Merge the C code of multiple consecutive spaces in a string.

Merge the C code of multiple consecutive spaces in a string.

1. Problem Description
Combine multiple consecutive spaces in a string into one space. If there is a space at the beginning and end of the merged string, remove it.
For example, "This is a string! "Is a string containing multiple spaces and requires it to be" This is a string !" .

2. C code implementation

/*************************************** * ******************************** All Rights Reserved (C) 2015, Zhou Zhaoxiong. ** File name: CombineSpace. c * File ID: none * Content Abstract: Merge multiple Spaces * Other Description: none * Current version: V1.0 * Author: Zhou Zhaoxiong * completion date: 20150331 *************************************** * *******************************/# include <stdio. h> # include <string. h> // redefine the Data Type typedef unsigned char UINT8; typedef unsigned int UINT32; typedef signed int INT32; // function declaration void CombineSpace (UINT8 * pszOldStr, UINT8 * pszNewStr ); INT32 main ();/****************************** **************************************** * Function description: main function * input parameter: none * output parameter: none * return value: none * Other description: no * modified date version number modifier modified content * found * 20150331 V1.0 Zhou Zhaoxiong create *********************** **************************************** * *******/INT32 main () {UINT8 szOldStr [100] = {0}; UINT8 szNewStr [100] = {0}; // memcpy (szOldStr, "Hello, everyone! ", Sizeof (szOldStr)-1); CombineSpace (szOldStr, szNewStr); printf (" The first case: OldStr = % s, NewStr = % s. \ n ", szOldStr, szNewStr); // memset (szOldStr, 0x00, sizeof (szOldStr); memset (szNewStr, 0x00, sizeof (szNewStr); memcpy (szOldStr, "My name is ZhouZhaoxiong! ", Sizeof (szOldStr)-1); CombineSpace (szOldStr, szNewStr); printf (" The second case: OldStr = % s, NewStr = % s. \ n ", szOldStr, szNewStr); return 0 ;} /*************************************** * ******************************** function description: merge multiple consecutive spaces into one and remove the first space * input parameter: pszOldStr-string before the space is merged * output parameter: pszNewStr-string after the space is merged * return value: no * Other Instructions: No * modified date version number modifier content *-------------------------------------------------------------------* 20150331 V1.0 Zhou Zhaoxiong create *********************************** * **********************************/void CombineSpace (UINT8 * pszOldStr, UINT8 * pszNewStr) {UINT32 iOldIndex = 0; UINT32 iNewIndex = 0; UINT8 chSingleChar = '\ 0'; UINT8 iIsSpace = 0; UINT8 szTmpNewStr [100] = {0 }; if (NULL = pszOldStr) | (NULL = pszNewStr) {printf ("CombineSpace: input parameter (s) is NULL! "); Return;} while ('\ 0 '! = (ChSingleChar = pszOldStr [iOldIndex ++]) {if (chSingleChar = '') // multiple consecutive spaces are reserved for only one {if (iIsSpace = 0) {iIsSpace = 1; szTmpNewStr [iNewIndex ++] = chSingleChar ;}} else {iIsSpace = 0; szTmpNewStr [iNewIndex ++] = chSingleChar ;}} // if the last character is a space, remove it if (szTmpNewStr [strlen (szTmpNewStr)-1] = '') {szTmpNewStr [strlen (szTmpNewStr) -1] = '\ 0';} // if the first character is a space, remove it if (szTmpNewStr [0] = '') {memcpy (pszNewStr, szTmpNewStr + 1, strlen (szTmpNewStr)-1);} else {memcpy (pszNewStr, szTmpNewStr, strlen (szTmpNewStr);} return ;}

3. program running result
Run "gcc-g-o CombineSpace. c" in Linux and then run the "CombineSpace" command. The result is as follows:

The first case: OldStr= Hello,   everyone! , NewStr=Hello, everyone!.The second case: OldStr= My name   is   ZhouZhaoxiong! , NewStr=My name is ZhouZhaoxiong!.

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