improve scripts to prevent some incorrect rule ID anchors.

build.sh

@@ -12,7 +12,7 @@ rm -rf ${BUILD_DIR}
 mkdir ${BUILD_DIR}
 docker pull asciidoctor/docker-asciidoctor
 
-./check_uniqueness_of_rule_ids.sh
+./check_rule_ids.sh
 
 docker run -v ${SCRIPT_DIR}:/documents/ asciidoctor/docker-asciidoctor asciidoctor -D /documents/output index.adoc
 docker run -v ${SCRIPT_DIR}:/documents/ asciidoctor/docker-asciidoctor asciidoctor-pdf -D /documents/output index.adoc

check_rule_ids.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+# This script checks if any rule id has been used more than once; can be also used as a pre-commit git hook ;)
+
+CONTENT_DIR=chapters
+
+duplicated_ids=`grep -r -o -E '\[#[0-9]+]' ${CONTENT_DIR} | sort |uniq -d`
+
+if [ -n "$duplicated_ids" ]; then
+    echo "Duplicated Rule IDs: `echo ${duplicated_ids} | tr -d '\n'`"
+    echo "Please make sure the Rule ID anchors are unique"
+    exit 1
+fi
+
+incorrect_ids=`grep -r -n -E '.*(\[[0-9]+\]|\[ +#?[0-9]+ +\]).*' ${CONTENT_DIR}`
+
+if [ -n "${incorrect_ids}" ]; then
+    echo -e "Incorrect Rule IDs:\n ${incorrect_ids}"
+    echo "Please make sure that the Rule ID anchors conform to '\[#[0-9]+\]'"
+    exit 1
+fi