Source Code for Module ganeti.build.shell_example_lexer

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29   
30   
31  """Pygments lexer for our custom shell example sessions. 
32   
33  The lexer support the following custom markup: 
34   
35    - comments: # this is a comment 
36    - command lines: '$ ' at the beginning of a line denotes a command 
37    - variable input: %input% (works in both commands and screen output) 
38    - otherwise, regular text output from commands will be plain 
39   
40  """ 
41   
42  from pygments.lexer import RegexLexer, bygroups, include 
43  from pygments.token import Name, Text, Generic, Comment 
44   
45   
46 -class ShellExampleLexer(RegexLexer): 
47    name = "ShellExampleLexer" 
48    aliases = "shell-example" 
49    filenames = [] 
50   
51    tokens = { 
52      "root": [ 
53        include("comments"), 
54        include("userinput"), 
55        # switch to state input on '$ ' at the start of the line 
56        (r"^\$ ", Text, "input"), 
57        (r"\s+", Text), 
58        (r"[^#%\s\\]+", Text), 
59        (r"\\", Text), 
60        ], 
61      "input": [ 
62        include("comments"), 
63        include("userinput"), 
64        (r"[^#%\s\\]+", Generic.Strong), 
65        (r"\\\n", Generic.Strong), 
66        (r"\\", Generic.Strong), 
67        # switch to prev state at non-escaped new-line 
68        (r"\n", Text, "#pop"), 
69        (r"\s+", Text), 
70        ], 
71      "comments": [ 
72        (r"#.*\n", Comment.Single), 
73        ], 
74      "userinput": [ 
75        (r"(\\)(%)", bygroups(None, Text)), 
76        (r"(%)([^%]*)(%)", bygroups(None, Name.Variable, None)), 
77        ], 
78      } 
79   
80   
81 -def setup(app): 
82    app.add_lexer("shell-example", ShellExampleLexer()) 
83