added -v/--version and <EO> command

* DEC TECO had an <EO> command.
  In contrast to DEC TECO's implementation, the value reported by
  <EO> encodes a major.minor.micro semantic version.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/main.c b/src/main.c
index a04d1d1..42e1520 100644
--- a/src/main.c
+++ b/src/main.c
@@ -108,6 +108,7 @@ teco_get_default_config_path(void)
 
 #endif
 
+static gboolean teco_show_version = FALSE;
 static gchar *teco_eval_macro = NULL;
 static gboolean teco_mung_file = FALSE;
 static gboolean teco_mung_profile = TRUE;
@@ -119,6 +120,8 @@ static gchar *
 teco_process_options(gchar ***argv)
 {
 	static const GOptionEntry option_entries[] = {
+		{"version", 'v', 0, G_OPTION_ARG_NONE, &teco_show_version,
+		 "Show version"},
 		{"eval", 'e', 0, G_OPTION_ARG_STRING, &teco_eval_macro,
 		 "Evaluate macro", "macro"},
 		{"mung", 'm', 0, G_OPTION_ARG_NONE, &teco_mung_file,
@@ -187,6 +190,11 @@ teco_process_options(gchar ***argv)
 		exit(EXIT_FAILURE);
 	}
 
+	if (teco_show_version) {
+		puts(PACKAGE_VERSION);
+		exit(EXIT_SUCCESS);
+	}
+
 	if ((*argv)[0] && !g_strcmp0((*argv)[1], "-S")) {
 		/* translate -S to --, this is always passed down */
 		(*argv)[1][1] = '-';