1 files changed, 13 insertions, 1 deletions
diff --git a/nvtable b/nvtable
index 1eb008a..4955f92 100755
--- a/nvtable
+++ b/nvtable
@@ -49,6 +49,13 @@ declare -A REPO_ALIAS=(
   [metasploit-framework]="metasploit-framework-bin"
 )
 
+# Stanza name -> JSON file carrying the installed version, for apps unpacked
+# under /opt that are neither a package, an AppImage, nor a flatpak. Value is
+# "<path>:<jq filter>".
+declare -A OPT_JSON=(
+  [Typora]="/opt/Typora-linux-x64/resources/package.json:.version"
+)
+
 SHOW_ALL=0; NO_TAKE=0; NO_COLOR=0; NO_EMOJI=0
 for a in "$@"; do
   case "$a" in
@@ -140,7 +147,12 @@ if command -v flatpak >/dev/null 2>&1; then
 fi
 
 installed_of() {  # echoes "version" or "" ; handles alias + case-insensitive
-  local n=$1 cand v
+  local n=$1 cand v spec f
+  if [[ -n ${OPT_JSON[$n]:-} ]]; then
+    spec=${OPT_JSON[$n]}; f=${spec%%:*}
+    [[ -r $f ]] && v=$(jq -r "${spec#*:} // empty" "$f" 2>/dev/null) \
+                && [[ -n $v ]] && { echo "$v"; return; }
+  fi
   for cand in ${ALIAS[$n]:-$n}; do
     # Anchored lookup first: correct even when VERSION contains a dash.
     v=$(pkg_version "$cand") && { echo "$v"; return; }