Augeas Lens Index - Augeas Documentation

Augeas Lens Index
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D |
| daemon, Hosts_Access
| daemon_list, Hosts_Access
| database Nsswitch Pg_Hba
| database_kw, Nsswitch
| dayofmonth, Cron
| dayofweek, Cron
| debian, Grub
| debian_comment, Grub
| debian_comment_re, Grub
| debian_entry, Grub
| debian_footer, Grub
| debian_header, Grub
| debian_setting_re, Grub
| decimal, Erlang
| def, LVM
| default_depth, Xorg
| default_type, Sudoers
| defaults Mke2fs Sudoers
| defaults_entry, Mke2fs
| defaults_title, Mke2fs
| del_negate, Sudoers
| delay, Anacron
| delim, Util
| dels, Grub
| description, Schroot
| destination Aliases Postfix_Virtual
| device Grub Xorg
| device_re, Ntpd
| discard, Syslog
| disk_free_limit, Rabbitmq
| display, Xorg
| display_entry, Xorg
| display_modes, Xorg
| dn, Automaster
| do_dquote Nslcd Quote
| do_dquote_opt, Quote
| do_dquote_opt_nil, Quote
| do_quote, Quote
| do_squote, Quote
| do_squote_opt, Quote
| do_squote_opt_nil, Quote
| domain, Resolv
| double Quote Test_Quote
| double_opt Quote Test_Quote
| double_opt_allow_spc, Test_Quote
| dquote_opt_nil, Test_Quote
| dquote_spaces Dovecot Quote
| driver, Xorg
| duration, Xymon_Alerting

> let daemon = let host = [ label "host" . Util.del_str "@" . list_item ] in [ label "process" . list_item . host? ]

> let daemon_list = Build.opt_list daemon list_sep

A list of daemons

> let database = [ label "database" . store database_kw . sep_colon . (Build.opt_list (service|reaction) Sep.space) . Util.comment_or_eol ]

> let database = comma_sep_list "database"

TODO: support for quoted strings

> let database_kw = Rx.word

The database specification like `passwd’, `shadow’, or `hosts’

> let dayofmonth = [ label "dayofmonth" . store num ]

> let dayofweek = [ label "dayofweek" . store alphanum ]

> let debian = [ label "debian" . del debian_header debian_header . (debian_comment|empty|debian_entry)* . del debian_footer debian_footer ]

A debian-specific section, made of debian_entry lines

> let debian_comment = [ Util.indent . label "#comment" . del /##[ \t]*/ "## " . store debian_comment_re . eol ]

A comment entry inside a debian-specific section

> let debian_comment_re = /([^ \t\n].*[^ \t\n]|[^ \t\n])/ - "## End Default Options ##"

> let debian_entry = [ Util.del_str "#" . Util.indent . key debian_setting_re . del /[ \t]*=/ "=" . value_to_eol? . eol ]

> let debian_footer = "## ## End Default Options ##\n"

Footer for a debian-specific section

> let debian_header = "## ## Start Default Options ##\n"

Header for a debian-specific section

> let debian_setting_re = "kopt" | "groot" | "alternative" | "lockalternative" | "defoptions" | "lockold" | "xenhopt" | "xenkopt" | "altoptions" | "howmany" | "memtest86" | "updatedefaultentry" | "savedefault" | "indomU"

> let decimal = store /[0-9]+(.[0-9]+)?/

Store a decimal value
An assignment, or a block containing definitions

> let default_depth = entry_int "DefaultDepth" /[dD]efault[dD]epth/

> let default_type = let value = store /[@:!>][^ \t\n\\]+/ in [ label "type" . value ]

Type definition for defaults

> let defaults = IniFile.record defaults_title ((Util.indent . (defaults_entry|common_entry)) | comment)

A defaults section

> let defaults = [ indent . key "Defaults" . default_type? . sep_cont . parameter_list . comment_or_eol ]

A Defaults entry

> let defaults_entry = entry_sto "force_undo" ("true"|"false") | entry_sto "fs_type" Rx.word | entry_sto "undo_dir" Rx.fspath | list_sto "default_mntopts" (key Rx.word) | entry_sto "enable_periodic_fsck" Rx.integer

Possible entries under the defaults section

> let defaults_title = IniFile.title "defaults"

Title for the defaults section

> let del_negate = del /(!!)*/ ""

Delete an even number of ‘!’

