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System | : | Linux MiraNet 3.0.0-14-generic-pae #23-Ubuntu SMP Mon Nov 21 22:07:10 UTC 2011 i686 |
Software | : | Apache. PHP/5.3.6-13ubuntu3.10 |
ID | : | uid=65534(nobody) gid=65534(nogroup) groups=65534(nogroup)
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Disabled Functions: pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,
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[ Processes ]
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[ Eval ]
[ Encoder ]
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/
usr/
src/
maildrop-2.2.0/
maildrop/
- drwxr-xr-x
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Viewing file: lexer.h (1.86 KB) -rw-r--r--Select action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
#ifndef lexer_h #define lexer_h
static const char lexer_h_rcsid[]="$Id: lexer.h,v 1.1 1998/04/17 00:08:53 mrsam Exp $";
#include "mio.h" #include "buffer.h" #include "token.h"
//////////////////////////////////////////////////////////////////////////// // // Lexer is a lexical scanner - translates a text file into individual // tokens. The Token class is used to represent an individual token, the // Lexer class is used to transform a text file into a list of tokens. // // The scanning algorythm is quite involved. We may read ahead in the file, // then back up. An 'undo' buffer is maintained. The actual file is // referred to indirectly via the Mio class. // // The concept of the 'current line number' and 'filename' is also recorded // by the Lexer object. An error message function is provided - given an // error message, the filename, and the line number is printer to standard // error, followed by the error message. // ////////////////////////////////////////////////////////////////////////////
class Lexer {
Mio file; int linenum; Buffer filename; Token::tokentype lasttokentype; // curchar() represents the next character in the file. // Calling curchar() does NOT actual "read" the character, this // is a "peek" function.
int curchar() { return (file.peek()); }
// nextchar() is used to actually read the next character.
int nextchar() { int c=file.get();
if (c == '\n') ++linenum; return (c); } void error(const char *);
public: Lexer() {} ~Lexer() {} int Open(const char *); // Open file to read void token(Token &); // Scan the next token in private: void token2(Token &); public: void errmsg(const char *); // Show error message void errmsg(unsigned long, const char *); // Show error message for a different // line int Linenum() { return (linenum); } // Return current line number in recipe // file } ;
#endif
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