C读取csv文件

我遇到了一个我以前没有遇到的问题，并且很困惑...由于某些原因，当我尝试通过char读取一个CSV文件字符，但它看起来像空格不知何故被放置在那里......还有什么更奇怪的是，在任何地方都不存在空间字符。我举一个例子......C读取csv文件

char *readgd(const char *fname) 
{ 
    char *gddata, *tmp; 
    FILE *fp; 
    int buff = 1024, c = 0, ch; 

    if(!(fp = fopen(fname, "r"))) 
    { 
     printf("\nError! Could not open %s!", fname); 
     return 0x00; 
    } 
    if(!(gddata = malloc(buff))) 
    { 
     fclose(fp); 
     printf("\nError! Memory allocation failed!"); 
     return 0x00; 
    } 
    while(ch != EOF) 
    { 
     c++; 
     ch = fgetc(fp); 
     if(buff <= c) 
     { 
      buff += buff; 
      if(!(tmp = realloc(gddata, buff))) 
      { 
       free(gddata); 
       fclose(fp); 
       printf("\nError! Memory allocation failed!"); 
      } 
      gddata = tmp; 
     } 
     gddata[c - 1] = ch; 
     if(gddata[c - 1] != ' ') printf("%c", gddata[c - 1]); //no spaces? 
    } 
    if(!(tmp = realloc(gddata, c + 1))) 
    { 
     free(gddata); 
     fclose(fp); 
     printf("\nError! Memory allocation failed!"); 
    } 
    gddata = tmp; 
    gddata[c] = 0x00; 
    fclose(fp); 

    return gddata; 
}

具有以下CSV片段：

:Tagname,Area,SecurityGroup,Container,ContainedName,ShortDesc,ExecutionRelativeOrder,ExecutionRelatedObject,UDAs,Extensions,CmdData,Address_ACbHAlmCfg,Address_ACbHWarnCfg,Address_ACbLAlmCfg,Address_ACbLWarnCfg,Address_ACbTfCfg,Address_ACrHAlmDb,Address_ACrHAlmSp,Address_ACrHAlmTmrSp,Address_ACrHWarnDb,Address_ACrHWarnSp,Address_ACrHWarnTmrSp,Address_ACrLAlmDb,Address_ACrLAlmSp,Address_ACrLAlmTmrSp,Address_ACrLWarnDb,Address_ACrLWarnSp,Address_ACrLWarnTmrSp,Address_ACrTfTmrSp,Address_bHalm,Address_bHWarn,Address_bLAlm,Address_bLwarn,Address_bMode,Address_bTfAlm,Address_rCCmd,Address_rVal,

输出这个到控制台：

■: T a g n a m e , A r e a , S e c u r i t y G r o u p , C o n t a i n e r , C 
    o n t a i n e d N a m e , S h o r t D e s c , E x e c u t i o n R e l a t i v e 
    O r d e r , E x e c u t i o n R e l a t e d O b j e c t , U D A s , E x t e n s 
    i o n s , C m d D a t a , A d d r e s s _ A C b H A l m C f g , A d d r e s s _ 
    A C b H W a r n C f g , A d d r e s s _ A C b L A l m C f g , A d d r e s s _ A 
    C b L W a r n C f g , A d d r e s s _ A C b T f C f g , A d d r e s s _ A C r H 
    A l m D b , A d d r e s s _ A C r H A l m S p , A d d r e s s _ A C r H A l m T 
    m r S p , A d d r e s s _ A C r H W a r n D b , A d d r e s s _ A C r H W a r n 
    S p , A d d r e s s _ A C r H W a r n T m r S p , A d d r e s s _ A C r L A l m 
    D b , A d d r e s s _ A C r L A l m S p , A d d r e s s _ A C r L A l m T m r S 
    p , A d d r e s s _ A C r L W a r n D b , A d d r e s s _ A C r L W a r n S p , 
    A d d r e s s _ A C r L W a r n T m r S p , A d d r e s s _ A C r T f T m r S p 
    , A d d r e s s _ b H a l m , A d d r e s s _ b H W a r n , A d d r e s s _ b L 
    A l m , A d d r e s s _ b L w a r n , A d d r e s s _ b M o d e , A d d r e s s 
    _ b T f A l m , A d d r e s s _ r C C m d , A d d r e s s _ r V a l ,

我一样很迷茫这些空间来自哪里。任何帮助将不胜感激。

来源

2012-08-22 Keith Miller

您正在尝试读取整个csv文件并将其存储为字符串？！ – TOC

您确定CSV未使用UTF-16编码（每个字符使用两个字节）吗？

这是您看到其他有效ASCII字符之间空格的最可能原因，因此请先尝试验证编码。

来源

2012-08-22 17:53:16

是的，这是我现在觉得愚蠢，我认为他们是空格，但他们实际上是空值感谢。 –

C读取csv文件

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