src/addcards.lua (ae90e2a) - memoire

addcards.lua

--[[
    returns a not-necessarily-meaningful number
    iff `s` has mismatched curly-brackets
]]
local function mismatched(s)
    return ("}" .. s):find("}[^{]+}") or (s .. "{"):find("{[^}]+{")
end

--[[
    returns a Card with note = s, ct autodetected,
    ease = ease
]]
local function parsenote(s, ease)
    local c = Card:new({ note = s, ct = "pwc", created = os.time() })
    local segs = {}
    local n = s:find(";;")
    while n do
        local p = s:find(";;", n + 2)
        local ns = s:sub(n, p)
        table.insert(segs, ns)
        n = p
    end
    for i, ns in ipairs(segs) do
        if ns:match("{[^}]+}") then
            for j = 1, #segs do
                if i ~= j then
                    table.insert(c.pr, Prompt:new({ card = c, ease = ease }))
                end
            end
        end
    end
    if #c.pr >= 1 then
        return c
    end
    c = Card:new({ note = s, ct = "bmc", created = os.time() })
    for _re in s:gmatch("{[^}]+}") do
        table.insert(c.pr, Prompt:new({ card = c, ease = ease }))
    end
    if #c.pr >= 1 then
        return c
    end
    c = Card:new({ note = s, ct = "seq", created = os.time() })
    for _re in s:gmatch(";;") do
        table.insert(c.pr, Prompt:new({ card = c, ease = ease }))
    end
    if #c.pr >= 1 then
        return c
    end
end

local function fn(config, deck)
    if isatty() then
        io.write("Reading prompts; press Ctrl-D to stop\n")
    end
    local readtext = io.read("a")
    local cardctr = 0
    local prctr = 0
    for notetext in readtext:gmatch("(..-)\n\n") do
        if mismatched(notetext) then
            io.write(string.format("Card %d (\"%s\") contains mismatched braces\n", #deck + 1, notetext))
        end
        local newcard = parsenote(notetext, config:get("StartingEase"))
        if newcard then
            table.insert(deck, newcard)
            cardctr = cardctr + 1
            prctr = prctr + #newcard.pr
        else
            io.write(string.format("Card \"%s\" contains no answers (check braces/double-semicolons)\n", notetext))
        end
    end
    io.write(string.format(
        "Added %d cards (%d prompts)\n",
        cardctr,
        prctr
    ))
    if cardctr > 0 then
        return deck
    end
end

return { desc = "(a)dd card (from stdin)", nd = true, fn = fn }

memoire

Add "pwc" card type