module Exceptionless:sig..end
Exceptionless counterparts for error-raising operations
val to_int : string -> int optionReturns the integer represented by the given string or
None if the string does not represent an integer.
val to_float : string -> float optionReturns the float represented by the given string or
None if the string does not represent a float.
val index : string -> char -> int optionindex s c returns Some p, the position of the leftmost
occurrence of character c in string s or
None if c does not occur in s.
val rindex : string -> char -> int optionrindex s c returns Some p, the position of the rightmost
occurrence of character c in string s or
None if c does not occur in s.
val index_from : string -> int -> char -> int optionSame as String.Exceptionless.index, but start
searching at the character position given as second argument.
index s c is equivalent to index_from s 0 c.
val rindex_from : string -> int -> char -> int optionSame as String.Exceptionless.rindex, but start
searching at the character position given as second argument.
rindex s c is equivalent to
rindex_from s (String.length s - 1) c.
val find : string -> string -> int optionfind s x returns Some i, the starting index of the first
occurrence of string x within string s, or None if x
is not a substring of s.
Note This implementation is optimized for short strings.
val find_from : string -> int -> string -> int optionfind_from s ofs x behaves as find s x but starts searching
at offset ofs. find s x is equivalent to find_from s 0 x.
val rfind : string -> string -> int optionrfind s x returns Some i, the starting index of the last occurrence
of string x within string s, or None if x is not a substring
of s.
Note This implementation is optimized for short strings.
val rfind_from : string -> int -> string -> int optionrfind_from s ofs x behaves as rfind s x but starts searching
at offset ofs. rfind s x is equivalent to
rfind_from s (String.length s - 1) x.
val split : string -> by:string -> (string * string) optionsplit s sep splits the string s between the first
occurrence of sep, or returns None if the separator
is not found.
val rsplit : string -> by:string -> (string * string) optionrsplit s sep splits the string s between the last
occurrence of sep, or returns None if the separator
is not found.