sub-search.lua

--[[
Usage:
    Press / or Ctrl + F, print something and press Enter.
Example:
    'You are playing Empire Strikes Back and press Ctrl+F, type "I am you father" + Enter
    and voilá, the scene pops up.'
Additional Keybidings:
           / - open or close search console
    Ctrl + , - find the previous occurrence
    Ctrl + . - find the next occurrence
More Information:
    The search is case insensitive and depends on the external .srt subtitles.
    Non-ASCII input won't work.
Console Settings:
    Update repl.lua default options below to increase the default font size. 
    For example, scale or font-size.
Script Status:
    Experimental.
Credits:
    James Ross-Gowan for repl.lua (https://github.com/rossy/mpv-repl).
    Its complete code with some minor changes had been included in this script.
--]] 

local auto_hide_console = true
local srt_file_extensions = {".srt", ".en.srt", ".eng.srt"}

------------- repl.lua -------------
-- repl.lua -- A graphical REPL for mpv input commands
--
-- © 2016, James Ross-Gowan
--
-- Permission to use, copy, modify, and/or distribute this software for any
-- purpose with or without fee is hereby granted, provided that the above
-- copyright notice and this permission notice appear in all copies.

local utils = require 'mp.utils'
local options = require 'mp.options'
local assdraw = require 'mp.assdraw'

-- Default options
local opts = {
    -- All drawing is scaled by this value, including the text borders and the
    -- cursor. Change it if you have a high-DPI display.
    scale = 1.5,
    -- Set the font used for the REPL and the console. This probably doesn't
    -- have to be a monospaced font.
    font = 'monospace',
    -- Set the font size used for the REPL and the console. This will be
    -- multiplied by "scale."
    ['font-size'] = 16,
}

function detect_platform()
    local o = {}
    -- Kind of a dumb way of detecting the platform but whatever
    if mp.get_property_native('options/vo-mmcss-profile', o) ~= o then
        return 'windows'
    elseif mp.get_property_native('options/input-app-events', o) ~= o then
        return 'macos'
    end
    return 'linux'
end

-- Pick a better default font for Windows and macOS
local platform = detect_platform()
if platform == 'windows' then
    opts.font = 'Consolas'
elseif platform == 'macos' then
    opts.font = 'Menlo'
end

-- Apply user-set options
options.read_options(opts)

-- Build a list of commands, properties and options for tab-completion
local option_info = {
    'name', 'type', 'set-from-commandline', 'set-locally', 'default-value',
    'min', 'max', 'choices',
}
local cmd_list = {
    'ignore', 'seek', 'revert-seek', 'quit', 'quit-watch-later', 'stop',
    'frame-step', 'frame-back-step', 'playlist-next', 'playlist-prev',
    'playlist-shuffle', 'sub-step', 'sub-seek', 'osd', 'print-text',
    'show-text', 'show-progress', 'sub-add', 'sub-remove', 'sub-reload',
    'tv-last-channel', 'screenshot', 'screenshot-to-file', 'screenshot-raw',
    'loadfile', 'loadlist', 'playlist-clear', 'playlist-remove',
    'playlist-move', 'run', 'set', 'add', 'cycle', 'multiply', 'cycle-values',
    'enable-section', 'disable-section', 'define-section', 'ab-loop',
    'drop-buffers', 'af', 'af-command', 'ao-reload', 'vf', 'vf-command',
    'script-binding', 'script-message', 'script-message-to', 'overlay-add',
    'overlay-remove', 'write-watch-later-config', 'hook-add', 'hook-ack',
    'mouse', 'keypress', 'keydown', 'keyup', 'audio-add', 'audio-remove',
    'audio-reload', 'rescan-external-file', 'apply-profile', 'load-script',
}
local prop_list = mp.get_property_native('property-list')
for _, opt in ipairs(mp.get_property_native('options')) do
    prop_list[#prop_list + 1] = 'options/' .. opt
    prop_list[#prop_list + 1] = 'file-local-options/' .. opt
    prop_list[#prop_list + 1] = 'option-info/' .. opt
    for _, p in ipairs(option_info) do
        prop_list[#prop_list + 1] = 'option-info/' .. opt .. '/' .. p
    end
end

local repl_active = false
local insert_mode = false
local line = ''
local cursor = 1
local history = {}
local history_pos = 1
local log_ring = {}

