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cmText.h/c : Added cmTextTrimBegin(),cmTextTrimEnd() and cmTextTime().

master
kevin 10 years ago
parent
commit
84782a1fa8
2 changed files with 48 additions and 0 deletions
  1. 43
    0
      cmText.c
  2. 5
    0
      cmText.h

+ 43
- 0
cmText.c View File

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 }
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 }
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+cmChar_t* cmTextTrimBegin( cmChar_t* s )
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+{
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+  if( s==NULL || strlen(s) == 0 )
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+    return s;
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+
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+  cmChar_t* s0 = cmTextNextNonWhite(s);
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+
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+  // no non-white char's exist
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+  if( s0 == NULL )
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+  {
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+    s[0] = 0;
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+    return s;
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+  }
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+
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+  if( s0 != s )
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+    cmTextShrinkS(s,s,s0-s);
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+
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+  return s;
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+}
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+
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+cmChar_t* cmTextTrimEnd( cmChar_t* s )
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+{
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+  unsigned sn;
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+
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+  if( s==NULL || (sn = strlen(s))==0)
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+    return s;
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+
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+  cmChar_t* s0 = cmTextLastNonWhiteChar(s);
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+
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+  if(s0-s+1 < sn )
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+    s[s0-s+1] = 0;
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+
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+
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+  return s;
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+}
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+
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+cmChar_t* cmTextTrim( cmChar_t* s)
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+{
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+  cmTextTrimBegin(s);
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+  cmTextTrimEnd(s);
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+  return s;
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+}
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+
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 cmChar_t* cmTextExpandS( cmChar_t* s, const cmChar_t* t, unsigned tn )
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 cmChar_t* cmTextExpandS( cmChar_t* s, const cmChar_t* t, unsigned tn )
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 { return cmVOC_Expand(s,strlen(s)+1,t,tn); }
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 { return cmVOC_Expand(s,strlen(s)+1,t,tn); }

+ 5
- 0
cmText.h View File

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   // Remove the last n characters from s by inserting a '\0' at s[ strlen(s)-n ].
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   // Remove the last n characters from s by inserting a '\0' at s[ strlen(s)-n ].
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   void      cmTextClip(    cmChar_t* s, unsigned n );
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   void      cmTextClip(    cmChar_t* s, unsigned n );
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+  // Trim white space from the begining/end/both of a string
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+  cmChar_t* cmTextTrimBegin( cmChar_t* s );
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+  cmChar_t* cmTextTrimEnd( cmChar_t* s );
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+  cmChar_t* cmTextTrim( cmChar_t* );
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+
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   // Expand s by copying all bytes past t to t+tn.
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   // Expand s by copying all bytes past t to t+tn.
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   cmChar_t* cmTextExpandS( cmChar_t* s, const cmChar_t* t, unsigned tn );
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   cmChar_t* cmTextExpandS( cmChar_t* s, const cmChar_t* t, unsigned tn );
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