Move all awk functions to separate files

awk/markdown_embed.awk

@@ -119,11 +119,35 @@ function css_highlight_line(line,    m, prop, val) {
         return "<span class=\"tok-punc\">}</span>"
     }
 
-    if (match(line, /^([[:space:]]*)(--?[A-Za-z0-9_-]+)([[:space:]]*:[[:space:]]*)([^;]*)(;?[[:space:]]*)$/, m)) {
-        prop = "<span class=\"tok-prop\">" m[2] "</span>"
-        gsub(/var\(--[A-Za-z0-9_-]+\)/, "<span class=\"tok-var\">&</span>", m[4])
-        val = "<span class=\"tok-val\">" m[4] "</span>"
-        return m[1] prop m[3] val m[5]
+    if (line ~ /^[[:space:]]*--?[A-Za-z0-9_-]+[[:space:]]*:[[:space:]]*[^;]*;?[[:space:]]*$/) {
+        match(line, /:[[:space:]]*/)
+        sep_pos = RSTART
+        sep_len = RLENGTH
+        
+        pre_sep = substr(line, 1, sep_pos - 1)
+        sep = substr(line, sep_pos, sep_len)
+        post_sep = substr(line, sep_pos + sep_len)
+        
+        match(pre_sep, /--?[A-Za-z0-9_-]+/)
+        prop_pos = RSTART
+        prop_len = RLENGTH
+        
+        indent = substr(pre_sep, 1, prop_pos - 1)
+        prop_name = substr(pre_sep, prop_pos, prop_len)
+        
+        if (match(post_sep, /;[[:space:]]*$/)) {
+            val_part = substr(post_sep, 1, RSTART - 1)
+            suffix = substr(post_sep, RSTART)
+        } else {
+            val_part = post_sep
+            suffix = ""
+        }
+        
+        prop = "<span class=\"tok-prop\">" prop_name "</span>"
+        gsub(/var\(--[A-Za-z0-9_-]+\)/, "<span class=\"tok-var\">&</span>", val_part)
+        val = "<span class=\"tok-val\">" val_part "</span>"
+        
+        return indent prop sep val suffix
     }
 
     return line