122 lines
4.3 KiB
Rust
122 lines
4.3 KiB
Rust
//
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// imag - the personal information management suite for the commandline
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// Copyright (C) 2015-2018 Matthias Beyer <mail@beyermatthias.de> and contributors
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; version
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// 2.1 of the License.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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use std::borrow::Cow;
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use std::collections::btree_map::{BTreeMap, Entry};
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use std::str::Split;
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use clap::ArgMatches;
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use toml::Value;
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use libimagutil::key_value_split::IntoKeyValue;
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pub fn build_toml_header(matches: &ArgMatches, mut header: Value) -> Value {
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debug!("Building header from cli spec");
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if let Some(headerspecs) = matches.values_of("header") {
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let kvs = headerspecs.into_iter()
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.filter_map(|hs| {
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debug!("- Processing: '{}'", hs);
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let kv = String::from(hs).into_kv();
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debug!("- got: '{:?}'", kv);
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kv
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});
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for tpl in kvs {
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let (key, value) = tpl.into();
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debug!("Splitting: {:?}", key);
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let mut split = key.split('.');
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match (split.next(), &mut header) {
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(Some(cur), &mut Value::Table(ref mut hdr)) =>
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insert_key_into(String::from(cur), &mut split, Cow::Owned(value), hdr),
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_ => { }
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}
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}
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}
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debug!("Header = {:?}", header);
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header
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}
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fn insert_key_into<'a>(current: String,
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rest_path: &mut Split<char>,
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value: Cow<'a, str>,
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map: &mut BTreeMap<String, Value>) {
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let next = rest_path.next();
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if next.is_none() {
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debug!("Inserting into {:?} = {:?}", current, value);
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map.insert(current, parse_value(value));
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} else {
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debug!("Inserting into {:?} ... = {:?}", current, value);
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match map.entry(current) {
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Entry::Occupied(ref mut e) => {
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match *e.get_mut() {
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Value::Table(ref mut t) => {
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insert_key_into(String::from(next.unwrap()), rest_path, value, t);
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},
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_ => unreachable!(),
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}
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},
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Entry::Vacant(v) => { v.insert(Value::Table( {
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let mut submap = BTreeMap::new();
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insert_key_into(String::from(next.unwrap()), rest_path, value, &mut submap);
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debug!("Inserting submap = {:?}", submap);
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submap }));
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}
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}
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}
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}
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fn parse_value(value: Cow<str>) -> Value {
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use std::str::FromStr;
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fn is_ary(v: &str) -> bool {
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v.starts_with('[') && v.ends_with(']') && v.len() >= 3
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}
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if value == "true" {
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debug!("Building Boolean out of: {:?}...", value);
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Value::Boolean(true)
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} else if value == "false" {
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debug!("Building Boolean out of: {:?}...", value);
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Value::Boolean(false)
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} else if is_ary(&value) {
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debug!("Building Array out of: {:?}...", value);
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let sub = &value[1..(value.len()-1)];
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Value::Array(sub.split(',').map(|x| parse_value(Cow::from(x))).collect())
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} else {
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FromStr::from_str(&value[..])
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.map(|i: i64| {
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debug!("Building Integer out of: {:?}...", value);
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Value::Integer(i)
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})
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.unwrap_or_else(|_| {
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FromStr::from_str(&value[..])
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.map(|f: f64| {
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debug!("Building Float out of: {:?}...", value);
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Value::Float(f)
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})
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.unwrap_or_else(|_| {
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debug!("Building String out of: {:?}...", value);
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Value::String(value.into_owned())
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})
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})
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}
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}
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