package biotk

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Single line of text.

This module is adapted from biocaml 0.8 distributed under LGPL.

type t = private string

A line is simply a string, possibly empty, that does not contain a newline character. As the name suggests, usually such strings are obtained by reading a file line by line.

val empty : t
val parse_string : string -> t list

parse_string s splits s on newline characters, returning the resulting list of lines. If the final line ended with a newline, the last string of the list is empty.

val rightmost : string -> string option * t

rightmost s returns a pair whose right member is the longest suffix v of s that represents a line, while the possible remainder of s (minus the newline character) is represented in the left member. More formally, if v = s then the left member of the pair is None; otherwise it is Some u where s = u ^ "\n" ^ v.

val to_string : t -> string
val of_string_unsafe : string -> t

Return the given string without checking that it is a line. Useful for efficiency reasons if you're certain the given string is a line.

Standard String Operations

val is_empty : t -> bool
val lstrip : ?drop:(char -> bool) -> t -> t
val rstrip : ?drop:(char -> bool) -> t -> t
val strip : ?drop:(char -> bool) -> t -> t
val split : t -> on:char -> string list
val for_all : string -> f:(char -> bool) -> bool
val append : t -> t -> t
val concat : ?sep:char -> t list -> t
  • raises [Invalid_arg

    _] if sep = '\n'

S-Expressions

val t_of_sexp : Base.Sexp.t -> t
val sexp_of_t : t -> Base.Sexp.t
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