Small project-Simple annotation Conversion

The StdAfx.h file implements a variety of predefined.

#ifndef _stdafx_h #define _stdafx_h#define UL unsigned long#endif

CONSTD write the corresponding implementation method.

#include <stdio.h> #include <stdlib.h> #include "StdAfx.h" extern "C" void converter (FILE *input,file *output    ); Represents the use of a typedef enum STATE_ENUM//enumeration type in the context of C, storing a similar amount of {no_comment_state,//Unknown case c_comment_state,//C language annotation situation cpp_comment_s TATE,//c++ annotation case str_state,//The case where comments are omitted in the string end_state//occurrence of EOF end}state_enum;typedef struct State_machine{file *input File FILE *outputfile; UL Ulstate;} State_machine; State_machine g_state;////////////////////////////////////////////void eventpro (char ch); void EventProAtNo (char ch) ; void Eventproatc (char ch); void Eventproatcpp (char ch); void Eventproatstr (char ch);///////////////////////////////// void Converter (FILE *input,file *output) {char ch;if ((NULL = = input) | | (NULL = = output)) {perror ("Input or output error."); Exit (-1);} G_state.inputfile = Input;g_state.outputfile = Output;g_state.ulstate = No_comment_state;while (g_state.ulstate! = END_ STATE) {ch = fgetc (g_state.inputfile); Eventpro (ch);}} void Eventpro (char ch) {switch (g_state.uLstate) {case No_comment_state:eventproatno (CH); break;case C_COMMENT_STATE:EVENTPROATC (CH); Break;case CPP_COMMENT_ State:eventproatcpp (CH); break;case str_state:eventproatstr (ch); break;default:break;}} void Eventproatno (char ch) {char nextch;switch (CH) {case '/': Nextch = fgetc (g_state.inputfile); if (Nextch = = '/')//cpp/*{ FPUTC ('/', g_state.outputfile); FPUTC (' * ', g_state.outputfile); g_state.ulstate = C_comment_state;} else if (Nextch = = ' * ')//C{FPUTC ('/', g_state.outputfile); FPUTC (' * ', g_state.outputfile); g_state.ulstate = Cpp_comment _state;} ELSE{FPUTC ('/', g_state.outputfile); FPUTC (nextch,g_state.outputfile);} Break;case EOF:g_state.ulstate = END_STATE;DEFAULT:FPUTC (ch,g_state.outputfile); break;}} void Eventproatc (char ch) {char nextch;switch (CH) {case ' \ n ': FPUTC (' * ', g_state.outputfile); FPUTC ('/', g_ State.outputfile); Fputc (' \ n ', g_state.outputfile); g_state.ulstate = No_comment_state;break;case EOF:fputc (' * ', g_ State.outputfile); FPUTC ('/', g_state.outputfile); g_state.ulstate = End_state;break;case '/': NEXtch = fgetc (g_state.inputfile); if (('/' = = Nextch) | | (' * ' = = Nextch)) {FPUTC (', g_state.outputfile); FPUTC (", g_state.outputfile);} Break;case ' * ': Nextch = fgetc (G_state.inputfile), if ('/' = = Nextch) {FPUTC (', g_state.outputfile); FPUTC (', g_ State.outputfile);} BREAK;DEFAULT:FPUTC (ch,g_state.outputfile); break;}} void Eventproatcpp (char ch) {char nextch;switch (CH) {case ' * ': Nextch = fgetc (g_state.inputfile); if ('/' = = Nextch) {FPUTC ( ' * ', g_state.outputfile); FPUTC ('/', g_state.outputfile); g_state.ulstate = No_comment_state;} ELSE{FPUTC (' * ', g_state.outputfile); FPUTC (nextch,g_state.outputfile);} Break;case '/': Nextch = fgetc (g_state.inputfile); if (('/' = = Nextch) | | (' * ' = = Nextch)) {FPUTC (', g_state.outputfile); FPUTC (", g_state.outputfile);} BREAK;DEFAULT:FPUTC (ch,g_state.outputfile); break;}} void Eventproatstr (char ch) {}

　　

The main.c file implements annotation conversions through the main function.

#include <stdio.h>#include<stdlib.h>extern "C" voidConverter (FILE *input,file *output);intMain () {FILE*input; FILE*output; Input= fopen ("Input.txt","R"); Output= fopen ("Output.txt","W"); if(NULL = =input) {Perror ("input error."); Exit (-1); }    if(NULL = =output) {Perror ("output error."); Exit (-1); }///////////////////////////////////////////////Converter (input,output);///////////////////////////////////////////////    if(fclose (input)! =0) {perror ("fclose input error."); Exit (-1); }    if(fclose (output)! =0) {perror ("fclose output error."); Exit (-1); }    return 0;}

This allows for a simple annotation conversion. The following is a comment-converted implementation.

In the Input.txt:

Each zone consists of several memory blocks

Each zone consists of a number of memory blocks,//each block is 4,096 bytes

int i = 0;*/

*//*int i = 0;

/**/int i = 0;
-------------------------------------------------------------
/* int i = 0;
*//*
*/

/* int i = 0;
*/int j = 0;

/*
Each zone consists of a number of memory blocks, each of which is 4,096 bytes
The No. 0 integer of each block points to the next area
So it's a single-linked list structure.
So each zone has only 4,092 bytes to hold the real data.
*/

/* int i = 0;*//*int j = 0;
*/

/*
*//*
*/int i = 0;

/////////////////////////////////////////////////////////////////////////////////////////////////////////////// 5

"Abcdefghijklmn~~~~!!!!!!!!"

The output in Output.txt is:

/* Each zone consists of several memory blocks */

/* Each zone consists of several memory blocks, each of which is 4,096 bytes per block */

/*int i = 0; */

/* int i = 0; */

/* int i = 0; */
-------------------------------------------------------------
/* int i = 0;
*//*
*/

/* int i = 0;
*/int j = 0;

/*
Each zone consists of a number of memory blocks, each of which is 4,096 bytes
The No. 0 integer of each block points to the next area
So it's a single-linked list structure.
So each zone has only 4,092 bytes to hold the real data.
*/

/* int i = 0;*//*int j = 0;
*/

/*
*//*
*/int i = 0;

/* 5*/

"Abcdefghijklmn~~~~!!!!!!!!"

Small project-Simple annotation Conversion