-- Add a line to the log buffer (which is limited to 100 lines)
function log_add(style, text)
    log_ring[#log_ring + 1] = { style = style, text = text }
    if #log_ring > 100 then
        table.remove(log_ring, 1)
    end
end

-- Escape a string for verbatim display on the OSD
function ass_escape(str)
    -- There is no escape for '\' in ASS (I think?) but '\' is used verbatim if
    -- it isn't followed by a recognised character, so add a zero-width
    -- non-breaking space
    str = str:gsub('\\', '\\\239\187\191')
    str = str:gsub('{', '\\{')
    str = str:gsub('}', '\\}')
    -- Precede newlines with a ZWNBSP to prevent ASS's weird collapsing of
    -- consecutive newlines
    str = str:gsub('\n', '\239\187\191\\N')
    return str
end

-- Render the REPL and console as an ASS OSD
function update()
    local screenx, screeny, aspect = mp.get_osd_size()
    screenx = screenx / opts.scale
    screeny = screeny / opts.scale

    -- Clear the OSD if the REPL is not active
    if not repl_active then
        mp.set_osd_ass(screenx, screeny, '')
        return
    end

    local ass = assdraw.ass_new()
    local style = '{\\r' ..
                   '\\1a&H00&\\3a&H00&\\4a&H99&' ..
                   '\\1c&Heeeeee&\\3c&H111111&\\4c&H000000&' ..
                   '\\fn' .. opts.font .. '\\fs' .. opts['font-size'] ..
                   '\\bord2\\xshad0\\yshad1\\fsp0\\q1}'
    -- Create the cursor glyph as an ASS drawing. ASS will draw the cursor
    -- inline with the surrounding text, but it sets the advance to the width
    -- of the drawing. So the cursor doesn't affect layout too much, make it as
    -- thin as possible and make it appear to be 1px wide by giving it 0.5px
    -- horizontal borders.
    local cheight = opts['font-size'] * 8
    local cglyph = '{\\r' ..
                    '\\1a&H44&\\3a&H44&\\4a&H99&' ..
                    '\\1c&Heeeeee&\\3c&Heeeeee&\\4c&H000000&' ..
                    '\\xbord0.5\\ybord0\\xshad0\\yshad1\\p4\\pbo24}' ..
                   'm 0 0 l 1 0 l 1 ' .. cheight .. ' l 0 ' .. cheight ..
                   '{\\p0}'
    local before_cur = ass_escape(line:sub(1, cursor - 1))
    local after_cur = ass_escape(line:sub(cursor))

    -- Render log messages as ASS. This will render at most screeny / font-size
    -- messages.
    local log_ass = ''
    local log_messages = #log_ring
    local log_max_lines = math.ceil(screeny / opts['font-size'])
    if log_max_lines < log_messages then
        log_messages = log_max_lines
    end
    for i = #log_ring - log_messages + 1, #log_ring do
        log_ass = log_ass .. style .. log_ring[i].style .. ass_escape(log_ring[i].text)
    end

    ass:new_event()
    ass:an(1)
    ass:pos(2, screeny - 2)
    ass:append(log_ass .. '\\N')
    ass:append(style .. '> ' .. before_cur)
    ass:append(cglyph)
    ass:append(style .. after_cur)

