python 显示ASCII表中的行和列

Posted 2021-05-10

# /usr/bin/env python
# -*- coding: utf-8 -*-

"""
sq.texttable
~~~~~~~~~~~~

Creates simple ASCII tables
Based on texttables by Gerome Fournier
..'https://pypi.python.org/pypi/texttable/0.8.1'_

TextTable features not yet implemented:
1. Horizontal Alignment within cell (left, center, right).
   Currently set to left.
2. Vertical Alignment within cell (top, middle, bottom).
   Currently set to top.
3. Set column width.
   Currently set to auto.
4. Set precision on floats & exponential values
5. Values must be strings
6. Borders are a place holder for future development, not currently implemented

"""


class Border:
    """
    Line 1:  +===========+===========+
    Line 2:  | HEADER1   | HEADER2   |
    Line 3:  +===========+===========+
    Line 4:  | ROW1-COL1 | ROW1-COL2 |
    Line 5:  +-----------+-----------+
    Line 6:  | ROW2-COL1 | ROW2-COL2 |
    Line 7:  +===========+===========+

    LINE1: CORNER + TOP_BOTTOM_BORDER*11 + TOP_BOTTOM_JOIN
           + TOP_BOTTOM_BORDER*11 + CORNER

    LINE2: LEFT_RIGHT_BORDER + ' '*PADDING + 'HEADER1' + ' '*PADDING
           + COLUMN_SEPERATOR + ' '*PADDING + 'HEADER2' + ' '*PADDING
           + LEFT_RIGHT_BORDER

    LINE3: RIGHT_LEFT_JOIN + BORDER_HEADER*11 + INNER_JOIN +
            HEADER_SEPARATOR*11 + RIGHT_LEFT_JOIN

    LINE4: LEFT_RIGHT_BORDER + ' '*PADDING + 'ROW1-COL1' + ' '*PADDING
           + COL_SEPERATOR  + ' '*PADDING + 'ROW1-COL2' + ' '*PADDING
           + LEFT_RIGHT_BORDER

    LINE5: RIGHT_LEFT_JOIN + ROW_SEPERATOR*11 + INNER_JOIN +
            ROW_SEPERATOR*11 + RIGHT_LEFT_JOIN

    LINE 6: Similar to line 4
    LINE 7: Same as line 1
    """

    # Border characters
    TOP_BOTTOM_BORDER, LEFT_RIGHT_BORDER = '_', '|'

    # Seperator characters
    HEADER_SEPARATOR, ROW_SEPERATOR, COLUMN_SEPARATOR = '=', '-', '|'

    # Join (intesection) characters
    INNER_JOIN, TOP_BOTTOM_JOIN, RIGHT_LEFT_JOIN = '+', '+', '+'
    CORNER = '+'


class TextTable:

    def __init__(self, table_data=None, has_header=None, has_border=None,
                 row_separator='_', column_separator='|'):
        self.rows = []
        self.has_header = has_header
        self.borders = Border() if has_border else None
        self.row_separator = row_separator
        self.column_seperator = column_separator
        if table_data:
            self.add_rows(table_data)
        self.padding = ' '

    def draw(self, rows):
        cols = list(zip(*rows))
        for colnum, col in enumerate(cols):
            width = max(len(i) for i in col)
            cols[colnum] = [i.ljust(width) for i in col]
        for row in zip(*cols):
            print(self.padding.join(row))


def texttable(matrix):
    t = TextTable()
    t.draw(matrix)