Nathan Vegdahl
c69ebc240f
A LineFormatter determines how a line of text is visually displayed in 2d space. This allows both the Console and GUI version of the editor to share the same buffer code whilst still handling the differing ways in which both handle visual display.
38 lines
1.1 KiB
Rust
38 lines
1.1 KiB
Rust
use std::io::{IoResult, BufferedReader, BufferedWriter};
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use std::io::fs::File;
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use std::path::Path;
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use buffer::line::{Line, LineEnding, line_ending_to_str};
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use line_formatter::LineFormatter;
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use buffer::Buffer as TextBuffer;
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pub fn load_file_to_buffer<T: LineFormatter>(path: &Path, lf: T) -> IoResult<TextBuffer<T>> {
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let mut tb = TextBuffer::new(lf);
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let mut f = BufferedReader::new(try!(File::open(path)));
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for line in f.lines() {
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let l = Line::new_from_string_unchecked(line.unwrap());
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if l.ending != LineEnding::None {
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tb.line_ending_type = l.ending;
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}
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tb.append_line_unchecked(l);
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}
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// Remove initial blank line
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tb.remove_lines(0, 1);
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return Ok(tb);
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}
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pub fn save_buffer_to_file<T: LineFormatter>(tb: &TextBuffer<T>, path: &Path) -> IoResult<()> {
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// TODO: make save atomic
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let mut iter = tb.line_iter();
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let mut f = BufferedWriter::new(try!(File::create(path)));
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for l in iter {
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let _ = f.write_str(l.as_str());
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let _ = f.write_str(line_ending_to_str(l.ending));
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}
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return Ok(());
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} |