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authorErlang/OTP <[email protected]>2009-11-20 14:54:40 +0000
committerErlang/OTP <[email protected]>2009-11-20 14:54:40 +0000
commit84adefa331c4159d432d22840663c38f155cd4c1 (patch)
treebff9a9c66adda4df2106dfd0e5c053ab182a12bd /lib/xmerl/src/xmerl_xpath_lib.erl
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The R13B03 release.OTP_R13B03
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diff --git a/lib/xmerl/src/xmerl_xpath_lib.erl b/lib/xmerl/src/xmerl_xpath_lib.erl
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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2008-2009. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+%%
+-module(xmerl_xpath_lib).
+
+-include("xmerl.hrl").
+
+-export([eval/3]).
+
+-define(string(X), #xmlObj{type = string,
+ value = X}).
+-define(number(X), #xmlObj{type = number,
+ value = X}).
+
+
+eval(primary_expr,PrimExpr,C) ->
+ primary_expr(PrimExpr, C);
+eval(predicate,Pred,C) ->
+ xmerl_xpath_pred:eval(Pred,C).
+
+primary_expr({number, N}, _C) ->
+ ?number(N);
+primary_expr({literal, S}, _C) ->
+ ?string(S);
+primary_expr({function_call, F, Args}, C) ->
+ case xmerl_xpath_pred:core_function(F) of
+ {true, F1} ->
+ xmerl_xpath_pred:F1(C, Args);
+ true ->
+ xmerl_xpath_pred:F(C, Args);
+ false ->
+ %% here, we should look up the function in the context provided
+ %% by the caller, but we haven't figured this out yet.
+ exit({not_a_core_function, F})
+ end.
+