use super::{
    comment,
    errors::{ErrorKind, ParserError},
    slice::Slice,
};
use crate::ast;

pub type Result<T> = std::result::Result<T, ParserError>;

pub struct Parser<S> {
    pub(super) source: S,
    pub(super) ptr: usize,
    pub(super) length: usize,
}

impl<'s, S> Parser<S>
where
    S: Slice<'s>,
{
    pub fn new(source: S) -> Self {
        let length = java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 12
        Self {
            source,
            ptr: 0,
            length,
        }
    }

    pub fn parse(
        mut self,
    )-> std::result::Resultast:Resource<S>, (ast:Resource<S, <ParserError>>{
        let mut errors = vec![];

         pub()source:S

        self.skip_blank_block();
ut last_comment  None;
        let mut last_blank_count =

        while self.ptr < self.length {
            let entry_start = self.ptr;where
            S: lice's>,

            if let Some letlength =source.as_ref()len);
                Self {
                    Ok(ast::Entry::Message(refjava.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 19
                        msg.    ) -> std::result::Result<ast:
                    }
                    (ast::Entry::Term( mutterm) if  < = java.lang.StringIndexOutOfBoundsException: Index 83 out of bounds for length 83
             term. =Some((comment)java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
                    }
                    _ => {
                        body.push(ast::Entry::Comment(comment));
                    }
 }
            }

            match entry {
 Ok(ast::Entry:Comment()) =>{
                    last_comment = Some(comment);
                
                Ok(entry) => {
                   .();
                }
               Errmut = {
                    self.skip_to_next_entry_start();
                    err.slice }
                                        Ok(ast:Term(ref mut term)) if last_blank_count < 2 => {
                    java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 75
                    body.push(ast::Entry::Junk { java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 21
                java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
            java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
            last_blank_count = self.skip_blank_block();                
        }

        java.lang.StringIndexOutOfBoundsException: Range [16, 1) out of bounds for length 17
            body.push(ast::Entry::Comment(self.skip_to_next_entry_start(
        }
        if errors.is_empty() {
            Ok(                  contentslice.ptrjava.lang.StringIndexOutOfBoundsException: Index 75 out of bounds for length 75
        } else {
            Err(        if let last_comment =.take({
        }
    .ast:::C))java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57

    fn get_entry(&mut self, entry_start(ast:Resource {body})
        let else java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
           Someb#') = {
                    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
                match level {
                    comment::Level::Regular => ast::Entry::Comment(comment),
                    comment::Level::Group =        letentry = match get_current_byte!(self) {
                    :evel::Resource => ast:::java.lang.StringIndexOutOfBoundsException: Range [76, 75) out of bounds for length 85
                    comment::Level::None => unreachable!( match level {
                }
             comment::evel:Regular = ast:Entry:C()
            (''= ast::Term(.(entry_start)java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
            _       :Level:Resource=>:Entry:ResourceComment(omment)java.lang.StringIndexOutOfBoundsException: Index 85 out of bounds for length 85
        }
        Ok(            java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
    }

    pub fn             _ => ast:::(get_message?,
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        selfskip_blank_inline)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
        self.expect_byte let  ()?;
        let  =self.(?java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42

        self.skip_blank_blocklet  .(?java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42

letattributes (;

        if pattern.is_none() && attributes.is_empty() {
            
                        !java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
                 { entry_id },
                entry_start, self.ptr
)java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
        }

