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| # Natural Language Toolkit: Sun Tsu-Bot | |
| # | |
| # Copyright (C) 2001-2023 NLTK Project | |
| # Author: Sam Huston 2007 | |
| # URL: <https://www.nltk.org/> | |
| # For license information, see LICENSE.TXT | |
| """ | |
| Tsu bot responds to all queries with a Sun Tsu sayings | |
| Quoted from Sun Tsu's The Art of War | |
| Translated by LIONEL GILES, M.A. 1910 | |
| Hosted by the Gutenberg Project | |
| https://www.gutenberg.org/ | |
| """ | |
| from nltk.chat.util import Chat, reflections | |
| pairs = ( | |
| (r"quit", ("Good-bye.", "Plan well", "May victory be your future")), | |
| ( | |
| r"[^\?]*\?", | |
| ( | |
| "Please consider whether you can answer your own question.", | |
| "Ask me no questions!", | |
| ), | |
| ), | |
| ( | |
| r"[0-9]+(.*)", | |
| ( | |
| "It is the rule in war, if our forces are ten to the enemy's one, to surround him; if five to one, to attack him; if twice as numerous, to divide our army into two.", | |
| "There are five essentials for victory", | |
| ), | |
| ), | |
| ( | |
| r"[A-Ca-c](.*)", | |
| ( | |
| "The art of war is of vital importance to the State.", | |
| "All warfare is based on deception.", | |
| "If your opponent is secure at all points, be prepared for him. If he is in superior strength, evade him.", | |
| "If the campaign is protracted, the resources of the State will not be equal to the strain.", | |
| "Attack him where he is unprepared, appear where you are not expected.", | |
| "There is no instance of a country having benefited from prolonged warfare.", | |
| ), | |
| ), | |
| ( | |
| r"[D-Fd-f](.*)", | |
| ( | |
| "The skillful soldier does not raise a second levy, neither are his supply-wagons loaded more than twice.", | |
| "Bring war material with you from home, but forage on the enemy.", | |
| "In war, then, let your great object be victory, not lengthy campaigns.", | |
| "To fight and conquer in all your battles is not supreme excellence; supreme excellence consists in breaking the enemy's resistance without fighting.", | |
| ), | |
| ), | |
| ( | |
| r"[G-Ig-i](.*)", | |
| ( | |
| "Heaven signifies night and day, cold and heat, times and seasons.", | |
| "It is the rule in war, if our forces are ten to the enemy's one, to surround him; if five to one, to attack him; if twice as numerous, to divide our army into two.", | |
| "The good fighters of old first put themselves beyond the possibility of defeat, and then waited for an opportunity of defeating the enemy.", | |
| "One may know how to conquer without being able to do it.", | |
| ), | |
| ), | |
| ( | |
| r"[J-Lj-l](.*)", | |
| ( | |
| "There are three ways in which a ruler can bring misfortune upon his army.", | |
| "By commanding the army to advance or to retreat, being ignorant of the fact that it cannot obey. This is called hobbling the army.", | |
| "By attempting to govern an army in the same way as he administers a kingdom, being ignorant of the conditions which obtain in an army. This causes restlessness in the soldier's minds.", | |
| "By employing the officers of his army without discrimination, through ignorance of the military principle of adaptation to circumstances. This shakes the confidence of the soldiers.", | |
| "There are five essentials for victory", | |
| "He will win who knows when to fight and when not to fight.", | |
| "He will win who knows how to handle both superior and inferior forces.", | |
| "He will win whose army is animated by the same spirit throughout all its ranks.", | |
| "He will win who, prepared himself, waits to take the enemy unprepared.", | |
| "He will win who has military capacity and is not interfered with by the sovereign.", | |
| ), | |
| ), | |
| ( | |
| r"[M-Om-o](.*)", | |
| ( | |
| "If you know the enemy and know yourself, you need not fear the result of a hundred battles.", | |
| "If you know yourself but not the enemy, for every victory gained you will also suffer a defeat.", | |
| "If you know neither the enemy nor yourself, you will succumb in every battle.", | |
| "The control of a large force is the same principle as the control of a few men: it is merely a question of dividing up their numbers.", | |
| ), | |
| ), | |
| ( | |
| r"[P-Rp-r](.*)", | |
| ( | |
| "Security against defeat implies defensive tactics; ability to defeat the enemy means taking the offensive.", | |
| "Standing on the defensive indicates insufficient strength; attacking, a superabundance of strength.", | |
| "He wins his battles by making no mistakes. Making no mistakes is what establishes the certainty of victory, for it means conquering an enemy that is already defeated.", | |
| "A victorious army opposed to a routed one, is as a pound's weight placed in the scale against a single grain.", | |
| "The onrush of a conquering force is like the bursting of pent-up waters into a chasm a thousand fathoms deep.", | |
| ), | |
| ), | |
| ( | |
| r"[S-Us-u](.*)", | |
| ( | |
| "What the ancients called a clever fighter is one who not only wins, but excels in winning with ease.", | |
| "Hence his victories bring him neither reputation for wisdom nor credit for courage.", | |
| "Hence the skillful fighter puts himself into a position which makes defeat impossible, and does not miss the moment for defeating the enemy.", | |
| "In war the victorious strategist only seeks battle after the victory has been won, whereas he who is destined to defeat first fights and afterwards looks for victory.", | |
| "There are not more than five musical notes, yet the combinations of these five give rise to more melodies than can ever be heard.", | |
| "Appear at points which the enemy must hasten to defend; march swiftly to places where you are not expected.", | |
| ), | |
| ), | |
| ( | |
| r"[V-Zv-z](.*)", | |
| ( | |
| "It is a matter of life and death, a road either to safety or to ruin.", | |
| "Hold out baits to entice the enemy. Feign disorder, and crush him.", | |
| "All men can see the tactics whereby I conquer, but what none can see is the strategy out of which victory is evolved.", | |
| "Do not repeat the tactics which have gained you one victory, but let your methods be regulated by the infinite variety of circumstances.", | |
| "So in war, the way is to avoid what is strong and to strike at what is weak.", | |
| "Just as water retains no constant shape, so in warfare there are no constant conditions.", | |
| ), | |
| ), | |
| (r"(.*)", ("Your statement insults me.", "")), | |
| ) | |
| suntsu_chatbot = Chat(pairs, reflections) | |
| def suntsu_chat(): | |
| print("Talk to the program by typing in plain English, using normal upper-") | |
| print('and lower-case letters and punctuation. Enter "quit" when done.') | |
| print("=" * 72) | |
| print("You seek enlightenment?") | |
| suntsu_chatbot.converse() | |
| def demo(): | |
| suntsu_chat() | |
| if __name__ == "__main__": | |
| demo() | |