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Tolerate unescaped newlines in string literals #140

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Merged
merged 5 commits into from
Feb 10, 2021
Merged

Tolerate unescaped newlines in string literals #140

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80669a6
Tolerate unescaped newlines in string literals
Oct 6, 2020
603a846
Remove redundant 'jsx_string' rule. Now there's just one 'string' rule
Oct 19, 2020
ea09d6e
Merge remote-tracking branch 'official/master' into attr
mjambon Feb 5, 2021
5963a88
Merge remote-tracking branch 'origin/master' into attr
mjambon Feb 10, 2021
144391f
Simplify regexp for string literals + tests
mjambon Feb 10, 2021
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10 changes: 8 additions & 2 deletions grammar.js
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Original file line number Diff line number Diff line change
Expand Up @@ -805,19 +805,25 @@ module.exports = grammar({
// Primitives
//

// Here we tolerate unescaped newlines in double-quoted and
// single-quoted string literals.
// This is legal in typescript as jsx/tsx attribute values (as of
// 2020), and perhaps will be valid in javascript as well in the
// future.
//
string: $ => choice(
seq(
'"',
repeat(choice(
token.immediate(prec(PREC.STRING, /[^"\\\n]+|\\\r?\n/)),
token.immediate(prec(PREC.STRING, /[^"\\]+/)),
$.escape_sequence
)),
'"'
),
seq(
"'",
repeat(choice(
token.immediate(prec(PREC.STRING, /[^'\\\n]+|\\\r?\n/)),
token.immediate(prec(PREC.STRING, /[^'\\]+/)),
$.escape_sequence
)),
"'"
Expand Down
12 changes: 6 additions & 6 deletions src/grammar.json
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Original file line number Diff line number Diff line change
Expand Up @@ -4441,7 +4441,7 @@
"value": 2,
"content": {
"type": "PATTERN",
"value": "[^\"\\\\\\n]+|\\\\\\r?\\n"
"value": "[^\"\\\\]+"
}
}
},
Expand Down Expand Up @@ -4477,7 +4477,7 @@
"value": 2,
"content": {
"type": "PATTERN",
"value": "[^'\\\\\\n]+|\\\\\\r?\\n"
"value": "[^'\\\\]+"
}
}
},
Expand Down Expand Up @@ -4563,7 +4563,7 @@
},
{
"type": "PATTERN",
"value": "[^*]*\\*+([^/*][^*]*\\*+)*"
"value": "[^*]*\\*+([^\\/*][^*]*\\*+)*"
},
{
"type": "STRING",
Expand Down Expand Up @@ -4725,7 +4725,7 @@
},
{
"type": "PATTERN",
"value": "[^/\\\\\\[\\n]"
"value": "[^\\/\\\\\\[\\n]"
}
]
}
Expand Down Expand Up @@ -5234,13 +5234,13 @@
"members": [
{
"type": "PATTERN",
"value": "[^\\x00-\\x1F\\s0-9:;`\"'@#.,|^&<=>+\\-*/\\\\%?!~()\\[\\]{}\\uFEFF\\u2060\\u200B\\u00A0]|\\\\u[0-9a-fA-F]{4}|\\\\u\\{[0-9a-fA-F]+\\}"
"value": "[^\\x00-\\x1F\\s0-9:;`\"'@#.,|^&<=>+\\-*\\/\\\\%?!~()\\[\\]{}\\uFEFF\\u2060\\u200B\\u00A0]|\\\\u[0-9a-fA-F]{4}|\\\\u\\{[0-9a-fA-F]+\\}"
},
{
"type": "REPEAT",
"content": {
"type": "PATTERN",
"value": "[^\\x00-\\x1F\\s:;`\"'@#.,|^&<=>+\\-*/\\\\%?!~()\\[\\]{}\\uFEFF\\u2060\\u200B\\u00A0]|\\\\u[0-9a-fA-F]{4}|\\\\u\\{[0-9a-fA-F]+\\}"
"value": "[^\\x00-\\x1F\\s:;`\"'@#.,|^&<=>+\\-*\\/\\\\%?!~()\\[\\]{}\\uFEFF\\u2060\\u200B\\u00A0]|\\\\u[0-9a-fA-F]{4}|\\\\u\\{[0-9a-fA-F]+\\}"
}
}
]
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4 changes: 4 additions & 0 deletions src/node-types.json
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Expand Up @@ -3031,6 +3031,10 @@
"type": "class",
"named": false
},
{
"type": "comment",
"named": true
},
{
"type": "const",
"named": false
Expand Down
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