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Mini Shell
Mini Shell
(*
Module: Xorg
Parses /etc/X11/xorg.conf
Authors: Raphael Pinson <raphink@gmail.com>
Matthew Booth <mbooth@redhat.com>
About: Reference
This lens tries to keep as close as possible to `man xorg.conf` where
possible.
The definitions from `man xorg.conf` are put as commentaries for reference
throughout the file. More information can be found in the manual.
About: License
This file is licensed under the LGPLv2+, like the rest of Augeas.
About: Lens Usage
Sample usage of this lens in augtool
* Get the identifier of the devices with a "Clone" option:
> match "/files/etc/X11/xorg.conf/Device[Option = 'Clone']/Identifier"
About: Configuration files
This lens applies to /etc/X11/xorg.conf. See <filter>.
*)
module Xorg =
autoload xfm
(************************************************************************
* Group: USEFUL PRIMITIVES
*************************************************************************)
(* Group: Generic primitives *)
(* Variable: eol *)
let eol = Util.eol
(* Variable: to_eol
* Match everything from here to eol, cropping whitespace at both ends
*)
let to_eol = /[^ \t\n](.*[^ \t\n])?/
(* Variable: indent *)
let indent = Util.indent
(* Variable: comment *)
let comment = Util.comment
(* Variable: empty *)
let empty = Util.empty
(* Group: Separators *)
(* Variable: sep_spc *)
let sep_spc = Util.del_ws_spc
(* Variable: sep_dquote *)
let sep_dquote = Util.del_str "\""
(* Group: Fields and values *)
(* Variable: entries_re
* This is a list of all patterns which have specific handlers, and should
* therefore not be matched by the generic handler
*)
let entries_re = /([oO]ption|[sS]creen|[iI]nput[dD]evice|[dD]river|[sS]ub[sS]ection|[dD]isplay|[iI]dentifier|[vV]ideo[rR]am|[dD]efault[dD]epth|[dD]evice)/
(* Variable: generic_entry_re *)
let generic_entry_re = /[^# \t\n\/]+/ - entries_re
(* Variable: quoted_non_empty_string_val *)
let quoted_non_empty_string_val = del "\"" "\"" . store /[^"\n]+/
. del "\"" "\""
(* " relax, emacs *)
(* Variable: quoted_string_val *)
let quoted_string_val = del "\"" "\"" . store /[^"\n]*/ . del "\"" "\""
(* " relax, emacs *)
(* Variable: int *)
let int = /[0-9]+/
(************************************************************************
* Group: ENTRIES AND OPTIONS
*************************************************************************)
(* View: entry_int
* This matches an entry which takes a single integer for an argument
*)
let entry_int (canon:string) (re:regexp) =
[ indent . del re canon . label canon . sep_spc . store int . eol ]
(* View: entry_rgb
* This matches an entry which takes 3 integers as arguments representing red,
* green and blue components
*)
let entry_rgb (canon:string) (re:regexp) =
[ indent . del re canon . label canon
. [ label "red" . sep_spc . store int ]
. [ label "green" . sep_spc . store int ]
. [ label "blue" . sep_spc . store int ]
. eol ]
(* View: entry_xy
* This matches an entry which takes 2 integers as arguments representing X and
* Y coordinates
*)
let entry_xy (canon:string) (re:regexp) =
[ indent . del re canon . label canon
. [ label "x" . sep_spc . store int ]
. [ label "y" . sep_spc . store int ]
. eol ]
(* View: entry_str
* This matches an entry which takes a single quoted string
*)
let entry_str (canon:string) (re:regexp) =
[ indent . del re canon . label canon
. sep_spc . quoted_non_empty_string_val . eol ]
(* View: entry_generic
* An entry without a specific handler. Store everything after the keyword,
* cropping whitespace at both ends.
*)
let entry_generic = [ indent . key generic_entry_re
. sep_spc . store to_eol . eol ]
(* View: option *)
let option = [ indent . del /[oO]ption/ "Option" . label "Option" . sep_spc
. quoted_non_empty_string_val
. [ label "value" . sep_spc . quoted_string_val ]*
. eol ]
(* View: screen
* The Screen entry of ServerLayout
*)
let screen = [ indent . del /[sS]creen/ "Screen" . label "Screen"
. [ sep_spc . label "num" . store int ]?
. ( sep_spc . quoted_non_empty_string_val
. [ sep_spc . label "position" . store to_eol ]? )?
