Improve Gnuplot lexer.

* Merge comment tokens.
* Improve whitespace matching accuracy.

1 files changed, 28 insertions, 901 deletions

diff --git a/tests/examplefiles/gnuplot/test.plot.output b/tests/examplefiles/gnuplot/test.plot.output
index c1be5696..f065b29c 100644
--- a/tests/examplefiles/gnuplot/test.plot.output
+++ b/tests/examplefiles/gnuplot/test.plot.output
@@ -2,310 +2,35 @@
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-'$'           Comment
-'I'           Comment
-'d'           Comment
-':'           Comment
-' '           Comment
-'p'           Comment
-'r'           Comment
-'o'           Comment
-'b'           Comment
-'2'           Comment
-'.'           Comment
-'d'           Comment
-'e'           Comment
-'m'           Comment
-','           Comment
-'v'           Comment
-' '           Comment
-'1'           Comment
-'.'           Comment
-'9'           Comment
-' '           Comment
-'2'           Comment
-'0'           Comment
-'0'           Comment
-'6'           Comment
-'/'           Comment
-'0'           Comment
-'6'           Comment
-'/'           Comment
-'1'           Comment
-'4'           Comment
-' '           Comment
-'0'           Comment
-'3'           Comment
-':'           Comment
-'2'           Comment
-'4'           Comment
-':'           Comment
-'0'           Comment
-'9'           Comment
-' '           Comment
-'s'           Comment
-'f'           Comment
-'e'           Comment
-'a'           Comment
-'m'           Comment
-' '           Comment
-'E'           Comment
-'x'           Comment
-'p'           Comment
-' '           Comment
-'$'           Comment
+' $Id: prob2.dem,v 1.9 2006/06/14 03:24:09 sfeam Exp $' Comment
 '\n'          Text.Whitespace
 
 '#'           Comment
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-'D'           Comment
-'e'           Comment
-'m'           Comment
-'o'           Comment
-' '           Comment
-'S'           Comment
-'t'           Comment
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-'p'           Comment
-'p'           Comment
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-'r'           Comment
-'s'           Comment
-'i'           Comment
-'o'           Comment
-'n'           Comment
-' '           Comment
-'1'           Comment
-'.'           Comment
-'1'           Comment
+' Demo Statistical Approximations version 1.1' Comment
 '\n'          Text.Whitespace
 
 '#'           Comment
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-'C'           Comment
-'o'           Comment
-'p'           Comment
-'y'           Comment
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-'i'           Comment
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-'h'           Comment
-'t'           Comment
-' '           Comment
-'('           Comment
-'c'           Comment
-')'           Comment
-' '           Comment
-'1'           Comment
-'9'           Comment
-'9'           Comment
-'1'           Comment
-','           Comment
-' '           Comment
-'J'           Comment
-'o'           Comment
-'s'           Comment
-' '           Comment
-'v'           Comment
-'a'           Comment
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-' '           Comment
-'d'           Comment
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-'e'           Comment
-'@'           Comment
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-'u'           Comment
-'t'           Comment
-'.'           Comment
-'n'           Comment
-'l'           Comment
+' Copyright (c) 1991, Jos van der Woude, jvdwoude@hut.nl' Comment
 '\n'          Text.Whitespace
 
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-'H'           Comment
-'i'           Comment
-'s'           Comment
-'t'           Comment
-'o'           Comment
-'r'           Comment
-'y'           Comment
-':'           Comment
+' History:'   Comment
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-' '           Comment
-' '           Comment
-' '           Comment
-'-'           Comment
-'-'           Comment
-' '           Comment
-'-'           Comment
-'-'           Comment
-'-'           Comment
-' '           Comment
-'1'           Comment
-'9'           Comment
-'9'           Comment
-'1'           Comment
-' '           Comment
-'J'           Comment
-'o'           Comment
-'s'           Comment
-' '           Comment
-'v'           Comment
-'a'           Comment
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-'d'           Comment
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-' '           Comment
-'W'           Comment
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-' '           Comment
-'v'           Comment
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-'r'           Comment
-'s'           Comment
-'i'           Comment
-'o'           Comment
-'n'           Comment
+'    -- --- 1991 Jos van der Woude:  1st version' Comment
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-' '           Comment
-' '           Comment
-' '           Comment
-'0'           Comment
-'6'           Comment
-' '           Comment
-'J'           Comment
-'u'           Comment
-'n'           Comment
-' '           Comment
-'2'           Comment
-'0'           Comment
-'0'           Comment
-'6'           Comment
-' '           Comment
-'D'           Comment
-'a'           Comment
-'n'           Comment
-' '           Comment
-'S'           Comment
-'e'           Comment
-'b'           Comment
-'a'           Comment
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-'d'           Comment
-':'           Comment
-' '           Comment
-' '           Comment
-'A'           Comment
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-'d'           Comment
-'e'           Comment
-'d'           Comment
-' '           Comment
-'p'           Comment
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-'t'           Comment
-' '           Comment
-'m'           Comment
-'e'           Comment
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-'h'           Comment
-'o'           Comment
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-'f'           Comment
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-'b'           Comment
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-'i'           Comment
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-' '           Comment
-'e'           Comment
-'f'           Comment
-'f'           Comment
-'e'           Comment
-'c'           Comment
-'t'           Comment
-'.'           Comment
+'    06 Jun 2006 Dan Sebald:  Added plot methods for better visual effect.' Comment
 '\n'          Text.Whitespace
 
