bindings: rename 'cutwordleft' to 'chopwordleft', and similar for right

These bindable functions should not connote cutting, as they don't put
anything into the cutbuffer.

doc/nano.texi

@@ -1183,13 +1183,13 @@ current cursor position.
 Throws away the current line (or the marked region).
 (This function is bound by default to <Meta+Delete>.)
 
-@item cutwordleft
+@item chopwordleft
 Deletes from the cursor position to the beginning of the preceding word.
 (This function is bound by default to <Shift+Ctrl+Delete>.  If your terminal
 produces @code{^H} for <Ctrl+Backspace>, you can make <Ctrl+Backspace> delete
 the word to the left of the cursor by rebinding ^H to this function.)
 
-@item cutwordright
+@item chopwordright
 Deletes from the cursor position to the beginning of the next word.
 (This function is bound by default to <Ctrl+Delete>.)
 

doc/nanorc.5

@@ -524,13 +524,13 @@ current cursor position.
 Throws away the current line (or the marked region).
 (This function is bound by default to <Meta+Delete>.)
 .TP
-.B cutwordleft
+.B chopwordleft
 Deletes from the cursor position to the beginning of the preceding word.
 (This function is bound by default to <Shift+Ctrl+Delete>.  If your terminal
 produces \fB^H\fR for <Ctrl+Backspace>, you can make <Ctrl+Backspace> delete
 the word to the left of the cursor by rebinding ^H to this function.)
 .TP
-.B cutwordright
+.B chopwordright
 Deletes from the cursor position to the beginning of the next word.
 (This function is bound by default to <Ctrl+Delete>.)
 .TP

doc/sample.nanorc.in

@@ -270,7 +270,7 @@
 ## keycode, which is hard-bound to the backspace function.  So, if you
 ## normally use <Backspace> for backspacing and not ^H, you can make
 ## <Ctrl+Backspace> delete the word to the left of the cursor with:
-# bind ^H cutwordleft main
+# bind ^H chopwordleft main
 
 ## If you would like nano to have keybindings that are more "usual",
 ## such as ^O for Open, ^F for Find, ^H for Help, and ^Q for Quit,

src/global.c

@@ -1519,9 +1519,11 @@ sc *strtosc(const char *input)
 		s->func = do_indent;
 	else if (!strcasecmp(input, "unindent"))
 		s->func = do_unindent;
-	else if (!strcasecmp(input, "cutwordleft"))
+	else if (!strcasecmp(input, "chopwordleft") ||
+			 !strcasecmp(input, "cutwordleft"))  /* Deprecated; remove in 2020. */
 		s->func = do_cut_prev_word;
-	else if (!strcasecmp(input, "cutwordright"))
+	else if (!strcasecmp(input, "chopwordright") ||
+			 !strcasecmp(input, "cutwordright"))  /* Deprecated; remove in 2020. */
 		s->func = do_cut_next_word;
 	else if (!strcasecmp(input, "findbracket"))
 		s->func = do_find_bracket;