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064997fb FG |
1 | |
2 | <style> | |
3 | body { margin: 0; } | |
4 | pre { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padding: 0.4em; } | |
5 | ||
6 | .lifetime { color: #DFAF8F; font-style: italic; } | |
7 | .label { color: #DFAF8F; font-style: italic; } | |
8 | .comment { color: #7F9F7F; } | |
9 | .documentation { color: #629755; } | |
10 | .intra_doc_link { font-style: italic; } | |
11 | .injected { opacity: 0.65 ; } | |
12 | .struct, .enum { color: #7CB8BB; } | |
13 | .enum_variant { color: #BDE0F3; } | |
14 | .string_literal { color: #CC9393; } | |
15 | .field { color: #94BFF3; } | |
16 | .function { color: #93E0E3; } | |
17 | .function.unsafe { color: #BC8383; } | |
18 | .trait.unsafe { color: #BC8383; } | |
19 | .operator.unsafe { color: #BC8383; } | |
20 | .mutable.unsafe { color: #BC8383; text-decoration: underline; } | |
21 | .keyword.unsafe { color: #BC8383; font-weight: bold; } | |
22 | .macro.unsafe { color: #BC8383; } | |
23 | .parameter { color: #94BFF3; } | |
24 | .text { color: #DCDCCC; } | |
25 | .type { color: #7CB8BB; } | |
26 | .builtin_type { color: #8CD0D3; } | |
27 | .type_param { color: #DFAF8F; } | |
28 | .attribute { color: #94BFF3; } | |
29 | .numeric_literal { color: #BFEBBF; } | |
30 | .bool_literal { color: #BFE6EB; } | |
31 | .macro { color: #94BFF3; } | |
32 | .derive { color: #94BFF3; font-style: italic; } | |
33 | .module { color: #AFD8AF; } | |
34 | .value_param { color: #DCDCCC; } | |
35 | .variable { color: #DCDCCC; } | |
36 | .format_specifier { color: #CC696B; } | |
37 | .mutable { text-decoration: underline; } | |
38 | .escape_sequence { color: #94BFF3; } | |
39 | .keyword { color: #F0DFAF; font-weight: bold; } | |
40 | .control { font-style: italic; } | |
41 | .reference { font-style: italic; font-weight: bold; } | |
42 | ||
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43 | .invalid_escape_sequence { color: #FC5555; text-decoration: wavy underline; } |
44 | .unresolved_reference { color: #FC5555; text-decoration: wavy underline; } | |
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45 | </style> |
46 | <pre><code><span class="keyword">macro_rules</span><span class="macro_bang">!</span> <span class="macro declaration">println</span> <span class="brace">{</span> | |
47 | <span class="parenthesis">(</span><span class="punctuation">$</span><span class="parenthesis">(</span><span class="punctuation">$</span>arg<span class="colon">:</span>tt<span class="parenthesis">)</span><span class="punctuation">*</span><span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">></span> <span class="parenthesis">(</span><span class="brace">{</span> | |
781aab86 | 48 | <span class="punctuation">$</span>crate<span class="colon">:</span><span class="colon">:</span>io<span class="colon">:</span><span class="colon">:</span>_print<span class="parenthesis">(</span>format_args_nl<span class="punctuation">!</span><span class="parenthesis">(</span><span class="punctuation">$</span><span class="parenthesis">(</span><span class="punctuation">$</span>arg<span class="parenthesis">)</span><span class="punctuation">*</span><span class="parenthesis">)</span><span class="parenthesis">)</span><span class="semicolon">;</span> |
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49 | <span class="brace">}</span><span class="parenthesis">)</span> |
50 | <span class="brace">}</span> | |
51 | <span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="builtin_attr attribute library">rustc_builtin_macro</span><span class="attribute_bracket attribute">]</span> | |
52 | <span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="builtin_attr attribute library">macro_export</span><span class="attribute_bracket attribute">]</span> | |
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53 | <span class="keyword">macro_rules</span><span class="macro_bang">!</span> <span class="macro declaration">format_args_nl</span> <span class="brace">{</span><span class="brace">}</span> |
54 | ||
55 | <span class="keyword">mod</span> <span class="module declaration">panic</span> <span class="brace">{</span> | |
56 | <span class="keyword">pub</span> <span class="keyword">macro</span> <span class="macro declaration">panic_2015</span> <span class="brace">{</span> | |
57 | <span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">></span> <span class="parenthesis">(</span> | |
58 | <span class="punctuation">$</span>crate<span class="colon">:</span><span class="colon">:</span>panicking<span class="colon">:</span><span class="colon">:</span>panic<span class="parenthesis">(</span><span class="string_literal">"explicit panic"</span><span class="parenthesis">)</span> | |
59 | <span class="parenthesis">)</span><span class="comma">,</span> | |
2b03887a | 60 | <span class="parenthesis">(</span><span class="punctuation">$</span>msg<span class="colon">:</span>literal <span class="punctuation">$</span><span class="parenthesis">(</span><span class="comma">,</span><span class="parenthesis">)</span><span class="punctuation">?</span><span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">></span> <span class="parenthesis">(</span> |
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61 | <span class="punctuation">$</span>crate<span class="colon">:</span><span class="colon">:</span>panicking<span class="colon">:</span><span class="colon">:</span>panic<span class="parenthesis">(</span><span class="punctuation">$</span>msg<span class="parenthesis">)</span> |
62 | <span class="parenthesis">)</span><span class="comma">,</span> | |
63 | <span class="comment">// Use `panic_str` instead of `panic_display::<&str>` for non_fmt_panic lint.</span> | |
