allow tab completion of directories at the "Go To Directory" prompt

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@3280 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -17,6 +17,11 @@ CVS code -
 	- Rework input parsing in the file browser to be more flexible.
 	  New function parse_browser_input(); changes to do_browser().
 	  (DLR)
+	- Allow tab completion of directories at the "Go To Directory"
+	  prompt.  Changes to do_browser(), do_insertfile(),
+	  do_writeout(), cwd_tab_completion(), input_tab(),
+	  get_prompt_string(), do_prompt(), search_init(), do_replace(),
+	  do_gotolinecolumn(), and do_int_spell_fix. (DLR)
 - browser.c:
   do_browser()
 	- Properly set currshortcut back to the file browser shortcut

src/browser.c

@@ -237,7 +237,11 @@ char *do_browser(char *path, DIR *dir)
 	    case NANO_GOTOLINE_KEY:
 		curs_set(1);
 
-		j = do_prompt(FALSE, gotodir_list, "",
+		j = do_prompt(TRUE,
+#ifndef DISABLE_TABCOMP
+			FALSE,
+#endif
+			gotodir_list, "",
 #ifndef NANO_TINY
 			NULL,
 #endif

src/files.c

@@ -713,6 +713,9 @@ void do_insertfile(
 #endif
 
 	i = do_prompt(TRUE,
+#ifndef DISABLE_TABCOMP
+		TRUE,
+#endif
 #ifndef NANO_TINY
 		execute ? extcmd_list :
 #endif
@@ -1752,7 +1755,11 @@ int do_writeout(bool exiting)
 	 * and we're at the "Write File" prompt, disable tab
 	 * completion. */
 	i = do_prompt(!ISSET(RESTRICTED) ||
-		openfile->filename[0] == '\0', writefile_list, ans,
+		openfile->filename[0] == '\0',
+#ifndef DISABLE_TABCOMP
+		TRUE,
+#endif
+		writefile_list, ans,
 #ifndef NANO_TINY
 		NULL, "%s%s%s", _(msg), formatstr, backupstr
 #else
@@ -2021,8 +2028,8 @@ char **username_tab_completion(const char *buf, size_t *num_matches,
 
 /* We consider the first buflen characters of buf for filename tab
  * completion. */
-char **cwd_tab_completion(const char *buf, size_t *num_matches, size_t
-	buflen)
+char **cwd_tab_completion(const char *buf, bool allow_files, size_t
+	*num_matches, size_t buflen)
 {
     char *dirname = mallocstrcpy(NULL, buf), *filename;
 #ifndef DISABLE_OPERATINGDIR
@@ -2072,6 +2079,8 @@ char **cwd_tab_completion(const char *buf, size_t *num_matches, size_t
     filenamelen = strlen(filename);
 
     while ((nextdir = readdir(dir)) != NULL) {
+	bool skip_match = FALSE;
+
 #ifdef DEBUG
 	fprintf(stderr, "Comparing \'%s\'\n", nextdir->d_name);
 #endif
@@ -2082,23 +2091,27 @@ char **cwd_tab_completion(const char *buf, size_t *num_matches, size_t
 	    /* Cool, found a match.  Add it to the list.  This makes a
 	     * lot more sense to me (Chris) this way... */
 
+	    char *tmp = charalloc(strlen(dirname) +
+		strlen(nextdir->d_name) + 1);
+	    sprintf(tmp, "%s%s", dirname, nextdir->d_name);
+
 #ifndef DISABLE_OPERATINGDIR
 	    /* ...unless the match exists outside the operating
-	     * directory, in which case just go to the next match.  To
-	     * properly do operating directory checking, we have to add
-	     * the directory name to the beginning of the proposed match
-	     * before we check it. */
-	    char *tmp2 = charalloc(strlen(dirname) +
-		strlen(nextdir->d_name) + 1);
-
-	    sprintf(tmp2, "%s%s", dirname, nextdir->d_name);
-	    if (check_operating_dir(tmp2, TRUE)) {
-		free(tmp2);
-		continue;
-	    }
-	    free(tmp2);
+	     * directory, in which case just go to the next match. */
+	    if (check_operating_dir(tmp, TRUE))
+		skip_match = TRUE;
 #endif
 
