diff options
author | Mx Kookie <kookie@spacekookie.de> | 2020-12-12 11:24:43 +0000 |
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committer | Mx Kookie <kookie@spacekookie.de> | 2020-12-21 05:19:49 +0100 |
commit | 4c97f3208a0ba185264a169e01d0b0d922266ea6 (patch) | |
tree | fe35d9da3e60f1169eb97242b1948ccb5f9341cd /apps/cassiopeia/src/format | |
parent | d346c9f2f30041623e51b120e767b1ce02083e97 (diff) |
cassiopeia: adding API outline
Diffstat (limited to 'apps/cassiopeia/src/format')
-rw-r--r-- | apps/cassiopeia/src/format/mod.rs | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/apps/cassiopeia/src/format/mod.rs b/apps/cassiopeia/src/format/mod.rs index b5342d62da13..e55658d515ff 100644 --- a/apps/cassiopeia/src/format/mod.rs +++ b/apps/cassiopeia/src/format/mod.rs @@ -9,17 +9,21 @@ pub(crate) use parser::LineCfg; use crate::TimeFile; use std::{fs::File, io::Read}; -pub fn load_file(path: &str) -> TimeFile { - let mut f = File::open(path).unwrap(); +/// Load a file from disk and parse it into a +/// [`TimeFile`](crate::TimeFile) +pub fn load_file(path: &str) -> Option<TimeFile> { + let mut f = File::open(path).ok()?; let mut content = String::new(); - f.read_to_string(&mut content).unwrap(); + f.read_to_string(&mut content).ok()?; let mut lines: Vec<String> = content.split("\n").map(|l| l.to_owned()).collect(); - lines - .iter_mut() - .map(|line| lexer::lex(line)) - .map(|lex| parser::parse(lex)) - .filter(|line| line.valid()) - .fold(TimeFile::default(), |file, line| file.append(line)) + Some( + lines + .iter_mut() + .map(|line| lexer::lex(line)) + .map(|lex| parser::parse(lex)) + .filter(|line| line.valid()) + .fold(TimeFile::default(), |file, line| file.append(line)), + ) } |