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7d5b44e828
This adds initial support for statements with prefixed variable assignments.
Statments like this are supported:
a=1 b=$a echo $b # outputs 1
Just like in other shells, the left-hand side of each assignment must
be a valid variable identifier (no quoting/escaping). Array indexing
(PATH[1]=/bin ls $PATH) is *not* yet supported, but can be added fairly
easily.
The right hand side may be any valid string token, like a command
substitution, or a brace expansion.
Since `a=* foo` is equivalent to `begin set -lx a *; foo; end`,
the assignment, like `set`, uses nullglob behavior, e.g. below command
can safely be used to check if a directory is empty.
x=/nothing/{,.}* test (count $x) -eq 0
Generic file completion is done after the equal sign, so for example
pressing tab after something like `HOME=/` completes files in the
root directory
Subcommand completion works, so something like
`GIT_DIR=repo.git and command git ` correctly calls git completions
(but the git completion does not use the variable as of now).
The variable assignment is highlighted like an argument.
Closes #6048
38 lines
785 B
PHP
38 lines
785 B
PHP
// Define ELEM before including this file.
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ELEM(job_list)
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ELEM(job)
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ELEM(job_decorator)
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ELEM(job_conjunction)
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ELEM(job_conjunction_continuation)
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ELEM(job_continuation)
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ELEM(statement)
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ELEM(if_statement)
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ELEM(if_clause)
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ELEM(else_clause)
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ELEM(else_continuation)
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ELEM(switch_statement)
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ELEM(case_item_list)
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ELEM(case_item)
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ELEM(block_statement)
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ELEM(block_header)
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ELEM(for_header)
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ELEM(while_header)
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ELEM(begin_header)
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ELEM(function_header)
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ELEM(not_statement)
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ELEM(andor_job_list)
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ELEM(decorated_statement)
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ELEM(variable_assignment)
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ELEM(variable_assignments)
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ELEM(plain_statement)
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ELEM(argument_list)
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ELEM(arguments_or_redirections_list)
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ELEM(argument)
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ELEM(redirection)
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ELEM(optional_background)
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ELEM(optional_newlines)
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ELEM(end_command)
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ELEM(freestanding_argument_list)
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#undef ELEM
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