2b03887a | 64 | <span class="parenthesis">(</span><span class="punctuation">$</span>msg<span class="colon">:</span>expr <span class="punctuation">$</span><span class="parenthesis">(</span><span class="comma">,</span><span class="parenthesis">)</span><span class="punctuation">?</span><span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">></span> <span class="parenthesis">(</span> |
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65 | <span class="punctuation">$</span>crate<span class="colon">:</span><span class="colon">:</span>panicking<span class="colon">:</span><span class="colon">:</span>panic_str<span class="parenthesis">(</span><span class="punctuation">$</span>msg<span class="parenthesis">)</span> |
66 | <span class="parenthesis">)</span><span class="comma">,</span> | |
67 | <span class="comment">// Special-case the single-argument case for const_panic.</span> | |
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68 | <span class="parenthesis">(</span><span class="string_literal">"{}"</span><span class="comma">,</span> <span class="punctuation">$</span>arg<span class="colon">:</span>expr <span class="punctuation">$</span><span class="parenthesis">(</span><span class="comma">,</span><span class="parenthesis">)</span><span class="punctuation">?</span><span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">></span> <span class="parenthesis">(</span> |
69 | <span class="punctuation">$</span>crate<span class="colon">:</span><span class="colon">:</span>panicking<span class="colon">:</span><span class="colon">:</span>panic_display<span class="parenthesis">(</span><span class="punctuation">&</span><span class="punctuation">$</span>arg<span class="parenthesis">)</span> | |
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70 | <span class="parenthesis">)</span><span class="comma">,</span> |
71 | <span class="parenthesis">(</span><span class="punctuation">$</span>fmt<span class="colon">:</span>expr<span class="comma">,</span> <span class="punctuation">$</span><span class="parenthesis">(</span><span class="punctuation">$</span>arg<span class="colon">:</span>tt<span class="parenthesis">)</span><span class="punctuation">+</span><span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">></span> <span class="parenthesis">(</span> | |
781aab86 | 72 | <span class="punctuation">$</span>crate<span class="colon">:</span><span class="colon">:</span>panicking<span class="colon">:</span><span class="colon">:</span>panic_fmt<span class="parenthesis">(</span>const_format_args<span class="punctuation">!</span><span class="parenthesis">(</span><span class="punctuation">$</span>fmt<span class="comma">,</span> <span class="punctuation">$</span><span class="parenthesis">(</span><span class="punctuation">$</span>arg<span class="parenthesis">)</span><span class="punctuation">+</span><span class="parenthesis">)</span><span class="parenthesis">)</span> |
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73 | <span class="parenthesis">)</span><span class="comma">,</span> |
74 | <span class="brace">}</span> | |
75 | <span class="brace">}</span> | |
76 | ||
77 | <span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="builtin_attr attribute library">rustc_builtin_macro</span><span class="parenthesis attribute">(</span><span class="none attribute">std_panic</span><span class="parenthesis attribute">)</span><span class="attribute_bracket attribute">]</span> | |
78 | <span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="builtin_attr attribute library">macro_export</span><span class="attribute_bracket attribute">]</span> | |
79 | <span class="keyword">macro_rules</span><span class="macro_bang">!</span> <span class="macro declaration">panic</span> <span class="brace">{</span><span class="brace">}</span> | |
80 | <span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="builtin_attr attribute library">rustc_builtin_macro</span><span class="attribute_bracket attribute">]</span> | |
81 | <span class="keyword">macro_rules</span><span class="macro_bang">!</span> <span class="macro declaration">assert</span> <span class="brace">{</span><span class="brace">}</span> | |
82 | <span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="builtin_attr attribute library">rustc_builtin_macro</span><span class="attribute_bracket attribute">]</span> | |
83 | <span class="keyword">macro_rules</span><span class="macro_bang">!</span> <span class="macro declaration">asm</span> <span class="brace">{</span><span class="brace">}</span> | |
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84 | <span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="builtin_attr attribute library">rustc_builtin_macro</span><span class="attribute_bracket attribute">]</span> |
85 | <span class="keyword">macro_rules</span><span class="macro_bang">!</span> <span class="macro declaration">concat</span> <span class="brace">{</span><span class="brace">}</span> | |
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86 | |
87 | <span class="keyword">macro_rules</span><span class="macro_bang">!</span> <span class="macro declaration">toho</span> <span class="brace">{</span> | |
88 | <span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">></span> <span class="parenthesis">(</span><span class="punctuation">$</span>crate<span class="colon">:</span><span class="colon">:</span>panic<span class="punctuation">!</span><span class="parenthesis">(</span><span class="string_literal">"not yet implemented"</span><span class="parenthesis">)</span><span class="parenthesis">)</span><span class="semicolon">;</span> | |
