| add-dotAll-does-not-affect-dotAll-property.js |
---
author: Ron Buckton
description: >
Adding dotAll (`s`) modifier does not affect RegExp instance `dotAll` property.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2244 |
| add-dotAll-does-not-affect-ignoreCase-flag.js |
---
author: Ron Buckton
description: >
Adding dotAll (`s`) modifier in group should not affect ignoreCase (`i`) flag.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3474 |
| add-dotAll-does-not-affect-multiline-flag.js |
---
author: Ron Buckton
description: >
Adding dotAll (`s`) modifier in group should not affect multiline (`m`) flag.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3023 |
| add-dotAll.js |
---
author: Ron Buckton
description: >
dotAll (`s`) modifier can be added via `(?s:)` or `(?s-:)`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
7976 |
| add-ignoreCase-affects-backreferences.js |
---
author: Ron Buckton
description: >
Adding ignoreCase (`i`) modifier in group affects backreferences in group.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2901 |
| add-ignoreCase-affects-characterClasses.js |
---
author: Ron Buckton
description: >
Adding ignoreCase (`i`) modifier in group affects character classes in group.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3245 |
| add-ignoreCase-affects-characterEscapes.js |
---
author: Ron Buckton
description: >
Adding ignoreCase (`i`) modifier in group affects character escapes in group.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3100 |
| add-ignoreCase-affects-slash-lower-b.js |
---
author: Ron Buckton
description: >
Adding ignoreCase (`i`) modifier affects matching for `\b`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
GetWordCharacters ( modifiers )
The abstract operation GetWordCharacters takes argument modifiers (a Modifiers Record) and returns a CharSet. It performs the following steps when called:
1. Let wordCharacters be the mathematical set that is the union of all sixty-three characters in "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_" (letters, numbers, and U+005F (LOW LINE) in the Unicode Basic Latin block) and all characters c for which c is not in that set but Canonicalize(c, modifiers) is.
2. Return wordCharacters.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
4023 |
| add-ignoreCase-affects-slash-lower-p.js |
---
author: Ron Buckton
description: >
Adding ignoreCase (`i`) modifier affects matching for `\p{}`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
GetWordCharacters ( modifiers )
The abstract operation GetWordCharacters takes argument modifiers (a Modifiers Record) and returns a CharSet. It performs the following steps when called:
1. Let wordCharacters be the mathematical set that is the union of all sixty-three characters in "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_" (letters, numbers, and U+005F (LOW LINE) in the Unicode Basic Latin block) and all characters c for which c is not in that set but Canonicalize(c, modifiers) is.
2. Return wordCharacters.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3380 |
| add-ignoreCase-affects-slash-lower-w.js |
---
author: Ron Buckton
description: >
Adding ignoreCase (`i`) modifier affects matching for `\w`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
GetWordCharacters ( modifiers )
The abstract operation GetWordCharacters takes argument modifiers (a Modifiers Record) and returns a CharSet. It performs the following steps when called:
1. Let wordCharacters be the mathematical set that is the union of all sixty-three characters in "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_" (letters, numbers, and U+005F (LOW LINE) in the Unicode Basic Latin block) and all characters c for which c is not in that set but Canonicalize(c, modifiers) is.
2. Return wordCharacters.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3903 |
| add-ignoreCase-affects-slash-upper-b.js |
---
author: Ron Buckton
description: >
Adding ignoreCase (`i`) modifier affects matching for `\B`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
GetWordCharacters ( modifiers )
The abstract operation GetWordCharacters takes argument modifiers (a Modifiers Record) and returns a CharSet. It performs the following steps when called:
1. Let wordCharacters be the mathematical set that is the union of all sixty-three characters in "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_" (letters, numbers, and U+005F (LOW LINE) in the Unicode Basic Latin block) and all characters c for which c is not in that set but Canonicalize(c, modifiers) is.
