Find chars fwd/back

* Add new method to Fl_Text_Buffer_1_3 to support finding word boundaries.
    Needed for correct identification of a callsign.

src/include/Fl_Text_Buffer_mod_1_3.H

@@ -617,7 +617,10 @@ public:
    */
   int search_backward(int startPos, const char* searchString, int* foundPos,
                       int matchCase = 0) const;
-  
+
+  int findchars_forward(int startPos, const char* searchChars, int* foundPos);
+  int findchars_backward(int startPos, const char* searchChars, int* foundPos);
+
   /** 
    Returns the primary selection.  
    */

src/widgets/FTextView.cxx

@@ -408,10 +408,10 @@ char* FTextBase::get_word(int x, int y, const char* nwchars, bool ontext)
 			return tbuf->selection_text();
 	}
 
-#if FLDIGI_FLTK_API_MAJOR == 1 && FLDIGI_FLTK_API_MINOR == 3
-	start = tbuf->word_start(p);
-	end = tbuf->word_end(p);
-#else
+//#if FLDIGI_FLTK_API_MAJOR == 1 && FLDIGI_FLTK_API_MINOR == 3
+//	start = tbuf->word_start(p);
+//	end = tbuf->word_end(p);
+//#else
 	string nonword = nwchars;
 	nonword.append(" \t\n");
 	if (!tbuf->findchars_backward(p, nonword.c_str(), &start))
@@ -420,7 +420,7 @@ char* FTextBase::get_word(int x, int y, const char* nwchars, bool ontext)
 		start++;
 	if (!tbuf->findchars_forward(p, nonword.c_str(), &end))
 		end = tbuf->length();
-#endif
+//#endif
 
 	if (ontext && (p < start || p >= end))
 		return 0;

src/widgets/Fl_Text_Buffer_mod_1_3.cxx

@@ -848,6 +848,35 @@ int Fl_Text_Buffer_mod::word_start(int pos) const {
   return pos;
 }
 
+/*
+** Search backwards in buffer for characters in "searchChars", starting
+** with the character BEFORE "startPos", returning the result in "foundPos"
+** returns 1 if found, 0 if not.
+*/
+int Fl_Text_Buffer_mod::findchars_backward( int startPos, const char *searchChars,
+                                     int *foundPos ) {
+  int pos = startPos;
+  const char *c;
+  char ch = 0;
+
+  if ( startPos == 0 ) {
+    *foundPos = 0;
+    return 0;
+  }
+  while ( pos > 0 ) {
+    ch = char_at(pos);
+    for ( c = searchChars; *c != '\0'; c++ ) {
+      if ( ch == *c ) {
+        *foundPos = pos;
+        return 1;
+      }
+    }
+    pos = prev_char(pos);
+  }
+  *foundPos = 0;
+  return 0;
+}
+
 
 /*
  Find the end of a word.
@@ -862,6 +891,31 @@ int Fl_Text_Buffer_mod::word_end(int pos) const {
   return pos;
 }
 
+/*
+** Search forwards in buffer for characters in "searchChars", starting
+** with the character "startPos", and returning the result in "foundPos"
+** returns 1 if found, 0 if not.
+*/
+int Fl_Text_Buffer_mod::findchars_forward( int startPos, const char *searchChars,
+                                    int *foundPos ) {
+  int pos = startPos;
+  const char *c;
+  char ch = 0;
+
+  while ( pos < length() ) {
+    ch = char_at(pos);
+    for ( c = searchChars; *c != '\0'; c++ ) {
+      if ( ch == *c ) {
+        *foundPos = pos;
+        return 1;
+      }
+    }
+    pos = next_char(pos);
+  }
+  *foundPos = length();
+  return 0;
+}
+
 
 /*
  Count the number of characters between two positions.