1 files changed, 70 insertions, 0 deletions
diff --git a/lua/lexers/gnuplot.lua b/lua/lexers/gnuplot.lua
new file mode 100644
index 0000000..aab557c
--- /dev/null
+++ b/lua/lexers/gnuplot.lua
@@ -0,0 +1,70 @@
+-- Copyright 2006-2024 Mitchell. See LICENSE.
+-- Gnuplot LPeg lexer.
+
+local lexer = lexer
+local token, word_match = lexer.token, lexer.word_match
+local P, S = lpeg.P, lpeg.S
+
+local lex = lexer.new(...)
+
+-- Keywords.
+lex:add_rule('keyword', lex:tag(lexer.KEYWORD, lex:word_match(lexer.KEYWORD)))
+
+-- Functions.
+lex:add_rule('function', lex:tag(lexer.FUNCTION_BUILTIN, lex:word_match(lexer.FUNCTION_BUILTIN)))
+
+-- Variables.
+lex:add_rule('variable', lex:tag(lexer.VARIABLE_BUILTIN, lex:word_match(lexer.VARIABLE_BUILTIN)))
+
+-- Identifiers.
+lex:add_rule('identifier', lex:tag(lexer.IDENTIFIER, lexer.word))
+
+-- Strings.
+local sq_str = lexer.range("'")
+local dq_str = lexer.range('"')
+local br_str = lexer.range('[', ']', true) + lexer.range('{', '}', true)
+lex:add_rule('string', lex:tag(lexer.STRING, sq_str + dq_str + br_str))
+
+-- Comments.
+lex:add_rule('comment', lex:tag(lexer.COMMENT, lexer.to_eol('#')))
+
+-- Numbers.
+lex:add_rule('number', lex:tag(lexer.NUMBER, lexer.number))
+
+-- Operators.
+lex:add_rule('operator', lex:tag(lexer.OPERATOR, S('-+~!$*%=<>&|^?:;()')))
+
+-- Word lists.
+lex:set_word_list(lexer.KEYWORD, {
+  'cd', 'call', 'clear', 'exit', 'fit', 'help', 'history', 'if', 'load', 'pause', 'plot', 'using',
+  'with', 'index', 'every', 'smooth', 'thru', 'print', 'pwd', 'quit', 'replot', 'reread', 'reset',
+  'save', 'set', 'show', 'unset', 'shell', 'splot', 'system', 'test', 'unset', 'update'
+})
+
+lex:set_word_list(lexer.FUNCTION_BUILTIN, {
+  'abs', 'acos', 'acosh', 'arg', 'asin', 'asinh', 'atan', 'atan2', 'atanh', 'besj0', 'besj1',
+  'besy0', 'besy1', 'ceil', 'cos', 'cosh', 'erf', 'erfc', 'exp', 'floor', 'gamma', 'ibeta',
+  'inverf', 'igamma', 'imag', 'invnorm', 'int', 'lambertw', 'lgamma', 'log', 'log10', 'norm',
+  'rand', 'real', 'sgn', 'sin', 'sinh', 'sqrt', 'tan', 'tanh', 'column', 'defined', 'tm_hour',
+  'tm_mday', 'tm_min', 'tm_mon', 'tm_sec', 'tm_wday', 'tm_yday', 'tm_year', 'valid'
+})
+
+lex:set_word_list(lexer.VARIABLE_BUILTIN, {
+  'angles', 'arrow', 'autoscale', 'bars', 'bmargin', 'border', 'boxwidth', 'clabel', 'clip',
+  'cntrparam', 'colorbox', 'contour', 'datafile', 'decimalsign', 'dgrid3d', 'dummy', 'encoding',
+  'fit', 'fontpath', 'format', 'functions', 'function', 'grid', 'hidden3d', 'historysize',
+  'isosamples', 'key', 'label', 'lmargin', 'loadpath', 'locale', 'logscale', 'mapping', 'margin',
+  'mouse', 'multiplot', 'mx2tics', 'mxtics', 'my2tics', 'mytics', 'mztics', 'offsets', 'origin',
+  'output', 'parametric', 'plot', 'pm3d', 'palette', 'pointsize', 'polar', 'print', 'rmargin',
+  'rrange', 'samples', 'size', 'style', 'surface', 'terminal', 'tics', 'ticslevel', 'ticscale',
+  'timestamp', 'timefmt', 'title', 'tmargin', 'trange', 'urange', 'variables', 'version', 'view',
+  'vrange', 'x2data', 'x2dtics', 'x2label', 'x2mtics', 'x2range', 'x2tics', 'x2zeroaxis', 'xdata',
+  'xdtics', 'xlabel', 'xmtics', 'xrange', 'xtics', 'xzeroaxis', 'y2data', 'y2dtics', 'y2label',
+  'y2mtics', 'y2range', 'y2tics', 'y2zeroaxis', 'ydata', 'ydtics', 'ylabel', 'ymtics', 'yrange',
+  'ytics', 'yzeroaxis', 'zdata', 'zdtics', 'cbdata', 'cbdtics', 'zero', 'zeroaxis', 'zlabel',
+  'zmtics', 'zrange', 'ztics', 'cblabel', 'cbmtics', 'cbrange', 'cbtics'
+})
+
+lexer.property['scintillua.comment'] = '#'
+
+return lex