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Support regular expressions in Terraform lexer #1490

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merged 2 commits into from
Apr 9, 2020
Merged

Support regular expressions in Terraform lexer #1490

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28794fc
Add example of regular expression to visual sample
pyrmont Apr 8, 2020
297365e
Add rules for regular expressions
pyrmont Apr 8, 2020
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15 changes: 15 additions & 0 deletions lib/rouge/lexers/terraform.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -81,9 +81,24 @@ def self.builtins
mixin :expression
end

state :regexps do
rule %r/"\// do
token Str::Delimiter
goto :regexp_inner
end
end

state :regexp_inner do
rule %r/[^"\/\\]+/, Str::Regex
rule %r/\\./, Str::Regex
rule %r/\/"/, Str::Delimiter, :pop!
rule %r/["\/]/, Str::Regex
end

id = /[$a-z_\-][a-z0-9_\-]*/io

state :expression do
mixin :regexps
mixin :primitives
rule %r/\s+/, Text

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5 changes: 5 additions & 0 deletions spec/visual/samples/terraform
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Expand Up @@ -79,3 +79,8 @@ resource "aws_subnet" "main" {
vpc_id = aws_vpc.main.id
fqns = aws_route53_record.cert_validation[*].fqdn
}

## Object with regular expression
resource "aws_cloudfront_distribution" "s3_distribution" {
aliases = ["www.${replace(var.domain_name, "/\\.$/", "")}"]
}