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Diffstat (limited to 'lib/python2.7/idlelib/FormatParagraph.py')
| -rw-r--r-- | lib/python2.7/idlelib/FormatParagraph.py | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/lib/python2.7/idlelib/FormatParagraph.py b/lib/python2.7/idlelib/FormatParagraph.py deleted file mode 100644 index 557d8a9..0000000 --- a/lib/python2.7/idlelib/FormatParagraph.py +++ /dev/null @@ -1,150 +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 -from idlelib.configHandler import idleConf - -class FormatParagraph: - - menudefs = [ - ('format', [ # /s/edit/format dscherer@cmu.edu - ('Format Paragraph', '<<format-paragraph>>'), - ]) - ] - - def __init__(self, editwin): - self.editwin = editwin - - def close(self): - self.editwin = None - - def format_paragraph_event(self, event): - maxformatwidth = int(idleConf.GetOption('main','FormatParagraph', - 'paragraph', type='int')) - 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 maxformatwidth chars or a 20 char width, whichever is greater. - format_width = max(maxformatwidth - 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 solution, - # 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, maxformatwidth) - 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") - return "break" - -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): - 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) |