christianparpart

Terminal based Application cheat sheet

Naming convention

• ESC 0x1b - Introduces an escape sequence
• CSI 0x1B [- Control sequence introducer
• OSC 0x1B ] - Operating system command

Functions

christianparpart

Hyperlinks (a.k.a. HTML-like anchors) in terminal emulators

[ Update 2020-05-31: I won't be maintaining this page or responding to comments anymore. The list of supporting software reflects the known state as of this date. ]

---

Most of the terminal emulators auto-detect when a URL appears onscreen and allow to conveniently open them (e.g. via Ctrl+click or Cmd+click, or the right click menu).

It was, however, not possible until now for arbitrary text to point to URLs, just as on webpages.

christianparpart

#! /bin/bash

function ul_color1() {
    echo -ne "\033[58:2:255:250:32m"
}

function ul_color2() {
    echo -ne "\033[58:2:255:32:32m"
}

christianparpart

Solidity error type - a technical proposal

The Problem

In solidity there are currently two ways of generating and catching errors - by Error(string) or a raw bytes message.

This may not be enough and a more high level distinction would be nice by introducing custom error types the Solidity developer can create and use.

Motivation

christianparpart

#include <array>
#include <cstdio>
#include <type_traits>

template <typename T> struct remove_move { using type = T; };
template <typename T> struct remove_move<T&&> { using type = std::remove_reference_t<T>; };
template <typename T> using remove_move_t = typename remove_move<T>::type;

template <typename T>
auto f(T&& _value) {

christianparpart

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "name": "solc",
            "type": "cppdbg",
            "request": "launch",

christianparpart

#! /bin/bash

LINES=${LINES:-${1}}

echo -ne "\033[2J" # clear screen
echo -ne "\033[H"  # cursor to home

# fill lines with known pattern (numbers from 1 upwards)
for i in `seq 1 ${LINES}`; do
        echo -n "$i ..."

christianparpart

{
    "globals" : 
    {
        "alwaysShowTabs" : true,
        "defaultProfile" : "{2c4de342-38b7-51cf-b940-2309a097f519}",
        "initialCols" : 120,
        "initialRows" : 30,
        "keybindings" : 
        [
            {

christianparpart

#include <map>
#include <string>
#include <algorithm>
#include <iostream>
using namespace std;

int main(int argc, const char* argv[])
{
        // hint: ternary operator ? :
        string const text =

christianparpart

==27560== Memcheck, a memory error detector
==27560== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==27560== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==27560== Command: ./test/soltest --show_progress=yes -t SolidityEndToEndTest/abi_encode_with* -- --ipcpath /home/trapni/.ethereum/geth.ipc
==27560== 
==27560== error calling PR_SET_PTRACER, vgdb might block
Running 4 test cases...

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