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authorJussi Pakkanen <jpakkane@gmail.com>2014-03-17 00:34:31 +0200
committerJussi Pakkanen <jpakkane@gmail.com>2014-03-17 00:34:31 +0200
commit4ab3dc440bca368deb96ce550ddfd8e9d7de90e7 (patch)
tree1bf88cfd2a7088bb23117ed648f8b118443a3a77 /mparser.py
parent8a02b9da394527b4ec7a6a452d6610327343bbd3 (diff)
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Kill ply dependency dead.
Diffstat (limited to 'mparser.py')
-rw-r--r--mparser.py291
1 files changed, 0 insertions, 291 deletions
diff --git a/mparser.py b/mparser.py
deleted file mode 100644
index 1a19c00..0000000
--- a/mparser.py
+++ /dev/null
@@ -1,291 +0,0 @@
-# Copyright 2012 Jussi Pakkanen
-
-# Licensed 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.
-
-import ply.lex as lex
-import ply.yacc as yacc
-import nodes
-from coredata import MesonException
-
-class ParserException(MesonException):
- def __init__(self, text, lineno):
- MesonException.__init__(self, text)
- self.lineno = lineno
-
-reserved = {'true' : 'TRUE',
- 'false' : 'FALSE',
- 'if' : 'IF',
- 'endif' : 'ENDIF',
- 'elif' : 'ELIF',
- 'else' : 'ELSE',
- 'and' : 'AND',
- 'or' : 'OR',
- 'not' : 'NOT',
- }
-
-tokens = ['LPAREN',
- 'RPAREN',
- 'LBRACKET',
- 'RBRACKET',
- 'ATOM',
- 'COMMENT',
- 'ASSIGN',
- 'EQUALS',
- 'NEQUALS',
- 'COMMA',
- 'DOT',
- 'STRING',
- 'MULTILINE_STRING',
- 'INT',
- 'EOL_CONTINUE',
- 'EOL',
- 'COLON',
- ] + list(reserved.values())
-
-t_ASSIGN = '='
-t_EQUALS = '=='
-t_NEQUALS = '\!='
-t_LPAREN = '\('
-t_RPAREN = '\)'
-t_LBRACKET = '\['
-t_RBRACKET = '\]'
-t_ignore_COMMENT = '\\#.*?(?=\\n)'
-t_COMMA = ','
-t_DOT = '\.'
-t_COLON = ':'
-
-t_ignore = ' \t'
-
-precedence = (
-('left', 'COMMA'),
-('left', 'ASSIGN'),
-('left', 'OR'),
-('left', 'AND'),
-('right', 'NOT'),
-('nonassoc', 'EQUALS', 'NEQUALS'),
-('nonassoc', 'COLON'),
-('left', 'DOT'),
-)
-
-def t_ATOM(t):
- '[_a-zA-Z][_0-9a-zA-Z]*'
- t.type = reserved.get(t.value, 'ATOM')
- return t
-
-
-def t_MULTILINE_STRING(t):
- r"'''(.|\n)*?'''"
- t.value = t.value[3:-3]
- t.lexer.lineno += t.value.count('\n')
- return t
-
-def t_STRING(t):
- "'[^']*'"
- t.value = t.value[1:-1]
- return t
-
-def t_INT(t):
- '[0-9]+'
- t.value = int(t.value)
- return t
-
-def t_EOL(t):
- r'\n'
- t.lexer.lineno += 1
- return t
-
-def t_EOL_CONTINUE(t):
- r'\\[ \t]*\n'
- t.lexer.lineno += 1
-
-def t_error(t):
- raise ParserException("Illegal character '%s'." % t.value[0], t.lineno)
-
-# Yacc part
-
-def p_codeblock(t):
- 'codeblock : statement EOL codeblock'
- cb = t[3]
- cb.prepend(t[1])
- t[0] = cb
-
-def p_codeblock_emptyline(t):
- 'codeblock : EOL codeblock'
- t[0] = t[2]
-
-def p_codeblock_empty(t):
- 'codeblock : '
- t[0] = nodes.CodeBlock(-1)
-
-def p_expression_atom(t):
- 'expression : ATOM'
- t[0] = nodes.AtomExpression(t[1], t.lineno(1))
-
-def p_expression_int(t):
- 'expression : INT'
- t[0] = nodes.IntExpression(t[1], t.lineno(1))
-
-def p_expression_bool(t):
- '''expression : TRUE
- | FALSE'''
- if t[1] == 'true':
- t[0] = nodes.BoolExpression(True, t.lineno(1))
- else:
- t[0] = nodes.BoolExpression(False, t.lineno(1))
-
-def p_expression_string(t):
- 'expression : STRING'
- t[0] = nodes.StringExpression(t[1], t.lineno(1))
-
-def p_expression_multiline_string(t):
- 'expression : MULTILINE_STRING'
- t[0] = nodes.StringExpression(t[1], t.lineno(1))
