Merge branch 'list' into dev

sxbm

@@ -70,6 +70,69 @@ bm_add(){
     die "Couldn't add link"
 }
 
+bm_list(){
+  local QUERY_TAG
+  local QUERY_TITLE
+  local QUERY_STRICT="||"
+
+  while [ -n "$1" ]; do
+    case "$1" in
+      "-c"|"--disable-colors")
+        COL_LINK=""; COL_TITLE=""; COL_LINE_NUM="";
+        shift
+        ;;
+      "-s"|"--strict")
+        local QUERY_STRICT="&&"
+        shift
+        ;;
+      *)
+        break
+        ;;
+    esac
+  done
+
+  # POSIX shell doesn't have arrays.
+  # Desperate times calls for desperate measures!
+  while [ -n "$1" ]; do
+    case "$1" in
+      +*)
+        [ -z "$QUERY_TAG" ] &&
+          QUERY_TAG="/[[:space:]]\\$1[[:space:]]/" ||
+          QUERY_TAG="${QUERY_TAG} $QUERY_STRICT /[[:space:]]\\$1[[:space:]]/"
+        shift
+        ;;
+      *)
+        if [ "$QUERY_STRICT" = "&&" ]; then
+          [ -z "$QUERY_TITLE" ] &&
+            QUERY_TITLE="grep -i -e \"$1\"" ||
+            QUERY_TITLE="${QUERY_TITLE} | grep -i -e \"$1\""
+        else
+          [ -z "$QUERY_TITLE" ] &&
+            QUERY_TITLE="grep -i -e \"$1\"" ||
+            QUERY_TITLE="${QUERY_TITLE} -e \"$1\""
+        fi
+        shift
+        ;;
+    esac
+  done
+
+  [ -z "$QUERY_TITLE" ] &&
+    awk --posix -v COL_LINE_NUM="$COL_LINE_NUM" \
+      -v COL_LINK="$COL_LINK" -v COL_TITLE="$COL_TITLE" \
+      "$QUERY_TAG { LINK=\$1; \$1=\"\";
+      gsub(/[[:space:]]\+[^[:space:]]+/,\"\");
+      print COL_LINE_NUM NR \") \" COL_LINK LINK \" \" COL_TITLE \$0 }" \
+      "$DATA_FILE"
+
+  [ -n "$QUERY_TITLE" ] &&
+    awk --posix -v COL_LINE_NUM="$COL_LINE_NUM" \
+      -v COL_LINK="$COL_LINK" -v COL_TITLE="$COL_TITLE" \
+      "$QUERY_TAG { LINK=\$1; \$1=\"\";
+      gsub(/[[:space:]]\+[^[:space:]]+/,\"\");
+      print COL_LINE_NUM NR \") \" COL_LINK LINK \" \" COL_TITLE \$0 }" \
+      "$DATA_FILE" | eval "$QUERY_TITLE"
+}
+
 ############
 ### main ###
 ############
@@ -86,6 +149,8 @@ case "$1" in
     bm_add "$@"
     ;;
   "ls"|"list")
+    shift
+    bm_list "$@"
     ;;
   "open")
     ;;