    -- Redraw the cursor with the REPL text invisible. This will make the
    -- cursor appear in front of the text.
    ass:new_event()
    ass:an(1)
    ass:pos(2, screeny - 2)
    ass:append(style .. '{\\alpha&HFF&}> ' .. before_cur)
    ass:append(cglyph)
    ass:append(style .. '{\\alpha&HFF&}' .. after_cur)

    mp.set_osd_ass(screenx, screeny, ass.text)
end

-- Set the REPL visibility (`, Esc)
function set_active(active)
    if active == repl_active then return end
    if active then
        repl_active = true
        insert_mode = false
        mp.enable_key_bindings('repl-input', 'allow-hide-cursor+allow-vo-dragging')
    else
        repl_active = false
        mp.disable_key_bindings('repl-input')
    end
    update()
end

-- Show the repl if hidden and replace its contents with 'text'
-- (script-message-to repl type)
function show_and_type(text)
    text = text or ''

    -- Save the line currently being edited, just in case
    if line ~= text and line ~= '' and history[#history] ~= line then
        history[#history + 1] = line
    end

    line = text
    cursor = line:len() + 1
    history_pos = #history + 1
    insert_mode = false
    if repl_active then
        update()
    else
        set_active(true)
    end
end

-- Naive helper function to find the next UTF-8 character in 'str' after 'pos'
-- by skipping continuation bytes. Assumes 'str' contains valid UTF-8.
function next_utf8(str, pos)
    if pos > str:len() then return pos end
    repeat
        pos = pos + 1
    until pos > str:len() or str:byte(pos) < 0x80 or str:byte(pos) > 0xbf
    return pos
end

-- As above, but finds the previous UTF-8 charcter in 'str' before 'pos'
function prev_utf8(str, pos)
    if pos <= 1 then return pos end
    repeat
        pos = pos - 1
    until pos <= 1 or str:byte(pos) < 0x80 or str:byte(pos) > 0xbf
    return pos
end

-- Insert a character at the current cursor position (' '-'~', Shift+Enter)
function handle_char_input(c)
    if insert_mode then
        line = line:sub(1, cursor - 1) .. c .. line:sub(next_utf8(line, cursor))
    else
        line = line:sub(1, cursor - 1) .. c .. line:sub(cursor)
    end
    cursor = cursor + 1
    update()
end

-- Remove the character behind the cursor (Backspace)
function handle_backspace()
    if cursor <= 1 then return end
    local prev = prev_utf8(line, cursor)
    line = line:sub(1, prev - 1) .. line:sub(cursor)
    cursor = prev
    update()
end

-- Remove the character in front of the cursor (Del)
function handle_del()
    if cursor > line:len() then return end
    line = line:sub(1, cursor - 1) .. line:sub(next_utf8(line, cursor))
    update()
end

-- Toggle insert mode (Ins)
function handle_ins()
    insert_mode = not insert_mode
end

-- Move the cursor to the next character (Right)
function next_char(amount)
    cursor = next_utf8(line, cursor)
    update()
end

-- Move the cursor to the previous character (Left)
function prev_char(amount)
    cursor = prev_utf8(line, cursor)
    update()
end

-- Clear the current line (Ctrl+C)
function clear()
    line = ''
    cursor = 1
    insert_mode = false
    history_pos = #history + 1
    update()
end

-- Close the REPL if the current line is empty, otherwise do nothing (Ctrl+D)
function maybe_exit()
    if line == '' then
        set_active(false)
    end
end

-- Run the current command and clear the line (Enter)
function handle_enter()
    if line == '' then
        return
    end
    if history[#history] ~= line then
        history[#history + 1] = line
    end

    clear_log_buffer()
    search(line)
    clear()
    if auto_hide_console then
        set_active(false)
    end
end

-- Go to the specified position in the command history
function go_history(new_pos)
    local old_pos = history_pos
    history_pos = new_pos

    -- Restrict the position to a legal value
    if history_pos > #history + 1 then
        history_pos = #history + 1
    elseif history_pos < 1 then
        history_pos = 1
    end

    -- Do nothing if the history position didn't actually change
    if history_pos == old_pos then
        return
    end

    -- If the user was editing a non-history line, save it as the last history
    -- entry. This makes it much less frustrating to accidentally hit Up/Down
    -- while editing a line.
    if old_pos == #history + 1 and line ~= '' and history[#history] ~= line then
        history[#history + 1] = line
    end

