diff options
Diffstat (limited to 'Lib/dos_8x3/formatte.py')
-rwxr-xr-x | Lib/dos_8x3/formatte.py | 404 |
1 files changed, 0 insertions, 404 deletions
diff --git a/Lib/dos_8x3/formatte.py b/Lib/dos_8x3/formatte.py deleted file mode 100755 index 25dbe73..0000000 --- a/Lib/dos_8x3/formatte.py +++ /dev/null @@ -1,404 +0,0 @@ -import regex -import regsub -import string -import sys -from types import StringType - - -AS_IS = None - - -class NullFormatter: - - def __init__(self, writer=None): - if not writer: - writer = NullWriter() - self.writer = writer - def end_paragraph(self, blankline): pass - def add_line_break(self): pass - def add_hor_rule(self, *args, **kw): pass - def add_label_data(self, format, counter, blankline=None): pass - def add_flowing_data(self, data): pass - def add_literal_data(self, data): pass - def flush_softspace(self): pass - def push_alignment(self, align): pass - def pop_alignment(self): pass - def push_font(self, x): pass - def pop_font(self): pass - def push_margin(self, margin): pass - def pop_margin(self): pass - def set_spacing(self, spacing): pass - def push_style(self, *styles): pass - def pop_style(self, n=1): pass - def assert_line_data(self, flag=1): pass - - -class AbstractFormatter: - - # Space handling policy: blank spaces at the boundary between elements - # are handled by the outermost context. "Literal" data is not checked - # to determine context, so spaces in literal data are handled directly - # in all circumstances. - - def __init__(self, writer): - self.writer = writer # Output device - self.align = None # Current alignment - self.align_stack = [] # Alignment stack - self.font_stack = [] # Font state - self.margin_stack = [] # Margin state - self.spacing = None # Vertical spacing state - self.style_stack = [] # Other state, e.g. color - self.nospace = 1 # Should leading space be suppressed - self.softspace = 0 # Should a space be inserted - self.para_end = 1 # Just ended a paragraph - self.parskip = 0 # Skipped space between paragraphs? - self.hard_break = 1 # Have a hard break - self.have_label = 0 - - def end_paragraph(self, blankline): - if not self.hard_break: - self.writer.send_line_break() - self.have_label = 0 - if self.parskip < blankline and not self.have_label: - self.writer.send_paragraph(blankline - self.parskip) - self.parskip = blankline - self.have_label = 0 - self.hard_break = self.nospace = self.para_end = 1 - self.softspace = 0 - - def add_line_break(self): - if not (self.hard_break or self.para_end): - self.writer.send_line_break() - self.have_label = self.parskip = 0 - self.hard_break = self.nospace = 1 - self.softspace = 0 - - def add_hor_rule(self, *args, **kw): - if not self.hard_break: - self.writer.send_line_break() - apply(self.writer.send_hor_rule, args, kw) - self.hard_break = self.nospace = 1 - self.have_label = self.para_end = self.softspace = self.parskip = 0 - - def add_label_data(self, format, counter, blankline = None): - if self.have_label or not self.hard_break: - self.writer.send_line_break() - if not self.para_end: - self.writer.send_paragraph((blankline and 1) or 0) - if type(format) is StringType: - self.writer.send_label_data(self.format_counter(format, counter)) - else: - self.writer.send_label_data(format) - self.nospace = self.have_label = self.hard_break = self.para_end = 1 - self.softspace = self.parskip = 0 - - def format_counter(self, format, counter): - label = '' - for c in format: - try: - if c == '1': - label = label + ('%d' % counter) - elif c in 'aA': - if counter > 0: - label = label + self.format_letter(c, counter) - elif c in 'iI': - if counter > 0: - label = label + self.format_roman(c, counter) - else: - label = label + c - except: - label = label + c - return label - - def format_letter(self, case, counter): - label = '' - while counter > 0: - counter, x = divmod(counter-1, 26) - s = chr(ord(case) + x) - label = s + label - return label - - def format_roman(self, case, counter): - ones = ['i', 'x', 'c', 'm'] - fives = ['v', 'l', 'd'] - label, index = '', 0 - # This will die of IndexError when counter is too big - while counter > 0: - counter, x = divmod(counter, 10) - if x == 9: - label = ones[index] + ones[index+1] + label - elif x == 4: - label = ones[index] + fives[index] + label - else: - if x >= 5: - s = fives[index] - x = x-5 - else: - s = '' - s = s + ones[index]*x - label = s + label - index = index + 1 - if case == 'I': - return string.upper(label) - return label - - def add_flowing_data(self, data, - # These are only here to load them into locals: - whitespace = string.whitespace, - join = string.join, split = string.split): - if not data: return - # The following looks a bit convoluted but is a great improvement over - # data = regsub.gsub('[' + string.whitespace + ']+', ' ', data) - prespace = data[:1] in whitespace - postspace = data[-1:] in whitespace - data = join(split(data)) - if self.nospace and not data: - return - elif prespace or self.softspace: - if not data: - if not self.nospace: - self.softspace = 1 - self.parskip = 0 - return - if not self.nospace: - data = ' ' + data - self.hard_break = self.nospace = self.para_end = \ - self.parskip = self.have_label = 0 - self.softspace = postspace - self.writer.send_flowing_data(data) - - def add_literal_data(self, data): - if not data: return - if self.softspace: - self.writer.send_flowing_data(" ") - self.hard_break = data[-1:] == '\n' - self.nospace = self.para_end = self.softspace = \ - self.parskip = self.have_label = 0 - self.writer.send_literal_data(data) - - def flush_softspace(self): - if self.softspace: - self.hard_break = self.para_end = self.parskip = \ - self.have_label = self.softspace = 0 - self.nospace = 1 - self.writer.send_flowing_data(' ') - - def push_alignment(self, align): - if align and align != self.align: - self.writer.new_alignment(align) - self.align = align - self.align_stack.append(align) - else: - self.align_stack.append(self.align) - - def pop_alignment(self): - if self.align_stack: - del self.align_stack[-1] - if self.align_stack: - self.align = align = self.align_stack[-1] - self.writer.new_alignment(align) - else: - self.align = None - self.writer.new_alignment(None) - - def push_font(self, (size, i, b, tt)): - if self.softspace: - self.hard_break = self.para_end = self.softspace = 0 - self.nospace = 1 - self.writer.send_flowing_data(' ') - if self.font_stack: - csize, ci, cb, ctt = self.font_stack[-1] - if size is AS_IS: size = csize - if i is AS_IS: i = ci - if b is AS_IS: b = cb - if tt is AS_IS: tt = ctt - font = (size, i, b, tt) - self.font_stack.append(font) - self.writer.new_font(font) - - def pop_font(self): - if self.font_stack: - del self.font_stack[-1] - if self.font_stack: - font = self.font_stack[-1] - else: - font = None - self.writer.new_font(font) - - def push_margin(self, margin): - self.margin_stack.append(margin) - fstack = filter(None, self.margin_stack) - if not margin and fstack: - margin = fstack[-1] - self.writer.new_margin(margin, len(fstack)) - - def pop_margin(self): - if self.margin_stack: - del self.margin_stack[-1] - fstack = filter(None, self.margin_stack) - if fstack: - margin = fstack[-1] - else: - margin = None - self.writer.new_margin(margin, len(fstack)) - - def set_spacing(self, spacing): - self.spacing = spacing - self.writer.new_spacing(spacing) - - def push_style(self, *styles): - if self.softspace: - self.hard_break = self.para_end = self.softspace = 0 - self.nospace = 1 - self.writer.send_flowing_data(' ') - for style in styles: - self.style_stack.append(style) - self.writer.new_styles(tuple(self.style_stack)) - - def pop_style(self, n=1): - del self.style_stack[-n:] - self.writer.new_styles(tuple(self.style_stack)) - - def assert_line_data(self, flag=1): - self.nospace = self.hard_break = not flag - self.para_end = self.parskip = self.have_label = 0 - - -class NullWriter: - """Minimal writer interface to use in testing & inheritance.""" - def __init__(self): pass - def flush(self): pass - def new_alignment(self, align): pass - def new_font(self, font): pass - def new_margin(self, margin, level): pass - def new_spacing(self, spacing): pass - def new_styles(self, styles): pass - def send_paragraph(self, blankline): pass - def send_line_break(self): pass - def send_hor_rule(self, *args, **kw): pass - def send_label_data(self, data): pass - def send_flowing_data(self, data): pass - def send_literal_data(self, data): pass - - -class AbstractWriter(NullWriter): - - def __init__(self): - pass - - def new_alignment(self, align): - print "new_alignment(%s)" % `align` - - def new_font(self, font): - print "new_font(%s)" % `font` - - def new_margin(self, margin, level): - print "new_margin(%s, %d)" % (`margin`, level) - - def new_spacing(self, spacing): - print "new_spacing(%s)" % `spacing` - - def new_styles(self, styles): - print "new_styles(%s)" % `styles` - - def send_paragraph(self, blankline): - print "send_paragraph(%s)" % `blankline` - - def send_line_break(self): - print "send_line_break()" - - def send_hor_rule(self, *args, **kw): - print "send_hor_rule()" - - def send_label_data(self, data): - print "send_label_data(%s)" % `data` - - def send_flowing_data(self, data): - print "send_flowing_data(%s)" % `data` - - def send_literal_data(self, data): - print "send_literal_data(%s)" % `data` - - -class DumbWriter(NullWriter): - - def __init__(self, file=None, maxcol=72): - self.file = file or sys.stdout - self.maxcol = maxcol - NullWriter.__init__(self) - self.reset() - - def reset(self): - self.col = 0 - self.atbreak = 0 - - def send_paragraph(self, blankline): - self.file.write('\n' + '\n'*blankline) - self.col = 0 - self.atbreak = 0 - - def send_line_break(self): - self.file.write('\n') - self.col = 0 - self.atbreak = 0 - - def send_hor_rule(self, *args, **kw): - self.file.write('\n') - self.file.write('-'*self.maxcol) - self.file.write('\n') - self.col = 0 - self.atbreak = 0 - - def send_literal_data(self, data): - self.file.write(data) - i = string.rfind(data, '\n') - if i >= 0: - self.col = 0 - data = data[i+1:] - data = string.expandtabs(data) - self.col = self.col + len(data) - self.atbreak = 0 - - def send_flowing_data(self, data): - if not data: return - atbreak = self.atbreak or data[0] in string.whitespace - col = self.col - maxcol = self.maxcol - write = self.file.write - for word in string.split(data): - if atbreak: - if col + len(word) >= maxcol: - write('\n') - col = 0 - else: - write(' ') - col = col + 1 - write(word) - col = col + len(word) - atbreak = 1 - self.col = col - self.atbreak = data[-1] in string.whitespace - - -def test(file = None): - w = DumbWriter() - f = AbstractFormatter(w) - if file: - fp = open(file) - elif sys.argv[1:]: - fp = open(sys.argv[1]) - else: - fp = sys.stdin - while 1: - line = fp.readline() - if not line: - break - if line == '\n': - f.end_paragraph(1) - else: - f.add_flowing_data(line) - f.end_paragraph(0) - - -if __name__ == '__main__': - test() |