Lua fixes

docs/Options.md

@@ -10,7 +10,7 @@ this means to deny only that single IP address.
 
 Subnet masks may vary from 0 to 32, inclusive. The default setting is to allow
 all accesses. On each request the full list is traversed, and
-the last match wins. Example: `$ mongoose -access_control_list -0.0.0.0/0,+192.168/16` to deny all acccesses except from 192.168/16 subnet. To learn
+the last match wins. Example: `$ mongoose -access_control_list -0.0.0.0/0,+192.168/16` to deny all acccesses except those from `192.168/16` subnet. To learn
 more about subnet masks, see the
 [Wikipedia page on Subnetwork](http://en.wikipedia.org/wiki/Subnetwork)
 
@@ -24,25 +24,24 @@ mongoose executable. Default: not set, no query logging is done.
 Authorization realm used in `.htpasswd` authorization. Default: `mydomain.com`
 
 ### cgi_interpreter
-Path to an executable to use as CGI interpreter for __all__ CGI scripts
-regardless script extension.
-for an interpreter. Default: not set, Mongoose looks at
+Path to an executable to be used use as an interpreter for __all__ CGI scripts
+regardless script extension.  Default: not set, Mongoose looks at
 [shebang line](http://en.wikipedia.org/wiki/Shebang_(Unix\).
 
 For example, if both PHP and perl CGIs are used, then
 `#!/path/to/php-cgi.exe` and `#!/path/to/perl.exe` must be first lines of the
 respective CGI scripts. Note that paths should be either full file paths,
-or file paths relative to the directory where mongoose server is located.
+or file paths relative to the directory where mongoose executable is located.
 
 If all CGIs use the same interpreter, for example they are all PHP, then
 `cgi_interpreter` option can be set to the path to `php-cgi.exe` executable and
 shebang line in the CGI scripts can be omitted.
-Note that PHP scripts must use `php-cgi.exe` executable, not `php.exe`.
+**Note**: PHP scripts must use `php-cgi.exe`, not `php.exe`.
 
 ### cgi_pattern
 All files that match `cgi_pattern` are treated as CGI files. Default pattern
 allows CGI files be anywhere. To restrict CGIs to a certain directory,
-use `/path/to/cgi-bin/**.cgi` as pattern. Note that full file path is
+use `/path/to/cgi-bin/**.cgi` as a pattern. Note that **full file path** is
 matched against the pattern, not the URI.
 
 When Mongoose starts CGI program, it creates new environment for it (in
@@ -66,10 +65,6 @@ A directory to serve. Default: current working directory.
 ### enable\_directory\_listing
 Enable directory listing, either `yes` or `no`. Default: `yes`.
 
-### error\_log\_file
-Path to a file for error logs. Either full path, or relative to the
-mongoose executable. Default: not set, no errors are logged.
-
 ### extra\_mime\_types
 Extra mime types to recognize, in form `extension1=type1,extension2=type2,...`.
 Extension must include dot.  Example:
@@ -92,7 +87,7 @@ must be for a file name only, not including directory name, e.g.
 not set.
 
 ### idle\_timeout\_ms
-Timeout for idle connections. Default: 30000 (30 seconds)
+Timeout for idle connections in milliseconds. Default: `30000` (30 seconds)
 
 ### index_files
 Comma-separated list of files to be treated as directory index
@@ -113,7 +108,7 @@ will bind to all addresses.  Default: 8080.
 Switch to given user credentials after startup. UNIX-only. This option is
 required when mongoose needs to bind on privileged port on UNIX, e.g.
 
-    $ sudo mongoose -listening_ports 80 -run_as_user nobody
+    $ sudo mongoose -listening_port 80 -run_as_user nobody
 
 Default: not set.
 
@@ -128,11 +123,14 @@ a path relative to the web server's current working directory. Note that
 `uri_pattern`, as all mongoose patterns, is a prefix pattern. If `uri_pattern`
 is a number, then it is treated as HTTP error code, and `file_or_directory_path`
 should be an URI to redirect to. Mongoose will issue `302` temporary redirect
-to the specified URI, appending two parameters:
-`?code=<http_error_code&orig_uri=<original_uri>`.
+to the specified URI with following parameters:
+`?code=HTTP_ERROR_CODE&orig_uri=ORIGINAL_URI&query_string=QUERY_STRING`.
 
-This makes it possible to serve many directories outside from `document_root`,
-redirect all requests to scripts, and do other tricky things. Examples:
+If `uri_pattern` starts with `@` symbol, then Mongoose compares
+it with the `HOST` header of the request. If they are equal, Mongoose sets
+document root to `file_or_directory_path`, implementing virtual hosts support.
+
+Examples:
 
     # Redirect all accesses to `.doc` files to a special script
     mongoose -url_rewrites **.doc$=/path/to/cgi-bin/handle_doc.cgi
@@ -143,4 +141,7 @@ redirect all requests to scripts, and do other tricky things. Examples:
     # Redirect 404 errors to a specific error page
     mongoose -url_rewrites 404=/cgi-bin/error.cgi
 
+    # Virtual hosts example: serve foo.com domain from different directory
+    mongoose -url_rewrites @foo.com=/var/www/foo.com
+
 Default: not set.