    -- Now show the history line (or a blank line for #history + 1)
    if history_pos <= #history then
        line = history[history_pos]
    else
        line = ''
    end
    cursor = line:len() + 1
    insert_mode = false
    update()
end

-- Go to the specified relative position in the command history (Up, Down)
function move_history(amount)
    go_history(history_pos + amount)
end

-- Go to the first command in the command history (PgUp)
function handle_pgup()
    go_history(1)
end

-- Stop browsing history and start editing a blank line (PgDown)
function handle_pgdown()
    go_history(#history + 1)
end

-- Move to the start of the current word, or if already at the start, the start
-- of the previous word. (Ctrl+Left)
function prev_word()
    -- This is basically the same as next_word() but backwards, so reverse the
    -- string in order to do a "backwards" find. This wouldn't be as annoying
    -- to do if Lua didn't insist on 1-based indexing.
    cursor = line:len() - select(2, line:reverse():find('%s*[^%s]*', line:len() - cursor + 2)) + 1
    update()
end

-- Move to the end of the current word, or if already at the end, the end of
-- the next word. (Ctrl+Right)
function next_word()
    cursor = select(2, line:find('%s*[^%s]*', cursor)) + 1
    update()
end

-- List of tab-completions:
--   pattern: A Lua pattern used in string:find. Should return the start and
--            end positions of the word to be completed in the first and second
--            capture groups (using the empty parenthesis notation "()")
--   list: A list of candidate completion values.
--   append: An extra string to be appended to the end of a successful
--           completion. It is only appended if 'list' contains exactly one
--           match.
local completers = {
    { pattern = '^%s*()[%w_-]+()$', list = cmd_list, append = ' ' },
    { pattern = '^%s*set%s+()[%w_/-]+()$', list = prop_list, append = ' ' },
    { pattern = '^%s*set%s+"()[%w_/-]+()$', list = prop_list, append = '" ' },
    { pattern = '^%s*add%s+()[%w_/-]+()$', list = prop_list, append = ' ' },
    { pattern = '^%s*add%s+"()[%w_/-]+()$', list = prop_list, append = '" ' },
    { pattern = '^%s*cycle%s+()[%w_/-]+()$', list = prop_list, append = ' ' },
    { pattern = '^%s*cycle%s+"()[%w_/-]+()$', list = prop_list, append = '" ' },
    { pattern = '^%s*multiply%s+()[%w_/-]+()$', list = prop_list, append = ' ' },
    { pattern = '^%s*multiply%s+"()[%w_/-]+()$', list = prop_list, append = '" ' },
    { pattern = '${()[%w_/-]+()$', list = prop_list, append = '}' },
}

-- Use 'list' to find possible tab-completions for 'part.' Returns the longest
-- common prefix of all the matching list items and a flag that indicates
-- whether the match was unique or not.
function complete_match(part, list)
    local completion = nil
    local full_match = false

    for _, candidate in ipairs(list) do
        if candidate:sub(1, part:len()) == part then
            if completion and completion ~= candidate then
                local prefix_len = part:len()
                while completion:sub(1, prefix_len + 1)
                       == candidate:sub(1, prefix_len + 1) do
                    prefix_len = prefix_len + 1
                end
                completion = candidate:sub(1, prefix_len)
                full_match = false
            else
                completion = candidate
                full_match = true
            end
        end
    end

    return completion, full_match
end

-- Complete the option or property at the cursor (TAB)
function complete()
    local before_cur = line:sub(1, cursor - 1)
    local after_cur = line:sub(cursor)

