Method _pprint_str

Lib/pprint.py:404–457

(self, object, stream, indent, allowance, context, level)

    _dispatch[frozenset.__repr__] = _pprint_set

    def _pprint_str(self, object, stream, indent, allowance, context, level):
        write = stream.write
        if not len(object):
            write(repr(object))
            return
        chunks = []
        lines = object.splitlines(True)
        if level == 1:
            if self._expand:
                indent += self._indent_per_level
            else:
                indent += 1
            allowance += 1
        max_width1 = max_width = self._width - indent
        for i, line in enumerate(lines):
            rep = repr(line)
            if i == len(lines) - 1:
                max_width1 -= allowance
            if len(rep) <= max_width1:
                chunks.append(rep)
            else:
                # Lazy import to improve module import time
                import re

                # A list of alternating (non-space, space) strings
                parts = re.findall(r'\S*\s*', line)
                assert parts
                assert not parts[-1]
                parts.pop()  # drop empty last part
                max_width2 = max_width
                current = ''
                for j, part in enumerate(parts):
                    candidate = current + part
                    if j == len(parts) - 1 and i == len(lines) - 1:
                        max_width2 -= allowance
                    if len(repr(candidate)) > max_width2:
                        if current:
                            chunks.append(repr(current))
                        current = part
                    else:
                        current = candidate
                if current:
                    chunks.append(repr(current))
        if len(chunks) == 1:
            write(rep)
            return
        if level == 1:
            write(self._format_block_start("(", indent))
        for i, rep in enumerate(chunks):
            if i > 0:
                write('\n' + ' '*indent)
            write(rep)
        if level == 1:
            write(self._format_block_end(")", indent - self._indent_per_level))

    _dispatch[str.__repr__] = _pprint_str