Allow caption timestamp to be be an ISO 8601 format string

ChangeLog

@@ -1,6 +1,6 @@
 0.52:
- * Allow custom log timestamp to be a string.
  * Support ISO 8601 timestamp format.
+ * Allow custom log and caption file timestamps to be strings.
  * Change regular expression library to PCRE2.
  * Fixed filenames not being affected by --font-scale (Carl Colena).
  * Fixed file key not being affected by --font-scale.

README.md

@@ -391,7 +391,7 @@ Custom Log Format:
 If you want to use Gource with something other than the supported systems,
 there is a pipe ('|') delimited custom log format:
 
-    timestamp - An ISO 8601 or unix timestamp of when the update occured.
+    timestamp - An ISO 8601 or unix timestamp of when the update occurred.
     username  - The name of the user who made the update.
     type      - initial for the update type - (A)dded, (M)odified or (D)eleted.
     file      - Path of the file updated.
@@ -402,7 +402,7 @@ Caption Log Format:
 Gource can display captions along the timeline by specifying a caption file
 (using --caption-file) in the pipe ('|') delimited format below:
 
-    timestamp - A unix timestamp of when to display the caption.
+    timestamp - An ISO 8601 or A unix timestamp of when to display the caption.
     caption   - The caption
 
 Recording Videos:

data/gource.1

@@ -370,7 +370,7 @@ colour    - A colour for the file in hex (FFFFFF) format. Optional.
 Gource can display captions along the timeline by specifying a caption file (using \-\-caption\-file) in the pipe ('|') delimited format below:
 
 .ti 10
-timestamp - A unix timestamp of when to display the caption.
+timestamp - An ISO 8601 or unix timestamp of when to display the caption.
 .ti 10
 caption   - The caption
 

src/gource.cpp

@@ -1062,7 +1062,7 @@ void Gource::seekTo(float percent) {
     commitlog->seekTo(percent);
 }
 
-Regex caption_regex("^(?:\\xEF\\xBB\\xBF)?([0-9]+)\\|(.+)$");
+Regex caption_regex("^(?:\\xEF\\xBB\\xBF)?([^|]+)\\|(.+)$");
 
 void Gource::loadCaptions() {
     if(!gGourceSettings.caption_file.size()) return;
@@ -1082,7 +1082,18 @@ void Gource::loadCaptions() {
 
         if(!caption_regex.match(line, &matches)) continue;
 
-        time_t timestamp    = atol(matches[0].c_str());
+        time_t timestamp;
+
+        // Allow timestamp to be a string
+        if(matches[0].size() > 1 && matches[0].find("-", 1) != std::string::npos) {
+            if(!SDLAppSettings::parseDateTime(matches[0], timestamp))
+                continue;
+        } else {
+            timestamp = (time_t) atoll(matches[0].c_str());
+            if(!timestamp && matches[0] != "0")
+                continue;
+        }
+
         std::string caption = RCommitLog::filter_utf8(matches[1]);
 
         //ignore older captions

tests/logs/utf8-caption.log

@@ -1 +1,2 @@
-1277787465|Árvíztűrő tükörfúrógép removes a file
+1277787455|Árvíztűrő tükörfúrógép adds a file
+2010-06-29 16:57:45|Árvíztűrő tükörfúrógép removes a file