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CC Mode: Correct and simplify quoted number regexps

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C++ Mode now gives correct fontification when \' is inserted
between the adjacent apostrophes in the number 0xde'adb''eef.

* lisp/progmodes/cc-mode.el (c-maybe-quoted-number-head):
Simplify and correct.
(c-maybe-quoted-number-tail, c-maybe-quoted-number): Simplify.
This commit is contained in:
Alan Mackenzie 2024-10-14 21:27:04 +00:00
parent 6864ac2bc3
commit 2a6f1527f6
1 changed files with 11 additions and 11 deletions
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22
lisp/progmodes/cc-mode.el
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@ -1774,14 +1774,14 @@ position of `after-change-functions'.")
(defconst c-maybe-quoted-number-head
(concat
"\\(0\\("
"\\([Xx]\\([[:xdigit:]]\\('[[:xdigit:]]\\|[[:xdigit:]]\\)*'?\\)?\\)"
"[Xx]\\([[:xdigit:]]\\('?[[:xdigit:]]\\)*\\)?"
"\\|"
"\\([Bb]\\([01]\\('[01]\\|[01]\\)*'?\\)?\\)"
"[Bb]\\([01]\\('?[01]\\)*\\)?"
"\\|"
"\\('[0-7]\\|[0-7]\\)*'?"
"\\('?[0-7]\\)*"
"\\)"
"\\|"
"[1-9]\\('[0-9]\\|[0-9]\\)*'?"
"[1-9]\\('?[0-9]\\)*"
"\\)")
"Regexp matching the head of a numeric literal, including with digit separators.")
@ -1808,11 +1808,11 @@ position of `after-change-functions'.")
(defconst c-maybe-quoted-number-tail
(concat
"\\("
"\\([xX']?[[:xdigit:]]\\('[[:xdigit:]]\\|[[:xdigit:]]\\)*\\)"
"\\([xX']?[[:xdigit:]]\\('?[[:xdigit:]]\\)*\\)"
"\\|"
"\\([bB']?[01]\\('[01]\\|[01]\\)*\\)"
"\\([bB']?[01]\\('?[01]\\)*\\)"
"\\|"
"\\('?[0-9]\\('[0-9]\\|[0-9]\\)*\\)"
"\\('?[0-9]\\)+"
"\\)")
"Regexp matching the tail of a numeric literal, including with digit separators.
Note that this is a strict tail, so won't match, e.g. \"0x....\".")
@ -1828,14 +1828,14 @@ Note that this is a strict tail, so won't match, e.g. \"0x....\".")
(defconst c-maybe-quoted-number
(concat
"\\(0\\("
"\\([Xx][[:xdigit:]]\\('[[:xdigit:]]\\|[[:xdigit:]]\\)*\\)"
"\\([Xx][[:xdigit:]]\\('?[[:xdigit:]]\\)*\\)"
"\\|"
"\\([Bb][01]\\('[01]\\|[01]\\)*\\)"
"\\([Bb][01]\\('?[01]\\)*\\)"
"\\|"
"\\('[0-7]\\|[0-7]\\)*"
"\\('?[0-7]\\)*"
"\\)"
"\\|"
"[1-9]\\('[0-9]\\|[0-9]\\)*"
"[1-9]\\('?[0-9]\\)*"
"\\)")
"Regexp matching a numeric literal, including with digit separators.")