diff options
Diffstat (limited to 'tex/context/base/cldf-prs.lua')
| -rw-r--r-- | tex/context/base/cldf-prs.lua | 94 |
1 files changed, 55 insertions, 39 deletions
diff --git a/tex/context/base/cldf-prs.lua b/tex/context/base/cldf-prs.lua index 160d30b19..3c3836a3e 100644 --- a/tex/context/base/cldf-prs.lua +++ b/tex/context/base/cldf-prs.lua @@ -12,45 +12,61 @@ local lpegmatch, patterns = lpeg.match, lpeg.patterns local P, R, V, Cc, Cs = lpeg.P, lpeg.R, lpeg.V, lpeg.Cc, lpeg.Cs local format = string.format -local cpatterns = patterns.context or { } -patterns.context = cpatterns - -local backslash = P("\\") -local csname = backslash * P(1) * (1-backslash)^0 -local sign = P("+") / "\\textplus " - + P("-") / "\\textminus " -local leftbrace = P("{") -local rightbrace = P("}") -local nested = P { leftbrace * (V(1) + (1-rightbrace))^0 * rightbrace } -local subscript = P("_") -local superscript = P("^") -local utf8char = patterns.utf8char -local cardinal = patterns.cardinal - --- local scripts = P { "start", --- start = V("csname") + V("lowfirst") + V("highfirst"), --- csname = csname, --- content = Cs(V("csname") + nested + sign^-1 * (cardinal + utf8char)), --- lowfirst = subscript * ( Cc("\\lohi{%s}{%s}") * V("content") * superscript + Cc("\\low{%s}" ) ) * V("content") / format, --- highfirst = superscript * ( Cc("\\hilo{%s}{%s}") * V("content") * subscript + Cc("\\high{%s}") ) * V("content") / format, --- } - -local scripts = P { "start", - start = V("csname") + V("lowfirst") + V("highfirst"), - csname = csname, - content = Cs(V("csname") + nested + sign^-1 * (cardinal + utf8char)), - lowfirst = (subscript /"") * ( Cc("\\lohi{") * V("content") * Cc("}{") * (superscript/"") + Cc("\\low{" ) ) * V("content") * Cc("}"), - highfirst = (superscript/"") * ( Cc("\\hilo{") * V("content") * Cc("}{") * (subscript /"") + Cc("\\high{") ) * V("content") * Cc("}"), - } - -local scripted = Cs((csname + scripts + utf8char)^0) - -cpatterns.scripts = scripts -cpatterns.csname = csname -cpatterns.scripted = scripted -cpatterns.nested = nested - --- inspect(scripted) +local cpatterns = patterns.context or { } +patterns.context = cpatterns + +local utf8character = patterns.utf8character +local cardinal = patterns.cardinal + +local leftbrace = P("{") +local rightbrace = P("}") +local backslash = P("\\") +local csname = backslash * P(1) * (1-backslash-leftbrace)^0 * P(" ")^0 +local sign = P("+") / "\\textplus " + + P("-") / "\\textminus " +local nested = P { leftbrace * (V(1) + (1-rightbrace))^0 * rightbrace } +local subscript = P("_") +local superscript = P("^") + +-- local scripts = P { "start", +-- start = V("csname") + V("lowfirst") + V("highfirst"), +-- csname = csname, +-- content = Cs(V("csname") + nested + sign^-1 * (cardinal + utf8character)), +-- lowfirst = subscript * ( Cc("\\lohi{%s}{%s}") * V("content") * superscript + Cc("\\low{%s}" ) ) * V("content") / format, +-- highfirst = superscript * ( Cc("\\hilo{%s}{%s}") * V("content") * subscript + Cc("\\high{%s}") ) * V("content") / format, +-- } + +-- local scripts = P { "start", +-- start = (V("csname") + V("lowfirst") + V("highfirst"))^1, +-- csname = csname, +-- content = Cs(V("csname") + nested + sign^-1 * (cardinal + utf8character)), +-- lowfirst = (subscript /"") * ( Cc("\\lohi{") * V("content") * Cc("}{") * (superscript/"") + Cc("\\low{" ) ) * V("content") * Cc("}"), +-- highfirst = (superscript/"") * ( Cc("\\hilo{") * V("content") * Cc("}{") * (subscript /"") + Cc("\\high{") ) * V("content") * Cc("}"), +-- } + +local scripted = Cs { "start", + start = (V("csname") + V("nested") + V("lowfirst") + V("highfirst") + V("character"))^1, + rest = V("csname") + V("nested") + V("lowfirst") + V("highfirst"), + csname = csname, + character = utf8character, + -- nested = leftbrace * (V("rest") + (V("character")-rightbrace))^0 * rightbrace, + nested = leftbrace * (V("start") -rightbrace)^0 * rightbrace, + -- content = Cs(V("nested") + sign^-1 * (cardinal + V("character"))), + content = V("nested") + sign^-1 * (cardinal + V("character")) + sign, + lowfirst = (subscript /"") * ( Cc("\\lohi{") * V("content") * Cc("}{") * (superscript/"") + Cc("\\low{" ) ) * V("content") * Cc("}"), + highfirst = (superscript/"") * ( Cc("\\hilo{") * V("content") * Cc("}{") * (subscript /"") + Cc("\\high{") ) * V("content") * Cc("}"), + } + +cpatterns.csname = csname +cpatterns.scripted = scripted +cpatterns.nested = nested + -- print(lpegmatch(scripted,"10^-3_x")) +-- print(lpegmatch(scripted,"\\L {C_5}")) +-- print(lpegmatch(scripted,"\\SL{}")) +-- print(lpegmatch(scripted,"\\SL{C_5}")) +-- print(lpegmatch(scripted,"\\SL{C_5}")) +-- print(lpegmatch(scripted,"{C_5}")) +-- print(lpegmatch(scripted,"{\\C_5}")) -- print(lpegmatch(scripted,"10^-a")) |