#4164: Inaccurate tags recognition
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Reporter: tonnzor <[EMAIL PROTECTED]> | Owner: anonymous
Status: assigned | Component: Template
system
Version: SVN | Resolution:
Keywords: | Stage: Accepted
Has_patch: 0 | Needs_docs: 0
Needs_tests: 0 | Needs_better_patch: 0
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Changes (by tonnzor <[EMAIL PROTECTED]>):
* owner: adrian => anonymous
* status: new => assigned
Comment:
@Thomas Steinacher:
No. This template will be processed:
1. Splitted by tag_re regular expression (result: ['{{ "some text" #}',]
2. Parsed by Lexer.tokenize (result: ['{{ "some text" #}'])
3. Parsed by Lexer.create_token
Code for step 3:
{{{
if token_string.startswith(VARIABLE_TAG_START):
token = Token(TOKEN_VAR,
token_string[len(VARIABLE_TAG_START):-len(VARIABLE_TAG_END)].strip())
elif token_string.startswith(BLOCK_TAG_START):
token = Token(TOKEN_BLOCK,
token_string[len(BLOCK_TAG_START):-len(BLOCK_TAG_END)].strip())
elif token_string.startswith(COMMENT_TAG_START):
token = Token(TOKEN_COMMENT, '')
else:
token = Token(TOKEN_TEXT, token_string)
}}}
As you see - only the beginning is checked, and tag's end is cut (any 2
chars).
Provided example is edge case, but this bug can cause very strange errors.
I can provide move examples if needed.
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Ticket URL: <http://code.djangoproject.com/ticket/4164#comment:3>
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