From 72789dff9c52cf2c5ef7772b301a1d5cfd90e272 Mon Sep 17 00:00:00 2001
From: Akshay <nerdy@peppe.rs>
Date: Mon, 2 Nov 2020 20:00:42 +0530
Subject: fixes for nix

---
 src/readline/mod.rs | 121 ----------------------------------------------------
 1 file changed, 121 deletions(-)
 delete mode 100644 src/readline/mod.rs

(limited to 'src/readline')

diff --git a/src/readline/mod.rs b/src/readline/mod.rs
deleted file mode 100644
index ea195ee..0000000
--- a/src/readline/mod.rs
+++ /dev/null
@@ -1,121 +0,0 @@
-use std::borrow::Cow::{self, Owned};
-use std::path::PathBuf;
-
-use rustyline::completion::{Completer, FilenameCompleter, Pair};
-use rustyline::config::{Builder, ColorMode, CompletionType, EditMode};
-use rustyline::error::ReadlineError;
-use rustyline::highlight::Highlighter;
-use rustyline::hint::{Hinter, HistoryHinter};
-use rustyline::{Context, Editor, Helper};
-
-use directories::ProjectDirs;
-
-use regex::Regex;
-
-use crate::eval_math_expression;
-
-pub struct RLHelper {
-    completer: FilenameCompleter,
-    highlighter: LineHighlighter,
-    hinter: HistoryHinter,
-}
-
-struct LineHighlighter {}
-impl Highlighter for LineHighlighter {
-    fn highlight_hint<'h>(&self, hint: &'h str) -> Cow<'h, str> {
-        Owned(format!("\x1b[90m{}\x1b[0m", hint))
-    }
-    fn highlight<'l>(&self, line: &'l str, _: usize) -> Cow<'l, str> {
-        use std::fs::OpenOptions;
-        use std::io::{BufRead, BufReader};
-
-        let eva_dirs = ProjectDirs::from("com", "NerdyPepper", "eva").unwrap();
-        let eva_data_dir = eva_dirs.data_dir();
-        let mut previous_ans_path = PathBuf::from(eva_data_dir);
-        previous_ans_path.push("previous_ans.txt");
-
-        let file = OpenOptions::new()
-            .create(true)
-            .read(true)
-            .append(true)
-            .open(&previous_ans_path)
-            .unwrap();
-
-        let rdr = BufReader::new(file);
-        let lines = rdr.lines().map(|l| l.unwrap());
-        let prev_ans = match lines.last() {
-            Some(val) => val.parse::<f64>().ok(),
-            None => None,
-        };
-        let op = eval_math_expression(line, prev_ans);
-        match op {
-            Ok(_) => {
-                let constants = ["e", "pi"];
-                let functions = [
-                    "sin", "cos", "tan", "csc", "sec", "cot", "sinh", "cosh", "tanh", "ln", "log",
-                    "sqrt", "ceil", "floor", "rad", "deg", "abs", "asin", "acos", "atan", "acsc",
-                    "asec", "acot",
-                ];
-                let ops = Regex::new(r"(?P<o>[\+-/\*%\^!])").unwrap();
-                let mut coloured: String = ops.replace_all(line, "\x1b[35m$o\x1b[0m").into();
-
-                for c in &constants {
-                    coloured = coloured.replace(c, &format!("\x1b[33m{}\x1b[0m", c));
-                }
-                for f in &functions {
-                    coloured = coloured.replace(f, &format!("\x1b[34m{}\x1b[0m", f));
-                }
-                Owned(coloured)
-            }
-            Err(_) => Owned(format!("\x1b[31m{}\x1b[0m", line)),
-        }
-    }
-}
-
-impl Highlighter for RLHelper {
-    fn highlight_hint<'h>(&self, hint: &'h str) -> Cow<'h, str> {
-        self.highlighter.highlight_hint(hint)
-    }
-    fn highlight<'l>(&self, line: &'l str, pos: usize) -> Cow<'l, str> {
-        self.highlighter.highlight(line, pos)
-    }
-}
-
-impl Completer for RLHelper {
-    type Candidate = Pair;
-    fn complete(
-        &self,
-        line: &str,
-        pos: usize,
-        ctx: &Context<'_>,
-    ) -> Result<(usize, Vec<Pair>), ReadlineError> {
-        self.completer.complete(line, pos, ctx)
-    }
-}
-
-impl Hinter for RLHelper {
-    fn hint(&self, line: &str, a: usize, b: &Context) -> Option<String> {
-        self.hinter.hint(line, a, b)
-    }
-}
-
-impl Helper for RLHelper {}
-
-pub fn create_readline() -> Editor<RLHelper> {
-    let config_builder = Builder::new();
-    let config = config_builder
-        .color_mode(ColorMode::Enabled)
-        .edit_mode(EditMode::Emacs)
-        .history_ignore_space(true)
-        .completion_type(CompletionType::Circular)
-        .max_history_size(1000)
-        .build();
-    let mut rl = Editor::with_config(config);
-    let h = RLHelper {
-        completer: FilenameCompleter::new(),
-        highlighter: LineHighlighter {},
-        hinter: HistoryHinter {},
-    };
-    rl.set_helper(Some(h));
-    rl
-}
-- 
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