diff options
Diffstat (limited to 'tex/context/base/l-lpeg.lua')
| -rw-r--r-- | tex/context/base/l-lpeg.lua | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tex/context/base/l-lpeg.lua b/tex/context/base/l-lpeg.lua index 9193bac9a..868a6d52e 100644 --- a/tex/context/base/l-lpeg.lua +++ b/tex/context/base/l-lpeg.lua @@ -284,6 +284,14 @@ function lpeg.keeper(str) end end +function lpeg.frontstripper(str) -- or pattern (yet undocumented) + return (P(str) + P(true)) * Cs(P(1)^0) +end + +function lpeg.endstripper(str) -- or pattern (yet undocumented) + return Cs((1 - P(str) * P(-1))^0) +end + -- Just for fun I looked at the used bytecode and -- p = (p and p + pp) or pp gets one more (testset). |