 '\n'          Text.Whitespace
@@ -471,7 +196,10 @@
 '\n'          Text.Whitespace
 
 'rnd'         Name.Function
-'(x) '        Text.Whitespace
+'('           Punctuation
+'x'           Text
+')'           Punctuation
+' '           Text.Whitespace
 '='           Operator
 ' '           Text.Whitespace
 'floor'       Name.Function
@@ -499,46 +227,7 @@
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-'B'           Comment
-'i'           Comment
-'n'           Comment
-'o'           Comment
-'m'           Comment
-'i'           Comment
-'a'           Comment
-'l'           Comment
-' '           Comment
-'P'           Comment
-'D'           Comment
-'F'           Comment
-' '           Comment
-'u'           Comment
-'s'           Comment
-'i'           Comment
-'n'           Comment
-'g'           Comment
-' '           Comment
-'n'           Comment
-'o'           Comment
-'r'           Comment
-'m'           Comment
-'a'           Comment
-'l'           Comment
-' '           Comment
-'a'           Comment
-'p'           Comment
-'p'           Comment
-'r'           Comment
-'o'           Comment
-'x'           Comment
-'i'           Comment
-'m'           Comment
-'a'           Comment
-'t'           Comment
-'i'           Comment
-'o'           Comment
-'n'           Comment
+' Binomial PDF using normal approximation' Comment
 '\n'          Text.Whitespace
 
 'n'           Name.Variable
@@ -674,31 +363,7 @@
 ')'           Punctuation
 ' '           Text.Whitespace
 '#'           Comment
-'m'           Comment
-'o'           Comment
-'d'           Comment
-'e'           Comment
-' '           Comment
-'o'           Comment
-'f'           Comment
-' '           Comment
-'b'           Comment
-'i'           Comment
-'n'           Comment
-'o'           Comment
-'m'           Comment
-'i'           Comment
-'a'           Comment
-'l'           Comment
-' '           Comment
-'P'           Comment
-'D'           Comment
-'F'           Comment
-' '           Comment
-'u'           Comment
-'s'           Comment
-'e'           Comment
-'d'           Comment
+'mode of binomial PDF used' Comment
 '\n'          Text.Whitespace
 
 'set'         Keyword
@@ -1021,47 +686,7 @@
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-'B'           Comment
-'i'           Comment
-'n'           Comment
-'o'           Comment
-'m'           Comment
-'i'           Comment
-'a'           Comment
-'l'           Comment
-' '           Comment
-'P'           Comment
-'D'           Comment
-'F'           Comment
-' '           Comment
-'u'           Comment
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-'i'           Comment
-'n'           Comment
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-'i'           Comment
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-'a'           Comment
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-'o'           Comment
-'x'           Comment
-'i'           Comment
-'m'           Comment
-'a'           Comment
-'t'           Comment
-'i'           Comment
-'o'           Comment
-'n'           Comment
+' Binomial PDF using poisson approximation' Comment
 '\n'          Text.Whitespace
 
 'n'           Name.Variable
@@ -1183,31 +808,7 @@
 ')'           Punctuation
 ' '           Text.Whitespace
 '#'           Comment
-'m'           Comment
-'o'           Comment
-'d'           Comment
-'e'           Comment
-' '           Comment
-'o'           Comment
-'f'           Comment
-' '           Comment
-'b'           Comment
-'i'           Comment
-'n'           Comment
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-'m'           Comment
-'i'           Comment
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-' '           Comment
-'P'           Comment
-'D'           Comment
-'F'           Comment
-' '           Comment
-'u'           Comment
-'s'           Comment
-'e'           Comment
-'d'           Comment
+'mode of binomial PDF used' Comment
 '\n'          Text.Whitespace
 