    -- Try the first completer that works
    for _, completer in ipairs(completers) do
        -- Completer patterns should return the start and end of the word to be
        -- completed as the first and second capture groups
        local _, _, s, e = before_cur:find(completer.pattern)
        if not s then
            -- Multiple input commands can be separated by semicolons, so all
            -- completions that are anchored at the start of the string with
            -- '^' can start from a semicolon as well. Replace ^ with ; and try
            -- to match again.
            _, _, s, e = before_cur:find(completer.pattern:gsub('^^', ';'))
        end
        if s then
            -- If the completer's pattern found a word, check the completer's
            -- list for possible completions
            local part = before_cur:sub(s, e)
            local c, full = complete_match(part, completer.list)
            if c then
                -- If there was only one full match from the list, add
                -- completer.append to the final string. This is normally a
                -- space or a quotation mark followed by a space.
                if full and completer.append then
                    c = c .. completer.append
                end

                -- Insert the completion and update
                before_cur = before_cur:sub(1, s - 1) .. c
                cursor = before_cur:len() + 1
                line = before_cur .. after_cur
                update()
                return
            end
        end
    end
end

-- Move the cursor to the beginning of the line (HOME)
function go_home()
    cursor = 1
    update()
end

-- Move the cursor to the end of the line (END)
function go_end()
    cursor = line:len() + 1
    update()
end

-- Delete from the cursor to the end of the word (Ctrl+W)
function del_word()
    local before_cur = line:sub(1, cursor - 1)
    local after_cur = line:sub(cursor)

    before_cur = before_cur:gsub('[^%s]+%s*$', '', 1)
    line = before_cur .. after_cur
    cursor = before_cur:len() + 1
    update()
end

-- Delete from the cursor to the end of the line (Ctrl+K)
function del_to_eol()
    line = line:sub(1, cursor - 1)
    update()
end

-- Delete from the cursor back to the start of the line (Ctrl+U)
function del_to_start()
    line = line:sub(cursor)
    cursor = 1
    update()
end

-- Empty the log buffer of all messages (Ctrl+L)
function clear_log_buffer()
    log_ring = {}
    update()
end

-- Returns a string of UTF-8 text from the clipboard (or the primary selection)
function get_clipboard(clip)
    if platform == 'linux' then
        local res = utils.subprocess({ args = {
            'xclip', '-selection', clip and 'clipboard' or 'primary', '-out'
        } })
        if not res.error then
            return res.stdout
        end
    elseif platform == 'windows' then
        local res = utils.subprocess({ args = {
            'powershell', '-NoProfile', '-Command', [[& {
                Trap {
                    Write-Error -ErrorRecord $_
                    Exit 1
                }

                $clip = ""
                if (Get-Command "Get-Clipboard" -errorAction SilentlyContinue) {
                    $clip = Get-Clipboard -Raw -Format Text -TextFormatType UnicodeText
                } else {
                    Add-Type -AssemblyName PresentationCore
                    $clip = [Windows.Clipboard]::GetText()
                }

                $clip = $clip -Replace "`r",""
                $u8clip = [System.Text.Encoding]::UTF8.GetBytes($clip)
                [Console]::OpenStandardOutput().Write($u8clip, 0, $u8clip.Length)
            }]]
        } })
        if not res.error then
            return res.stdout
        end
    elseif platform == 'macos' then
        local res = utils.subprocess({ args = { 'pbpaste' } })
        if not res.error then
            return res.stdout
        end
    end
    return ''
end

-- Paste text from the window-system's clipboard. 'clip' determines whether the
-- clipboard or the primary selection buffer is used (on X11 only.)
function paste(clip)
    local text = get_clipboard(clip)
    local before_cur = line:sub(1, cursor - 1)
    local after_cur = line:sub(cursor)
    line = before_cur .. text .. after_cur
    cursor = cursor + text:len()
    update()
end

-- The REPL has pretty specific requirements for key bindings that aren't
-- really satisified by any of mpv's helper methods, since they must be in
-- their own input section, but they must also raise events on key-repeat.
-- Hence, this function manually creates an input section and puts a list of
-- bindings in it.
function add_repl_bindings(bindings)
    local cfg = ''
    for i, binding in ipairs(bindings) do
        local key = binding[1]
        local fn = binding[2]
        local name = '__repl_binding_' .. i
        mp.add_key_binding(nil, name, fn, 'repeatable')
        cfg = cfg .. key .. ' script-binding ' .. mp.script_name .. '/' ..
              name .. '\n'
    end
    mp.commandv('define-section', 'repl-input', cfg, 'force')
end

