pmacs3/highlight2.py

import sys

color_list = []
color_list.extend(['\033[3%dm' % x for x in range(0, 8)])
color_list.extend(['\033[3%d;1m' % x for x in range(0, 8)])
color_list.append('\033[0m')

color_names = [
    'black', 'dred', 'dgreen', 'brown', 'dblue', 'dpurple', 'dcyan', 'lgrey',
    'dgrey', 'lred', 'lgreen', 'yellow', 'lblue', 'lpurple', 'lcyan', 'white',
    'unset',
]

color_dict ={}
for i in range(0, len(color_list)):
    color_dict[color_names[i]] = color_list[i]

class Highlighter:
    def __init__(self, lexer):
        self.lexer = lexer
        self.tokens = []

    def display(self, token_colors={}, debug=False):
        for group in self.tokens:
            for token in group:
                color_name = None
                name_parts = token.name.split('.')
                for i in range(0, len(name_parts)):
                    if '.'.join(name_parts[i:]) in token_colors:
                        color_name = token_colors['.'.join(name_parts[i:])]
                        break
                if color_name is not None:
                    sys.stdout.write(color_dict[color_name])
                elif debug:
                    raise Exception, "no highlighting for %r" % token.name
                else:
                    color_name = 'white'
                    sys.stdout.write(color_dict[color_name])
                sys.stdout.write(token.string)
            sys.stdout.write('\n')

    def highlight(self, lines):
        self.tokens = [[] for l in lines]
        self.lexer.lex(lines, y=0, x=0)
        y = 0
        for token in self.lexer:
            assert y <= token.y, "oh no %d %d" % (y, token.y)
            assert token.y < len(lines), "uh oh %d %d" % (token.y, len(lines))
            self.tokens[token.y].append(token)
            y = token.y

    def update(self):
        pass