diff options
Diffstat (limited to 'tex/context/base/util-tpl.lua')
| -rw-r--r-- | tex/context/base/util-tpl.lua | 45 |
1 files changed, 33 insertions, 12 deletions
diff --git a/tex/context/base/util-tpl.lua b/tex/context/base/util-tpl.lua index 2a728d373..f6648b224 100644 --- a/tex/context/base/util-tpl.lua +++ b/tex/context/base/util-tpl.lua @@ -20,6 +20,8 @@ local report_template = logs.reporter("template") local format = string.format local P, C, Cs, Carg, lpegmatch = lpeg.P, lpeg.C, lpeg.Cs, lpeg.Carg, lpeg.match +-- todo: make installable template.new + local replacer local function replacekey(k,t) @@ -33,40 +35,59 @@ local function replacekey(k,t) if trace_template then report_template("setting key %q to value %q",k,v) end - -- return v return lpegmatch(replacer,v,1,t) -- recursive end end ------ leftmarker = P("<!-- ") / "" ------ rightmarker = P(" --!>") / "" +local sqlescape = lpeg.replacer { + { "'", "''" }, + { "\\", "\\\\" }, + { "\r\n", "\\n" }, + { "\r", "\\n" }, + -- { "\t", "\\t" }, +} + +local escapers = { + lua = function(s) + return format("%q",s) + end, + sql = function(s) + return lpegmatch(sqlescape,s) + end, +} + +local function replacekeyunquoted(s,t,how) -- ".. \" " + local escaper = how and escapers[how] or escapers.lua + return escaper(replacekey(s,t)) +end local single = P("%") -- test %test% test : resolves test local double = P("%%") -- test 10%% test : %% becomes % local lquoted = P("%[") -- test %[test]" test : resolves test with escaped "'s local rquoted = P("]%") -- -local escape = double / "%%" -local nosingle = single / "" -local nodouble = double / "" -local nolquoted = lquoted / "" -local norquoted = rquoted / "" +local escape = double / '%%' +local nosingle = single / '' +local nodouble = double / '' +local nolquoted = lquoted / '' +local norquoted = rquoted / '' local key = nosingle * (C((1-nosingle)^1 * Carg(1))/replacekey) * nosingle -local unquoted = nolquoted * ((C((1 - norquoted)^1) * Carg(1))/function(s,t) return format("%q",replacekey(s,t)) end) * norquoted +local unquoted = nolquoted * ((C((1 - norquoted)^1) * Carg(1) * Carg(2))/replacekeyunquoted) * norquoted local any = P(1) replacer = Cs((unquoted + escape + key + any)^0) -local function replace(str,mapping) +local function replace(str,mapping,how) if mapping then - return lpegmatch(replacer,str,1,mapping) or str + return lpegmatch(replacer,str,1,mapping,how or "lua") or str else return str end end --- print(replace("test %[x]% test",{ x = [[a "x" a]] })) +-- print(replace("test '%[x]%' test",{ x = [[a 'x' a]] })) +-- print(replace("test '%[x]%' test",{ x = [[a 'x' a]] },'sql')) templates.replace = replace |