Symbols for Character Art

This module defines single- and multi-line symbols.

EXAMPLES:

sage: from sage.typeset.symbols import *

sage: symbols = ascii_art(u'')
sage: for i in range(1, 5):
....:     symbols += ascii_left_parenthesis.character_art(i)
....:     symbols += ascii_art(u' ')
....:     symbols += ascii_right_parenthesis.character_art(i)
....:     symbols += ascii_art(u' ')
sage: for i in range(1, 5):
....:     symbols += ascii_left_square_bracket.character_art(i)
....:     symbols += ascii_art(u' ')
....:     symbols += ascii_right_square_bracket.character_art(i)
....:     symbols += ascii_art(u' ')
sage: for i in range(1, 5):
....:     symbols += ascii_left_curly_brace.character_art(i)
....:     symbols += ascii_art(u' ')
....:     symbols += ascii_right_curly_brace.character_art(i)
....:     symbols += ascii_art(u' ')
sage: symbols
            ( )             [ ]             { }
        ( ) ( )         [ ] [ ]         { } { }
    ( ) ( ) ( )     [ ] [ ] [ ]     { } { } { }
( ) ( ) ( ) ( ) [ ] [ ] [ ] [ ] { } { } { } { }

sage: symbols = unicode_art(u'')
sage: for i in range(1, 5):
....:     symbols += unicode_left_parenthesis.character_art(i)
....:     symbols += unicode_art(u' ')
....:     symbols += unicode_right_parenthesis.character_art(i)
....:     symbols += unicode_art(u' ')
sage: for i in range(1, 5):
....:     symbols += unicode_left_square_bracket.character_art(i)
....:     symbols += unicode_art(u' ')
....:     symbols += unicode_right_square_bracket.character_art(i)
....:     symbols += unicode_art(u' ')
sage: for i in range(1, 5):
....:     symbols += unicode_left_curly_brace.character_art(i)
....:     symbols += unicode_art(u' ')
....:     symbols += unicode_right_curly_brace.character_art(i)
....:     symbols += unicode_art(u' ')
sage: symbols
            ⎛ ⎞             ⎡ ⎤             ⎧ ⎫
        ⎛ ⎞ ⎜ ⎟         ⎡ ⎤ ⎢ ⎥         ⎧ ⎫ ⎭ ⎩
    ⎛ ⎞ ⎜ ⎟ ⎜ ⎟     ⎡ ⎤ ⎢ ⎥ ⎢ ⎥     ⎰ ⎱ ⎨ ⎬ ⎫ ⎧
( ) ⎝ ⎠ ⎝ ⎠ ⎝ ⎠ [ ] ⎣ ⎦ ⎣ ⎦ ⎣ ⎦ { } ⎱ ⎰ ⎩ ⎭ ⎩ ⎭

class sage.typeset.symbols.CompoundAsciiSymbol(character, top, extension, bottom, middle=None, middle_top=None, middle_bottom=None, top_2=None, bottom_2=None)

Bases: sage.typeset.symbols.CompoundSymbol

character_art(num_lines)

Return the ASCII art of the symbol

EXAMPLES:

sage: from sage.typeset.symbols import *
sage: ascii_left_curly_brace.character_art(3)
{
{
{

class sage.typeset.symbols.CompoundSymbol(character, top, extension, bottom, middle=None, middle_top=None, middle_bottom=None, top_2=None, bottom_2=None)

Bases: sage.structure.sage_object.SageObject

A multi-character (ascii/unicode art) symbol

INPUT:

Instead of string, each of these can be unicode in Python 2:

• character – string. The single-line version of the symbol.
• top – string. The top line of a multi-line symbol.
• extension – string. The extension line of a multi-line symbol (will be repeated).
• bottom – string. The bottom line of a multi-line symbol.
• middle – optional string. The middle part, for example in curly braces. Will be used only once for the symbol, and only if its height is odd.
• middle_top – optional string. The upper half of the 2-line middle part if the height of the symbol is even. Will be used only once for the symbol.
• middle_bottom – optional string. The lower half of the 2-line middle part if the height of the symbol is even. Will be used only once for the symbol.
• top_2 – optional string. The upper half of a 2-line symbol.
• bottom_2 – optional string. The lower half of a 2-line symbol.

EXAMPLES:

sage: from sage.typeset.symbols import CompoundSymbol
sage: i = CompoundSymbol('I', '+', '|', '+', '|')
sage: i.print_to_stdout(1)
I
sage: i.print_to_stdout(3)
+
|
+

print_to_stdout(num_lines)

Print the multi-line symbol

This method is for testing purposes.

INPUT:

• num_lines – integer. The total number of lines.

EXAMPLES:

sage: from sage.typeset.symbols import *
sage: unicode_integral.print_to_stdout(1)
∫
sage: unicode_integral.print_to_stdout(2)
⌠
⌡
sage: unicode_integral.print_to_stdout(3)
⌠
⎮
⌡
sage: unicode_integral.print_to_stdout(4)
⌠
⎮
⎮
⌡

class sage.typeset.symbols.CompoundUnicodeSymbol(character, top, extension, bottom, middle=None, middle_top=None, middle_bottom=None, top_2=None, bottom_2=None)

Bases: sage.typeset.symbols.CompoundSymbol

character_art(num_lines)

Return the unicode art of the symbol

EXAMPLES:

sage: from sage.typeset.symbols import *
sage: unicode_left_curly_brace.character_art(3)
⎧
⎨
⎩