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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.
84 lines
2.3 KiB
C++
84 lines
2.3 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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namespace Shell::AST {
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struct Command;
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class Node;
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class Value;
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class SyntaxError;
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class Pipeline;
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struct Rewiring;
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class NodeVisitor;
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class PathRedirectionNode;
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class And;
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class ListConcatenate;
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class Background;
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class BarewordLiteral;
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class BraceExpansion;
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class CastToCommand;
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class CastToList;
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class CloseFdRedirection;
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class CommandLiteral;
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class Comment;
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class DynamicEvaluate;
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class DoubleQuotedString;
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class Fd2FdRedirection;
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class FunctionDeclaration;
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class ForLoop;
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class Glob;
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class Execute;
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class IfCond;
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class Join;
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class MatchExpr;
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class Or;
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class Pipe;
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class Range;
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class ReadRedirection;
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class ReadWriteRedirection;
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class Sequence;
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class Subshell;
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class SimpleVariable;
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class SpecialVariable;
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class Juxtaposition;
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class StringLiteral;
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class StringPartCompose;
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class SyntaxError;
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class Tilde;
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class VariableDeclarations;
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class WriteAppendRedirection;
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class WriteRedirection;
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}
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namespace Shell {
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class Shell;
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}
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