update anchor
This commit is contained in:
Jie Liang
@ -14,7 +14,8 @@ Swift 的*“词法结构（lexical structure）”* 描述了能构成该语言
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> *空白* → [*空白项*](#whitespace-item) [*空白*](#whitespace)<sub>可选</sub>
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> ###### whitespace-item {# whitespace-item}
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#### whitespace-item {# whitespace-item}
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> *空白项* → [*断行符*](#line-break)
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@ -24,7 +25,8 @@ Swift 的*“词法结构（lexical structure）”* 描述了能构成该语言
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> *空白项* → U+0000，U+0009，U+000B，U+000C 或者 U+0020
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> ###### line-break {# line-break}
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#### line-break {# line-break}
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> *断行符* → U+000A
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@ -32,23 +34,28 @@ Swift 的*“词法结构（lexical structure）”* 描述了能构成该语言
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> *断行符* → U+000D 接着是 U+000A
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> ###### comment {# comment}
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#### comment {# comment}
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> *注释* → // [*注释内容*](#comment-text) [断行符*](#line-break)
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> ###### multiline-comment {# multiline-comment}
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#### multiline-comment {# multiline-comment}
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> *多行注释* → `/*` [*多行注释内容*](#multiline-commnet-text) `*/`
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> ###### comment-text {# comment-text}
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#### comment-text {# comment-text}
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> *注释内容* → [*注释内容项*](#comment-text-item) [*注释内容*](#comment-text)<sub>可选</sub>
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> ###### comment-text-item {# comment-text-item}
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#### comment-text-item {# comment-text-item}
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> *注释内容项* → 任何 Unicode 标量值， 除了 U+000A 或者 U+000D
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> ###### multiline-commnet-text {# multiline-commnet-text}
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#### multiline-commnet-text {# multiline-commnet-text}
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> *多行注释内容* → [*多行注释内容项*](#multiline-comment-text-item) [*多行注释内容*](#multiline-comment-text)<sub>可选</sub>
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@ -76,7 +83,8 @@ Swift 的*“词法结构（lexical structure）”* 描述了能构成该语言
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> *标识符列表* → [*标识符*](#identifier) | [*标识符*](#identifier) **,** [*标识符列表*](#identifier)
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> ###### identifier-head {# identifier-head}
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#### identifier-head {# identifier-head}
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> *头部标识符* → 大写或小写字母 A - Z
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@ -112,17 +120,20 @@ Swift 的*“词法结构（lexical structure）”* 描述了能构成该语言
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> *标识符字符* → 数值 0 - 9
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> ###### identifier-character {# identifier-character}
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#### identifier-character {# identifier-character}
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> *标识符字符* → U+0300–U+036F，U+1DC0–U+1DFF，U+20D0–U+20FF，或者 U+FE20–U+FE2F
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> *标识符字符* → [*头部标识符*](#identifier-head)
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> ###### identifier-characters {# identifier-characters}
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#### identifier-characters {# identifier-characters}
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> *标识符字符组* → [*标识符字符*](#identifier-character) [*标识符字符组*](#identifier-characters)<sub>可选</sub>
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> ###### implicit-parameter-name {# implicit-parameter-name}
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#### implicit-parameter-name {# implicit-parameter-name}
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> *隐式参数名* → **$** [*十进制数字列表*](#decimal-digit)
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@ -181,7 +192,8 @@ true // 布尔值字面量
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> 整数字面量语法
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> ###### integer-literal {# integer-literal}
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#### integer-literal {# integer-literal}
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> *整数字面量* → [*二进制字面量*](#binary-literal)
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@ -191,43 +203,52 @@ true // 布尔值字面量
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> *整数字面量* → [*十六进制字面量*](#hexadecimal-literal)
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> ###### binary-literal {# binary-literal}
