Check panics in case of error.

Contains returns true if needle is in haystack.

ContainsPalabra returns true if needle is in haystack.

Limpiar returns a string without punctuation marks.

NewTexto returns a new texto object.

NewTextoRep returns a new texto object with @repeticiones correctly initialized.

StringToSlice returns a slice from a string.

Texto struct to store information about a text.