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//! The Menu is a View representing a Gopher menu. It renders the
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//! colorful representation, manages the cursor and selection state,
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//! and responds to input like the UP and DOWN arrows or other key
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//! combinations.
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//!
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//! The Menu doesn't draw or perform any actions on its own, instead
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//! it returns an Action to the UI representing its intent.
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use crate::ui::{self, Action, Key, View, MAX_COLS, SCROLL_LINES};
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use crate::{
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config::Config,
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gopher::{self, Type},
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};
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use std::fmt;
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use termion::{clear, cursor};
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/// The Menu holds our Gopher Lines, a list of links, and maintains
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/// both where the cursor is on screen and which lines need to be
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/// drawn on screen. While the main UI can be used to prompt the user
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/// for input, the Menu maintains its own `input` for the "quick
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/// navigation" feature using number entry and the "incremental search"
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/// (over menu links) feature using text entry.
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pub struct Menu {
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pub url: String, // gopher url
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pub lines: Vec<Line>, // lines
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pub links: Vec<usize>, // links (index of line in lines vec)
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pub longest: usize, // size of the longest line
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pub raw: String, // raw response
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pub input: String, // user's inputted value
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pub mode: ui::Mode, // interactive or print mode?
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pub link: usize, // selected link
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pub scroll: usize, // scrolling offset
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pub searching: bool, // search mode?
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pub tls: bool, // retrieved via tls?
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pub tor: bool, // retrieved via tor?
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pub size: (usize, usize), // cols, rows
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pub wide: bool, // in wide mode?
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}
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/// The Line represents a single line in a Gopher menu.
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/// It must exist in the context of a Menu struct, and its `link`
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/// field will point to its index in the Menu's `links` Vec.
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pub struct Line {
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pub name: String,
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pub url: String,
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pub typ: Type,
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pub link: usize, // link #, if any
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}
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/// Direction of a given link relative to the visible screen.
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#[derive(PartialEq)]
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enum LinkPos {
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Above,
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Below,
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Visible,
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}
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impl fmt::Display for Menu {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "{}", self.url())
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}
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}
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impl View for Menu {
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fn is_tls(&self) -> bool {
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self.tls
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}
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fn is_tor(&self) -> bool {
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self.tor
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}
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fn raw(&self) -> String {
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self.raw.to_string()
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}
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fn render(&mut self, cfg: &Config) -> String {
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self.render_lines(cfg)
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}
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fn respond(&mut self, key: Key) -> Action {
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self.process_key(key)
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}
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fn term_size(&mut self, cols: usize, rows: usize) {
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self.size = (cols, rows);
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}
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fn url(&self) -> String {
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self.url.to_string()
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}
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}
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impl Menu {
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pub fn from(url: String, response: String, tls: bool, tor: bool) -> Menu {
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Menu {
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tls,
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tor,
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..Self::parse(url, response)
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}
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}
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fn cols(&self) -> usize {
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self.size.0
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}
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fn rows(&self) -> usize {
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self.size.1
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}
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/// Calculated size of left margin.
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fn indent(&self) -> usize {
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if self.wide {
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return 0;
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}
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let cols = self.cols();
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let longest = if self.longest > MAX_COLS {
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MAX_COLS
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} else {
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self.longest
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};
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if longest > cols {
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0
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} else {
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let left = (cols - longest) / 2;
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if left > 6 {
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left - 6
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} else {
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0
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}
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}
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}
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/// Find a link by its link index.
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fn link(&self, i: usize) -> Option<&Line> {
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let line = self.links.get(i)?;
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self.lines.get(*line)
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}
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/// Is the given link visible on screen?
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fn is_visible(&self, link: usize) -> bool {
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self.link_visibility(link) == Some(LinkPos::Visible)
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}
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/// Where is the given link relative to the screen?
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fn link_visibility(&self, i: usize) -> Option<LinkPos> {
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let &pos = self.links.get(i)?;
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Some(if pos < self.scroll {
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LinkPos::Above
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} else if pos >= self.scroll + self.rows() - 1 {
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LinkPos::Below
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} else {
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LinkPos::Visible
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})
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}
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/// The x and y position of a given link on screen.
