Add entries for URL encoding and decoding
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README.md
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README.md
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@ -48,6 +48,8 @@ See something incorrectly described, buggy or outright wrong? Open an issue or s
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* [Strip first occurrence of pattern from string](#strip-first-occurrence-of-pattern-from-string)
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* [Strip pattern from start of string](#strip-pattern-from-start-of-string)
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* [Strip pattern from end of string](#strip-pattern-from-end-of-string)
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* [Percent-encode a string](#percent-encode-a-string)
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* [Decode a percent-encoded string](#decode-a-percent-encoded-string)
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* [Check if string contains a sub-string](#check-if-string-contains-a-sub-string)
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* [Check if string starts with sub-string](#check-if-string-starts-with-sub-string)
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* [Check if string ends with sub-string](#check-if-string-ends-with-sub-string)
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@ -483,6 +485,56 @@ $ rstrip "The Quick Brown Fox" " Fox"
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The Quick Brown
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```
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## Percent-encode a string
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**Example Function:**
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```sh
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urlencode() {
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# Usage: urlencode "string"
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local LC_ALL=C
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for (( i = 0; i < ${#1}; i++ )); do
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: "${1:i:1}"
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case "$_" in
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[a-zA-Z0-9.~_-])
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printf '%s' "$_"
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;;
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*)
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printf '%%%02X' "'$_"
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;;
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esac
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done
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printf '\n'
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}
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```
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**Example Usage:**
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```shell
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$ urlencode "https://github.com/dylanaraps/pure-bash-bible"
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https%3A%2F%2Fgithub.com%2Fdylanaraps%2Fpure-bash-bible
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```
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## Decode a percent-encoded string
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**Example Function:**
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```sh
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urldecode() {
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# Usage: urldecode "string"
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: "${1//+/ }"
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printf '%b\n' "${_//%/\\x}"
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}
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```
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**Example Usage:**
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```shell
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$ urldecode "https%3A%2F%2Fgithub.com%2Fdylanaraps%2Fpure-bash-bible"
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https://github.com/dylanaraps/pure-bash-bible
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```
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## Check if string contains a sub-string
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**Using a test:**
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@ -308,6 +308,55 @@ $ rstrip "The Quick Brown Fox" " Fox"
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The Quick Brown
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```
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## Percent-encode a string
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**Example Function:**
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```sh
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urlencode() {
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# Usage: urlencode "string"
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for (( i = 0; i < ${#1}; i++ )); do
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: "${1:i:1}"
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case "$_" in
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[a-zA-Z0-9.~_-])
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printf '%s' "$_"
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;;
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*)
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printf '%%%02X' "'$_"
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;;
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esac
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done
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printf '\n'
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}
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```
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**Example Usage:**
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```shell
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$ urlencode "https://github.com/dylanaraps/pure-bash-bible"
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https%3A%2F%2Fgithub.com%2Fdylanaraps%2Fpure-bash-bible
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```
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## Decode a percent-encoded string
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**Example Function:**
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```sh
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urldecode() {
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# Usage: urldecode "string"
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: "${1//+/ }"
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printf '%b\n' "${_//%/\\x}"
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}
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```
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**Example Usage:**
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```shell
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$ urldecode "https%3A%2F%2Fgithub.com%2Fdylanaraps%2Fpure-bash-bible"
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https://github.com/dylanaraps/pure-bash-bible
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```
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## Check if string contains a sub-string
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**Using a test:**
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@ -21,7 +21,7 @@ $ hello_world="value"
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$ var="world"
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# Declare a nameref.
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$ declare -n "ref=hello_$var"
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$ declare -n ref=hello_$var
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$ printf '%s\n' "$ref"
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value
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@ -31,7 +31,7 @@ value
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```shell
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$ var="world"
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$ declare hello_$var=value
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$ declare "hello_$var=value"
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$ printf '%s\n' "$hello_world"
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value
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```
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10
test.sh
10
test.sh
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@ -53,6 +53,16 @@ test_rstrip() {
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assert_equals "$result" "Hello"
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}
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test_urlencode() {
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result="$(urlencode "https://github.com/dylanaraps/pure-bash-bible")"
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assert_equals "$result" "https%3A%2F%2Fgithub.com%2Fdylanaraps%2Fpure-bash-bible"
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}
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test_urldecode() {
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result="$(urldecode "https%3A%2F%2Fgithub.com%2Fdylanaraps%2Fpure-bash-bible")"
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assert_equals "$result" "https://github.com/dylanaraps/pure-bash-bible"
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}
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test_reverse_array() {
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IFS=$'\n' read -d "" -ra result < <(reverse_array 1 2 3 4 5)
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assert_equals "${result[*]}" "5 4 3 2 1"
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