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-rw-r--r--haddock-api/src/Haddock/Backends/Xhtml/Utils.hs8
1 files changed, 8 insertions, 0 deletions
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Utils.hs b/haddock-api/src/Haddock/Backends/Xhtml/Utils.hs
index 36ecf863..5166549a 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Utils.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Utils.hs
@@ -41,11 +41,19 @@ import Module ( Module, ModuleName, moduleName, moduleNameString )
import Name ( getOccString, nameOccName, isValOcc )
+-- | Replace placeholder string elements with provided values.
+--
+-- Used to generate URL for customized external paths, usually provided with
+-- @--source-module@, @--source-entity@ and related command-line arguments.
+--
+-- >>> spliceURL Nothing mmod mname Nothing "output/%{MODULE}.hs#%{NAME}"
+-- "output/Foo.hs#foo"
spliceURL :: Maybe FilePath -> Maybe Module -> Maybe GHC.Name ->
Maybe SrcSpan -> String -> String
spliceURL mfile mmod = spliceURL' mfile (moduleName <$> mmod)
+-- | Same as 'spliceURL' but takes 'ModuleName' instead of 'Module'.
spliceURL' :: Maybe FilePath -> Maybe ModuleName -> Maybe GHC.Name ->
Maybe SrcSpan -> String -> String
spliceURL' maybe_file maybe_mod maybe_name maybe_loc = run