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| author | Vsevolod Stakhov <vsevolod@highsecure.ru> | 2017-03-25 12:27:52 +0000 |
|---|---|---|
| committer | Vsevolod Stakhov <vsevolod@highsecure.ru> | 2017-03-25 12:27:52 +0000 |
| commit | 1498f2c5cbbc415c898621c233261ff5d41bc15d (patch) | |
| tree | 25feb12267af755c27c40c12c2bcea87ad12b55f /src/plugins/lua/metadata_exporter.lua | |
| parent | 9fa0dcd5b10ad58ed55575a5daf4326209a0787a (diff) | |
| download | rspamd-1498f2c5cbbc415c898621c233261ff5d41bc15d.tar.gz rspamd-1498f2c5cbbc415c898621c233261ff5d41bc15d.zip | |
[Feature] Memoize LPEG grammars
Diffstat (limited to 'src/plugins/lua/metadata_exporter.lua')
| -rw-r--r-- | src/plugins/lua/metadata_exporter.lua | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/src/plugins/lua/metadata_exporter.lua b/src/plugins/lua/metadata_exporter.lua index 36e2a819a..8d0778ad5 100644 --- a/src/plugins/lua/metadata_exporter.lua +++ b/src/plugins/lua/metadata_exporter.lua @@ -128,16 +128,19 @@ local function get_general_metadata(task, flatten, no_content) return r end +local template_grammar local function simple_template(tmpl, keys) local lpeg = require "lpeg" - local var_lit = lpeg.P { lpeg.R("az") + lpeg.R("AZ") + lpeg.R("09") + "_" } - local var = lpeg.P { (lpeg.P("$") / "") * ((var_lit^1) / keys) } - local var_braced = lpeg.P { (lpeg.P("${") / "") * ((var_lit^1) / keys) * (lpeg.P("}") / "") } + if not template_grammar then + local var_lit = lpeg.P { lpeg.R("az") + lpeg.R("AZ") + lpeg.R("09") + "_" } + local var = lpeg.P { (lpeg.P("$") / "") * ((var_lit^1) / keys) } + local var_braced = lpeg.P { (lpeg.P("${") / "") * ((var_lit^1) / keys) * (lpeg.P("}") / "") } - local rep = lpeg.Cs((var + var_braced + 1)^0) + template_grammar = lpeg.Cs((var + var_braced + 1)^0) + end - return lpeg.match(rep, tmpl) + return lpeg.match(template_grammar, tmpl) end local formatters = { |