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xo-reader: exprreplxx example program, now with line editing

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This commit is contained in:
Roland Conybeare 2025-07-05 16:16:16 -05:00
commit 3b3e8e495c
8 changed files with 165 additions and 10 deletions
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12
include/xo/reader/reader.hpp
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@ -18,8 +18,11 @@ namespace xo {
using Expression = xo::ast::Expression;
using span_type = span<const char>;
reader_result(rp<Expression> expr, span_type rem)
: expr_{std::move(expr)}, rem_{rem} {}
reader_result(rp<Expression> expr, span_type rem, std::size_t psz)
: expr_{std::move(expr)}, rem_{rem}, parser_stack_size_{psz} {}
/** true if reader parsed a complete expression **/
bool expr_complete() const { return expr_.get(); }
/** parsed schematica expression **/
rp<Expression> expr_;
@ -28,6 +31,11 @@ namespace xo {
* This is the span returned in result of tokenizer<char>::scan()
**/
span_type rem_;
/** parser nesting level when this result delivered
* will be zero whenever @ref expr_ is non-null
**/
std::size_t parser_stack_size_ = 0;
};
/**