87 lines
2.3 KiB
Python
87 lines
2.3 KiB
Python
import re
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import regex
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from point2 import Point
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bg_color = 'black'
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selected_color = 'magenta'
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unselected_color = 'yellow'
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class IllegalPatternError(Exception):
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pass
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def escape_literal(s):
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return regex.meta_chars.sub(r'\\\1', s)
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def find_ranges(s, w, start=None, end=None):
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if not w.buffer.lines:
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return []
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if start is None:
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(x, y) = (0, 0)
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else:
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(x, y) = start.xy()
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if end is None:
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(x2, y2) = (len(w.buffer.lines[-1]) - 1, len(w.buffer.lines) - 1)
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else:
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(x2, y2) = end.xy()
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#s2 = escape_literal(s)
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#r = re.compile(s2, re.IGNORECASE)
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r = re.compile(s, re.IGNORECASE)
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ranges = []
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while y <= y2:
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if y == y2:
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limit = x2
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else:
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limit = len(w.buffer.lines[y]) - 1
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for m in r.finditer(w.buffer.lines[y], x, limit):
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if len(m.group(0)) == 0:
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raise IllegalPatternError, "zero-width match found for: %r" % s
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ranges.append([Point(m.start(), y), Point(m.end(), y), bg_color, unselected_color])
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x = 0
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y += 1
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return ranges
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def find(s, w, move=False, direction='next', start=None, end=None):
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app = w.application
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c = w.logical_cursor()
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newc = None
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ranges = find_ranges(s, w, start, end)
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indices = range(0, len(ranges))
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(x, y) = c.xy()
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if move:
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offset = 1
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else:
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offset = 0
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if direction == 'next':
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limit = Point(x - 1 + offset, y)
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else:
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limit = Point(x + len(s) + 1 - offset, y)
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indices.reverse()
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for i in indices:
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if ((direction == 'next' and ranges[i][0] > limit) or
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(direction != 'next' and ranges[i][1] < limit)):
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ranges[i][3] = selected_color
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newc = (ranges[i][0], ranges[i][1])
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break
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if ranges and not newc:
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return None
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app.clear_highlighted_ranges()
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if newc:
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w.goto(newc[0])
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for (p1, p2, fg, bg) in ranges:
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if p1 < w.first:
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continue
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elif p2 > w.last:
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break
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app.add_highlighted_range(w, p1, p2, fg, bg)
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return newc
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def find_previous(s, w, move=False, start=None, end=None):
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return find(s, w, move, 'previous', start, end)
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def find_next(s, w, move=False, start=None, end=None):
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return find(s, w, move, 'next', start, end)
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