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Diffstat (limited to 'lib/percept/src/percept_html.erl')
| -rw-r--r-- | lib/percept/src/percept_html.erl | 707 |
1 files changed, 0 insertions, 707 deletions
diff --git a/lib/percept/src/percept_html.erl b/lib/percept/src/percept_html.erl deleted file mode 100644 index a675227584..0000000000 --- a/lib/percept/src/percept_html.erl +++ /dev/null @@ -1,707 +0,0 @@ -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 2007-2016. All Rights Reserved. -%% -%% Licensed under the Apache License, Version 2.0 (the "License"); -%% you may not use this file except in compliance with the License. -%% You may obtain a copy of the License at -%% -%% http://www.apache.org/licenses/LICENSE-2.0 -%% -%% Unless required by applicable law or agreed to in writing, software -%% distributed under the License is distributed on an "AS IS" BASIS, -%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -%% See the License for the specific language governing permissions and -%% limitations under the License. -%% -%% %CopyrightEnd% - --module(percept_html). --export([page/3, - codelocation_page/3, - databases_page/3, - load_database_page/3, - processes_page/3, - concurrency_page/3, - process_info_page/3]). - --export([value2pid/1, - pid2value/1, - get_option_value/2, - join_strings_with/2]). - --include("percept.hrl"). --include_lib("kernel/include/file.hrl"). - - -%% API - -page(SessionID, Env, Input) -> - ok = mod_esi:deliver(SessionID, header()), - ok = mod_esi:deliver(SessionID, menu()), - ok = mod_esi:deliver(SessionID, overview_content(Env, Input)), - ok = mod_esi:deliver(SessionID, footer()). - -processes_page(SessionID, _, _) -> - ok = mod_esi:deliver(SessionID, header()), - ok = mod_esi:deliver(SessionID, menu()), - ok = mod_esi:deliver(SessionID, processes_content()), - ok = mod_esi:deliver(SessionID, footer()). - -concurrency_page(SessionID, Env, Input) -> - ok = mod_esi:deliver(SessionID, header()), - ok = mod_esi:deliver(SessionID, menu()), - ok = mod_esi:deliver(SessionID, concurrency_content(Env, Input)), - ok = mod_esi:deliver(SessionID, footer()). - -databases_page(SessionID, _, _) -> - ok = mod_esi:deliver(SessionID, header()), - ok = mod_esi:deliver(SessionID, menu()), - ok = mod_esi:deliver(SessionID, databases_content()), - ok = mod_esi:deliver(SessionID, footer()). - -codelocation_page(SessionID, Env, Input) -> - ok = mod_esi:deliver(SessionID, header()), - ok = mod_esi:deliver(SessionID, menu()), - ok = mod_esi:deliver(SessionID, codelocation_content(Env, Input)), - ok = mod_esi:deliver(SessionID, footer()). - -process_info_page(SessionID, Env, Input) -> - ok = mod_esi:deliver(SessionID, header()), - ok = mod_esi:deliver(SessionID, menu()), - ok = mod_esi:deliver(SessionID, process_info_content(Env, Input)), - ok = mod_esi:deliver(SessionID, footer()). - -load_database_page(SessionID, Env, Input) -> - ok = mod_esi:deliver(SessionID, header()), - - % Very dynamic page, handled differently - load_database_content(SessionID, Env, Input), - ok = mod_esi:deliver(SessionID, footer()). - - -%%% --------------------------- %%% -%%% Content pages %%% -%%% --------------------------- %%% - -overview_content(_Env, Input) -> - Query = httpd:parse_query(Input), - Min = get_option_value("range_min", Query), - Max = get_option_value("range_max", Query), - Width = 1200, - Height = 600, - TotalProfileTime = ?seconds( percept_db:select({system, stop_ts}), - percept_db:select({system, start_ts})), - RegisteredProcs = length(percept_db:select({information, procs})), - RegisteredPorts = length(percept_db:select({information, ports})), - - InformationTable = - "<table>" ++ - table_line(["Profile time:", TotalProfileTime]) ++ - table_line(["Processes:", RegisteredProcs]) ++ - table_line(["Ports:", RegisteredPorts]) ++ - table_line(["Min. range:", Min]) ++ - table_line(["Max. range:", Max]) ++ - "</table>", - - Header = " - <div id=\"content\"> - <div>" ++ InformationTable ++ "</div>\n - <form name=form_area method=POST action=/cgi-bin/percept_html/page> - <input name=data_min type=hidden value=" ++ term2html(float(Min)) ++ "> - <input name=data_max type=hidden value=" ++ term2html(float(Max)) ++ ">\n", - - - RangeTable = - "<table>"++ - table_line([ - "Min:", - "<input name=range_min value=" ++ term2html(float(Min)) ++">", - "<select name=\"graph_select\" onChange=\"select_image()\"> - <option disabled=true value=\""++ url_graph(Width, Height, Min, Max, []) ++"\" />Ports - <option disabled=true value=\""++ url_graph(Width, Height, Min, Max, []) ++"\" />Processes - <option value=\""++ url_graph(Width, Height, Min, Max, []) ++"\" />Ports & Processes - </select>", - "<input type=submit value=Update>" - ]) ++ - table_line([ - "Max:", - "<input name=range_max value=" ++ term2html(float(Max)) ++">", - "", - "<a href=/cgi-bin/percept_html/codelocation_page?range_min=" ++ - term2html(Min) ++ "&range_max=" ++ term2html(Max) ++ ">Code location</a>" - ]) ++ - "</table>", - - - MainTable = - "<table>" ++ - table_line([div_tag_graph()]) ++ - table_line([RangeTable]) ++ - "</table>", - - Footer = "</div></form>", - - Header ++ MainTable ++ Footer. - -div_tag_graph() -> - %background:url('/images/loader.gif') no-repeat center; - "<div id=\"percept_graph\" - onMouseDown=\"select_down(event)\" - onMouseMove=\"select_move(event)\" - onMouseUp=\"select_up(event)\" - - style=\" - background-size: 100%; - background-origin: content; - width: 100%; - position:relative; - \"> - - <div id=\"percept_areaselect\" - style=\"background-color:#ef0909; - position:relative; - visibility:hidden; - border-left: 1px solid #101010; - border-right: 1px solid #101010; - z-index:2; - width:40px; - height:40px;\"></div></div>". - --spec url_graph( - Widht :: non_neg_integer(), - Height :: non_neg_integer(), - Min :: float(), - Max :: float(), - Pids :: [pid()]) -> string(). - -url_graph(W, H, Min, Max, []) -> - "/cgi-bin/percept_graph/graph?range_min=" ++ term2html(float(Min)) - ++ "&range_max=" ++ term2html(float(Max)) - ++ "&width=" ++ term2html(float(W)) - ++ "&height=" ++ term2html(float(H)). - -%%% process_info_content - -process_info_content(_Env, Input) -> - Query = httpd:parse_query(Input), - Pid = get_option_value("pid", Query), - - - [I] = percept_db:select({information, Pid}), - ArgumentString = case I#information.entry of - {_, _, Arguments} -> lists:flatten( [term2html(Arg) ++ "<br>" || Arg <- Arguments]); - _ -> "" - end, - - TimeTable = html_table([ - [{th, ""}, - {th, "Timestamp"}, - {th, "Profile Time"}], - [{td, "Start"}, - term2html(I#information.start), - term2html(procstarttime(I#information.start))], - [{td, "Stop"}, - term2html(I#information.stop), - term2html(procstoptime(I#information.stop))] - ]), - - InfoTable = html_table([ - [{th, "Pid"}, term2html(I#information.id)], - [{th, "Name"}, term2html(I#information.name)], - [{th, "Entrypoint"}, mfa2html(I#information.entry)], - [{th, "Arguments"}, ArgumentString], - [{th, "Timetable"}, TimeTable], - [{th, "Parent"}, pid2html(I#information.parent)], - [{th, "Children"}, lists:flatten(lists:map(fun(Child) -> pid2html(Child) ++ " " end, I#information.children))] - ]), - - PidActivities = percept_db:select({activity, [{id, Pid}]}), - WaitingMfas = percept_analyzer:waiting_activities(PidActivities), - - TotalWaitTime = lists:sum( [T || {T, _, _} <- WaitingMfas] ), - - MfaTable = html_table([ - [{th, "percentage"}, - {th, "total"}, - {th, "mean"}, - {th, "stddev"}, - {th, "#recv"}, - {th, "module:function/arity"}]] ++ [ - [{td, image_string(percentage, [{width, 100}, {height, 10}, {percentage, Time/TotalWaitTime}])}, - {td, term2html(Time)}, - {td, term2html(Mean)}, - {td, term2html(StdDev)}, - {td, term2html(N)}, - {td, mfa2html(MFA)} ] || {Time, MFA, {Mean, StdDev, N}} <- WaitingMfas]), - - "<div id=\"content\">" ++ - InfoTable ++ "<br>" ++ - MfaTable ++ - "</div>". - -%%% concurrency content -concurrency_content(_Env, Input) -> - %% Get query - Query = httpd:parse_query(Input), - - %% Collect selected pids and generate id tags - Pids = [value2pid(PidValue) || {PidValue, Case} <- Query, Case == "on", PidValue /= "select_all"], - IDs = [{id, Pid} || Pid <- Pids], - - % FIXME: A lot of extra work here, redo - - %% Analyze activities and calculate area bounds - Activities = percept_db:select({activity, IDs}), - StartTs = percept_db:select({system, start_ts}), - Counts = [{Time, Y1 + Y2} || {Time, Y1, Y2} <- percept_analyzer:activities2count2(Activities, StartTs)], - {T0,_,T1,_} = percept_analyzer:minmax(Counts), - - % FIXME: End - - PidValues = [pid2value(Pid) || Pid <- Pids], - - %% Generate activity bar requests - ActivityBarTable = lists:foldl( - fun(Pid, Out) -> - ValueString = pid2value(Pid), - Out ++ - table_line([ - pid2html(Pid), - "<img onload=\"size_image(this, '" ++ - image_string_head("activity", [{"pid", ValueString}, {range_min, T0},{range_max, T1},{height, 10}], []) ++ - "')\" src=/images/white.png border=0 />" - ]) - end, [], Pids), - - %% Make pids request string - PidsRequest = join_strings_with(PidValues, ":"), - - "<div id=\"content\"> - <table cellspacing=0 cellpadding=0 border=0>" ++ - table_line([ - "", - "<img onload=\"size_image(this, '" ++ - image_string_head("graph", [{"pids", PidsRequest},{range_min, T0}, {range_max, T1}, {height, 400}], []) ++ - "')\" src=/images/white.png border=0 />" - ]) ++ - ActivityBarTable ++ - "</table></div>\n". - -processes_content() -> - Ports = percept_db:select({information, ports}), - UnsortedProcesses = percept_db:select({information, procs}), - SystemStartTS = percept_db:select({system, start_ts}), - SystemStopTS = percept_db:select({system, stop_ts}), - ProfileTime = ?seconds( SystemStopTS, - SystemStartTS), - Processes = lists:sort( - fun (A, B) -> - if - A#information.id > B#information.id -> true; - true -> false - end - end, UnsortedProcesses), - - ProcsHtml = lists:foldl( - fun (I, Out) -> - StartTime = procstarttime(I#information.start), - EndTime = procstoptime(I#information.stop), - Prepare = - table_line([ - "<input type=checkbox name=" ++ pid2value(I#information.id) ++ ">", - pid2html(I#information.id), - image_string(proc_lifetime, [ - {profiletime, ProfileTime}, - {start, StartTime}, - {"end", term2html(float(EndTime))}, - {width, 100}, - {height, 10}]), - mfa2html(I#information.entry), - term2html(I#information.name), - pid2html(I#information.parent) - ]), - [Prepare|Out] - end, [], Processes), - - PortsHtml = lists:foldl( - fun (I, Out) -> - StartTime = procstarttime(I#information.start), - EndTime = procstoptime(I#information.stop), - Prepare = - table_line([ - "", - pid2html(I#information.id), - image_string(proc_lifetime, [ - {profiletime, ProfileTime}, - {start, StartTime}, - {"end", term2html(float(EndTime))}, - {width, 100}, - {height, 10}]), - mfa2html(I#information.entry), - term2html(I#information.name), - pid2html(I#information.parent) - ]), - [Prepare|Out] - end, [], Ports), - - Selector = "<table>" ++ - table_line([ - "<input onClick='selectall()' type=checkbox name=select_all>Select all"]) ++ - table_line([ - "<input type=submit value=Compare>"]) ++ - "</table>", - - if - length(ProcsHtml) > 0 -> - ProcsHtmlResult = - "<tr><td><b>Processes</b></td></tr> - <tr><td> - <table