-- Mapping from characters to mpv key names
local binding_name_map = {
    [' '] = 'SPACE',
    ['#'] = 'SHARP',
}

-- List of input bindings. This is a weird mashup between common GUI text-input
-- bindings and readline bindings.
local bindings = {
    { 'esc',         function() set_active(false) end       },
    { 'enter',       handle_enter                           },
    { 'shift+enter', function() handle_char_input('\n') end },
    { 'bs',          handle_backspace                       },
    { 'shift+bs',    handle_backspace                       },
    { 'del',         handle_del                             },
    { 'shift+del',   handle_del                             },
    { 'ins',         handle_ins                             },
    { 'shift+ins',   function() paste(false) end            },
    { 'mouse_btn1',  function() paste(false) end            },
    { 'left',        function() prev_char() end             },
    { 'right',       function() next_char() end             },
    { 'up',          function() move_history(-1) end        },
    { 'axis_up',     function() move_history(-1) end        },
    { 'mouse_btn3',  function() move_history(-1) end        },
    { 'down',        function() move_history(1) end         },
    { 'axis_down',   function() move_history(1) end         },
    { 'mouse_btn4',  function() move_history(1) end         },
    { 'axis_left',   function() end                         },
    { 'axis_right',  function() end                         },
    { 'ctrl+left',   prev_word                              },
    { 'ctrl+right',  next_word                              },
    { 'tab',         complete                               },
    { 'home',        go_home                                },
    { 'end',         go_end                                 },
    { 'pgup',        handle_pgup                            },
    { 'pgdwn',       handle_pgdown                          },
    { 'ctrl+c',      clear                                  },
    { 'ctrl+d',      maybe_exit                             },
    { 'ctrl+k',      del_to_eol                             },
    { 'ctrl+l',      clear_log_buffer                       },
    { 'ctrl+u',      del_to_start                           },
    { 'ctrl+v',      function() paste(true) end             },
    { 'meta+v',      function() paste(true) end             },
    { 'ctrl+w',      del_word                               },
}
-- Add bindings for all the printable US-ASCII characters from ' ' to '~'
-- inclusive. Note, this is a pretty hacky way to do text input. mpv's input
-- system was designed for single-key key bindings rather than text input, so
-- things like dead-keys and non-ASCII input won't work. This is probably okay
-- though, since all mpv's commands and properties can be represented in ASCII.
for b = (' '):byte(), ('~'):byte() do
    local c = string.char(b)
    local binding = binding_name_map[c] or c
    if c ~= '/' then
        bindings[#bindings + 1] = {binding, function() handle_char_input(c) end}
    end
end
add_repl_bindings(bindings)

-- Add a global binding for enabling the REPL. While it's enabled, its bindings
-- will take over and it can be closed with ESC.
mp.add_key_binding('ctrl+f', 'repl-enable', function()
    clear_log_buffer()
    set_active(true)
end)

-- Add a script-message to show the REPL and fill it with the provided text
mp.register_script_message('type', function(text)
    show_and_type(text)
end)

-- Redraw the REPL when the OSD size changes. This is needed because the
-- PlayRes of the OSD will need to be adjusted.
mp.observe_property('osd-width', 'native', update)
mp.observe_property('osd-height', 'native', update)

-- Watch for log-messages and print them in the REPL console
mp.enable_messages('info')
mp.register_event('log-message', function(e)
    -- Ignore log messages from the OSD because of paranoia, since writing them
    -- to the OSD could generate more messages in an infinite loop.
    if e.prefix:sub(1, 3) == 'osd' then return end

