Custom indent character for blank lines

[Roundlay]

Is it possible to use a custom character that only applies to blank lines? This was trivial to set with char_blankline in the previous version, but I'm not sure how to do the same in version 3.

E.g.:

┊
│    │    // line with stuff
│    ┊    // empty line
│    │    // line with stuff
┊

[lukas-reineke]

This feature was removed to simplify the logic, but you can use hooks to implement it yourself
This is a basic example

local hooks = require "ibl.hooks"
hooks.register(hooks.type.VIRTUAL_TEXT, function(_, bufnr, row, virt_text)
    local line = vim.api.nvim_buf_get_lines(bufnr, row, row + 1, false)[1]
    if line == "" then
        for _, v in ipairs(virt_text) do
            if v[1] == "│" then
                v[1] = "┊"
            end
        end
    end
    return virt_text
end)

[Roundlay]

Thanks for the help. I've tried to get this working a few different ways, calling setup without any custom options, etc., but still not seeing differing characters on blank lines. Here's my Lazy setup table. Am I registering hooks properly?

-- indent-blankline

return {
    'lukas-reineke/indent-blankline.nvim',
    -- name = "indent-blankline",
    main = "ibl", -- Required after v3.0.0
    enabled = true,
    lazy = true,
    event = {"BufReadPost", "BufNewFile"},
    opts = {
        indent = {
            char = "┃",
            smart_indent_cap = true,
            highlight = {
                "winter_blue",
            },
        },
        scope = {
            enabled = false
        },
        viewport_buffer = {
            min = 100,
            max = 600,
        },
    },
    config = function(_, opts)

        local hooks = require("ibl.hooks")

        hooks.register(
            hooks.type.HIGHLIGHT_SETUP, function()
                vim.api.nvim_set_hl(0, "winter_blue", { fg = "#252535" })
            end
        )

        hooks.register(
            hooks.type.VIRTUAL_TEXT, function(_, bufnr, row, virt_text)
                local line = vim.api.nvim_buf_get_lines(bufnr, row, row + 1, false)[1]
                if line == "" then
                    for _, v in ipairs(virt_text) do
                        if v[1] == "│" then
                            v[1] = "┊"
                        end
                    end
                end
                return virt_text
            end
        )

        local ibl_ok, ibl = pcall(require, "ibl")

        if not ibl_ok then
            print("Error loading 'indent-blankline'.")
            return
        end

        ibl.setup(opts)

    end
}

[lukas-reineke]

if v[1] == "│" then

this of course needs to match the character you use. In your first example, you had │, so that is what I put in the code. But now you use ┃

You could change the code to get the correct character from the config

hooks.register(hooks.type.VIRTUAL_TEXT, function(_, bufnr, row, virt_text)
    local config = require("ibl.config").get_config(bufnr)
    local line = vim.api.nvim_buf_get_lines(bufnr, row, row + 1, false)[1]
    if line == "" then
        for _, v in ipairs(virt_text) do
            if v[1] == config.indent.char then
                v[1] = "┊"
            end
        end
    end
    return virt_text
end)

[Roundlay]

God damn it, I'm so dumb 😑 Totally missed that. Thanks for the help!