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#[macro_use]
extern crate log;
extern crate toml;
extern crate colored;
extern crate lalrpop_util;
pub mod modelica_parser;
pub mod modelica_ast;
pub mod transpile_scheme;
pub mod transpile_js;
use std::path::Path;
use std::fs;
use std::io::Read;
use std::fs::File;
use lalrpop_util::ParseError;
use colored::*;
#[derive(Debug, PartialEq)]
pub struct ModelMetadata {
pub name_en: String,
pub description_en: Option<String>,
pub vars: Vec<ModelVar>,
}
#[derive(Debug, PartialEq)]
pub enum ModelVarType {
Independent,
Dependent,
Constant,
Time,
State,
Parameter,
}
#[derive(Debug, PartialEq)]
pub struct ModelVar {
pub slug: String,
pub name_en: Option<String>,
pub vtype: ModelVarType,
pub latex: Option<String>,
pub units_si: Option<String>,
}
#[derive(Debug, PartialEq)]
pub struct ModelEntry {
pub ast: modelica_ast::ModelicaModel,
pub metadata: ModelMetadata,
pub markdown: String,
}
pub fn parse_metadata(raw: String) -> Result<ModelMetadata,String> {
let root = toml::Parser::new(&raw).parse().unwrap();
let model = root.get("model")
.expect("missing 'model' section")
.as_table().unwrap();
let variables = root.get("variables")
.expect("missing 'variables' section")
.as_table().unwrap();
let mut vars = vec![];
for (slug, info) in variables {
let info = info.as_table().unwrap();
let vtype = match info.get("type").unwrap().as_str().unwrap() {
"independent" => ModelVarType::Independent,
"dependent" => ModelVarType::Dependent,
"constant" => ModelVarType::Constant,
"time" => ModelVarType::Time,
"state" => ModelVarType::State,
"parameter" => ModelVarType::Parameter,
other => return Err(format!("Unknown variable type: {}", other)),
};
vars.push(ModelVar {
slug: slug.to_string(),
name_en: info.get("name-en").map(|x| x.as_str().unwrap().to_string()),
vtype: vtype,
latex: info.get("latex").map(|x| x.as_str().unwrap().to_string()),
units_si: info.get("units-si").map(|x| x.as_str().unwrap().to_string()),
});
}
Ok(ModelMetadata {
name_en: model.get("name-en").unwrap().as_str().unwrap().to_string(),
description_en: model.get("description-en").map(|x| x.as_str().unwrap().to_string()),
vars: vars,
})
}
pub fn load_model_entry(p: &Path) -> Result<ModelEntry,String> {
debug!("Attempting to load model from: {:?}", p);
let ast = {
let mut s = String::new();
try!(File::open(p.join("model.modelica")).and_then(|mut f| f.read_to_string(&mut s)).map_err(|e| e.to_string()));
try!(modelica_parser::parse_model(&s).map_err(|e| format!("{:?}", e)))
};
let metadata = {
let mut s = String::new();
try!(File::open(p.join("metadata.toml")).and_then(|mut f| f.read_to_string(&mut s)).map_err(|e| e.to_string()));
parse_metadata(s).unwrap()
};
let markdown = {
let mut s = String::new();
try!(File::open(p.join("page.md")).and_then(|mut f| f.read_to_string(&mut s)).map_err(|e| e.to_string()));
s
};
Ok(ModelEntry {
ast: ast,
metadata: metadata,
markdown: markdown,
})
}
pub fn search_models(p: &Path) -> Vec<String> {
if fs::metadata(p).unwrap().is_dir() {
fs::read_dir(p).unwrap()
.map(|x| x.unwrap())
.filter(|x| x.metadata().unwrap().is_dir())
.filter(|x| x.path().join("model.modelica").exists())
.map(|x| x.path().to_string_lossy().to_string())
.collect()
} else {
vec![]
}
}
fn pp_segment(raw: &str, start: usize, end: usize) -> String {
let mut line_start = 0;
let mut num = 0;
let mut ret = String::new();
for line in raw.lines() {
num += 1;
let line_end = line_start + line.len();
if (line_start <= start) && (start < line_end) {
ret += &format!(" {}\n{:>3} {} {}{}{}\n {} {}{}\n",
"|".blue().bold(),
num.to_string().blue().bold(),
"|".blue().bold(),
raw[line_start..start].normal(),
raw[start..end].red().bold(),
if end < line_end {
raw[end..line_end].normal()
} else {
"".normal()
},
"|".blue().bold(),
std::iter::repeat(" ").take(start - line_start).collect::<String>(),
std::iter::repeat("^").take(end - start).collect::<String>().red().bold());
}
line_start += line.len() + 1;
if line_start > end { break };
}
ret
}
pub fn pp_parseerror(raw: &str, pe: ParseError<usize, (usize, &str), ()>) -> String {
match pe {
ParseError::InvalidToken{location} => {
format!("{} invalid token starting at:\n{}",
"parse error:".red().bold(),
pp_segment(raw, location, location+1)) },
ParseError::UnrecognizedToken{token: Some((start, (_, tok), end)), expected} => {
format!("{} unrecognized token '{}' (expected one of {:?}):\n{}",
"parse error:".red().bold(),
tok,
expected,
pp_segment(raw, start, end)) },
ParseError::UnrecognizedToken{token: None, expected} => {
format!("{} premature end-of-file (expected one of {:?})",
"parse error:".red().bold(),
expected) },
ParseError::ExtraToken{token: (start, (_, tok), end)} => {
format!("{} unexpected extra token '{}':\n{}",
"parse error:".red().bold(),
tok,
pp_segment(raw, start, end)) },
_ => {
format!("{} {:?}", "parse error:".red().bold(), pe) },
}
}
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