diff options
Diffstat (limited to 'filters/syntax-highlighting.py')
| -rwxr-xr-x | filters/syntax-highlighting.py | 45 |
1 files changed, 42 insertions, 3 deletions
diff --git a/filters/syntax-highlighting.py b/filters/syntax-highlighting.py index e912594..d757e2d 100755 --- a/filters/syntax-highlighting.py +++ b/filters/syntax-highlighting.py @@ -30,11 +30,50 @@ from pygments.lexers import guess_lexer_for_filename from pygments.formatters import HtmlFormatter +# Pygments' token classes, mapped onto the --syn-* custom properties that +# cgit.css defines. The fallbacks are the palette those properties default to, +# so that the output stays readable under a stylesheet without them. +SYNTAX_COLORS = ( + (('k', 'kc', 'kd', 'kn', 'kr'), '--syn-keyword', '#000', + 'font-weight: bold'), + (('kp',), '--syn-keyword', '#000', None), + (('kt',), '--syn-type', '#010181', None), + (('nc', 'nf', 'nn', 'ne'), '--syn-keyword-alt', '#0057ae', None), + (('s', 'sa', 'sb', 'sc', 'dl', 'sd', 's2', 'sh', 'sx', 'sr', 's1', 'ss'), + '--syn-string', '#bf0303', None), + (('se',), '--syn-escape', '#f0f', None), + (('si',), '--syn-interpolation', '#0057ae', None), + (('c', 'ch', 'cm', 'c1', 'cs'), '--syn-comment', '#838183', + 'font-style: italic'), + (('cp', 'cpf'), '--syn-preproc', '#008200', None), + (('m', 'mb', 'mf', 'mh', 'mi', 'mo', 'il'), '--syn-number', '#b07e00', + None), + (('o', 'ow', 'p'), '--syn-operator', '#000', None), + (('err',), '--syn-error', '#bf0303', None), + (('gd',), '--red', 'red', None), + (('gi',), '--green', 'green', None), + (('lineno', 'linenos'), '--syn-linenum', '#555', None), +) + + +def style_defs(prefix='.highlight'): + rules = [] + for classes, prop, fallback, extra in SYNTAX_COLORS: + selector = ', '.join('%s .%s' % (prefix, c) for c in classes) + decls = 'color: var(%s, %s)' % (prop, fallback) + if extra: + decls += '; ' + extra + rules.append('%s { %s }' % (selector, decls)) + rules.append('%s .hll { background-color: var(--syn-mark-bg, #ffb) }' + % prefix) + return '\n'.join(rules) + '\n' + + sys.stdin = io.TextIOWrapper(sys.stdin.buffer, encoding='utf-8', errors='replace') sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8', errors='replace') data = sys.stdin.read() filename = sys.argv[1] -formatter = HtmlFormatter(style='pastie', nobackground=True) +formatter = HtmlFormatter(nobackground=True) try: lexer = guess_lexer_for_filename(filename, data) @@ -48,8 +87,8 @@ except TypeError: lexer = TextLexer() # highlight! :-) -# printout pygments' css definitions as well +# printout the css definitions for pygments' token classes as well sys.stdout.write('<style>') -sys.stdout.write(formatter.get_style_defs('.highlight')) +sys.stdout.write(style_defs('.highlight')) sys.stdout.write('</style>') sys.stdout.write(highlight(data, lexer, formatter, outfile=None)) |