diff options
Diffstat (limited to 'libs')
| -rw-r--r-- | libs/core/luasrc/util.lua | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/libs/core/luasrc/util.lua b/libs/core/luasrc/util.lua index f45a1f966..a248026f1 100644 --- a/libs/core/luasrc/util.lua +++ b/libs/core/luasrc/util.lua @@ -200,7 +200,7 @@ local function _pcdata_repl(c) ( i >= 0x0E and i <= 0x1F ) or ( i == 0x7F ) then return "" - + elseif ( i == 0x26 ) or ( i == 0x27 ) or ( i == 0x22 ) or ( i == 0x3C ) or ( i == 0x3E ) then @@ -282,6 +282,22 @@ function cmatch(str, pat) return count end +--- Return a matching iterator for the given value. The iterator will return +-- one token per invocation, the tokens are separated by whitespace. If the +-- input value is a table, it is transformed into a string first. A nil value +-- will result in a valid interator which aborts with the first invocation. +-- @param val The value to scan (table, string or nil) +-- @return Iterator which returns one token per call +function imatch(v) + if v == nil then + v = "" + elseif type(v) == "table" then + v = table.concat(v, " ") + end + + return v:gmatch("%S+") +end + --- Parse certain units from the given string and return the canonical integer -- value or 0 if the unit is unknown. Upper- or lower case is irrelevant. -- Recognized units are: |