太仓企业网站建设价格,无锡有哪些软件开发的公司,做爰网站1000部,怎么样做网站的目录结构之前项目为了自动化#xff0c;所以写一个protobuf的解释器#xff0c;用来生成项目所需的格式。 当然现在通过以下链接的指导#xff0c;跳过手工分析#xff0c;直接生成代码了。 https://developers.google.com/protocol-buffers/docs/reference/cpp-generated 这次文档…之前项目为了自动化所以写一个protobuf的解释器用来生成项目所需的格式。 当然现在通过以下链接的指导跳过手工分析直接生成代码了。 https://developers.google.com/protocol-buffers/docs/reference/cpp-generated 这次文档主要是描述如何分析protobuf格式以及如何收集需要的符号。 使用python 2.7脚本进行文本的处理。 程序分成4个模块 expression: 格式的解析 symbol在protobuf中定义的message等对象以及它们的层次结构在这里已经看不见protobuf的样子了。 typecollection基础类型定义和收集message等对象。 builder遍历symbol根据需要创建适合的输出文件。typecollection起到索引的作用。这次就不演示了。 1 测试用protobuf文件。来源于google示例 package tutorial;message Person {required string name 1;required int32 id 2 ;optional string email 3;enum PhoneType {MOBILE 0;HOME 1;WORK 2;}message PhoneNumber {required string number 1;optional PhoneType type 2 [default HOME];}repeated PhoneNumber phone 4;
}message AddressBook {repeated Person person 1;
} 2 expression实现---最简单的扫描方法分析每一个word。 # -*- coding: UTF-8 -*-# pb_expression.py
import sys
import os
import string
import shutil
import io
import pb_symbolclass StringBuffer(object):def __init__(self,src):self.src src; pass;def __del__(self):self.buf None;pass; def OpenFile(self):self.Data open(self.src).read() pass;class Expression(object):desc_set set([required,optional,repeated])b_char_set set([A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z])l_char_set set ([a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z])digit_set set([0,1,2,3,4,5,6,7,8,9])equals_char space_char openbrace_char {closebrace_char }semicolon_char ;tab_char chr(9)newline_char chr(10)return_char chr(13)slash_char chr(47)ctl_char_set set([openbrace_char,closebrace_char,semicolon_char,equals_char,\n,\r,\t,,;,space_char])empty_char_set set ([space_char,tab_char,newline_char,return_char])symbol_char_set b_char_set | l_char_set | digit_set all_char_set symbol_char_set | ctl_char_setdef backup(self):return self.index;def restore(self,prevIndex):self.index prevIndex;def forwardChar(self):if(self.index self.count):self.index self.index 1def backChar(self):if(self.index 0):self.index self.index -1def getchar(self):if( self.index self.count):char self.Buf.Data[self.index]self.forwardChar()return charreturn None;def skipComment(self):bkIndex self.backup();while 1:char self.getchar() next_char self.getchar()if(char ! self.slash_char or next_char ! self.slash_char):self.restore(bkIndex)return;while 1:char self.getchar()if(char None):self.restore(bkIndex)return; if(char self.newline_char):return;def getSpecialChar(self,currentchar): while 1:self.skipComment()char self.getchar();if(char None):break;else:if(char currentchar):break; return char; def getVisibleChar(self):while 1:self.skipComment()char self.getchar();if(char is None):break;else:if(char not in self.empty_char_set):break; return char; def getNextword(self):word Nonegot1st 0while 1:self.skipComment()char self.getchar()if(char None): break;if(got1st 0):if(char not in self.ctl_char_set):word chargot1st 1else:if(char in self.ctl_char_set):self.backChar()break;else:word word char return word;def do_enum_item(self,pbEnum):memText self.getNextword(); self.getSpecialChar(self.equals_char);memValue self.getNextword(); self.getSpecialChar(self.semicolon_char); pbEnum.append_Member(memText,memValue)def do_enum_proc(self): symbol self.getNextword(); pbEnum pb_symbol.PBEnum(symbol)while 1: currentIndex self.backup()word self.getNextword(); if(word None):break;self.restore(currentIndex)self.do_enum_item(pbEnum) end_char_Index self.backup();char self.getVisibleChar(); if(char self.closebrace_char):break;else:self.restore(end_char_Index); self.symbol.append_enum(pbEnum)def do_message_proc(self): symbol self.getNextword(); pbMsg pb_symbol.PBMessage(symbol)while 1:currentIndex self.backup()word self.getNextword();if(word None):break;if(word in self.token_set): subSymbol pb_symbol.Symbol(self.symbol.tpDict,self.symbol.entity_full_path,False);subSymbol.update_namespace(symbol); self.restore(currentIndex);subExp Expression(self.Buf,subSymbol);subExp.index self.index;subExp.do_expression(); self.index subExp.indexself.symbol.append_symbol(subSymbol)pbMsg.enableSymbol 1else:if(word in self.desc_set): memType self.getNextword(); memText self.getNextword(); pbMsg.append_Member(word,memType,memText)self.getSpecialChar(self.semicolon_char); end_char_Index