re¶

replace/3/4¶

结构:

replace(Subject, RE, Replacement, Options) ->
         iodata() | unicode:charlist()

类型:

Option =
    anchored |
    global   |
    notbol   |
    noteol   |
    notempty |
    notempty_atstart |
    {offset, integer() >= 0} |
    {newline, NLSpec} |
    bsr_anycrlf |
    {match_limit, integer() >= 0} |
    {match_limit_recursion, integer() >= 0} |
    bsr_unicode |
    {return, ReturnType} |
    CompileOpt
NLSpec = cr | crlf | lf | anycrlf | any

实例:

$> re:replace("abcd","c","[&]",[{return,list}]).
"ab[c]d"
$> re:replace("abcd","c","[\\&]",[{return,list}]).
"ab[&]d"

run/2/3¶

实例:

1> re:run("xyzabc","(*COMMIT)abc",[{capture,all,list}]).
{match,["abc"]}
2> re:run("xyzabc","(*COMMIT)abc",[{capture,all,list},no_start_optimize]).
nomatch

36> re:run("Erlang","\\.").
nomatch
37> re:run("Erla.ng","\\.").
{match,[{4,1}]}
38> re:run("Erlang","\.").
{match,[{0,1}]}
39> re:run("Erla.ng","\.").
{match,[{0,1}]}

split/2/3¶

实例:

erl> re:split("Erlang","[ln]",[{return,list}]).
["Er","a","g"]
erl> re:split("Erlang","([ln])",[{return,list}]).
["Er","l","a","n","g"]

erl> re:split("Erlang","[n]",[{return,list}]).
["Erla","g"]
erl> re:split("Erlang","([n])",[{return,list}]).
["Erla","n","g"]

erl> re:split("Erlang","[lg]",[{return,list}]).
["Er","an",[]]

erl> re:split("er.lan.g","[.]",[{return,list}]).
["er","lan","g"]