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#### binary-literal {# binary-literal}
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> *二进制字面量* → **0b** [*二进制数字*](#binary-digit) [*二进制字面量字符组*](#binary-literal-characters)<sub>可选</sub>
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> ###### binary-digit {# binary-digit}
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#### binary-digit {# binary-digit}
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> *二进制数字* → 数值 0 到 1
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> *二进制字面量字符* → [*二进制数字*](#binary-digit) | _
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> ###### binary-literal-characters {# binary-literal-characters}
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#### binary-literal-characters {# binary-literal-characters}
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> *二进制字面量字符组* → [*二进制字面量字符*](#binary-literal-character) [*二进制字面量字符组*](#binary-literal-characters)<sub>可选</sub>
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> ###### octal-literal {# octal-literal}
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#### octal-literal {# octal-literal}
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> *八进制字面量* → **0o** [*八进字数字*](#octal-digit) [*八进制字符组*](#octal-literal-characters)<sub>可选</sub>
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> ###### octal-digit {# octal-digit}
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#### octal-digit {# octal-digit}
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> *八进字数字* → 数值 0 到 7
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> *八进制字符* → [*八进字数字*](#octal-digit) | _
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> ###### octal-literal-characters {# octal-literal-characters}
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#### octal-literal-characters {# octal-literal-characters}
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> *八进制字符组* → [*八进制字符*](#octal-literal-character) [*八进制字符组*](#octal-literal-characters)<sub>可选</sub>
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> ###### decimal-literal {# decimal-literal}
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#### decimal-literal {# decimal-literal}
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> *十进制字面量* → [*十进制数字*](#decimal-digit) [*十进制字符组*](#decimal-literal-characters)<sub>可选</sub>
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> ###### decimal-digit {# decimal-digit}
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#### decimal-digit {# decimal-digit}
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> *十进制数字* → 数值 0 到 9
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> ###### decimal-literal-characters {# decimal-literal-characters}
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#### decimal-literal-characters {# decimal-literal-characters}
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> *十进制数字组* → [*十进制数字*](#decimal-digit) [*十进制数字组*](#decimal-literal-characters)<sub>可选</sub>
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@ -235,17 +256,20 @@ true // 布尔值字面量
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> *十进制字符组* → [*十进制字符*](#decimal-literal-characters) [*十进制字符组*](#decimal-literal-characters)<sub>可选</sub>
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> ###### hexadecimal-literal {# hexadecimal-literal}
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#### hexadecimal-literal {# hexadecimal-literal}
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> *十六进制字面量* → **0x** [*十六进制数字*](#hexadecimal-digit) [*十六进制字面量字符组*](#hexadecimal-literal-characters)<sub>可选</sub>
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> ###### hexadecimal-digit {# hexadecimal-digit}
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#### hexadecimal-digit {# hexadecimal-digit}
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> *十六进制数字* → 数值 0 到 9, 字母 a 到 f, 或 A 到 F
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> *十六进制字符* → [*十六进制数字*](#hexadecimal-digit) | _
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> ###### hexadecimal-literal-characters {# hexadecimal-literal-characters}
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#### hexadecimal-literal-characters {# hexadecimal-literal-characters}
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> *十六进制字面量字符组* → [*十六进制字符*](#hexadecimal-literal-characters) [*十六进制字面量字符组*](#hexadecimal-literal-characters)<sub>可选</sub>
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@ -267,37 +291,45 @@ true // 布尔值字面量
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> 浮点数字面量语法
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> ###### floating-point-literal {# floating-point-literal}
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#### floating-point-literal {# floating-point-literal}
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> *浮点数字面量* → [*十进制字面量*](#decimal-literal) [*十进制分数*](#decimal-fraction)<sub>可选</sub> [*十进制指数*](#decimal-exponent)<sub>可选</sub>
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> *浮点数字面量* → [*十六进制字面量*](#hexadecimal-literal) [*十六进制分数*](#hexadecimal-fraction)<sub>可选</sub> [*十六进制指数*](#hexadecimal-exponent)
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> ###### decimal-fraction {# decimal-fraction}