+	    /* ...or unless the match isn't a directory and allow_files
+	     * isn't set, in which case just go to the next match. */
+	    if (!allow_files && !is_dir(tmp)) {
+		skip_match = TRUE;
+
+	    free(tmp);
+
+	    if (skip_match)
+		continue;
+
 	    matches = (char **)nrealloc(matches, (*num_matches + 1) *
 		sizeof(char *));
 	    matches[*num_matches] = mallocstrcpy(NULL, nextdir->d_name);
@@ -2115,7 +2128,8 @@ char **cwd_tab_completion(const char *buf, size_t *num_matches, size_t
 
 /* Do tab completion.  place refers to how much the statusbar cursor
  * position should be advanced. */
-char *input_tab(char *buf, size_t *place, bool *lastwastab, bool *list)
+char *input_tab(char *buf, bool allow_files, size_t *place, bool
+	*lastwastab, bool *list)
 {
     size_t num_matches = 0;
     char **matches = NULL;
@@ -2136,7 +2150,8 @@ char *input_tab(char *buf, size_t *place, bool *lastwastab, bool *list)
 
     /* Match against files relative to the current working directory. */
     if (matches == NULL)
-	matches = cwd_tab_completion(buf, &num_matches, *place);
+	matches = cwd_tab_completion(buf, allow_files, &num_matches,
+		*place);
 
     if (num_matches <= 0)
 	beep();

src/prompt.c

@@ -897,7 +897,11 @@ bool need_statusbar_horizontal_update(size_t old_pww)
 
 /* Get a string of input at the statusbar prompt.  This should only be
  * called from do_prompt(). */
-int get_prompt_string(bool allow_tabs, const char *curranswer,
+int get_prompt_string(bool allow_tabs,
+#ifndef DISABLE_TABCOMP
+	bool allow_files,
+#endif
+	const char *curranswer,
 #ifndef NANO_TINY
 	filestruct **history_list,
 #endif
@@ -985,8 +989,8 @@ int get_prompt_string(bool allow_tabs, const char *curranswer,
 		} else
 #endif /* !NANO_TINY */
 		if (allow_tabs)
-		    answer = input_tab(answer, &statusbar_x, &tabbed,
-			list);
+		    answer = input_tab(answer, allow_files,
+			&statusbar_x, &tabbed, list);
 
 		update_statusbar_line(answer, statusbar_x);
 		break;
@@ -1090,9 +1094,14 @@ int get_prompt_string(bool allow_tabs, const char *curranswer,
  * curranswer is any editable text that we want to put up by default.
  *
  * The allow_tabs parameter indicates whether we should allow tabs to be
- * interpreted. */
-int do_prompt(bool allow_tabs, const shortcut *s, const char
-	*curranswer,
+ * interpreted.  The allow_files parameter indicates whether we should
+ * allow all files (as opposed to just directories) to be tab
+ * completed. */
+int do_prompt(bool allow_tabs,
+#ifndef DISABLE_TABCOMP
+	bool allow_files,
+#endif
+	const shortcut *s, const char *curranswer,
 #ifndef NANO_TINY
 	filestruct **history_list,
 #endif
@@ -1118,7 +1127,11 @@ int do_prompt(bool allow_tabs, const shortcut *s, const char
     va_end(ap);
     null_at(&prompt, actual_x(prompt, COLS - 4));
 