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fn screen_coords(&self, link: usize) -> Option<(u16, u16)> {
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if !self.is_visible(link) {
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return None;
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}
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let &pos = self.links.get(link)?;
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let x = self.indent() + 1;
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let y = if self.scroll > pos {
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pos + 1
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} else {
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pos + 1 - self.scroll
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};
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Some((x as u16, y as u16))
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}
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fn render_lines(&mut self, cfg: &Config) -> String {
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self.wide = cfg.wide;
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self.mode = cfg.mode;
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let mut out = String::new();
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let limit = if self.mode == ui::Mode::Run {
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// only show as many lines as screen rows minus one
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// (status bar is always last line)
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self.rows() - 1
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} else {
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self.lines.len()
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};
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let iter = self.lines.iter().skip(self.scroll).take(limit);
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let indent = self.indent();
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let left_margin = " ".repeat(indent);
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for line in iter {
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out.push_str(&left_margin);
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if line.typ == Type::Info {
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out.push_str(" ");
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} else {
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if line.link == self.link && self.show_cursor() {
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out.push_str(&color!("*", Bold))
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} else {
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out.push(' ');
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}
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out.push(' ');
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out.push_str("\x1b[95m");
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if line.link < 9 {
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out.push(' ');
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}
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let num = (line.link + 1).to_string();
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out.push_str(&num);
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out.push_str(".\x1b[0m ");
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}
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// truncate long lines, instead of wrapping
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let name = if line.name.len() > MAX_COLS {
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line.name.chars().take(MAX_COLS).collect::<String>()
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} else {
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line.name.to_string()
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};
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// color the line
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out.push_str(&match line.typ {
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Type::Text => color!(name, Cyan),
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Type::Menu => color!(name, Blue),
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Type::Info => color!(name, Yellow),
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Type::HTML => color!(name, Green),
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Type::Error => color!(name, Red),
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Type::Telnet => color!(name, Grey),
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typ if typ.is_download() => color!(name, Underline, White),
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typ if !typ.is_supported() => color!(name, Red, WhiteBG),
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_ => name,
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});
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// clear rest of line
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out.push_str(&format!("{}", clear::UntilNewline));
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out.push_str("\r\n");
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}
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// clear remainder of screen
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out.push_str(&format!("{}", clear::AfterCursor));
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out
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}
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/// Clear and re-draw the cursor.
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fn reset_cursor(&mut self, old_link: usize) -> Action {
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if self.links.is_empty() {
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return Action::None;
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}
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let mut out = String::new();
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if let Some(clear) = self.clear_cursor(old_link) {
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out.push_str(clear.as_ref());
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}
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if let Some(cursor) = self.draw_cursor() {
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out.push_str(cursor.as_ref());
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}
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Action::Draw(out)
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}
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/// Clear the cursor, if it's on screen.
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fn clear_cursor(&self, link: usize) -> Option<String> {
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if self.links.is_empty() || !self.is_visible(link) {
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return None;
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}
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let (x, y) = self.screen_coords(link)?;
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Some(format!("{} {}", cursor::Goto(x, y), cursor::Hide))
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}
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/// Print this string to draw the cursor on screen.
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/// Returns None if no is link selected.
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fn draw_cursor(&self) -> Option<String> {
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if self.links.is_empty() || !self.show_cursor() {
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return None;
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}
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let (x, y) = self.screen_coords(self.link)?;
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Some(format!(
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"{}\x1b[97;1m*\x1b[0m{}",
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cursor::Goto(x, y),
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cursor::Hide
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))
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}
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/// Should we show the cursor? Not when printing.
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fn show_cursor(&self) -> bool {
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self.mode == ui::Mode::Run
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}
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/// User input field.
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fn render_input(&self) -> String {
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format!("Find: {}{}", self.input, cursor::Show)
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}
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fn redraw_input(&self) -> Action {
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if self.searching {
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Action::Status(self.render_input())
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} else {
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Action::Status(format!("{}", cursor::Hide))
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}
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}
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/// Scroll down by SCROLL_LINES, if possible.
