Glyph - <code>options.*</code>

The following configuration settings are used to enable or disable specific Glyph functionalities and behaviors.

Name	Description	Default
`options.filters_by_file_extension`	If set to `true`, a filter macro is applied to included files, based on their extensions (for more information on including files, see Content Reuse).	`nil`
`options.macro_set`	Determines which macro set will be loaded. It can be set to: glyph — Loads core, filter, xml macros plus all macros necessary for the `document.output` setting. xml — Loads core and xml macros. core — Loads core macros only.	`"glyph"`
`options.safe_mode`	Enables Safe Mode (for more information on Glyph modes, see Modes).	`false`
`options.url_validation`	If set to true_, every external link will be validated (see editing/links.html#links">Links and Bookmarks).	`false`
`options.xml_blacklist`	The XML tags listed here cannot be generated using Glyph code.	`["applet", "base", "basefont", "embed", "frame", "frameset", "iframe", "isindex", "meta", "noframes", "noscript", "object", "param", "title"]`
`options.xml_fallback`	If set to true, any unknown macro name will considered an XML element (see Other HTML Elements).	`true`
`options.ebook.converter`	The full path name of the ebook-convert command. Defaults to /usr/bin/ebook-convert.	`nil`