 382879d617
			
		
	
	382879d617
	
	
	
		
			
			global name space. Can't handle recursive defintions. git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@23259 ec53bebd-3082-4978-b11e-865c3cabbd6b
		
			
				
	
	
		
			86 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			86 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| #
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| # Copyright (c) 2008 Kungliga Tekniska Högskolan
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| # (Royal Institute of Technology, Stockholm, Sweden). 
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| # All rights reserved. 
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| #
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| # Redistribution and use in source and binary forms, with or without 
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| # modification, are permitted provided that the following conditions 
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| # are met: 
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| #
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| # 1. Redistributions of source code must retain the above copyright 
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| #    notice, this list of conditions and the following disclaimer. 
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| #
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| # 2. Redistributions in binary form must reproduce the above copyright 
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| #    notice, this list of conditions and the following disclaimer in the 
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| #    documentation and/or other materials provided with the distribution. 
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| #
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| # 3. Neither the name of the Institute nor the names of its contributors 
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| #    may be used to endorse or promote products derived from this software 
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| #    without specific prior written permission. 
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| #
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| # THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 
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| # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
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| # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
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| # ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 
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| # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
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| # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
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| # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
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| # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
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| # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
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| # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
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| # SUCH DAMAGE. 
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| 
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| 
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| import sys
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| 
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| tokens = [ 'SYMBOL' ]
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| literals = ['{','}',';', ':']
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| 
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| t_SYMBOL    = r'[a-zA-Z_][a-zA-Z0-9_\.]*'
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| t_ignore = " \t\n"
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| 
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| def t_error(t):
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|     print "Illegal character '%s'" % t.value[0]
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|     t.lexer.skip(1)
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|     
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| import ply.lex as lex
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| lex.lex()
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| 
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| namespace = "global"
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| symbols = []
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| 
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| def p_syms(p):
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|     'syms : SYMBOL "{" elements "}"'
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|     print "# %s" % p[1]
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| 
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| def p_elements(p):
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|     '''elements : element
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|              | element elements'''
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| 
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| def p_element(p):
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|     '''element : SYMBOL ":"
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|                | SYMBOL ";"'''
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|     global namespace
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|     if p[2] == ':':
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|         namespace = p[1]
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|     else:
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|         symbols.append([namespace, p[1]])
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|     
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| def p_error(p):
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|     if p:
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|         print "Syntax error at '%s'" % p.value
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|     else:
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|         print "Syntax error at EOF"
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| 
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| import ply.yacc as yacc
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| yacc.yacc()
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| 
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| lines = sys.stdin.readlines()
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| 
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| for line in lines:
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|     yacc.parse(line)
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| 
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| for symbol in symbols:
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|     if symbol[0] == "global":
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|         print "%s" % symbol[1]
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