add string vector support#56
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jianbingfang wants to merge 2 commits intoArashPartow:masterfrom
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Enable registration, access, assignment, and string operations on
string vector data. All changes guarded by exprtk_disable_string_capabilities.
New features:
- add_string_vector() / add_string_vector("name", vec, is_constant)
- names[] for size, names[i] for element access (const & dynamic index)
- names[0] := 'hello' element assignment with const protection
- names[0] + names[1] concatenation, 'foo' in names[0], names[0] like '*x*'
- names[2][1:5] substring range on elements
- igeneric_function 'L' parameter type for string vector arguments
- RTC (runtime check) variants for bounds checking
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
…ction Extends ExprTk generic function return type system with two new types: - e_rtrn_vector (3): function returns std::vector<T>, retrieved via expression::vec() - e_rtrn_str_vector (4): function returns std::vector<std::string>, retrieved via expression::strvec() Key changes: - igeneric_function: add e_rtrn_vector/e_rtrn_str_vector enum values and 4 new operator() overloads - New node classes: vector_function_node, multimode_vecfunction_node, str_vector_function_node, multimode_strvecfunction_node - New string_vector_interface<T> for dynamic_cast-based result retrieval - symbol_table: vector_function_store, str_vector_function_store, add_function routing, getters - Parser: parse_vector_function_call, parse_str_vector_function_call, symbol resolution routing - expression_generator: vector_function_call, str_vector_function_call synthesis methods - expression: vec() and strvec() retrieval APIs - All 23 exprtk_test cases pass; 47 string-vector tests pass; 28 new vec-return tests pass Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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This PR adds two major features to ExprTk: