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5640e1bc3a
This adds support for (basic) brace expansions with the following
syntaxes:
- `{expr?,expr?,expr?,...}` which is directly equivalent to `(expr expr
expr ...)`, with the missing expressions replaced with an empty string
literal.
- `{expr..expr}` which is a new range expansion, with two modes:
- if both expressions are one unicode code point long, the range is
equivalent to the two code points and all code points between the
two (numerically).
- if both expressions are numeric, the range is equivalent to both
numbers, and all numbers between the two.
- otherwise, it is equivalent to `(expr expr)`.
Closes #3832.
75 lines
3.3 KiB
C++
75 lines
3.3 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "Forward.h"
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namespace Shell::AST {
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class NodeVisitor {
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public:
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virtual void visit(const AST::PathRedirectionNode*);
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virtual void visit(const AST::And*);
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virtual void visit(const AST::ListConcatenate*);
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virtual void visit(const AST::Background*);
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virtual void visit(const AST::BarewordLiteral*);
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virtual void visit(const AST::BraceExpansion*);
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virtual void visit(const AST::CastToCommand*);
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virtual void visit(const AST::CastToList*);
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virtual void visit(const AST::CloseFdRedirection*);
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virtual void visit(const AST::CommandLiteral*);
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virtual void visit(const AST::Comment*);
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virtual void visit(const AST::DynamicEvaluate*);
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virtual void visit(const AST::DoubleQuotedString*);
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virtual void visit(const AST::Fd2FdRedirection*);
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virtual void visit(const AST::FunctionDeclaration*);
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virtual void visit(const AST::ForLoop*);
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virtual void visit(const AST::Glob*);
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virtual void visit(const AST::Execute*);
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virtual void visit(const AST::IfCond*);
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virtual void visit(const AST::Join*);
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virtual void visit(const AST::MatchExpr*);
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virtual void visit(const AST::Or*);
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virtual void visit(const AST::Pipe*);
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virtual void visit(const AST::Range*);
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virtual void visit(const AST::ReadRedirection*);
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virtual void visit(const AST::ReadWriteRedirection*);
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virtual void visit(const AST::Sequence*);
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virtual void visit(const AST::Subshell*);
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virtual void visit(const AST::SimpleVariable*);
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virtual void visit(const AST::SpecialVariable*);
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virtual void visit(const AST::Juxtaposition*);
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virtual void visit(const AST::StringLiteral*);
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virtual void visit(const AST::StringPartCompose*);
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virtual void visit(const AST::SyntaxError*);
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virtual void visit(const AST::Tilde*);
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virtual void visit(const AST::VariableDeclarations*);
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virtual void visit(const AST::WriteAppendRedirection*);
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virtual void visit(const AST::WriteRedirection*);
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};
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}
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