`Console::Str`

console 0.2.0 · app/console/str.rb · 145 lines · view source

Console::Str -- string helpers that avoid Regexp.

mruby (the VM DragonRuby embeds) does not ship with the Regexp class, so none of the standard regular-expression methods are available. Everything in the console therefore uses these plain-string helpers instead.

def chop(str, suffix)

Remove a trailing suffix if present: chop('.rb', 'hello.rb') -> 'hello'

def split_on(str, chars)

Split on any of the characters in chars.

String#split treats its argument as a literal separator, so passing '-_' would split on that exact two-character sequence rather than on either character. Splits per character instead.

def lines(str)

Split into lines.

def digits?(str)

True when every character of str is a decimal digit and str is not empty. Replaces the /\A\d+\z/ idiom.

def quoted_value_after(str, prefix)

Find the value of a quoted constant assignment, e.g. title_of('TITLE = "Hello"') -> 'Hello'.

Written with explicit length-based slicing rather than ranges, because mruby's String#[] with a computed Range endpoint is not dependable.

def after_at(s, n)

s[n, s.length - n] without Range indexing.

def chomp_slash(str)

Drop trailing slashes: chomp_slash('carts/space/') -> 'carts/space'

def basename(str)

The last segment of a path: basename('carts/space') -> 'space'

A cart's directory doubles as its name, so this is what turns a path back into the module a cart is expected to define.

def capitalize(str)

Uppercase the first character: capitalize('hello') -> 'Hello'

def camel(str)

'hello-world' -> 'HelloWorld'

def snake(str)

'HelloWorld' -> 'hello_world'

def fit(str, width)

Pad/truncate to exactly width characters.

def blank?(str)

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