comparison hgext/highlight.py @ 5533:6cf7d7fe7d3d

highlight: clean up coding style a little

5532:40a06e39f010

from pygments import highlight
from pygments.util import ClassNotFound
from pygments.lexers import guess_lexer_for_filename, TextLexer
from pygments.formatters import HtmlFormatter

SYNTAX_CSS = '\n<link rel="stylesheet" href="#staticurl#highlight.css" type="text/css" />'

class StripedHtmlFormatter(HtmlFormatter):

    def __init__(self, stripecount, *args, **kwargs):
        super(StripedHtmlFormatter, self).__init__(*args, **kwargs)
        self.stripecount = stripecount
        
    def wrap(self, source, outfile):
        yield 0, "<div class='highlight'>"
        yield 0, "<pre>"
        parity = paritygen(self.stripecount)

        for n, i in source:
            if n == 1:
                i = "<div class='parity%s'>%s</div>" % \
                (parity.next(), i)
            yield n, i

        yield 0, "</pre>"
        yield 0, "</div>"


def pygments_format(filename, rawtext,
                    forcetext=False,
                    stripecount=1,
                    style='colorful'):

    if not forcetext:
        try:
            lexer = guess_lexer_for_filename(filename, rawtext)
        except ClassNotFound:
            lexer = TextLexer()
    else:
        lexer = TextLexer()
        
    formatter = StripedHtmlFormatter(stripecount,
                                     style=style,
                                     linenos='inline')

    return highlight(rawtext, lexer, formatter)


"""
This reimplements hgweb.filerevision to use syntax highlighting
"""
def filerevision_pygments(self, fctx):
    filename = fctx.path()

    rawtext = fctx.data()
    text = rawtext

        forcetext = True
    else:
        mt = mt or 'text/plain'
        forcetext = False


    def lines(text):
        for line in text.splitlines(True):
            yield {"line": line}

    style = self.config("web", "pygments_style", "colorful")

    text_formatted = lines(pygments_format(filename, text,
                                           forcetext=forcetext,
                                           stripecount=self.stripecount,
                                           style=style))

    # override per-line template   
    self.t.cache['fileline'] = '#line#'

    # append a <link ...> to the syntax highlighting css
    old_header = ''.join(self.t('header'))
    if SYNTAX_CSS not in old_header:
        new_header =  old_header + SYNTAX_CSS
        self.t.cache['header'] = new_header

    
    yield self.t("filerevision",
                 file=filename,
                 path=hgweb_mod._up(filename), # fixme: make public
                 text=text_formatted,
                 raw=rawtext,

                 child=self.siblings(fctx.children()),
                 rename=self.renamelink(fctx.filelog(),
                                        fctx.filenode()),
                 permissions=fctx.manifest().flags(filename))

# monkeypatch in the new version
# should be safer than overriding the method in a derived class
# and then patching the class
hgweb.filerevision = filerevision_pygments

5533:6cf7d7fe7d3d

from pygments import highlight
from pygments.util import ClassNotFound
from pygments.lexers import guess_lexer_for_filename, TextLexer
from pygments.formatters import HtmlFormatter

SYNTAX_CSS = ('\n<link rel="stylesheet" href="#staticurl#highlight.css" '
              'type="text/css" />')

class StripedHtmlFormatter(HtmlFormatter):
    def __init__(self, stripecount, *args, **kwargs):
        super(StripedHtmlFormatter, self).__init__(*args, **kwargs)
        self.stripecount = stripecount

    def wrap(self, source, outfile):
        yield 0, "<div class='highlight'>"
        yield 0, "<pre>"
        parity = paritygen(self.stripecount)

        for n, i in source:
            if n == 1:
                i = "<div class='parity%s'>%s</div>" % (parity.next(), i)
            yield n, i

        yield 0, "</pre>"
        yield 0, "</div>"


def pygments_format(filename, rawtext, forcetext=False, stripecount=1,
                    style='colorful'):
    if not forcetext:
        try:
            lexer = guess_lexer_for_filename(filename, rawtext)
        except ClassNotFound:
            lexer = TextLexer()
    else:
        lexer = TextLexer()

    formatter = StripedHtmlFormatter(stripecount, style=style,
                                     linenos='inline')

    return highlight(rawtext, lexer, formatter)


def filerevision_pygments(self, fctx):
    """Reimplement hgweb.filerevision to use syntax highlighting"""
    filename = fctx.path()

    rawtext = fctx.data()
    text = rawtext

        forcetext = True
    else:
        mt = mt or 'text/plain'
        forcetext = False

    def lines(text):
        for line in text.splitlines(True):
            yield {"line": line}

    style = self.config("web", "pygments_style", "colorful")

    text_formatted = lines(pygments_format(filename, text,
                                           forcetext=forcetext,
                                           stripecount=self.stripecount,
                                           style=style))

    # override per-line template
    self.t.cache['fileline'] = '#line#'

    # append a <link ...> to the syntax highlighting css
    old_header = ''.join(self.t('header'))
    if SYNTAX_CSS not in old_header:
        new_header =  old_header + SYNTAX_CSS
        self.t.cache['header'] = new_header

    yield self.t("filerevision",
                 file=filename,
                 path=hgweb_mod._up(filename), # fixme: make public
                 text=text_formatted,
                 raw=rawtext,

                 child=self.siblings(fctx.children()),
                 rename=self.renamelink(fctx.filelog(),
                                        fctx.filenode()),
                 permissions=fctx.manifest().flags(filename))


# monkeypatch in the new version
# should be safer than overriding the method in a derived class
# and then patching the class
hgweb.filerevision = filerevision_pygments