2. Return wordCharacters.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3200 |
| add-ignoreCase-affects-slash-upper-p.js |
---
author: Ron Buckton
description: >
Adding ignoreCase (`i`) modifier affects matching for `\P{}`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
GetWordCharacters ( modifiers )
The abstract operation GetWordCharacters takes argument modifiers (a Modifiers Record) and returns a CharSet. It performs the following steps when called:
1. Let wordCharacters be the mathematical set that is the union of all sixty-three characters in "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_" (letters, numbers, and U+005F (LOW LINE) in the Unicode Basic Latin block) and all characters c for which c is not in that set but Canonicalize(c, modifiers) is.
2. Return wordCharacters.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3478 |
| add-ignoreCase-affects-slash-upper-w.js |
---
author: Ron Buckton
description: >
Adding ignoreCase (`i`) modifier affects matching for `\W`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
GetWordCharacters ( modifiers )
The abstract operation GetWordCharacters takes argument modifiers (a Modifiers Record) and returns a CharSet. It performs the following steps when called:
1. Let wordCharacters be the mathematical set that is the union of all sixty-three characters in "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_" (letters, numbers, and U+005F (LOW LINE) in the Unicode Basic Latin block) and all characters c for which c is not in that set but Canonicalize(c, modifiers) is.
2. Return wordCharacters.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3158 |
| add-ignoreCase-does-not-affect-dotAll-flag.js |
---
author: Ron Buckton
description: >
Adding ignoreCase (`i`) modifier in group should not affect dotAll (`s`) flag.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3522 |
| add-ignoreCase-does-not-affect-ignoreCase-property.js |
---
author: Ron Buckton
description: >
Adding ignoreCase (`i`) modifier does not affect RegExp instance `ignoreCase` property.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2785 |
| add-ignoreCase-does-not-affect-multiline-flag.js |
---
author: Ron Buckton
description: >
Adding ignoreCase (`i`) modifier in group should not affect multiline (`m`) flag.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3525 |
| add-ignoreCase.js |
---
author: Ron Buckton
description: >
ignoreCase (`i`) modifier can be added via `(?i:)` or `(?i-:)`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2194 |
| add-multiline-does-not-affect-dotAll-flag.js |
---
author: Ron Buckton
description: >
Adding multiline (`m`) modifier in group should not affect dotAll (`s`) flag.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3023 |
| add-multiline-does-not-affect-ignoreCase-flag.js |
---
author: Ron Buckton
description: >
Adding multiline (`m`) modifier in group should not affect ignoreCase (`i`) flag.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3513 |
| add-multiline-does-not-affect-multiline-property.js |
---
author: Ron Buckton
description: >
Adding multiline (`m`) modifier does not affect RegExp instance `multiline` property.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2274 |
| add-multiline.js |
---
author: Ron Buckton
description: >
multiline (`m`) modifier can be added via `(?m:)` or `(?m-:)`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2243 |
| add-remove-modifiers.js |
---
author: Ron Buckton
description: >
Modifiers can be both added and removed via `(?ims-ims:)`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2208 |
| browser.js |
|
0 |
| changing-dotAll-flag-does-not-affect-dotAll-modifier.js |
---
author: Ron Buckton
description: >
New dotAll (`s`) flag from RegExp constructor does not affect dotAll modifier in group.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
5606 |
| changing-ignoreCase-flag-does-not-affect-ignoreCase-modifier.js |
---
author: Ron Buckton
description: >
New ignoreCase (`i`) flag from RegExp constructor does not affect ignoreCase modifier in group.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3009 |
| changing-multiline-flag-does-not-affect-multiline-modifier.js |
---
author: Ron Buckton
description: >
New multiline (`m`) flag from RegExp constructor does not affect multiline modifier in group.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2756 |
| nested-add-remove-modifiers.js |
---
author: Ron Buckton
description: >
Modifiers can be nested.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2182 |
| nesting-add-dotAll-within-remove-dotAll.js |
---
author: Ron Buckton
description: >
Can add multiline (`m`) modifier for group nested within a group that removes multiline modifier.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
4947 |
| nesting-add-ignoreCase-within-remove-ignoreCase.js |
---
author: Ron Buckton
description: >
