3 &yV!@shddlZddlmZGdddeZGdddeZdZdZed krdddl Z ed Z e j e d d dS) N)Templatec@s(eZdZd ddZd ddZddZdS) ASTCodeGenerator _c_ast.cfgcCs ||_dd|j|D|_dS)zN Initialize the code generator from a configuration file. cSsg|]\}}t||qS)NodeCfg).0namecontentsrrR/var/www/html/enquirykeeper_venv/lib/python3.6/site-packages/pycparser/_ast_gen.py sz-ASTCodeGenerator.__init__..N) cfg_filename parse_cfgfilenode_cfg)selfr rrr __init__szASTCodeGenerator.__init__NcCsHttj|jd}|t7}x|jD]}||jd7}q"W|j|dS)z< Generates the code into file, an open file buffer. )r z N)r_PROLOGUE_COMMENT substituter _PROLOGUE_CODErgenerate_sourcewrite)rfilesrcrrrr generates   zASTCodeGenerator.generatec cst|d}x|D]}|j}| s|jdr0q|jd}|jd}|jd}|dksf||ksf||krvtd||f|d|}||d|}|rd d |jd Dng} || fVqWWdQRXdS) ze Parse the configuration file and yield pairs of (name, contents) for each node. r#:[]zInvalid line in %s: %s NcSsg|] }|jqSr)strip)rvrrr r 7sz2ASTCodeGenerator.parse_cfgfile..,)openr startswithfind RuntimeErrorsplit) rfilenameflineZcolon_iZ lbracket_iZ rbracket_irvalZvallistrrr r &s      zASTCodeGenerator.parse_cfgfile)r)N)__name__ __module__ __qualname__rrr rrrr rs  rc@s8eZdZdZddZddZddZdd Zd d Zd S) rz Node configuration. name: node name contents: a list of contents - attributes and child nodes See comment at the top of the configuration file for details. cCs||_g|_g|_g|_g|_x^|D]V}|jd}|jj||jdrV|jj|q$|jdrn|jj|q$|jj|q$WdS)N*z**)r all_entriesattrchild seq_childrstripappendendswith)rrr entryZ clean_entryrrr rBs     zNodeCfg.__init__cCs,|j}|d|j7}|d|j7}|S)N ) _gen_init _gen_children_gen_attr_names)rrrrr rTszNodeCfg.generate_sourcecCsd|j}|jrDdj|j}djdd|jD}|d7}d|}nd}d}|d |7}|d |7}x$|jd gD]}|d ||f7}qrW|S) Nzclass %s(Node): z, css|]}dj|VqdS)z'{0}'N)format)rerrr _sz$NodeCfg._gen_init..z, 'coord', '__weakref__'z(self, %s, coord=None)z'coord', '__weakref__'z(self, coord=None)z __slots__ = (%s) z def __init__%s: Zcoordz self.%s = %s )rr/join)rrargsslotsarglistrrrr r8Zs     zNodeCfg._gen_initcCsld}|jr`|d7}x |jD]}|d t|d7}qWx |jD]}|dt|d7}q.))r>r0)rrrrr r:szNodeCfg._gen_attr_namesN) r+r,r-__doc__rrr8r9r:rrrr r;s ra#----------------------------------------------------------------- # ** ATTENTION ** # This code was automatically generated from the file: # $cfg_filename # # Do not modify it directly. Modify the configuration file and # run the generator again. # ** ** *** ** ** # # pycparser: c_ast.py # # AST Node classes. # # Copyright (C) 2008-2015, Eli Bendersky # License: BSD #----------------------------------------------------------------- a import sys class Node(object): __slots__ = () """ Abstract base class for AST nodes. """ def children(self): """ A sequence of all children that are Nodes """ pass def show(self, buf=sys.stdout, offset=0, attrnames=False, nodenames=False, showcoord=False, _my_node_name=None): """ Pretty print the Node and all its attributes and children (recursively) to a buffer. buf: Open IO buffer into which the Node is printed. offset: Initial offset (amount of leading spaces) attrnames: True if you want to see the attribute names in name=value pairs. False to only see the values. nodenames: True if you want to see the actual node names within their parents. showcoord: Do you want the coordinates of each Node to be displayed. """ lead = ' ' * offset if nodenames and _my_node_name is not None: buf.write(lead + self.__class__.__name__+ ' <' + _my_node_name + '>: ') else: buf.write(lead + self.__class__.__name__+ ': ') if self.attr_names: if attrnames: nvlist = [(n, getattr(self,n)) for n in self.attr_names] attrstr = ', '.join('%s=%s' % nv for nv in nvlist) else: vlist = [getattr(self, n) for n in self.attr_names] attrstr = ', '.join('%s' % v for v in vlist) buf.write(attrstr) if showcoord: buf.write(' (at %s)' % self.coord) buf.write('\n') for (child_name, child) in self.children(): child.show( buf, offset=offset + 2, attrnames=attrnames, nodenames=nodenames, showcoord=showcoord, _my_node_name=child_name) class NodeVisitor(object): """ A base NodeVisitor class for visiting c_ast nodes. Subclass it and define your own visit_XXX methods, where XXX is the class name you want to visit with these methods. For example: class ConstantVisitor(NodeVisitor): def __init__(self): self.values = [] def visit_Constant(self, node): self.values.append(node.value) Creates a list of values of all the constant nodes encountered below the given node. To use it: cv = ConstantVisitor() cv.visit(node) Notes: * generic_visit() will be called for AST nodes for which no visit_XXX method was defined. * The children of nodes for which a visit_XXX was defined will not be visited - if you need this, call generic_visit() on the node. You can use: NodeVisitor.generic_visit(self, node) * Modeled after Python's own AST visiting facilities (the ast module of Python 3.0) """ def visit(self, node): """ Visit a node. """ method = 'visit_' + node.__class__.__name__ visitor = getattr(self, method, self.generic_visit) return visitor(node) def generic_visit(self, node): """ Called if no explicit visitor function exists for a node. Implements preorder visiting of the node. """ for c_name, c in node.children(): self.visit(c) __main__z _c_ast.cfgzc_ast.pyw) pprintstringrobjectrrrrr+sysZast_genrr"rrrr  s *br