/* Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. SET environment variables First optional parameter: ; parameters are considered parts of a path variable, semicolons are appended to each element if not already present -D parameters are properties for Java or Makefile etc., -D will be prepended and the parameters will be separated by a space =D the same as above but equal sign is not required , parameters should be comma separated in the environment variable - parameters should be separated by the next parameter Other values mean that the first parameter is missing and the environment variable will be set to the space separated parameters Second parameter: name of the environment variable Next parameters: values ; implies that the equal sign is considered a part of the parameter and is not interpreted -D requires parameters in the form name=value. If the equal sign is not found, the parameters are changed to name=expanded_name Other options have optional equal sign. If it is found, only the part after the equal sign will be oprionally expanded. If the parameter is the minus sign, the next parameter will not be expanded. If the parameter is a single dot, it will be replaced with the value of the environment variable as it existed before envset was invoked. For other parameters the batch looks for the environment variable with the same name (in uppercase). If it is found, it forms the expanded_name. If the environment variable with such a name does not exist, the expanded_name will hold the parameter name without case conversion. */ parse arg mode envar args equal = 0 sep = ' ' /* Parse command line parameters */ select when mode='-' then do sep = envar parse var args envar args end when mode=';' then do sep = '' equal = -1 end when mode='-D' then equal = 1 when mode='=D' then mode = '-D' when mode=',' then sep = ',' otherwise args = envar args envar = mode mode = '' end env = 'OS2ENVIRONMENT' envar = translate(envar) orig = value(envar,,env) newval = '' expand = 1 /* for each parameter... */ do i = 1 to words(args) if expand > 0 & word(args, i) = '-' then expand = 0 else call addval word(args, i) end /* Optionally enclose path variable by quotes */ if mode = ';' & pos(' ', newval) > 0 then newval = '"' || newval || '"' /* Set the new value, 'SET' cannot be used since it does not allow '=' */ x = value(envar, newval, env) exit 0 addval: procedure expose sep equal orig expand newval mode env parse arg var if var = '.' then expvar = orig else do if equal >= 0 then do parse var var name '=' val if val = '' then var = name else var = val end if expand = 0 then expvar = var else expvar = value(translate(var),,env) if expvar = '' then expvar = var if equal >= 0 then do if val = '' then do parse var expvar key '=' val if val <> '' then name = key else do if equal > 0 then val = key else name = key end end else val = expvar if pos(' ', val) > 0 | pos('=', val) > 0 then val = '"' || val || '"' if val = '' then expvar = name else expvar = name || '=' || val end if mode = '-D' then expvar = '-D' || expvar if mode = ';' then do if right(expvar, 1) <> ';' then expvar = expvar || ';' end end if newval = '' then newval = expvar else newval = newval || sep || expvar expand = 1 return