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#### decimal-fraction {# decimal-fraction}
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> *十进制分数* → **.** [*十进制字面量*](#decimal-literal)
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> ###### decimal-exponent {# decimal-exponent}
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#### decimal-exponent {# decimal-exponent}
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> *十进制指数* → [*十进制指数 e*](#floating-point-e) [*正负号*](#sign)<sub>可选</sub> [*十进制字面量*](#decimal-literal)
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> ###### hexadecimal-fraction {# hexadecimal-fraction}
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#### hexadecimal-fraction {# hexadecimal-fraction}
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> *十六进制分数* → **.** [*十六进制数字*](#hexadecimal-digit) [*十六进制字面量字符组*](#hexadecimal-literal-characters)<sub>可选</sub>
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> ###### hexadecimal-exponent {# hexadecimal-exponent}
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#### hexadecimal-exponent {# hexadecimal-exponent}
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> *十六进制指数* → [*十六进制指数 p*](#floating-point-p) [*正负号*](#sign)<sub>可选</sub> [*十进制字面量*](#decimal-literal)
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> ###### floating-point-e {# floating-point-e}
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#### floating-point-e {# floating-point-e}
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> *十进制指数 e* → **e** | **E**
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> ###### floating-point-p {# floating-point-p}
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#### floating-point-p {# floating-point-p}
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> *十六进制指数 p* → **p** | **P**
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> ###### sign {# sign}
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#### sign {# sign}
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> *正负号* → **+** | **-**
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@ -398,7 +430,8 @@ let textB = "Hello world"
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> *字符串闭分隔定界符* → **"** [*字符串扩展分隔符*](#extended-string-literal-delimiter)<sub>可选</sub>
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> ###### static-string-literal {# static-string-literal}
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#### static-string-literal {# static-string-literal}
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> *静态字符串字面量* → [*字符串开分隔定界符*](#extended-string-literal-delimiter) [*引用文本*](#quoted-text)<sub>可选</sub> [*字符串闭分隔定界符*](#extended-string-literal-delimiter)
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@ -408,45 +441,54 @@ let textB = "Hello world"
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> *多行字符串闭分隔定界符* → **"""** [*字符串扩展分隔符*](#extended-string-literal-delimiter)
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> ###### extended-string-literal-delimiter {# extended-string-literal-delimiter}
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#### extended-string-literal-delimiter {# extended-string-literal-delimiter}
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> *字符串扩展分隔符* → **#** [*字符串扩展分隔符*](#extended-string-literal-delimiter)<sub>可选</sub>
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> ###### quoted-text {# quoted-text}
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#### quoted-text {# quoted-text}
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> *引用文本* → [*引用文本项*](#quoted-text-item) [*引用文本*](#quoted-text)<sub>可选</sub>
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> ###### quoted-text-item {# quoted-text-item}
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#### quoted-text-item {# quoted-text-item}
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> *引用文本项* → [*转义字符*](#escaped-character)
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> *引用文本项* → 除了 **"**、**\\**、U+000A、U+000D 以外的所有 Unicode 字符
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> ###### multiline-quoted-text {# multiline-quoted-text}
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#### multiline-quoted-text {# multiline-quoted-text}
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> *多行引用文本* → [*多行引用文本项*](#multiline-quoted-text-item) [*多行引用文本*](#multiline-quoted-text)<sub>可选</sub>
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> ###### multiline-quoted-text-item {# multiline-quoted-text-item}
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#### multiline-quoted-text-item {# multiline-quoted-text-item}
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> *多行引用文本项* [*转义字符*](#escaped-character)<sub>可选</sub>
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> ###### multiline-quoted-text {# multiline-quoted-text}
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#### multiline-quoted-text {# multiline-quoted-text}
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> *多行引用文本* → 除了 **\** 以外的任何Unicode标量值
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> *多行引用文本* → [*转义换行*](#escaped-newline)
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> ###### interpolated-string-literal {# interpolated-string-literal}
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#### interpolated-string-literal {# interpolated-string-literal}
