summaryrefslogtreecommitdiffstats
path: root/Tools/idle/FormatParagraph.py
diff options
context:
space:
mode:
authorGuido van Rossum <guido@python.org>2003-06-14 00:08:37 (GMT)
committerGuido van Rossum <guido@python.org>2003-06-14 00:08:37 (GMT)
commitecb544e95bc02a59d0acc1e28f3ef5624d399210 (patch)
tree589449882db7543c5562347b1120a8d0e57b219f /Tools/idle/FormatParagraph.py
parent91012fe9b58b9dff2298aad453804023d557447b (diff)
downloadcpython-ecb544e95bc02a59d0acc1e28f3ef5624d399210.zip
cpython-ecb544e95bc02a59d0acc1e28f3ef5624d399210.tar.gz
cpython-ecb544e95bc02a59d0acc1e28f3ef5624d399210.tar.bz2
Get rid of old IDLE. Lib/idlelib rules!
Diffstat (limited to 'Tools/idle/FormatParagraph.py')
-rw-r--r--Tools/idle/FormatParagraph.py154
1 files changed, 0 insertions, 154 deletions
diff --git a/Tools/idle/FormatParagraph.py b/Tools/idle/FormatParagraph.py
deleted file mode 100644
index c1bc769..0000000
--- a/Tools/idle/FormatParagraph.py
+++ /dev/null
@@ -1,154 +0,0 @@
-# Extension to format a paragraph
-
-# Does basic, standard text formatting, and also understands Python
-# comment blocks. Thus, for editing Python source code, this
-# extension is really only suitable for reformatting these comment
-# blocks or triple-quoted strings.
-
-# Known problems with comment reformatting:
-# * If there is a selection marked, and the first line of the
-# selection is not complete, the block will probably not be detected
-# as comments, and will have the normal "text formatting" rules
-# applied.
-# * If a comment block has leading whitespace that mixes tabs and
-# spaces, they will not be considered part of the same block.
-# * Fancy comments, like this bulleted list, arent handled :-)
-
-import re
-
-class FormatParagraph:
-
- menudefs = [
- ('edit', [
- ('Format Paragraph', '<<format-paragraph>>'),
- ])
- ]
-
- keydefs = {
- '<<format-paragraph>>': ['<Alt-q>'],
- }
-
- unix_keydefs = {
- '<<format-paragraph>>': ['<Meta-q>'],
- }
-
- def __init__(self, editwin):
- self.editwin = editwin
-
- def close(self):
- self.editwin = None
-
- def format_paragraph_event(self, event):
- text = self.editwin.text
- first, last = self.editwin.get_selection_indices()
- if first and last:
- data = text.get(first, last)
- comment_header = ''
- else:
- first, last, comment_header, data = \
- find_paragraph(text, text.index("insert"))
- if comment_header:
- # Reformat the comment lines - convert to text sans header.
- lines = data.split("\n")
- lines = map(lambda st, l=len(comment_header): st[l:], lines)
- data = "\n".join(lines)
- # Reformat to 70 chars or a 20 char width, whichever is greater.
- format_width = max(70-len(comment_header), 20)
- newdata = reformat_paragraph(data, format_width)
- # re-split and re-insert the comment header.
- newdata = newdata.split("\n")
- # If the block ends in a \n, we dont want the comment
- # prefix inserted after it. (Im not sure it makes sense to
- # reformat a comment block that isnt made of complete
- # lines, but whatever!) Can't think of a clean soltution,
- # so we hack away
- block_suffix = ""
- if not newdata[-1]:
- block_suffix = "\n"
- newdata = newdata[:-1]
- builder = lambda item, prefix=comment_header: prefix+item
- newdata = '\n'.join(map(builder, newdata)) + block_suffix
- else:
- # Just a normal text format
- newdata = reformat_paragraph(data)
- text.tag_remove("sel", "1.0", "end")
- if newdata != data:
- text.mark_set("insert", first)
- text.undo_block_start()
- text.delete(first, last)
- text.insert(first, newdata)
- text.undo_block_stop()
- else:
- text.mark_set("insert", last)
- text.see("insert")
-
-def find_paragraph(text, mark):
- lineno, col = map(int, mark.split("."))
- line = text.get("%d.0" % lineno, "%d.0 lineend" % lineno)
- while text.compare("%d.0" % lineno, "<", "end") and is_all_white(line):
- lineno = lineno + 1
- line = text.get("%d.0" % lineno, "%d.0 lineend" % lineno)
- first_lineno = lineno
- comment_header = get_comment_header(line)
- comment_header_len = len(comment_header)
- while get_comment_header(line)==comment_header and \
- not is_all_white(line[comment_header_len:]):
- lineno = lineno + 1
- line = text.get("%d.0" % lineno, "%d.0 lineend" % lineno)
- last = "%d.0" % lineno
- # Search back to beginning of paragraph
- lineno = first_lineno - 1
- line = text.get("%d.0" % lineno, "%d.0 lineend" % lineno)
- while lineno > 0 and \
- get_comment_header(line)==comment_header and \
- not is_all_white(line[comment_header_len:]):
- lineno = lineno - 1
- line = text.get("%d.0" % lineno, "%d.0 lineend" % lineno)
- first = "%d.0" % (lineno+1)
- return first, last, comment_header, text.get(first, last)
-
-def reformat_paragraph(data, limit=70):
- lines = data.split("\n")
- i = 0
- n = len(lines)
- while i < n and is_all_white(lines[i]):
- i = i+1
- if i >= n:
- return data
- indent1 = get_indent(lines[i])
- if i+1 < n and not is_all_white(lines[i+1]):
- indent2 = get_indent(lines[i+1])
- else:
- indent2 = indent1
- new = lines[:i]
- partial = indent1
- while i < n and not is_all_white(lines[i]):
- # XXX Should take double space after period (etc.) into account
- words = re.split("(\s+)", lines[i])
- for j in range(0, len(words), 2):
- word = words[j]
- if not word:
- continue # Can happen when line ends in whitespace
- if len((partial + word).expandtabs()) > limit and \
- partial != indent1:
- new.append(partial.rstrip())
- partial = indent2
- partial = partial + word + " "
- if j+1 < len(words) and words[j+1] != " ":
- partial = partial + " "
- i = i+1
- new.append(partial.rstrip())
- # XXX Should reformat remaining paragraphs as well
- new.extend(lines[i:])
- return "\n".join(new)
-
-def is_all_white(line):
- return re.match(r"^\s*$", line) is not None
-
-def get_indent(line):
- return re.match(r"^(\s*)", line).group()
-
-def get_comment_header(line):
- m = re.match(r"^(\s*#*)", line)
- if m is None: return ""
- return m.group(1)