Created script to update the #define from rdp_settings fields.

Created	scripts/update-rdpSettings script to update the
rdpSettings #defines from the rdpSettings structure.

diff --git a/scripts/update-rdpSettings b/scripts/update-rdpSettings
new file mode 100755 (executable)
index 0000000..357edb9
--- /dev/null
+++ b/scripts/update-rdpSettings
@@ -0,0 +1,47 @@
+#!/bin/bash
+#
+
+# This scripts reads include/freerdp/settings.h and scans the
+# rdp_settings structure for all the fields until the /END of ABI
+# stable zone/ comment.  It then generates a set of #define one per
+# non-padding field, valued as the index of the field, taking into
+# account padding fields.  These field #defines are updated in that
+# same file.
+#
+# Usage:
+#
+#    cd $freerdp_source_directory
+#    scripts/update-rdpSettings
+
+file="include/freerdp/settings.h"
+set -eu
+(
+    set -eu
+    head='This is generated with a script parsing the rdpSettings data structure'
+    tail='FreeRDP Settings Data Structure'
+    sed -n -e "1,/${head}/p" < "${file}"
+    printf ' */\n\n'
+    (
+        set -eu
+        i=0
+        sed -e '1,/struct rdp_settings/d'  -e '/^{/d' -e '/};/,$d' \
+            | sed -e '/End of ABI stable zone/,$d' \
+            | sed -e '$a\
+x*/' \
+            | tr -d '\012' \
+            | sed -e  's-/\*\([^*]\|\*[^/]\)*\*/--g' -e 's/[   ][      ]*/ /g' \
+            | tr ';' '\012' \
+            | sed -e 's/^[     ]*\([A-Za-z_][A-Za-z_0-9]*[*    ]*\)*[*         ]\([A-Za-z_][A-Za-z_0-9]*\)/\2/' \
+                  -e 's/padding[0-9]*[         ]*\[\(.*\)\]/$((\1))/' \
+            | while read line ; do
+                  case "$line" in
+                  (*-*) i=$(( i + $(eval echo "$line") )) ;;
+                  (*)   printf '#define FreeRDP_%-50s (%4d)\n' "$line" "$i" ; i=$(( i + 1 )) ;;
+                  esac
+              done
+    ) < "${file}"
+    printf '\n\n/**\n'
+    sed -n -e '/'"$tail"'/,$p' < "${file}"
+) > "${file}.new" \
+    && cp -v "${file}" "${file}.old" \
+    && mv -v "${file}.new" "${file}"