67 lines
2.5 KiB
Python
67 lines
2.5 KiB
Python
#!/usr/bin/env python
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# Copyright (c) 2016 Hewlett Packard Enterprise Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import pyparsing as p
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from monasca_analytics.banana.cli import const
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EQUALS = p.Literal("=").suppress()
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CONNECT = p.Literal("->").suppress()
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DISCONNECT = p.Literal("!->").suppress()
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LPAREN = p.Literal("(").suppress()
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RPAREN = p.Literal(")").suppress()
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LOAD = p.CaselessKeyword("load").suppress()
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SAVE = p.CaselessKeyword("save").suppress()
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REMOVE = p.CaselessKeyword("rm").suppress()
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PRINT = p.CaselessKeyword("print").suppress()
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LIST = p.CaselessKeyword("list").suppress()
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HELP = p.CaselessKeyword("help").suppress()
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DOT = p.Literal(".").suppress()
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VARNAME = p.Word(p.alphas + "_", p.alphanums + "_")
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PARAMETER = p.Word(p.alphanums + "_-")
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MODULE_NAME = p.Word(p.alphanums + "_-")
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VALUE = p.Word(p.alphanums + "_-.")
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PATH = p.Word(p.alphanums + "_-/\.")
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cmd_create = (VARNAME + EQUALS + MODULE_NAME)
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cmd_connect = (VARNAME + CONNECT + VARNAME)
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cmd_disconnect = (VARNAME + DISCONNECT + VARNAME)
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cmd_modify = (VARNAME + p.OneOrMore(DOT + PARAMETER) + EQUALS + VALUE)
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cmd_load = (LOAD + p.Optional(LPAREN) + PATH + p.Optional(RPAREN))
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cmd_save = (SAVE + p.Optional(LPAREN) + p.Optional(RPAREN))
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cmd_save_as = (SAVE + p.Optional(LPAREN) + PATH + p.Optional(RPAREN))
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cmd_remove = (REMOVE + p.Optional(LPAREN) + VARNAME + p.Optional(RPAREN))
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cmd_print = (PRINT + p.Optional(LPAREN) + p.Optional(VARNAME) +
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p.Optional(RPAREN))
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cmd_list = (LIST + p.Optional(LPAREN) + p.Optional(VARNAME) +
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p.Optional(RPAREN))
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cmd_help = (HELP + p.Optional(LPAREN) + p.Optional(RPAREN))
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bnfLine = cmd_create(const.CREATE) | cmd_connect(const.CONNECT) | \
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cmd_disconnect(const.DISCONNECT) | cmd_load(const.LOAD) | \
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cmd_save_as(const.SAVE_AS) | cmd_save(const.SAVE) | \
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cmd_remove(const.REMOVE) | cmd_modify(const.MODIFY) | \
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cmd_print(const.PRINT) | cmd_list(const.LIST) | cmd_help(const.HELP)
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bnfComment = "#" + p.restOfLine
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bnf = p.OneOrMore(p.Group(bnfLine))
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bnf.ignore(bnfComment)
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def get_parser():
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return bnf
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