From 7ef0c5b362e4df3e85449f3c397ca3b61edf15a0 Mon Sep 17 00:00:00 2001 From: Karl Berry Date: Sun, 5 Feb 2017 23:22:36 +0000 Subject: lualibs (4feb17) git-svn-id: svn://tug.org/texlive/trunk@43153 c570f23f-e606-0410-a88d-b1316a301751 --- Master/texmf-dist/tex/luatex/lualibs/lualibs-string.lua | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'Master/texmf-dist/tex/luatex/lualibs/lualibs-string.lua') diff --git a/Master/texmf-dist/tex/luatex/lualibs/lualibs-string.lua b/Master/texmf-dist/tex/luatex/lualibs/lualibs-string.lua index e9dc2bbbcff..be8f397aee3 100644 --- a/Master/texmf-dist/tex/luatex/lualibs/lualibs-string.lua +++ b/Master/texmf-dist/tex/luatex/lualibs/lualibs-string.lua @@ -75,19 +75,19 @@ local collapser = patterns.collapser local longtostring = patterns.longtostring function string.strip(str) - return lpegmatch(stripper,str) or "" + return str and lpegmatch(stripper,str) or "" end function string.fullstrip(str) - return lpegmatch(fullstripper,str) or "" + return str and lpegmatch(fullstripper,str) or "" end function string.collapsespaces(str) - return lpegmatch(collapser,str) or "" + return str and lpegmatch(collapser,str) or "" end function string.longtostring(str) - return lpegmatch(longtostring,str) or "" + return str and lpegmatch(longtostring,str) or "" end -- function string.is_empty(str) @@ -99,7 +99,7 @@ local pattern = P(" ")^0 * P(-1) -- maybe also newlines -- patterns.onlyspaces = pattern function string.is_empty(str) - if str == "" then + if not str or str == "" then return true else return lpegmatch(pattern,str) and true or false @@ -163,7 +163,7 @@ function string.escapedpattern(str,simple) end function string.topattern(str,lowercase,strict) - if str=="" or type(str) ~= "string" then + if str == "" or type(str) ~= "string" then return ".*" elseif strict then str = lpegmatch(pattern_c,str) @@ -177,6 +177,7 @@ function string.topattern(str,lowercase,strict) end end +-- print(string.escapedpattern("abc*234",true)) -- print(string.escapedpattern("12+34*.tex",false)) -- print(string.escapedpattern("12+34*.tex",true)) -- print(string.topattern ("12+34*.tex",false,false)) -- cgit v1.2.3