781aab86 | 89 | <span class="parenthesis">(</span><span class="punctuation">$</span><span class="parenthesis">(</span><span class="punctuation">$</span>arg<span class="colon">:</span>tt<span class="parenthesis">)</span><span class="punctuation">+</span><span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">></span> <span class="parenthesis">(</span><span class="punctuation">$</span>crate<span class="colon">:</span><span class="colon">:</span>panic<span class="punctuation">!</span><span class="parenthesis">(</span><span class="string_literal">"not yet implemented: {}"</span><span class="comma">,</span> format_args<span class="punctuation">!</span><span class="parenthesis">(</span><span class="punctuation">$</span><span class="parenthesis">(</span><span class="punctuation">$</span>arg<span class="parenthesis">)</span><span class="punctuation">+</span><span class="parenthesis">)</span><span class="parenthesis">)</span><span class="parenthesis">)</span><span class="semicolon">;</span> |
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90 | <span class="brace">}</span> |
91 | ||
92 | <span class="keyword">fn</span> <span class="function declaration">main</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span> | |
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93 | <span class="keyword">let</span> <span class="variable declaration">a</span> <span class="operator">=</span> <span class="char_literal">'</span><span class="escape_sequence">\n</span><span class="char_literal">'</span><span class="semicolon">;</span> |
94 | <span class="keyword">let</span> <span class="variable declaration">a</span> <span class="operator">=</span> <span class="char_literal">'</span><span class="escape_sequence">\t</span><span class="char_literal">'</span><span class="semicolon">;</span> | |
95 | <span class="keyword">let</span> <span class="variable declaration">a</span> <span class="operator">=</span> <span class="char_literal">'\e'</span><span class="semicolon">;</span> <span class="comment">// invalid escape</span> | |
96 | <span class="keyword">let</span> <span class="variable declaration">a</span> <span class="operator">=</span> <span class="char_literal">'e'</span><span class="semicolon">;</span> | |
97 | <span class="keyword">let</span> <span class="variable declaration">a</span> <span class="operator">=</span> <span class="char_literal">' '</span><span class="semicolon">;</span> | |
98 | <span class="keyword">let</span> <span class="variable declaration">a</span> <span class="operator">=</span> <span class="char_literal">'</span><span class="escape_sequence">\u{48}</span><span class="char_literal">'</span><span class="semicolon">;</span> | |
99 | <span class="keyword">let</span> <span class="variable declaration">a</span> <span class="operator">=</span> <span class="char_literal">'</span><span class="escape_sequence">\u{4823}</span><span class="char_literal">'</span><span class="semicolon">;</span> | |
100 | <span class="keyword">let</span> <span class="variable declaration">a</span> <span class="operator">=</span> <span class="char_literal">'</span><span class="escape_sequence">\x65</span><span class="char_literal">'</span><span class="semicolon">;</span> | |
101 | <span class="keyword">let</span> <span class="variable declaration">a</span> <span class="operator">=</span> <span class="char_literal">'</span><span class="escape_sequence">\x00</span><span class="char_literal">'</span><span class="semicolon">;</span> | |
102 | ||
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103 | <span class="keyword">let</span> <span class="variable declaration">a</span> <span class="operator">=</span> <span class="byte_literal">b'</span><span class="escape_sequence">\xFF</span><span class="byte_literal">'</span><span class="semicolon">;</span> |
104 | ||
fe692bf9 | 105 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="escape_sequence">{{</span><span class="string_literal macro">Hello</span><span class="escape_sequence">}}</span><span class="string_literal macro">"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> |
064997fb | 106 | <span class="comment">// from https://doc.rust-lang.org/std/fmt/index.html</span> |
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107 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> <span class="comment">// => "Hello"</span> |
108 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello, </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro">!"</span><span class="comma macro">,</span> <span class="string_literal macro">"world"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> <span class="comment">// => "Hello, world!"</span> | |
109 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"The number is </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="numeric_literal macro">1</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> <span class="comment">// => "The number is 1"</span> | |
110 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">?</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="parenthesis macro">(</span><span class="numeric_literal macro">3</span><span class="comma macro">,</span> <span class="numeric_literal macro">4</span><span class="parenthesis macro">)</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> <span class="comment">// => "(3, 4)"</span> | |
781aab86 | 111 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="variable">value</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="variable declaration macro">value</span><span class="operator macro">=</span><span class="numeric_literal macro">4</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> <span class="comment">// => "4"</span> |
