diff options
Diffstat (limited to 'scripts/context/lua/mtxrun.lua')
| -rw-r--r-- | scripts/context/lua/mtxrun.lua | 80 |
1 files changed, 42 insertions, 38 deletions
diff --git a/scripts/context/lua/mtxrun.lua b/scripts/context/lua/mtxrun.lua index 701378c09..d45e7e5fe 100644 --- a/scripts/context/lua/mtxrun.lua +++ b/scripts/context/lua/mtxrun.lua @@ -155,35 +155,6 @@ function string.topattern(str,lowercase,strict) end end - --- The following functions might end up in another namespace. - -function string.tabtospace(str,tab) - -- we don't handle embedded newlines - while true do - local s = find(str,"\t") - if s then - if not tab then tab = 7 end -- only when found - local d = tab-(s-1) % tab - if d > 0 then - str = gsub(str,"\t",rep(" ",d),1) - else - str = gsub(str,"\t","",1) - end - else - break - end - end - return str -end - - -function string.striplong(str) -- strips all leading spaces - str = gsub(str,"^%s*","") - str = gsub(str,"[\n\r]+ *","\n") - return str -end - -- obsolete names: string.quote = string.quoted @@ -204,6 +175,8 @@ if not modules then modules = { } end modules ['l-lpeg'] = { local lpeg = require("lpeg") +local type = type + lpeg.patterns = lpeg.patterns or { } -- so that we can share local patterns = lpeg.patterns @@ -213,10 +186,16 @@ local Ct, C, Cs, Cc, Cf, Cg = lpeg.Ct, lpeg.C, lpeg.Cs, lpeg.Cc, lpeg.Cf, lpeg.C local utfcharacters = string.utfcharacters local utfgmatch = unicode and unicode.utf8.gmatch +local anything = P(1) +local endofstring = P(-1) + +patterns.anything = anything +patterns.endofstring = endofstring + local digit, sign = R('09'), S('+-') local cr, lf, crlf = P("\r"), P("\n"), P("\r\n") local utf8next = R("\128\191") -local escaped = P("\\") * P(1) +local escaped = P("\\") * anything local squote = P("'") local dquote = P('"') @@ -227,7 +206,7 @@ patterns.utf8four = R("\240\244") * utf8next * utf8next * utf8next patterns.utfbom = P('\000\000\254\255') + P('\255\254\000\000') + P('\255\254') + P('\254\255') + P('\239\187\191') local utf8char = patterns.utf8one + patterns.utf8two + patterns.utf8three + patterns.utf8four -local validutf8char = utf8char^0 * P(-1) * Cc(true) + Cc(false) +local validutf8char = utf8char^0 * endofstring * Cc(true) + Cc(false) patterns.utf8 = utf8char patterns.utf8char = utf8char @@ -252,6 +231,7 @@ patterns.uppercase = R("AZ") patterns.letter = patterns.lowercase + patterns.uppercase patterns.space = P(" ") patterns.tab = P("\t") +patterns.spaceortab = patterns.space + patterns.tab patterns.eol = S("\n\r") patterns.spacer = S(" \t\f\v") -- + string.char(0xc2, 0xa0) if we want utf (cf mail roberto) patterns.newline = crlf + cr + lf @@ -270,7 +250,7 @@ patterns.unsingle = (squote/"") * ((escaped + (1-squote))^0) * (squote/"") patterns.unquoted = patterns.undouble + patterns.unsingle -- more often undouble patterns.unspacer = ((patterns.spacer^1)/"")^0 -local unquoted = Cs(patterns.unquoted * P(-1)) -- not C +local unquoted = Cs(patterns.unquoted * endofstring) -- not C function string.unquoted(str) return match(unquoted,str) or str @@ -306,7 +286,7 @@ local function splitat(separator,single) separator = P(separator) local other = C((1 - separator)^0) if single then - local any = P(1) + local any = anything splitter = other * (separator * C(any^0) + "") -- ? splitters_s[separator] = splitter else @@ -366,7 +346,6 @@ function string.checkedsplit(str,separator) end - local f1 = string.byte local function f2(s) local c1, c2 = f1(s,1,2) return c1 * 64 + c2 - 12416 end @@ -444,7 +423,7 @@ function lpeg.secondofsplit(separator) -- nil if not split local splitter = splitters_s[separator] if not splitter then separator = P(separator) - splitter = (1 - separator)^0 * separator * C(P(1)^0) + splitter = (1 - separator)^0 * separator * C(anything^0) splitters_s[separator] = splitter end return splitter @@ -516,8 +495,8 @@ local simple_escapes = { -- also defines in l-string ["*"] = ".*", } -local p = Cs((S("-.+*%()[]") / patterns_escapes + P(1))^0) -local s = Cs((S("-.+*%()[]") / simple_escapes + P(1))^0) +local p = Cs((S("-.+*%()[]") / patterns_escapes + anything)^0) +local s = Cs((S("-.+*%()[]") / simple_escapes + anything)^0) function string.escapedpattern(str,simple) if simple then @@ -614,6 +593,18 @@ end +function lpeg.oneof(list,...) -- lpeg.oneof("elseif","else","if","then") + if type(list) ~= "table" then + list = { list, ... } + end + -- sort(list) -- longest match first + local p = P(list[1]) + for l=2,#list do + p = p + P(list[l]) + end + return p +end + end -- of closure @@ -4199,7 +4190,7 @@ if not modules then modules = { } end modules ['util.deb'] = { local debug = require "debug" local getinfo = debug.getinfo -local type, next = type, next +local type, next, tostring = type, next, tostring local format, find = string.format, string.find local is_boolean = string.is_boolean @@ -4288,6 +4279,19 @@ end +local is_node = node and node.is_node + +function inspect(i) + local ti = type(i) + if ti == "table" then + table.print(i,"table") + elseif is_node and is_node(i) then + print(node.sequenced(i)) + else + print(tostring(i)) + end +end + end -- of closure |