The open_help function only looks for the netscape executable on unix

systems. Let it look for some browsers that support the openURL command
line protocol (using netscape by default). The BROWSER environment variable
is used if set.

1 files changed, 88 insertions, 0 deletions

diff --git a/lang/erlang14/files/patch-lib_gs_src_tool__utils.erl b/lang/erlang14/files/patch-lib_gs_src_tool__utils.erl
new file mode 100644
index 000000000000..4f4482bc45b1
--- /dev/null
+++ b/lang/erlang14/files/patch-lib_gs_src_tool__utils.erl
@@ -0,0 +1,88 @@
+
+$FreeBSD$
+
+--- lib/gs/src/tool_utils.erl.orig	Thu Sep  4 23:01:37 2003
++++ lib/gs/src/tool_utils.erl	Fri Sep  5 00:16:20 2003
+@@ -27,6 +27,9 @@
+ -export([file_dialog/1]).
+ -export([notify/2, confirm/2, confirm_yesno/2, request/2]).
+ 
++%% Browser executable list (openURL command line protocol required)
++-define(BROWSERS, ["netscape", "mozilla", "MozillaFirebird", "opera"]).
++
+ %%----------------------------------------------------------------------
+ %% open_help(GS, File)
+ %%   GS = gsobj()  (GS root object returned by gs:start/0,1)
+@@ -51,7 +54,7 @@
+ 	local ->
+ 	    Cmd = case os:type() of
+ 		      {unix,_AnyType} ->
+-			  "netscape -remote \"openURL(file:" ++ File ++ ")\"";
++			  unix_url_command("file:" ++ File);
+ 
+ 		      {win32,_AnyType} ->
+ 			  "start " ++ filename:nativename(File)
+@@ -62,7 +65,7 @@
+ 	remote ->
+ 	    Cmd = case os:type() of
+ 		      {unix,_AnyType} ->
+-			  "netscape -remote \"openURL(" ++ File ++ ")\"";
++			  unix_url_command(File);
+ 
+ 		      {win32,_AnyType} ->
+ 			  "netscape.exe -h " ++ regexp:gsub(File,"\\\\","/")
+@@ -307,3 +310,54 @@
+     [Last];
+ insert_newlines(Other) ->
+     Other.
++
++%% find_browser(BrowserList) => string() | false
++%%   BrowserList - [string()]
++%% Given a list of basenames, find the first available executable.
++
++find_browser([]) ->
++    false;
++
++find_browser([H | T]) ->
++    case os:find_executable(H) of
++        false ->
++          find_browser(T);
++        Browser ->
++          Browser
++    end.
++
++%% unix_url_command(URL) => string()
++%%   URL - string()
++%% Open an URL, using a browser which supports the openURL command
++%% line protocol. If no browser is found, the empty string will be
++%% returned.
++
++unix_url_command(URL) ->
++    Template = "BROWSER -remote \"openURL(" ++ URL ++ ")\" || BROWSER " ++ URL ++ "&",
++
++    case os:getenv("BROWSER") of
++        false ->
++            %% look for a compatible browser
++            case find_browser(?BROWSERS) of
++                false ->
++                    "";
++                Browser ->
++                    case regexp:gsub(Template, "BROWSER", Browser) of
++                        {ok, Command, 0} ->
++                            %% Template does not contain "BROWSER" placeholder
++                            "";
++                        {ok, Command, _} ->
++                            Command
++                    end
++            end;
++
++        Value ->
++            case regexp:gsub(Template, "BROWSER", Value) of
++                {ok, Command2, 0} ->
++                    %% no placeholder
++                    "";
++                {ok, Command2, _} ->
++                    Command2
++            end
++    end.
++