diff options
Diffstat (limited to 'tex/context/base/strc-rsc.lua')
| -rw-r--r-- | tex/context/base/strc-rsc.lua | 308 |
1 files changed, 154 insertions, 154 deletions
diff --git a/tex/context/base/strc-rsc.lua b/tex/context/base/strc-rsc.lua index a90f577e3..34a532928 100644 --- a/tex/context/base/strc-rsc.lua +++ b/tex/context/base/strc-rsc.lua @@ -1,154 +1,154 @@ -if not modules then modules = { } end modules ['strc-rsc'] = { - version = 1.001, - comment = "companion to strc-ref.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - --- The scanner is in a separate module so that we can test without too --- many dependencies. - --- The scanner accepts nested outer, but we don't care too much, maybe --- some day we will have both but currently the innermost wins. - -local lpegmatch, lpegP, lpegS, lpegCs, lpegCt, lpegCf, lpegCc, lpegC, lpegCg = lpeg.match, lpeg.P, lpeg.S, lpeg.Cs, lpeg.Ct, lpeg.Cf, lpeg.Cc, lpeg.C, lpeg.Cg -local find = string.find - -local spaces = lpegP(" ")^0 -local lparent = lpegP("(") -local rparent = lpegP(")") -local lbrace = lpegP("{") -local rbrace = lpegP("}") -local tcolon = lpegP(":::") -- component or outer -local dcolon = lpegP("::") -- outer -local scolon = lpegP(":") -- prefix -local backslash = lpegP("\\") - - lparent = spaces * lparent * spaces - rparent = spaces * rparent * spaces - lbrace = spaces * lbrace * spaces - rbrace = spaces * rbrace * spaces - tcolon = spaces * tcolon * spaces - dcolon = spaces * dcolon * spaces - -local endofall = spaces * lpegP(-1) - -local o_token = 1 - rparent - rbrace - lparent - lbrace -- can be made more efficient -local a_token = 1 - rbrace -local s_token = 1 - lparent - lbrace -local i_token = 1 - lparent - lbrace - endofall -local f_token = 1 - lparent - lbrace - dcolon -local c_token = 1 - lparent - lbrace - tcolon - -local hastexcode = lpegCg(lpegCc("has_tex") * lpegCc(true)) -- cannot be made to work -local component = lpegCg(lpegCc("component") * lpegCs(c_token^1)) -local outer = lpegCg(lpegCc("outer") * lpegCs(f_token^1)) -local operation = lpegCg(lpegCc("operation") * lpegCs(o_token^1)) -local arguments = lpegCg(lpegCc("arguments") * lpegCs(a_token^0)) -local special = lpegCg(lpegCc("special") * lpegCs(s_token^1)) -local inner = lpegCg(lpegCc("inner") * lpegCs(i_token^1)) - - arguments = (lbrace * arguments * rbrace)^-1 - component = component * tcolon - outer = outer * dcolon - operation = outer^-1 * operation -- special case: page(file::1) and file::page(1) - inner = inner * arguments - special = special * lparent * (operation * arguments)^-1 * rparent - -local referencesplitter = spaces * lpegCf (lpegCt("") * (component + outer)^-1 * (special + inner)^-1 * endofall, rawset) -local prefixsplitter = lpegCs(lpegP((1-scolon)^1 * scolon)) * #-scolon * lpegCs(lpegP(1)^1) -local componentsplitter = lpegCs(lpegP((1-scolon)^1)) * scolon * #-scolon * lpegCs(lpegP(1)^1) - -prefixsplitter = componentsplitter - -local function splitreference(str) - if str and str ~= "" then - local t = lpegmatch(referencesplitter,str) - if t then - local a = t.arguments - if a and find(a,"\\") then - t.has_tex = true - else - local o = t.arguments - if o and find(o,"\\") then - t.has_tex = true - end - end - return t - end - end -end - -local function splitprefix(str) - return lpegmatch(prefixsplitter,str) -end - -local function splitcomponent(str) - return lpegmatch(componentsplitter,str) -end - --- register in the right namespace - -structures = structures or { } -structures.references = structures.references or { } -local references = structures.references - -references.referencesplitter = referencesplitter -references.splitreference = splitreference -references.prefixsplitter = prefixsplitter -references.splitprefix = splitprefix -references.componentsplitter = componentsplitter -references.splitcomponent = splitcomponent - --- test code: - --- inspect(splitreference([[component:::inner]])) --- inspect(splitprefix([[component:::inner]])) --- inspect(splitprefix([[component:inner]])) - --- inspect(splitreference([[ ]])) --- inspect(splitreference([[ inner ]])) --- inspect(splitreference([[ special ( operation { argument, argument } ) ]])) --- inspect(splitreference([[ special ( operation { argument } ) ]])) --- inspect(splitreference([[ special ( operation { argument, \argument } ) ]])) --- inspect(splitreference([[ special ( operation { \argument } ) ]])) --- inspect(splitreference([[ special ( operation ) ]])) --- inspect(splitreference([[ special ( \operation ) ]])) --- inspect(splitreference([[ special ( o\peration ) ]])) --- inspect(splitreference([[ special ( ) ]])) --- inspect(splitreference([[ inner { argument } ]])) --- inspect(splitreference([[ inner { \argument } ]])) --- inspect(splitreference([[ inner { ar\gument } ]])) --- inspect(splitreference([[inner{a\rgument}]])) --- inspect(splitreference([[ inner { argument, argument } ]])) --- inspect(splitreference([[ inner { argument, \argument } ]])) -- fails: bug in lpeg? --- inspect(splitreference([[ inner { \argument, \argument } ]])) --- inspect(splitreference([[ outer :: ]])) --- inspect(splitreference([[ outer :: inner]])) --- inspect(splitreference([[ outer :: special (operation { argument,argument } ) ]])) --- inspect(splitreference([[ outer :: special (operation { } )]])) --- inspect(splitreference([[ outer :: special ( operation { argument, \argument } ) ]])) --- inspect(splitreference([[ outer :: special ( operation ) ]])) --- inspect(splitreference([[ outer :: special ( \operation ) ]])) --- inspect(splitreference([[ outer :: special ( ) ]])) --- inspect(splitreference([[ outer :: inner { argument } ]])) --- inspect(splitreference([[ special ( outer :: operation ) ]])) - --- inspect(splitreference([[]])) --- inspect(splitreference([[inner]])) --- inspect(splitreference([[special(operation{argument,argument})]])) --- inspect(splitreference([[special(operation)]])) --- inspect(splitreference([[special(\operation)]])) --- inspect(splitreference([[special()]])) --- inspect(splitreference([[inner{argument}]])) --- inspect(splitreference([[inner{\argument}]])) --- inspect(splitreference([[outer::]])) --- inspect(splitreference([[outer::inner]])) --- inspect(splitreference([[outer::special(operation{argument,argument})]])) --- inspect(splitreference([[outer::special(operation{argument,\argument})]])) --- inspect(splitreference([[outer::special(operation)]])) --- inspect(splitreference([[outer::special(\operation)]])) --- inspect(splitreference([[outer::special()]])) --- inspect(splitreference([[outer::inner{argument}]])) --- inspect(splitreference([[special(outer::operation)]])) +if not modules then modules = { } end modules ['strc-rsc'] = {
+ version = 1.001,
+ comment = "companion to strc-ref.mkiv",
+ author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright = "PRAGMA ADE / ConTeXt Development Team",
+ license = "see context related readme files"
+}
+
+-- The scanner is in a separate module so that we can test without too
+-- many dependencies.
+
+-- The scanner accepts nested outer, but we don't care too much, maybe
+-- some day we will have both but currently the innermost wins.
+
+local lpegmatch, lpegP, lpegS, lpegCs, lpegCt, lpegCf, lpegCc, lpegC, lpegCg = lpeg.match, lpeg.P, lpeg.S, lpeg.Cs, lpeg.Ct, lpeg.Cf, lpeg.Cc, lpeg.C, lpeg.Cg
+local find = string.find
+
+local spaces = lpegP(" ")^0
+local lparent = lpegP("(")
+local rparent = lpegP(")")
+local lbrace = lpegP("{")
+local rbrace = lpegP("}")
+local tcolon = lpegP(":::") -- component or outer
+local dcolon = lpegP("::") -- outer
+local scolon = lpegP(":") -- prefix
+local backslash = lpegP("\\")
+
+ lparent = spaces * lparent * spaces
+ rparent = spaces * rparent * spaces
+ lbrace = spaces * lbrace * spaces
+ rbrace = spaces * rbrace * spaces
+ tcolon = spaces * tcolon * spaces
+ dcolon = spaces * dcolon * spaces
+
+local endofall = spaces * lpegP(-1)
+
+local o_token = 1 - rparent - rbrace - lparent - lbrace -- can be made more efficient
+local a_token = 1 - rbrace
+local s_token = 1 - lparent - lbrace
+local i_token = 1 - lparent - lbrace - endofall
+local f_token = 1 - lparent - lbrace - dcolon
+local c_token = 1 - lparent - lbrace - tcolon
+
+local hastexcode = lpegCg(lpegCc("has_tex") * lpegCc(true)) -- cannot be made to work
+local component = lpegCg(lpegCc("component") * lpegCs(c_token^1))
+local outer = lpegCg(lpegCc("outer") * lpegCs(f_token^1))
+local operation = lpegCg(lpegCc("operation") * lpegCs(o_token^1))
+local arguments = lpegCg(lpegCc("arguments") * lpegCs(a_token^0))
+local special = lpegCg(lpegCc("special") * lpegCs(s_token^1))
+local inner = lpegCg(lpegCc("inner") * lpegCs(i_token^1))
+
+ arguments = (lbrace * arguments * rbrace)^-1
+ component = component * tcolon
+ outer = outer * dcolon
+ operation = outer^-1 * operation -- special case: page(file::1) and file::page(1)
+ inner = inner * arguments
+ special = special * lparent * (operation * arguments)^-1 * rparent
+
+local referencesplitter = spaces * lpegCf (lpegCt("") * (component + outer)^-1 * (special + inner)^-1 * endofall, rawset)
+local prefixsplitter = lpegCs(lpegP((1-scolon)^1 * scolon)) * #-scolon * lpegCs(lpegP(1)^1)
+local componentsplitter = lpegCs(lpegP((1-scolon)^1)) * scolon * #-scolon * lpegCs(lpegP(1)^1)
+
+prefixsplitter = componentsplitter
+
+local function splitreference(str)
+ if str and str ~= "" then
+ local t = lpegmatch(referencesplitter,str)
+ if t then
+ local a = t.arguments
+ if a and find(a,"\\") then
+ t.has_tex = true
+ else
+ local o = t.arguments
+ if o and find(o,"\\") then
+ t.has_tex = true
+ end
+ end
+ return t
+ end
+ end
+end
+
+local function splitprefix(str)
+ return lpegmatch(prefixsplitter,str)
+end
+
+local function splitcomponent(str)
+ return lpegmatch(componentsplitter,str)
+end
+
+-- register in the right namespace
+
+structures = structures or { }
+structures.references = structures.references or { }
+local references = structures.references
+
+references.referencesplitter = referencesplitter
+references.splitreference = splitreference
+references.prefixsplitter = prefixsplitter
+references.splitprefix = splitprefix
+references.componentsplitter = componentsplitter
+references.splitcomponent = splitcomponent
+
+-- test code:
+
+-- inspect(splitreference([[component:::inner]]))
+-- inspect(splitprefix([[component:::inner]]))
+-- inspect(splitprefix([[component:inner]]))
+
+-- inspect(splitreference([[ ]]))
+-- inspect(splitreference([[ inner ]]))
+-- inspect(splitreference([[ special ( operation { argument, argument } ) ]]))
+-- inspect(splitreference([[ special ( operation { argument } ) ]]))
+-- inspect(splitreference([[ special ( operation { argument, \argument } ) ]]))
+-- inspect(splitreference([[ special ( operation { \argument } ) ]]))
+-- inspect(splitreference([[ special ( operation ) ]]))
+-- inspect(splitreference([[ special ( \operation ) ]]))
+-- inspect(splitreference([[ special ( o\peration ) ]]))
+-- inspect(splitreference([[ special ( ) ]]))
+-- inspect(splitreference([[ inner { argument } ]]))
+-- inspect(splitreference([[ inner { \argument } ]]))
+-- inspect(splitreference([[ inner { ar\gument } ]]))
+-- inspect(splitreference([[inner{a\rgument}]]))
+-- inspect(splitreference([[ inner { argument, argument } ]]))
+-- inspect(splitreference([[ inner { argument, \argument } ]])) -- fails: bug in lpeg?
+-- inspect(splitreference([[ inner { \argument, \argument } ]]))
+-- inspect(splitreference([[ outer :: ]]))
+-- inspect(splitreference([[ outer :: inner]]))
+-- inspect(splitreference([[ outer :: special (operation { argument,argument } ) ]]))
+-- inspect(splitreference([[ outer :: special (operation { } )]]))
+-- inspect(splitreference([[ outer :: special ( operation { argument, \argument } ) ]]))
+-- inspect(splitreference([[ outer :: special ( operation ) ]]))
+-- inspect(splitreference([[ outer :: special ( \operation ) ]]))
+-- inspect(splitreference([[ outer :: special ( ) ]]))
+-- inspect(splitreference([[ outer :: inner { argument } ]]))
+-- inspect(splitreference([[ special ( outer :: operation ) ]]))
+
+-- inspect(splitreference([[]]))
+-- inspect(splitreference([[inner]]))
+-- inspect(splitreference([[special(operation{argument,argument})]]))
+-- inspect(splitreference([[special(operation)]]))
+-- inspect(splitreference([[special(\operation)]]))
+-- inspect(splitreference([[special()]]))
+-- inspect(splitreference([[inner{argument}]]))
+-- inspect(splitreference([[inner{\argument}]]))
+-- inspect(splitreference([[outer::]]))
+-- inspect(splitreference([[outer::inner]]))
+-- inspect(splitreference([[outer::special(operation{argument,argument})]]))
+-- inspect(splitreference([[outer::special(operation{argument,\argument})]]))
+-- inspect(splitreference([[outer::special(operation)]]))
+-- inspect(splitreference([[outer::special(\operation)]]))
+-- inspect(splitreference([[outer::special()]]))
+-- inspect(splitreference([[outer::inner{argument}]]))
+-- inspect(splitreference([[special(outer::operation)]]))
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