added check_macros file

document/core/util/check_macros.sh

@@ -0,0 +1,32 @@
+#!/bin/sh
+
+cd `dirname $0`/..
+
+FILES=`ls */*.rst`
+ERRORS=0
+
+for XREF in `grep xref util/macros.def`; do
+  if echo $XREF | grep -q "[|]"; then
+    MACRO=`echo $XREF | sed 's/^[^|]*[|]//g' | sed 's/[|].*$//g'`
+  elif echo $XREF | grep -q xref; then
+    FILE=`echo $XREF | sed 's/^.*xref{//g' | sed 's/}.*$//g'`.rst
+    LABEL=`echo $XREF | sed 's/^[^}]*}{//g' | sed 's/}.*$//g'`
+    TARGET=".. _$LABEL:"
+    if ! [ -f $FILE ] || ! grep -q "$TARGET" $FILE; then
+      ERRORS=1
+      echo Undefined cross-reference $FILE:$LABEL in macro "|$MACRO|"
+      if ! [ -f $FILE ]; then
+        echo ...non-existent file $FILE
+      fi
+      if grep -q "$TARGET" $FILES; then
+        echo ...defined in `grep -l "$TARGET" $FILES`
+      fi
+    fi
+  fi
+done
+
+if [ $ERRORS -eq 0 ]; then
+  echo All cross-references okay.
+else
+  exit 1;
+fi