-- Copyright 2006-2018 Mitchell mitchell.att.foicica.com. See License.txt.
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-- CMake LPeg lexer.
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local lexer = require('lexer')
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local token, word_match = lexer.token, lexer.word_match
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local P, R, S = lpeg.P, lpeg.R, lpeg.S
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local lex = lexer.new('cmake')
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-- Whitespace.
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lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1))
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-- Keywords.
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lex:add_rule('keyword', token(lexer.KEYWORD, word_match([[
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IF ENDIF FOREACH ENDFOREACH WHILE ENDWHILE ELSE ELSEIF
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]], true)))
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-- Commands.
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lex:add_rule('command', token(lexer.FUNCTION, word_match([[
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ADD_CUSTOM_COMMAND ADD_CUSTOM_TARGET ADD_DEFINITIONS ADD_DEPENDENCIES
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ADD_EXECUTABLE ADD_LIBRARY ADD_SUBDIRECTORY ADD_TEST AUX_SOURCE_DIRECTORY
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BUILD_COMMAND BUILD_NAME CMAKE_MINIMUM_REQUIRED CONFIGURE_FILE
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CREATE_TEST_SOURCELIST ENABLE_LANGUAGE ENABLE_TESTING ENDMACRO EXEC_PROGRAM
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EXECUTE_PROCESS EXPORT_LIBRARY_DEPENDENCIES FILE FIND_FILE FIND_LIBRARY
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FIND_PACKAGE FIND_PATH FIND_PROGRAM FLTK_WRAP_UI GET_CMAKE_PROPERTY
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GET_DIRECTORY_PROPERTY GET_FILENAME_COMPONENT GET_SOURCE_FILE_PROPERTY
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GET_TARGET_PROPERTY GET_TEST_PROPERTY INCLUDE INCLUDE_DIRECTORIES
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INCLUDE_EXTERNAL_MSPROJECT INCLUDE_REGULAR_EXPRESSION INSTALL INSTALL_FILES
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INSTALL_PROGRAMS INSTALL_TARGETS LINK_DIRECTORIES LINK_LIBRARIES LIST
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LOAD_CACHE LOAD_COMMAND MACRO MAKE_DIRECTORY MARK_AS_ADVANCED MATH MESSAGE
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OPTION OUTPUT_REQUIRED_FILES PROJECT QT_WRAP_CPP QT_WRAP_UI REMOVE
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REMOVE_DEFINITIONS SEPARATE_ARGUMENTS SET SET_DIRECTORY_PROPERTIES
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SET_SOURCE_FILES_PROPERTIES SET_TARGET_PROPERTIES SET_TESTS_PROPERTIES
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SITE_NAME SOURCE_GROUP STRING SUBDIR_DEPENDS SUBDIRS TARGET_LINK_LIBRARIES
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TRY_COMPILE TRY_RUN USE_MANGLED_MESA UTILITY_SOURCE VARIABLE_REQUIRES
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VTK_MAKE_INSTANTIATOR VTK_WRAP_JAVA VTK_WRAP_PYTHON VTK_WRAP_TCL WRITE_FILE
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]], true)))
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-- Constants.
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lex:add_rule('constant', token(lexer.CONSTANT, word_match([[
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BOOL CACHE FALSE N NO ON OFF NOTFOUND TRUE
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]], true)))
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-- Variables.
