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End the war on tabs (phpnw14)

End the war on tabs (phpnw14)

Igor Wiedler

October 04, 2014
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  1. Something

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  2. end
    !
    the
    war on tabs

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  3. @igorwhiletrue

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  4. I ❤ \t

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  5. programming
    =
    art

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  6. war on tabs

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  7. \t
    =
    freedom

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  8. View Slide

  9. \t

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  10. View Slide

  11. (whitespace)

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  12. decision procedure

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  13. meta-interpreter
    in 2927 lines

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  14. meta-interpreter
    in 2927 lines

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  15. $ (cat examples/wsinterws.ws; cat examples/hworld.ws; echo -ne "\n\n\nquit\n
    \n\n") | hhvm bin/interpreter examples/wsinterws.ws
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    Hello, world of spaces!

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  16. $ (cat examples/wsinterws.ws; cat examples/hworld.ws; echo -ne "\n\n\nquit\n
    \n\n") | hhvm bin/interpreter examples/wsinterws.ws
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    Hello, world of spaces!

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  17. $ (cat examples/wsinterws.ws; cat examples/hworld.ws; echo -ne "\n\n\nquit\n
    \n\n") | hhvm bin/interpreter examples/wsinterws.ws
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    Hello, world of spaces!

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  18. $ (cat examples/wsinterws.ws; cat examples/hworld.ws; echo -ne "\n\n\nquit\n
    \n\n") | hhvm bin/interpreter examples/wsinterws.ws
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    Hello, world of spaces!

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  19. stack machine

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  20. instruction set
    • stack: push, dup, ref, swap, discard, slide
    • arithmetic: add, sub, mul, div, mod
    • heap: store, retrieve
    • flow: label, call, jump, jumpz, jumplz, ret,
    exit
    • i/o: write_char, write_num, read_char,
    read_num

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  21. encoded in terms of
    \t (9) \n (10) (32)

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  22. domain specific
    language

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  23. environmentally
    friendly

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  24. read between the lines

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  25. loop + switch
    =
    stack machine

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  26. stack: push/pop

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  27. View Slide

  28. View Slide

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  30. View Slide

  31. View Slide

  32. View Slide

  33. View Slide

  34. View Slide

  35. arithmetic: + - * / %

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  36. 1 2 + 1 - 2 *

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  37. 1
    1 2 + 1 - 2 *

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  38. 1
    2
    1 2 + 1 - 2 *

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  39. 3
    1 2 + 1 - 2 *

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  40. 3
    1 2 + 1 - 2 *
    1

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  41. 2
    1 2 + 1 - 2 *

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  42. 2
    1 2 + 1 - 2 *
    2

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  43. 4
    1 2 + 1 - 2 *

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  44. heap: store/retrieve

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  45. 0
    1
    2
    3
    0 33 store 1 retri
    eve
    0 retri
    eve

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  46. 0
    1
    2
    3
    0 33 store 1 retri
    eve
    0 retri
    eve

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  47. 0
    1
    2
    3
    0 33 store 1 retri
    eve
    0 retri
    eve

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  48. 0
    1
    2
    3
    0 33 store 1 retri
    eve
    0 retri
    eve
    33

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  49. 0
    1
    2
    3
    0 33 store 1 retri
    eve
    33
    0 retri
    eve

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  50. 0
    1
    2
    3
    0 33 store 1 retri
    eve
    33
    0 retri
    eve

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  51. 0
    1
    2
    3
    0 33 store 1 retri
    eve
    33
    0 retri
    eve
    0

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  52. 0
    1
    2
    3
    0 33 store 1 retri
    eve
    33
    0 retri
    eve

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  53. 0
    1
    2
    3
    0 33 store 1 retri
    eve
    33
    0 retri
    eve

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  54. 0
    1
    2
    3
    0 33 store 1 retri
    eve
    33
    0 retri
    eve
    33

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  55. control flow

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  56. your CPU
    considered

    harmful

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  57. label
    0
    0 + jump
    0
    0
    1

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  58. label
    0
    0 + jump
    0
    0
    1

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  59. label
    0
    0 + jump
    0
    0
    1
    1

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  60. label
    0
    0 + jump
    0
    1
    1

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  61. label
    0
    0 + jump
    0
    1
    1

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  62. label
    0
    0 + jump
    0
    1
    1

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  63. label
    0
    0 + jump
    0
    1
    1
    1

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  64. label
    0
    0 + jump
    0
    2
    1

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  65. label
    0
    0 + jump
    0
    2
    1

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  66. label
    0
    0 + jump
    0
    2
    1

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  67. label
    0
    0 + jump
    0
    2
    1
    1

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  68. label
    0
    0 + jump
    0
    3
    1

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  69. label
    0
    0 + jump
    0
    3
    1

