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Added proper trim function

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Dylan Araps 2018-06-14 18:22:40 +10:00
parent 41643779bf
commit 09ae875000
1 changed files with 13 additions and 3 deletions
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README.md
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@ -36,7 +36,8 @@ scripts and not full blown utilities.
<!-- vim-markdown-toc GFM -->
* [Strings](#strings)
* [Trim white-space from string.](#trim-white-space-from-string)
* [Trim leading and trailing white-space from string.](#trim-leading-and-trailing-white-space-from-string)
* [Trim all white-space from string and truncate spaces.](#trim-all-white-space-from-string-and-truncate-spaces)
* [Split a string on a delimiter.](#split-a-string-on-a-delimiter)
* [Change a string to lowercase.](#change-a-string-to-lowercase)
* [Change a string to uppercase.](#change-a-string-to-uppercase)
@ -98,9 +99,18 @@ scripts and not full blown utilities.
## Strings
### Trim white-space from string.
### Trim leading and trailing white-space from string.
**NOTE**: This also truncates multiple spaces inside the string.
```sh
trim() {
# Usage: trim " example string "
: "${1#"${1%%[![:space:]]*}"}"
: "${_%"${_##*[![:space:]]}"}"
printf '%s\n' "$_"
}
```
### Trim all white-space from string and truncate spaces.
```sh
# shellcheck disable=SC2086,SC2048