50 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			C
		
	
	
		
		
			
		
	
	
			50 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			C
		
	
	
|  | /**
 | ||
|  |  * file: utilities.ccp | ||
|  |  * Author: Frank Dellaert | ||
|  |  **/ | ||
|  | 
 | ||
|  | #pragma once
 | ||
|  | 
 | ||
|  | #include <exception>
 | ||
|  | #include <sstream>
 | ||
|  | 
 | ||
|  | class CantOpenFile : public std::exception { | ||
|  |  private: | ||
|  |   std::string filename_; | ||
|  |  public: | ||
|  |  CantOpenFile(const std::string& filename) : filename_(filename) {} | ||
|  |   ~CantOpenFile() throw() {} | ||
|  |   virtual const char* what() const throw() {  | ||
|  |     return ("Can't open file " + filename_).c_str();  | ||
|  |   } | ||
|  | }; | ||
|  | 
 | ||
|  | class ParseFailed : public std::exception { | ||
|  |  private: | ||
|  |   int length_; | ||
|  |  public: | ||
|  |  ParseFailed(int length) : length_(length) {} | ||
|  |   ~ParseFailed() throw() {} | ||
|  |   virtual const char* what() const throw() {  | ||
|  |     std::stringstream buf; | ||
|  |     buf << "Parse failed at character " << (length_+1); | ||
|  |     return buf.str().c_str();  | ||
|  |   } | ||
|  | }; | ||
|  | 
 | ||
|  | /**
 | ||
|  |  * read contents of a file into a std::string | ||
|  |  */ | ||
|  | std::string file_contents(const std::string& filename, bool skipheader=false); | ||
|  | 
 | ||
|  | /**
 | ||
|  |  * Check whether two files are equal | ||
|  |  * By default, skips the first line of actual so header is not generated | ||
|  |  */ | ||
|  | bool files_equal(const std::string& actual, const std::string& expected, bool skipheader=true); | ||
|  | 
 | ||
|  | /**
 | ||
|  |  * emit a header at the top of generated files | ||
|  |  */ | ||
|  | void emit_header_comment(std::ofstream& ofs, const std::string& delimiter); |