wiki.ohea.xyz/gollum
10
0
Fork 0
Code Issues Pull Requests 1 Packages Projects Releases Wiki Activity

[New] Support $ and $$ as formula delimiters.

Browse Source 
Although the standard formula delimiters for latex formulas is currently
`\(` and `\[`, the `$` syntax has an advantage from the point of view of
writing speed, very important if we intend to use *gollum* as a writing
tool.

The code includes support for escaping of the `$` symbol by using the
gollum syntax `'`.
This commit is contained in:
Felipe Lalanne
2012-06-11 12:06:54 +02:00
parent 59ac86cf6e
commit 294a8e9642
1 changed files with 14 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/gollum/markup.rb
+14 -1
View File
@@ -124,17 +124,30 @@ module Gollum
# #
# Returns the placeholder'd String data. # Returns the placeholder'd String data.
def extract_tex(data) def extract_tex(data)
# Random string to escape the `$` character (might be overkill)
hash = "@#{rand(36**5).to_s(36)}@"
data.gsub(/\\\[\s*(.*?)\s*\\\]/m) do data.gsub(/\\\[\s*(.*?)\s*\\\]/m) do
tag = CGI.escapeHTML($1) tag = CGI.escapeHTML($1)
id = Digest::SHA1.hexdigest(tag) id = Digest::SHA1.hexdigest(tag)
@texmap[id] = [:block, tag] @texmap[id] = [:block, tag]
id id
end.gsub(/'\$/, hash). # Replace `'$` by the hash generated earlier in order to escape it
gsub(/\$\$\s*(.*?)\s*\$\$/m) do
tag = CGI.escapeHTML($1)
id = Digest::SHA1.hexdigest(tag)
@texmap[id] = [:block, tag]
id
end.gsub(/\\\(\s*(.*?)\s*\\\)/m) do end.gsub(/\\\(\s*(.*?)\s*\\\)/m) do
tag = CGI.escapeHTML($1) tag = CGI.escapeHTML($1)
id = Digest::SHA1.hexdigest(tag) id = Digest::SHA1.hexdigest(tag)
@texmap[id] = [:inline, tag] @texmap[id] = [:inline, tag]
id id
end end.gsub(/\$\s*(.*?)\s*\$/m) do # match inline $<formula>$
tag = CGI.escapeHTML($1)
id = Digest::SHA1.hexdigest(tag)
@texmap[id] = [:inline, tag]
id
end.gsub(/#{hash}/, '$') # replace the hash back to `$`
end end
# Process all TeX from the texmap and replace the placeholders with the # Process all TeX from the texmap and replace the placeholders with the