Adding two new bindable functions that repeat the last search command

in a fixed direction without prompting.


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@5320 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

 2015-07-26  Benno Schulenberg  <bensberg@justemail.net>
 	* src/search.c (do_replace_loop): When doing regex replacements, find
-	 each zero-length match only once.  This fixes Savannah bug #45626.
+	each zero-length match only once.  This fixes Savannah bug #45626.
+	* src/global.c (shortcut_init, strtosc), src/search.c (do_findnext,
+	do_findprevious), doc/man/nanorc.5, doc/texinfo/nano.texi: Add two
+	new bindable functions, 'findnext' and 'findprevious', which repeat
+	the last search command in a fixed direction without prompting.
 
 2015-07-25  Benno Schulenberg  <bensberg@justemail.net>
 	* src/global.c (shortcut_init, strtosc), src/files.c (savefile),

doc/man/nanorc.5

@@ -394,7 +394,13 @@ Searches for text in the current buffer -- or for filenames matching
 a string in the current list in the file browser.
 .TP
 .B searchagain
-Repeats the last search command.
+Repeats the last search command without prompting.
+.TP
+.B findprevious
+As \fBsearchagain\fR, but always in the backward direction.
+.TP
+.B findnext
+As \fBsearchagain\fR, but always in the forward direction.
 .TP
 .B replace
 Interactively replaces text within the current buffer.

doc/texinfo/nano.texi

@@ -964,7 +964,13 @@ Searches for text in the current buffer --- or for filenames matching
 a string in the current list in the file browser
 
 @item searchagain
-Repeats the last search command.
+Repeats the last search command without prompting.
+
+@item findprevious
+As @code{searchagain}, but always in the backward direction.
+
+@item findnext
+As @code{searchagain}, but always in the forward direction.
 
 @item replace
 Interactively replaces text within the current buffer.

src/global.c

@@ -602,6 +602,8 @@ void shortcut_init(void)
 	N_("Suspend the editor (if suspend is enabled)");
 #ifndef NANO_TINY
     const char *nano_savefile_msg = N_("Save file without prompting");
+    const char *nano_findprev_msg = N_("Search next occurrence backward");
+    const char *nano_findnext_msg = N_("Search next occurrence forward");
     const char *nano_case_msg =
 	N_("Toggle the case sensitivity of the search");
     const char *nano_reverse_msg =
@@ -915,6 +917,11 @@ void shortcut_init(void)
 #ifndef NANO_TINY
     add_to_funcs(do_savefile, MMAIN,
 	N_("Save"), IFSCHELP(nano_savefile_msg), BLANKAFTER, NOVIEW);
+
+    add_to_funcs(do_findprevious, MMAIN,
+	N_("Previous"), IFSCHELP(nano_findprev_msg), TOGETHER, VIEW);
+    add_to_funcs(do_findnext, MMAIN,
+	N_("Next"), IFSCHELP(nano_findnext_msg), BLANKAFTER, VIEW);
 #endif
 
 #ifndef DISABLE_HISTORIES
@@ -1317,6 +1324,10 @@ sc *strtosc(char *input)
     else if (!strcasecmp(input, "searchagain") ||
 	     !strcasecmp(input, "research"))
 	s->scfunc = do_research;
+    else if (!strcasecmp(input, "findprevious"))
+	s->scfunc = do_findprevious;
+    else if (!strcasecmp(input, "findnext"))
+	s->scfunc = do_findnext;
 #endif
     else if (!strcasecmp(input, "replace"))
 	s->scfunc = do_replace;

src/proto.h

@@ -591,6 +591,10 @@ bool findnextstr(
 	const char *needle, size_t *needle_len);
 void findnextstr_wrap_reset(void);
 void do_search(void);
+#ifndef NANO_TINY
+void do_findprevious(void);
+void do_findnext(void);
+#endif
 #if !defined(NANO_TINY) || !defined(DISABLE_BROWSER)
 void do_research(void);
 #endif

src/search.c

@@ -474,6 +474,31 @@ void do_search(void)
     search_replace_abort();
 }
 
+#ifndef NANO_TINY
+/* Search in the backward direction for the next occurrence. */
+void do_findprevious(void)
+{
+    if ISSET(BACKWARDS_SEARCH)
+	do_research();
+    else {
+	SET(BACKWARDS_SEARCH);
+	do_research();
+	UNSET(BACKWARDS_SEARCH);
+    }
+}
+
+/* Search in the forward direction for the next occurrence. */
+void do_findnext(void)
+{
+    if ISSET(BACKWARDS_SEARCH) {
+	UNSET(BACKWARDS_SEARCH);
+	do_research();
+	SET(BACKWARDS_SEARCH);
+    } else
+	do_research();
+}
+#endif
+
 #if !defined(NANO_TINY) || !defined(DISABLE_BROWSER)
 /* Search for the last string without prompting. */
 void do_research(void)