kakoune: file and project symbols: support spaces in first token (example css)

uses non-breaking space as a separator and assumes that first numeric
token (starting from second one) is the line number (i.e., assumes that
the searched token does not contain space delimited number)

kakoune/.config/kak/scripts/projectsymbolscmd.awk

@@ -0,0 +1,11 @@
+BEGIN {
+    n = split(ENVIRON["kak_text"], a, "\u00a0")
+    line = a[3]
+    if (n == 4 && line ~ /^[0-9]+/) {
+        pat = a[1]
+        gsub(/'/, "''", pat)
+        gsub(/\\/, "\\\\", pat)
+        print "edit --", a[4], line
+        print "execute-keys vv x s %{/\\b\\Q" pat "\\E\\b|\\Q" pat "<ret>} <a-)>,"
+    }
+}