C's Trim () function __ function

C + + Code

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#include <stdio.h> #include <string.h> #include <ctype.h> void Trim (char *src); char* Trim2 (char *src); int main (int argc, char *grgv[]) { Char str[] = "good, Morning"; printf ("str=%s; strlen=%d\n ", str, strlen (str)); TRIM2 (str); printf ("str=%s; strlen=%d\n ", str, strlen (str)); return 0; } /***************************************************************************** * * Function Name: Trim2 (Dependent library function) * * Function Description: Given a c-string variable (not literal constant), remove the blank at both ends of the character * * Current version: * * Author: johnnyhu * * Modified: * * Input parameters: Char *src---> with ' c-string ' * * OUTPUT parameters: Char *src---> Formatted (remove blank characters at both ends) * * return Result: SRC * * Usage Condition: c-string variable of non-letter value constant ****************************************************************************/ char* Trim2 (char *src) { char *ori_src = src; char *begin = src; Char *end = src + strlen (src); if (begin = = end) return ori_src; while (Isblank (*begin)) ++begin; while (Isblank (*end) | |! ( *end)) --end; if (Begin > End) { *src = ' n '; return ORI_SRC; } printf ("BEGIN=%1.1S; End=%1.1s\n ", begin, end); while (begin!= end) { *src++ = *begin++; } *src++ = *end; *src = ' n '; return ORI_SRC; } /***************************************************************************** * * Function Name: Trim * * Function Description: Given a c-string variable (not literal constant), remove the blank at both ends of the character * * Current version: * * Author: johnnyhu * * Modified: * * Input parameters: Char *src---> with ' c-string ' * * OUTPUT parameters: Char *src---> Formatted (remove blank characters at both ends) * * Return Result: None * * Usage Condition: c-string variable of non-letter value constant ****************************************************************************/ void Trim (char *src) { char *begin = src; char *end = src; while (*end++) { ; Statement is null } if (begin = = end) return; while (*begin = = ' | | *begin = = ' t ') ++begin; while ((*end) = = ' | | *end = = ' | | *end = = ' t ') --end; if (Begin > End) { *src = ' n '; Return } printf ("BEGIN=%1.1S; End=%1.1s\n ", begin, end); while (begin!= end) { *src++ = *begin++; } *src++ = *end; *src = ' n '; Return }

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