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Issue #5067: improve some json error messages.

Browse source 
Patch by Serhiy Storchaka.
This commit is contained in:
Antoine Pitrou 2012-06-29 01:58:26 +02:00
parent 24319ac407
commit 2d24e94bbe
5 changed files with 14 additions and 12 deletions
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2
Doc/library/json.rst
View file

@ -99,7 +99,7 @@ Using json.tool from the shell to validate and pretty-print::
"json": "obj" "json": "obj"
} }
$ echo '{1.2:3.4}' | python -mjson.tool $ echo '{1.2:3.4}' | python -mjson.tool
Expecting property name: line 1 column 1 (char 1) Expecting property name enclosed in double quotes: line 1 column 1 (char 1)
.. highlight:: python3 .. highlight:: python3

2
Lib/json/__init__.py
View file

@ -97,7 +97,7 @@
"json": "obj" "json": "obj"
} }
$ echo '{ 1.2:3.4}' | python -m json.tool $ echo '{ 1.2:3.4}' | python -m json.tool
Expecting property name: line 1 column 2 (char 2) Expecting property name enclosed in double quotes: line 1 column 2 (char 2)
""" """
__version__ = '2.0.9' __version__ = '2.0.9'
__all__ = [ __all__ = [

12
Lib/json/decoder.py
View file

@ -173,7 +173,8 @@ def JSONObject(s_and_end, strict, scan_once, object_hook, object_pairs_hook,
pairs = object_hook(pairs) pairs = object_hook(pairs)
return pairs, end + 1 return pairs, end + 1
elif nextchar != '"': elif nextchar != '"':
raise ValueError(errmsg("Expecting property name", s, end)) raise ValueError(errmsg(
"Expecting property name enclosed in double quotes", s, end))
end += 1 end += 1
while True: while True:
key, end = scanstring(s, end, strict) key, end = scanstring(s, end, strict)
@ -183,7 +184,7 @@ def JSONObject(s_and_end, strict, scan_once, object_hook, object_pairs_hook,
if s[end:end + 1] != ':': if s[end:end + 1] != ':':
end = _w(s, end).end() end = _w(s, end).end()
if s[end:end + 1] != ':': if s[end:end + 1] != ':':
raise ValueError(errmsg("Expecting : delimiter", s, end)) raise ValueError(errmsg("Expecting ':' delimiter", s, end))
end += 1 end += 1
try: try:
@ -211,12 +212,13 @@ def JSONObject(s_and_end, strict, scan_once, object_hook, object_pairs_hook,
if nextchar == '}': if nextchar == '}':
break break
elif nextchar != ',': elif nextchar != ',':
raise ValueError(errmsg("Expecting , delimiter", s, end - 1)) raise ValueError(errmsg("Expecting ',' delimiter", s, end - 1))
end = _w(s, end).end() end = _w(s, end).end()
nextchar = s[end:end + 1] nextchar = s[end:end + 1]
end += 1 end += 1
if nextchar != '"': if nextchar != '"':
raise ValueError(errmsg("Expecting property name", s, end - 1)) raise ValueError(errmsg(
"Expecting property name enclosed in double quotes", s, end - 1))
if object_pairs_hook is not None: if object_pairs_hook is not None:
result = object_pairs_hook(pairs) result = object_pairs_hook(pairs)
return result, end return result, end
@ -250,7 +252,7 @@ def JSONArray(s_and_end, scan_once, _w=WHITESPACE.match, _ws=WHITESPACE_STR):
if nextchar == ']': if nextchar == ']':
break break
elif nextchar != ',': elif nextchar != ',':
raise ValueError(errmsg("Expecting , delimiter", s, end)) raise ValueError(errmsg("Expecting ',' delimiter", s, end))
try: try:
if s[end] in _ws: if s[end] in _ws:
end += 1 end += 1

2
Lib/json/tool.py
View file

@ -7,7 +7,7 @@
"json": "obj" "json": "obj"
} }
$ echo '{ 1.2:3.4}' | python -m json.tool $ echo '{ 1.2:3.4}' | python -m json.tool
Expecting property name: line 1 column 2 (char 2) Expecting property name enclosed in double quotes: line 1 column 2 (char 2)
""" """
import sys import sys

8
Modules/_json.c
View file

@ -634,7 +634,7 @@ _parse_object_unicode(PyScannerObject *s, PyObject *pystr, Py_ssize_t idx, Py_ss
/* read key */ /* read key */
if (str[idx] != '"') { if (str[idx] != '"') {
raise_errmsg("Expecting property name", pystr, idx); raise_errmsg("Expecting property name enclosed in double quotes", pystr, idx);
goto bail; goto bail;
} }
key = scanstring_unicode(pystr, idx + 1, strict, &next_idx); key = scanstring_unicode(pystr, idx + 1, strict, &next_idx);
@ -655,7 +655,7 @@ _parse_object_unicode(PyScannerObject *s, PyObject *pystr, Py_ssize_t idx, Py_ss
/* skip whitespace between key and : delimiter, read :, skip whitespace */ /* skip whitespace between key and : delimiter, read :, skip whitespace */
while (idx <= end_idx && IS_WHITESPACE(str[idx])) idx++; while (idx <= end_idx && IS_WHITESPACE(str[idx])) idx++;
if (idx > end_idx || str[idx] != ':') { if (idx > end_idx || str[idx] != ':') {
raise_errmsg("Expecting : delimiter", pystr, idx); raise_errmsg("Expecting ':' delimiter", pystr, idx);
goto bail; goto bail;
} }
idx++; idx++;
@ -695,7 +695,7 @@ _parse_object_unicode(PyScannerObject *s, PyObject *pystr, Py_ssize_t idx, Py_ss
break; break;
} }
else if (str[idx] != ',') { else if (str[idx] != ',') {
raise_errmsg("Expecting , delimiter", pystr, idx); raise_errmsg("Expecting ',' delimiter", pystr, idx);
goto bail; goto bail;
} }
idx++; idx++;
@ -777,7 +777,7 @@ _parse_array_unicode(PyScannerObject *s, PyObject *pystr, Py_ssize_t idx, Py_ssi
break; break;
} }
else if (str[idx] != ',') { else if (str[idx] != ',') {
raise_errmsg("Expecting , delimiter", pystr, idx); raise_errmsg("Expecting ',' delimiter", pystr, idx);
goto bail; goto bail;
} }
idx++; idx++;