diff options
Diffstat (limited to 'Master/texmf-dist/tex/context/base/strc-pag.lua')
-rw-r--r-- | Master/texmf-dist/tex/context/base/strc-pag.lua | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/context/base/strc-pag.lua b/Master/texmf-dist/tex/context/base/strc-pag.lua new file mode 100644 index 00000000000..b95f0842ac6 --- /dev/null +++ b/Master/texmf-dist/tex/context/base/strc-pag.lua @@ -0,0 +1,207 @@ +if not modules then modules = { } end modules ['strc-pag'] = { + version = 1.001, + comment = "companion to strc-pag.tex", + author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright = "PRAGMA ADE / ConTeXt Development Team", + license = "see context related readme files" +} + +local texcount, format = tex.count, string.format + +local ctxcatcodes = tex.ctxcatcodes +local texsprint, texwrite = tex.sprint, tex.write + +structure.pages = structure.pages or { } + +local helpers = structure.helpers or { } +local sections = structure.sections or { } +local pages = structure.pages or { } +local processors = structure.processors or { } +local sets = structure.sets or { } + +local variables = interfaces.variables + +-- storage + +jobpages = jobpages or { } +jobpages.collected = jobpages.collected or { } +jobpages.tobesaved = jobpages.tobesaved or { } + +local collected, tobesaved = jobpages.collected, jobpages.tobesaved + +local function initializer() + collected, tobesaved = jobpages.collected, jobpages.tobesaved +end + +job.register('jobpages.collected', jobpages.tobesaved, initializer) + +local specification = { } + +function pages.save(userspec) + local realpage, userpage = texcount.realpageno, texcount.userpageno + local data = { + number = userpage, + specification = helpers.simplify(userspec or specification), + block = sections.currentblock(), + } + tobesaved[realpage] = data + if not collected[realpage] then + collected[realpage] = data + end +end + +function pages.pagenumber(localspec) + local deltaspec + if localspec then + for k,v in next, localspec do + if v ~= "" and v ~= specification[k] then + if not deltaspec then deltaspec = { } end + deltaspec[k] = v + end + end + end + if deltaspec then + return { realpage = texcount.realpageno, specification = deltaspec } + else + return { realpage = texcount.realpageno } + end +end + +-- + +local function convertnumber(str,n) + return format("\\convertnumber{%s}{%s}",str or "numbers",n) +end + +function pages.number(realdata,pagespecification) + local userpage, block = realdata.number, realdata.block or "" + local conversionset = (pagespecification and pagespecification.conversionset) or realdata.conversionset or "" + local conversion = (pagespecification and pagespecification.conversion ) or realdata.conversion or "" + local stopper = (pagespecification and pagespecification.stopper ) or realdata.stopper or "" + if conversion ~= "" then + texsprint(ctxcatcodes,format("\\convertnumber{%s}{%s}",conversion,number)) + else + if conversionset == "" then conversionset = "default" end + local theconversion = sets.get("structure:conversions",block,conversionset,index,"numbers") + processors.sprint(ctxcatcodes,theconversion,convertnumber,userpage) + end + if stopper ~= "" then + processors.sprint(ctxcatcodes,stopper) + end +end + +-- (pagespec.prefix == yes|unset) and (pages.prefix == yes) => prefix + +function pages.analyse(entry,pagespecification) + -- safeguard + if not entry then + return false, false, "no entry" + end + local references = entry.references + if not references then + return false, false, "no references" + end + local realpage = references.realpage + if not realpage then + return false, false, "no realpage" + end + local pagedata = collected[realpage] + if not pagedata then + return false, false, "no pagedata" + end + local section = references.section + if not section then + return pagedata, false, "no section" + end + local no = variables.no + -- local preferences + if pagespecification and pagespecification.prefix == no then + return pagedata, false, "current spec blocks prefix" + end + -- stored preferences + if entry.prefix == no then + return pagedata, false, "entry blocks prefix" + end + -- stored page state + pagespecification = pagedata.specification + if pagespecification and pagespecification.prefix == no then + return pagedata, false, "pagedata blocks prefix" + end + -- final verdict + return pagedata, jobsections.collected[references.section], "okay" +end + +function helpers.page(data,pagespec) + if data then + local pagedata = pages.analyse(data,pagespec) + if pagedata then + pages.number(pagedata,pagespec) + end + end +end + +function helpers.prefixpage(data,prefixspec,pagespec) + if data then + local pagedata, prefixdata, e = pages.analyse(data,pagespec) +--~ tex.write(e) + if pagedata then + if prefixdata then + sections.typesetnumber(prefixdata,"prefix",prefixspec or false,prefixdata or false,pagedata.specification or false) + end + pages.number(pagedata,pagespec) + end + end +end + +function helpers.prefixlastpage(data,prefixspec,pagespec) + if data then + local r = data.references + local ls, lr = r.section, r.realpage + r.section, r.realpage = r.lastsection or r.section, r.lastrealpage or r.realpage + helpers.prefixpage(data,prefixspec,pagespec) + r.section, r.realpage = ls, lr + end +end + +-- + +function helpers.analyse(entry,specification) + -- safeguard + if not entry then + return false, false, "no entry" + end + local no = variables.no + -- section data + local references = entry.references + if not references then + return entry, false, "no references" + end + local section = references.section + if not section then + return entry, false, "no section" + end + sectiondata = jobsections.collected[references.section] + if not sectiondata then + return entry, false, "no section data" + end + -- local preferences + if specification and specification.prefix == no then + return entry, false, "current spec blocks prefix" + end + -- stored preferences (not used) + local prefixdata = entry.prefixdata + if prefixdata and prefixdata.prefix == no then + return entry, false, "entry blocks prefix" + end + -- final verdict + return entry, sectiondata, "okay" +end + +function helpers.prefix(data,prefixspec) + if data then + local _, prefixdata = helpers.analyse(data,prefixspec) + if prefixdata then + sections.typesetnumber(prefixdata,"prefix",prefixspec or false,data.prefixdata or false,prefixdata or false) + end + end +end |