    -- Use color for warn/error/fatal messages. Colors are stolen from base16
    -- Eighties by Chris Kempson.
    local style = ''
    if e.level == 'warn' then
        style = '{\\1c&H66ccff&}'
    elseif e.level == 'error' then
        style = '{\\1c&H7a77f2&}'
    elseif e.level == 'fatal' then
        style = '{\\1c&H5791f9&\\b1}'
    end

    log_add(style, '[' .. e.prefix .. '] ' .. e.text)
    update()
end)
------------- repl.lua -------------

function srt_time_to_seconds(time)
    major, minor = time:match("(%d%d:%d%d:%d%d),(%d%d%d)")
    hours, mins, secs = major:match("(%d%d):(%d%d):(%d%d)")
    return hours * 3600 + mins * 60 + secs + minor / 1000
end

function open_subtitles_file()
    local video_path = mp.get_property("path")
    local srt_filename = video_path:gsub('\\','/'):match("^(.+)/.+$") .. "/" .. mp.get_property("filename/no-ext")
    
    for i, ext in ipairs(srt_file_extensions) do
        local f, err = io.open(srt_filename .. ext, "r")
        
        if f then
            return f
        end
    end

    return false
end

function load_subtitles_file()
    local f = open_subtitles_file()

    if not f then
        return false
    end

    data = f:read("*all")
    data = string.gsub(data, "\r\n", "\n")
    data = string.gsub(data, "\n\n", "\0")
    data = string.gsub(data, "\n", " ")
    data = string.gsub(data, "<b>", "")
    data = string.gsub(data, "</b>", "")
    data = string.gsub(data, "<i>", "")
    data = string.gsub(data, "</i>", "")
    data = string.gsub(data, "<u>", "")
    data = string.gsub(data, "</u>", "")
    f:close()

    return true
end

-- https://www.lua.org/pil/20.4.html
function nocase(s)
    s = string.gsub(s, "%a", function (c)
        return string.format("[%s%s]", string.lower(c), string.upper(c))
      end)
    return s
end
-- ---------------------------------

function search(phrase, step)
    if data == nil then
        local ret = load_subtitles_file()
        if ret ~= true then
            mp.osd_message("Can't find external subtitles")
            return
        end
    end

    local time_pos = mp.get_property_number("time-pos")
    if prev_phrase ~= nil and prev_phrase == phrase then
        if step == nil then
            search_idx = (search_idx % #search_results) + 1
        else
            search_idx = search_idx - 1
            if search_idx == 0 then
                search_idx = #search_results
            end
        end
    else
        idx = 0
        search_idx = 0
        search_results = {}
        prev_phrase = phrase
        for start_time, end_time, text in string.gmatch(data, "(%d%d:%d%d:%d%d,%d%d%d) %-%-> (%d%d:%d%d:%d%d,%d%d%d) ([^%z]-" .. nocase(phrase) .. "[^%z]-)") do
            idx = idx + 1
            
            start_time = srt_time_to_seconds(start_time)            
            if start_time >= time_pos and search_idx == 0 then
                search_idx = idx
            end

            table.insert(search_results, start_time)
        end

        if search_idx == 0 then
            search_idx = 1
        end
    end

    if #search_results ~= 0 then
        mp.commandv("seek", search_results[search_idx], "absolute+exact")
        
        local search_results_message = string.format("%s [%s/%s]", phrase, search_idx, #search_results)
        if auto_hide_console == false then
            print(search_results_message)
        else
            mp.osd_message(search_results_message)
        end
    else
        local search_results_message = string.format("'%s' is not found", phrase)
        if auto_hide_console == false then
            print(search_results_message)
        else
            mp.osd_message(search_results_message)
        end
    end
end

mp.add_key_binding('/', 'search-enable', function()
    clear_log_buffer()
    if repl_active == false then
        set_active(true)
    else
        set_active(false)
    end
end)

mp.add_key_binding('ctrl+.', 'search-next', function()
    clear_log_buffer()
    search(prev_phrase)
end)

mp.add_key_binding('ctrl+,', 'search-prev', function()
    clear_log_buffer()
    search(prev_phrase, -1)
end)