getword.c

来自「mips架构的bootloader,99左右的版本 但源代码现在没人更新了」· C语言 代码 · 共 45 行

/*************************************************************
 * File: lib/getword.c
 * Purpose: Part of C runtime library
 * Author: Phil Bunce ([e-mail])
 * Revision History:
 *	970304	Start of revision history
 */

#include "string.h"

/*************************************************************
* char *getword(dst,p) 
*	copies next word from p into dst, else rtns 0 
*/
char *getword(dst,p)
char *p,*dst;
{
char *a;

if (!dst || !p) return(0);

dst[0] = 0;
while (isspace(*p)) p++;
if (*p == 0) return(0);
a = p;
while (!isspace(*p) && *p != 0) p++;
strncpy(dst,a,p-a);
dst[p-a] = 0;
return(p);
}

/* int wordsz(p) return size of first word in p */
int wordsz(p)
char *p;
{
int n;

if (!p) return(0);

while (isspace(*p)) p++;
for (n=0;! *p && ! isspace(*p);n++) p++;
return(n);
}