[erlang-patches] [PATCH] [observer] Escape control characters in Table Viewer
Peti Gömöri
gomoripeti@REDACTED
Wed Jun 13 18:43:10 CEST 2012
Similar behaviour to old tv.
Objects in tables supposed to be printed in a single line
and it looks ugly when a [...,10,...] integer list
creates a new-line.
---
lib/observer/src/observer_tv_table.erl | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/lib/observer/src/observer_tv_table.erl
b/lib/observer/src/observer_tv_table.erl
index d339a85..97d18ec 100644
--- a/lib/observer/src/observer_tv_table.erl
+++ b/lib/observer/src/observer_tv_table.erl
@@ -762,7 +762,7 @@ format_tuple(_Tuple, 1, 0) ->
format_list([]) -> "[]";
format_list(List) ->
case printable_list(List) of
- true -> io_lib:format("\"~ts\"", [List]);
+ true -> io_lib:format("\"~ts\"", [map_printable_list(List)]);
false -> [$[ | make_list(List)]
end.
@@ -771,6 +771,24 @@ make_list([Last]) ->
make_list([Head|Tail]) ->
[format(Head), $,|make_list(Tail)].
+map_printable_list([$\n|Cs]) ->
+ [$\\, $n|map_printable_list(Cs)];
+map_printable_list([$\r|Cs]) ->
+ [$\\, $r|map_printable_list(Cs)];
+map_printable_list([$\t|Cs]) ->
+ [$\\, $t|map_printable_list(Cs)];
+map_printable_list([$\v|Cs]) ->
+ [$\\, $v|map_printable_list(Cs)];
+map_printable_list([$\b|Cs]) ->
+ [$\\, $b|map_printable_list(Cs)];
+map_printable_list([$\f|Cs]) ->
+ [$\\, $f|map_printable_list(Cs)];
+map_printable_list([$\e|Cs]) ->
+ [$\\, $e|map_printable_list(Cs)];
+map_printable_list([]) -> [];
+map_printable_list([C|Cs]) ->
+ [C|map_printable_list(Cs)].
+
%% printable_list([Char]) -> bool()
%% Return true if CharList is a list of printable characters, else
%% false.
--
1.7.10.1
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