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@ -1,12 +1,13 @@
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use nom::branch::alt;
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use nom::bytes::complete::{escaped, is_not, take, take_till, take_until, take_while};
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use nom::bytes::complete::{tag, take_while1, take_while_m_n};
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use nom::character::complete::{char, one_of, newline, not_line_ending, anychar};
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use nom::character::complete::alphanumeric1 as alphanumeric;
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use nom::combinator::{cut, map, map_res, opt};
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use nom::error::ParseError;
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use nom::IResult;
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use nom::IResult;
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use nom::number::complete::be_u16;
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use nom::number::complete::be_u16;
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use nom::bytes::complete::{take, is_not, take_while, escaped};
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use nom::sequence::{delimited, preceded, terminated, tuple};
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use nom::character::complete::{char, one_of};
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use nom::bytes::complete::{take_while1, tag, take_while_m_n};
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use nom::combinator::{map_res, opt, cut};
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use nom::sequence::{preceded, tuple, delimited, terminated};
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use nom::error::ParseError;
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use nom::character::complete::{alphanumeric1 as alphanumeric};
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pub fn length_value(input: &[u8]) -> IResult<&[u8], &[u8]> {
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pub fn length_value(input: &[u8]) -> IResult<&[u8], &[u8]> {
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let (input, length) = be_u16(input)?;
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let (input, length) = be_u16(input)?;
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@ -20,8 +21,10 @@ pub struct Color {
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pub blue: u8,
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pub blue: u8,
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}
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}
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pub struct ScriptMeta {
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pub enum ScriptMeta {
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Comment(String),
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Element(String),
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Meta(String),
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}
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}
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pub fn from_hex(input: &str) -> Result<u8, std::num::ParseIntError> {
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pub fn from_hex(input: &str) -> Result<u8, std::num::ParseIntError> {
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@ -35,7 +38,7 @@ pub fn is_hex_digit(c: char) -> bool {
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pub fn hex_primary(input: &str) -> IResult<&str, u8> {
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pub fn hex_primary(input: &str) -> IResult<&str, u8> {
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map_res(
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map_res(
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take_while_m_n(2, 2, is_hex_digit),
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take_while_m_n(2, 2, is_hex_digit),
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from_hex
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from_hex,
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)(input)
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)(input)
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}
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}
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@ -46,19 +49,36 @@ pub fn hex_color(input: &str) -> IResult<&str, Color> {
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Ok((input, Color { red, green, blue }))
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Ok((input, Color { red, green, blue }))
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}
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}
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pub fn elem_tag(input: &str) -> IResult<&str, u8> {
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pub fn elem_tag(input: &str) -> IResult<&str, &str> {
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let (input, _) = tag("elem")(input)?;
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let (input, _) = tag("elem")(input)?;
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let input = sp(input)?;
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let input = sp(input)?;
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Ok((input.0, 0))
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Ok((input.0, input.0))
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}
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}
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pub fn comment<'a, E: ParseError<&'a str>>(input: &'a str) -> IResult<&'a str, u8, E> {
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fn parse_str<'a, E: ParseError<&'a str>>(i: &'a str) -> IResult<&'a str, &'a str, E> {
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let chars = "\n";
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escaped(anychar, '\\', one_of(""))(i)
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}
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preceded(char('#'), cut(terminated(escaped(
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pub fn comment<'a, E: ParseError<&'a str>>(input: &'a str) -> IResult<&'a str, &'a str, E> {
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alphanumeric, '\\', one_of("\"n\\")), char('\"')))
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// if let Ok(t) = preceded(sp, char('#'))(input) {
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// let v = take_until("\n")(t.0).unwrap();
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// println!("{:?}", t);
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// }
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let v = preceded(char('#'),
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cut(
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terminated(
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parse_str,
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newline,
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)
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),
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)(input)?;
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)(input)?;
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// let (input, _) = tag("#")(input)?;
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Ok(("", 0))
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println!("{:?}", v);
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Ok((v.0, v.0))
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}
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}
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fn curlies(input: &str) -> IResult<&str, &str> {
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fn curlies(input: &str) -> IResult<&str, &str> {
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@ -78,22 +98,31 @@ fn sp<'a>(i: &'a str) -> IResult<&'a str, &'a str> {
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pub fn parse_script<'a, E: ParseError<&'a str>>(input: &'a str) -> IResult<&'a str, ScriptMeta, E> {
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pub fn parse_script<'a, E: ParseError<&'a str>>(input: &'a str) -> IResult<&'a str, ScriptMeta, E> {
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let x = delimited(
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if let Ok(v) = elem_tag(input) {
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sp,
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println!("Found elem tag");
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alt((map(comment, |s| ScriptMeta::Comment(String::from(s))),
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if let Ok(v) = sp(v.0) {
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map(elem_tag, |s| ScriptMeta::Element(String::from(s)))
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preceded(sp, char(':'));
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)),
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println!("ate some spaces");
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opt(sp),
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}
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)(input);
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else {
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println!("didn't eat spaces?");
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// if let Ok(v) = elem_tag(input) {
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}
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// println!("Found elem tag");
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}
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// if let Ok(v) = sp(v.0) {
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if let Ok(v) = comment(input) {
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//
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println!("Found comment tag")
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// println!("ate some spaces");
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}
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// }
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// else {
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return Ok(("", ScriptMeta{}))
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// println!("didn't eat spaces?");
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// }
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// }
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// if let Ok(v) = comment(input) {
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// println!("Found comment tag")
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// }
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let x = x.unwrap().0;
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return Ok((x, ScriptMeta::Comment(String::default())));
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}
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}
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