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fn action_page_down(&mut self) -> Action {
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// If there are fewer menu items than screen lines, just
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// select the final link and do nothing else.
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if self.lines.len() < self.rows() {
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if !self.links.is_empty() {
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self.link = self.links.len() - 1;
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return Action::Redraw;
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}
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return Action::None;
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}
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// If we've already scrolled too far, select the final link
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// and do nothing.
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if self.scroll >= self.final_scroll() {
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self.scroll = self.final_scroll();
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self.link = self.links.len() - 1;
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return Action::Redraw;
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}
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// Scroll...
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self.scroll += SCROLL_LINES;
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// ...but don't go past the final line.
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if self.scroll > self.final_scroll() {
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self.scroll = self.final_scroll();
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}
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// If the selected link isn't visible...
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if Some(LinkPos::Above) == self.link_visibility(self.link) {
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// ...find the next one that is.
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if let Some(&next_link_pos) = self
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.links
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.iter()
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.skip(self.link + 1)
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.find(|&&i| i >= self.scroll)
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{
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if let Some(next_link_line) = self.lines.get(next_link_pos) {
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self.link = next_link_line.link;
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}
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}
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}
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Action::Redraw
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}
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fn action_page_up(&mut self) -> Action {
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if self.scroll > 0 {
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if self.scroll > SCROLL_LINES {
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self.scroll -= SCROLL_LINES;
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} else {
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self.scroll = 0;
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}
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if self.link == 0 {
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return Action::Redraw;
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}
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if let Some(dir) = self.link_visibility(self.link) {
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match dir {
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LinkPos::Below => {
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let scroll = self.scroll;
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if let Some(&pos) = self
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.links
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.iter()
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.take(self.link)
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.rev()
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.find(|&&i| i < (self.rows() + scroll - 1))
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{
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self.link = self.lines.get(pos).unwrap().link;
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}
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}
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LinkPos::Above => {}
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LinkPos::Visible => {}
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}
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}
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Action::Redraw
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} else if self.link > 0 {
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self.link = 0;
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Action::Redraw
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} else {
|
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Action::None
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}
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}
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fn action_up(&mut self) -> Action {
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// no links, just scroll up
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if self.link == 0 {
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return if self.scroll > 0 {
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self.scroll -= 1;
|
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Action::Redraw
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} else if !self.links.is_empty() {
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self.link = self.links.len() - 1;
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self.scroll_to(self.link);
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Action::Redraw
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} else {
|
|
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Action::None
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};
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}
|
|
|
|
|
|
// if text is entered, find previous match
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if self.searching && !self.input.is_empty() {
|
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if let Some(pos) = self.rlink_matching(self.link, &self.input) {
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return self.action_select_link(pos);
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} else {
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|
|
return Action::None;
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|
|
}
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|
|
}
|
|
|
|
|
|
let new_link = self.link - 1;
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|
|
if let Some(dir) = self.link_visibility(new_link) {
|
|
|
match dir {
|
|
|
LinkPos::Above => {
|
|
|
// scroll up by 1
|
|
|
if self.scroll > 0 {
|
|
|
self.scroll -= 1;
|
|
|
}
|
|
|
// select it if it's visible now
|
|
|
if self.is_visible(new_link) {
|
|
|
self.link = new_link;
|
|
|
}
|
|
|
}
|
|
|
LinkPos::Below => {
|
|
|
// jump to link....
|
|
|
if let Some(&pos) = self.links.get(new_link) {
|
|
|
self.scroll = pos;
|
|
|
self.link = new_link;
|
|
|
}
|
|
|
}
|
|
|
LinkPos::Visible => {
|
|
|
// select next link up
|
|
|
let old_link = self.link;
|
|
|
self.link = new_link;
|
|
|
// scroll if we are within 5 lines of the top
|
|
|
if let Some(&pos) = self.links.get(self.link) {
|
|
|
if self.scroll > 0 && pos < self.scroll + 5 {
|
|
|
self.scroll -= 1;
|
|
|
} else {
|
|
|
// otherwise redraw just the cursor
|
|
|
return self.reset_cursor(old_link);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
Action::Redraw
|
|
|
} else {
|
|
|
Action::None
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/// Final `self.scroll` value.
