| 1 | import time |
| 2 | import re |
| 3 | import keyword |
| 4 | import __builtin__ |
| 5 | from Tkinter import * |
| 6 | from Delegator import Delegator |
| 7 | from configHandler import idleConf |
| 8 | |
| 9 | DEBUG = False |
| 10 | |
| 11 | def any(name, list): |
| 12 | return "(?P<%s>" % name + "|".join(list) + ")" |
| 13 | |
| 14 | def make_pat(): |
| 15 | kw = r"\b" + any("KEYWORD", keyword.kwlist) + r"\b" |
| 16 | builtinlist = [str(name) for name in dir(__builtin__) |
| 17 | if not name.startswith('_')] |
| 18 | # self.file = file("file") : |
| 19 | # 1st 'file' colorized normal, 2nd as builtin, 3rd as comment |
| 20 | builtin = r"([^.'\"\\]\b|^)" + any("BUILTIN", builtinlist) + r"\b" |
| 21 | comment = any("COMMENT", [r"#[^\n]*"]) |
| 22 | sqstring = r"(\b[rR])?'[^'\\\n]*(\\.[^'\\\n]*)*'?" |
| 23 | dqstring = r'(\b[rR])?"[^"\\\n]*(\\.[^"\\\n]*)*"?' |
| 24 | sq3string = r"(\b[rR])?'''[^'\\]*((\\.|'(?!''))[^'\\]*)*(''')?" |
| 25 | dq3string = r'(\b[rR])?"""[^"\\]*((\\.|"(?!""))[^"\\]*)*(""")?' |
| 26 | string = any("STRING", [sq3string, dq3string, sqstring, dqstring]) |
| 27 | return kw + "|" + builtin + "|" + comment + "|" + string +\ |
| 28 | "|" + any("SYNC", [r"\n"]) |
| 29 | |
| 30 | prog = re.compile(make_pat(), re.S) |
| 31 | idprog = re.compile(r"\s+(\w+)", re.S) |
| 32 | asprog = re.compile(r".*?\b(as)\b", re.S) |
| 33 | |
| 34 | class ColorDelegator(Delegator): |
| 35 | |
| 36 | def __init__(self): |
| 37 | Delegator.__init__(self) |
| 38 | self.prog = prog |
| 39 | self.idprog = idprog |
| 40 | self.asprog = asprog |
| 41 | self.LoadTagDefs() |
| 42 | |
| 43 | def setdelegate(self, delegate): |
| 44 | if self.delegate is not None: |
| 45 | self.unbind("<<toggle-auto-coloring>>") |
| 46 | Delegator.setdelegate(self, delegate) |
| 47 | if delegate is not None: |
| 48 | self.config_colors() |
| 49 | self.bind("<<toggle-auto-coloring>>", self.toggle_colorize_event) |
| 50 | self.notify_range("1.0", "end") |
| 51 | |
| 52 | def config_colors(self): |
| 53 | for tag, cnf in self.tagdefs.items(): |
| 54 | if cnf: |
| 55 | self.tag_configure(tag, **cnf) |
| 56 | self.tag_raise('sel') |
| 57 | |
| 58 | def LoadTagDefs(self): |
| 59 | theme = idleConf.GetOption('main','Theme','name') |
| 60 | self.tagdefs = { |
| 61 | "COMMENT": idleConf.GetHighlight(theme, "comment"), |
| 62 | "KEYWORD": idleConf.GetHighlight(theme, "keyword"), |
| 63 | "BUILTIN": idleConf.GetHighlight(theme, "builtin"), |
| 64 | "STRING": idleConf.GetHighlight(theme, "string"), |
| 65 | "DEFINITION": idleConf.GetHighlight(theme, "definition"), |
| 66 | "SYNC": {'background':None,'foreground':None}, |
| 67 | "TODO": {'background':None,'foreground':None}, |
| 68 | "BREAK": idleConf.GetHighlight(theme, "break"), |
| 69 | "ERROR": idleConf.GetHighlight(theme, "error"), |
| 70 | # The following is used by ReplaceDialog: |
| 71 | "hit": idleConf.GetHighlight(theme, "hit"), |
| 72 | } |
| 73 | |
| 74 | if DEBUG: print 'tagdefs',self.tagdefs |
| 75 | |
| 76 | def insert(self, index, chars, tags=None): |
