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--
-- File `frenchb.lua' generated from frenchb.dtx [2016/04/18 v3.2b]
--
-- Copyright © 2014-2016 Daniel Flipo
-- <daniel (dot) flipo (at) free (dot) fr>
-- License LPPL: see frenchb.ldf.
--
local FB_punct_thin =
{[string.byte("!")] = true,
[string.byte("?")] = true,
[string.byte(";")] = true}
local FB_punct_thick =
{[string.byte(":")] = true}
local FB_punct_left =
{[string.byte("!")] = true,
[string.byte("?")] = true,
[string.byte(";")] = true,
[string.byte(":")] = true,
[0x14] = true,
[0xBB] = true}
local FB_punct_right =
{[0x13] = true,
[0xAB] = true}
local FB_punct_null =
{[string.byte("!")] = true,
[string.byte("?")] = true,
[string.byte("[")] = true,
[string.byte("(")] = true,
[0xA0] = true,
[0x202F] = true}
local FB_guil_null =
{[0xA0] = true,
[0x202F] = true}
local new_node = node.new
local copy_node = node.copy
local node_id = node.id
local HLIST = node_id("hlist")
local TEMP = node_id("temp")
local KERN = node_id("kern")
local GLUE = node_id("glue")
local GLYPH = node_id("glyph")
local PENALTY = node_id("penalty")
local nobreak = new_node(PENALTY)
nobreak.penalty = 10000
local insert_node_before = node.insert_before
local insert_node_after = node.insert_after
local remove_node = node.remove
local thin10 = tex.skip['FBthinskip']
local thinwd = thin10.width/65536/3.33
local thinst = thin10.stretch/65536/1.665
local thinsh = thin10.shrink/655.36/1.11
local coln10 = tex.skip['FBcolonskip']
local colnwd = coln10.width/65536/3.33
local colnst = coln10.stretch/65536/1.665
local colnsh = coln10.shrink/65536/1.11
local guil10 = tex.skip['FBguillskip']
local guilwd = guil10.width/65536/3.33
local guilst = guil10.stretch/65536/1.665
local guilsh = guil10.shrink/65536/1.11
local font_table = {}
local function new_glue_scaled (fid,width,stretch,shrink)
if fid > 0 then
local fp = font_table[fid]
if not fp then
local ft = font.getfont(fid)
if ft then
font_table[fid] = ft.parameters
fp = font_table[fid]
end
end
local gl = new_node(GLUE,0)
if fp then
gl.width = width * fp.space
gl.stretch = stretch * fp.space_stretch
gl.shrink = shrink * fp.space_shrink
return gl
else
return nil
end
else
return nil
end
end
local addDPspace = luatexbase.attributes['FB@addDPspace']
local addGUILspace = luatexbase.attributes['FB@addGUILspace']
local has_attribute = node.has_attribute
local function french_punctuation (head)
for item in node.traverse_id(GLYPH, head) do
local lang = item.lang
local char = item.char
local fid = item.font
local SIG = has_attribute(item, addGUILspace)
if lang == FR and FB_punct_left[char] and fid > 0 then
local prev = item.prev
local prev_id, prev_subtype, prev_char
if prev then
prev_id = prev.id
prev_subtype = prev.subtype
if prev_id == GLYPH then
prev_char = prev.char
end
end
local is_glue = prev_id == GLUE
local glue_wd
if is_glue then
glue_wd = prev.width
end
local realglue = is_glue and glue_wd > 1
if FB_punct_thin[char] or FB_punct_thick[char] then
local SBDP = has_attribute(item, addDPspace)
local auto = SBDP and SBDP > 0
if auto then
if (prev_char and FB_punct_null[prev_char]) or
(is_glue and glue_wd <= 1) or
(prev_id == HLIST and prev_subtype == 3) or
(prev_id == TEMP) then
auto = false
end
end
local fbglue
if FB_punct_thick[char] then
fbglue = new_glue_scaled(fid,colnwd,colnst,colnsh)
else
fbglue = new_glue_scaled(fid,thinwd,thinst,thinsh)
end
if (realglue or auto) and fbglue then
if realglue then
head = remove_node(head,prev,true)
end
insert_node_before(head, item, copy_node(nobreak))
insert_node_before(head, item, copy_node(fbglue))
end
elseif SIG and SIG > 0 then
local addgl = (prev_char and not FB_guil_null[prev_char]) or
(not prev_char and
prev_id ~= TEMP and
not (prev_id == HLIST and prev_subtype == 3)
)
if is_glue and glue_wd <= 1 then
addgl = false
end
local fbglue = new_glue_scaled(fid,guilwd,guilst,guilsh)
if addgl and fbglue then
if is_glue then
head = remove_node(head,prev,true)
end
insert_node_before(head, item, copy_node(nobreak))
insert_node_before(head, item, copy_node(fbglue))
end
end
end
if lang == FR and FB_punct_right[char] and fid > 0
and SIG and SIG > 0 then
local next = item.next
local next_id, next_subtype, next_char, nextnext, kern_wd
if next then
next_id = next.id
next_subtype = next.subtype
if next_id == GLYPH then
next_char = next.char
elseif next_id == KERN then
kern_wd = next.kern
if kern_wd == 0 then
nextnext = next.next
if nextnext then
next = nextnext
next_id = nextnext.id
next_subtype = nextnext.subtype
if next_id == GLYPH then
next_char = nextnext.char
end
end
end
end
end
local is_glue = next_id == GLUE
if is_glue then
glue_wd = next.width
end
local addgl = (next_char and not FB_guil_null[next_char]) or
(next and not next_char)
if is_glue and glue_wd == 0 then
addgl = false
end
local fid = item.font
local fbglue = new_glue_scaled(fid,guilwd,guilst,guilsh)
if addgl and fbglue then
if is_glue then
head = remove_node(head,next,true)
end
insert_node_after(head, item, copy_node(fbglue))
insert_node_after(head, item, copy_node(nobreak))
end
end
end
return head
end
return french_punctuation
-- End of File frenchb.lua.
|
