clarified dictionary in format description

NEWS

@@ -2,6 +2,7 @@ v1.0.1
 New : contrib/pzstd, parallel version of zstd, by Nick Terrell
 Fixed : CLI -d output to stdout by default when input is stdin (#322)
 Fixed : CLI correctly detects console on Mac OS-X
+Fixed : compatibility with OpenBSD, reported by Juan Francisco Cantero Hurtado (#319)
 Fixed : zstd-pgo, reported by octoploid (#329)
 
 v1.0.0

lib/compress/zstd_compress.c

@@ -8,7 +8,6 @@
  */
 
 
-
 /*-*******************************************************
 *  Compiler specifics
 *********************************************************/

lib/dictBuilder/zdict.c

@@ -463,12 +463,6 @@ static U32 ZDICT_dictSize(const dictItem* dictList)
 }
 
 
-#define DISPLAYUPDATE(l, ...) if (g_displayLevel>=l) { \
-            if (ZDICT_clockSpan(displayClock) > refreshRate)  \
-            { displayClock = clock(); DISPLAY(__VA_ARGS__); \
-            if (g_displayLevel>=4) fflush(stdout); } }
-static const clock_t refreshRate = CLOCKS_PER_SEC * 3 / 10;
-
 static size_t ZDICT_trainBuffer(dictItem* dictList, U32 dictListSize,
                             const void* const buffer, size_t bufferSize,   /* buffer must end with noisy guard band */
                             const size_t* fileSizes, unsigned nbFiles,
@@ -481,6 +475,12 @@ static size_t ZDICT_trainBuffer(dictItem* dictList, U32 dictListSize,
     U32* filePos = (U32*)malloc(nbFiles * sizeof(*filePos));
     size_t result = 0;
     clock_t displayClock = 0;
+    clock_t const refreshRate = CLOCKS_PER_SEC * 3 / 10;
+
+#   define DISPLAYUPDATE(l, ...) if (g_displayLevel>=l) { \
+            if (ZDICT_clockSpan(displayClock) > refreshRate)  \
+            { displayClock = clock(); DISPLAY(__VA_ARGS__); \
+            if (g_displayLevel>=4) fflush(stdout); } }
 
     /* init */
     DISPLAYLEVEL(2, "\r%70s\r", "");   /* clean display line */

zstd_compression_format.md

@@ -1126,10 +1126,10 @@ When `Repeated_Offset2` is used, it's swapped with `Repeated_Offset1`.
 Dictionary format
 -----------------
 
-`zstd` is compatible with "pure content" dictionaries, free of any format restriction.
+`zstd` is compatible with "raw content" dictionaries, free of any format restriction.
 But dictionaries created by `zstd --train` follow a format, described here.
 
-__Pre-requisites__ : a dictionary has a known length,
+__Pre-requisites__ : a dictionary has a size,
                      defined either by a buffer limit, or a file size.
 
 | `Magic_Number` | `Dictionary_ID` | `Entropy_Tables` | `Content` |
@@ -1157,14 +1157,15 @@ __`Entropy_Tables`__ : following the same format as a [compressed blocks].
               It's finally followed by 3 offset values, populating recent offsets,
               stored in order, 4-bytes little-endian each, for a total of 12 bytes.
 
-__`Content`__ : Where the actual dictionary content is.
+__`Content`__ : The rest of the dictionary is its content.
-              Content size depends on Dictionary size.
+              The content act as a "past" in front of data to compress or decompress.
 
 [compressed blocks]: #the-format-of-compressed_block
 
 
 Version changes
 ---------------
+- 0.2.1 : clarify field names, by Przemyslaw Skibinski
 - 0.2.0 : numerous format adjustments for zstd v0.8
 - 0.1.2 : limit Huffman tree depth to 11 bits
 - 0.1.1 : reserved dictID ranges