@spec find_backtick_end(String.t(), non_neg_integer()) :: non_neg_integer()

Find the closing backtick for a backtick-style command substitution.

Parameters

• value - The string to search in
• start - Position after the opening backtick

Returns

Position of the closing backtick.

Examples

iex> find_backtick_end("`echo hi`", 1)
8

@spec find_double_paren_end(String.t(), non_neg_integer()) :: non_neg_integer()

Find the end of a double-parenthesis arithmetic expression )).

Handles nested (( )) arithmetic expressions and single parentheses for grouping within the expression.

Parameters

• value - The string to search in
• start - Position of the first character inside $((

Returns

Position of the first ) in the closing )).

Examples

iex> find_double_paren_end("$((1+2))", 3)
5

iex> find_double_paren_end("$((1+((2+3))))", 3)
11

@spec find_glob_bracket_end(String.t(), non_neg_integer()) ::
  {:ok, non_neg_integer()} | :error

Find the end of a glob bracket pattern [...].

Parameters

• value - The string to search in
• start - Position of the opening bracket

Returns

{:ok, position} of the closing bracket, or :error if not found.

Examples

iex> find_glob_bracket_end("[abc]", 0)
{:ok, 4}

iex> find_glob_bracket_end("[a-z]", 0)
{:ok, 4}

@spec find_matching_brace(String.t(), non_neg_integer()) :: non_neg_integer()

Find the matching closing brace } for an opening brace {.

Parameters

• value - The string to search in
• start - Position of the opening brace

Returns

Position of the matching closing brace.

Examples

iex> find_matching_brace("${foo}", 1)
5

iex> find_matching_brace("${a:-${b}}", 1)
9

@spec find_matching_bracket(String.t(), non_neg_integer()) :: non_neg_integer()

Find the matching closing bracket ] for an opening bracket [.

Parameters

• value - The string to search in
• start - Position of the opening bracket

Returns

Position of the matching closing bracket.

Examples

iex> find_matching_bracket("arr[0]", 3)
5

iex> find_matching_bracket("arr[i+1]", 3)
7

@spec find_matching_paren(String.t(), non_neg_integer()) :: non_neg_integer()

Find the matching closing parenthesis ) for an opening parenthesis (.

Parameters

• value - The string to search in
• start - Position of the opening parenthesis

Returns

Position of the matching closing parenthesis.

Examples

iex> find_matching_paren("$(echo hi)", 1)
9

iex> find_matching_paren("$(echo $(pwd))", 1)
13