1 files changed, 153 insertions, 0 deletions
diff --git a/builderparser.py b/builderparser.py
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index 0000000..778e09f
--- /dev/null
+++ b/builderparser.py
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+#!/usr/bin/python3 -tt
+
+# 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
+
+tokens = ['LPAREN',
+          'RPAREN',
+          'LBRACKET',
+          'RBRACKET',
+          'LBRACE',
+          'RBRACE',
+          'ATOM',
+          'COMMENT',
+          'EQUALS',
+          'COMMA',
+          'DOT',
+          'STRING',
+          'EOL_CONTINUE',
+          'EOL',
+          ]
+
+t_EQUALS = '='
+t_LPAREN = '\('
+t_RPAREN = '\)'
+t_LBRACKET = '\['
+t_RBRACKET = '\]'
+t_LBRACE = '\{'
+t_RBRACE = '\}'
+t_ATOM = '[a-zA-Z][_0-9a-zA-Z]*'
+t_COMMENT = '\#[^\n]*'
+t_COMMA = ','
+t_DOT = '\.'
+
+t_ignore = ' \t'
+
+def t_STRING(t):
+    "'[^']*'"
+    t.value = t.value[1:-1]
+    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):
+    print("Illegal character '%s'" % t.value[0])
+    t.lexer.skip(1)
+
+# Yacc part
+
+def p_codeblock(t):
+    'codeblock : statement EOL codeblock'
+    print('Codeblock')
+    pass
+
+def p_codeblock_last(t):
+    'codeblock : statement EOL'
+    print('Single line')
+    pass
+
+#def p_codeblock_empty(t):
+#    'codeblock :'
+#    pass
+
+def p_expression_atom(t):
+    'expression : ATOM'
+    print('Atom: ' + t[1])
+    t[0] = t[1]
+
+def p_expression_string(t):
+    'expression : STRING'
+    print('String: ' + t[1])
+    t[0] = t[1]
+
+def p_statement_assign(t):
+    'statement : expression EQUALS statement'
+    pass
+
+def p_statement_func_call(t):
+    'statement : expression LPAREN args RPAREN'
+    print('Function call: %s. Args: %s' % (str(t[1]), str(t[3]))) # t[1])
+
+def p_statement_method_call(t):
+    'statement : expression DOT expression LPAREN args RPAREN'
+    print('Method call: %s %s. Args: %s' % (str(t[1]), str(t[3]), str(t[5])))
+
+def p_statement_expression(t):
+    'statement : expression'
+    #print('s-e: ' + t[1])
+    t[0] = t[1]
+
+def p_args_multiple(t):
+    'args : statement COMMA args'
+    t[0] = [t[1]] + t[3]
+
+def p_args_single(t):
+    'args : statement'
+    t[0] = [t[1]]
+
+def p_args_none(t):
+    'args :'
+    t[0] = []
+
+def p_error(t):
+    print('Parser errored out at: ' + t.value)
+
+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 test_parser():
+    code = """func_call('something', 'or else')
+    objectname.methodname(abc)
+    emptycall()
+    """
+    lexer = lex.lex()
+    parser = yacc.yacc()
+    result = parser.parse(code)
+    print(result)
+
+if __name__ == '__main__':
+    #test_lexer()
+    test_parser()