|
|
|
fn final_scroll(&self) -> usize {
|
|
|
let padding = (self.rows() as f64 * 0.9) as usize;
|
|
|
if self.lines.len() > padding {
|
|
|
self.lines.len() - padding
|
|
|
} else {
|
|
|
0
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/// Search through links to find a match based on the pattern,
|
|
|
/// starting at link position `start`. returns the link position.
|
|
|
fn link_matching(&self, start: usize, pattern: &str) -> Option<usize> {
|
|
|
self.link_match_with_iter(pattern, &mut self.links.iter().skip(start))
|
|
|
}
|
|
|
|
|
|
/// Search backwards through all links.
|
|
|
fn rlink_matching(&self, start: usize, pattern: &str) -> Option<usize> {
|
|
|
self.link_match_with_iter(pattern, &mut self.links.iter().take(start).rev())
|
|
|
}
|
|
|
|
|
|
fn link_match_with_iter<'a, T>(&self, pattern: &str, it: &mut T) -> Option<usize>
|
|
|
where
|
|
|
T: std::iter::Iterator<Item = &'a usize>,
|
|
|
{
|
|
|
let pattern = pattern.to_ascii_lowercase();
|
|
|
for &pos in it {
|
|
|
let line = self.lines.get(pos)?;
|
|
|
if line.name.to_ascii_lowercase().contains(&pattern) {
|
|
|
return Some(line.link);
|
|
|
}
|
|
|
}
|
|
|
None
|
|
|
}
|
|
|
|
|
|
fn action_down(&mut self) -> Action {
|
|
|
let new_link = self.link + 1;
|
|
|
|
|
|
// no links or final link selected already
|
|
|
if self.links.is_empty() || new_link >= self.links.len() {
|
|
|
// if there are more rows, scroll down
|
|
|
if self.lines.len() >= self.rows() && self.scroll < self.final_scroll() {
|
|
|
self.scroll += 1;
|
|
|
return Action::Redraw;
|
|
|
} else if !self.links.is_empty() {
|
|
|
// wrap around
|
|
|
self.link = 0;
|
|
|
self.scroll = 0;
|
|
|
return Action::Redraw;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// if text is entered, find next match
|
|
|
if self.searching && !self.input.is_empty() {
|
|
|
if let Some(pos) = self.link_matching(self.link + 1, &self.input) {
|
|
|
return self.action_select_link(pos);
|
|
|
} else {
|
|
|
return Action::None;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if self.link < self.links.len() {
|
|
|
if let Some(dir) = self.link_visibility(new_link) {
|
|
|
match dir {
|
|
|
LinkPos::Above => {
|
|
|
// jump to link....
|
|
|
if let Some(&pos) = self.links.get(new_link) {
|
|
|
self.scroll = pos;
|
|
|
self.link = new_link;
|
|
|
}
|
|
|
}
|
|
|
LinkPos::Below => {
|
|
|
// scroll down by 1
|
|
|
self.scroll += 1;
|
|
|
// select it if it's visible now
|
|
|
if self.is_visible(new_link) {
|
|
|
self.link = new_link;
|
|
|
}
|
|
|
}
|
|
|
LinkPos::Visible => {
|
|
|
// link is visible, so select it
|
|
|
if let Some(&pos) = self.links.get(self.link) {
|
|
|
let old_link = self.link;
|
|
|
self.link = new_link;
|
|
|
|
|
|
// scroll if we are within 5 lines of the end
|
|
|
if self.lines.len() >= self.rows() // dont scroll if content too small
|
|
|
&& pos >= self.scroll + self.rows() - 6
|
|
|
{
|
|
|
self.scroll += 1;
|
|
|
} else {
|
|
|
// otherwise try to just re-draw the cursor
|
|
|
return self.reset_cursor(old_link);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
Action::Redraw
|
|
|
} else {
|
|
|
Action::None
|
|
|
}
|
|
|
} else {
|
|
|
Action::None
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/// Select and optionally scroll to a link.
