[svn] added rich text formatter (formatter for one of the worst file formats ever created)

1 files changed, 121 insertions, 0 deletions

diff --git a/pygments/formatters/rtf.py b/pygments/formatters/rtf.py
new file mode 100644
index 00000000..70c12e66
--- /dev/null
+++ b/pygments/formatters/rtf.py
@@ -0,0 +1,121 @@
+# -*- coding: utf-8 -*-
+"""
+    pygments.formatters.rtf
+    ~~~~~~~~~~~~~~~~~~~~~~~
+
+    A formatter that generates RTF files.
+
+    :copyright: 2006 by Armin Ronacher.
+    :license: BSD, see LICENSE for more details.
+"""
+import cStringIO
+
+from pygments.formatter import Formatter
+from pygments.token import Token
+from pygments.util import get_bool_opt, get_int_opt
+
+
+__all__ = ['RtfFormatter']
+
+
+class RtfFormatter(Formatter):
+
+    def __init__(self, **options):
+        """
+        Additional options accepted:
+
+        ``fontface``
+            Name of the font used. Could for example be ``'Courier New'``
+            to further specify the default which is ``'\fmodern'``. The RTF
+            specification claims that ``\fmodern`` are "Fixed-pitch serif
+            and sans serif fonts". Hope every RTF implementation thinks
+            the same about modern...
+
+
+        """
+        Formatter.__init__(self, **options)
+        self.fontface = options.get('fontface') or ''
+
+    def _escape(self, text):
+        return text.replace('\\', '\\\\') \
+                   .replace('{', '\\{') \
+                   .replace('}', '\\}')
+
+    def _escape_text(self, text):
+        # empty strings, should give a small performance improvment
+        if not text:
+            return ''
+
+        # escape text
+        text = self._escape(text)
+
+        # byte strings
+        if isinstance(text, str):
+            for c in xrange(128, 256):
+                text = text.replace(chr(c), '\\\'%x' % c)
+        
+        # unicode strings
+        elif isinstance(text, unicode):
+            buf = []
+            for c in text:
+                o = ord(c)
+                if o > 128:
+                    ansic = c.encode('iso-8859-1', 'ignore') or '?'
+                    if ord(ansic) > 128:
+                        ansic = '\\\'%x' % ord(ansic)
+                    buf.append(r'\ud{\u%d%s}' % (o, ansic))
+                else:
+                    buf.append(str(c))
+            text = ''.join(buf)
+
+        return text.replace('\n', '\\par\n')
+
+    def format(self, tokensource, outfile):
+        outfile.write(r'{\rtf1\ansi\deff0'
+                      r'{\fonttbl{\f0\fmodern\fprq1\fcharset0%s;}}{\colortbl;' %
+                      (self.fontface and ' ' + self._escape(self.fontface) or ''))
+        
+        # convert colors and save them in a mapping to access them later.
+        color_mapping = {}
+        offset = 1
+        for _, style in self.style:
+            for color in style['color'], style['bgcolor'], style['border']:
+                if not color or color in color_mapping:
+                    continue
+                color_mapping[color] = offset
+                outfile.write(r'\red%d\green%d\blue%d;' % (
+                    int(color[0:2], 16),
+                    int(color[2:4], 16),
+                    int(color[4:6], 16)
+                ))
+                offset += 1
+        outfile.write(r'}\f0')
+
+        # highlight stream
+        for ttype, value in tokensource:
+            try:
+                style = self.style.style_for_token(ttype)
+            except KeyError:
+                start = ''
+            else:
+                buf = []
+                if style['bgcolor']:
+                    buf.append(r'\cb%d' % color_mapping[style['bgcolor']])
+                if style['color']:
+                    buf.append(r'\cf%d' % color_mapping[style['color']])
+                if style['bold']:
+                    buf.append(r'\b')
+                if style['italic']:
+                    buf.append(r'\i')
+                if style['underline']:
+                    buf.append(r'\ul')
+                if style['border']:
+                    buf.append(r'\chbrdr\chcfpat%d' % color_mapping[style['border']])
+                start = ''.join(buf)
+            if start:
+                outfile.write('{%s ' % start)
+            outfile.write(self._escape_text(value))
+            if start:
+                outfile.write('}')
+
+        outfile.write('}')