mirror of
https://github.com/zaphar/ucg.git
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61 lines
1.7 KiB
Rust
61 lines
1.7 KiB
Rust
// Copyright 2020 Jeremy Wall
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use std;
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use std::io::Write;
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use std::rc::Rc;
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use crate::build::Val;
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use crate::convert::traits::{ConvertResult, Converter};
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use crate::convert::yaml::YamlConverter;
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pub struct MultiYamlConverter(YamlConverter);
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impl MultiYamlConverter {
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pub fn new() -> Self {
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MultiYamlConverter(YamlConverter::new())
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}
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pub fn convert_list(&self, vals: &Vec<Rc<Val>>, mut w: &mut dyn Write) -> ConvertResult {
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for val in vals {
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self.0.write(val.as_ref(), &mut w)?;
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}
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Ok(())
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}
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}
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impl Converter for MultiYamlConverter {
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fn convert(&self, v: Rc<Val>, mut w: &mut dyn Write) -> ConvertResult {
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if let Val::List(ref vals) = v.as_ref() {
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self.convert_list(vals, &mut w)
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} else {
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let list = vec![v];
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self.convert_list(&list, &mut w)
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}
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}
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fn file_ext(&self) -> String {
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"yaml".to_owned()
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}
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fn description(&self) -> String {
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"Convert ucg vals into valid multi document yaml.".to_owned()
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}
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#[allow(unused_must_use)]
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fn help(&self) -> String {
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include_str!("yaml_help.txt").to_owned()
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}
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}
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