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lex:add_rule('variable', token(lexer.VARIABLE, word_match[[
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APPLE ARGS BORLAND CMAKE_AR CMAKE_BACKWARDS_COMPATIBILITY CMAKE_BASE_NAME
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CMAKE_BINARY_DIR CMAKE_BUILD_TOOL CMAKE_BUILD_TYPE CMAKE_CACHEFILE_DIR
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CMAKE_CACHE_MAJOR_VERSION CMAKE_CACHE_MINOR_VERSION
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CMAKE_CACHE_RELEASE_VERSION CMAKE_C_COMPILE_OBJECT CMAKE_C_COMPILER
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CMAKE_C_COMPILER_ARG1 CMAKE_C_COMPILER_ENV_VAR CMAKE_C_COMPILER_FULLPATH
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CMAKE_C_COMPILER_LOADED CMAKE_C_COMPILER_WORKS CMAKE_C_CREATE_SHARED_LIBRARY
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CMAKE_C_CREATE_SHARED_LIBRARY_FORBIDDEN_FLAGS CMAKE_C_CREATE_SHARED_MODULE
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CMAKE_C_CREATE_STATIC_LIBRARY CMAKE_CFG_INTDIR CMAKE_C_FLAGS
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CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_DEBUG_INIT CMAKE_C_FLAGS_INIT
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CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_MINSIZEREL_INIT CMAKE_C_FLAGS_RELEASE
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CMAKE_C_FLAGS_RELEASE_INIT CMAKE_C_FLAGS_RELWITHDEBINFO
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CMAKE_C_FLAGS_RELWITHDEBINFO_INIT CMAKE_C_IGNORE_EXTENSIONS
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CMAKE_C_INFORMATION_LOADED CMAKE_C_LINKER_PREFERENCE CMAKE_C_LINK_EXECUTABLE
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CMAKE_C_LINK_FLAGS CMAKE_COLOR_MAKEFILE CMAKE_COMMAND CMAKE_COMPILER_IS_GNUCC
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CMAKE_COMPILER_IS_GNUCC_RUN CMAKE_COMPILER_IS_GNUCXX
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CMAKE_COMPILER_IS_GNUCXX_RUN CMAKE_C_OUTPUT_EXTENSION
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CMAKE_C_SOURCE_FILE_EXTENSIONS CMAKE_CTEST_COMMAND CMAKE_CURRENT_BINARY_DIR
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CMAKE_CURRENT_SOURCE_DIR CMAKE_CXX_COMPILE_OBJECT CMAKE_CXX_COMPILER
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CMAKE_CXX_COMPILER_ARG1 CMAKE_CXX_COMPILER_ENV_VAR CMAKE_CXX_COMPILER_FULLPATH
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CMAKE_CXX_COMPILER_LOADED CMAKE_CXX_COMPILER_WORKS
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CMAKE_CXX_CREATE_SHARED_LIBRARY
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CMAKE_CXX_CREATE_SHARED_LIBRARY_FORBIDDEN_FLAGS CMAKE_CXX_CREATE_SHARED_MODULE
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CMAKE_CXX_CREATE_STATIC_LIBRARY CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG
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CMAKE_CXX_FLAGS_DEBUG_INIT CMAKE_CXX_FLAGS_INIT CMAKE_CXX_FLAGS_MINSIZEREL
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CMAKE_CXX_FLAGS_MINSIZEREL_INIT CMAKE_CXX_FLAGS_RELEASE
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CMAKE_CXX_FLAGS_RELEASE_INIT CMAKE_CXX_FLAGS_RELWITHDEBINFO
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CMAKE_CXX_FLAGS_RELWITHDEBINFO_INIT CMAKE_CXX_IGNORE_EXTENSIONS
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CMAKE_CXX_INFORMATION_LOADED CMAKE_CXX_LINKER_PREFERENCE
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CMAKE_CXX_LINK_EXECUTABLE CMAKE_CXX_LINK_FLAGS CMAKE_CXX_OUTPUT_EXTENSION
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CMAKE_CXX_SOURCE_FILE_EXTENSIONS CMAKE_DL_LIBS CMAKE_EDIT_COMMAND
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CMAKE_EXECUTABLE_SUFFIX CMAKE_EXE_LINKER_FLAGS CMAKE_EXE_LINKER_FLAGS_DEBUG
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CMAKE_EXE_LINKER_FLAGS_MINSIZEREL CMAKE_EXE_LINKER_FLAGS_RELEASE
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CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO CMAKE_FILES_DIRECTORY
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CMAKE_FIND_APPBUNDLE CMAKE_FIND_FRAMEWORK CMAKE_FIND_LIBRARY_PREFIXES
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CMAKE_FIND_LIBRARY_SUFFIXES CMAKE_GENERATOR CMAKE_HOME_DIRECTORY
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CMAKE_INCLUDE_FLAG_C CMAKE_INCLUDE_FLAG_C_SEP CMAKE_INCLUDE_FLAG_CXX
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CMAKE_INIT_VALUE CMAKE_INSTALL_PREFIX CMAKE_LIBRARY_PATH_FLAG
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CMAKE_LINK_LIBRARY_FLAG CMAKE_LINK_LIBRARY_SUFFIX
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CMAKE_MacOSX_Content_COMPILE_OBJECT CMAKE_MAJOR_VERSION CMAKE_MAKE_PROGRAM
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CMAKE_MINOR_VERSION CMAKE_MODULE_EXISTS CMAKE_MODULE_LINKER_FLAGS
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CMAKE_MODULE_LINKER_FLAGS_DEBUG CMAKE_MODULE_LINKER_FLAGS_MINSIZEREL
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CMAKE_MODULE_LINKER_FLAGS_RELEASE CMAKE_MODULE_LINKER_FLAGS_RELWITHDEBINFO
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CMAKE_NUMBER_OF_LOCAL_GENERATORS CMAKE_OSX_ARCHITECTURES _CMAKE_OSX_MACHINE
