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Restore header instead of signature in most syntax files

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Turning `header` patterns into `signature` patterns in all syntax files
was a mistake. The two are different things. In almost all syntax files
those patterns are things like shebangs or <?xml ... ?> or
<!DOCTYPE html5> i.e. things that:

1. can be (and should be) used for detecting the filetype when there is
   no `filename` match (and that is actually the purpose of those
   patterns, so it's a regression that it doesn't work anymore).

2. should only occur in the first line of the file, not in the first
   100 lines or so.

In other words, the old `header` semantics was exactly what was needed
for those filetypes, while the new `signature` semantics makes little
sense for them.

So replace `signature` back with `header` in most syntax files. Keep
`signature` only in C++ and Objective-C syntax files, for which it was
actually introduced.
This commit is contained in:
Dmytro Maluka
2024-03-23 21:44:27 +01:00
parent 5492d30953
commit b2a428f1cd
30 changed files with 30 additions and 30 deletions
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2
runtime/syntax/html4.yaml
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@@ -2,7 +2,7 @@ filetype: html4
detect:
filename: "\\.htm[l]?4$"
signature: "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN|http://www.w3.org/TR/html4/strict.dtd\">"
header: "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN|http://www.w3.org/TR/html4/strict.dtd\">"
rules:
- error: "<[^!].*?>"