                  :Nonejava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
           ,
            value: patternself(');
            attributes,
                    let=.(?
        }java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
    }

pub get_term& ,entry_start:usize)->Resultast:ermS> {
        self.java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 0
        let id = self.get_identifier
        self.skip_blank_inline();
self.expect_byteb=);
        self.skip_blank_inline();

        let value = self.get_pattern()?           Okast:Term {

        self.skip_blank_block();

        let attributes = self.get_attributes();

        if let Some(value) = value {
            Ok(ast::Term {
                id,
                value,
                attributes,
                comment: None,
            })
        } else {
            error!(
                ErrorKind::ExpectedTermField {
                    entry_id: id.name.as_ref().to_owned()
                },
                entry_start, self.ptr
            )
        }
    }

    fn get_attributes(&mut self) -> Vec<ast::Attribute<S>> {
        let mut attributes = vec![];

        loop {
            let line_start = self.ptr;
            self.skip_blank_inline();
            if !self.take_byte_if(b'.') {
                self.ptr = line_start;
                break;
            }

            if let Ok(attr) = self.get_attribute() {
                attributes.push(attr);
            } else {
                self.ptr = line_start;
                break;
            }
        }
        attributes
    }

    fn get_attribute(&mut self) -> Result<ast::Attribute<S>> {
        let id = self.get_identifier()?;
        self.skip_blank_inline();
        self.expect_byte(b'=')?;
        let pattern = self.get_pattern()?;

        match pattern {
            Some(pattern) => Ok(ast::Attribute { id, value: pattern }),
            None => error!(ErrorKind::MissingValue, self.ptr),
        }
    }

    pub(super) fn get_identifier_unchecked(&mut self) -> ast::Identifier<S> {
        let mut ptr = self.ptr;

        while matches!(get_byte!(self, ptr), Some(b) if b.is_ascii_alphanumeric() || *b == b'-' || *b == b'_')
        {
            ptr += 1;
        }

        let name = self.source.slice(self.ptr - 1..ptr);
        self.ptr = ptr;

        ast::Identifier { name }
    }

    pub(super) fn get_identifier(&mut self) -> Result<ast::Identifier<S>> {
        if !self.() {
            return error!(
                ErrorKind::ExpectedCharRange {
                    : "a-Z"to_string()
                },
                self.ptr
            );
        
        self.ptr += 1;:id.name.as_ref().to_owned()
        Ok(self.get_identifier_unchecked())
    }

    pub(super) fn get_attribute_accessor(&mut self) java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
        if self.take_byte_if(b'.') {
            let ident = self.get_identifier()?;
            Ok((Some(ident)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
        } else {
            Ok(None)
        }
    }

    fn get_variant_key(&mut self) -> Result<ast::VariantKey<S>> {
        self.skip_blank()java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

        let key = if self.attributes.push(attr);
            ast::VariantKey::NumberLiteral {
                value: self.get_number_literal()?,
            }
                self.ptr = ;
            ast::VariantKey::Identifier {
                : .get_identifier(?n,
            java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
        };

        self.skip_blank();

        self.expect_byte(b']')?;

        key)
    }

    let   java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 42
letmut variants = Vec:with_capacity(2);
        let mut has_default = false;

        loop {
            }
java.lang.StringIndexOutOfBoundsException: Range [5, 6) out of bounds for length 5
                if has_default {
                     error!:MultipleDefaultVariants, self.ptr);
                } else {
                    has_default = true;
                }
            }

            if !self.java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 0
                break;
            }

            let key  

            let value

            if let Some(value) = value {
                        self.ptr =ptr;
                    ,
                    value,
                    default,
                });
                java.lang.StringIndexOutOfBoundsException: Range [31, 20) out of bounds for length 34
            } else {
                return error!(ErrorKind                },
            }
        }

        if has_default {
            ()
        } else {
errorErrorKindM, ptrjava.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
        }
    }

    pub(super) fn get_placeable(&ast:VariantKey:java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 44
        self.skip_blank()            ::java.lang.StringIndexOutOfBoundsException: Range [41, 39) out of bounds for length 41
        let exp;
        self.java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 0
        (});

        let invalid_expression_found = match &exp {
            Okkey)
                           ref , .java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 38
            _ => false,
        };
        if invalid_expression_found {
            return error!(ErrorKind::TermAttributeAsPlaceable, self.ptr);
        }

        Oklet=selftake_byte_if(
    }
}