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-rw-r--r--src/coding.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/src/coding.c b/src/coding.c
index 8ea518d3708..36376b83ede 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -4528,7 +4528,7 @@ detect_coding_system (src, src_bytes, highest)
if (VECTORP (val2))
val = XVECTOR (val2)->contents[eol_type];
}
- return val;
+ return (highest ? val : Fcons (val, Qnil));
}
/* At first, gather possible coding systems in VAL. */
@@ -4567,8 +4567,9 @@ DEFUN ("detect-coding-region", Fdetect_coding_region, Sdetect_coding_region,
"Detect coding system of the text in the region between START and END.\n\
Return a list of possible coding systems ordered by priority.\n\
\n\
-If only ASCII characters are found, it returns `undecided'\n\
-or its subsidiary coding system according to a detected end-of-line format.\n\
+If only ASCII characters are found, it returns a list of single element\n\
+`undecided' or its subsidiary coding system according to a detected\n\
+end-of-line format.\n\
\n\
If optional argument HIGHEST is non-nil, return the coding system of\n\
highest priority.")
@@ -4599,8 +4600,9 @@ DEFUN ("detect-coding-string", Fdetect_coding_string, Sdetect_coding_string,
"Detect coding system of the text in STRING.\n\
Return a list of possible coding systems ordered by priority.\n\
\n\
-If only ASCII characters are found, it returns `undecided'\n\
-or its subsidiary coding system according to a detected end-of-line format.\n\
+If only ASCII characters are found, it returns a list of single element\n\
+`undecided' or its subsidiary coding system according to a detected\n\
+end-of-line format.\n\
\n\
If optional argument HIGHEST is non-nil, return the coding system of\n\
highest priority.")