diff options
Diffstat (limited to 'lib/stdlib')
| -rw-r--r-- | lib/stdlib/doc/src/erl_parse.xml | 19 | ||||
| -rw-r--r-- | lib/stdlib/src/erl_parse.yrl | 1 | ||||
| -rw-r--r-- | lib/stdlib/test/erl_scan_SUITE.erl | 19 |
3 files changed, 36 insertions, 3 deletions
diff --git a/lib/stdlib/doc/src/erl_parse.xml b/lib/stdlib/doc/src/erl_parse.xml index bafc2e0746..56a7131821 100644 --- a/lib/stdlib/doc/src/erl_parse.xml +++ b/lib/stdlib/doc/src/erl_parse.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2011</year> + <year>1996</year><year>2013</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -167,6 +167,23 @@ <p>Converts the Erlang data structure <c><anno>Data</anno></c> into an abstract form of type <c><anno>AbsTerm</anno></c>. This is the inverse of <c>normalise/1</c>.</p> + <p><c>erl_parse:abstract(T)</c> is equivalent to + <c>erl_parse:abstract(T, 0)</c>.</p> + </desc> + </func> + <func> + <name name="abstract" arity="2"/> + <fsummary>Convert an Erlang term into an abstract form</fsummary> + <desc> + <p>Converts the Erlang data structure <c><anno>Data</anno></c> into an + abstract form of type <c><anno>AbsTerm</anno></c>.</p> + <p>The <c><anno>Line</anno></c> option is the line that will + be assigned to each node of the abstract form.</p> + <p>The <c><anno>Encoding</anno></c> option is used for + selecting which integer lists will be considered + as strings. The default is to use the encoding returned by + <seealso marker="epp#default_encoding/0"> + <c>epp:default_encoding/0</c></seealso></p> </desc> </func> </funcs> diff --git a/lib/stdlib/src/erl_parse.yrl b/lib/stdlib/src/erl_parse.yrl index 9ff25fcbc5..7145b0858f 100644 --- a/lib/stdlib/src/erl_parse.yrl +++ b/lib/stdlib/src/erl_parse.yrl @@ -887,6 +887,7 @@ abstract(T, Options) when is_list(Options) -> abstract(T, Line, Encoding). -define(UNICODE(C), + is_integer(C) andalso (C >= 0 andalso C < 16#D800 orelse C > 16#DFFF andalso C < 16#FFFE orelse C > 16#FFFF andalso C =< 16#10FFFF)). diff --git a/lib/stdlib/test/erl_scan_SUITE.erl b/lib/stdlib/test/erl_scan_SUITE.erl index 7e33166c6a..361abbb771 100644 --- a/lib/stdlib/test/erl_scan_SUITE.erl +++ b/lib/stdlib/test/erl_scan_SUITE.erl @@ -22,7 +22,7 @@ init_per_group/2,end_per_group/2]). -export([ error_1/1, error_2/1, iso88591/1, otp_7810/1, otp_10302/1, - otp_10990/1]). + otp_10990/1, otp_10992/1]). -import(lists, [nth/2,flatten/1]). -import(io_lib, [print/1]). @@ -61,7 +61,7 @@ end_per_testcase(_Case, Config) -> suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> - [{group, error}, iso88591, otp_7810, otp_10302, otp_10990]. + [{group, error}, iso88591, otp_7810, otp_10302, otp_10990, otp_10992]. groups() -> [{error, [], [error_1, error_2]}]. @@ -1130,6 +1130,21 @@ otp_10990(Config) when is_list(Config) -> {'EXIT',_} = (catch {foo, erl_scan:string([$",42.0,$"],1)}), ok. +otp_10992(doc) -> + "OTP-10992. List of floats to abstract format."; +otp_10992(suite) -> + []; +otp_10992(Config) when is_list(Config) -> + {cons,0,{float,0,42.0},{nil,0}} = + erl_parse:abstract([42.0], [{encoding,unicode}]), + {cons,0,{float,0,42.0},{nil,0}} = + erl_parse:abstract([42.0], [{encoding,utf8}]), + {cons,0,{integer,0,65},{cons,0,{float,0,42.0},{nil,0}}} = + erl_parse:abstract([$A,42.0], [{encoding,unicode}]), + {cons,0,{integer,0,65},{cons,0,{float,0,42.0},{nil,0}}} = + erl_parse:abstract([$A,42.0], [{encoding,utf8}]), + ok. + test_string(String, Expected) -> {ok, Expected, _End} = erl_scan:string(String), test(String). |