245 lines
7.6 KiB
Python
245 lines
7.6 KiB
Python
import string
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from Tkinter import TclError
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###$ event <<newline-and-indent>>
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###$ win <Key-Return>
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###$ win <KP_Enter>
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###$ unix <Key-Return>
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###$ unix <KP_Enter>
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###$ event <<indent-region>>
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###$ win <Control-bracketright>
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###$ unix <Alt-bracketright>
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###$ unix <Control-bracketright>
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###$ event <<dedent-region>>
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###$ win <Control-bracketleft>
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###$ unix <Alt-bracketleft>
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###$ unix <Control-bracketleft>
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###$ event <<comment-region>>
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###$ win <Alt-Key-3>
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###$ unix <Alt-Key-3>
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###$ event <<uncomment-region>>
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###$ win <Alt-Key-4>
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###$ unix <Alt-Key-4>
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###$ event <<tabify-region>>
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###$ win <Alt-Key-5>
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###$ unix <Alt-Key-5>
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###$ event <<untabify-region>>
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###$ win <Alt-Key-6>
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###$ unix <Alt-Key-6>
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class AutoIndent:
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menudefs = [
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('edit', [
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None,
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('_Indent region', '<<indent-region>>'),
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('_Dedent region', '<<dedent-region>>'),
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('Comment _out region', '<<comment-region>>'),
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('U_ncomment region', '<<uncomment-region>>'),
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('Tabify region', '<<tabify-region>>'),
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('Untabify region', '<<untabify-region>>'),
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]),
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]
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keydefs = {
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'<<smart-backspace>>': ['<Key-BackSpace>'],
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'<<newline-and-indent>>': ['<Key-Return>', '<KP_Enter>'],
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}
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windows_keydefs = {
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'<<indent-region>>': ['<Control-bracketright>'],
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'<<dedent-region>>': ['<Control-bracketleft>'],
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'<<comment-region>>': ['<Alt-Key-3>'],
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'<<uncomment-region>>': ['<Alt-Key-4>'],
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'<<tabify-region>>': ['<Alt-Key-5>'],
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'<<untabify-region>>': ['<Alt-Key-6>'],
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}
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unix_keydefs = {
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'<<indent-region>>': ['<Alt-bracketright>',
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'<Meta-bracketright>',
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'<Control-bracketright>'],
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'<<dedent-region>>': ['<Alt-bracketleft>',
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'<Meta-bracketleft>',
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'<Control-bracketleft>'],
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'<<comment-region>>': ['<Alt-Key-3>', '<Meta-Key-3>'],
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'<<uncomment-region>>': ['<Alt-Key-4>', '<Meta-Key-4>'],
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'<<tabify-region>>': ['<Alt-Key-5>', '<Meta-Key-5>'],
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'<<untabify-region>>': ['<Alt-Key-6>', '<Meta-Key-6>'],
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}
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prefertabs = 0
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spaceindent = 4*" "
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def __init__(self, editwin):
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self.text = editwin.text
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def config(self, **options):
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for key, value in options.items():
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if key == 'prefertabs':
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self.prefertabs = value
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elif key == 'spaceindent':
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self.spaceindent = value
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else:
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raise KeyError, "bad option name: %s" % `key`
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def smart_backspace_event(self, event):
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text = self.text
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try:
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first = text.index("sel.first")
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last = text.index("sel.last")
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except TclError:
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first = last = None
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if first and last:
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text.delete(first, last)
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text.mark_set("insert", first)
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return "break"
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# After Tim Peters
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ndelete = 1
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chars = text.get("insert linestart", "insert")
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i = 0
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n = len(chars)
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while i < n and chars[i] in " \t":
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i = i+1
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if i == n and chars[-4:] == " ":
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ndelete = 4
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text.delete("insert - %d chars" % ndelete, "insert")
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return "break"
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def newline_and_indent_event(self, event):
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text = self.text
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try:
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first = text.index("sel.first")
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last = text.index("sel.last")
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except TclError:
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first = last = None
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if first and last:
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text.delete(first, last)
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text.mark_set("insert", first)
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line = text.get("insert linestart", "insert")
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i, n = 0, len(line)
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while i < n and line[i] in " \t":
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i = i+1
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indent = line[:i]
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lastchar = text.get("insert -1c")
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if lastchar == ":":
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if not indent:
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if self.prefertabs:
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indent = "\t"
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else:
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indent = self.spaceindent
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elif indent[-1] == "\t":
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indent = indent + "\t"
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else:
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indent = indent + self.spaceindent
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text.insert("insert", "\n" + indent)
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text.see("insert")
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return "break"
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auto_indent = newline_and_indent_event
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def indent_region_event(self, event):
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head, tail, chars, lines = self.get_region()
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for pos in range(len(lines)):
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line = lines[pos]
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if line:
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i, n = 0, len(line)
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while i < n and line[i] in " \t":
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i = i+1
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line = line[:i] + " " + line[i:]
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lines[pos] = line
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self.set_region(head, tail, chars, lines)
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return "break"
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def dedent_region_event(self, event):
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head, tail, chars, lines = self.get_region()
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for pos in range(len(lines)):
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line = lines[pos]
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if line:
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i, n = 0, len(line)
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while i < n and line[i] in " \t":
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i = i+1
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indent, line = line[:i], line[i:]
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if indent:
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if indent == "\t" or indent[-2:] == "\t\t":
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indent = indent[:-1] + " "
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elif indent[-4:] == " ":
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indent = indent[:-4]
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else:
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indent = string.expandtabs(indent, 8)
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indent = indent[:-4]
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line = indent + line
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lines[pos] = line
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self.set_region(head, tail, chars, lines)
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return "break"
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def comment_region_event(self, event):
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head, tail, chars, lines = self.get_region()
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for pos in range(len(lines)):
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line = lines[pos]
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if not line:
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continue
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lines[pos] = '##' + line
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self.set_region(head, tail, chars, lines)
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def uncomment_region_event(self, event):
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head, tail, chars, lines = self.get_region()
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for pos in range(len(lines)):
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line = lines[pos]
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if not line:
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continue
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if line[:2] == '##':
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line = line[2:]
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elif line[:1] == '#':
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line = line[1:]
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lines[pos] = line
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self.set_region(head, tail, chars, lines)
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def tabify_region_event(self, event):
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head, tail, chars, lines = self.get_region()
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lines = map(tabify, lines)
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self.set_region(head, tail, chars, lines)
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def untabify_region_event(self, event):
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head, tail, chars, lines = self.get_region()
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lines = map(string.expandtabs, lines)
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self.set_region(head, tail, chars, lines)
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def get_region(self):
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text = self.text
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head = text.index("sel.first linestart")
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tail = text.index("sel.last -1c lineend +1c")
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if not (head and tail):
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head = text.index("insert linestart")
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tail = text.index("insert lineend +1c")
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chars = text.get(head, tail)
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lines = string.split(chars, "\n")
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return head, tail, chars, lines
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def set_region(self, head, tail, chars, lines):
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text = self.text
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newchars = string.join(lines, "\n")
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if newchars == chars:
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text.bell()
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return
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text.tag_remove("sel", "1.0", "end")
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text.mark_set("insert", head)
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text.delete(head, tail)
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text.insert(head, newchars)
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text.tag_add("sel", head, "insert")
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def tabify(line, tabsize=8):
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spaces = tabsize * ' '
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for i in range(0, len(line), tabsize):
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if line[i:i+tabsize] != spaces:
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break
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else:
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i = len(line)
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return '\t' * (i/tabsize) + line[i:]
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