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Diffstat (limited to 'pygments/lexers/slash.py')
| -rw-r--r-- | pygments/lexers/slash.py | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/pygments/lexers/slash.py b/pygments/lexers/slash.py new file mode 100644 index 00000000..bd73d463 --- /dev/null +++ b/pygments/lexers/slash.py @@ -0,0 +1,187 @@ +# -*- coding: utf-8 -*- +""" + pygments.lexers.slash + ~~~~~~~~~~~~~~~~~~~~~ + + Lexer for the `Slash <https://github.com/arturadib/Slash-A>`_ programming + language. + + :copyright: Copyright 2012 by GitHub, Inc + :license: BSD, see LICENSE for details. +""" + +import re + +from pygments.lexer import ExtendedRegexLexer, bygroups, DelegatingLexer +from pygments.token import Name, Number, String, Comment, Punctuation, \ + Other, Keyword, Operator, Whitespace + +__all__ = ['SlashLexer'] + + +class SlashLanguageLexer(ExtendedRegexLexer): + _nkw = r'(?=[^a-zA-Z_0-9])' + + def move_state(new_state): + return ("#pop", new_state) + + def right_angle_bracket(lexer, match, ctx): + if len(ctx.stack) > 1 and ctx.stack[-2] == "string": + ctx.stack.pop() + yield match.start(), String.Interpol, "}" + ctx.pos = match.end() + pass + + tokens = { + "root": [ + (r"<%=", Comment.Preproc, move_state("slash")), + (r"<%!!", Comment.Preproc, move_state("slash")), + (r"<%#.*?%>", Comment.Multiline), + (r"<%", Comment.Preproc, move_state("slash")), + (r".|\n", Other), + ], + "string": [ + (r"\\", String.Escape, move_state("string_e")), + (r"\"", String, move_state("slash")), + (r"#\{", String.Interpol, "slash"), + (r'.|\n', String), + ], + "string_e": [ + (r'n', String.Escape, move_state("string")), + (r't', String.Escape, move_state("string")), + (r'r', String.Escape, move_state("string")), + (r'e', String.Escape, move_state("string")), + (r'x[a-fA-F0-9]{2}', String.Escape, move_state("string")), + (r'.', String.Escape, move_state("string")), + ], + "regexp": [ + (r'}[a-z]*', String.Regex, move_state("slash")), + (r'\\(.|\n)', String.Regex), + (r'{', String.Regex, "regexp_r"), + (r'.|\n', String.Regex), + ], + "regexp_r": [ + (r'}[a-z]*', String.Regex, "#pop"), + (r'\\(.|\n)', String.Regex), + (r'{', String.Regex, "regexp_r"), + ], + "slash": [ + (r"%>", Comment.Preproc, move_state("root")), + (r"\"", String, move_state("string")), + (r"'[a-zA-Z0-9_]+", String), + (r'%r{', String.Regex, move_state("regexp")), + (r'/\*.*?\*/', Comment.Multiline), + (r"(#|//).*?\n", Comment.Single), + (r'-?[0-9]+e[+-]?[0-9]+', Number.Float), + (r'-?[0-9]+\.[0-9]+(e[+-]?[0-9]+)?', Number.Float), + (r'-?[0-9]+', Number.Integer), + (r'nil'+_nkw, Name.Builtin), + (r'true'+_nkw, Name.Builtin), + (r'false'+_nkw, Name.Builtin), + (r'self'+_nkw, Name.Builtin), + (r'(class)(\s+)([A-Z][a-zA-Z0-9_\']*)', + bygroups(Keyword, Whitespace, Name.Class)), + (r'class'+_nkw, Keyword), + (r'extends'+_nkw, Keyword), + (r'(def)(\s+)(self)(\s*)(\.)