diff options
| -rw-r--r-- | libavutil/avstring.h | 14 | ||||
| -rw-r--r-- | libavutil/bprint.c | 29 | ||||
| -rw-r--r-- | libavutil/version.h | 2 | ||||
| -rw-r--r-- | tools/ffescape.c | 7 |
4 files changed, 49 insertions, 3 deletions
diff --git a/libavutil/avstring.h b/libavutil/avstring.h index ee225585b3..fae446c302 100644 --- a/libavutil/avstring.h +++ b/libavutil/avstring.h @@ -324,6 +324,7 @@ enum AVEscapeMode { AV_ESCAPE_MODE_AUTO, ///< Use auto-selected escaping mode. AV_ESCAPE_MODE_BACKSLASH, ///< Use backslash escaping. AV_ESCAPE_MODE_QUOTE, ///< Use single-quote escaping. + AV_ESCAPE_MODE_XML, ///< Use XML non-markup character data escaping. }; /** @@ -344,6 +345,19 @@ enum AVEscapeMode { #define AV_ESCAPE_FLAG_STRICT (1 << 1) /** + * Within AV_ESCAPE_MODE_XML, additionally escape single quotes for single + * quoted attributes. + */ +#define AV_ESCAPE_FLAG_XML_SINGLE_QUOTES (1 << 2) + +/** + * Within AV_ESCAPE_MODE_XML, additionally escape double quotes for double + * quoted attributes. + */ +#define AV_ESCAPE_FLAG_XML_DOUBLE_QUOTES (1 << 3) + + +/** * Escape string in src, and put the escaped string in an allocated * string in *dst, which must be freed with av_free(). * diff --git a/libavutil/bprint.c b/libavutil/bprint.c index 2f059c5ba6..e12fb263fe 100644 --- a/libavutil/bprint.c +++ b/libavutil/bprint.c @@ -283,6 +283,35 @@ void av_bprint_escape(AVBPrint *dstbuf, const char *src, const char *special_cha av_bprint_chars(dstbuf, '\'', 1); break; + case AV_ESCAPE_MODE_XML: + /* escape XML non-markup character data as per 2.4 by default: */ + /* [^<&]* - ([^<&]* ']]>' [^<&]*) */ + + /* additionally, given one of the AV_ESCAPE_FLAG_XML_* flags, */ + /* escape those specific characters as required. */ + for (; *src; src++) { + switch (*src) { + case '&' : av_bprintf(dstbuf, "%s", "&"); break; + case '<' : av_bprintf(dstbuf, "%s", "<"); break; + case '>' : av_bprintf(dstbuf, "%s", ">"); break; + case '\'': + if (!(flags & AV_ESCAPE_FLAG_XML_SINGLE_QUOTES)) + goto XML_DEFAULT_HANDLING; + + av_bprintf(dstbuf, "%s", "'"); + break; + case '"' : + if (!(flags & AV_ESCAPE_FLAG_XML_DOUBLE_QUOTES)) + goto XML_DEFAULT_HANDLING; + + av_bprintf(dstbuf, "%s", """); + break; +XML_DEFAULT_HANDLING: + default: av_bprint_chars(dstbuf, *src, 1); + } + } + break; + /* case AV_ESCAPE_MODE_BACKSLASH or unknown mode */ default: /* \-escape characters */ diff --git a/libavutil/version.h b/libavutil/version.h index b7c5892a37..356c54d633 100644 --- a/libavutil/version.h +++ b/libavutil/version.h @@ -79,7 +79,7 @@ */ #define LIBAVUTIL_VERSION_MAJOR 56 -#define LIBAVUTIL_VERSION_MINOR 66 +#define LIBAVUTIL_VERSION_MINOR 67 #define LIBAVUTIL_VERSION_MICRO 100 #define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \ diff --git a/tools/ffescape.c b/tools/ffescape.c index 0530d28c6d..1ed8daa801 100644 --- a/tools/ffescape.c +++ b/tools/ffescape.c @@ -78,8 +78,10 @@ int main(int argc, char **argv) infilename = optarg; break; case 'f': - if (!strcmp(optarg, "whitespace")) escape_flags |= AV_ESCAPE_FLAG_WHITESPACE; - else if (!strcmp(optarg, "strict")) escape_flags |= AV_ESCAPE_FLAG_STRICT; + if (!strcmp(optarg, "whitespace")) escape_flags |= AV_ESCAPE_FLAG_WHITESPACE; + else if (!strcmp(optarg, "strict")) escape_flags |= AV_ESCAPE_FLAG_STRICT; + else if (!strcmp(optarg, "xml_single_quotes")) escape_flags |= AV_ESCAPE_FLAG_XML_SINGLE_QUOTES; + else if (!strcmp(optarg, "xml_double_quotes")) escape_flags |= AV_ESCAPE_FLAG_XML_DOUBLE_QUOTES; else { av_log(NULL, AV_LOG_ERROR, "Invalid value '%s' for option -f, " @@ -104,6 +106,7 @@ int main(int argc, char **argv) if (!strcmp(optarg, "auto")) escape_mode = AV_ESCAPE_MODE_AUTO; else if (!strcmp(optarg, "backslash")) escape_mode = AV_ESCAPE_MODE_BACKSLASH; else if (!strcmp(optarg, "quote")) escape_mode = AV_ESCAPE_MODE_QUOTE; + else if (!strcmp(optarg, "xml")) escape_mode = AV_ESCAPE_MODE_XML; else { av_log(NULL, AV_LOG_ERROR, "Invalid value '%s' for option -m, " |