Sha256: cd1096645eac3b660fcf8ad9b2589c6ee0f646d59cb50344903484afca63960a
Contents?: true
Size: 1.23 KB
Versions: 21
Compression:
Stored size: 1.23 KB
Contents
class StringScanner
attr_reader :pos
attr_reader :matched
def initialize(string)
@string = string
@pos = 0
@matched = ''
@working = string
end
def scan(regex)
%x{
var regex = new RegExp('^' + regex.toString().substring(1, regex.toString().length - 1)),
result = regex.exec(#@working);
if (result == null) {
#@matched = '';
return nil;
}
else if (typeof(result) === 'object') {
#@pos += result[0].length;
#@working = #@working.substring(result[0].length);
#@matched = result[0];
return result[0];
}
else if (typeof(result) === 'string') {
#@pos += result.length;
#@working = #@working.substring(result.length);
return result;
}
else {
return nil;
}
}
end
def check(regex)
%x{
var regexp = new RegExp('^' + regex.toString().substring(1, regex.toString().length - 1)),
result = regexp.exec(#@working);
if (result == null) {
return this.matched = nil;
}
return this.matched = result[0];
}
end
def peek(length)
`#@working.substring(0, length)`
end
def eos?
`#@working.length === 0`
end
end
Version data entries
21 entries across 21 versions & 2 rubygems