54bf8cd3-fa5f-46be-85f2-1de8e23f9bb5
commented
7 years ago https://docs.python.org/3/reference/lexical_analysis.html#identifiers has a grammar.
identifier ::= xid_start xid_continue*
id_start ::= <all characters in general categories Lu, Ll, Lt, Lm, Lo, Nl, the underscore, and characters with the Other_ID_Start property>
id_continue ::= <all characters in id_start, plus characters in the categories Mn, Mc, Nd, Pc and others with the Other_ID_Continue property>
xid_start ::= <all characters in id_start whose NFKC normalization is in "id_start xid_continue*">
xid_continue ::= <all characters in id_continue whose NFKC normalization is in "id_continue*">I struggle to make sense of it unless I remove xid_continue*' fromxid_start's definition.
I suspect it ended up there due to cut and paste.
zhangyangyu
Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.
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GitHub fields: ```python assignee = None closed_at = None created_at =
labels = ['docs']
title = 'xid_start definition for Unicode identifiers refers to xid_continue'
updated_at =
user = 'https://bugs.python.org/ralphcorderoy'
```
bugs.python.org fields:
```python
activity =
actor = 'xiang.zhang'
assignee = 'docs@python'
closed = False
closed_date = None
closer = None
components = ['Documentation']
creation =
creator = 'ralph.corderoy'
dependencies = []
files = []
hgrepos = []
issue_num = 30128
keywords = []
message_count = 2.0
messages = ['292049', '292592']
nosy_count = 4.0
nosy_names = ['loewis', 'ralph.corderoy', 'docs@python', 'xiang.zhang']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue30128'
versions = ['Python 3.6']
```