 'set'         Keyword
@@ -1538,46 +1139,7 @@
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-'G'           Comment
-'e'           Comment
-'o'           Comment
-'m'           Comment
-'e'           Comment
-'t'           Comment
-'r'           Comment
-'i'           Comment
-'c'           Comment
-' '           Comment
-'P'           Comment
-'D'           Comment
-'F'           Comment
-' '           Comment
-'u'           Comment
-'s'           Comment
-'i'           Comment
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-'r'           Comment
-'o'           Comment
-'x'           Comment
-'i'           Comment
-'m'           Comment
-'a'           Comment
-'t'           Comment
-'i'           Comment
-'o'           Comment
-'n'           Comment
+' Geometric PDF using gamma approximation' Comment
 '\n'          Text.Whitespace
 
 'p'           Keyword
@@ -2018,47 +1580,7 @@
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-'G'           Comment
-'e'           Comment
-'o'           Comment
-'m'           Comment
-'e'           Comment
-'t'           Comment
-'r'           Comment
-'i'           Comment
-'c'           Comment
-' '           Comment
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-' '           Comment
-'u'           Comment
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-'i'           Comment
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-' '           Comment
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-'a'           Comment
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-'o'           Comment
-'x'           Comment
-'i'           Comment
-'m'           Comment
-'a'           Comment
-'t'           Comment
-'i'           Comment
-'o'           Comment
-'n'           Comment
+' Geometric PDF using normal approximation' Comment
 '\n'          Text.Whitespace
 
 'p'           Keyword
@@ -2481,54 +2003,7 @@
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-'H'           Comment
-'y'           Comment
-'p'           Comment
-'e'           Comment
-'r'           Comment
-'g'           Comment
-'e'           Comment
-'o'           Comment
-'m'           Comment
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-' '           Comment
-'b'           Comment
-'i'           Comment
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-'m'           Comment
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-' '           Comment
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-'x'           Comment
-'i'           Comment
-'m'           Comment
-'a'           Comment
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-'i'           Comment
-'o'           Comment
-'n'           Comment
+' Hypergeometric PDF using binomial approximation' Comment
 '\n'          Text.Whitespace
 
 'nn'          Name.Variable
@@ -2703,28 +2178,7 @@
 ')'           Punctuation
 ' '           Text.Whitespace
 '#'           Comment
-'m'           Comment
-'o'           Comment
-'d'           Comment
-'e'           Comment
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-' '           Comment
-'P'           Comment
-'D'           Comment
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-' '           Comment
-'u'           Comment
-'s'           Comment
-'e'           Comment
-'d'           Comment
+'mode of binom PDF used' Comment
 '\n'          Text.Whitespace
 
 'set'         Keyword
@@ -3073,52 +2527,7 @@
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-'H'           Comment
-'y'           Comment
-'p'           Comment
-'e'           Comment
-'r'           Comment
-'g'           Comment
-'e'           Comment
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-'i'           Comment
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-'i'           Comment
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-'n'           Comment
+' Hypergeometric PDF using normal approximation' Comment
 '\n'          Text.Whitespace
 
 'nn'          Name.Variable
@@ -3293,28 +2702,7 @@
 ')'           Punctuation
 ' '           Text.Whitespace
 '#'           Comment
-'m'           Comment
-'o'           Comment
-'d'           Comment
-'e'           Comment
-' '           Comment
-'o'           Comment
-'f'           Comment
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-'m'           Comment
-' '           Comment
-'P'           Comment
-'D'           Comment
-'F'           Comment
-' '           Comment
-'u'           Comment
-'s'           Comment
-'e'           Comment
-'d'           Comment
+'mode of binom PDF used' Comment
 '\n'          Text.Whitespace
 
 'set'         Keyword
@@ -3640,54 +3028,7 @@
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-'N'           Comment
-'e'           Comment
-'g'           Comment
-'a'           Comment
-'t'           Comment
-'i'           Comment
-'v'           Comment
-'e'           Comment
-' '           Comment
-'b'           Comment
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-'m'           Comment
-'i'           Comment
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-' '           Comment
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-'x'           Comment
-'i'           Comment
-'m'           Comment
-'a'           Comment
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-'i'           Comment
-'o'           Comment
-'n'           Comment
+' Negative binomial PDF using gamma approximation' Comment
 '\n'          Text.Whitespace
 