> let delay = [ label "delay" . store Rx.integer ]

The delay for an entry

> let delim (op:string) = del (/[ \t]*/ . op . /[ \t]*/) (" " . op . " ")

> let dels (s:string) = Util.del_str s

> let description = let lang = [ Util.del_str "[" . label "lang" . store IniFile.entry_re . Util.del_str "]" ] in IniFile.entry_generic_nocomment (key "description" . lang?) sep "#" comment

Descriptions are special entries, which can have an optional lang parameter

> let destination = ( word | command )

Can be either a word (no spaces included) or a command with spaces

> let destination = [ label "destination" . word ]

> let device = [ command "device" "" . Sep.space . store /\([A-Za-z0-9_.-]+\)/ . spc . [ label "file" . value_to_eol ] . Util.eol ]

This is a shell-only directive in upstream grub; the grub versions in at least Fedora/RHEL use this to find devices for UEFI boot

> let device = entry_str "Device" /[dD]evice/

> let device_re = Rx.device_name | /\*/

> let discard = [ label "discard" . Util.del_str "~" ]

discards matching messages

> let disk_free_limit = let value = Erlang.integer | Erlang.tuple Erlang.bare Erlang.decimal in Erlang.value "disk_free_limit" value

> let display = [ indent . del "SubSection" "SubSection" . sep_spc . sep_dquote . key "Display" . sep_dquote . eol . display_entry* . indent . del "EndSubSection" "EndSubSection" . eol ]

> 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

Known values for entries in the Display subsection

> let display_modes = [ indent . del /[mM]odes/ "Modes" . label "Modes" . [ label "mode" . sep_spc . quoted_non_empty_string_val ]+ . eol ]

> let dn = /[^:# \n\t]+/

> let do_dquote = Quote.do_dquote

> let do_dquote (body:lens) = square dquote body dquote

Enclose a lens in dquotes

> let do_dquote_opt (body:lens) = square dquote_opt body dquote_opt

Enclose a lens in optional dquotes, use dquotes by default.

> let do_dquote_opt_nil (body:lens) = square dquote_opt_nil body dquote_opt_nil

Enclose a lens in optional dquotes, default to no quotes.

> let do_quote (body:lens) = square quote body quote

Enclose a lens in quotes.

> let do_squote (body:lens) = square squote body squote

Enclose a lens in squotes

> let do_squote_opt (body:lens) = square squote_opt body squote_opt

Enclose a lens in optional squotes, use squotes by default.

> let do_squote_opt_nil (body:lens) = square squote_opt_nil body squote_opt_nil

Enclose a lens in optional squotes, default to no quotes.

> let domain = Build.key_value_line_comment "domain" Sep.space (store Rx.word) comment_eol

> let double = let body = store /[^\n]*/ in do_dquote body

A double-quoted value

> let double = [ label "double" . Quote.double ]

> let double_opt = let body = store double_opt_re in do_dquote_opt body

An optionally double-quoted value Double quotes are not allowed in value Value cannot begin or end with spaces

> let double_opt = [ label "double_opt" . Quote.double_opt ]

> let double_opt_allow_spc = let body = store /[^\n"]+/ in [ label "double" . Quote.do_dquote_opt body ]

> let dquote_opt_nil = let body = store Quote.double_opt_re in [ label "dquote_opt_nil" . Quote.do_dquote_opt_nil body ]?

> let dquote_spaces (lns1:lens) (lns2:lens) =

Make double quotes mandatory if value contains spaces, and optional if value doesn’t contain spaces.

> let dquote_spaces (lns:lens) =

Make double quotes mandatory if value contains spaces, and optional if value doesn’t contain spaces.

> let driver = entry_str "Driver" /[dD]river/

> let duration = [ key "DURATION" . [ label "operator" . comparison ] . [ label "value" . store_word ] ]

The duration filter definition
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