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-rw-r--r--luaotfload-features.lua32
1 files changed, 28 insertions, 4 deletions
diff --git a/luaotfload-features.lua b/luaotfload-features.lua
index f91aee7..5e8216c 100644
--- a/luaotfload-features.lua
+++ b/luaotfload-features.lua
@@ -32,6 +32,7 @@ local old_feature_list = { }
local report = logs.names_report
+local stringfind = string.find
local stringlower = string.lower
local stringgsub = string.gsub
local stringis_empty = string.is_empty
@@ -215,10 +216,25 @@ local toboolean = function (s)
return s
end
+--- dirty test if a file: request is actually a path: lookup; don’t
+--- ask!
+local check_garbage = function (_,i, garbage)
+ if stringfind(garbage, "/") then
+ report("log", 0, "load", --- ffs use path!
+ "warning: path in file: lookups is deprecated; ")
+ report("log", 0, "load", "use bracket syntax instead!")
+ report("log", 0, "load",
+ "position: %d; full match: “%s”",
+ i, garbage)
+ return true
+ end
+ return false
+end
+
local lpegmatch = lpeg.match
local P, S, R = lpeg.P, lpeg.S, lpeg.R
-local C, Cc, Cf, Cg, Cs, Ct
- = lpeg.C, lpeg.Cc, lpeg.Cf, lpeg.Cg, lpeg.Cs, lpeg.Ct
+local C, Cc, Cf, Cg, Cmt, Cs, Ct
+ = lpeg.C, lpeg.Cc, lpeg.Cf, lpeg.Cg, lpeg.Cmt, lpeg.Cs, lpeg.Ct
--- terminals and low-level classes -----------------------------------
--- note we could use the predefined ones from lpeg.patterns
@@ -259,9 +275,17 @@ local modifier = slash * (other_modifier --> ignore
local modifier_list = Cg(Ct(modifier^0), "modifiers")
--- lookups -----------------------------------------------------------
-local fontname = C((1-S"/:(")^1) --- like luatex-fonts
+local fontname = C((1-S":(/")^1) --- like luatex-fonts
+local unsupported = Cmt((1-S":(")^1, check_garbage)
local prefixed = P"name:" * ws * Cg(fontname, "name")
- + P"file:" * ws * Cg(fontname, "file")
+--- initially we intended file: to emulate the behavior of
+--- luatex-fonts, i.e. no paths allowed. after all, we do have XeTeX
+--- emulation with the path lookup and it interferes with db lookups.
+--- turns out fontspec and other widely used packages rely on file:
+--- with paths already, so we’ll add a less strict rule here. anyways,
+--- we’ll emit a warning.
+ + P"file:" * ws * Cg(unsupported, "path")
+ + P"file:" * ws * Cg(fontname, "file")
local unprefixed = Cg(fontname, "anon")
local path_lookup = lbrk * Cg(C((1-rbrk)^1), "path") * rbrk