diff env/lib/python3.9/site-packages/galaxy/util/search.py @ 0:4f3585e2f14b draft default tip

"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/env/lib/python3.9/site-packages/galaxy/util/search.py	Mon Mar 22 18:12:50 2021 +0000
@@ -0,0 +1,33 @@
+import re
+
+
+def parse_filters(search_term, filters):
+    """Support github-like filters for narrowing the results.
+
+    Order of chunks does not matter, only recognized filter names are allowed.
+
+    :param search_term: the original search str from user input
+
+    :returns allow_query: whoosh Query object used for filtering
+        results of searching in index
+    :returns search_term_without_filters: str that represents user's
+        search phrase without the filters
+    """
+    allow_terms = []
+    search_term_without_filters = None
+    search_space = search_term.replace('"', "'")
+    filter_keys = "|".join(list(filters.keys()))
+    pattern = fr"({filter_keys}):(\w+|\'.*?\')"
+    reserved = re.compile(pattern)
+    while True:
+        match = reserved.search(search_space)
+        if match is None:
+            search_term_without_filters = ' '.join(search_space.split())
+            break
+        first_group = match.groups()[0]
+        if first_group in filters:
+            filter_as = filters[first_group]
+            allow_terms.append((filter_as, match.groups()[1].strip().replace("'", "")))
+        search_space = search_space[0:match.start()] + search_space[match.end():]
+    allow_query = allow_terms if len(allow_terms) > 0 else None
+    return allow_query, search_term_without_filters