| 77 | index = self.index(index) |
| 78 | self.delegate.insert(index, chars, tags) |
| 79 | self.notify_range(index, index + "+%dc" % len(chars)) |
| 80 | |
| 81 | def delete(self, index1, index2=None): |
| 82 | index1 = self.index(index1) |
| 83 | self.delegate.delete(index1, index2) |
| 84 | self.notify_range(index1) |
| 85 | |
| 86 | after_id = None |
| 87 | allow_colorizing = True |
| 88 | colorizing = False |
| 89 | |
| 90 | def notify_range(self, index1, index2=None): |
| 91 | self.tag_add("TODO", index1, index2) |
| 92 | if self.after_id: |
| 93 | if DEBUG: print "colorizing already scheduled" |
| 94 | return |
| 95 | if self.colorizing: |
| 96 | self.stop_colorizing = True |
| 97 | if DEBUG: print "stop colorizing" |
| 98 | if self.allow_colorizing: |
| 99 | if DEBUG: print "schedule colorizing" |
| 100 | self.after_id = self.after(1, self.recolorize) |
| 101 | |
| 102 | close_when_done = None # Window to be closed when done colorizing |
| 103 | |
| 104 | def close(self, close_when_done=None): |
| 105 | if self.after_id: |
| 106 | after_id = self.after_id |
| 107 | self.after_id = None |
| 108 | if DEBUG: print "cancel scheduled recolorizer" |
| 109 | self.after_cancel(after_id) |
| 110 | self.allow_colorizing = False |
| 111 | self.stop_colorizing = True |
| 112 | if close_when_done: |
| 113 | if not self.colorizing: |
| 114 | close_when_done.destroy() |
| 115 | else: |
| 116 | self.close_when_done = close_when_done |
| 117 | |
| 118 | def toggle_colorize_event(self, event): |
| 119 | if self.after_id: |
| 120 | after_id = self.after_id |
| 121 | self.after_id = None |
| 122 | if DEBUG: print "cancel scheduled recolorizer" |
| 123 | self.after_cancel(after_id) |
| 124 | if self.allow_colorizing and self.colorizing: |
| 125 | if DEBUG: print "stop colorizing" |
| 126 | self.stop_colorizing = True |
| 127 | self.allow_colorizing = not self.allow_colorizing |
| 128 | if self.allow_colorizing and not self.colorizing: |
| 129 | self.after_id = self.after(1, self.recolorize) |
| 130 | if DEBUG: |
| 131 | print "auto colorizing turned",\ |
| 132 | self.allow_colorizing and "on" or "off" |
| 133 | return "break" |
| 134 | |
| 135 | def recolorize(self): |
| 136 | self.after_id = None |
| 137 | if not self.delegate: |
| 138 | if DEBUG: print "no delegate" |
| 139 | return |
| 140 | if not self.allow_colorizing: |
| 141 | if DEBUG: print "auto colorizing is off" |
| 142 | return |
| 143 | if self.colorizing: |
| 144 | if DEBUG: print "already colorizing" |
| 145 | return |
| 146 | try: |
| 147 | self.stop_colorizing = False |
| 148 | self.colorizing = True |
| 149 | if DEBUG: print "colorizing..." |
| 150 | t0 = time.clock() |
| 151 | self.recolorize_main() |
| 152 | t1 = time.clock() |
| 153 | if DEBUG: print "%.3f seconds" % (t1-t0) |
| 154 | finally: |
| 155 | self.colorizing = False |
| 156 | if self.allow_colorizing and self.tag_nextrange("TODO", "1.0"): |
| 157 | if DEBUG: print "reschedule colorizing" |
| 158 | self.after_id = self.after(1, self.recolorize) |
| 159 | if self.close_when_done: |
