Added optional Lua lexer support.

This support is disabled by default and must be enabled via compile-time option.

1 files changed, 20 insertions, 0 deletions

diff --git a/lexlua/jsp.lua b/lexlua/jsp.lua
new file mode 100644
index 000000000..49f6625eb
--- /dev/null
+++ b/lexlua/jsp.lua
@@ -0,0 +1,20 @@
+-- Copyright 2006-2018 Mitchell mitchell.att.foicica.com. See License.txt.
+-- JSP LPeg lexer.
+
+local lexer = require('lexer')
+local token, word_match = lexer.token, lexer.word_match
+local P, R, S = lpeg.P, lpeg.R, lpeg.S
+
+local lex = lexer.new('jsp', {inherit = lexer.load('html')})
+
+-- Embedded Java.
+local java = lexer.load('java')
+local java_start_rule = token('jsp_tag', '<%' * P('=')^-1)
+local java_end_rule = token('jsp_tag', '%>')
+lex:embed(java, java_start_rule, java_end_rule, true)
+lex:add_style('jsp_tag', lexer.STYLE_EMBEDDED)
+
+-- Fold points.
+lex:add_fold_point('jsp_tag', '<%', '%>')
+
+return lex