commit d70ca94988187d9a642c3965015cc8512b20edd9
parent 91530fefc45b68d6c0d5866cc2eb7f346900af8b
Author: David Eisinger <[email protected]>
Date: Tue, 31 Oct 2023 11:24:50 -0400
comment + refactor renumber
Diffstat:
1 file changed, 19 insertions(+), 12 deletions(-)
diff --git a/bin/renumber b/bin/renumber
@@ -6,33 +6,40 @@ files = Array(ARGV.shift || Dir.glob("./**/*.md"))
files.each do |file|
content = File.read(file)
+ # First, scan for all references ([#]: at beginning of line)
+ # and look for duplicates
refs = content.scan(/^\[\d+\]:/)
+ dups = refs.combination(2).filter_map { |i, j| i if i == j }
- unless refs == refs.uniq
- warn "Error in #{file}: duplicate refs detected"
+ # If duplicate refs detected, this won't work, so bail out
+ if dups.any?
+ warn "Duplicate refs detected in #{file} (#{dups * ", "})"
exit 1
end
idx = 0
code_block = false
- refs = {}
+ cache = {}
- updated = content.gsub(/\[\d+\]|```|`/) do |token|
+ # Find all numbered links (in text + references) + code delimeters
+ # (for fenced code blocks, "`" suffices because "```" is an odd number)
+ updated = content.gsub(/\[\d+\]|`/) do |token|
case token
- when "```", "`"
+ when "`"
+ # We don't want to do substitution inside code blocks
+ # (where `[#]` sometimes occurs) but we do want to toggle
+ # whether or not we're in a code block
code_block = !code_block
token
else
- if code_block
- token
- else
- refs[token] ||= "[$$#{idx += 1}]"
- end
+ # If we're in a code block, just return the token
+ # Otherwise, check if the reference has already been assigned
+ # - If so, return the cached value
+ # - If not, bump the index, cache the value, and return it
+ code_block ? token : cache[token] ||= "[#{idx += 1}]"
end
end
- updated.gsub!("$$", "")
-
if fix
File.write(file, updated)
elsif content != updated