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CMAKE_OSX_SYSROOT CMAKE_PARENT_LIST_FILE CMAKE_PATCH_VERSION
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CMAKE_PLATFORM_HAS_INSTALLNAME CMAKE_PLATFORM_IMPLICIT_INCLUDE_DIRECTORIES
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CMAKE_PLATFORM_ROOT_BIN CMAKE_PROJECT_NAME CMAKE_RANLIB CMAKE_ROOT
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CMAKE_SHARED_LIBRARY_C_FLAGS CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS
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CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS CMAKE_SHARED_LIBRARY_CXX_FLAGS
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CMAKE_SHARED_LIBRARY_LINK_C_FLAGS CMAKE_SHARED_LIBRARY_PREFIX
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CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP
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CMAKE_SHARED_LIBRARY_SONAME_C_FLAG CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG
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CMAKE_SHARED_LIBRARY_SUFFIX CMAKE_SHARED_LINKER_FLAGS
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CMAKE_SHARED_LINKER_FLAGS_DEBUG CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL
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CMAKE_SHARED_LINKER_FLAGS_RELEASE CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO
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CMAKE_SHARED_MODULE_CREATE_C_FLAGS CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS
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CMAKE_SHARED_MODULE_PREFIX CMAKE_SHARED_MODULE_SUFFIX CMAKE_SIZEOF_VOID_P
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CMAKE_SKIP_RPATH CMAKE_SOURCE_DIR CMAKE_STATIC_LIBRARY_PREFIX
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CMAKE_STATIC_LIBRARY_SUFFIX CMAKE_SYSTEM CMAKE_SYSTEM_AND_C_COMPILER_INFO_FILE
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CMAKE_SYSTEM_AND_CXX_COMPILER_INFO_FILE CMAKE_SYSTEM_APPBUNDLE_PATH
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CMAKE_SYSTEM_FRAMEWORK_PATH CMAKE_SYSTEM_INCLUDE_PATH CMAKE_SYSTEM_INFO_FILE
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CMAKE_SYSTEM_LIBRARY_PATH CMAKE_SYSTEM_LOADED CMAKE_SYSTEM_NAME
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CMAKE_SYSTEM_PROCESSOR CMAKE_SYSTEM_PROGRAM_PATH
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CMAKE_SYSTEM_SPECIFIC_INFORMATION_LOADED CMAKE_SYSTEM_VERSION CMAKE_UNAME
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CMAKE_USE_RELATIVE_PATHS CMAKE_VERBOSE_MAKEFILE CYGWIN EXECUTABLE_OUTPUT_PATH
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FORCE HAVE_CMAKE_SIZEOF_VOID_P LIBRARY_OUTPUT_PATH LOCATION MACOSX_BUNDLE
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MINGW MSVC MSVC60 MSVC70 MSVC71 MSVC80 MSVC_IDE POST_BUILD PRE_BUILD
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PROJECT_BINARY_DIR PROJECT_NAME PROJECT_SOURCE_DIR RUN_CONFIGURE TARGET
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UNIX WIN32
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]] + P('$') * lexer.delimited_range('{}', false, true)))
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-- Operators.
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lex:add_rule('operator', token(lexer.OPERATOR, word_match[[
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AND COMMAND DEFINED DOC EQUAL EXISTS GREATER INTERNAL LESS MATCHES NAME NAMES
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NAME_WE NOT OR PATH PATHS PROGRAM STREQUAL STRGREATER STRINGS STRLESS
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]] + S('=(){}')))
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-- Identifiers.
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lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word))
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-- Strings.
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lex:add_rule('string', token(lexer.STRING, lexer.delimited_range('"')))
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-- Comments.
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lex:add_rule('comment', token(lexer.COMMENT, '#' * lexer.nonnewline^0))
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-- Fold points.
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lex:add_fold_point(lexer.KEYWORD, 'IF', 'ENDIF')
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lex:add_fold_point(lexer.KEYWORD, 'FOREACH', 'ENDFOREACH')
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lex:add_fold_point(lexer.KEYWORD, 'WHILE', 'ENDWHILE')
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lex:add_fold_point(lexer.FUNCTION, 'MACRO', 'ENDMACRO')
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lex:add_fold_point(lexer.OPERATOR, '(', ')')
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lex:add_fold_point(lexer.OPERATOR, '{', '}')
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lex:add_fold_point(lexer.COMMENT, '#', lexer.fold_line_comments('#'))
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return lex
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