package ppxlib

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in-package search v0.2.0

Standard library for ppx rewriters

Install

Dune Dependency

github.com Readme Changelog MIT License Edit opam file Versions (38)

Authors

J

Jane Street Group, LLC

Maintainers

J

Jane Street developers

Sources

ppxlib-0.16.0.tbz

sha256=a2b7b86206b80f17df2cd30fcaf034023b00afbff6704cf6290374db7c6c5ed5

sha512=67db32012e06591b6fd45b211e1620db3815e6b586214a42cced0fd2e55339360a6f1fa05f4ce5688b994d6179e7d7adbdb08b01085d7c737f0af1d1fa3f7cc9

doc/ppxlib.stdppx/Stdppx/String/index.html

Module `Stdppx.String`

include module type of struct include Caml.StdLabels.String end

val length : string -> int

Return the length (number of characters) of the given string.

val get : string -> int -> char

String.get s n returns the character at index n in string s. You can also write s.[n] instead of String.get s n.

raises Invalid_argument
if n not a valid index in s.

val set : bytes -> int -> char -> unit

String.set s n c modifies byte sequence s in place, replacing the byte at index n with c. You can also write s.[n] <- c instead of String.set s n c.

raises Invalid_argument
if n is not a valid index in s.

deprecated
This is a deprecated alias of BytesLabels.set.

val create : int -> bytes

String.create n returns a fresh byte sequence of length n. The sequence is uninitialized and contains arbitrary bytes.

raises Invalid_argument
if n < 0 or n > Sys.max_string_length.

deprecated
This is a deprecated alias of BytesLabels.create.

val make : int -> char -> string

String.make n c returns a fresh string of length n, filled with the character c.

raises Invalid_argument
if n < 0 or n > Sys.max_string_length.

val init : int -> f:(int -> char) -> string

init n f returns a string of length n, with character i initialized to the result of f i.

raises Invalid_argument
if n < 0 or n > Sys.max_string_length.

since 4.02.0

val copy : string -> string

Return a copy of the given string.

deprecated

val sub : string -> pos:int -> len:int -> string

String.sub s start len returns a fresh string of length len, containing the substring of s that starts at position start and has length len.

raises Invalid_argument
if start and len do not designate a valid substring of s.

val fill : bytes -> pos:int -> len:int -> char -> unit

String.fill s start len c modifies byte sequence s in place, replacing len bytes by c, starting at start.

raises Invalid_argument
if start and len do not designate a valid substring of s.

deprecated
This is a deprecated alias of BytesLabels.fill.

val blit : 
  src:string ->
  src_pos:int ->
  dst:bytes ->
  dst_pos:int ->
  len:int ->
  unit

String.blit src srcoff dst dstoff len copies len bytes from the string src, starting at index srcoff, to byte sequence dst, starting at character number dstoff.

raises Invalid_argument
if srcoff and len do not designate a valid range of src, or if dstoff and len do not designate a valid range of dst.

val concat : sep:string -> string list -> string

String.concat sep sl concatenates the list of strings sl, inserting the separator string sep between each.

val iter : f:(char -> unit) -> string -> unit

String.iter f s applies function f in turn to all the characters of s. It is equivalent to f s.[0]; f s.[1]; ...; f s.[String.length s - 1]; ().

val iteri : f:(int -> char -> unit) -> string -> unit

Same as String.iter, but the function is applied to the index of the element as first argument (counting from 0), and the character itself as second argument.

since 4.00.0

val map : f:(char -> char) -> string -> string

String.map f s applies function f in turn to all the characters of s and stores the results in a new string that is returned.

since 4.00.0

val mapi : f:(int -> char -> char) -> string -> string

String.mapi f s calls f with each character of s and its index (in increasing index order) and stores the results in a new string that is returned.

since 4.02.0

val trim : string -> string

Return a copy of the argument, without leading and trailing whitespace. The characters regarded as whitespace are: ' ', '\012', '\n', '\r', and '\t'. If there is no leading nor trailing whitespace character in the argument, return the original string itself, not a copy.

