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//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015, 2016 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 handlebars::{Handlebars, HelperDef, JsonRender, RenderError, RenderContext, Helper};
use serde_json::value::Value;
use ansi_term::Colour;
use ansi_term::Style;
#[derive(Clone, Copy)]
pub struct ColorizeBlackHelper;
impl HelperDef for ColorizeBlackHelper {
fn call(&self, h: &Helper, hb: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
colorize(Colour::Black, h, hb, rc)
}
}
#[derive(Clone, Copy)]
pub struct ColorizeBlueHelper;
impl HelperDef for ColorizeBlueHelper {
fn call(&self, h: &Helper, hb: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
colorize(Colour::Blue, h, hb, rc)
}
}
#[derive(Clone, Copy)]
pub struct ColorizeCyanHelper;
impl HelperDef for ColorizeCyanHelper {
fn call(&self, h: &Helper, hb: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
colorize(Colour::Cyan, h, hb, rc)
}
}
#[derive(Clone, Copy)]
pub struct ColorizeGreenHelper;
impl HelperDef for ColorizeGreenHelper {
fn call(&self, h: &Helper, hb: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
colorize(Colour::Green, h, hb, rc)
}
}
#[derive(Clone, Copy)]
pub struct ColorizePurpleHelper;
impl HelperDef for ColorizePurpleHelper {
fn call(&self, h: &Helper, hb: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
colorize(Colour::Purple, h, hb, rc)
}
}
#[derive(Clone, Copy)]
pub struct ColorizeRedHelper;
impl HelperDef for ColorizeRedHelper {
fn call(&self, h: &Helper, hb: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
colorize(Colour::Red, h, hb, rc)
}
}
#[derive(Clone, Copy)]
pub struct ColorizeWhiteHelper;
impl HelperDef for ColorizeWhiteHelper {
fn call(&self, h: &Helper, hb: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
colorize(Colour::White, h, hb, rc)
}
}
#[derive(Clone, Copy)]
pub struct ColorizeYellowHelper;
impl HelperDef for ColorizeYellowHelper {
fn call(&self, h: &Helper, hb: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
colorize(Colour::Yellow, h, hb, rc)
}
}
fn colorize(color: Colour, h: &Helper, _: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
let p = try!(h.param(0).ok_or(RenderError::new("Too few arguments")));
try!(write!(rc.writer(), "{}", color.paint(p.value().render())));
Ok(())
}
#[derive(Clone, Copy)]
pub struct UnderlineHelper;
impl HelperDef for UnderlineHelper {
fn call(&self, h: &Helper, _: &Handlebars, rc: &mut RenderContext) -> Result<(),
RenderError> {
let p = try!(h.param(0).ok_or(RenderError::new("Too few arguments")));
let s = Style::new().underline();
try!(write!(rc.writer(), "{}", s.paint(p.value().render())));
Ok(())
}
}
#[derive(Clone, Copy)]
pub struct BoldHelper;
impl HelperDef for BoldHelper {
fn call(&self, h: &Helper, _: &Handlebars, rc: &mut RenderContext) -> Result<(),
RenderError> {
let p = try!(h.param(0).ok_or(RenderError::new("Too few arguments")));
let s = Style::new().bold();
try!(write!(rc.writer(), "{}", s.paint(p.value().render())));
Ok(())
}
}
#[derive(Clone, Copy)]
pub struct BlinkHelper;
impl HelperDef for BlinkHelper {
fn call(&self, h: &Helper, _: &Handlebars, rc: &mut RenderContext) -> Result<(),
RenderError> {
let p = try!(h.param(0).ok_or(RenderError::new("Too few arguments")));
let s = Style::new().blink();
try!(write!(rc.writer(), "{}", s.paint(p.value().render())));
Ok(())
}
}
#[derive(Clone, Copy)]
pub struct StrikethroughHelper;
impl HelperDef for StrikethroughHelper {
fn call(&self, h: &Helper, _: &Handlebars, rc: &mut RenderContext) -> Result<(),
RenderError> {
let p = try!(h.param(0).ok_or(RenderError::new("Too few arguments")));
let s = Style::new().strikethrough();
try!(write!(rc.writer(), "{}", s.paint(p.value().render())));
Ok(())
}
}
fn param_to_number(idx: usize, h: &Helper) -> Result<u64, RenderError> {
match try!(h.param(idx).ok_or(RenderError::new("Too few arguments"))).value() {
&Value::Number(ref num) => num.as_u64().ok_or_else(|| RenderError::new("Number cannot be parsed")),
_ => Err(RenderError::new("Type error: First argument should be a number")),
}
}
#[derive(Clone, Copy)]
pub struct LeftPadHelper;
impl HelperDef for LeftPadHelper {
fn call(&self, h: &Helper, _: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
let count = param_to_number(0, h)? as usize;
let text = try!(h.param(1).ok_or(RenderError::new("Too few arguments")));
let text = format!("{:>width$}", text.value().render(), width = count);
try!(write!(rc.writer(), "{}", text));
Ok(())
}
}
#[derive(Clone, Copy)]
pub struct RightPadHelper;
impl HelperDef for RightPadHelper {
fn call(&self, h: &Helper, _: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
let count = param_to_number(0, h)? as usize;
let text = try!(h.param(1).ok_or(RenderError::new("Too few arguments")));
let text = format!("{:width$}", text.value().render(), width = count);
try!(write!(rc.writer(), "{}", text));
Ok(())
}
}
#[derive(Clone, Copy)]
pub struct AbbrevHelper;
impl HelperDef for AbbrevHelper {
fn call(&self, h: &Helper, _: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
let count = param_to_number(0, h)? as usize;
let text = try!(h.param(1).ok_or(RenderError::new("Too few arguments"))).value().render();
try!(write!(rc.writer(), "{}", text.chars().take(count).collect::<String>()));
Ok(())
}
}
pub fn register_all_color_helpers(handlebars: &mut Handlebars) {
handlebars.register_helper("black" , Box::new(ColorizeBlackHelper));
handlebars.register_helper("blue" , Box::new(ColorizeBlueHelper));
handlebars.register_helper("cyan" , Box::new(ColorizeCyanHelper));
handlebars.register_helper("green" , Box::new(ColorizeGreenHelper));
handlebars.register_helper("purple" , Box::new(ColorizePurpleHelper));
handlebars.register_helper("red" , Box::new(ColorizeRedHelper));
handlebars.register_helper("white" , Box::new(ColorizeWhiteHelper));
handlebars.register_helper("yellow" , Box::new(ColorizeYellowHelper));
}
pub fn register_all_format_helpers(handlebars: &a
|