-
-def p_statement_assign(t):
- 'statement : expression ASSIGN statement'
- t[0] = nodes.Assignment(t[1], t[3], t[1].lineno())
-
-def p_statement_comparison(t):
- '''statement : statement EQUALS statement
- | statement NEQUALS statement'''
- t[0] = nodes.Comparison(t[1], t[2], t[3], t[1].lineno())
-
-def p_statement_array(t):
- '''statement : LBRACKET args RBRACKET
- | LBRACKET EOL args RBRACKET'''
- if len(t) == 4:
- t[0] = nodes.ArrayStatement(t[2], t.lineno(1))
- else:
- t[0] = nodes.ArrayStatement(t[3], t.lineno(1))
-
-def p_statement_func_call(t):
- 'statement : expression LPAREN args RPAREN'
- t[0] = nodes.FunctionCall(t[1], t[3], t[1].lineno())
-
-def p_statement_method_call(t):
- 'statement : statement DOT expression LPAREN args RPAREN'
- t[0] = nodes.MethodCall(t[1], t[3], t[5], t[1].lineno())
-
-def p_statement_if(t):
- 'statement : IF statement EOL codeblock elseblock ENDIF'
- t[0] = nodes.IfStatement(t[2], t[4], t[5], t.lineno(1))
-
-def p_statement_parentheses(t):
- 'statement : LPAREN statement RPAREN'
- t[0] = t[2]
-
-def p_statement_and(t):
- 'statement : statement AND statement'
- t[0] = nodes.AndStatement(t[1], t[3])
-
-def p_statement_or(t):
- 'statement : statement OR statement'
- t[0] = nodes.OrStatement(t[1], t[3])
-
-def p_statement_not(t):
- 'statement : NOT statement'
- t[0] = nodes.NotStatement(t[2])
-
-def p_statement_elif(t):
- 'elseblock : ELIF statement EOL codeblock elseblock'
- t[0] = nodes.IfStatement(t[2], t[4], t[5], t.lineno(1))
-
-def p_empty_else(t):
- 'elseblock : '
- return None
-
-def p_else(t):
- 'elseblock : ELSE EOL codeblock'
- t[0] = t[3]
-
-def p_statement_expression(t):
- 'statement : expression'
- t[0] = nodes.statement_from_expression(t[1])
-
-
-def p_args_multiple(t):
- '''args : statement COMMA args
- | statement COMMA EOL args
- | statement EOL COMMA args'''
- if len(t) == 5:
- args = t[4]
- else:
- args = t[3]
- args.prepend(t[1])
- t[0] = args
-
-def p_kwargs_multiple(t):
- '''args : expression COLON statement COMMA args
- | expression COLON statement COMMA EOL args
- | expression COLON statement EOL COMMA args'''
- if len(t) == 7:
- args = t[6]
- else:
- args = t[5]
- args.set_kwarg(t[1], t[3])
- t[0] = args
-
-def p_args_single_pos(t):
- 'args : statement'
- args = nodes.Arguments(t[1].lineno())
- args.prepend(t[1])
- t[0] = args
-
-def p_args_single_kw(t):
- 'args : expression COLON statement'
- a = nodes.Arguments(t[1].lineno())
- a.set_kwarg(t[1], t[3])
- t[0] = a
-
-def p_args_none(t):
- 'args :'
- t[0] = nodes.Arguments(t.lineno(0))
-
-def p_error(t):
- lineno = -1
- if t is None:
- txt = 'NONE'
- else:
- txt = t.value
- lineno = t.lineno
- raise ParserException('Parser errored out at: %s.' % txt, lineno)
-
-def test_lexer():
- s = """hello = (something) # this = (that)
- two = ['file1', 'file2']
- function(h) { stuff }
- obj.method(lll, \\
- 'string')
- """
- lexer = lex.lex()
- lexer.input(s)
- while True:
- tok = lexer.token()
- if not tok:
- break
- print(tok)
-
-def generate_parser_files(outputdir):
- code = """project('empty', 'c')
-"""
- build_ast(code, outputdir=outputdir)
-
-def build_ast(code, outputdir=None):
- code = code.rstrip() + '\n'
- lex.lex()
- if outputdir:
- parser = yacc.yacc(outputdir=outputdir)
- else:
- parser = yacc.yacc()
- result = parser.parse(code)
- return result