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authorNoam Postavsky <npostavs@gmail.com>2018-05-11 13:44:46 -0400
committerNoam Postavsky <npostavs@gmail.com>2018-05-23 07:53:58 -0400
commit6f037f427a25160168e842bff0d12b816d69067d (patch)
treefdcb0290e8f9e1a957ffab079b1f4d2f9bfdeb34 /src/print.c
parent0d224e82411d9471f03fc339890d6a2952b5e239 (diff)
downloademacs-6f037f427a25160168e842bff0d12b816d69067d.tar.gz
Honor print-charset-text-property value of nil (Bug#31376)
* src/print.c (print_check_string_charset_prop): Move check for nil Vprint_charset_text_property from here... (print_prune_string_charset): ... to here. (syms_of_print) <print-charset-text-property>: Clarify that any non-boolean values are treated the same as `default'. * doc/lispref/streams.texi (Output Variables): Add print-prune-string-charset. * test/src/print-tests.el (print-charset-text-property-nil) (print-charset-text-property-default) (print-charset-text-property-t): New tests. (print-tests--prints-with-charset-p): New helper function.
Diffstat (limited to 'src/print.c')
-rw-r--r--src/print.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/src/print.c b/src/print.c
index 7c6856af48c..83943752204 100644
--- a/src/print.c
+++ b/src/print.c
@@ -1317,8 +1317,7 @@ print_check_string_charset_prop (INTERVAL interval, Lisp_Object string)
|| CONSP (XCDR (XCDR (val))))
print_check_string_result |= PRINT_STRING_NON_CHARSET_FOUND;
}
- if (NILP (Vprint_charset_text_property)
- || ! (print_check_string_result & PRINT_STRING_UNSAFE_CHARSET_FOUND))
+ if (! (print_check_string_result & PRINT_STRING_UNSAFE_CHARSET_FOUND))
{
int i, c;
ptrdiff_t charpos = interval->position;
@@ -1348,7 +1347,8 @@ print_prune_string_charset (Lisp_Object string)
print_check_string_result = 0;
traverse_intervals (string_intervals (string), 0,
print_check_string_charset_prop, string);
- if (! (print_check_string_result & PRINT_STRING_UNSAFE_CHARSET_FOUND))
+ if (NILP (Vprint_charset_text_property)
+ || ! (print_check_string_result & PRINT_STRING_UNSAFE_CHARSET_FOUND))
{
string = Fcopy_sequence (string);
if (print_check_string_result & PRINT_STRING_NON_CHARSET_FOUND)
@@ -2423,7 +2423,7 @@ that need to be recorded in the table. */);
DEFVAR_LISP ("print-charset-text-property", Vprint_charset_text_property,
doc: /* A flag to control printing of `charset' text property on printing a string.
-The value must be nil, t, or `default'.
+The value should be nil, t, or `default'.
If the value is nil, don't print the text property `charset'.
@@ -2431,7 +2431,8 @@ If the value is t, always print the text property `charset'.
If the value is `default', print the text property `charset' only when
the value is different from what is guessed in the current charset
-priorities. */);
+priorities. Values other than nil or t are also treated as
+`default'. */);
Vprint_charset_text_property = Qdefault;
/* prin1_to_string_buffer initialized in init_buffer_once in buffer.c */