diff options
| -rw-r--r-- | lualibs-util-prs.lua | 36 | ||||
| -rw-r--r-- | lualibs-util-str.lua | 12 |
2 files changed, 45 insertions, 3 deletions
diff --git a/lualibs-util-prs.lua b/lualibs-util-prs.lua index 7a8c3ce..29a57e0 100644 --- a/lualibs-util-prs.lua +++ b/lualibs-util-prs.lua @@ -40,8 +40,8 @@ local newline = lpegpatterns.newline local anything = lpegpatterns.anything local endofstring = lpegpatterns.endofstring -local nobrace = 1 - ( lbrace + rbrace ) -local noparent = 1 - ( lparent + rparent) +local nobrace = 1 - (lbrace + rbrace ) +local noparent = 1 - (lparent + rparent) -- we could use a Cf Cg construct @@ -189,6 +189,38 @@ function parsers.settings_to_array(str,strict) end end +-- this one also strips end spaces before separators +-- +-- "{123} , 456 " -> "123" "456" + +local separator = space^0 * comma * space^0 +local value = P(lbrace * C((nobrace + nestedbraces)^0) * rbrace) + + C((nestedbraces + (1-(space^0*(comma+P(-1)))))^0) +local withvalue = Carg(1) * value / function(f,s) return f(s) end +local pattern_a = spaces * Ct(value*(separator*value)^0) +local pattern_b = spaces * withvalue * (separator*withvalue)^0 + +function parsers.stripped_settings_to_array(str) + if not str or str == "" then + return { } + else + return lpegmatch(pattern_a,str) + end +end + +function parsers.process_stripped_settings(str,action) + if not str or str == "" then + return { } + else + return lpegmatch(pattern_b,str,1,action) + end +end + +-- parsers.process_stripped_settings("{123} , 456 ",function(s) print("["..s.."]") end) +-- parsers.process_stripped_settings("123 , 456 ",function(s) print("["..s.."]") end) + +-- + local function set(t,v) t[#t+1] = v end diff --git a/lualibs-util-str.lua b/lualibs-util-str.lua index 09fa26f..24a3f6e 100644 --- a/lualibs-util-str.lua +++ b/lualibs-util-str.lua @@ -614,6 +614,13 @@ end -- +local format_z = function(f) + n = n + (tonumber(f) or 1) + return "''" -- okay, not that efficient to append '' but a special case anyway +end + +-- + local format_rest = function(s) return format("%q",s) -- catches " and \n and such end @@ -671,6 +678,7 @@ local builder = Cs { "start", + V("A") -- new + V("j") + V("J") -- stripped e E + V("m") + V("M") -- new + + V("z") -- new -- + V("*") -- ignores probably messed up % ) @@ -720,6 +728,8 @@ local builder = Cs { "start", ["m"] = (prefix_tab * P("m")) / format_m, -- %m => xxx.xxx.xxx,xx (optional prefix instead of .) ["M"] = (prefix_tab * P("M")) / format_M, -- %M => xxx,xxx,xxx.xx (optional prefix instead of ,) -- + ["z"] = (prefix_any * P("z")) / format_z, -- %M => xxx,xxx,xxx.xx (optional prefix instead of ,) + -- ["a"] = (prefix_any * P("a")) / format_a, -- %a => '...' (forces tostring) ["A"] = (prefix_any * P("A")) / format_A, -- %A => "..." (forces tostring) -- @@ -750,7 +760,7 @@ local function make(t,str) p = lpegmatch(builder,str,1,"..",t._extensions_) -- after this we know n if n > 0 then p = format(template,preamble,t._preamble_,arguments[n],p) --- print("builder>",p) +-- print("builder>",p) f = loadstripped(p)() else f = function() return str end |