self.backup();char self.getVisibleChar(); if(char self.closebrace_char):break;else: self.restore(end_char_Index);self.symbol.append_message(pbMsg)def do_import_proc(self): self.getSpecialChar(self.semicolon_char);def do_package_proc(self):word self.getNextword(); self.symbol.update_namespace(word)self.getSpecialChar(self.semicolon_char);token_set { message:do_message_proc,enum:do_enum_proc,import:do_import_proc,package:do_package_proc} def do_expression(self):while 1: current_index self.backup();token self.getNextword(); if(token None): break; if(token in self.token_set):proc self.token_set[token];proc(self);else:self.restore(current_index)break; def __init__(self,sBuf,symbol):self.Buf sBuf;self.index 0;self.count len(self.Buf.Data)self.symbol symbol; 3 symbol--定义对象类型以及层次 # -*- coding: UTF-8 -*-
# pb_symbol.py
import os
import string
import pb_typecollectionclass PBEntity(object):def __init__(self,entName,rtname):self.entName entName; self.orgName entName self.rtname rtname def outputDebug(self):pass;def create_impl(self,entity_indent,top_ns):batch_list list();return batch_list;def mem_include(self,entName):return False;class PBMessageMember(object):def __init__(self,option,memType,memText): self.option option;self.memType memType;self.memText memText;def outputDebug(self):print(self.option,self.memType,self.memText)propertydef mem_option(self):return self.optionpropertydef mem_type(self):return self.memType;propertydef mem_text(self):return self.memText class PBMessage(PBEntity): def __init__(self,entName): PBEntity.__init__(self,entName, entName );self.members [] self.enableSymbol 0; self.rt_ns ;self.tpDict Nonepropertydef Members(self):return self.members def attach_tp_dict(self,tpDict):self.tpDict tpDict; def append_Member(self,option,memType,memText): msgMem PBMessageMember(option,memType,memText)self.members.append(msgMem)def enable_Symbol(self,enable):self.enableSymbol enable;def outputDebug(self,ns):print(ns,message,self.entName);for entMsg in self.members: entMsg.outputDebug();print(); def attach_tp_dict(self,tpDict):self.tpDict tpDict; def set_rt_ns(self,rt_entity_full_path):self.rt_ns rt_entity_full_pathdef mem_include(self,entName):for entMsg in self.members: if(entName entMsg.memType):return True;return False;def detect_request(self):if(self.members.count 0 ): return True;return False;class PBEnumMember(object):def __init__(self,memText,memValue): self.memText memText;self.memValue memValue; def outputDebug(self):print(self.memText,self.memValue)class PBEnum( PBEntity):def __init__(self,entName):PBEntity.__init__(self,entName,entName);self.members []def append_Member(self,memText,memValue): msgMem PBEnumMember(memText,memValue)self.members.append(msgMem) def outputDebug(self,ns):print(ns,enum,self.entName);for entEnum in self.members: entEnum.outputDebug();print(); class Symbol(object):def __init__(self,tpDict,fullpath,rooted):self.namespace self.tpDict tpDictself.rooted rootedself.entity_full_path fullpathself.rt_entity_full_path fullpath self.entitylist []self.containerlist []def __del__(self):pass;def update_namespace(self,namespace): self.namespace namespace;if(self.rooted False):if(self.entity_full_path ):self.entity_full_path namespace self.rt_entity_full_path namespaceelse: self.entity_full_path %s_%s %(self.entity_full_path,namespace)self.rt_entity_full_path %s_%s %(self.entity_full_path,namespace)def append_type_dict(self,entity,isMsg):if(isMsg True):if(self.entity_full_path ):self.tpDict.insert_type(entity.entName ,entity.rtname,entity,)else:self.tpDict.insert_type(entity.entName,%s::%s % (self.rt_entity_full_path, entity.rtname),entity,)else:if(self.entity_full_path ):self.tpDict.insert_type(entity.entName ,entity.rtname,entity,entity.rtname)else:self.tpDict.insert_type(entity.entName,%s::%s % (self.rt_entity_full_path, entity.rtname),entity,%s::%s % (self.entity_full_path, entity.rtname))def append_message(self,msg): self.entitylist.append(msg)self.containerlist.append(msg)msg.attach_tp_dict(self.tpDict);if(self.rt_entity_full_path ):msg.set_rt_ns(self.rt_entity_full_path)else:msg.set_rt_ns(self.rt_entity_full_path _)self.append_type_dict(msg,True)def append_enum(self,enum):self.entitylist.append(enum)self.append_type_dict(enum,False)def append_symbol(self,symbol):self.entitylist.append(symbol)self.containerlist.append(symbol)def