if (!inscriptcond && str[0] == ':')
        {
            // The init file is now forced into isconditional mode.
            isconditional = true;
            str = str.substr(1);
            if (!str.empty() && runscript)
            {
                // If we're in the middle of an option block, close it.
                if (luacond.length() && l_init)
                {
                    luacond += "]] )\n";
                    l_init = false;
                }
                luacond += str + "\n";
            }
            continue;
        }

            if (!str.empty() && str[ str.length() - 1 ] == '>') {

            if (!str.empty() && str[ str.length() - 1 ] == '>')
            {

7-  Inline Lua.

Lua files are scripts which can provide existing commands with a new meaning
or even create new commands (to be used in macros). If you don't know a 
specific reason not to include some or all lua files, you'll do best to just 
include them all.

Lua files are scripts which can provide existing commands with a new
meaning or create new commands (to be used in macros). To use Lua
files, Crawl needs to be compiled with support for user Lua scripts.
You can if your Crawl has Lua support by hitting V in-game. The list
of features Crawl displays should include "Lua user scripts".
Lua files are included using the lua_file option (one file per line):

The currently available lua's are
  base.lua      -- needed for other lua scripts

The available stock Lua scripts are

  pickup.lua    -- smarter autopickup.

Also see section 7 on inline Lua fragments.

7-      Inline Lua
------------------
Lua code can be used directly in your init.txt/.crawlrc. You can use
Lua to selectively include parts of your init.txt (based on character
type, for instance) using this syntax:
< Lua code >
or
<
Lua code
>
or
: Lua code till end of line
Examples:
# Print a welcome message
: crawl.mpr("Hello " .. you.name())
< 
# Another welcome message
crawl.mpr("Hi there")
>
# Controlling visibility of options:
: if you.race() == "Mummy" then
autopickup = $?+"/
: else
autopickup = $?+"/!%
: end