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//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015-2019 Matthias Beyer <mail@beyermatthias.de> and contributors
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; version
// 2.1 of the License.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
use std::borrow::Cow;
use std::str::Split;
use clap::ArgMatches;
use toml::Value;
use toml::map::{Map, Entry};
use libimagutil::key_value_split::IntoKeyValue;
pub fn build_toml_header(matches: &ArgMatches, mut header: Value) -> Value {
debug!("Building header from cli spec");
if let Some(headerspecs) = matches.values_of("header") {
let kvs = headerspecs
.filter_map(|hs| {
debug!("- Processing: '{}'", hs);
let kv = String::from(hs).into_kv();
debug!("- got: '{:?}'", kv);
kv
});
for tpl in kvs {
let (key, value) = tpl.into();
debug!("Splitting: {:?}", key);
let mut split = key.split('.');
match (split.next(), &mut header) {
(Some(cur), &mut Value::Table(ref mut hdr)) =>
insert_key_into(String::from(cur), &mut split, Cow::Owned(value), hdr),
_ => { }
}
}
}
debug!("Header = {:?}", header);
header
}
fn insert_key_into<'a>(current: String,
rest_path: &mut Split<char>,
value: Cow<'a, str>,
map: &mut Map<String, Value>) {
let next = rest_path.next();
if next.is_none() {
debug!("Inserting into {:?} = {:?}", current, value);
map.insert(current, parse_value(value));
} else {
debug!("Inserting into {:?} ... = {:?}", current, value);
match map.entry(current) {
Entry::Occupied(ref mut e) => {
match *e.get_mut() {
Value::Table(ref mut t) => {
insert_key_into(String::from(next.unwrap()), rest_path, value, t);
},
_ => unreachable!(),
}
},
Entry::Vacant(v) => { v.insert(Value::Table( {
let mut submap = Map::new();
insert_key_into(String::from(next.unwrap()), rest_path, value, &mut submap);
debug!("Inserting submap = {:?}", submap);
submap }));
}
}
}
}
fn parse_value(value: Cow<str>) -> Value {
use std::str::FromStr;
fn is_ary(v: &str) -> bool {
v.starts_with('[') && v.ends_with(']') && v.len() >= 3
}
if value == "true" {
debug!("Building Boolean out of: {:?}...", value);
Value::Boolean(true)
} else if value == "false" {
debug!("Building Boolean out of: {:?}...", value);
Value::Boolean(false)
} else if is_ary(&value) {
debug!("Building Array out of: {:?}...", value);
let sub = &value[1..(value.len()-1)];
Value::Array(sub.split(',').map(|x| parse_value(Cow::from(x))).collect())
} else {
FromStr::from_str(&value[..])
.map(|i: i64| {
debug!("Building Integer out of: {:?}...", value);
Value::Integer(i)
})
.unwrap_or_else(|_| {
FromStr::from_str(&value[..])
.map(|f: f64| {
debug!("Building Float out of: {:?}...", value);
Value::Float(f)
})
.unwrap_or_else(|_| {
debug!("Building String out of: {:?}...", value);
Value::String(value.into_owned())
})
})
}
}
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