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authorMax Kellermann <max@duempel.org>2009-01-03 23:13:39 +0100
committerMax Kellermann <max@duempel.org>2009-01-03 23:13:39 +0100
commit77b32addf1639cf94475b40b1b9ed8990b9f5858 (patch)
tree6fc676f86791dbf0c9437f9208d4a684aeca3a4f /src
parent6d2e4f4e727920974d7621ce4515397e3ff4d40d (diff)
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tag: revert g_strescape() patch
Don't use g_strescape(), because it escapes all non-ASCII characters. Add a new function which clears all non-printable characters, not just "newline".
Diffstat (limited to 'src')
-rw-r--r--src/tag.c63
1 files changed, 56 insertions, 7 deletions
diff --git a/src/tag.c b/src/tag.c
index dbf4a098f..180dbb86a 100644
--- a/src/tag.c
+++ b/src/tag.c
@@ -411,19 +411,64 @@ void tag_end_add(struct tag *tag)
#endif
}
+static bool
+char_is_non_printable(unsigned char ch)
+{
+ return ch < 0x20;
+}
+
+static const char *
+find_non_printable(const char *p, size_t length)
+{
+ for (size_t i = 0; i < length; ++i)
+ if (char_is_non_printable(p[i]))
+ return p + i;
+
+ return NULL;
+}
+
+/**
+ * Clears all non-printable characters, convert them to space.
+ * Returns NULL if nothing needs to be cleared.
+ */
+static char *
+clear_non_printable(const char *p, size_t length)
+{
+ const char *first = find_non_printable(p, length);
+ char *dest;
+
+ if (first == NULL)
+ return NULL;
+
+ /* duplicate and null-terminate the string */
+ dest = g_memdup(p, length);
+ dest[length] = 0;
+
+ for (size_t i = first - p; i < length; ++i)
+ if (char_is_non_printable(dest[i]))
+ dest[i] = ' ';
+
+ return dest;
+}
+
static char *
fix_tag_value(const char *p, size_t length)
{
- char *utf8, *escaped;
+ char *utf8, *cleared;
utf8 = fix_utf8(p, length);
- if (utf8 == NULL)
- utf8 = g_strndup(p, length);
+ if (utf8 != NULL) {
+ p = utf8;
+ length = strlen(p);
+ }
- escaped = g_strescape(utf8, NULL);
- g_free(utf8);
+ cleared = clear_non_printable(p, length);
+ if (cleared == NULL)
+ cleared = utf8;
+ else
+ g_free(utf8);
- return escaped;
+ return cleared;
}
static void appendToTagItems(struct tag *tag, enum tag_type type,
@@ -433,6 +478,10 @@ static void appendToTagItems(struct tag *tag, enum tag_type type,
char *p;
p = fix_tag_value(value, len);
+ if (p != NULL) {
+ value = p;
+ len = strlen(value);
+ }
tag->numOfItems++;
@@ -449,7 +498,7 @@ static void appendToTagItems(struct tag *tag, enum tag_type type,
}
g_mutex_lock(tag_pool_lock);
- tag->items[i] = tag_pool_get_item(type, p, strlen(p));
+ tag->items[i] = tag_pool_get_item(type, value, len);
g_mutex_unlock(tag_pool_lock);
g_free(p);