|
|
|
fn action_select_link(&mut self, link: usize) -> Action {
|
|
|
if let Some(&pos) = self.links.get(link) {
|
|
|
let old_link = self.link;
|
|
|
self.link = link;
|
|
|
if self.is_visible(link) {
|
|
|
if !self.input.is_empty() {
|
|
|
Action::List(vec![self.redraw_input(), self.reset_cursor(old_link)])
|
|
|
} else {
|
|
|
self.reset_cursor(old_link)
|
|
|
}
|
|
|
} else {
|
|
|
if pos > 5 {
|
|
|
self.scroll = pos - 5;
|
|
|
} else {
|
|
|
self.scroll = 0;
|
|
|
}
|
|
|
if !self.input.is_empty() {
|
|
|
Action::List(vec![self.redraw_input(), Action::Redraw])
|
|
|
} else {
|
|
|
Action::Redraw
|
|
|
}
|
|
|
}
|
|
|
} else {
|
|
|
Action::None
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/// Select and open link.
|
|
|
fn action_follow_link(&mut self, link: usize) -> Action {
|
|
|
self.action_select_link(link);
|
|
|
self.action_open()
|
|
|
}
|
|
|
|
|
|
/// Scroll to a link if it's not visible.
|
|
|
fn scroll_to(&mut self, link: usize) -> Action {
|
|
|
if !self.is_visible(link) {
|
|
|
if let Some(&pos) = self.links.get(link) {
|
|
|
if pos > 5 {
|
|
|
self.scroll = pos - 5;
|
|
|
} else {
|
|
|
self.scroll = 0;
|
|
|
}
|
|
|
if self.scroll > self.final_scroll() {
|
|
|
self.scroll = self.final_scroll();
|
|
|
}
|
|
|
return Action::Redraw;
|
|
|
}
|
|
|
}
|
|
|
Action::None
|
|
|
}
|
|
|
|
|
|
/// Open the currently selected link.
|
|
|
fn action_open(&mut self) -> Action {
|
|
|
// if the selected link isn't visible, jump to it:
|
|
|
if !self.is_visible(self.link) {
|
|
|
return self.scroll_to(self.link);
|
|
|
}
|
|
|
|
|
|
self.searching = false;
|
|
|
self.input.clear();
|
|
|
|
|
|
if let Some(line) = self.link(self.link) {
|
|
|
let url = line.url.to_string();
|
|
|
let (typ, _, _, _) = gopher::parse_url(&url);
|
|
|
match typ {
|
|
|
Type::Search => {
|
|
|
let prompt = format!("{}> ", line.name);
|
|
|
Action::Prompt(
|
|
|
prompt.clone(),
|
|
|
Box::new(move |query| {
|
|
|
Action::Open(
|
|
|
format!("{}{}", prompt, query),
|
|
|
format!("{}?{}", url, query),
|
|
|
)
|
|
|
}),
|
|
|
)
|
|
|
}
|
|
|
Type::Error => Action::Error(line.name.to_string()),
|
|
|
t if !t.is_supported() => Action::Error(format!("{:?} not supported", t)),
|
|
|
_ => Action::Open(line.name.to_string(), url),
|
|
|
}
|
|
|
} else {
|
|
|
Action::None
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/// self.searching == true
|
|
|
fn process_search_mode_char(&mut self, c: char) -> Action {
|
|
|
if c == '\n' {
|
|
|
if self.link_matching(0, &self.input).is_some() {
|
|
|
return self.action_open();
|
|
|
} else {
|
|
|
let input = self.input.clone();
|
|
|
self.searching = false;
|
|
|
self.input.clear();
|
|
|
return Action::Error(format!("No links match: {}", input));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
self.input.push(c);
|
|
|
if let Some(pos) = self.link_matching(0, &self.input) {
|
|
|
self.action_select_link(pos)
|
|
|
} else {
|
|
|
self.redraw_input()
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/// Respond to user input.
