// codesnip-guard: char_convert
#[cfg_attr(any(),rustfmt::skip)]pub use self::char_convert::{CharConvertTryFrom,CharConvertTryInto};#[cfg_attr(any(),rustfmt::skip)]mod char_convert{pub trait CharConvertTryInto<T>:Sized{#[doc=" map `'0'..='9'` to `0..=9`"]fn into_number(self)->Option<T>;#[doc=" map (`'A'..='Z'` or `'a'..='z'`) to `0..=25`"]fn into_alphabetic_number(self)->Option<T>;#[doc=" map `'a'..='z'` to `0..=25`"]fn into_lower_alphabetic_number(self)->Option<T>;#[doc=" map `'A'..='Z'` to `0..=25`"]fn into_upper_alphabetic_number(self)->Option<T>;}pub trait CharConvertTryFrom<T>:Sized{#[doc=" map `0..=9` to `'0'..='9'`"]fn from_number(num:T)->Option<Self>;#[doc=" map `0..=25` to `'A'..='Z'`"]fn from_alphabetic_number(num:T)->Option<Self>;#[doc=" map `0..=25` to `'a'..='z'`"]fn from_lower_alphabetic_number(num:T)->Option<Self>;#[doc=" map `0..=25` to `'A'..='Z'`"]fn from_upper_alphabetic_number(num:T)->Option<Self>;}macro_rules!impl_char_convert_unsigned{($($ty:ident)*)=>{$(impl CharConvertTryInto<$ty>for char{fn into_number(self)->Option<$ty>{match self{'0'..='9'=>Some((self as u8-b'0')as$ty),_=>None,}}fn into_alphabetic_number(self)->Option<$ty>{match self{'A'..='Z'=>Some((self as u8-b'A')as$ty),'a'..='z'=>Some((self as u8-b'a')as$ty),_=>None,}}fn into_lower_alphabetic_number(self)->Option<$ty>{if self.is_ascii_lowercase(){Some((self as u8-b'a')as$ty)}else{None}}fn into_upper_alphabetic_number(self)->Option<$ty>{if self.is_ascii_uppercase(){Some((self as u8-b'A')as$ty)}else{None}}}impl CharConvertTryFrom<$ty>for char{fn from_number(num:$ty)->Option<Self>{if num<10{Some((b'0'+num as u8)as char)}else{None}}fn from_alphabetic_number(num:$ty)->Option<Self>{if num<26{Some((b'A'+num as u8)as char)}else{None}}fn from_lower_alphabetic_number(num:$ty)->Option<Self>{if num<26{Some((b'a'+num as u8)as char)}else{None}}fn from_upper_alphabetic_number(num:$ty)->Option<Self>{if num<26{Some((b'A'+num as u8)as char)}else{None}}}impl CharConvertTryInto<$ty>for u8{fn into_number(self)->Option<$ty>{let num=self.wrapping_sub(b'0');if num<10{Some(num as$ty)}else{None}}fn into_alphabetic_number(self)->Option<$ty>{match self{b'A'..=b'Z'=>Some((self-b'A')as$ty),b'a'..=b'z'=>Some((self-b'a')as$ty),_=>None,}}fn into_lower_alphabetic_number(self)->Option<$ty>{if self.is_ascii_lowercase(){Some((self-b'a')as$ty)}else{None}}fn into_upper_alphabetic_number(self)->Option<$ty>{if self.is_ascii_uppercase(){Some((self-b'A')as$ty)}else{None}}}impl CharConvertTryFrom<$ty>for u8{fn from_number(num:$ty)->Option<Self>{if num<10{Some(b'0'+num as u8)}else{None}}fn from_alphabetic_number(num:$ty)->Option<Self>{if num<26{Some(b'A'+num as u8)}else{None}}fn from_lower_alphabetic_number(num:$ty)->Option<Self>{if num<26{Some(b'a'+num as u8)}else{None}}fn from_upper_alphabetic_number(num:$ty)->Option<Self>{if num<26{Some(b'A'+num as u8)}else{None}}})*};}impl_char_convert_unsigned!(u8 u16 u32 u64 u128 usize);}