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Diffstat (limited to 'doc/context/sources/general/manuals/luatex/luatex-nodes.tex')
| -rw-r--r-- | doc/context/sources/general/manuals/luatex/luatex-nodes.tex | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/doc/context/sources/general/manuals/luatex/luatex-nodes.tex b/doc/context/sources/general/manuals/luatex/luatex-nodes.tex index 0947bb58b..f238a58db 100644 --- a/doc/context/sources/general/manuals/luatex/luatex-nodes.tex +++ b/doc/context/sources/general/manuals/luatex/luatex-nodes.tex @@ -1560,26 +1560,29 @@ optional. The two returned nodes \type {h} and \type {t} are the head and tail (either one of these can be an inserted kern node, because special kernings with word boundaries are possible). -\subsubsection{\type {node.unprotect_glyphs}} +\subsubsection{\type {node.unprotect_glyphs} and \type {node.unprotect_glyph}} \startfunctioncall -node.unprotect_glyphs(<node> n) +node.unprotect_glyph(<node> n) +node.unprotect_glyphs(<node> n,[<node> n]) \stopfunctioncall Subtracts 256 from all glyph node subtypes. This and the next function are helpers to convert from \type {characters} to \type {glyphs} during node -processing. +processing. The second argument is option and indicates the end of a range. \subsubsection{\type {node.protect_glyphs} and \type {node.protect_glyph}} \startfunctioncall -node.protect_glyphs(<node> n) +node.protect_glyph(<node> n) +node.protect_glyphs(<node> n,[<node> n]) \stopfunctioncall Adds 256 to all glyph node subtypes in the node list starting at \type {n}, except that if the value is 1, it adds only 255. The special handling of 1 means that \type {characters} will become \type {glyphs} after subtraction of 256. A -single character can be marked by the singular call. +single character can be marked by the singular call. The second argument is +option and indicates the end of a range. \subsubsection{\type {node.last_node}} @@ -1752,6 +1755,15 @@ node.check_discretionaries(<node> head) The plural variant runs over all disc nodes in a list, the singular variant checks one node only (it also checks if the node is a disc node). +\subsubsection{\type {node.flatten_discretionaries}} + +This function will remove the discretionaries in the list and inject the replace +field when set. + +\startfunctioncall +<node> head, count = node.flatten_discretionaries(<node> n) +\stopfunctioncall + \subsubsection{\type {node.family_font}} When you pass it a proper family identifier the next helper will return the font |