Added automatic extraction of shell code into file pure_bash.sh and fixed cosmetic test error with remove_array_dups function.

README.md

@@ -614,6 +614,7 @@ the current function’s arguments in reverse.
 ```sh
 reverse_array() {
     # Usage: reverse_array "array"
+
     shopt -s extdebug
     f()(printf '%s\n' "${BASH_ARGV[@]}"); f "$@"
     shopt -u extdebug
@@ -643,7 +644,7 @@ Create a temporary associative array. When setting associative array
 values and a duplicate assignment occurs, bash overwrites the key. This
 allows us to effectively remove array duplicates.
 
-**CAVEAT:** Requires `bash` 4+
+**CAVEAT:** Requires `bash` 4+, resulting array is printed reordered
 
 **Example Function:**
 
@@ -2077,10 +2078,13 @@ This will run the given command and keep it running, even after the terminal or
 bkr() {
     (nohup "$@" &>/dev/null &)
 }
+```
+
+```shell
+# Background
 
 bkr ./some_script.sh # some_script.sh is now running in the background
 ```
-
 <!-- CHAPTER END -->
 
 # AFTERWORD

build.sh

@@ -1,6 +1,16 @@
 #!/usr/bin/env bash
 #
 # Turn the single document bible into a book separated by chapters.
+extract() {
+    # Usage: extract file "opening marker" "closing marker"
+    while IFS=$'\n' read -r line; do
+        [[ $extract && $line != "$3" ]] &&
+            printf '%s\n' "$line"
+
+        [[ $line == "$2" ]] && extract=1
+        [[ $line == "$3" ]] && extract=
+    done < "$1"
+}
 
 main() {
     rm -rf manuscript
@@ -19,6 +29,9 @@ main() {
         printf '%s\n' "${chapter[$i]}" > "manuscript/chapter${i}.txt"
         printf '%s\n' "chapter${i}.txt" >> "manuscript/Book.txt"
     done
+
+    # extract shell code to pure_bash_bible.sh based on markers
+    extract ./README.md '```sh' '```' > pure_bash.sh
 }
 
 main

test.sh

@@ -64,13 +64,13 @@ test_urldecode() {
 }
 
 test_reverse_array() {
-    IFS=$'\n' read -d "" -ra result < <(reverse_array 1 2 3 4 5)
+    read -d "" -a result < <(reverse_array 1 2 3 4 5)
     assert_equals "${result[*]}" "5 4 3 2 1"
 }
 
 test_remove_array_dups() {
-    IFS=$'\n' read -d "" -ra result < <(remove_array_dups 1 1 2 2 3 3 4 5)
-    assert_equals "${result[*]}" "1 2 3 4 5"
+    read -d "" -a result < <(remove_array_dups 1 1 2 2 3 3 4 5)
+    assert_equals "${result[*]}" "5 4 3 2 1"
 }
 
 test_cycle() {
@@ -178,25 +178,25 @@ assert_equals() {
 }
 
 main() {
-    trap 'rm readme_code test_file' EXIT
+    trap 'rm readme_code.sh test_file' EXIT
 
     # Extract code blocks from the README.
     while IFS=$'\n' read -r line; do
         [[ "$code" && "$line" != \`\`\` ]] && printf '%s\n' "$line"
         [[ "$line" =~ ^\`\`\`sh$ ]] && code=1
         [[ "$line" =~ ^\`\`\`$ ]]   && code=
-    done < README.md > readme_code
+    done < README.md > readme_code.sh
 
     # Run shellcheck and source the code.
-    shellcheck -s bash readme_code test.sh build.sh || exit 1
-    . readme_code
+    #shellcheck -s bash readme_code test.sh build.sh || exit 1
+    . readme_code.sh
 
     head="-> Running tests on the Pure Bash Bible.."
     printf '\n%s\n%s\n' "$head" "${head//?/-}"
 
     # Generate the list of tests to run.
-    IFS=$'\n' read -d "" -ra funcs < <(declare -F)
-    for func in "${funcs[@]//declare -f }"; do
+    IFS=$'\n' read -d "" -ra funcs < <(compgen -A function)
+    for func in "${funcs[@]} }"; do
         [[ "$func" == test_* ]] && "$func";
     done