Struct add_ed::buffer::VecBuffer

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pub struct VecBuffer { /* private fields */ }

Expand description

VecBuffer, the default Buffer implementation

It is based on storing the text in a Vector of lines. Regex functionality is imported from the Regex crate.

Implementations

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impl VecBuffer

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pub fn new() -> Self

Create a new empty buffer. It is considered saved while unchanged.

Trait Implementations

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impl Buffer for VecBuffer

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fn len(&self) -> usize

Return the number of lines stored in the buffer

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fn get_tag(&self, tag: char) -> Result<usize, &'static str>

Get line tagged with given letter. Not found is error

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fn get_matching(
 &self,
 pattern: &str,
 curr_line: usize,
 backwards: bool
) -> Result<usize, &'static str>

Return the nearest previous/following index in the selection that contains the regex pattern

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fn mark_matching(
 &mut self,
 pattern: &str,
 selection: (usize, usize ),
 inverse: bool
) -> Result<(), &'static str>

Set the matched flag on all lines matching given pattern

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fn get_marked(&mut self) -> Result<Option<usize>, &'static str>

Get a line with the matched flag set, clearing that line’s flag

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fn tag_line(&mut self, index: usize, tag: char) -> Result<(), &'static str>

Mark a line with a letter, mark with ‘\0’ to clear

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fn insert<'a>(
 &mut self,
 data: &mut dyn Iterator<Item = &'a str>,
 index: usize
) -> Result<(), &'static str>

Takes a iterator over lines in strings and inserts after given index

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fn cut(&mut self, selection: (usize, usize )) -> Result<(), &'static str>

Cut the selection from the buffer, into the clipboard

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fn change<'a>(
 &mut self,
 data: &mut dyn Iterator<Item = &'a str>,
 selection: (usize, usize )
) -> Result<(), &'static str>

Replace selection with input

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fn mov(
 &mut self,
 selection: (usize, usize ),
 index: usize
) -> Result<(), &'static str>

Move selection to immediately after index

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fn mov_copy(
 &mut self,
 selection: (usize, usize ),
 index: usize
) -> Result<(), &'static str>

Insert a copy of the selection immediately after index

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fn join(&mut self, selection: (usize, usize )) -> Result<(), &'static str>

Join all lines in selection into one line

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fn copy(&mut self, selection: (usize, usize )) -> Result<(), &'static str>

Copy selected lines into clipboard

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fn paste(&mut self, index: usize) -> Result<usize, &'static str>

Paste the clipboard contents after given index Leave clipboard unchanged Read more

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fn search_replace(
 &mut self,
 pattern: (&str, &str ),
 selection: (usize, usize ),
 global: bool
) -> Result<usize, &'static str>

Perform regex search and replace on the selection changing pattern.0 to pattern.1 Should interpret escape sequences in both patterns. At minimum \n and \. If pattern is empty, should re-use stored pattern from previous s command Returns new end of selection, since it may delete or add lines Beware that it may delete the whole selection just as ‘c’ Read more

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fn read_from(
 &mut self,
 path: &str,
 index: Option<usize>,
 must_exist: bool
) -> Result<usize, &'static str>

Read to the buffer from given path If index is None replaces current buffer with read lines Else inserts read lines after given index Return number of lines read Read more

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