This commit then enables using, in code, run_command() while using hush 2021 as
parser.
It also enables the command run to be used by CLI user of hush 2021.

Signed-off-by: Francis Laniel <francis.lan...@amarulasolutions.com>
---
 common/cli.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/common/cli.c b/common/cli.c
index 090677f7a0..46afa34b98 100644
--- a/common/cli.c
+++ b/common/cli.c
@@ -47,8 +47,21 @@ int run_command(const char *cmd, int flag)
                hush_flags |= FLAG_CONT_ON_NEWLINE;
        return parse_string_outer(cmd, hush_flags);
 #else /* HUSH_2021_PARSER */
-       /* Not yet implemented. */
-       return 0;
+       /*
+        * Possible values for flags are the following:
+        * FLAG_EXIT_FROM_LOOP: This flags ensures we exit from loop in
+        * parse_and_run_stream() after first iteration while normal behavior,
+        * i.e. when called from cli_loop(), is to loop infinitely.
+        * FLAG_PARSE_SEMICOLON: Hush 2021 parses ';' and does not stop first
+        * time it sees one. So, I think we do not need this flag.
+        * FLAG_REPARSING: For the moment, I do not understand the goal of this
+        * flag.
+        * FLAG_CONT_ON_NEWLINE: This flag seems to be used to continue parsing
+        * even when reading '\n' when coming from run_command(). In this case,
+        * Hush 2021 reads until it finds '\0'. So, I think we do not need this
+        * flag.
+        */
+       return parse_string_outer(cmd, FLAG_EXIT_FROM_LOOP);
 #endif
 }
 
-- 
2.25.1

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