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112 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="numeric_literal macro">1</span><span class="comma macro">,</span> <span class="numeric_literal macro">2</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> <span class="comment">// => "1 2"</span> |
113 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="numeric_literal">0</span><span class="numeric_literal">4</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="numeric_literal macro">42</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> <span class="comment">// => "0042" with leading zerosV</span> | |
114 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="numeric_literal">1</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="numeric_literal">0</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="numeric_literal macro">1</span><span class="comma macro">,</span> <span class="numeric_literal macro">2</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> <span class="comment">// => "2 1 1 2"</span> | |
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115 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="variable">argument</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="variable declaration macro">argument</span> <span class="operator macro">=</span> <span class="string_literal macro">"test"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> <span class="comment">// => "test"</span> |
116 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="variable">name</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="numeric_literal macro">1</span><span class="comma macro">,</span> <span class="variable declaration macro">name</span> <span class="operator macro">=</span> <span class="numeric_literal macro">2</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> <span class="comment">// => "2 1"</span> | |
117 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="variable">a</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="variable">c</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="variable">b</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="variable declaration macro">a</span><span class="operator macro">=</span><span class="string_literal macro">"a"</span><span class="comma macro">,</span> <span class="variable declaration macro">b</span><span class="operator macro">=</span><span class="char_literal macro">'b'</span><span class="comma macro">,</span> <span class="variable declaration macro">c</span><span class="operator macro">=</span><span class="numeric_literal macro">3</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> <span class="comment">// => "a 3 b"</span> | |
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118 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="escape_sequence">{{</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="escape_sequence">}}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="numeric_literal macro">2</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> <span class="comment">// => "{2}"</span> |
119 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal macro">!"</span><span class="comma macro">,</span> <span class="string_literal macro">"x"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
120 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="numeric_literal">1</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal macro">!"</span><span class="comma macro">,</span> <span class="string_literal macro">"x"</span><span class="comma macro">,</span> <span class="numeric_literal macro">5</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
121 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="numeric_literal">1</span><span class="format_specifier">:</span><span class="numeric_literal">0</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal macro">!"</span><span class="comma macro">,</span> <span class="numeric_literal macro">5</span><span class="comma macro">,</span> <span class="string_literal macro">"x"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
781aab86 | 122 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="variable">width</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal macro">!"</span><span class="comma macro">,</span> <span class="string_literal macro">"x"</span><span class="comma macro">,</span> <span class="variable declaration macro">width</span> <span class="operator macro">=</span> <span class="numeric_literal macro">5</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> |
fe692bf9 FG |
123 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier"><</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal macro">!"</span><span class="comma macro">,</span> <span class="string_literal macro">"x"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> |
124 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">-</span><span class="format_specifier"><</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal macro">!"</span><span class="comma macro">,</span> <span class="string_literal macro">"x"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
125 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">^</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal macro">!"</span><span class="comma macro">,</span> <span class="string_literal macro">"x"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
126 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">></span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal macro">!"</span><span class="comma macro">,</span> <span class="string_literal macro">"x"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
