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| Current File : //usr/share/augeas/lenses/dist/rx.aug |
(*
Module: Rx
Generic regexps to build lenses
Author: Raphael Pinson <raphink@gmail.com>
About: License
This file is licensed under the LGPL v2+, like the rest of Augeas.
*)
module Rx =
(* Group: Spaces *)
(* Variable: space
A mandatory space or tab *)
let space = /[ \t]+/
(* Variable: opt_space
An optional space or tab *)
let opt_space = /[ \t]*/
(* Variable: cl
A continued line with a backslash *)
let cl = /[ \t]*\\\\\n[ \t]*/
(* Variable: cl_or_space
A <cl> or a <space> *)
let cl_or_space = cl | space
(* Variable: cl_or_opt_space
A <cl> or a <opt_space> *)
let cl_or_opt_space = cl | opt_space
(* Group: General strings *)
(* Variable: space_in
A string which not starting or ending with a space *)
let space_in = /[^ \r\t\n].*[^ \r\t\n]|[^ \t\n\r]/
(* Variable: no_spaces
A string with no spaces *)
let no_spaces = /[^ \t\r\n]+/
(* Variable: word
An alphanumeric string *)
let word = /[A-Za-z0-9_.-]+/
(* Variable: integer
One or more digits *)
let integer = /[0-9]+/
(* Variable: relinteger
A relative <integer> *)
let relinteger = /[-+]?[0-9]+/
(* Variable: relinteger_noplus
A relative <integer>, without explicit plus sign *)
let relinteger_noplus = /[-]?[0-9]+/
(* Variable: decimal
A decimal value (using ',' or '.' as a separator) *)
let decimal = /[0-9]+([.,][0-9]+)?/
(* Variable: reldecimal
A relative <decimal> *)
let reldecimal = /[+-]?[0-9]+([.,][0-9]+)?/
(* Variable: byte
A byte (0 - 255) *)
let byte = /25[0-5]?|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9]/
(* Variable: hex
A hex value *)
let hex = /0x[0-9a-fA-F]+/
(* Variable: octal
An octal value *)
let octal = /0[0-7]+/
(* Variable: fspath
A filesystem path *)
let fspath = /[^ \t\n]+/
(* Group: All but... *)
(* Variable: neg1
Anything but a space, a comma or a comment sign *)
let neg1 = /[^,# \n\t]+/
(*
* Group: IPs
* Cf. http://blog.mes-stats.fr/2008/10/09/regex-ipv4-et-ipv6/ (in fr)
*)
(* Variable: ipv4 *)
let ipv4 =
let dot = "." in
byte . dot . byte . dot . byte . dot . byte
(* Variable: ipv6 *)
let ipv6 =
/(([0-9A-Fa-f]{1,4}:){7}[0-9A-Fa-f]{1,4})/
| /(([0-9A-Fa-f]{1,4}:){6}:[0-9A-Fa-f]{1,4})/
| /(([0-9A-Fa-f]{1,4}:){5}:([0-9A-Fa-f]{1,4}:)?[0-9A-Fa-f]{1,4})/
| /(([0-9A-Fa-f]{1,4}:){4}:([0-9A-Fa-f]{1,4}:){0,2}[0-9A-Fa-f]{1,4})/
| /(([0-9A-Fa-f]{1,4}:){3}:([0-9A-Fa-f]{1,4}:){0,3}[0-9A-Fa-f]{1,4})/
| /(([0-9A-Fa-f]{1,4}:){2}:([0-9A-Fa-f]{1,4}:){0,4}[0-9A-Fa-f]{1,4})/
| ( /([0-9A-Fa-f]{1,4}:){6}/
. /((((25[0-5])|(1[0-9]{2})|(2[0-4][0-9])|([0-9]{1,2})))\.){3}/
. /(((25[0-5])|(1[0-9]{2})|(2[0-4][0-9])|([0-9]{1,2})))/
)
| ( /([0-9A-Fa-f]{1,4}:){0,5}:/
. /((((25[0-5])|(1[0-9]{2})|(2[0-4][0-9])|([0-9]{1,2})))\.){3}/
. /(((25[0-5])|(1[0-9]{2})|(2[0-4][0-9])|([0-9]{1,2})))/
)
| ( /::([0-9A-Fa-f]{1,4}:){0,5}/
. /((((25[0-5])|(1[0-9]{2})|(2[0-4][0-9])|([0-9]{1,2})))\.){3}/
. /(((25[0-5])|(1[0-9]{2})|(2[0-4][0-9])|([0-9]{1,2})))/
)
| ( /[0-9A-Fa-f]{1,4}::([0-9A-Fa-f]{1,4}:){0,5}/
. /[0-9A-Fa-f]{1,4}/
)
| /(::([0-9A-Fa-f]{1,4}:){0,6}[0-9A-Fa-f]{1,4})/
| /(([0-9A-Fa-f]{1,4}:){1,7}:)/
(* Variable: ip
An <ipv4> or <ipv6> *)
let ip = ipv4 | ipv6
(* Variable: hostname
A valid RFC 1123 hostname *)
let hostname = /(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*(
[A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])/
(*
* Variable: device_name
* A Linux device name like eth0 or i2c-0. Might still be too restrictive
*)
let device_name = /[a-zA-Z0-9_?.+:!-]+/
(*
* Variable: email_addr
* To be refined
*)
let email_addr = /[A-Za-z0-9_+.-]+@[A-Za-z0-9_.-]+/
(*
* Variable: iso_8601
* ISO 8601 date time format
*)
let year = /[0-9]{4}/
let relyear = /[-+]?/ . year
let monthday = /W?[0-9]{2}(-?[0-9]{1,2})?/
let time =
let sep = /[T \t]/
in let digits = /[0-9]{2}(:?[0-9]{2}(:?[0-9]{2})?)?/
in let precis = /[.,][0-9]+/
in let zone = "Z" | /[-+]?[0-9]{2}(:?[0-9]{2})?/
in sep . digits . precis? . zone?
let iso_8601 = year . ("-"? . monthday . time?)?