diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/stdlib/doc/src/epp.xml | 2 | ||||
| -rw-r--r-- | lib/stdlib/src/epp.erl | 44 |
2 files changed, 37 insertions, 9 deletions
diff --git a/lib/stdlib/doc/src/epp.xml b/lib/stdlib/doc/src/epp.xml index 488499581f..a57c7084fa 100644 --- a/lib/stdlib/doc/src/epp.xml +++ b/lib/stdlib/doc/src/epp.xml @@ -51,6 +51,7 @@ <func> <name name="open" arity="2"/> <name name="open" arity="3"/> + <name name="open" arity="4"/> <fsummary>Open a file for preprocessing</fsummary> <desc> <p>Opens a file for preprocessing.</p> @@ -75,6 +76,7 @@ </func> <func> <name name="parse_file" arity="3"/> + <name name="parse_file" arity="4"/> <fsummary>Preprocess and parse an Erlang source file</fsummary> <desc> <p>Preprocesses and parses an Erlang source file. diff --git a/lib/stdlib/src/epp.erl b/lib/stdlib/src/epp.erl index ccc14610d7..d958b0af2a 100644 --- a/lib/stdlib/src/epp.erl +++ b/lib/stdlib/src/epp.erl @@ -20,9 +20,9 @@ %% An Erlang code preprocessor. --export([open/2,open/3,open/5,close/1,format_error/1]). +-export([open/2,open/3,open/4, open/5,close/1,format_error/1]). -export([scan_erl_form/1,parse_erl_form/1,macro_defs/1]). --export([parse_file/1, parse_file/3]). +-export([parse_file/1, parse_file/3, parse_file/4]). -export([interpret_file_attribute/1]). -export([normalize_typed_record_fields/1,restore_typed_record_fields/1]). @@ -54,12 +54,14 @@ %% open(FileName, IncludePath) %% open(FileName, IncludePath, PreDefMacros) +%% open(FileName, StartLocation, IncludePath, PredefMacros) %% open(FileName, IoDevice, StartLocation, IncludePath, PreDefMacros) %% close(Epp) %% scan_erl_form(Epp) %% parse_erl_form(Epp) %% parse_file(Epp) %% parse_file(FileName, IncludePath, PreDefMacros) +%% parse_file(FileName, StartLocation, IncludePath, PreDefMacros) %% macro_defs(Epp) -spec open(FileName, IncludePath) -> @@ -81,8 +83,20 @@ open(Name, Path) -> ErrorDescriptor :: term(). open(Name, Path, Pdm) -> + open(Name, 1, Path, Pdm). + +-spec open(FileName, StartLocation, IncludePath, PredefMacros) -> + {'ok', Epp} | {'error', ErrorDescriptor} when + FileName :: file:name(), + StartLocation :: erl_scan:location(), + IncludePath :: [DirectoryName :: file:name()], + PredefMacros :: macros(), + Epp :: epp_handle(), + ErrorDescriptor :: term(). + +open(Name, StartLocation, Path, Pdm) -> Self = self(), - Epp = spawn(fun() -> server(Self, Name, Path, Pdm) end), + Epp = spawn(fun() -> server(Self, Name, StartLocation, Path, Pdm) end), epp_request(Epp). open(Name, File, StartLocation, Path, Pdm) -> @@ -178,7 +192,21 @@ format_error(E) -> file:format_error(E). OpenError :: file:posix() | badarg | system_limit. parse_file(Ifile, Path, Predefs) -> - case open(Ifile, Path, Predefs) of + parse_file(Ifile, 1, Path, Predefs). + +-spec parse_file(FileName, StartLocation, IncludePath, PredefMacros) -> + {'ok', [Form]} | {error, OpenError} when + FileName :: file:name(), + StartLocation :: erl_scan:location(), + IncludePath :: [DirectoryName :: file:name()], + Form :: erl_parse:abstract_form() | {'error', ErrorInfo} | {'eof',Line}, + PredefMacros :: macros(), + Line :: erl_scan:line(), + ErrorInfo :: erl_scan:error_info() | erl_parse:error_info(), + OpenError :: file:posix() | badarg | system_limit. + +parse_file(Ifile, StartLocation, Path, Predefs) -> + case open(Ifile, StartLocation, Path, Predefs) of {ok,Epp} -> Forms = parse_file(Epp), close(Epp), @@ -245,14 +273,12 @@ restore_typed_record_fields([{attribute,La,type,{{record,Record},Fields,[]}}| restore_typed_record_fields([Form|Forms]) -> [Form|restore_typed_record_fields(Forms)]. -%% server(StarterPid, FileName, Path, PreDefMacros) - -server(Pid, Name, Path, Pdm) -> +%% server(StarterPid, FileName, Location, Path, PreDefMacros) +server(Pid, Name, AtLocation, Path, Pdm) -> process_flag(trap_exit, true), case file:open(Name, [read]) of {ok,File} -> - Location = 1, - init_server(Pid, Name, File, Location, Path, Pdm, false); + init_server(Pid, Name, File, AtLocation, Path, Pdm, false); {error,E} -> epp_reply(Pid, {error,E}) end. |