core: add reverse of string in evaluation of expressions with "rev:" (closes #1200)

2 files changed, 15 insertions, 8 deletions

diff --git a/doc/it/autogen/user/weechat_commands.adoc b/doc/it/autogen/user/weechat_commands.adoc
index 62e977628..e3541afb5 100644
--- a/doc/it/autogen/user/weechat_commands.adoc
+++ b/doc/it/autogen/user/weechat_commands.adoc
@@ -296,14 +296,15 @@ Some variables are replaced in expression, using the format ${variable}, variabl
   3. a string with chars to hide (format: "hide:char,string")
   4. a string with max chars (format: "cut:max,suffix,string" or "cut:+max,suffix,string")
      or max chars displayed on screen (format: "cutscr:max,suffix,string" or "cutscr:+max,suffix,string")
-  5. a color (format: "color:xxx", see "Plugin API reference", function "color")
-  6. an info (format: "info:name,arguments", arguments are optional)
-  7. current date/time (format: "date" or "date:format")
-  8. an environment variable (format: "env:XXX")
-  9. a ternary operator (format: "if:condition?value_if_true:value_if_false")
-  10. an option (format: "file.section.option")
-  11. a local variable in buffer
-  12. a hdata name/variable (the value is automatically converted to string), by default "window" and "buffer" point to current window/buffer.
+  5. a reversed string (format: "rev:xxx")
+  6. a color (format: "color:xxx", see "Plugin API reference", function "color")
+  7. an info (format: "info:name,arguments", arguments are optional)
+  8. current date/time (format: "date" or "date:format")
+  9. an environment variable (format: "env:XXX")
+  10. a ternary operator (format: "if:condition?value_if_true:value_if_false")
+  11. an option (format: "file.section.option")
+  12. a local variable in buffer
+  13. a hdata name/variable (the value is automatically converted to string), by default "window" and "buffer" point to current window/buffer.
 Format for hdata can be one of following:
   hdata.var1.var2...: start with a hdata (pointer must be known), and ask variables one after one (other hdata can be followed)
   hdata[list].var1.var2...: start with a hdata using a list, for example:
diff --git a/doc/it/weechat_plugin_api.it.adoc b/doc/it/weechat_plugin_api.it.adoc
index 2c02fce47..2c17ed3d2 100644
--- a/doc/it/weechat_plugin_api.it.adoc
+++ b/doc/it/weechat_plugin_api.it.adoc
@@ -2381,6 +2381,12 @@ expanded to last):
   `+thi…+` +
   `+こ>>+`
 
+| `+${rev:xxx}+` +
+  (_WeeChat ≥ 2.2_) |
+  Reversed string. |
+  `+${rev:Hello, world!}+` |
+  `+!dlrow ,olleH+`
+
 | `+${re:N}+` +
   (_WeeChat ≥ 1.1_) |
   Regex captured group: `0` = whole string matching, `1` to `99` = group