cwText.h/cpp : Added nextNonWhiteChar() functions and toText() functions.

cwText.cpp

@@ -4,6 +4,36 @@
 #include "cwCommonImpl.h"
 #include "cwMem.h"
 
+namespace cw
+{
+  const char* _nextWhiteChar( const char* s, bool eosFl )
+  {
+    if( s == nullptr )
+      return nullptr;
+
+    for(; *s; ++s )
+      if( isspace(*s) )
+        return s;
+
+    return eosFl ? s : nullptr;
+  }
+
+
+  const char* _nextNonWhiteChar( const char* s, bool eosFl )
+  {
+    if( s == nullptr )
+      return nullptr;
+
+    for(; *s; ++s )
+      if( !isspace(*s) )
+        return s;
+
+    return eosFl ? s : nullptr;
+  }
+
+  
+}
+
 
 unsigned cw::textLength( const char* s )
 { return s == nullptr ? 0 : strlen(s); }
@@ -23,3 +53,70 @@ int cw::textCompare( const char* s0, const char* s1, unsigned n)
 
   return strncmp(s0,s1,n);  
 }
+
+
+
+
+
+const char* cw::nextWhiteChar( const char* s )
+{ return _nextWhiteChar(s,false); }
+
+const char* cw::nextWhiteCharEOS( const char* s )
+{ return _nextWhiteChar(s,true); }
+
+const char* cw::nextNonWhiteChar( const char* s )
+{ return _nextNonWhiteChar(s,false); }
+
+const char* cw::nextNonWhiteCharEOS( const char* s )
+{ return _nextNonWhiteChar(s,true); }
+
+
+unsigned toText( char* buf, unsigned bufN, unsigned char v )
+{
+  if( bufN < 1 )
+    return 0;
+  buf[0] = v;
+  return 1;
+}
+
+unsigned toText( char* buf, unsigned bufN, char v )
+{
+  if( bufN < 1 )
+    return 0;
+  buf[0] = v;
+  return 1;
+}
+
+unsigned cw::toText( char* buf, unsigned bufN, bool v )
+{ return toText( buf, bufN, v ? "true" : "failse" );  }
+
+unsigned cw::toText( char* buf, unsigned bufN, unsigned short v )
+{ return snprintf(buf,bufN,"%i",v); }
+
+unsigned cw::toText( char* buf, unsigned bufN, short v )
+{ return snprintf(buf,bufN,"%i",v); }
+
+unsigned cw::toText( char* buf, unsigned bufN, unsigned int v  )
+{ return snprintf(buf,bufN,"%i",v); }
+
+unsigned cw::toText( char* buf, unsigned bufN, int v )
+{ return snprintf(buf,bufN,"%i",v); }
+
+unsigned cw::toText( char* buf, unsigned bufN, float v )
+{ return snprintf(buf,bufN,"%f",v); }
+
+unsigned cw::toText( char* buf, unsigned bufN, double v )
+{ return snprintf(buf,bufN,"%f",v); }
+
+unsigned cw::toText( char* buf, unsigned bufN, const char* v )
+{
+  unsigned sn = strlen(v) + 1;
+
+  // bufN must be greater than the length of v[]
+  if( sn >= bufN )
+    return 0;
+
+  strncpy(buf,v,sn);
+
+  return sn-1;
+}

cwText.h

@@ -4,11 +4,47 @@
 
 namespace cw
 {
+  // Return 0 if s is null.
   unsigned textLength( const char* s );
   
   // if both s0 and s1 are nullptr then a match is indicated
   int textCompare( const char* s0, const char* s1 );
   int textCompare( const char* s0, const char* s1, unsigned n);
+
+  // Return a pointer to the next white space char
+  // or nullptr if 's' is null are there are no whitespace char's.
+  const char* nextWhiteChar( const char* s );
+
+  
+  // Return a pointer to the next white space char,
+  // a pointer to the EOS if there are no white space char's,
+  // or nullptr if 's' is null.
+  const char* nextWhiteCharEOS( const char* s );
+
+  // Return a pointer to the next non-white space char
+  // or nullptr if 's' is null are there are no non-whitespace char's.
+  const char* nextNonWhiteChar( const char* s );
+
+  // Return a pointer to the next non-white space char,
+  // a pointer to the EOS if there are no non-white space char's,
+  // or nullptr if 's' is null.
+  const char* nextNonWhiteCharEOS( const char* s );
+
+
+  unsigned toText( char* buf, unsigned bufN, bool v );
+  unsigned toText( char* buf, unsigned bufN, unsigned char v );
+  unsigned toText( char* buf, unsigned bufN, char v );
+  unsigned toText( char* buf, unsigned bufN, unsigned short v );
+  unsigned toText( char* buf, unsigned bufN, short v );
+  unsigned toText( char* buf, unsigned bufN, unsigned int v  );
+  unsigned toText( char* buf, unsigned bufN, int v );
+  unsigned toText( char* buf, unsigned bufN, float v );
+  unsigned toText( char* buf, unsigned bufN, double v );
+  unsigned toText( char* buf, unsigned bufN, const char* v );
+
+
+
+  
 }
 
 #endif