. eol ]
(* View: input_device *)
let input_device = [ indent . del /[iI]nput[dD]evice/ "InputDevice"
. label "InputDevice" . sep_spc
. quoted_non_empty_string_val
. [ label "option" . sep_spc
. quoted_non_empty_string_val ]*
. eol ]
(* View: driver *)
let driver = entry_str "Driver" /[dD]river/
(* View: identifier *)
let identifier = entry_str "Identifier" /[iI]dentifier/
(* View: videoram *)
let videoram = entry_int "VideoRam" /[vV]ideo[rR]am/
(* View: default_depth *)
let default_depth = entry_int "DefaultDepth" /[dD]efault[dD]epth/
(* View: device *)
let device = entry_str "Device" /[dD]evice/
(************************************************************************
* Group: DISPLAY SUBSECTION
*************************************************************************)
(* View: display_modes *)
let display_modes = [ indent . del /[mM]odes/ "Modes" . label "Modes"
. [ label "mode" . sep_spc
. quoted_non_empty_string_val ]+
. eol ]
(*************************************************************************
* View: display_entry
* Known values for entries in the Display subsection
*
* Definition:
* > Depth depth
* > FbBpp bpp
* > Weight red-weight green-weight blue-weight
* > Virtual xdim ydim
* > ViewPort x0 y0
* > Modes "mode-name" ...
* > Visual "visual-name"
* > Black red green blue
* > White red green blue
* > Options
*)
let display_entry = entry_int "Depth" /[dD]epth/ |
entry_int "FbBpp" /[fF]b[bB]pp/ |
entry_rgb "Weight" /[wW]eight/ |
entry_xy "Virtual" /[vV]irtual/ |
entry_xy "ViewPort" /[vV]iew[pP]ort/ |
display_modes |
entry_str "Visual" /[vV]isual/ |
entry_rgb "Black" /[bB]lack/ |
entry_rgb "White" /[wW]hite/ |
entry_str "Options" /[oO]ptions/ |
empty |
comment
(* View: display *)
let display = [ indent . del "SubSection" "SubSection" . sep_spc
. sep_dquote . key "Display" . sep_dquote
. eol
. display_entry*
. indent . del "EndSubSection" "EndSubSection" . eol ]
(************************************************************************
* Group: EXTMOD SUBSECTION
*************************************************************************)
let extmod_entry = entry_str "Option" /[oO]ption/ |
empty |
comment
let extmod = [ indent . del "SubSection" "SubSection" . sep_spc
. sep_dquote . key "extmod" . sep_dquote
. eol
. extmod_entry*
. indent . del "EndSubSection" "EndSubSection" . eol ]
(************************************************************************
* Group: SECTIONS
*************************************************************************)
(************************************************************************
* Variable: section_re
* Known values for Section names
*
* Definition:
* > The section names are:
* >
* > Files File pathnames
* > ServerFlags Server flags
* > Module Dynamic module loading
* > Extensions Extension Enabling
* > InputDevice Input device description
* > InputClass Input Class description
* > Device Graphics device description
* > VideoAdaptor Xv video adaptor description
* > Monitor Monitor description
* > Modes Video modes descriptions
* > Screen Screen configuration
* > ServerLayout Overall layout
* > DRI DRI-specific configuration
* > Vendor Vendor-specific configuration
*************************************************************************)
let section_re = /(Extensions|Files|ServerFlags|Module|InputDevice|InputClass|Device|VideoAdaptor|Monitor|Modes|Screen|ServerLayout|DRI|Vendor)/
(************************************************************************
* Variable: secton_re_obsolete
* The following obsolete section names are still recognised for
* compatibility purposes. In new config files, the InputDevice
* section should be used instead.
*
* Definition:
* > Keyboard Keyboard configuration
* > Pointer Pointer/mouse configuration
*************************************************************************)
let section_re_obsolete = /(Keyboard|Pointer)/
(* View: section_entry *)
let section_entry = option |
screen |
display |
extmod |
input_device |
driver |
identifier |
videoram |
default_depth |
device |
entry_generic |
empty | comment
(************************************************************************
* View: section
* A section in xorg.conf
*
* Definition:
* > Section "SectionName"
* > SectionEntry
* > ...
* > EndSection
*************************************************************************)
let section = [ indent . del "Section" "Section"
. sep_spc . sep_dquote
. key (section_re|section_re_obsolete) . sep_dquote
. eol
. section_entry*
. indent . del "EndSection" "EndSection" . eol ]
(*
* View: lns
* The xorg.conf lens
*)
let lns = ( empty | comment | section )*
(* Variable: filter *)
let filter = incl "/etc/X11/xorg.conf"
. incl "/etc/X11/xorg.conf.d/*.conf"
. Util.stdexcl
let xfm = transform lns filter
Zerion Mini Shell 1.0