| 160 | top = self.close_when_done |
| 161 | self.close_when_done = None |
| 162 | top.destroy() |
| 163 | |
| 164 | def recolorize_main(self): |
| 165 | next = "1.0" |
| 166 | while True: |
| 167 | item = self.tag_nextrange("TODO", next) |
| 168 | if not item: |
| 169 | break |
| 170 | head, tail = item |
| 171 | self.tag_remove("SYNC", head, tail) |
| 172 | item = self.tag_prevrange("SYNC", head) |
| 173 | if item: |
| 174 | head = item[1] |
| 175 | else: |
| 176 | head = "1.0" |
| 177 | |
| 178 | chars = "" |
| 179 | next = head |
| 180 | lines_to_get = 1 |
| 181 | ok = False |
| 182 | while not ok: |
| 183 | mark = next |
| 184 | next = self.index(mark + "+%d lines linestart" % |
| 185 | lines_to_get) |
| 186 | lines_to_get = min(lines_to_get * 2, 100) |
| 187 | ok = "SYNC" in self.tag_names(next + "-1c") |
| 188 | line = self.get(mark, next) |
| 189 | ##print head, "get", mark, next, "->", repr(line) |
| 190 | if not line: |
| 191 | return |
| 192 | for tag in self.tagdefs.keys(): |
| 193 | self.tag_remove(tag, mark, next) |
| 194 | chars = chars + line |
| 195 | m = self.prog.search(chars) |
| 196 | while m: |
| 197 | for key, value in m.groupdict().items(): |
| 198 | if value: |
| 199 | a, b = m.span(key) |
| 200 | self.tag_add(key, |
| 201 | head + "+%dc" % a, |
| 202 | head + "+%dc" % b) |
| 203 | if value in ("def", "class"): |
| 204 | m1 = self.idprog.match(chars, b) |
| 205 | if m1: |
| 206 | a, b = m1.span(1) |
| 207 | self.tag_add("DEFINITION", |
| 208 | head + "+%dc" % a, |
| 209 | head + "+%dc" % b) |
| 210 | elif value == "import": |
| 211 | # color all the "as" words on same line; |
| 212 | # cheap approximation to the truth |
| 213 | while True: |
| 214 | m1 = self.asprog.match(chars, b) |
| 215 | if not m1: |
| 216 | break |
| 217 | a, b = m1.span(1) |
| 218 | self.tag_add("KEYWORD", |
| 219 | head + "+%dc" % a, |
| 220 | head + "+%dc" % b) |
| 221 | m = self.prog.search(chars, m.end()) |
| 222 | if "SYNC" in self.tag_names(next + "-1c"): |
| 223 | head = next |
| 224 | chars = "" |
| 225 | else: |
| 226 | ok = False |
| 227 | if not ok: |
| 228 | # We're in an inconsistent state, and the call to |
| 229 | # update may tell us to stop. It may also change |
| 230 | # the correct value for "next" (since this is a |
| 231 | # line.col string, not a true mark). So leave a |
| 232 | # crumb telling the next invocation to resume here |
| 233 | # in case update tells us to leave. |
| 234 | self.tag_add("TODO", next) |
| 235 | self.update() |
| 236 | if self.stop_colorizing: |
| 237 | if DEBUG: print "colorizing stopped" |
| 238 | return |
| 239 | |
| 240 | |
| 241 | def main(): |
| 242 | from Percolator import Percolator |
| 243 | root = Tk() |
| 244 | root.wm_protocol("WM_DELETE_WINDOW", root.quit) |
| 245 | text = Text(background="white") |
| 246 | text.pack(expand=1, fill="both") |
| 247 | text.focus_set() |
| 248 | p = Percolator(text) |
| 249 | d = ColorDelegator() |
| 250 | p.insertfilter(d) |
| 251 | root.mainloop() |
| 252 | |
| 253 | if __name__ == "__main__": |
| 254 | main() |