Can add ignoreCase (`i`) modifier for group nested within a group that removes ignoreCase modifier.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2228 |
| nesting-add-multiline-within-remove-multiline.js |
---
author: Ron Buckton
description: >
Can add multiline (`m`) modifier for group nested within a group that removes multiline modifier.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2413 |
| nesting-remove-dotAll-within-add-dotAll.js |
---
author: Ron Buckton
description: >
Can remove multiline (`m`) modifier for group nested within a group that adds multiline modifier.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
4913 |
| nesting-remove-ignoreCase-within-add-ignoreCase.js |
---
author: Ron Buckton
description: >
Can remove ignoreCase (`i`) modifier for group nested within a group that adds ignoreCase modifier.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2228 |
| nesting-remove-multiline-within-add-multiline.js |
---
author: Ron Buckton
description: >
Can remove multiline (`m`) modifier for group nested within a group that adds multiline modifier.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2451 |
| remove-dotAll-does-not-affect-dotAll-property.js |
---
author: Ron Buckton
description: >
Removing dotAll (`s`) modifier does not affect RegExp instance `dotAll` property.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2169 |
| remove-dotAll-does-not-affect-ignoreCase-flag.js |
---
author: Ron Buckton
description: >
Removing dotAll (`s`) modifier in group should not affect ignoreCase (`i`) flag.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2568 |
| remove-dotAll-does-not-affect-multiline-flag.js |
---
author: Ron Buckton
description: >
Removing dotAll (`s`) modifier in group should not affect multiline (`m`) flag.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2593 |
| remove-dotAll.js |
---
author: Ron Buckton
description: >
dotAll (`s`) modifier can be added via `(?s:)` or `(?s-:)`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
4983 |
| remove-ignoreCase-affects-backreferences.js |
---
author: Ron Buckton
description: >
Removing ignoreCase (`i`) modifier in group affects backreferences in group.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2301 |
| remove-ignoreCase-affects-characterClasses.js |
---
author: Ron Buckton
description: >
Removing ignoreCase (`i`) modifier in group affects character classes in group.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2798 |
| remove-ignoreCase-affects-characterEscapes.js |
---
author: Ron Buckton
description: >
Removing ignoreCase (`i`) modifier in group affects character escapes in group.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2490 |
| remove-ignoreCase-affects-slash-lower-b.js |
---
author: Ron Buckton
description: >
Removing ignoreCase (`i`) modifier affects matching for `\b`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
GetWordCharacters ( modifiers )
The abstract operation GetWordCharacters takes argument modifiers (a Modifiers Record) and returns a CharSet. It performs the following steps when called:
1. Let wordCharacters be the mathematical set that is the union of all sixty-three characters in "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_" (letters, numbers, and U+005F (LOW LINE) in the Unicode Basic Latin block) and all characters c for which c is not in that set but Canonicalize(c, modifiers) is.
2. Return wordCharacters.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3030 |
| remove-ignoreCase-affects-slash-lower-p.js |
---
author: Ron Buckton
description: >
Removing ignoreCase (`i`) modifier affects matching for `\p{}`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
GetWordCharacters ( modifiers )
The abstract operation GetWordCharacters takes argument modifiers (a Modifiers Record) and returns a CharSet. It performs the following steps when called:
1. Let wordCharacters be the mathematical set that is the union of all sixty-three characters in "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_" (letters, numbers, and U+005F (LOW LINE) in the Unicode Basic Latin block) and all characters c for which c is not in that set but Canonicalize(c, modifiers) is.
2. Return wordCharacters.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3110 |
| remove-ignoreCase-affects-slash-lower-w.js |
---
author: Ron Buckton
description: >
Removing ignoreCase (`i`) modifier affects matching for `\w`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
GetWordCharacters ( modifiers )
The abstract operation GetWordCharacters takes argument modifiers (a Modifiers Record) and returns a CharSet. It performs the following steps when called:
1. Let wordCharacters be the mathematical set that is the union of all sixty-three characters in "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_" (letters, numbers, and U+005F (LOW LINE) in the Unicode Basic Latin block) and all characters c for which c is not in that set but Canonicalize(c, modifiers) is.
