mirror of
https://github.com/processone/ejabberd.git
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96 lines
3.2 KiB
Erlang
96 lines
3.2 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : ejabberd_regexp.erl
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%%% Author : Badlop
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%%% Purpose : Frontend to Re and Regexp OTP modules
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%%% Created : 8 Dec 2011 by Badlop
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2016 ProcessOne
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%%%
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%%% This program is free software; you can redistribute it and/or
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%%% modify it under the terms of the GNU General Public License as
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%%% published by the Free Software Foundation; either version 2 of the
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%%% License, or (at your option) any later version.
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%%%
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%%% This program is distributed in the hope that it will be useful,
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%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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%%% General Public License for more details.
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%%%
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%%% You should have received a copy of the GNU General Public License along
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%%% with this program; if not, write to the Free Software Foundation, Inc.,
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%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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%%%
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%%%----------------------------------------------------------------------
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-module(ejabberd_regexp).
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-compile([export_all]).
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exec({ReM, ReF, ReA}, {RgM, RgF, RgA}) ->
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try apply(ReM, ReF, ReA) catch
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error:undef -> apply(RgM, RgF, RgA);
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A:B -> {error, {A, B}}
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end.
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-spec run(binary(), binary()) -> match | nomatch | {error, any()}.
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run(String, Regexp) ->
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case exec({re, run, [String, Regexp, [{capture, none}]]},
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{regexp, first_match, [binary_to_list(String),
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binary_to_list(Regexp)]})
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of
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{match, _, _} -> match;
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{match, _} -> match;
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match -> match;
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nomatch -> nomatch;
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{error, Error} -> {error, Error}
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end.
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-spec split(binary(), binary()) -> [binary()].
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split(String, Regexp) ->
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case exec({re, split, [String, Regexp, [{return, binary}]]},
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{regexp, split, [binary_to_list(String),
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binary_to_list(Regexp)]})
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of
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{ok, FieldList} -> [iolist_to_binary(F) || F <- FieldList];
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{error, Error} -> throw(Error);
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A -> A
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end.
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-spec replace(binary(), binary(), binary()) -> binary().
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replace(String, Regexp, New) ->
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case exec({re, replace, [String, Regexp, New, [{return, binary}]]},
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{regexp, sub, [binary_to_list(String),
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binary_to_list(Regexp),
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binary_to_list(New)]})
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of
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{ok, NewString, _RepCount} -> iolist_to_binary(NewString);
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{error, Error} -> throw(Error);
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A -> A
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end.
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-spec greplace(binary(), binary(), binary()) -> binary().
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greplace(String, Regexp, New) ->
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case exec({re, replace, [String, Regexp, New, [global, {return, binary}]]},
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{regexp, sub, [binary_to_list(String),
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binary_to_list(Regexp),
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binary_to_list(New)]})
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of
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{ok, NewString, _RepCount} -> iolist_to_binary(NewString);
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{error, Error} -> throw(Error);
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A -> A
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end.
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-spec sh_to_awk(binary()) -> binary().
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sh_to_awk(ShRegExp) ->
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case exec({xmerl_regexp, sh_to_awk, [binary_to_list(ShRegExp)]},
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{regexp, sh_to_awk, [binary_to_list(ShRegExp)]})
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of
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A -> iolist_to_binary(A)
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end.
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