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Make split into a prototype function on string

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Felix Albrigtsen 2022-12-05 12:35:28 +01:00
parent a7fd5b212a
commit 5e96c6a965
1 changed files with 9 additions and 7 deletions
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16
day05/solution.lua
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@ -27,9 +27,10 @@ function Stack:reverse()
return newStack return newStack
end end
function Split(s, delimiter) function string:split(delimiter)
delimiter = delimiter or " "
result = {}; result = {};
for match in (s..delimiter):gmatch("(.-)"..delimiter) do for match in (self..delimiter):gmatch("(.-)"..delimiter) do
table.insert(result, match); table.insert(result, match);
end end
return result; return result;
@ -71,9 +72,9 @@ end
inputLines = file:read("all") inputLines = file:read("all")
file:close() file:close()
parts = Split(inputLines, "\n\n") parts = inputLines:split("\n\n")
initialState = Split(parts[1], "\n") initialState = parts[1]:split("\n")
moves = Split(parts[2], "\n") moves = parts[2]:split("\n")
-- Initialize stacks -- Initialize stacks
stackCount = (#initialState[1] + 1) // 4 stackCount = (#initialState[1] + 1) // 4
@ -102,13 +103,14 @@ print("Initial state:")
for i = 1, stackCount do for i = 1, stackCount do
print("Stack "..i..": "..table.concat(stacks[i], " ")) print("Stack "..i..": "..table.concat(stacks[i], " "))
end end
print("")
-- Perform moves -- Perform moves
-- Part 1 -- Part 1
for i = 1, #moves do for i = 1, #moves do
move = Split(moves[i], " ") move = moves[i]:split()
count = tonumber(move[2]) count = tonumber(move[2])
from = tonumber(move[4]) from = tonumber(move[4])
to = tonumber(move[6]) to = tonumber(move[6])
@ -132,7 +134,7 @@ print("Part 1: "..part1)
-- Part 2 -- Part 2
for i = 1, #moves do for i = 1, #moves do
move = Split(moves[i], " ") move = moves[i]:split()
count = tonumber(move[2]) count = tonumber(move[2])
from = tonumber(move[4]) from = tonumber(move[4])
to = tonumber(move[6]) to = tonumber(move[6])