|
|
|
fn process_key(&mut self, key: Key) -> Action {
|
|
|
if self.searching {
|
|
|
if let Key::Char(c) = key {
|
|
|
return self.process_search_mode_char(c);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
match key {
|
|
|
Key::Char('\n') => self.action_open(),
|
|
|
Key::Up | Key::Ctrl('p') | Key::Char('p') | Key::Ctrl('k') | Key::Char('k') => {
|
|
|
self.action_up()
|
|
|
}
|
|
|
Key::Down | Key::Ctrl('n') | Key::Char('n') | Key::Ctrl('j') | Key::Char('j') => {
|
|
|
self.action_down()
|
|
|
}
|
|
|
Key::PageUp | Key::Ctrl('-') | Key::Char('-') => self.action_page_up(),
|
|
|
Key::PageDown | Key::Ctrl(' ') | Key::Char(' ') => self.action_page_down(),
|
|
|
Key::Home => {
|
|
|
self.scroll = 0;
|
|
|
self.link = 0;
|
|
|
Action::Redraw
|
|
|
}
|
|
|
Key::End => {
|
|
|
self.scroll = self.final_scroll();
|
|
|
if !self.links.is_empty() {
|
|
|
self.link = self.links.len() - 1;
|
|
|
}
|
|
|
Action::Redraw
|
|
|
}
|
|
|
Key::Char('f') | Key::Ctrl('f') | Key::Char('/') | Key::Char('i') | Key::Ctrl('i') => {
|
|
|
self.searching = true;
|
|
|
self.input.clear();
|
|
|
self.redraw_input()
|
|
|
}
|
|
|
Key::Backspace | Key::Delete => {
|
|
|
if self.searching {
|
|
|
self.input.pop();
|
|
|
self.redraw_input()
|
|
|
} else {
|
|
|
Action::Keypress(key)
|
|
|
}
|
|
|
}
|
|
|
Key::Esc | Key::Ctrl('c') => {
|
|
|
if self.searching {
|
|
|
if self.input.is_empty() {
|
|
|
self.searching = false;
|
|
|
} else {
|
|
|
self.input.clear();
|
|
|
}
|
|
|
self.redraw_input()
|
|
|
} else {
|
|
|
Action::Keypress(key)
|
|
|
}
|
|
|
}
|
|
|
Key::Char(c) => {
|
|
|
if !c.is_digit(10) {
|
|
|
return Action::Keypress(key);
|
|
|
}
|
|
|
|
|
|
self.input.push(c);
|
|
|
// jump to number
|
|
|
let s = self
|
|
|
.input
|
|
|
.chars()
|
|
|
.take(self.input.len())
|
|
|
.collect::<String>();
|
|
|
if let Ok(num) = s.parse::<usize>() {
|
|
|
if num > 0 && num <= self.links.len() {
|
|
|
if self.links.len() < (num * 10) {
|
|
|
return self.action_follow_link(num - 1);
|
|
|
} else {
|
|
|
return self.action_select_link(num - 1);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
Action::None
|
|
|
}
|
|
|
_ => Action::Keypress(key),
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/// Parse gopher response into a Menu object.
|
|
|
pub fn parse(url: String, raw: String) -> Menu {
|
|
|
let mut lines = vec![];
|
|
|
let mut links = vec![];
|
|
|
let mut longest = 0;
|
|
|
for line in raw.split_terminator('\n') {
|
|
|
// Check for Gopher's weird "end of response" message.
