core: fix execution of multiple commands separated by newline when there are no spaces

For example typing this on core buffer:

/t1
/t2

was not executing the two commands but sent the text to the buffer instead.

This is because WeeChat thinks it's a path, and the newline should indicate
it's not (like a space before the next slash: "/t1 /t2" is a command, not a
path, but "/t1/t2" is considered a path).

1 files changed, 22 insertions, 0 deletions

diff --git a/tests/unit/core/test-core-string.cpp b/tests/unit/core/test-core-string.cpp
index 87ab40dd2..a74e0cca3 100644
--- a/tests/unit/core/test-core-string.cpp
+++ b/tests/unit/core/test-core-string.cpp
@@ -2490,6 +2490,7 @@ TEST(CoreString, InputForBuffer)
     POINTERS_EQUAL(NULL, string_input_for_buffer ("/"));
     POINTERS_EQUAL(NULL, string_input_for_buffer ("/abc"));
 
+    /* not commands */
     str = strdup ("");
     STRCMP_EQUAL(str, string_input_for_buffer (str));
     free (str);
@@ -2511,6 +2512,27 @@ TEST(CoreString, InputForBuffer)
     str = strdup ("//abc");
     STRCMP_EQUAL(str + 1, string_input_for_buffer (str));
     free (str);
+    str = strdup ("/abc/def /ghi");
+    STRCMP_EQUAL(str, string_input_for_buffer (str));
+    free (str);
+    str = strdup ("/abc/def /ghi");
+    STRCMP_EQUAL(str, string_input_for_buffer (str));
+    free (str);
+
+    /* commands */
+    POINTERS_EQUAL(NULL, string_input_for_buffer (NULL));
+    str = strdup ("/");
+    POINTERS_EQUAL(NULL, string_input_for_buffer (str));
+    free (str);
+    str = strdup ("/abc");
+    POINTERS_EQUAL(NULL, string_input_for_buffer (str));
+    free (str);
+    str = strdup ("/abc /def");
+    POINTERS_EQUAL(NULL, string_input_for_buffer (str));
+    free (str);
+    str = strdup ("/abc\n/def");
+    POINTERS_EQUAL(NULL, string_input_for_buffer (str));
+    free (str);
 
     /* test with custom command chars */
     config_file_option_set (config_look_command_chars, "öï", 1);