diff options
Diffstat (limited to 'lib/stdlib/src/epp.erl')
| -rw-r--r-- | lib/stdlib/src/epp.erl | 43 |
1 files changed, 29 insertions, 14 deletions
diff --git a/lib/stdlib/src/epp.erl b/lib/stdlib/src/epp.erl index 81b2431f40..e5ccaddbb4 100644 --- a/lib/stdlib/src/epp.erl +++ b/lib/stdlib/src/epp.erl @@ -33,7 +33,9 @@ %% Epp state record. -record(epp, {file, %Current file location, %Current location + delta, %Offset from Location (-file) name="", %Current file name + name2="", %-"-, modified by -file istk=[], %Ifdef stack sstk=[], %State stack path=[], %Include-path @@ -234,8 +236,8 @@ init_server(Pid, Name, File, AtLocation, Path, Pdm, Pre) -> case user_predef(Pdm, Ms0) of {ok,Ms1} -> epp_reply(Pid, {ok,self()}), - St = #epp{file=File, location=AtLocation, name=Name, - path=Path, macs=Ms1, pre_opened = Pre}, + St = #epp{file=File, location=AtLocation, delta=0, name=Name, + name2=Name, path=Path, macs=Ms1, pre_opened = Pre}, From = wait_request(St), enter_file_reply(From, Name, AtLocation, AtLocation), wait_req_scan(St); @@ -358,8 +360,8 @@ enter_file2(NewF, Pname, From, St, AtLocation, ExtraPath) -> enter_file_reply(From, Pname, Loc, AtLocation), Ms = dict:store({atom,'FILE'}, {none,[{string,Loc,Pname}]}, St#epp.macs), Path = St#epp.path ++ ExtraPath, - #epp{location=Loc,file=NewF, - name=Pname,sstk=[St|St#epp.sstk],path=Path,macs=Ms}. + #epp{file=NewF,location=Loc,name=Pname,delta=0, + sstk=[St|St#epp.sstk],path=Path,macs=Ms}. enter_file_reply(From, Name, Location, AtLocation) -> Attr = loc_attr(AtLocation), @@ -391,14 +393,23 @@ leave_file(From, St) -> case St#epp.sstk of [OldSt|Sts] -> close_file(St), - enter_file_reply(From, OldSt#epp.name, - OldSt#epp.location, OldSt#epp.location), + #epp{location=OldLoc, delta=Delta, name=OldName, + name2=OldName2} = OldSt, + CurrLoc = add_line(OldLoc, Delta), Ms = dict:store({atom,'FILE'}, - {none, - [{string,OldSt#epp.location, - OldSt#epp.name}]}, + {none,[{string,CurrLoc,OldName2}]}, St#epp.macs), - wait_req_scan(OldSt#epp{sstk=Sts,macs=Ms}); + NextSt = OldSt#epp{sstk=Sts,macs=Ms}, + enter_file_reply(From, OldName, CurrLoc, CurrLoc), + case OldName2 =:= OldName of + true -> + From; + false -> + NFrom = wait_request(NextSt), + enter_file_reply(NFrom, OldName2, OldLoc, + neg_line(CurrLoc)) + end, + wait_req_scan(NextSt); [] -> epp_reply(From, {eof,St#epp.location}), wait_req_scan(St) @@ -768,7 +779,8 @@ scan_file([{'(',_Llp},{string,_Ls,Name},{',',_Lc},{integer,_Li,Ln},{')',_Lrp}, Ms = dict:store({atom,'FILE'}, {none,[{string,1,Name}]}, St#epp.macs), Locf = loc(Tf), NewLoc = new_location(Ln, St#epp.location, Locf), - wait_req_scan(St#epp{name=Name,location=NewLoc,macs=Ms}); + Delta = abs(get_line(element(2, Tf)))-Ln + St#epp.delta, + wait_req_scan(St#epp{name2=Name,location=NewLoc,delta=Delta,macs=Ms}); scan_file(_Toks, Tf, From, St) -> epp_reply(From, {error,{loc(Tf),epp,{bad,file}}}), wait_req_scan(St). @@ -1132,6 +1144,9 @@ neg_line(L) -> abs_line(L) -> erl_scan:set_attribute(line, L, fun(Line) -> abs(Line) end). +add_line(L, Offset) -> + erl_scan:set_attribute(line, L, fun(Line) -> Line+Offset end). + start_loc(Line) when is_integer(Line) -> 1; start_loc({_Line, _Column}) -> @@ -1191,10 +1206,10 @@ interpret_file_attr([{attribute,Loc,file,{File,Line}}=Form | Forms], %% -include or -include_lib % true = L =:= Line, case Fs of - [_, Delta1, File | Fs1] -> % end of included file - [Form | interpret_file_attr(Forms, Delta1, [File | Fs1])]; + [_, File | Fs1] -> % end of included file + [Form | interpret_file_attr(Forms, 0, [File | Fs1])]; _ -> % start of included file - [Form | interpret_file_attr(Forms, 0, [File, Delta | Fs])] + [Form | interpret_file_attr(Forms, 0, [File | Fs])] end end; interpret_file_attr([Form0 | Forms], Delta, Fs) -> |