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> *插值字符串字面量* → [*字符串开分隔定界符*](#extended-string-literal-delimiter) [*插值文本*](#interpolated-text)<sub>可选</sub> [*字符串闭分隔定界符*](#extended-string-literal-delimiter)
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> *插值字符串字面量* → [*多行字符串开分隔定界符*](#extended-string-literal-delimiter) [*插值文本*](#interpolated-text)<sub>可选</sub> [*多行字符串闭分隔定界符*](#extended-string-literal-delimiter)
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> ###### interpolated-text {# interpolated-text}
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#### interpolated-text {# interpolated-text}
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> *插值文本* → [*插值文本项*](#interpolated-text-item) [*插值文本*](#interpolated-text)<sub>可选</sub>
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> ###### interpolated-text-item {# interpolated-text-item}
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#### interpolated-text-item {# interpolated-text-item}
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> *插值文本项* → **\\****(**[*表达式*](./04_Expressions.md)**)** | [*引用文本项*](#quoted-text-item)
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@ -454,21 +496,25 @@ let textB = "Hello world"
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> *多行插值文本项* → **\\(** [表达式](./04_Expressions.md) **)** | [多行引用文本项](#multiline-quoted-text-item)
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> ###### escape-sequence {# escape-sequence}
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#### escape-sequence {# escape-sequence}
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> *转义序列* → **\\** [字符串扩展分隔符](#extended-string-literal-delimiter)
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> ###### escaped-character {# escaped-character}
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#### escaped-character {# escaped-character}
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> *转义字符* → [*转义序列*](#escape-sequence) **0** | [*转义序列*](#escape-sequence) **\\** | [*转义序列*](#escape-sequence) **t** | [*转义序列*](#escape-sequence) **n** | [*转义序列*](#escape-sequence) **r** | [*转义序列*](#escape-sequence) **\"** | [*转义序列*](#escape-sequence) **'**
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> *转义字符* → [*转义序列*](#escape-sequence) **u {** [*unicode 标量数字*](#unicode-scalar-digits) **}**
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> ###### unicode-scalar-digits {# unicode-scalar-digits}
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#### unicode-scalar-digits {# unicode-scalar-digits}
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> *unicode 标量数字* → 一到八位的十六进制数字
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> ###### escaped-newline {# escaped-newline}
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#### escaped-newline {# escaped-newline}
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> *转义换行符* → [*转义序列*](#escape-sequence) [*空白*](#whitespace)<sub>可选</sub> [*断行符*](#line-break)
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@ -508,7 +554,8 @@ Swift 标准库定义了许多可供使用的运算符，其中大部分在 [基
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> *运算符* → [*头部点运算符*](#dot-operator-head) [*点运算符字符组*](#dot-operator-characters)
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> ###### operator-head {# operator-head}
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#### operator-head {# operator-head}
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> *头部运算符* → **/** | **=** | **-** | **+** | **!** | __*__ | **%** | **<** | **>** | **&** | **|** | **^** | **~** | **?**
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@ -540,7 +587,8 @@ Swift 标准库定义了许多可供使用的运算符，其中大部分在 [基
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> *头部运算符* → U+3008–U+3030
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> ###### operator-character {# operator-character}
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#### operator-character {# operator-character}
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> *运算符字符* → [*头部运算符*](#operator-head)
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@ -556,19 +604,23 @@ Swift 标准库定义了许多可供使用的运算符，其中大部分在 [基
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> *运算符字符* → U+E0100–U+E01EF
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> ###### operator-characters {# operator-characters}
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#### operator-characters {# operator-characters}
|
||||
>
|
||||
> *运算符字符组* → [*运算符字符*](#operator-character) [*运算符字符组*](#operator-characters)<sub>可选</sub>
|
||||
>
|
||||
> ###### dot-operator-head {# dot-operator-head}
|
||||
>
|
||||
#### dot-operator-head {# dot-operator-head}
|
||||
>
|
||||
> *头部点运算符* → **..**
|
||||
>
|
||||
> ###### dot-operator-character {# dot-operator-character}
|
||||
>
|
||||
#### dot-operator-character {# dot-operator-character}
|
||||
>
|
||||
> *点运算符字符* → **.** | [*运算符字符*](#operator-character)
|
||||
>
|
||||
> ###### dot-operator-characters {# dot-operator-characters}
|
||||
>
|
||||
#### dot-operator-characters {# dot-operator-characters}
|
||||
>
|
||||
> *点运算符字符组* → [*点运算符字符*](#dot-operator-character) [*点运算符字符组*](#dot-operator-characters)<sub>可选</sub>
|
||||
>
|
||||
|
||||
Reference in New Issue
Block a user