diff options
Diffstat (limited to 'src/Text/Pandoc/Templates.hs')
| -rw-r--r-- | src/Text/Pandoc/Templates.hs | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/Text/Pandoc/Templates.hs b/src/Text/Pandoc/Templates.hs index 69cd5c554..b40cf7fdb 100644 --- a/src/Text/Pandoc/Templates.hs +++ b/src/Text/Pandoc/Templates.hs @@ -37,10 +37,16 @@ by dollar signs. To include a literal @$@ in your template, use @$$@. Variable names must begin with a letter and can contain letters, numbers, @_@, and @-@. +The value of a variable will be indented to the same level as the +variable. + A conditional begins with @$if(variable_name)$@ and ends with @$endif$@. It may optionally contain an @$else$@ section. The if section is used if @variable_name@ has a non-null value, otherwise the else section is used. + +Conditional keywords should not be indented, or unexpected spacing +problems may occur. -} module Text.Pandoc.Templates (renderTemplate, getDefaultTemplate) where @@ -98,13 +104,13 @@ escapedDollar = try $ string "$$" >> return "$" conditional :: GenParser Char TemplateState String conditional = try $ do + let skipEndline = try $ skipMany (oneOf " \t") >> newline TemplateState pos vars <- getState string "$if(" id' <- ident string ")$" -- if newline after the "if", then a newline after "endif" will be swallowed - multiline <- option False $ try $ - newline >> count pos (char ' ') >> return True + multiline <- option False $ try $ skipEndline >> return True let conditionSatisfied = case lookup id' vars of Nothing -> False Just "" -> False @@ -115,10 +121,10 @@ conditional = try $ do parseTemplate -- skip if part, then reset position setState $ TemplateState pos vars option "" $ do try (string "$else$") - optional newline + when multiline $ optional skipEndline liftM concat parseTemplate string "$endif$" - when multiline $ optional $ newline + when multiline $ optional skipEndline return contents ident :: GenParser Char TemplateState String |