2. Return wordCharacters.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3018 |
| remove-ignoreCase-affects-slash-upper-b.js |
---
author: Ron Buckton
description: >
Removing ignoreCase (`i`) modifier affects matching for `\B`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
GetWordCharacters ( modifiers )
The abstract operation GetWordCharacters takes argument modifiers (a Modifiers Record) and returns a CharSet. It performs the following steps when called:
1. Let wordCharacters be the mathematical set that is the union of all sixty-three characters in "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_" (letters, numbers, and U+005F (LOW LINE) in the Unicode Basic Latin block) and all characters c for which c is not in that set but Canonicalize(c, modifiers) is.
2. Return wordCharacters.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3049 |
| remove-ignoreCase-affects-slash-upper-p.js |
---
author: Ron Buckton
description: >
Removing ignoreCase (`i`) modifier affects matching for `\P{}`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
GetWordCharacters ( modifiers )
The abstract operation GetWordCharacters takes argument modifiers (a Modifiers Record) and returns a CharSet. It performs the following steps when called:
1. Let wordCharacters be the mathematical set that is the union of all sixty-three characters in "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_" (letters, numbers, and U+005F (LOW LINE) in the Unicode Basic Latin block) and all characters c for which c is not in that set but Canonicalize(c, modifiers) is.
2. Return wordCharacters.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3159 |
| remove-ignoreCase-affects-slash-upper-w.js |
---
author: Ron Buckton
description: >
Removing ignoreCase (`i`) modifier affects matching for `\W`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
GetWordCharacters ( modifiers )
The abstract operation GetWordCharacters takes argument modifiers (a Modifiers Record) and returns a CharSet. It performs the following steps when called:
1. Let wordCharacters be the mathematical set that is the union of all sixty-three characters in "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_" (letters, numbers, and U+005F (LOW LINE) in the Unicode Basic Latin block) and all characters c for which c is not in that set but Canonicalize(c, modifiers) is.
2. Return wordCharacters.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
3008 |
| remove-ignoreCase-does-not-affect-dotAll-flag.js |
---
author: Ron Buckton
description: >
Removing ignoreCase (`i`) modifier in group should not affect dotAll (`s`) flag.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2562 |
| remove-ignoreCase-does-not-affect-ignoreCase-property.js |
---
author: Ron Buckton
description: >
Removing ignoreCase (`i`) modifier does not affect RegExp instance `ignoreCase` property.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2579 |
| remove-ignoreCase-does-not-affect-multiline-flag.js |
---
author: Ron Buckton
description: >
Removing ignoreCase (`i`) modifier in group should not affect multiline (`m`) flag.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2559 |
| remove-ignoreCase.js |
---
author: Ron Buckton
description: >
ignoreCase (`i`) modifier can be removed via `(?i:)` or `(?i-:)`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2691 |
| remove-multiline-does-not-affect-dotAll-flag.js |
---
author: Ron Buckton
description: >
Removing multiline (`m`) modifier in group should not affect dotAll (`s`) flag.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2589 |
| remove-multiline-does-not-affect-ignoreCase-flag.js |
---
author: Ron Buckton
description: >
Removing multiline (`m`) modifier in group should not affect ignoreCase (`i`) flag.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2565 |
| remove-multiline-does-not-affect-multiline-property.js |
---
author: Ron Buckton
description: >
Removing multiline (`m`) modifier does not affect RegExp instance `multiline` property.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by RegularExpressionFlags.
2. Let removeModifiers be the empty String.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), removeModifiers).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2080 |
| remove-multiline.js |
---
author: Ron Buckton
description: >
multiline (`m`) modifier can be removed via `(?-m:)`.
info: |
Runtime Semantics: CompileAtom
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
UpdateModifiers ( modifiers, add, remove )
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
1. Let dotAll be modifiers.[[DotAll]].
2. Let ignoreCase be modifiers.[[IgnoreCase]].
3. Let multiline be modifiers.[[Multiline]].
4. If add contains "s", set dotAll to true.
5. If add contains "i", set ignoreCase to true.
6. If add contains "m", set multiline to true.
7. If remove contains "s", set dotAll to false.
8. If remove contains "i", set ignoreCase to false.
9. If remove contains "m", set multiline to false.
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
esid: sec-compileatom
features: [regexp-modifiers]
--- |
2307 |
| shell.js |
|
0 |
| syntax |
|
|