diff --git a/sh/alias/git.sh b/sh/alias/git.sh
index 3e6386e..4519028 100644
--- a/sh/alias/git.sh
+++ b/sh/alias/git.sh
@@ -1,3 +1,5 @@
+# large set of aliases for git commands
+
 RWX_GIT_LOG_FORMAT="\
 %C(auto)%h%d
 S %C(red)%GS
diff --git a/sh/doc.awk b/sh/doc.awk
index f36b7b6..8763b76 100644
--- a/sh/doc.awk
+++ b/sh/doc.awk
@@ -17,20 +17,23 @@ function reset() {
 
 BEGIN {
     RE_ANY = "(.*)"
-    RE_NAME = "([_A-Za-z][_0-9A-Za-z]*)"
+    RE_CONST = "([_A-Z][_0-9A-Z]*)"
+    RE_SET = "=.*"
     RE_SPACE = "[[:space:]]"
     RE_SPACES = RE_SPACE "*"
+    RE_VAR = "([_a-z][_0-9a-z]*)"
 
     RE_BEGIN = "^"
     RE_END = RE_SPACES "$"
     RE_FUNC = RE_SPACES "\\(" RE_SPACES "\\)" RE_SPACES "{"
 
-    RE_ALIAS = RE_BEGIN "#\\(" RE_SPACES RE_NAME RE_END
+    RE_ALIAS = RE_BEGIN "#\\(" RE_SPACES RE_VAR RE_END
+    RE_CONSTANT = RE_BEGIN RE_CONST RE_SET RE_END
     RE_DOC = RE_BEGIN "#" RE_SPACE RE_ANY RE_END
-    RE_FUNCTION = RE_BEGIN RE_NAME RE_FUNC RE_END
-    RE_MODULE = RE_BEGIN "#." RE_SPACES RE_NAME RE_END
-    RE_SET = RE_BEGIN RE_NAME "=.*" RE_END
+    RE_FUNCTION = RE_BEGIN RE_VAR RE_FUNC RE_END
+    RE_MODULE = RE_BEGIN "#." RE_SPACES RE_ANY RE_END
     RE_SHEBANG = RE_BEGIN "#!" RE_SPACES RE_ANY RE_END
+    RE_VARIABLE = RE_BEGIN RE_VAR RE_SET RE_END
 
     alias = 0
     reset()
@@ -48,19 +51,27 @@ BEGIN {
         if (m[1] == target) {
             alias = 1
         }
-    # not doc
+    # set
+    } else if (match($0, RE_CONSTANT, m)) {
+        if (m[1] == target) {
+            printf "constant: "
+            output(m[1])
+        } else {
+            reset()
+        }
+    } else if (match($0, RE_VARIABLE, m)) {
+        if (m[1] == target) {
+            printf "variable: "
+            output(m[1])
+        } else {
+            reset()
+        }
+    # others
     } else if (match($0, RE_MODULE, m)) {
         reset()
         if (m[1] == target) {
             module = 1
         }
-    } else if (match($0, RE_SET, m)) {
-        if (m[1] == target) {
-            printf "set: "
-            output(m[1])
-        } else {
-            reset()
-        }
     } else if (match($0, RE_FUNCTION, m)) {
         if (alias) {
             print "alias: " target
diff --git a/sh/main.sh b/sh/main.sh
index fb323d8..9629b27 100755
--- a/sh/main.sh
+++ b/sh/main.sh
@@ -207,7 +207,7 @@ rwx_test() {
     # TODO variables
     set \
         "main" \
-        "self" \
+        "alias/git" \
         \
         "RWX_MAIN_NAME" \
         \