From 1b09c0814cd1e5d5a57be0c45c879fe0b146d220 Mon Sep 17 00:00:00 2001
From: James Pannacciulli <jpnc@jpnc.info>
Date: Mon, 12 Jun 2017 11:21:21 -0700
Subject: move sample examples out of config, show USAGE if no examples

---
 ariketa.sh | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

(limited to 'ariketa.sh')

diff --git a/ariketa.sh b/ariketa.sh
index 658588f..38ac242 100644
--- a/ariketa.sh
+++ b/ariketa.sh
@@ -27,6 +27,20 @@ _sourced? || {
 
 ARIKETA_DIR=$(_ariketa.dir)
 
+# load examples array
+source "${ARIKETA_DIR:?}/config/examples.sh"
+
+# if examples array has no content, bail with USAGE text
+(( ${#_examples[@]} )) || {
+    >&2 printf "**  %s\n" \
+        "" ""\
+        "$(declare -p _examples)"\
+        "_examples array needs content -- see 'configuration' below"\
+        "" ""
+    _ariketa.help
+    return $?
+}
+
 # preserve multiline commands as such in history
 shopt -s lithist
 
@@ -39,8 +53,5 @@ source "${ARIKETA_DIR:?}/lib/functions.sh"
 # set up bash macros to page through examples
 source "${ARIKETA_DIR:?}/lib/bindings.sh"
 
-# load examples array
-source "${ARIKETA_DIR:?}/config/examples.sh"
-
 # unset example index/directionality markers
 unset _I _D
-- 
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