libraries/lua-lpeg: Added (pattern matching library for Lua).

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/libraries/lua-lpeg/README b/libraries/lua-lpeg/README
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+LPeg is a new pattern-matching library for Lua, based on Parsing Expression
+Grammars (PEGs).
+
+The library offers several functions to create and compose patterns. With the
+use of metamethods, several of these functions are provided as infix or prefix
+operators. On the one hand, the result is usually much more verbose than the
+typical encoding of patterns using the so called regular expressions (which
+typically are not regular expressions in the formal sense). On the other hand,
+first-class patterns allow much better documentation (as it is easy to comment
+the code, to break complex definitions in smaller parts, etc.) and are
+extensible, as we can define new functions to create and compose patterns.