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Allow the '-' in the expression key parser #999

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merged 7 commits into from
Aug 4, 2020
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@tobim tobim commented Jul 31, 2020

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@tobim tobim added the bug Incorrect behavior label Jul 31, 2020
@tobim tobim requested a review from mavam July 31, 2020 14:52
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mavam commented Aug 1, 2020

Should - really be allowed to be at the beginning of a field name? What are the consequences for the language, given that a field can be either on LHS and RHS? What are the implications for allowing arithmetic on operands?

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tobim commented Aug 3, 2020

@mavam I changed the code so '-' is not allowed as the first character any longer.

The last commit moves the entire implementation of the parser to the .cpp file. This is done with the intention to reduce coupling and compile times.

libvast/vast/concept/parseable/vast/expression.hpp Outdated Show resolved Hide resolved
auto operand
= parsers::data ->* to_data_operand
= (parsers::data >> !key_char) ->* to_data_operand
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Is end-of-input (eoi) also "not a key char"?

That is, does it work when the operand is either LHS or RHS?

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eoi is not a char. If data consumed the last character, key_char will fail no matter what it is composed of.

@tobim tobim force-pushed the topic/expression-key-dash branch from 7778e6c to 2becb72 Compare August 4, 2020 12:36
@tobim tobim merged commit 4953037 into master Aug 4, 2020
@tobim tobim deleted the topic/expression-key-dash branch August 4, 2020 13:57
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