[Qemu-devel] [PATCH 08/19] qapi: Improve reporting of lexical errors

Markus Armbruster posted 19 patches 6 years, 1 month ago
Maintainers: Markus Armbruster <armbru@redhat.com>, Michael Roth <mdroth@linux.vnet.ibm.com>
[Qemu-devel] [PATCH 08/19] qapi: Improve reporting of lexical errors
Posted by Markus Armbruster 6 years, 1 month ago
Show text up to next structural character, whitespace, or quote
character instead of just the first character.

Forgotten quotes now get reported like "Stray 'command'" instead of
"Stray 'c'".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 scripts/qapi/common.py             | 6 +++++-
 tests/qapi-schema/bad-type-int.err | 2 +-
 tests/qapi-schema/funny-word.err   | 2 +-
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/scripts/qapi/common.py b/scripts/qapi/common.py
index 142ab276ff..b3383b17ef 100644
--- a/scripts/qapi/common.py
+++ b/scripts/qapi/common.py
@@ -559,7 +559,11 @@ class QAPISchemaParser(object):
                 self.line += 1
                 self.line_pos = self.cursor
             elif not self.tok.isspace():
-                raise QAPIParseError(self, "Stray '%s'" % self.tok)
+                # Show up to next structural, whitespace or quote
+                # character
+                match = re.match('[^[\\]{}:,\\s\'"]+',
+                                 self.src[self.cursor-1:])
+                raise QAPIParseError(self, "Stray '%s'" % match.group(0))
 
     def get_members(self):
         expr = OrderedDict()
diff --git a/tests/qapi-schema/bad-type-int.err b/tests/qapi-schema/bad-type-int.err
index 2021fda5d1..9b2c12c1eb 100644
--- a/tests/qapi-schema/bad-type-int.err
+++ b/tests/qapi-schema/bad-type-int.err
@@ -1 +1 @@
-tests/qapi-schema/bad-type-int.json:3:13: Stray '1'
+tests/qapi-schema/bad-type-int.json:3:13: Stray '123'
diff --git a/tests/qapi-schema/funny-word.err b/tests/qapi-schema/funny-word.err
index 18aedb4a99..af92fe2551 100644
--- a/tests/qapi-schema/funny-word.err
+++ b/tests/qapi-schema/funny-word.err
@@ -1 +1 @@
-tests/qapi-schema/funny-word.json:1:3: Stray 'c'
+tests/qapi-schema/funny-word.json:1:3: Stray 'command'
-- 
2.21.0


Re: [Qemu-devel] [PATCH 08/19] qapi: Improve reporting of lexical errors
Posted by Eric Blake 6 years, 1 month ago
On 9/14/19 10:34 AM, Markus Armbruster wrote:
> Show text up to next structural character, whitespace, or quote
> character instead of just the first character.
> 
> Forgotten quotes now get reported like "Stray 'command'" instead of
> "Stray 'c'".
> 
> Signed-off-by: Markus Armbruster <armbru@redhat.com>
> ---

Reviewed-by: Eric Blake <eblake@redhat.com>

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
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