Sharp.Augeas/Sharp.Augeas.Test/lens/properties.aug

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2022-11-08 20:57:02 +03:00
(* Augeas module for editing Java properties files
Author: Craig Dunn <craig@craigdunn.org>
Limitations:
- doesn't support \ alone on a line
- values are not unescaped
- multi-line properties are broken down by line, and can't be replaced with a single line
See format info: http://docs.oracle.com/javase/6/docs/api/java/util/Properties.html#load(java.io.Reader)
*)
module Properties =
(* Define some basic primitives *)
let empty = Util.empty_generic_dos /[ \t]*[#!]?[ \t]*/
let eol = Util.doseol
let hard_eol = del /\r?\n/ "\n"
let sepch = del /([ \t]*(=|:)|[ \t])/ "="
let sepspc = del /[ \t]/ " "
let sepch_ns = del /[ \t]*(=|:)/ "="
let sepch_opt = del /[ \t]*(=|:)?[ \t]*/ "="
let value_to_eol_ws = store /(:|=)[^\r\n]*[^ \t\r\n\\]/
let value_to_bs_ws = store /(:|=)[^\n]*[^\\\n]/
let value_to_eol = store /([^ \t\n:=][^\n]*[^ \t\r\n\\]|[^ \t\r\n\\:=])/
let value_to_bs = store /([^ \t\n:=][^\n]*[^\\\n]|[^ \t\n\\:=])/
let indent = Util.indent
let backslash = del /[\\][ \t]*\n/ "\\\n"
let opt_backslash = del /([\\][ \t]*\n)?/ ""
let entry = /([^ \t\r\n:=!#\\]|[\\]:|[\\]=|[\\][\t ]|[\\][^\/\r\n])+/
let multi_line_entry =
[ indent . value_to_bs? . backslash ] .
[ indent . value_to_bs . backslash ] * .
[ indent . value_to_eol . eol ] . value " < multi > "
let multi_line_entry_ws =
opt_backslash .
[ indent . value_to_bs_ws . backslash ] + .
[ indent . value_to_eol . eol ] . value " < multi_ws > "
(* define comments and properties*)
let bang_comment = [ label "!comment" . del /[ \t]*![ \t]*/ "! " . store /([^ \t\n].*[^ \t\r\n]|[^ \t\r\n])/ . eol ]
let comment = ( Util.comment | bang_comment )
let property = [ indent . key entry . sepch . ( multi_line_entry | indent . value_to_eol . eol ) ]
let property_ws = [ indent . key entry . sepch_ns . ( multi_line_entry_ws | indent . value_to_eol_ws . eol ) ]
let empty_property = [ indent . key entry . sepch_opt . hard_eol ]
let empty_key = [ sepch_ns . ( multi_line_entry | indent . value_to_eol . eol ) ]
(* setup our lens and filter*)
let lns = ( empty | comment | property_ws | property | empty_property | empty_key ) *