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# (C) Copyright 2011- ECMWF.
#
# This software is licensed under the terms of the Apache Licence Version 2.0
# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
# In applying this licence, ECMWF does not waive the privileges and immunities
# granted to it by virtue of its status as an intergovernmental organisation nor
# does it submit to any jurisdiction.
##############################################################################
#.rst:
#
# ecbuild_list_exclude_pattern
# ============================
#
# Exclude items from a list that match a list of patterns. ::
#
# ecbuild_list_exclude_pattern( LIST <input_list>
# REGEX <regex1> [ <regex2> ... ]
# [ QUIET ] )
#
# Options
# -------
#
# LIST : required
# list variable to be cleaned
#
# REGEX : required
# Regex pattern of exclusions
#
# QUIET : optional
# Don't warn if patterns don't match
#
##############################################################################
function( ecbuild_list_exclude_pattern )
set( options QUIET )
set( single_value_args LIST )
set( multi_value_args REGEX )
cmake_parse_arguments( _p "${options}" "${single_value_args}" "${multi_value_args}" ${_FIRST_ARG} ${ARGN} )
if(_p_UNPARSED_ARGUMENTS)
ecbuild_critical("Unknown keywords given to ecbuild_list_exclude_pattern(): \"${_p_UNPARSED_ARGUMENTS}\"")
endif()
if( NOT _p_LIST )
ecbuild_critical("The call to ecbuild_list_exclude_pattern() doesn't specify the LIST.")
endif()
if( NOT _p_REGEX )
ecbuild_critical("The call to ecbuild_list_exclude_pattern() doesn't specify the REGEX.")
endif()
#####
set( result "" )
set( matches_found 0 )
# ecbuild_debug_var(_p_REGEX)
foreach( item ${${_p_LIST}} )
set( _keep 1 )
foreach( pattern ${_p_REGEX} )
if( ${item} MATCHES ${pattern} )
set( _keep 0 )
set( matches_found 1 )
endif()
endforeach()
if( _keep )
list( APPEND result ${item} )
# else()
# ecbuild_warn( "removing ${item}" )
endif()
endforeach()
if( matches_found )
set( ${_p_LIST} ${result} PARENT_SCOPE )
else()
if( NOT _p_QUIET )
ecbuild_warn( "ecbuild_list_exclude_pattern: no matches found for patterns ${_p_REGEX} in ${_p_LIST}" )
endif()
endif()
endfunction(ecbuild_list_exclude_pattern)
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