(\s*)([a-z_][a-zA-Z0-9_\']*=?|<<|>>|==|<=>|<=|<|>=|>|\+|-(self)?|~(self)?|\*|/|%|^|&&|&|\||\[\]=?)', + bygroups(Keyword, Whitespace, Name.Builtin, Whitespace, Punctuation, Whitespace, Name.Function)), + (r'(def)(\s+)([a-z_][a-zA-Z0-9_\']*=?|<<|>>|==|<=>|<=|<|>=|>|\+|-(self)?|~(self)?|\*|/|%|^|&&|&|\||\[\]=?)', + bygroups(Keyword, Whitespace, Name.Function)), + (r'def'+_nkw, Keyword), + (r'if'+_nkw, Keyword), + (r'elsif'+_nkw, Keyword), + (r'else'+_nkw, Keyword), + (r'unless'+_nkw, Keyword), + (r'for'+_nkw, Keyword), + (r'in'+_nkw, Keyword), + (r'while'+_nkw, Keyword), + (r'until'+_nkw, Keyword), + (r'and'+_nkw, Keyword), + (r'or'+_nkw, Keyword), + (r'not'+_nkw, Keyword), + (r'lambda'+_nkw, Keyword), + (r'try'+_nkw, Keyword), + (r'catch'+_nkw, Keyword), + (r'return'+_nkw, Keyword), + (r'next'+_nkw, Keyword), + (r'last'+_nkw, Keyword), + (r'throw'+_nkw, Keyword), + (r'use'+_nkw, Keyword), + (r'switch'+_nkw, Keyword), + (r'\\', Keyword), + (r'λ', Keyword), + (r'__FILE__'+_nkw, Name.Builtin.Pseudo), + (r'__LINE__'+_nkw, Name.Builtin.Pseudo), + (r'[A-Z][a-zA-Z0-9_\']*'+_nkw, Name.Constant), + (r'[a-z_][a-zA-Z0-9_\']*'+_nkw, Name), + (r'@[a-z_][a-zA-Z0-9_\']*'+_nkw, Name.Variable.Instance), + (r'@@[a-z_][a-zA-Z0-9_\']*'+_nkw, Name.Variable.Class), + (r'\(', Punctuation), + (r'\)', Punctuation), + (r'\[', Punctuation), + (r'\]', Punctuation), + (r'\{', Punctuation), + (r'\}', right_angle_bracket), + (r';', Punctuation), + (r',', Punctuation), + (r'<<=', Operator), + (r'>>=', Operator), + (r'<<', Operator), + (r'>>', Operator), + (r'==', Operator), + (r'!=', Operator), + (r'=>', Operator), + (r'=', Operator), + (r'<=>', Operator), + (r'<=', Operator), + (r'>=', Operator), + (r'<', Operator), + (r'>', Operator), + (r'\+\+', Operator), + (r'\+=', Operator), + (r'-=', Operator), + (r'\*\*=', Operator), + (r'\*=', Operator), + (r'\*\*', Operator), + (r'\*', Operator), + (r'/=', Operator), + (r'\+', Operator), + (r'-', Operator), + (r'/', Operator), + (r'%=', Operator), + (r'%', Operator), + (r'^=', Operator), + (r'&&=', Operator), + (r'&=', Operator), + (r'&&', Operator), + (r'&', Operator), + (r'\|\|=', Operator), + (r'\|=', Operator), + (r'\|\|', Operator), + (r'\|', Operator), + (r'!', Operator), + (r'\.\.\.', Operator), + (r'\.\.', Operator), + (r'\.', Operator), + (r'::', Operator), + (r':', Operator), + (r'(\s|\n)+', Whitespace), + (r'[a-z_][a-zA-Z0-9_\']*', Name.Variable), + ], + } + + +class SlashLexer(DelegatingLexer): + """ + Lexer for the Slash programming language. + + .. versionadded:: 2.4 + """ + + name = 'Slash' + aliases = ['slash'] + filenames = ['*.sl'] + + def __init__(self, **options): + from pygments.lexers.web import HtmlLexer + super(SlashLexer, self).__init__(HtmlLexer, SlashLanguageLexer, **options) |