diff options
Diffstat (limited to 'tex/context/base/typo-spa.lua')
| -rw-r--r-- | tex/context/base/typo-spa.lua | 86 |
1 files changed, 61 insertions, 25 deletions
diff --git a/tex/context/base/typo-spa.lua b/tex/context/base/typo-spa.lua index c3f50fe98..519ba3f34 100644 --- a/tex/context/base/typo-spa.lua +++ b/tex/context/base/typo-spa.lua @@ -15,10 +15,7 @@ local report_spacing = logs.reporter("typesetting","spacing") local nodes, fonts, node = nodes, fonts, node -local insert_node_before = node.insert_before -local insert_node_after = node.insert_after -local remove_node = nodes.remove -local end_of_math = node.end_of_math +local tasks = nodes.tasks local fonthashes = fonts.hashes local fontdata = fonthashes.identifiers @@ -29,6 +26,27 @@ local unsetvalue = attributes.unsetvalue local v_reset = interfaces.variables.reset +local nuts = nodes.nuts +local tonut = nuts.tonut +local tonode = nuts.tonode + +local getnext = nuts.getnext +local getprev = nuts.getprev +local getchar = nuts.getchar +local getid = nuts.getid +local getfont = nuts.getfont +local getattr = nuts.getattr +local setattr = nuts.setattr + +local insert_node_before = nuts.insert_before +local insert_node_after = nuts.insert_after +local remove_node = nuts.remove +local end_of_math = nuts.end_of_math + +local nodepool = nuts.pool +local new_penalty = nodepool.penalty +local new_glue = nodepool.glue + local nodecodes = nodes.nodecodes local glyph_code = nodecodes.glyph local math_code = nodecodes.math @@ -36,12 +54,6 @@ local math_code = nodecodes.math local somespace = nodes.somespace local somepenalty = nodes.somepenalty -local nodepool = nodes.pool -local tasks = nodes.tasks - -local new_penalty = nodepool.penalty -local new_glue = nodepool.glue - typesetters = typesetters or { } local typesetters = typesetters @@ -52,7 +64,6 @@ spacings.mapping = spacings.mapping or { } spacings.numbers = spacings.numbers or { } local a_spacings = attributes.private("spacing") -spacings.attribute = a_spacings storage.register("typesetters/spacings/mapping", spacings.mapping, "typesetters.spacings.mapping") @@ -67,29 +78,30 @@ end -- todo cache lastattr function spacings.handler(head) + head = tonut(head) local done = false local start = head -- head is always begin of par (whatsit), so we have at least two prev nodes -- penalty followed by glue while start do - local id = start.id + local id = getid(start) if id == glyph_code then - local attr = start[a_spacings] + local attr = getattr(start,a_spacings) if attr and attr > 0 then local data = mapping[attr] if data then - local char = start.char + local char = getchar(start) local map = data.characters[char] - start[a_spacings] = unsetvalue -- needed? + setattr(start,a_spacings,unsetvalue) -- needed? if map then local left = map.left local right = map.right local alternative = map.alternative - local quad = quaddata[start.font] - local prev = start.prev + local quad = quaddata[getfont(start)] + local prev = getprev(start) if left and left ~= 0 and prev then local ok = false - local prevprev = prev.prev + local prevprev = getprev(prev) if alternative == 1 then local somespace = somespace(prev,true) if somespace then @@ -120,10 +132,10 @@ function spacings.handler(head) done = true end end - local next = start.next + local next = getnext(start) if right and right ~= 0 and next then local ok = false - local nextnext = next.next + local nextnext = getnext(next) if alternative == 1 then local somepenalty = somepenalty(next,10000) if somepenalty then @@ -164,10 +176,10 @@ function spacings.handler(head) start = end_of_math(start) -- weird, can return nil .. no math end? end if start then - start = start.next + start = getnext(start) end end - return head, done + return tonode(head), done end local enabled = false @@ -218,6 +230,30 @@ end -- interface -commands.definecharacterspacing = spacings.define -commands.setupcharacterspacing = spacings.setup -commands.setcharacterspacing = spacings.set +local implement = interfaces.implement + +implement { + name = "definecharacterspacing", + actions = spacings.define, + arguments = "string" +} + +implement { + name = "setupcharacterspacing", + actions = spacings.setup, + arguments = { + "string", + "integer", + { + { "left", "number" }, + { "right", "number" }, + { "alternative", "integer" }, + } + } +} + +implement { + name = "setcharacterspacing", + actions = spacings.set, + arguments = "string" +} |