diff options
Diffstat (limited to 'lib/xmerl/src/xmerl_xpath_lib.erl')
| -rw-r--r-- | lib/xmerl/src/xmerl_xpath_lib.erl | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/lib/xmerl/src/xmerl_xpath_lib.erl b/lib/xmerl/src/xmerl_xpath_lib.erl new file mode 100644 index 0000000000..cfd0e36667 --- /dev/null +++ b/lib/xmerl/src/xmerl_xpath_lib.erl @@ -0,0 +1,53 @@ +%% +%% %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. + |