Changed how xterm256->HTML regexes are compiled at start-time; the regex compilation previously caused a startup delay of up to 15 seconds. After the rework, this time is down to 0.004 seconds.
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Griatch
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1 changed files with 40 additions and 45 deletions
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@ -15,12 +15,14 @@ import re
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import cgi
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from .ansi import *
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import time
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t0 = time.time()
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# All xterm256 RGB equivalents
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XTERM256_FG = "\033[38;5;%sm"
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XTERM256_BG = "\033[48;5;%sm"
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_RE_XTERM256 = re.compile("(\033\[(?:38|48);5;[0-9]{3}m)")
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class TextToHTMLparser(object):
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"""
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@ -53,48 +55,37 @@ class TextToHTMLparser(object):
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] + [("color-%03i" % (i+16), XTERM256_FG % ("%03i" % (i+16))) for i in xrange(240)]
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colorback = [
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('bgcolor-000', ANSI_BACK_BLACK), # pure black
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('bgcolor-001', ANSI_BACK_RED),
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('bgcolor-002', ANSI_BACK_GREEN),
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('bgcolor-003', ANSI_BACK_YELLOW),
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('bgcolor-004', ANSI_BACK_BLUE),
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('bgcolor-005', ANSI_BACK_MAGENTA),
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('bgcolor-006', ANSI_BACK_CYAN),
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('bgcolor-007', ANSI_BACK_WHITE), # light grey
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('bgcolor-000', unhilite + ANSI_BLACK), # pure black
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('bgcolor-001', unhilite + ANSI_RED),
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('bgcolor-002', unhilite + ANSI_GREEN),
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('bgcolor-003', unhilite + ANSI_YELLOW),
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('bgcolor-004', unhilite + ANSI_BLUE),
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('bgcolor-005', unhilite + ANSI_MAGENTA),
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('bgcolor-006', unhilite + ANSI_CYAN),
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('bgcolor-007', unhilite + ANSI_WHITE), # light grey
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('bgcolor-008', hilite + ANSI_BLACK), # dark grey
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('bgcolor-009', hilite + ANSI_RED),
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('bgcolor-010', hilite + ANSI_GREEN),
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('bgcolor-011', hilite + ANSI_YELLOW),
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('bgcolor-012', hilite + ANSI_BLUE),
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('bgcolor-013', hilite + ANSI_MAGENTA),
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('bgcolor-014', hilite + ANSI_CYAN),
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('bgcolor-015', hilite + ANSI_WHITE), # pure white
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('bgcolor-000', unhilite + ANSI_BACK_BLACK), # pure black
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('bgcolor-001', unhilite + ANSI_BACK_RED),
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('bgcolor-002', unhilite + ANSI_BACK_GREEN),
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('bgcolor-003', unhilite + ANSI_BACK_YELLOW),
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('bgcolor-004', unhilite + ANSI_BACK_BLUE),
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('bgcolor-005', unhilite + ANSI_BACK_MAGENTA),
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('bgcolor-006', unhilite + ANSI_BACK_CYAN),
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('bgcolor-007', unhilite + ANSI_BACK_WHITE), # light grey
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('bgcolor-008', hilite + ANSI_BACK_BLACK), # dark grey
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('bgcolor-009', hilite + ANSI_BACK_RED),
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('bgcolor-010', hilite + ANSI_BACK_GREEN),
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('bgcolor-011', hilite + ANSI_BACK_YELLOW),
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('bgcolor-012', hilite + ANSI_BACK_BLUE),
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('bgcolor-013', hilite + ANSI_BACK_MAGENTA),
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('bgcolor-014', hilite + ANSI_BACK_CYAN),
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('bgcolor-015', hilite + ANSI_BACK_WHITE), # pure white
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] + [("bgcolor-%03i" % (i+16), XTERM256_BG % ("%03i" % (i+16))) for i in range(240)]
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# make sure to escape [
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colorcodes = [(c, code.replace("[", r"\[")) for c, code in colorcodes]
