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path: root/tex/context/base/mkiv/font-ots.lua
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Diffstat (limited to 'tex/context/base/mkiv/font-ots.lua')
-rw-r--r--tex/context/base/mkiv/font-ots.lua17
1 files changed, 11 insertions, 6 deletions
diff --git a/tex/context/base/mkiv/font-ots.lua b/tex/context/base/mkiv/font-ots.lua
index 3b6ea6a72..b612e85e7 100644
--- a/tex/context/base/mkiv/font-ots.lua
+++ b/tex/context/base/mkiv/font-ots.lua
@@ -2056,6 +2056,7 @@ local function chaindisk(head,start,dataset,sequence,rlmode,skiphash,ck)
local sweepnode = sweepnode
local sweeptype = sweeptype
local sweepoverflow = false
+ local checkdisc = getprev(head)
local keepdisc = not sweepnode
local lookaheaddisc = nil
local backtrackdisc = nil
@@ -2089,6 +2090,7 @@ local function chaindisk(head,start,dataset,sequence,rlmode,skiphash,ck)
sweepnode = current
current = getnext(current)
else
+ -- we can use an iterator
while replace and i <= l do
if getid(replace) == glyph_code then
i = i + 1
@@ -2189,7 +2191,7 @@ local function chaindisk(head,start,dataset,sequence,rlmode,skiphash,ck)
local current = prev
local i = f
local t = sweeptype == "pre" or sweeptype == "replace"
- if not current and t and current == checkdisk then
+ if not current and t and current == checkdisc then
current = getprev(sweepnode)
end
while current and i > 1 do -- missing getprev added / moved outside
@@ -2218,7 +2220,7 @@ local function chaindisk(head,start,dataset,sequence,rlmode,skiphash,ck)
end
end
current = getprev(current)
- if t and current == checkdisk then
+ if t and current == checkdisc then
current = getprev(sweepnode)
end
end
@@ -2443,6 +2445,10 @@ local function handle_contextchain(head,start,dataset,sequence,contexts,rlmode,s
local current = start
local last = start
+ if s == 1 then
+ goto next
+ end
+
-- current match
if l > f then
@@ -2512,10 +2518,9 @@ local function handle_contextchain(head,start,dataset,sequence,contexts,rlmode,s
break
end
end
- -- commented, for Kai to check
- -- if n <= l then
- -- notmatchpre[last] = true
- -- end
+ if n <= l then
+ notmatchpre[last] = true
+ end
else
notmatchpre[last] = true
end