|
|
|
if line == ".\r" || line == "." {
|
|
|
continue;
|
|
|
}
|
|
|
if let Some(c) = line.chars().nth(0) {
|
|
|
let typ = match Type::from(c) {
|
|
|
Some(t) => t,
|
|
|
None => continue,
|
|
|
};
|
|
|
|
|
|
// assemble line info
|
|
|
let parts: Vec<&str> = line.split_terminator('\t').collect();
|
|
|
|
|
|
// first set item description
|
|
|
let mut name = String::from("");
|
|
|
if !parts[0].is_empty() {
|
|
|
name.push_str(&parts[0][1..].trim_end_matches('\r'));
|
|
|
}
|
|
|
if name.len() > longest {
|
|
|
longest = name.len();
|
|
|
}
|
|
|
|
|
|
// check for URL:<url> syntax
|
|
|
if parts.len() > 1
|
|
|
&& (parts[1].starts_with("URL:") || parts[1].starts_with("/URL:"))
|
|
|
{
|
|
|
lines.push(Line {
|
|
|
name,
|
|
|
url: parts[1]
|
|
|
.trim_start_matches('/')
|
|
|
.trim_start_matches("URL:")
|
|
|
.to_string(),
|
|
|
typ,
|
|
|
link: links.len(),
|
|
|
});
|
|
|
if typ != Type::Info {
|
|
|
links.push(lines.len() - 1);
|
|
|
}
|
|
|
continue;
|
|
|
}
|
|
|
|
|
|
// assemble regular, gopher-style URL
|
|
|
let mut url = if typ == Type::Telnet {
|
|
|
String::from("telnet://")
|
|
|
} else {
|
|
|
String::from("gopher://")
|
|
|
};
|
|
|
|
|
|
// host
|
|
|
if parts.len() > 2 {
|
|
|
url.push_str(parts[2]);
|
|
|
}
|
|
|
// port
|
|
|
if parts.len() > 3 {
|
|
|
let port = parts[3].trim_end_matches('\r');
|
|
|
if port != "70" {
|
|
|
url.push(':');
|
|
|
url.push_str(parts[3].trim_end_matches('\r'));
|
|
|
}
|
|
|
}
|
|
|
// selector
|
|
|
if parts.len() > 1 && typ != Type::Telnet {
|
|
|
let sel = parts[1].to_string();
|
|
|
if !sel.is_empty() {
|
|
|
// auto-prepend gopher type to selector
|
|
|
if let Some(first_char) = parts[0].chars().nth(0) {
|
|
|
url.push_str("/");
|
|
|
url.push(first_char);
|
|
|
}
|
|
|
url.push_str(&sel);
|
|
|
}
|
|
|
}
|
|
|
lines.push(Line {
|
|
|
name,
|
|
|
url,
|
|
|
typ,
|
|
|
link: links.len(),
|
|
|
});
|
|
|
if typ != Type::Info {
|
|
|
links.push(lines.len() - 1);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
Menu {
|
|
|
url,
|
|
|
lines,
|
|
|
links,
|
|
|
longest,
|
|
|
raw,
|
|
|
input: String::new(),
|
|
|
link: 0,
|
|
|
mode: Default::default(),
|
|
|
scroll: 0,
|
|
|
searching: false,
|
|
|
size: (0, 0),
|
|
|
tls: false,
|
|
|
tor: false,
|
|
|
wide: false,
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
#[cfg(test)]
|
|
|
mod tests {
|
|
|
use super::*;
|
|
|
|
|
|
macro_rules! parse {
|
|
|
($s:literal) => {
|
|
|
Menu::parse("test".to_string(), $s.to_string());
|
|
|
};
|
|
|
}
|
|
|
|
|
|
#[test]
|
|
|
fn test_simple_menu() {
|
|
|
let menu = parse!(
|
|
|
"
|
|
|
i---------------------------------------------------------
|
|
|
1SDF PHLOGOSPHERE (297 phlogs) /phlogs/ gopher.club 70
|
|
|
1SDF GOPHERSPACE (1303 ACTIVE users) /maps/ sdf.org 70
|
|
|
1Geosphere Geosphere earth.rice.edu
|
|
|
8DJ's place a bbs.impakt.net 6502
|
|
|
1git tree /URL:https://github.com/my/code (null) 70
|
|
|
i---------------------------------------------------------
|
|
|
"
|
|
|
);
|
|
|
assert_eq!(menu.lines.len(), 7);