127 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">+</span><span class="format_specifier">}</span><span class="string_literal macro">!"</span><span class="comma macro">,</span> <span class="numeric_literal macro">5</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
128 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">#</span><span class="variable">x</span><span class="format_specifier">}</span><span class="string_literal macro">!"</span><span class="comma macro">,</span> <span class="numeric_literal macro">27</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
129 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="numeric_literal">0</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal macro">!"</span><span class="comma macro">,</span> <span class="numeric_literal macro">5</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
130 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="numeric_literal">0</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal macro">!"</span><span class="comma macro">,</span> <span class="numeric_literal macro">-</span><span class="numeric_literal macro">5</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
131 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">#</span><span class="numeric_literal">0</span><span class="numeric_literal">10</span><span class="variable">x</span><span class="format_specifier">}</span><span class="string_literal macro">!"</span><span class="comma macro">,</span> <span class="numeric_literal macro">27</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
132 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="numeric_literal">0</span><span class="format_specifier">}</span><span class="string_literal macro"> is </span><span class="format_specifier">{</span><span class="numeric_literal">1</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="string_literal macro">"x"</span><span class="comma macro">,</span> <span class="numeric_literal macro">0.01</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
133 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="numeric_literal">1</span><span class="format_specifier">}</span><span class="string_literal macro"> is </span><span class="format_specifier">{</span><span class="numeric_literal">2</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="numeric_literal">0</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="numeric_literal macro">5</span><span class="comma macro">,</span> <span class="string_literal macro">"x"</span><span class="comma macro">,</span> <span class="numeric_literal macro">0.01</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
134 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="numeric_literal">0</span><span class="format_specifier">}</span><span class="string_literal macro"> is </span><span class="format_specifier">{</span><span class="numeric_literal">2</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="numeric_literal">1</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="string_literal macro">"x"</span><span class="comma macro">,</span> <span class="numeric_literal macro">5</span><span class="comma macro">,</span> <span class="numeric_literal macro">0.01</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
135 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> is </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="format_specifier">*</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="string_literal macro">"x"</span><span class="comma macro">,</span> <span class="numeric_literal macro">5</span><span class="comma macro">,</span> <span class="numeric_literal macro">0.01</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
136 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> is </span><span class="format_specifier">{</span><span class="numeric_literal">2</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="format_specifier">*</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="string_literal macro">"x"</span><span class="comma macro">,</span> <span class="numeric_literal macro">5</span><span class="comma macro">,</span> <span class="numeric_literal macro">0.01</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
781aab86 FG |
137 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> is </span><span class="format_specifier">{</span><span class="variable">number</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="variable">prec</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="string_literal macro">"x"</span><span class="comma macro">,</span> <span class="variable declaration macro">prec</span> <span class="operator macro">=</span> <span class="numeric_literal macro">5</span><span class="comma macro">,</span> <span class="variable declaration macro">number</span> <span class="operator macro">=</span> <span class="numeric_literal macro">0.01</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> |
138 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro">, `</span><span class="format_specifier">{</span><span class="variable">name</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="format_specifier">*</span><span class="format_specifier">}</span><span class="string_literal macro">` has 3 fractional digits"</span><span class="comma macro">,</span> <span class="string_literal macro">"Hello"</span><span class="comma macro">,</span> <span class="numeric_literal macro">3</span><span class="comma macro">,</span> <span class="variable declaration macro">name</span><span class="operator macro">=</span><span class="numeric_literal macro">1234.56</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