-    retval = get_prompt_string(allow_tabs, curranswer,
+    retval = get_prompt_string(allow_tabs,
+#ifndef DISABLE_TABCOMP
+	allow_files,
+#endif
+	curranswer,
 #ifndef NANO_TINY
 	history_list,
 #endif

src/proto.h

@@ -297,9 +297,10 @@ void free_chararray(char **array, size_t len);
 #ifndef DISABLE_TABCOMP
 char **username_tab_completion(const char *buf, size_t *num_matches,
 	size_t buflen);
-char **cwd_tab_completion(const char *buf, size_t *num_matches, size_t
-	buflen);
-char *input_tab(char *buf, size_t *place, bool *lastwastab, bool *list);
+char **cwd_tab_completion(const char *buf, bool allow_files, size_t
+	*num_matches, size_t buflen);
+char *input_tab(char *buf, bool allow_files, size_t *place, bool
+	*lastwastab, bool *list);
 #endif
 const char *tail(const char *foo);
 #if !defined(NANO_TINY) && defined(ENABLE_NANORC)
@@ -463,7 +464,11 @@ size_t get_statusbar_page_start(size_t start_col, size_t column);
 void update_statusbar_line(const char *curranswer, size_t index);
 void reset_statusbar_cursor(void);
 bool need_statusbar_horizontal_update(size_t old_pww);
-int get_prompt_string(bool allow_tabs, const char *curranswer,
+int get_prompt_string(bool allow_tabs,
+#ifndef DISABLE_TABCOMP
+	bool allow_files,
+#endif
+	const char *curranswer,
 #ifndef NANO_TINY
 	filestruct **history_list,
 #endif
@@ -472,8 +477,11 @@ int get_prompt_string(bool allow_tabs, const char *curranswer,
 	, bool *list
 #endif
 	);
-int do_prompt(bool allow_tabs, const shortcut *s, const char
-	*curranswer,
+int do_prompt(bool allow_tabs,
+#ifndef DISABLE_TABCOMP
+	bool allow_files,
+#endif
+	const shortcut *s, const char *curranswer,
 #ifndef NANO_TINY
 	filestruct **history_list,
 #endif

src/search.c

@@ -168,8 +168,11 @@ int search_init(bool replacing, bool use_answer)
 	buf = mallocstrcpy(NULL, "");
 
     /* This is now one simple call.  It just does a lot. */
-    i = do_prompt(FALSE, replacing ? replace_list : whereis_list,
-	backupstring,
+    i = do_prompt(FALSE,
+#ifndef DISABLE_TABCOMP
+	TRUE,
+#endif
+	replacing ? replace_list : whereis_list, backupstring,
 #ifndef NANO_TINY
 	&search_history,
 #endif
@@ -916,7 +919,11 @@ void do_replace(void)
 
     last_replace = mallocstrcpy(last_replace, "");
 
-    i = do_prompt(FALSE, replace_list_2, last_replace,
+    i = do_prompt(FALSE,
+#ifndef DISABLE_TABCOMP
+	TRUE,
+#endif
+	replace_list_2, last_replace,
 #ifndef NANO_TINY
 	&replace_history,
 #endif
@@ -980,7 +987,11 @@ void do_gotolinecolumn(ssize_t line, ssize_t column, bool use_answer,
 	char *ans = mallocstrcpy(NULL, answer);
 
 	/* Ask for it. */
-	int i = do_prompt(FALSE, gotoline_list, use_answer ? ans : "",
+	int i = do_prompt(FALSE,
+#ifndef DISABLE_TABCOMP
+		TRUE,
+#endif
+		gotoline_list, use_answer ? ans : "",
 #ifndef NANO_TINY
 		NULL,
 #endif

src/text.c

@@ -1668,7 +1668,11 @@ bool do_int_spell_fix(const char *word)
 	    do_replace_highlight(TRUE, exp_word);
 
 	    /* Allow all instances of the word to be corrected. */
-	    canceled = (do_prompt(FALSE, spell_list, word,
+	    canceled = (do_prompt(FALSE,
+#ifndef DISABLE_TABCOMP
+		TRUE,
+#endif
+		spell_list, word,
 #ifndef NANO_TINY
 		NULL,
 #endif