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Speed up 'msft' and 'watcom' compilation error regexps

Browse source 
They have similar structure, and both suffer from being able to
match leading spaces in multiple ways which leads to bad performance
when backtracking (bug#39595).

* lisp/progmodes/compile.el (compilation-error-regexp-alist-alist):
Improved 'msft' and 'watcom' regexps.
This commit is contained in:
Mattias Engdegård 2020-02-14 23:38:24 +01:00
parent 96a269d045
commit 39410cfc5a
1 changed files with 2 additions and 2 deletions
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4
lisp/progmodes/compile.el
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@ -221,7 +221,7 @@ of[ \t]+\"?\\([a-zA-Z]?:?[^\":\n]+\\)\"?:" 3 2 nil (1))
;; considered before EDG.
;; The message may be a "warning", "error", or "fatal error" with
;; an error code, or "see declaration of" without an error code.
"^ *\\([0-9]+>\\)?\\(\\(?:[a-zA-Z]:\\)?[^:(\t\n]+\\)(\\([0-9]+\\)) ?\
"^ *\\([0-9]+>\\)?\\(\\(?:[a-zA-Z]:\\)?[^ :(\t\n][^:(\t\n]*\\)(\\([0-9]+\\)) ?\
: \\(?:see declaration\\|\\(?:warnin\\(g\\)\\|[a-z ]+\\) C[0-9]+:\\)"
2 3 nil (4))
@ -455,7 +455,7 @@ File = \\(.+\\), Line = \\([0-9]+\\)\\(?:, Column = \\([0-9]+\\)\\)?"
"^\\([^, \n\t]+\\), line \\([0-9]+\\), char \\([0-9]+\\)[:., (-]" 1 2 3)
(watcom
"^[ \t]*\\(\\(?:[a-zA-Z]:\\)?[^:(\t\n]+\\)(\\([0-9]+\\)): ?\
"^[ \t]*\\(\\(?:[a-zA-Z]:\\)?[^ :(\t\n][^:(\t\n]*\\)(\\([0-9]+\\)): ?\
\\(?:\\(Error! E[0-9]+\\)\\|\\(Warning! W[0-9]+\\)\\):"
1 2 nil (4))