module Netstring_str:sig..end
Str syntax
 This module was written at a time when we had only the Str module
 for regular expressions. However, Str has an interface that does
 not work for multi-threaded programs, because the state of the module
 is visible to the outside. The module Netstring_str is similar to Str,
 but has a thread-compatible interface.
 For an explanation why we need this module, please read Regexp.
 .             matches every character but newline
 e*            matches e several times
 e+            matches e several times but at least once
 e?            matches e optionally
 e{m,n}        matches e at least m times and at most n times
 e1\|e2        matches e1 or e2
 [set]         matches the characters from set
 [^set]        matches the characters except from set
 \(...\)       group paranthesis
 \n            back reference (n is digit)
 ^             matches at beginning of line
 $             matches at end of line
 
 This is exactly what Str supports. Character classes
 are not implemented.
type 
typesplit_result =Str.split_result=
| | | Text of  | |||
| | | Delim of  | (* | Here we keep compatibility with Str | *) | 
type 
val regexp : string -> regexpval regexp_case_fold : string -> regexpval quote : string -> stringval regexp_string : string -> regexpval regexp_string_case_fold : string -> regexpval quote_set : string -> stringval string_match : regexp -> string -> int -> result optionNone if no match is found. Returns Some r on success,
 and r describes the match.val search_forward : regexp -> string -> int -> int * resultNot_found if no match could be found.
 Returns (p,r) when a match at position p is found,
 described by r.val search_backward : regexp -> string -> int -> int * resultNot_found if no match could be found.
 Returns (p,r) when a match at position p is found,
 described by r.val matched_string : result -> string -> stringstring_match or the search
 functions, and the result argument must be the corresponding
 result.val match_beginning : result -> intval match_end : result -> intval matched_group : result -> int -> string -> stringstring_match or the search
 functions, and the result argument must be the corresponding
 result.val group_beginning : result -> int -> intval group_end : result -> int -> intval global_replace : regexp -> string -> string -> stringglobal_replace re templ s: Replaces all matchings of re in
 s by templ.
 In templ one can refer to matched groups by the backslash notation:
 \1 refers to the first group, \2 to the second etc.
 \0 is the whole match. \\  is the backslash character.
val replace_first : regexp -> string -> string -> stringreplace_first re templ s: Replaces the first match of re in
 s by templ.
 In templ one can refer to matched groups by the backslash notation:
 \1 refers to the first group, \2 to the second etc.
 \0 is the whole match. \\  is the backslash character.
val global_substitute : regexp ->
       (result -> string -> string) -> string -> stringglobal_substitute re subst s: Applies the substitution function
 subst to all matchings of re in s, and returns the 
 transformed string. subst is called with the current result
 of the match and the whole string s.val substitute_first : regexp ->
       (result -> string -> string) -> string -> stringsubstitute_first re subst s: Applies the substitution function
 subst to the first matching of re in s, and returns the 
 transformed string. subst is called with the current result
 of the match and the whole string s.val split : regexp -> string -> string listval bounded_split : regexp -> string -> int -> string listn substrings, based on splitval split_delim : regexp -> string -> string listsplit, but occurrences of the delimiter at the beginning 
 and the end are returned as empty stringsval bounded_split_delim : regexp -> string -> int -> string listn substrings, based on split_delimval full_split : regexp -> string -> split_result listsplit_delim, but returns the delimiters in the resultval bounded_full_split : regexp -> string -> int -> split_result listn substrings, based on full_splitval string_before : string -> int -> stringn characters of a stringval string_after : string -> int -> stringn characters of a stringval first_chars : string -> int -> stringstring_beforeval last_chars : string -> int -> stringstring_aftermodule Debug:sig..end