 'r'           Name.Variable
@@ -3848,28 +3189,7 @@
 ')'           Punctuation
 ' '           Text.Whitespace
 '#'           Comment
-'m'           Comment
-'o'           Comment
-'d'           Comment
-'e'           Comment
-' '           Comment
-'o'           Comment
-'f'           Comment
-' '           Comment
-'g'           Comment
-'a'           Comment
-'m'           Comment
-'m'           Comment
-'a'           Comment
-' '           Comment
-'P'           Comment
-'D'           Comment
-'F'           Comment
-' '           Comment
-'u'           Comment
-'s'           Comment
-'e'           Comment
-'d'           Comment
+'mode of gamma PDF used' Comment
 '\n'          Text.Whitespace
 
 'set'         Keyword
@@ -4192,55 +3512,7 @@
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-'N'           Comment
-'e'           Comment
-'g'           Comment
-'a'           Comment
-'t'           Comment
-'i'           Comment
-'v'           Comment
-'e'           Comment
-' '           Comment
-'b'           Comment
-'i'           Comment
-'n'           Comment
-'o'           Comment
-'m'           Comment
-'i'           Comment
-'a'           Comment
-'l'           Comment
-' '           Comment
-'P'           Comment
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-'F'           Comment
-' '           Comment
-'u'           Comment
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-'i'           Comment
-'n'           Comment
-'g'           Comment
-' '           Comment
-'n'           Comment
-'o'           Comment
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-'m'           Comment
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-' '           Comment
-'a'           Comment
-'p'           Comment
-'p'           Comment
-'r'           Comment
-'o'           Comment
-'x'           Comment
-'i'           Comment
-'m'           Comment
-'a'           Comment
-'t'           Comment
-'i'           Comment
-'o'           Comment
-'n'           Comment
+' Negative binomial PDF using normal approximation' Comment
 '\n'          Text.Whitespace
 
 'r'           Name.Variable
@@ -4381,28 +3653,7 @@
 ')'           Punctuation
 ' '           Text.Whitespace
 '#'           Comment
-'m'           Comment
-'o'           Comment
-'d'           Comment
-'e'           Comment
-' '           Comment
-'o'           Comment
-'f'           Comment
-' '           Comment
-'g'           Comment
-'a'           Comment
-'m'           Comment
-'m'           Comment
-'a'           Comment
-' '           Comment
-'P'           Comment
-'D'           Comment
-'F'           Comment
-' '           Comment
-'u'           Comment
-'s'           Comment
-'e'           Comment
-'d'           Comment
+'mode of gamma PDF used' Comment
 '\n'          Text.Whitespace
 
 'set'         Keyword
@@ -4725,46 +3976,7 @@
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-'N'           Comment
-'o'           Comment
-'r'           Comment
-'m'           Comment
-'a'           Comment
-'l'           Comment
-' '           Comment
-'P'           Comment
-'D'           Comment
-'F'           Comment
-' '           Comment
-'u'           Comment
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-'i'           Comment
-'n'           Comment
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-' '           Comment
-'l'           Comment
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-'x'           Comment
-'i'           Comment
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-'a'           Comment
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-'o'           Comment
-'n'           Comment
+' Normal PDF using logistic approximation' Comment
 '\n'          Text.Whitespace
 
 'mu'          Name.Variable
@@ -4858,31 +4070,7 @@
 ')'           Punctuation
 ' '           Text.Whitespace
 '#'           Comment
-'m'           Comment
-'o'           Comment
-'d'           Comment
-'e'           Comment
-' '           Comment
-'o'           Comment
-'f'           Comment
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-'l'           Comment
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-' '           Comment
-'P'           Comment
-'D'           Comment
-'F'           Comment
-' '           Comment
-'u'           Comment
-'s'           Comment
-'e'           Comment
-'d'           Comment
+'mode of logistic PDF used' Comment
 '\n'          Text.Whitespace
 
 'set'         Keyword
@@ -5188,45 +4376,7 @@
 '\n'          Text.Whitespace
 
 '#'           Comment
-' '           Comment
-'P'           Comment
-'o'           Comment
-'i'           Comment
-'s'           Comment
-'s'           Comment
-'o'           Comment
-'n'           Comment
-' '           Comment
-'P'           Comment
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-'n'           Comment
+' Poisson PDF using normal approximation' Comment
 '\n'          Text.Whitespace
 
 'mu'          Name.Variable
@@ -5318,30 +4468,7 @@
 ')'           Punctuation
 ' '           Text.Whitespace
 '#'           Comment
-'m'           Comment
-'o'           Comment
-'d'           Comment
-'e'           Comment
-' '           Comment
-'o'           Comment
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-'P'           Comment
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-' '           Comment
-'u'           Comment
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-'e'           Comment
-'d'           Comment
+'mode of poisson PDF used' Comment
 '\n'          Text.Whitespace
 
 'set'         Keyword