1use core::str::from_utf8_unchecked;
2
3use alloc::borrow::Cow;
4use alloc::string::String;
5use alloc::vec::Vec;
6
7#[cfg(feature = "std")]
8use std::io::{self, Write};
9
10macro_rules! parse_script {
11 ($e:expr, $step:ident, $b:block, $bq:block, $bc:block $(, $($addi:expr),+)?) => {
12 match $step {
13 0 => {
14 match $e {
15 b'<' => $step = 1,
16 b'\\' => $step = 100,
17 _ => (),
18 }
19 }
20 1 => {
21 match $e {
22 b'\\' => $step = 2,
23 _ => (),
24 }
25 }
26 2 => {
27 match $e {
28 b'/' => $step = 3,
29 b'!' => $step = 10,
30 $($(| $addi)+ => {
31 $step = 0;
32 $bq
33 },)?
34 _ => $step = 0,
35 }
36 }
37 3 => {
38 match $e {
39 b's' | b'S' => $step = 4,
40 b'\\' => $step = 100,
41 _ => $step = 0,
42 }
43 }
44 4 => {
45 match $e {
46 b'c' | b'C' => $step = 5,
47 b'\\' => $step = 100,
48 _ => $step = 0,
49 }
50 }
51 5 => {
52 match $e {
53 b'r' | b'R' => $step = 6,
54 b'\\' => $step = 100,
55 _ => $step = 0,
56 }
57 }
58 6 => {
59 match $e {
60 b'i' | b'I' => $step = 7,
61 b'\\' => $step = 100,
62 _ => $step = 0,
63 }
64 }
65 7 => {
66 match $e {
67 b'p' | b'P' => $step = 8,
68 b'\\' => $step = 100,
69 _ => $step = 0,
70 }
71 }
72 8 => {
73 match $e {
74 b't' | b'T' => $step = 9,
75 b'\\' => $step = 100,
76 _ => $step = 0,
77 }
78 }
79 9 => {
80 match $e {
81 b'>' | 9..=13 | 28..=32 => {
82 $step = 0;
83 $b
84 },
85 b'\\' => $step = 100,
86 _ => $step = 0,
87 }
88 }
89 10 => {
90 match $e {
91 b'-' => $step = 11,
92 b'\\' => $step = 100,
93 _ => $step = 0,
94 }
95 }
96 11 => {
97 match $e {
98 b'-' => {
99 $step = 0;
100 $bc
101 },
102 b'\\' => $step = 100,
103 _ => $step = 0,
104 }
105 }
106 100 => {
107 match $e {
108 b'<' => $step = 1,
109 $($(| $addi)+ => {
110 $step = 0;
111 $bq
112 },)?
113 _ => $step = 0,
114 }
115 }
116 _ => unreachable!(),
117 }
118 };
119}
120
121macro_rules! parse_script_single_quoted_text {
122 ($e:expr, $step:ident, $b:block, $bq:block, $bc:block) => {
123 parse_script!($e, $step, $b, $bq, $bc, b'\'');
124 };
125}
126
127macro_rules! parse_script_double_quoted_text {
128 ($e:expr, $step:ident, $b:block, $bq:block, $bc:block) => {
129 parse_script!($e, $step, $b, $bq, $bc, b'"');
130 };
131}
132
133macro_rules! parse_script_quoted_text {
134 ($e:expr, $step:ident, $b:block, $bq:block, $bc:block) => {
135 parse_script!($e, $step, $b, $bq, $bc, b'\'', b'"');
136 };
137}
138
139decode_impl! {
140 7;
141 /// The following substring is unescaped:
142 ///
143 /// * `<\/script>` => `</script>`
144 parse_script;
145 /// Decode text from the `<script>` element.
146 decode_script;
147 /// Write text from the `<script>` element to a mutable `String` reference and return the encoded string slice.
148 decode_script_to_string;
149 /// Write text from the `<script>` element to a mutable `Vec<u8>` reference and return the encoded data slice.
150 decode_script_to_vec;
151 /// Write text from the `<script>` element to a writer.
152 decode_script_to_writer;
153}
154
155decode_impl! {
156 7;
157 /// The following substring and character is unescaped:
158 ///
159 /// * `<\/script>` => `</script>`
160 /// * `\'` => `'`
161 parse_script_single_quoted_text;
162 /// Decode text from a single quoted text in the `<script>` element.
163 decode_script_single_quoted_text;
164 /// Write text from a single quoted text in the `<script>` element to a mutable `String` reference and return the encoded string slice.
165 decode_script_single_quoted_text_to_string;
166 /// Write text from a single quoted text in the `<script>` element to a mutable `Vec<u8>` reference and return the encoded data slice.
167 decode_script_single_quoted_text_to_vec;
168 /// Write text from a single quoted text in the `<script>` element to a writer.
169 decode_script_single_quoted_text_to_writer;
170}
171
172decode_impl! {
173 7;
174 /// The following substring and character are unescaped:
175 ///
176 /// * `<\/script>` => `</script>`
177 /// * `\"` => `"`
178 parse_script_double_quoted_text;
179 /// Decode text from a double quoted text in the `<script>` element.
180 decode_script_double_quoted_text;
181 /// Write text from a double quoted text in the `<script>` element to a mutable `String` reference and return the encoded string slice.
182 decode_script_double_quoted_text_to_string;
183 /// Write text from a double quoted text in the `<script>` element to a mutable `Vec<u8>` reference and return the encoded data slice.
184 decode_script_double_quoted_text_to_vec;
185 /// Write text from a double quoted text in the `<script>` element to a writer.
186 decode_script_double_quoted_text_to_writer;
187}
188
189decode_impl! {
190 7;
191 /// The following substring and characters are unescaped:
192 ///
193 /// * `<\/script>` => `</script>`
194 /// * `\"` => `"`
195 /// * `\'` => `'`
196 parse_script_quoted_text;
197 /// Decode text from a quoted text in the `<script>` element.
198 decode_script_quoted_text;
199 /// Write text from a quoted text in the `<script>` element to a mutable `String` reference and return the encoded string slice.
200 decode_script_quoted_text_to_string;
201 /// Write text from a quoted text in the `<script>` element to a mutable `Vec<u8>` reference and return the encoded data slice.
202 decode_script_quoted_text_to_vec;
203 /// Write text from a quoted text in the `<script>` element to a writer.
204 decode_script_quoted_text_to_writer;
205}
206