I would like to read a yaml configuration for processing, e.g. a commented version may look like:
absolute_urls: false # Absolute or relative URLs for `base_url`
timezone: '' # Valid values: http://php.net/manual/en/timezones.php
default_locale: # Default locale (defaults to system)
param_sep: ':' # Parameter separator, use ';' for Apache on windows
wrapped_site: false # For themes/plugins to know if Grav is wrapped by another platform
reverse_proxy_setup: false # Running in a reverse proxy scenario with different webserver ports than proxy
proxy_url: # Configure a manual proxy URL for GPM (eg 127.0.0.1:3128)
languages:
supported: [] # List of languages supported. eg: [en, fr, de]
include_default_lang: true # Include the default lang prefix in all URLs
translations: true # Enable translations by default
translations_fallback: true # Fallback through supported translations if active lang doesn't exist
session_store_active: false # Store active language in session
http_accept_language: false # Attempt to set the language based on http_accept_language header in the browser
override_locale: false # Override the default or system locale with language specific one
home:
alias: '/home' # Default path for home, ie /
hide_in_urls: false # Hide the home route in URLs
pages:
theme: antimatter # Default theme (defaults to "antimatter" theme)
order:
by: default # Order pages by "default", "alpha" or "date"
dir: asc # Default ordering direction, "asc" or "desc"
list:
count: 20 # Default item count per page
dateformat:
default: # The default date format Grav expects in the `date: ` field
short: 'jS M Y' # Short date format
long: 'F jS \a\t g:ia' # Long date format
publish_dates: true # automatically publish/unpublish based on dates
process:
markdown: true # Process Markdown
twig: false # Process Twig
twig_first: false # Process Twig before markdown when processing both on a page
events:
page: true # Enable page level events
twig: true # Enable twig level events
markdown:
extra: false # Enable support for Markdown Extra support (GFM by default)
auto_line_breaks: false # Enable automatic line breaks
auto_url_links: false # Enable automatic HTML links
escape_markup: false # Escape markup tags into entities
special_chars: # List of special characters to automatically convert to entities
'>': 'gt'
'<': 'lt'
types: [txt,xml,html,htm,json,rss,atom] # list of valid page types
append_url_extension: '' # Append page's extension in Page urls (e.g. '.html' results in /path/page.html)
expires: 604800 # Page expires time in seconds (604800 seconds = 7 days)
last_modified: false # Set the last modified date header based on file modifcation timestamp
etag: false # Set the etag header tag
vary_accept_encoding: false # Add `Vary: Accept-Encoding` header
redirect_default_route: false # Automatically redirect to a page's default route
redirect_default_code: 301 # Default code to use for redirects
redirect_trailing_slash: true # Handle automatically or 301 redirect a trailing / URL
ignore_files: [.DS_Store] # Files to ignore in Pages
ignore_folders: [.git, .idea] # Folders to ignore in Pages
ignore_hidden: true # Ignore all Hidden files and folders
url_taxonomy_filters: true # Enable auto-magic URL-based taxonomy filters for page collections
cache:
enabled: true # Set to true to enable caching
check:
method: file # Method to check for updates in pages: file|folder|none
driver: auto # One of: auto|file|apc|xcache|memcache|wincache
prefix: 'g' # Cache prefix string (prevents cache conflicts)
lifetime: 604800 # Lifetime of cached data in seconds (0 = infinite)
gzip: false # GZip compress the page output
twig:
cache: true # Set to true to enable twig caching
debug: false # Enable Twig debug
auto_reload: true # Refresh cache on changes
autoescape: false # Autoescape Twig vars
undefined_functions: true # Allow undefined functions
undefined_filters: true # Allow undefined filters
umask_fix: false # By default Twig creates cached files as 755, fix switches this to 775
assets: # Configuration for Assets Manager (JS, CSS)
css_pipeline: false # The CSS pipeline is the unification of multiple CSS resources into one file
css_minify: true # Minify the CSS during pipelining
css_minify_windows: false # Minify Override for Windows platforms. False by default due to ThreadStackSize
css_rewrite: true # Rewrite any CSS relative URLs during pipelining
js_pipeline: false # The JS pipeline is the unification of multiple JS resources into one file
js_minify: true # Minify the JS during pipelining
enable_asset_timestamp: false # Enable asset timestamps
collections:
jquery: system://assets/jquery/jquery-2.x.min.js
errors:
display: false # Display full backtrace-style error page
log: true # Log errors to /logs folder
debugger:
enabled: false # Enable Grav debugger and following settings
shutdown:
close_connection: true # Close the connection before calling onShutdown(). false for debugging
images:
default_image_quality: 85 # Default image quality to use when resampling images (85%)
cache_all: false # Cache all image by default
cache_perms: '0755' # MUST BE IN QUOTES!! Default cache folder perms. Usually '0755' or '0775'
debug: false # Show an overlay over images indicating the pixel depth of the image when working with retina for example
media:
enable_media_timestamp: false # Enable media timetsamps
upload_limit: 0 # Set maximum upload size in bytes (0 is unlimited)
unsupported_inline_types: [] # Array of supported media types to try to display inline
allowed_fallback_types: [] # Array of allowed media types of files found if accessed via Page route
session:
enabled: true # Enable Session support
timeout: 1800 # Timeout in seconds
name: grav-site # Name prefix of the session cookie. Use alphanumeric, dashes or underscores only. Do not use dots in the session name
secure: false # Set session secure. If true, indicates that communication for this cookie must be over an encrypted transmission. Enable this only on sites that run exclusively on HTTPS
httponly: true # Set session HTTP only. If true, indicates that cookies should be used only over HTTP, and JavaScript modification is not allowed.
I’m thinking about using a complex data reader, but on the other hand it’s well sctructed like json or xml.
Does anyone already tried this? Solutions or suggestions welcome 
Thanks
Stephan