From a20725518fead2694f62fa2a7ae5e08ece7915bf Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Tue, 15 Sep 2020 20:54:54 +0200
Subject: support multiple arguments

---
 htgen | 38 ++++++++++++++++++++++++++------------
 1 file changed, 26 insertions(+), 12 deletions(-)

diff --git a/htgen b/htgen
index 78696be..ba6976b 100755
--- a/htgen
+++ b/htgen
@@ -4,18 +4,32 @@ set -euf
 
 Server=htgen
 
-## htgen --serve {{{
-case $# in
-  (1)
-    case "$1" in
-      (--serve)
-        HTGEN_HOST=${HTGEN_HOST-0.0.0.0}
-        HTGEN_PORT=${HTGEN_PORT-42380}
-        HTGEN_SCRIPT=${HTGEN_SCRIPT-:}
-        TCPSERVER_OPTS='-c 423 -t 2 -D'
-        echo "#### $Server $HTGEN_HOST:$HTGEN_PORT" >&2
-        exec tcpserver $TCPSERVER_OPTS "$HTGEN_HOST" "$HTGEN_PORT" "$0"
-    esac
+## parse arguments {{{
+action=handle_request
+while test $# -gt 0; do
+  case $1 in)
+    --serve) action=serve; shift; continue;;
+    *) echo "$0: error: bad argument: $1" >&2; exit 1;;
+  esac
+done
+## }}}
+## dispatch on $action {{
+case $action in
+  handle_request)
+    : # fall through for handling the request
+    ;;
+  serve)
+    HTGEN_HOST=${HTGEN_HOST-0.0.0.0}
+    HTGEN_PORT=${HTGEN_PORT-42380}
+    HTGEN_SCRIPT=${HTGEN_SCRIPT-:}
+    TCPSERVER_OPTS='-c 423 -t 2 -D'
+    echo "#### $Server $HTGEN_HOST:$HTGEN_PORT" >&2
+    exec tcpserver $TCPSERVER_OPTS "$HTGEN_HOST" "$HTGEN_PORT" "$0"
+    ;;
+  *)
+    echo "$0: error: bad action: $action" >&2
+    exit 2
+    ;;
 esac
 ## }}}
 
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