139 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro">, `</span><span class="format_specifier">{</span><span class="variable">name</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="format_specifier">*</span><span class="format_specifier">}</span><span class="string_literal macro">` has 3 characters"</span><span class="comma macro">,</span> <span class="string_literal macro">"Hello"</span><span class="comma macro">,</span> <span class="numeric_literal macro">3</span><span class="comma macro">,</span> <span class="variable declaration macro">name</span><span class="operator macro">=</span><span class="string_literal macro">"1234.56"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
140 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro">, `</span><span class="format_specifier">{</span><span class="variable">name</span><span class="format_specifier">:</span><span class="format_specifier">></span><span class="numeric_literal">8</span><span class="format_specifier">.</span><span class="format_specifier">*</span><span class="format_specifier">}</span><span class="string_literal macro">` has 3 right-aligned characters"</span><span class="comma macro">,</span> <span class="string_literal macro">"Hello"</span><span class="comma macro">,</span> <span class="numeric_literal macro">3</span><span class="comma macro">,</span> <span class="variable declaration macro">name</span><span class="operator macro">=</span><span class="string_literal macro">"1234.56"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
064997fb FG |
141 | |
142 | <span class="keyword">let</span> <span class="punctuation">_</span> <span class="operator">=</span> <span class="string_literal">"{}"</span> | |
143 | <span class="keyword">let</span> <span class="punctuation">_</span> <span class="operator">=</span> <span class="string_literal">"{{}}"</span><span class="semicolon">;</span> | |
144 | ||
fe692bf9 FG |
145 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="escape_sequence">{{</span><span class="escape_sequence">}}</span><span class="string_literal macro">"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> |
146 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="escape_sequence">{{</span><span class="string_literal macro"> Hello"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
147 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello </span><span class="escape_sequence">}}</span><span class="string_literal macro">"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
148 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="escape_sequence">{{</span><span class="string_literal macro">Hello</span><span class="escape_sequence">}}</span><span class="string_literal macro">"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
149 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="escape_sequence">{{</span><span class="string_literal macro"> Hello </span><span class="escape_sequence">}}</span><span class="string_literal macro">"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
150 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="escape_sequence">{{</span><span class="string_literal macro">Hello </span><span class="escape_sequence">}}</span><span class="string_literal macro">"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
151 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="escape_sequence">{{</span><span class="string_literal macro"> Hello</span><span class="escape_sequence">}}</span><span class="string_literal macro">"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
064997fb | 152 | |
fe692bf9 | 153 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">r"Hello, </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro">!"</span><span class="comma macro">,</span> <span class="string_literal macro">"world"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> |
064997fb FG |
154 | |
155 | <span class="comment">// escape sequences</span> | |
fe692bf9 FG |
156 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"Hello</span><span class="escape_sequence">\n</span><span class="string_literal macro">World"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> |
157 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="escape_sequence">\u{48}</span><span class="escape_sequence">\x65</span><span class="escape_sequence">\x6C</span><span class="escape_sequence">\x6C</span><span class="escape_sequence">\x6F</span><span class="string_literal macro"> World"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
064997fb | 158 | |
add651ee FG |
159 | <span class="keyword">let</span> <span class="punctuation">_</span> <span class="operator">=</span> <span class="string_literal">"</span><span class="escape_sequence">\x28</span><span class="escape_sequence">\x28</span><span class="escape_sequence">\x00</span><span class="escape_sequence">\x63</span><span class="invalid_escape_sequence">\xFF</span><span class="escape_sequence">\u{FF}</span><span class="escape_sequence">\n</span><span class="string_literal">"</span><span class="semicolon">;</span> <span class="comment">// invalid non-UTF8 escape sequences</span> |
160 | <span class="keyword">let</span> <span class="punctuation">_</span> <span class="operator">=</span> <span class="string_literal">b"</span><span class="escape_sequence">\x28</span><span class="escape_sequence">\x28</span><span class="escape_sequence">\x00</span><span class="escape_sequence">\x63</span><span class="escape_sequence">\xFF</span><span class="invalid_escape_sequence">\u{FF}</span><span class="escape_sequence">\n</span><span class="string_literal">"</span><span class="semicolon">;</span> <span class="comment">// valid bytes, invalid unicodes</span> | |