|
|
|
assert_eq!(menu.links.len(), 5);
|
|
|
assert_eq!(menu.lines[1].url, "gopher://gopher.club/1/phlogs/");
|
|
|
assert_eq!(menu.lines[2].url, "gopher://sdf.org/1/maps/");
|
|
|
assert_eq!(menu.lines[3].url, "gopher://earth.rice.edu/1Geosphere");
|
|
|
assert_eq!(menu.lines[4].url, "telnet://bbs.impakt.net:6502");
|
|
|
assert_eq!(menu.lines[5].url, "https://github.com/my/code");
|
|
|
}
|
|
|
|
|
|
#[test]
|
|
|
fn test_no_path() {
|
|
|
let menu = parse!("1Circumlunar Space circumlunar.space 70");
|
|
|
assert_eq!(menu.links.len(), 1);
|
|
|
assert_eq!(menu.lines[0].url, "gopher://circumlunar.space");
|
|
|
}
|
|
|
|
|
|
#[test]
|
|
|
fn test_find_links() {
|
|
|
let mut menu = parse!(
|
|
|
"
|
|
|
i________________________________G_O_P_H_E_R_______________________________ Err bitreich.org 70
|
|
|
iHelp us building a nice sorted directory of the gopherspace: Err bitreich.org 70
|
|
|
1THE GOPHER LAWN – THE gopher directory /lawn bitreich.org 70
|
|
|
i Err bitreich.org 70
|
|
|
1Gopher Tutorials Project /tutorials bitreich.org 70
|
|
|
i Err bitreich.org 70
|
|
|
iRun more gopherholes on tor! Err bitreich.org 70
|
|
|
1The Gopher Onion Initiative /onion bitreich.org 70
|
|
|
i Err bitreich.org 70
|
|
|
1You are missing a gopher client? Use our kiosk mode. /kiosk bitreich.org 70
|
|
|
hssh kiosk@bitreich.org URL:ssh://kiosk@bitreich.org bitreich.org 70
|
|
|
i Err bitreich.org 70
|
|
|
iFurther gopherspace links: Err bitreich.org 70
|
|
|
1The Gopher Project / gopherproject.org 70
|
|
|
7Search the global gopherspace at Veronica II /v2/vs gopher.floodgap.com 70
|
|
|
i Err bitreich.org 70
|
|
|
iBest viewed using: Err bitreich.org 70
|
|
|
1sacc /scm/sacc bitreich.org 70
|
|
|
1clic /scm/clic bitreich.org 70
|
|
|
i Err bitreich.org 70
|
|
|
"
|
|
|
);
|
|
|
menu.term_size(80, 40);
|
|
|
|
|
|
assert_eq!(menu.links.len(), 9);
|
|
|
assert_eq!(menu.link(0).unwrap().url, "gopher://bitreich.org/1/lawn");
|
|
|
assert_eq!(
|
|
|
menu.link(1).unwrap().url,
|
|
|
"gopher://bitreich.org/1/tutorials"
|
|
|
);
|
|
|
assert_eq!(menu.link(2).unwrap().url, "gopher://bitreich.org/1/onion");
|
|
|
assert_eq!(menu.link(3).unwrap().url, "gopher://bitreich.org/1/kiosk");
|
|
|
assert_eq!(menu.link, 0);
|
|
|
|
|
|
let ssh = menu.link(4).unwrap();
|
|
|
assert_eq!(ssh.url, "ssh://kiosk@bitreich.org");
|
|
|
assert_eq!(ssh.typ, Type::HTML);
|
|
|
|
|
|
menu.action_down();
|
|
|
assert_eq!(menu.link, 1);
|
|
|
assert_eq!(menu.link(menu.link).unwrap().link, 1);
|
|
|
|
|
|
menu.action_down();
|
|
|
assert_eq!(menu.link, 2);
|
|
|
assert_eq!(menu.link(menu.link).unwrap().link, 2);
|
|
|
|
|
|
menu.action_page_down();
|
|
|
assert_eq!(menu.link, 8);
|
|
|
assert_eq!(menu.link(menu.link).unwrap().link, 8);
|
|
|
|
|
|
menu.action_up();
|
|
|
assert_eq!(menu.link, 7);
|
|
|
assert_eq!(menu.link(menu.link).unwrap().link, 7);
|
|
|
|
|
|
assert_eq!(menu.scroll, 0);
|
|
|
menu.action_page_up();
|
|
|
assert_eq!(menu.link, 0);
|
|
|
assert_eq!(menu.link(menu.link).unwrap().link, 0);
|
|
|
}
|
|
|
}
|