lexer: add simple strace(1) output lexer

1 files changed, 31 insertions, 0 deletions

diff --git a/lua/lexers/strace.lua b/lua/lexers/strace.lua
new file mode 100644
index 0000000..deb8fb7
--- /dev/null
+++ b/lua/lexers/strace.lua
@@ -0,0 +1,31 @@
+-- strace(1) output lexer
+
+local l = require('lexer')
+local token, word_match = l.token, l.word_match
+local S = lpeg.S
+
+local M = {_NAME = 'strace'}
+
+local ws = token(l.WHITESPACE, l.space^1)
+local string = token(l.STRING, l.delimited_range('"', true) + l.delimited_range("'", true))
+local number = token(l.NUMBER, l.float + l.integer)
+local constant = token(l.CONSTANT, (l.upper + '_') * (l.upper + l.digit + '_')^0)
+local syscall = token(l.KEYWORD, l.starts_line(l.word))
+local operator = token(l.OPERATOR, S('+-/*%<>~!=^&|?~:;,.()[]{}'))
+local comment = token(l.COMMENT, l.nested_pair('/*', '*/') + ('(' * (l.alpha + ' ')^1 * ')\n'))
+local result = token(l.TYPE, '= ' * l.integer)
+
+M._rules = {
+  {'whitespace', ws},
+  {'keyword', syscall},
+  {'constant', constant},
+  {'string', string},
+  {'comment', comment},
+  {'type', result},
+  {'number', number},
+  {'operator', operator},
+}
+
+M._LEXBYLINE = true
+
+return M