Fix splitting when using DECLARE ... HANDLER (fixes #581).

CHANGELOG

@@ -21,6 +21,7 @@ Bug Fixes
 * Improved parsing of IN(...) statements (issue566, pr567 by hurcy).
 * Preserve line breaks when removing comments (issue484).
 * Fix parsing error when using square bracket notation (issue583).
+* Fix splitting when using DECLARE ... HANDLER (issue581).
 
 
 Release 0.3.1 (Feb 29, 2020)

sqlparse/keywords.py

@@ -84,6 +84,7 @@ def is_keyword(value):
         (r'DOUBLE\s+PRECISION\b', tokens.Name.Builtin),
         (r'GROUP\s+BY\b', tokens.Keyword),
         (r'ORDER\s+BY\b', tokens.Keyword),
+        (r'HANDLER\s+FOR\b', tokens.Keyword),
         (r'(LATERAL\s+VIEW\s+)'
          r'(EXPLODE|INLINE|PARSE_URL_TUPLE|POSEXPLODE|STACK)\b',
          tokens.Keyword),
@@ -294,7 +295,6 @@ def is_keyword(value):
     'GRANTED': tokens.Keyword,
     'GROUPING': tokens.Keyword,
 
-    'HANDLER': tokens.Keyword,
     'HAVING': tokens.Keyword,
     'HIERARCHY': tokens.Keyword,
     'HOLD': tokens.Keyword,

tests/files/mysql_handler.sql

@@ -0,0 +1,10 @@
+create procedure proc1()
+begin
+  declare handler for foo begin end;
+  select 1;
+end;
+
+create procedure proc2()
+begin
+  select 1;
+end;

tests/test_split.py

@@ -154,3 +154,9 @@ def test_split_quotes_with_new_line():
     stmts = sqlparse.split("select 'foo\n\bar'")
     assert len(stmts) == 1
     assert stmts[0] == "select 'foo\n\bar'"
+
+
+def test_split_mysql_handler_for(load_file):
+    # see issue581
+    stmts = sqlparse.split(load_file('mysql_handler.sql'))
+    assert len(stmts) == 2