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author | Rowan Tommins <git@rwec.co.uk> | 2020-06-11 20:56:22 +0100 |
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committer | Nikita Popov <nikita.ppv@gmail.com> | 2020-07-13 11:07:40 +0200 |
commit | 55a15f32ced0bd2467e6dec0c1287a4f11b1852f (patch) | |
tree | a88ec4ac9a7c7480fa877b8248cfdfb5c178ea00 /configure.ac | |
parent | d4fdf79add800b4c529e6a31f2a0ff665b8b97ce (diff) | |
download | php-git-55a15f32ced0bd2467e6dec0c1287a4f11b1852f.tar.gz |
Improve output of tokens in Parse Errors
Currently, unexpected tokens in the parser are shown as the text
found, plus the internal token name, including the notorious
"unexpected '::' (T_PAAMAYIM_NEKUDOTAYIM)".
This commit replaces that with a more user-friendly format, with
two main types of token:
* Tokens which always represent the same text are shown like
'unexpected token "::"' and 'expected "::"'
* Tokens which have variable text are given a user-friendly
name, and show like 'unexpected identifier "foo"', and
'expected identifer'.
A few tokens have special cases:
* unexpected token """ -> unexpected double-quote mark
* unexpected quoted string "'foo'" -> unexpected single-quoted
string "foo"
* unexpected quoted string ""foo"" -> unexpected double-quoted
string "foo"
* unexpected illegal character "_" -> unexpected character 0xNN
(where _ is almost certainly a control character, and NN is the
hexadecimal value of the byte)
The \ token has a special case in the implementation just to stop
bison making a mess of escaping it and it coming out as \\
Diffstat (limited to 'configure.ac')
0 files changed, 0 insertions, 0 deletions