diff options
Diffstat (limited to 'tex/context/base/l-lpeg.lua')
| -rw-r--r-- | tex/context/base/l-lpeg.lua | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tex/context/base/l-lpeg.lua b/tex/context/base/l-lpeg.lua index cffcc86e1..0a4ee0ba3 100644 --- a/tex/context/base/l-lpeg.lua +++ b/tex/context/base/l-lpeg.lua @@ -29,7 +29,9 @@ patterns.sign = sign patterns.cardinal = sign^0 * digit^1 patterns.integer = sign^0 * digit^1 patterns.float = sign^0 * digit^0 * P('.') * digit^1 +patterns.cfloat = sign^0 * digit^0 * P(',') * digit^1 patterns.number = patterns.float + patterns.integer +patterns.cnumber = patterns.cfloat + patterns.integer patterns.oct = P("0") * R("07")^1 patterns.octal = patterns.oct patterns.HEX = P("0x") * R("09","AF")^1 @@ -248,6 +250,10 @@ function lpeg.secondofsplit(separator) -- nil if not split return splitter end +function lpeg.balancer(left,right) + return P { left * ((1 - left - right) + V(1))^0 * right } +end + --~ print(1,match(lpeg.firstofsplit(":"),"bc:de")) --~ print(2,match(lpeg.firstofsplit(":"),":de")) -- empty --~ print(3,match(lpeg.firstofsplit(":"),"bc")) |