161 | <span class="keyword">let</span> <span class="punctuation">_</span> <span class="operator">=</span> <span class="string_literal">c"</span><span class="escape_sequence">\u{FF}</span><span class="escape_sequence">\xFF</span><span class="string_literal">"</span><span class="semicolon">;</span> <span class="comment">// valid bytes, valid unicodes</span> | |
162 | <span class="keyword">let</span> <span class="variable declaration reference">backslash</span> <span class="operator">=</span> <span class="string_literal">r"\\"</span><span class="semicolon">;</span> | |
064997fb | 163 | |
781aab86 FG |
164 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="escape_sequence">\x41</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="variable declaration macro">A</span> <span class="operator macro">=</span> <span class="numeric_literal macro">92</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> |
165 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="variable">ничоси</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="variable declaration macro">ничоси</span> <span class="operator macro">=</span> <span class="numeric_literal macro">92</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
064997fb | 166 | |
fe692bf9 | 167 | <span class="macro">println</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="variable">x</span><span class="format_specifier">?</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> "</span><span class="comma macro">,</span> <span class="unresolved_reference macro">thingy</span><span class="comma macro">,</span> <span class="unresolved_reference macro">n2</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> |
781aab86 FG |
168 | <span class="macro">panic</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"{}"</span><span class="comma macro">,</span> <span class="numeric_literal macro">0</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> |
169 | <span class="macro">panic</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"more {}"</span><span class="comma macro">,</span> <span class="numeric_literal macro">1</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
170 | <span class="macro">assert</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="bool_literal macro">true</span><span class="comma macro">,</span> <span class="string_literal macro">"{}"</span><span class="comma macro">,</span> <span class="numeric_literal macro">1</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
171 | <span class="macro">assert</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="bool_literal macro">true</span><span class="comma macro">,</span> <span class="string_literal macro">"{} asdasd"</span><span class="comma macro">,</span> <span class="numeric_literal macro">1</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
172 | <span class="macro">toho</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"{}fmt"</span><span class="comma macro">,</span> <span class="numeric_literal macro">0</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
173 | <span class="keyword">let</span> <span class="variable declaration">i</span><span class="colon">:</span> <span class="builtin_type">u64</span> <span class="operator">=</span> <span class="numeric_literal">3</span><span class="semicolon">;</span> | |
174 | <span class="keyword">let</span> <span class="variable declaration">o</span><span class="colon">:</span> <span class="builtin_type">u64</span><span class="semicolon">;</span> | |
175 | <span class="macro unsafe">asm</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span> | |
176 | <span class="string_literal macro">"mov {0}, {1}"</span><span class="comma macro">,</span> | |
177 | <span class="string_literal macro">"add {0}, 5"</span><span class="comma macro">,</span> | |
178 | <span class="none macro">out</span><span class="parenthesis macro">(</span><span class="none macro">reg</span><span class="parenthesis macro">)</span> <span class="none macro">o</span><span class="comma macro">,</span> | |
179 | <span class="keyword control macro">in</span><span class="parenthesis macro">(</span><span class="none macro">reg</span><span class="parenthesis macro">)</span> <span class="none macro">i</span><span class="comma macro">,</span> | |
180 | <span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
181 | ||
182 | <span class="macro default_library library">format_args</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="macro macro">concat</span><span class="macro_bang macro">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"{}"</span><span class="parenthesis macro">)</span><span class="comma macro">,</span> <span class="string_literal macro">"{}"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
183 | <span class="macro default_library library">format_args</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="variable macro reference">backslash</span><span class="comma macro">,</span> <span class="macro default_library library macro">format_args</span><span class="macro_bang macro">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="numeric_literal macro">0</span><span class="parenthesis macro">)</span><span class="comma macro">,</span> <span class="unresolved_reference macro">foo</span><span class="comma macro">,</span> <span class="string_literal macro">"bar"</span><span class="comma macro">,</span> <span class="macro macro">toho</span><span class="macro_bang macro">!</span><span class="parenthesis macro">(</span><span class="parenthesis macro">)</span><span class="comma macro">,</span> <span class="variable macro reference">backslash</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> | |
064997fb | 184 | <span class="brace">}</span></code></pre> |