Camel case and snake case: Difference between revisions
Nim solution
(Nim solution) |
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Line 1,101:
* We don't handle consecutive upper case characters (e.g. "newUIBox").
* We don't handle non-ASCII characters because of Lua's limited support for them ("ɛ" just happen to work here).
=={{header|Nim}}==
We use the same rules as those used by Wren's solution.
<syntaxhighlight lang=Nim>import std/[strformat, strutils, unicode]
const Delimiters = [Rune('_'), Rune('-'), Rune(' ')]
func toCamelCase(s: string): string =
let s = s.strip(chars = Whitespace)
var prev = Rune(0)
for rune in s.runes:
if prev in Delimiters:
result.add rune.toUpper
elif rune notin Delimiters:
result.add rune
prev = rune
func toSnakeCase(s: string): string =
var s= s.strip(chars = Whitespace).replace(' ', '_')
var idx = 0
var prev = Rune(0)
for rune in s.runes:
if rune.isUpper and idx > 0:
if prev notin Delimiters:
result.add '_'
result.add rune.toLower
else:
result.add rune
prev = rune
inc idx
const Strings = ["snakeCase", "snake_case", "variable_10_case",
"variable10Case", "ɛrgo rE tHis", "hurry-up-joe!",
"c://my-docs/happy_Flag-Day/12.doc", " spaces "]
echo center("### To snake case ###", 69)
for s in Strings:
echo &"{s:>33} → {s.toSnakeCase}"
echo()
echo center("### To camel case ###", 69)
for s in Strings:
echo &"{s:>33} → {s.toCamelCase}"
</syntaxhighlight>
{{out}}
<pre> ### To snake case ###
snakeCase → snake_case
snake_case → snake_case
variable_10_case → variable_10_case
variable10Case → variable10_case
ɛrgo rE tHis → ɛrgo_r_e_t_his
hurry-up-joe! → hurry-up-joe!
c://my-docs/happy_Flag-Day/12.doc → c://my-docs/happy_flag-day/12.doc
spaces → spaces
### To camel case ###
snakeCase → snakeCase
snake_case → snakeCase
variable_10_case → variable10Case
variable10Case → variable10Case
ɛrgo rE tHis → ɛrgoRETHis
hurry-up-joe! → hurryUpJoe!
c://my-docs/happy_Flag-Day/12.doc → c://myDocs/happyFlagDay/12.doc
spaces → spaces
</pre>
=={{header|Perl}}==
<syntaxhighlight lang="perl">#!/usr/bin/perl
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