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  70. View Slide

  71. label
    0
    0 + jumpnz
    0
    0
    1 dup 2 swap -

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  72. label
    0
    0 +
    0
    1 dup 2 swap - jumpnz
    0

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  73. label
    0
    0 +
    0
    1 dup 2 swap -
    1
    jumpnz
    0

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  74. label
    0
    0 +
    1 dup 2 swap -
    1
    jumpnz
    0

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  75. label
    0
    0 +
    1 dup 2 swap -
    1
    1
    jumpnz
    0

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  76. 2
    label
    0
    0 +
    1 dup 2 swap -
    1
    1
    jumpnz
    0

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  77. 1
    2
    label
    0
    0 +
    1 dup 2 swap -
    1
    jumpnz
    0

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  78. 1
    label
    0
    0 +
    1 dup 2 swap -
    1
    jumpnz
    0

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  79. 1
    label
    0
    0 +
    1 dup 2 swap -
    1
    jumpnz
    0

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  80. label
    0
    0 +
    1 dup 2 swap -
    1
    jumpnz
    0

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  81. label
    0
    0 +
    1 dup 2 swap -
    1
    jumpnz
    0

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  82. label
    0
    0 +
    1 dup 2 swap -
    1
    jumpnz
    0
    1

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  83. label
    0
    0 +
    1 dup 2 swap -
    2
    jumpnz
    0

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  84. label
    0
    0 +
    1 dup 2 swap -
    2
    jumpnz
    0
    2

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  85. 2
    label
    0
    0 +
    1 dup 2 swap -
    2
    jumpnz
    0
    2

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  86. 2
    2
    label
    0
    0 +
    1 dup 2 swap -
    2
    jumpnz
    0

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  87. label
    0
    0 +
    1 dup 2 swap -
    2
    jumpnz
    0
    0

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  88. label
    0
    0 +
    1 dup 2 swap -
    2
    jumpnz
    0
    0

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  89. label
    0
    0 +
    1 dup 2 swap -
    2
    jumpnz
    0

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  90. label
    0
    0 +
    1 dup 2 swap -
    2
    jumpnz
    0

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  91. i/o

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  92. View Slide

  93. View Slide

  94. turing completeness

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  95. View Slide

  96. meta-interpreter

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  97. $ (cat examples/wsinterws.ws; cat examples/hworld.ws; echo -ne "\n\n\nquit\n
    \n\n") | hhvm bin/interpreter examples/wsinterws.ws
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    Hello, world of spaces!
    CPU (x86)

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  98. $ (cat examples/wsinterws.ws; cat examples/hworld.ws; echo -ne "\n\n\nquit\n
    \n\n") | hhvm bin/interpreter examples/wsinterws.ws
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    Hello, world of spaces!
    PHP interpreter (C)

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  99. $ (cat examples/wsinterws.ws; cat examples/hworld.ws; echo -ne "\n\n\nquit\n
    \n\n") | hhvm bin/interpreter examples/wsinterws.ws
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    Hello, world of spaces!
    ws interpreter (PHP)

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  100. $ (cat examples/wsinterws.ws; cat examples/hworld.ws; echo -ne "\n\n\nquit\n
    \n\n") | hhvm bin/interpreter examples/wsinterws.ws
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    Hello, world of spaces!
    ws interpreter (ws)

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  101. $ (cat examples/wsinterws.ws; cat examples/hworld.ws; echo -ne "\n\n\nquit\n
    \n\n") | hhvm bin/interpreter examples/wsinterws.ws
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    Hello, world of spaces!
    ws interpreter (ws)

    View Slide

  102. $ (cat examples/wsinterws.ws; cat examples/hworld.ws; echo -ne "\n\n\nquit\n
    \n\n") | hhvm bin/interpreter examples/wsinterws.ws
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    Hello, world of spaces!
    hello world (ws)

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  103. $ (cat examples/wsinterws.ws; cat examples/hworld.ws; echo -ne "\n\n\nquit\n
    \n\n") | hhvm bin/interpreter examples/wsinterws.ws
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    whitespace interpreter written in whitespace
    made by oliver burghard [email protected]
    in his free time for your and his joy
    good time and join me to get whitespace ready for business
    for any other information dial 1-900-whitespace
    or get soon info at www.whitespace-wants-to-be-taken-serious.org
    please enter the program and terminate via 3xenter,'quit',3xenter
    -- ws interpreter ws -------------------------------------------
    Hello, world of spaces!

    View Slide

  104. hello, world of spaces

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  105. do not want to hear
    your questions
    • joind.in/12146
    • @igorwhiletrue
    !
    • esolangs.org/wiki/Whitespace
    • compsoc.dur.ac.uk/whitespace
    • github.com/igorw/whitespace-php
    • github.com/igorw/wsm

    View Slide