[close #20] Require StringIO

schneems · schneems · commit 1edf5388ce22 · 2020-01-08T16:37:00.000-06:00
When the `stringio` library is not required then using the examples gives us this error:

```
NameError (uninitialized constant UnicodePlot::StyledPrinter::StringIO)
```

By adding this require to the top level library file we guarantee it is always loaded.
diff --git a/CHANGES.md b/CHANGES.md
@@ -1,3 +1,7 @@
+# Master (unreleased)
+
+- Fix error by requiring `stringio` (https://github.com/red-data-tools/unicode_plot.rb/pull/22)
+
 # 0.0.3
 
 - Add histogram support
diff --git a/lib/unicode_plot.rb b/lib/unicode_plot.rb
@@ -1,3 +1,5 @@
+require 'stringio'
+
 require 'unicode_plot/version'
 
 require 'unicode_plot/utils'

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,5 @@`
	`1`	`+require 'stringio'`
	`2`	`+`
`1`	`3`	`require 'unicode_plot/version'`
`2`	`4`
`3`	`5`	`require 'unicode_plot/utils'`