\"\" cannot be used as what");
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unsigned long long pos = str.find(what);
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while(pos != std::string::npos) {
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str.replace(pos,what.size(),with) ;
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pos = str.find(what,pos+with.size());
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}
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return str;
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}
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virtual void run(std::istream& in, std::ostream& out, ArgManager& args) override {
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std::string s;
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std::string o;
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std::string what = "";
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std::string with = "";
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while (std::getline(in, s)) { o += s + "\n"; }
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switch (args.size()) {
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case 2:
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with = args.get<StringLiteral>(1).value();
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case 1:
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what = args.get<StringLiteral>(0).value();
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break;
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case 3:
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what = args.get<StringLiteral>(1).value();
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with = args.get<StringLiteral>(2).value();
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}
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out << replace_all(o,what,with);
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}
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};
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} |