width=700 cellspacing=0 border=0> - <tr> - <td align=middle width=40><b>Select</b></td> - <td align=middle width=40><b>Pid</b></td> - <td><b>Lifetime</b></td> - <td><b>Entrypoint</b></td> - <td><b>Name</b></td> - <td><b>Parent</b></td> - </tr>" ++ - lists:flatten(ProcsHtml) ++ - "</table> - </td></tr>"; - true -> - ProcsHtmlResult = "" - end, - if - length(PortsHtml) > 0 -> - PortsHtmlResult = " - <tr><td><b>Ports</b></td></tr> - <tr><td> - <table width=700 cellspacing=0 border=0> - <tr> - <td align=middle width=40><b>Select</b></td> - <td align=left width=40><b>Pid</b></td> - <td><b>Lifetime</b></td> - <td><b>Entrypoint</b></td> - <td><b>Name</b></td> - <td><b>Parent</b></td> - </tr>" ++ - lists:flatten(PortsHtml) ++ - "</table> - </td></tr>"; - true -> - PortsHtmlResult = "" - end, - - Right = "<div>" - ++ Selector ++ - "</div>\n", - - Middle = "<div id=\"content\"> - <table>" ++ - ProcsHtmlResult ++ - PortsHtmlResult ++ - "</table>" ++ - Right ++ - "</div>\n", - - "<form name=process_select method=POST action=/cgi-bin/percept_html/concurrency_page>" ++ - Middle ++ - "</form>". - -procstarttime(TS) -> - case TS of - undefined -> 0.0; - TS -> ?seconds(TS,percept_db:select({system, start_ts})) - end. - -procstoptime(TS) -> - case TS of - undefined -> ?seconds( percept_db:select({system, stop_ts}), - percept_db:select({system, start_ts})); - TS -> ?seconds(TS, percept_db:select({system, start_ts})) - end. - -databases_content() -> - "<div id=\"content\"> - <form name=load_percept_file method=post action=/cgi-bin/percept_html/load_database_page> - <center> - <table> - <tr><td>Enter file to analyse:</td><td><input type=hidden name=path /></td></tr> - <tr><td><input type=file name=file size=40 /></td><td><input type=submit value=Load onClick=\"path.value = file.value;\" /></td></tr> - </table> - </center> - </form> - </div>". - -load_database_content(SessionId, _Env, Input) -> - Query = httpd:parse_query(Input), - {_,{_,Path}} = lists:keysearch("file", 1, Query), - {_,{_,File}} = lists:keysearch("path", 1, Query), - Filename = filename:join(Path, File), - % Check path/file/filename - - ok = mod_esi:deliver(SessionId, "<div id=\"content\">"), - case file:read_file_info(Filename) of - {ok, _} -> - Content = "<center> - Parsing: " ++ Filename ++ "<br> - </center>", - ok = mod_esi:deliver(SessionId, Content), - case percept:analyze(Filename) of - {error, Reason} -> - ok = mod_esi:deliver(SessionId, error_msg("Analyze" ++ term2html(Reason))); - _ -> - Complete = "<center><a href=\"/cgi-bin/percept_html/page\">View</a></center>", - ok = mod_esi:deliver(SessionId, Complete) - end; - {error, Reason} -> - ok = mod_esi:deliver(SessionId, error_msg("File" ++ term2html(Reason))) - end, - ok = mod_esi:deliver(SessionId, "</div>"). - -codelocation_content(_Env, Input) -> - Query = httpd:parse_query(Input), - Min = get_option_value("range_min", Query), - Max = get_option_value("range_max", Query), - StartTs = percept_db:select({system, start_ts}), - TsMin = percept_analyzer:seconds2ts(Min, StartTs), - TsMax = percept_analyzer:seconds2ts(Max, StartTs), - Acts = percept_db:select({activity, [{ts_min, TsMin}, {ts_max, TsMax}]}), - - Secs = [timer:now_diff(A#activity.timestamp,StartTs)/1000 || A <- Acts], - Delta = cl_deltas(Secs), - Zip = lists:zip(Acts, Delta), - Table = html_table([ - [{th, "delta [ms]"}, - {th, "time [ms]"}, - {th, " pid "}, - {th, "activity"}, - {th, "module:function/arity"}, - {th, "#runnables"}]] ++ [ - [{td, term2html(D)}, - {td, term2html(timer:now_diff(A#activity.timestamp,StartTs)/1000)}, - {td, pid2html(A#activity.id)}, - {td, term2html(A#activity.state)}, - {td, mfa2html(A#activity.where)}, - {td, term2html(A#activity.runnable_count)}] || {A, D} <- Zip ]), - - "<div id=\"content\">" ++ - Table ++ - "</div>". - -cl_deltas([]) -> []; -cl_deltas(List) -> cl_deltas(List, [0.0]). -cl_deltas([_], Out) -> lists:reverse(Out); -cl_deltas([A,B|Ls], Out) -> cl_deltas([B|Ls], [B - A | Out]). - -%%% --------------------------- %%% -%%% Utility functions %%% -%%% --------------------------- %%% - -%% Should be in string stdlib? - -join_strings(Strings) -> - lists:flatten(Strings). - --spec join_strings_with(Strings :: [string()], Separator :: string()) -> string(). - -join_strings_with([S1, S2 | R], S) -> - join_strings_with([join_strings_with(S1,S2,S) | R], S); -join_strings_with([S], _) -> - S. -join_strings_with(S1, S2, S) -> - join_strings([S1,S,S2]). - -%%% Generic erlang2html - --spec html_table(Rows :: [[string() | {'td' | 'th', string()}]]) -> string(). - -html_table(Rows) -> "<table>" ++ html_table_row(Rows) ++ "</table>". - -html_table_row(Rows) -> html_table_row(Rows, odd). -html_table_row([], _) -> ""; -html_table_row([Row|Rows], odd ) -> "<tr class=\"odd\">" ++ html_table_data(Row) ++ "</tr>" ++ html_table_row(Rows, even); -html_table_row([Row|Rows], even) -> "<tr class=\"even\">" ++ html_table_data(Row) ++ "</tr>" ++ html_table_row(Rows, odd ). - -html_table_data([]) -> ""; -html_table_data([{td, Data}|Row]) -> "<td>" ++ Data ++ "</td>" ++ html_table_data(Row); -html_table_data([{th, Data}|Row]) -> "<th>" ++ Data ++ "</th>" ++ html_table_data(Row); -html_table_data([Data|Row]) -> "<td>" ++ Data ++ "</td>" ++ html_table_data(Row). - - - - --spec table_line(Table :: [any()]) -> string(). - -table_line(List) -> table_line(List, ["<tr>"]). -table_line([], Out) -> lists:flatten(lists:reverse(["</tr>\n"|Out])); -table_line([Element | Elements], Out) when is_list(Element) -> - table_line(Elements, ["<td>" ++ Element ++ "</td>" |Out]); -table_line([Element | Elements], Out) -> - table_line(Elements, ["<td>" ++ term2html(Element) ++ "</td>"|Out]). - --spec term2html(any()) -> string(). - -term2html(Term) when is_float(Term) -> lists:flatten(io_lib:format("~.4f", [Term])); -term2html(Term) -> lists:flatten(io_lib:format("~p", [Term])). - --spec mfa2html(MFA :: {atom(), atom(), list() | integer()}) -> string(). - -mfa2html({Module, Function, Arguments}) when is_list(Arguments) -> - lists:flatten(io_lib:format("~p:~p/~p", [Module, Function, length(Arguments)])); -mfa2html({Module, Function, Arity}) when is_integer(Arity) -> - lists:flatten(io_lib:format("~p:~p/~p", [Module, Function, Arity])); -mfa2html(_) -> - "undefined". - --spec pid2html(Pid :: pid() | port()) -> string(). - -pid2html(Pid) when is_pid(Pid) -> - PidString = term2html(Pid), - PidValue = pid2value(Pid), - "<a href=\"/cgi-bin/percept_html/process_info_page?pid="++PidValue++"\">"++PidString++"</a>"; -pid2html(Pid) when is_port(Pid) -> - term2html(Pid); -pid2html(_) -> - "undefined". - --spec image_string(Request :: string()) -> string(). - -image_string(Request) -> - "<img border=0 src=\"/cgi-bin/percept_graph/" ++ - Request ++ - " \">". - --spec image_string(atom() | string(), list()) -> string(). - -image_string(Request, Options) when is_atom(Request), is_list(Options) -> - image_string(image_string_head(erlang:atom_to_list(Request), Options, [])); -image_string(Request, Options) when is_list(Options) -> - image_string(image_string_head(Request, Options, [])). - -image_string_head(Request, [{Type, Value} | Opts], Out) when is_atom(Type), is_number(Value) -> - Opt = join_strings(["?",term2html(Type),"=",term2html(Value)]), - image_string_tail(Request, Opts, [Opt|Out]); -image_string_head(Request, [{Type, Value} | Opts], Out) -> - Opt = join_strings(["?",Type,"=",Value]), - image_string_tail(Request, Opts, [Opt|Out]). - -image_string_tail(Request, [], Out) -> - join_strings([Request | lists:reverse(Out)]); -image_string_tail(Request, [{Type, Value} | Opts], Out) when is_atom(Type), is_number(Value) -> - Opt = join_strings(["&",term2html(Type),"=",term2html(Value)]), - image_string_tail(Request, Opts, [Opt|Out]); -image_string_tail(Request, [{Type, Value} | Opts], Out) -> - Opt = join_strings(["&",Type,"=",Value]), - image_string_tail(Request, Opts, [Opt|Out]). - - -%%% percept conversions - --spec pid2value(Pid :: pid()) -> string(). - -pid2value(Pid) -> - String = lists:flatten(io_lib:format("~p", [Pid])), - lists:sublist(String, 2, erlang:length(String)-2). - --spec value2pid(Value :: string()) -> pid(). - -value2pid(Value) -> - String = lists:flatten("<" ++ Value ++ ">"), - erlang:list_to_pid(String). - - -%%% get value - --spec get_option_value(Option :: string(), Options :: [{string(),any()}]) -> - {'error', any()} | boolean() | pid() | [pid()] | number(). - -get_option_value(Option, Options) -> - case catch get_option_value0(Option, Options) of - {'EXIT', Reason} -> {error, Reason}; - Value -> Value - end. - -get_option_value0(Option, Options) -> - case lists:keysearch(Option, 1, Options) of - false -> get_default_option_value(Option); - {value, {Option, _Value}} when Option == "fillcolor" -> true; - {value, {Option, Value}} when Option == "pid" -> value2pid(Value); - {value, {Option, Value}} when Option == "pids" -> - [value2pid(PidValue) || PidValue <- string:tokens(Value,":")]; - {value, {Option, Value}} -> get_number_value(Value); - _ -> {error, undefined} - end. - -get_default_option_value(Option) -> - case Option of - "fillcolor" -> false; - "range_min" -> float(0.0); - "pids" -> []; - "range_max" -> - Acts = percept_db:select({activity, []}), - #activity{ timestamp = Start } = hd(Acts), - #activity{ timestamp = Stop } = hd(lists:reverse(Acts)), - ?seconds(Stop,Start); - "width" -> 700; - "height" -> 400; - _ -> {error, {undefined_default_option, Option}} - end. - --spec get_number_value(string()) -> number() | {'error', 'illegal_number'}. - -get_number_value(Value) -> - % Try float - case string:to_float(Value) of - {error, no_float} -> - % Try integer - case string:to_integer(Value) of - {error, _} -> {error, illegal_number}; - {Integer, _} -> Integer - end; - {error, _} -> {error, illegal_number}; - {Float, _} -> Float - end. - -%%% --------------------------- %%% -%%% html prime functions %%% -%%% --------------------------- %%% - -header() -> header([]). -header(HeaderData) -> - "Content-Type: text/html\r\n\r\n" ++ - "<html> - <head> - <meta http-equiv=\"Content-Type\" content=\"text/html; charset=iso-8859-1\"> - <title>percept</title> - <link href=\"/css/percept.css\" rel=\"stylesheet\" type=\"text/css\"> - <script type=\"text/javascript\" src=\"/javascript/percept_error_handler.js\"></script> - <script type=\"text/javascript\" src=\"/javascript/percept_select_all.js\"></script> - <script type=\"text/javascript\" src=\"/javascript/percept_area_select.js\"></script> - " ++ HeaderData ++" - </head> - <body onLoad=\"load_image()\"> - <div id=\"header\"><a href=/index.html>percept</a></div>\n". - -footer() -> - "</body> - </html>\n". - -menu() -> - "<div id=\"menu\" class=\"menu_tabs\"> - <ul> - <li><a href=/cgi-bin/percept_html/databases_page>databases</a></li> - <li><a href=/cgi-bin/percept_html/processes_page>processes</a></li> - <li><a href=/cgi-bin/percept_html/page>overview</a></li> - </ul></div>\n". - --spec error_msg(Error :: string()) -> string(). - -error_msg(Error) -> - "<table width=300> - <tr height=5><td></td> <td></td></tr> - <tr><td width=150 align=right><b>Error: </b></td> <td align=left>"++ Error ++ "</td></tr> - <tr height=5><td></td> <td></td></tr> - </table>\n". |