1 unstable release

0.1.0 May 3, 2022

#501 in Template engine


Used in sewer

MIT license

7KB
146 lines

sewer-replacement

Simple inverse-regex style template language, for use in replacements

At replacements, provides several patterns:

Pattern Inserts
$$ Literal "$"
$n, where n - number Indexed match, i.e str.replace("aaa(bbb)", "$1aaa") == "bbbaaa". Zero index is reserved for full match. If specified group does not exists - then throws error, see below for error handling
$<name>, where name - string Named match, i.e str.replace("aaa(?P<name>bbb)", "$<name>aaa") == "bbbaaa". If specified group does not exists - then throws error
\\ Literal "\"
\ Literal " "
\xnn, where n - hex digit Insert literal byte with hex code 0xnn
(expr1|expr2|expr3...), where expr - replacement expression Try to execute expr1, if error is thrown (see above) - then try next expression, if no expression is matched - throw error

Expression may start with (?x), this makes parser ignore whitespace, and allows writing comments

(?x)
$<group1> # Insert group 1
==
$<group2> # Insert group 2

Dependencies

~0.3–0.8MB
~18K SLoC