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Diffstat (limited to 'src/url.rs')
| -rw-r--r-- | src/url.rs | 307 |
1 files changed, 0 insertions, 307 deletions
diff --git a/src/url.rs b/src/url.rs deleted file mode 100644 index d3caf9fc..00000000 --- a/src/url.rs +++ /dev/null @@ -1,307 +0,0 @@ -// Copyright 2016 Joe Wilm, The Alacritty Project Contributors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -use unicode_width::UnicodeWidthChar; -use url; - -use crate::term::cell::{Cell, Flags}; - -// See https://tools.ietf.org/html/rfc3987#page-13 -const URL_SEPARATOR_CHARS: [char; 10] = ['<', '>', '"', ' ', '{', '}', '|', '\\', '^', '`']; -const URL_DENY_END_CHARS: [char; 8] = ['.', ',', ';', ':', '?', '!', '/', '(']; -const URL_SCHEMES: [&str; 8] = ["http", "https", "mailto", "news", "file", "git", "ssh", "ftp"]; - -/// URL text and origin of the original click position. -#[derive(Debug, PartialEq)] -pub struct Url { - pub text: String, - pub origin: usize, -} - -/// Parser for streaming inside-out detection of URLs. -pub struct UrlParser { - state: String, - origin: usize, -} - -impl UrlParser { - pub fn new() -> Self { - UrlParser { state: String::new(), origin: 0 } - } - - /// Advance the parser one character to the left. - pub fn advance_left(&mut self, cell: &Cell) -> bool { - if cell.flags.contains(Flags::WIDE_CHAR_SPACER) { - self.origin += 1; - return false; - } - - if self.advance(cell.c, 0) { - true - } else { - self.origin += 1; - false - } - } - - /// Advance the parser one character to the right. - pub fn advance_right(&mut self, cell: &Cell) -> bool { - if cell.flags.contains(Flags::WIDE_CHAR_SPACER) { - return false; - } - - self.advance(cell.c, self.state.len()) - } - - /// Returns the URL if the parser has found any. - pub fn url(mut self) -> Option<Url> { - // Remove non-alphabetical characters before the scheme - // https://tools.ietf.org/html/rfc3986#section-3.1 - if let Some(index) = self.state.find("://") { - let iter = - self.state.char_indices().rev().skip_while(|(byte_index, _)| *byte_index >= index); - for (byte_index, c) in iter { - match c { - 'a'...'z' | 'A'...'Z' => (), - _ => { - self.origin = - self.origin.saturating_sub(byte_index + c.width().unwrap_or(1)); - self.state = self.state.split_off(byte_index + c.len_utf8()); - break; - }, - } - } - } - - // Remove non-matching parenthesis and brackets - let mut open_parens_count: isize = 0; - let mut open_bracks_count: isize = 0; - for (i, c) in self.state.char_indices() { - match c { - '(' => open_parens_count += 1, - ')' if open_parens_count > 0 => open_parens_count -= 1, - '[' => open_bracks_count += 1, - ']' if open_bracks_count > 0 => open_bracks_count -= 1, - ')' | ']' => { - self.state.truncate(i); - break; - }, - _ => (), - } - } - - // Track number of quotes - let mut num_quotes = self.state.chars().filter(|&c| c == '\'').count(); - - // Remove all characters which aren't allowed at the end of a URL - while !self.state.is_empty() - && (URL_DENY_END_CHARS.contains(&self.state.chars().last().unwrap()) - || (num_quotes % 2 != 0 && self.state.ends_with('\'')) - || self.state.ends_with("''") - || self.state.ends_with("()")) - { - if self.state.pop().unwrap() == '\'' { - num_quotes -= 1; - } - } - - // Check if string is valid url - match url::Url::parse(&self.state) { - Ok(url) => { - if URL_SCHEMES.contains(&url.scheme()) && self.origin > 0 { - Some(Url { origin: self.origin - 1, text: self.state }) - } else { - None - } - }, - Err(_) => None, - } - } - - fn advance(&mut self, c: char, pos: usize) -> bool { - if URL_SEPARATOR_CHARS.contains(&c) - || (c >= '\u{00}' && c <= '\u{1F}') - || (c >= '\u{7F}' && c <= '\u{9F}') - { - true - } else { - self.state.insert(pos, c); - false - } - } -} - -#[cfg(test)] -mod tests { - use std::mem; - - use unicode_width::UnicodeWidthChar; - - use crate::grid::Grid; - use crate::index::{Column, Line, Point}; - use crate::message_bar::MessageBuffer; - use crate::term::cell::{Cell, Flags}; - use crate::term::{Search, SizeInfo, Term}; - - fn url_create_term(input: &str) -> Term { - let size = SizeInfo { - width: 21.0, - height: 51.0, - cell_width: 3.0, - cell_height: 3.0, - padding_x: 0.0, - padding_y: 0.0, - dpr: 1.0, - }; - - let width = input.chars().map(|c| if c.width() == Some(2) { 2 } else { 1 }).sum(); - let mut term = Term::new(&Default::default(), size, MessageBuffer::new()); - let mut grid: Grid<Cell> = Grid::new(Line(1), Column(width), 0, Cell::default()); - - let mut i = 0; - for c in input.chars() { - grid[Line(0)][Column(i)].c = c; - - if c.width() == Some(2) { - grid[Line(0)][Column(i)].flags.insert(Flags::WIDE_CHAR); - grid[Line(0)][Column(i + 1)].flags.insert(Flags::WIDE_CHAR_SPACER); - grid[Line(0)][Column(i + 1)].c = ' '; - i += 1; - } - - i += 1; - } - - mem::swap(term.grid_mut(), &mut grid); - - term - } - - fn url_test(input: &str, expected: &str) { - let term = url_create_term(input); - let url = term.url_search(Point::new(0, Column(15))); - assert_eq!