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colorback = [(c, code.replace("[", r"\[")) for c, code in colorback]
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#colorcodes = [(c, code.replace("[", r"\[")) for c, code in colorcodes]
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#colorback = [(c, code.replace("[", r"\[")) for c, code in colorback]
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fg_colormap = dict((code, clr) for clr, code in colorcodes)
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bg_colormap = dict((code, clr) for clr, code in colorback)
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# create stop markers
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fgstop = [("", c.replace("[", r"\[")) for c in (normal, hilite, underline)]
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bgstop = [("", c.replace("[", r"\[")) for c in (normal,)]
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fgstop = "|".join(co[1] for co in colorcodes + fgstop + [("", "$")])
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bgstop = "|".join(co[1] for co in colorback + bgstop + [("", "$")])
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fgstop = "(?:\033\[1m|\033\[22m)*\033\[3.*?m|\033\[0m|$"
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bgstop = "(?:\033\[1m|\033\[22m)*\033\[4.*?m|\033\[0m|$"
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# pre-compile regexes
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#re_fgs = "|".join(["%s.*?(?=%s)" % (code, fgstop) for cname, code in colorcodes])
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#re_bgs = "|".join(["%s.*?(?=%s)" % (code, bgstop) for cname, code in colorback])
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#re_clrs = re_fgs + "|" + re_bgs
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re_fgs = [(cname, re.compile("(?:%s)(.*?)(?=%s)" % (code, fgstop))) for cname, code in colorcodes]
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re_bgs = [(cname, re.compile("(?:%s)(.*?)(?=%s)" % (code, bgstop))) for cname, code in colorback]
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# extract color markers, tagging the start marker and the text marked
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re_fgs = re.compile("((?:\033\[1m|\033\[22m)*\033\[3.*?m)(.*?)(?=" + fgstop + ")")
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re_bgs = re.compile("((?:\033\[1m|\033\[22m)*\033\[4.*?m)(.*?)(?=" + bgstop + ")")
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re_normal = re.compile(normal.replace("[", r"\["))
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re_hilite = re.compile("(?:%s)(.*)(?=%s)" % (hilite.replace("[", r"\["), fgstop))
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@ -103,9 +94,13 @@ class TextToHTMLparser(object):
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re_url = re.compile(r'((?:ftp|www|https?)\W+(?:(?!\.(?:\s|$)|&\w+;)[^"\',;$*^\\(){}<>\[\]\s])+)(\.(?:\s|$)|&\w+;|)')
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re_mxplink = re.compile(r'\|lc(.*?)\|lt(.*?)\|le', re.DOTALL)
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def _sub_clr(self, colormatch):
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colormatch.group()
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return
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def _sub_fg(self, colormatch):
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code, text = colormatch.groups()
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return r'''<span class="%s">%s</span>''' % (self.fg_colormap.get(code, code), text)
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def _sub_bg(self, colormatch):
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code, text = colormatch.groups()
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return r'''<span class="%s">%s</span>''' % (self.bg_colormap.get(code, code), text)
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def re_color(self, text):
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"""
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@ -119,10 +114,8 @@ class TextToHTMLparser(object):
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text (str): Re-colored text.
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"""
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for colorname, regex in self.re_fgs:
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text = regex.sub(r'''<span class="%s">\1</span>''' % colorname, text)
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for bgname, regex in self.re_bgs:
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text = regex.sub(r'''<span class="%s">\1</span>''' % bgname, text)
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text = self.re_fgs.sub(self._sub_fg, text)
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text = self.re_bgs.sub(self._sub_bg, text)
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text = self.re_normal.sub("", text)
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return text
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@ -289,3 +282,5 @@ def parse_html(string, strip_ansi=False, parser=HTML_PARSER):
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Parses a string, replace ANSI markup with html
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"""
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return parser.parse(string, strip_ansi=strip_ansi)
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print "t0-t1=", time.time() - t0
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