outputDebug(self,ns):for entity in self.entitylist: entity.outputDebug(ns ::self.namespace);def query_entitylist(self):return self.entitylist;def query_containerlist(self):return self.containerlist;def query_pb_ns(self):return self.namespace;def mem_include(self,entName):for entity in self.entitylist: if(entity.mem_include(entName) True):return True;return False;class PBProxy(object):def __init__(self,entity):self.entity entitypropertydef enableSymbol(self):return self.entity.enableSymboldef mem_include(self,entName): return self.entity.mem_include(entName)def create_impl(self,entity_indent,top_ns):return self.entity.create_impl(entity_indent,top_ns) propertydef entName(self):return self.entity.entName; propertydef rtname(self):return self.entity.rtname;propertydef orgName(self):return self.entity.orgName;propertydef members(self):return self.entity.members;propertydef rt_ns(self):return self.entity.rt_ns; propertydef namespace(self):return self.entity.namespace; propertydef rooted(self):return self.entity.rooted;propertydef entity_full_path(self):return self.entity.entity_full_path; propertydef rt_entity_full_path(self):return self.entity.rt_entity_full_path;propertydef entitylist(self):return self.entity.entitylist propertydef containerlist(self):return self.entity.containerlist propertydef tpDict(self):return self.entity.tpDict;def detect_request(self):return self.entity.detect_request()propertydef Members(self):return self.entity.memberspropertydef mem_option(self):return self.entity.mem_optionpropertydef mem_type(self):return self.entity.mem_type;propertydef mem_text(self):return self.entity.mem_text 4 typecollection # -*- coding: UTF-8 -*-
# pb_typecollection.pyimport os
import pb_symbolclass typeDict(object):op_req_desc requiredop_opt_desc optionalop_rep_desc repeateddef __init__(self):self.collection dict()self.insert_type(int32,__int32,pb_symbol.PBEntity(int32,int32),)self.insert_type(int64,__int64,pb_symbol.PBEntity(int64,int64),)self.insert_type(uint32,unsigned int,pb_symbol.PBEntity(uint32,uint32),)self.insert_type(bool,bool,pb_symbol.PBEntity(bool,bool),)self.insert_type(float,float,pb_symbol.PBEntity(float,float),)self.insert_type(double,double,pb_symbol.PBEntity(double,double),)self.insert_type(string,const char*,pb_symbol.PBEntity(string,string),)self.insert_type(bytes,const char*,pb_symbol.PBEntity(bytes,bytes),) def insert_type(self, entName, rtType,entity,orgType): self.collection[entName] (rtType,entity,orgType); def output_debug(self):print(type collection)for item in self.collection.items():print(item); 5 测试脚本 # -*- coding: UTF-8 -*-import pb_symbol
import pb_expression
import pb_typecollectionif __name__ __main__:pb_file google_tutorial.protosBuf pb_expression.StringBuffer(pb_file); tpDict pb_typecollection.typeDict()symbol pb_symbol.Symbol(tpDict,,True);try:sBuf.OpenFile();exp pb_expression.Expression(sBuf,symbol);exp.do_expression();symbol.outputDebug(); tpDict.output_debug(); except Exception as exc: print(%s,exc);print(done); 6 输出 命名空间::tutorial::Person 类型名称PhoneType (::tutorial::Person, enum, PhoneType) (MOBILE, 0) (HOME, 1) (WORK, 2) (::tutorial::Person, message, PhoneNumber) (required, string, number) (optional, PhoneType, type) (::tutorial, message, Person) (required, string, name) (required, int32, id) (optional, string, email) (repeated, PhoneNumber, phone) (::tutorial, message, AddressBook) (repeated, Person, person) type collection (PhoneNumber, (Person::PhoneNumber, pb_symbol.PBMessage object at 0x02B9DED0, )) (int32, (__int32, pb_symbol.PBEntity object at 0x02BE3F70, )) (string, (const char*, pb_symbol.PBEntity object at 0x02BEE0F0, )) (double, (double, pb_symbol.PBEntity object at 0x02BEE0B0, )) (float, (float, pb_symbol.PBEntity object at 0x02BEE070, )) (bytes, (const char*, pb_symbol.PBEntity object at 0x02BEE130, )) (Person, (Person, pb_symbol.PBMessage object at 0x02BEE210, )) (bool, (bool, pb_symbol.PBEntity object at 0x02BEE050, )) (PhoneType, (Person::PhoneType, pb_symbol.PBEnum object at 0x02BEE450, Person::PhoneType)) (int64, (__int64, pb_symbol.PBEntity object at 0x02BE3FB0, )) (uint32, (unsigned int, pb_symbol.PBEntity object at 0x02BE3FF0, )) (AddressBook, (AddressBook, pb_symbol.PBMessage object at 0x02BEE7B0, )) 参考 protobuf的git地址https://github.com/google/protobuf转载于:https://www.cnblogs.com/febwave/p/4819186.html