since 4.00.0

val escaped : string -> string

Return a copy of the argument, with special characters represented by escape sequences, following the lexical conventions of OCaml. If there is no special character in the argument, return the original string itself, not a copy. Its inverse function is Scanf.unescaped.

val index : string -> char -> int

String.index s c returns the index of the first occurrence of character c in string s.

raises Not_found
if c does not occur in s.

val rindex : string -> char -> int

String.rindex s c returns the index of the last occurrence of character c in string s.

raises Not_found
if c does not occur in s.

val index_from : string -> int -> char -> int

String.index_from s i c returns the index of the first occurrence of character c in string s after position i. String.index s c is equivalent to String.index_from s 0 c.

raises Invalid_argument
if i is not a valid position in s.

raises Not_found
if c does not occur in s after position i.

val rindex_from : string -> int -> char -> int

String.rindex_from s i c returns the index of the last occurrence of character c in string s before position i+1. String.rindex s c is equivalent to String.rindex_from s (String.length s - 1) c.

raises Invalid_argument
if i+1 is not a valid position in s.

raises Not_found
if c does not occur in s before position i+1.

val contains : string -> char -> bool

String.contains s c tests if character c appears in the string s.

val contains_from : string -> int -> char -> bool

String.contains_from s start c tests if character c appears in s after position start. String.contains s c is equivalent to String.contains_from s 0 c.

raises Invalid_argument
if start is not a valid position in s.

val rcontains_from : string -> int -> char -> bool

String.rcontains_from s stop c tests if character c appears in s before position stop+1.

raises Invalid_argument
if stop < 0 or stop+1 is not a valid position in s.

val uppercase : string -> string

Return a copy of the argument, with all lowercase letters translated to uppercase, including accented letters of the ISO Latin-1 (8859-1) character set.

deprecated
Functions operating on Latin-1 character set are deprecated.

val lowercase : string -> string

Return a copy of the argument, with all uppercase letters translated to lowercase, including accented letters of the ISO Latin-1 (8859-1) character set.

deprecated
Functions operating on Latin-1 character set are deprecated.

val capitalize : string -> string

Return a copy of the argument, with the first character set to uppercase, using the ISO Latin-1 (8859-1) character set..

deprecated
Functions operating on Latin-1 character set are deprecated.

val uncapitalize : string -> string

Return a copy of the argument, with the first character set to lowercase, using the ISO Latin-1 (8859-1) character set..

deprecated
Functions operating on Latin-1 character set are deprecated.

val uppercase_ascii : string -> string

Return a copy of the argument, with all lowercase letters translated to uppercase, using the US-ASCII character set.

since 4.05.0

type t = string

An alias for the type of strings.

Iterators

val to_seq : t -> char Seq.t

Iterate on the string, in increasing index order. Modifications of the string during iteration will be reflected in the iterator.

since 4.07

val to_seqi : t -> (int * char) Seq.t

Iterate on the string, in increasing order, yielding indices along chars

since 4.07

val of_seq : char Seq.t -> t

Create a string from the generator

since 4.07

val is_empty : t -> bool

val prefix : string -> int -> string

val suffix : string -> int -> string

val drop_prefix : string -> int -> string

val drop_suffix : string -> int -> string

val is_prefix : string -> prefix:string -> bool

val is_suffix : string -> suffix:string -> bool

val exists : string -> f:(char -> bool) -> bool

val for_all : string -> f:(char -> bool) -> bool

val index_opt : string -> char -> int option

val rindex_opt : string -> char -> int option

val index_from_opt : string -> int -> char -> int option

val rindex_from_opt : string -> int -> char -> int option

val lsplit2 : string -> on:char -> (string * string) option

val capitalize_ascii : string -> string

val lowercase_ascii : string -> string

val uncapitalize_ascii : string -> string

val split_on_char : string -> sep:char -> string list

include Comparisons with type t := string

val compare : string -> string -> int

val equal : string -> string -> bool

val (=) : string -> string -> bool

val (<) : string -> string -> bool

val (>) : string -> string -> bool

val (<>) : string -> string -> bool

val (<=) : string -> string -> bool

val (>=) : string -> string -> bool

val min : string -> string -> string

val max : string -> string -> string

module Map : sig ... end

module Set : sig ... end