(url.map(|u| u.text), Some(expected.into())); - } - - #[test] - fn url_skip_invalid() { - let term = url_create_term("no url here"); - let url = term.url_search(Point::new(0, Column(4))); - assert_eq!(url, None); - - let term = url_create_term(" https://example.org"); - let url = term.url_search(Point::new(0, Column(0))); - assert_eq!(url, None); - } - - #[test] - fn url_origin() { - let term = url_create_term(" test https://example.org "); - let url = term.url_search(Point::new(0, Column(10))); - assert_eq!(url.map(|u| u.origin), Some(4)); - - let term = url_create_term("https://example.org"); - let url = term.url_search(Point::new(0, Column(0))); - assert_eq!(url.map(|u| u.origin), Some(0)); - - let term = url_create_term("https://全.org"); - let url = term.url_search(Point::new(0, Column(10))); - assert_eq!(url.map(|u| u.origin), Some(10)); - - let term = url_create_term("https://全.org"); - let url = term.url_search(Point::new(0, Column(8))); - assert_eq!(url.map(|u| u.origin), Some(8)); - - let term = url_create_term("https://全.org"); - let url = term.url_search(Point::new(0, Column(9))); - assert_eq!(url.map(|u| u.origin), Some(9)); - - let term = url_create_term("test@https://example.org"); - let url = term.url_search(Point::new(0, Column(9))); - assert_eq!(url.map(|u| u.origin), Some(4)); - - let term = url_create_term("test全https://example.org"); - let url = term.url_search(Point::new(0, Column(9))); - assert_eq!(url.map(|u| u.origin), Some(3)); - } - - #[test] - fn url_matching_chars() { - url_test("(https://example.org/test(ing))", "https://example.org/test(ing)"); - url_test("https://example.org/test(ing)", "https://example.org/test(ing)"); - url_test("((https://example.org))", "https://example.org"); - url_test(")https://example.org(", "https://example.org"); - url_test("https://example.org)", "https://example.org"); - url_test("https://example.org(", "https://example.org"); - url_test("(https://one.org/)(https://two.org/)", "https://one.org"); - - url_test("https://[2001:db8:a0b:12f0::1]:80", "https://[2001:db8:a0b:12f0::1]:80"); - url_test("([(https://example.org/test(ing))])", "https://example.org/test(ing)"); - url_test("https://example.org/]()", "https://example.org"); - url_test("[https://example.org]", "https://example.org"); - - url_test("'https://example.org/test'ing'''", "https://example.org/test'ing'"); - url_test("https://example.org/test'ing'", "https://example.org/test'ing'"); - url_test("'https://example.org'", "https://example.org"); - url_test("'https://example.org", "https://example.org"); - url_test("https://example.org'", "https://example.org"); - - url_test("(https://example.org/test全)", "https://example.org/test全"); - } - - #[test] - fn url_detect_end() { - url_test("https://example.org/test\u{00}ing", "https://example.org/test"); - url_test("https://example.org/test\u{1F}ing", "https://example.org/test"); - url_test("https://example.org/test\u{7F}ing", "https://example.org/test"); - url_test("https://example.org/test\u{9F}ing", "https://example.org/test"); - url_test("https://example.org/test\ting", "https://example.org/test"); - url_test("https://example.org/test ing", "https://example.org/test"); - } - - #[test] - fn url_remove_end_chars() { - url_test("https://example.org/test?ing", "https://example.org/test?ing"); - url_test("https://example.org.,;:)'!/?", "https://example.org"); - url_test("https://example.org'.", "https://example.org"); - } - - #[test] - fn url_remove_start_chars() { - url_test("complicated:https://example.org", "https://example.org"); - url_test("test.https://example.org", "https://example.org"); - url_test(",https://example.org", "https://example.org"); - url_test("\u{2502}https://example.org", "https://example.org"); - } - - #[test] - fn url_unicode() { - url_test("https://xn--example-2b07f.org", "https://xn--example-2b07f.org"); - url_test("https://example.org/\u{2008A}", "https://example.org/\u{2008A}"); - url_test("https://example.org/\u{f17c}", "https://example.org/\u{f17c}"); - url_test("https://üñîçøðé.com/ä", "https://üñîçøðé.com/ä"); - } - - #[test] - fn url_schemes() { - url_test("mailto://example.org", "mailto://example.org"); - url_test("https://example.org", "https://example.org"); - url_test("http://example.org", "http://example.org"); - url_test("news://example.org", "news://example.org"); - url_test("file://example.org", "file://example.org"); - url_test("git://example.org", "git://example.org"); - url_test("ssh://example.org", "ssh://example.org"); - url_test("ftp://example.org", "ftp://example.org"); - } -} |