diff options
Diffstat (limited to 'pygments/lexers/math.py')
| -rw-r--r-- | pygments/lexers/math.py | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/pygments/lexers/math.py b/pygments/lexers/math.py index 5d732519..06221489 100644 --- a/pygments/lexers/math.py +++ b/pygments/lexers/math.py @@ -21,7 +21,8 @@ from pygments.lexers import _scilab_builtins __all__ = ['JuliaLexer', 'JuliaConsoleLexer', 'MuPADLexer', 'MatlabLexer', 'MatlabSessionLexer', 'OctaveLexer', 'ScilabLexer', 'NumPyLexer', - 'RConsoleLexer', 'SLexer', 'JagsLexer', 'BugsLexer', 'StanLexer'] + 'RConsoleLexer', 'SLexer', 'JagsLexer', 'BugsLexer', 'StanLexer', + 'RdLexer'] class JuliaLexer(RegexLexer): @@ -1383,3 +1384,42 @@ class StanLexer(RegexLexer): else: return 0.0 + + +class RdLexer(RegexLexer): + """ Pygments Lexer for R documentation (Rd) files + + This is a very minimal implementation, highlighting little more + than the macros. A description of Rd syntax is found in `Writing R + Extensions <http://cran.r-project.org/doc/manuals/R-exts.html>`_ + and `Parsing Rd files <developer.r-project.org/parseRd.pdf>`_. + + """ + name = 'Rd' + aliases = ['rd'] + filenames = ['*.Rd'] + mimetypes = ['text/x-r-doc'] + + + # To account for verbatim / LaTeX-like / and R-like areas + # would require parsing. + tokens = { + 'root' : [ + # catch escaped brackets and percent sign + (r'\\[\\{}%]', String.Escape), + # comments + (r'%.*$', Comment), + # special macros with no arguments + (r'\\(?:cr|l?dots|R|tab)\b', Keyword.Constant), + # macros + (r'\\[a-zA-Z]+\b', Keyword), + # special preprocessor macros + (r'^\s*#(?:ifn?def|endif).*\b', Comment.Preproc), + # Non escaped brackets + (r'[{}]', Name.Builtin), + # everything else + (r'.', Text), + ] + } + + |