MDEV-36107 MDEV-36108 Enhance mysqltest language with expression evaluation and variable substitutions

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mysqltest had limited scripting capabilities, requiring complex
workarounds for mathematical calculations and string manipulations
in test cases. This commit solves these limitations by adding a new
`$(...)` syntax that enables direct evaluation of mathematical, logical,
and string expressions within test scripts.

Expression Evaluation (MDEV-36107):
- Recursive descent parser supporting arithmetic, logical, comparison,
  and bitwise operators with proper precedence
- Support for integers (decimal, hex, binary), booleans, strings, and
  NULL values
- Variable substitution within expressions
- Integration with existing mysqltest control flow

String Functions (MDEV-36108):
- Base conversion functions supporting bases 2-62
- String manipulation and processing functions
- Regular expression functions
- Conditional and numeric utility functions

The implementation enhances mysqltest's scripting capabilities while
maintaining full backward compatibility.

...

This commit is contained in:

KhaledR57 2025-06-13 17:39:40 +03:00 • committed by Oleksandr "Sanja" Byelkin

parent 5f6109abe5

commit 7ae02de3a5

5 changed files with 7488 additions and 107 deletions

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