1 files changed, 398 insertions, 0 deletions
diff --git a/Src/main.cpp b/Src/main.cpp
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--- /dev/null
+++ b/Src/main.cpp
@@ -0,0 +1,398 @@
+#include <iostream>
+#include <StringTools.h>
+#include <string>
+#include <sstream>
+#include <functional>
+#include <algorithm>
+#include <random>
+
+//! Generic uppercase character.
+constexpr char UPPERCASE = 0;
+
+//! Generic lowercase character.
+constexpr char LOWERCASE = (1<<5);
+
+//! Checks whether or not `c` is a vowel. You can define custom vowel characters.
+bool IsVowel(const char c, const std::string& vowels = "euioay") {
+    return std::any_of(
+            vowels.cbegin(),
+            vowels.cend(),
+            [c](const char vowel) {
+                    return c == vowel;
+                }
+        );
+}
+
+//! Returns whether or not `c` is a letter.
+bool IsLetter(const char c) {
+    const char lowercase_c = !(c & (1<<5)) ? (c | (1<<5)) : c; // Re-implementing IsUpper and MakeLower to prevent stack-overflow by endless recursion
+    return (lowercase_c >= 'a') && (lowercase_c <= 'z');
+}
+
+//! Returns whether or not `c` is a generic character (that contains JUST the sign)
+bool IsGeneric(const char c) {
+    return (c == UPPERCASE) || (c == LOWERCASE);
+}
+
+//! Checks whether or not `c` is an uppercase character.
+bool IsUpper(const char c) {
+    if ((!IsLetter(c)) && (!IsGeneric(c)))
+        return false;
+    else
+        return !(c & (1<<5));
+}
+
+//! Will return `c` as an uppercase character.
+char MakeUpper(char c) {
+    if ((!IsLetter(c)) && (!IsGeneric(c)))
+        return c;
+    else if (IsUpper(c))
+        return c;
+    else
+        return c & ~(1<<5);
+}
+
+//! Will return `c` as a lowercase character.
+char MakeLower(char c) {
+    if ((!IsLetter(c)) && (!IsGeneric(c)))
+        return c;
+    else if (!IsUpper(c))
+        return c;
+    else
+        return c | (1<<5);
+}
+
+//! Will return an empty character with the same sign/capitalization as `c`.
+char GetSign(char c) {
+    if (IsUpper(c))
+        return UPPERCASE;
+    else
+        return LOWERCASE;
+}
+
+//! Will return `c` with the same capitalization as `sign`.
+char CopySign(char sign, char c) {
+    if ((!IsLetter(c)) && (!IsGeneric(c)))
+        return c;
+    if (IsUpper(sign))
+        return MakeUpper(c);
+    else
+        return MakeLower(c);
+}
+
+//! Will replace all occurrences of a substring `find` in `str` with `sub`, but it will try to keep the characters signs.
+//! Like (pay attention to the capitalization):.
+//! ("Hello World", "hello", "hi") -> "Hi World".
+//! ("hello World", "hello", "hi") -> "hi World".
+//! ("HELLO World", "hello", "hi") -> "HI World".
+//! You can also supply a callback to only perform a replacement if certain conditions apply.
+std::string ReplaceButKeepSigns(
+        const std::string& str,
+        std::string find,
+        const std::string& sub,
+        const std::function<bool(const std::string&, const std::size_t)>& onlyIf = [](const std::string &,
+                                                                                      const std::size_t) { return true; } // Default is: replace always
+) {
+
+    // Quick accepts-and rejects
+    if (str.length() == 0)
+        return "";
+    else if (find.length() == 0)
+        return str;
+
+    std::stringstream ss;
+
+    // Better safe than sorry
+    find = StringTools::Lower(find);
+
+    for (std::size_t i = 0; i < str.length(); i++)
+    {
+        const std::string foundInText = str.substr(i, find.length());
+        const std::string foundInText_lower = StringTools::Lower(foundInText);
+        if (foundInText_lower == find)
+        {
+            // Ask the callback if we should replace this one
+            if (onlyIf(foundInText, i))
+            {
+                // Here we've found our occurrence...
+                // We have three possible cases:
+                // 1: len(find) == len(sub), in this case we want to sync capitalization by index.
+                // 2: len(find) < len(sub), in this case we sync by index, BUT...
+                // 3: len(find) > len(sub): sync capitalization by index
+
+                // We want to sync capitalization by index
+                // This accounts for both cases: 1 and 3
+                if (foundInText.length() >= sub.length())
+                {
+                    for (std::size_t j = 0; j < sub.length(); j++)
+                    {
+                        const char cf = foundInText[j];
+                        const char cs = sub[j];
+
+                        ss << CopySign(cf, cs);
+                    }
+                }
+
+                // in this case we sync by index, BUT...
+                else if (foundInText.length() < sub.length())
+                {
+                    char followingCharsSign = 0;
+                    bool doHaveFollowingChar = false;
+                    // Do we even have a following char?
+                    if (str.length() >= i + foundInText.length() + 1)
+                    {
+                        const char followingChar = str[i + foundInText.length()];
+
+                        // Is it a letter?
+                        if (IsLetter(followingChar))
+                        {
+                            // Copy its sign
+                            followingCharsSign = GetSign(followingChar);
+                            doHaveFollowingChar = true;
+                        }
+                    }
+
+
+                    char lastCharCharSign = 0;
+                    for (std::size_t j = 0; j < sub.length(); j++)
+                    {
+                        const char cs = sub[j];
+
+                        // Do we still have chars of 'find' left?
+                        if (j < foundInText.length())
+                        {
+                            // Yes: Just copy the sign as is, and update the last sign seen
+                            const char cf = foundInText[j];
+                            lastCharCharSign = GetSign(cf);
+                            ss << CopySign(cf, cs);
+                        }
+                        else
+                        {
+                            // No: Use the last sign seen, or the sign of the following char (the following char within the same word-boundary) (Important for replacing vocals within a word)
+                            const char charSignToUse = doHaveFollowingChar ? followingCharsSign : lastCharCharSign;
+                            ss << CopySign(charSignToUse, cs);
+                        }
+                    }
+                }
+            }
+            else
+            {
+                // We do not have an occurrence... just insert the subsection found as is (next iteration will start behind it)
+                ss << foundInText;
+            }
+
+            // Advance i accordingly
+            i += foundInText.length()-1;
+        }
+        else
+        {
+            // We do not have an occurrence... just insert the char as is
+            ss << str[i];
+        }
+    }
+
+    return ss.str();
+}
+
+//! Will make a boring string look sooper dooper kawaii and cute :3
+std::string MakeUwu(std::string boringString) {
+    // Easy ones first
+    // none, lol
+
+    // Slightly more complex... Multichar replacements, but we have to keep capitalization...
+    boringString = ReplaceButKeepSigns(boringString, "th", "tw");
+    boringString = ReplaceButKeepSigns(boringString, "ove", "uv");
+    boringString = ReplaceButKeepSigns(boringString, "have", "haf");
+    boringString = ReplaceButKeepSigns(boringString, "tr", "tw");
+    boringString = ReplaceButKeepSigns(boringString, "up", "uwp");
+
+    // Let's do some language adjustments
+    boringString = ReplaceButKeepSigns(boringString, "twank you", "you're twe best <3333 xoxo");
+    boringString = ReplaceButKeepSigns(boringString, "good", "sooper dooper");
+    boringString = ReplaceButKeepSigns(boringString, "suwper", "sooper dooper");
+    boringString = ReplaceButKeepSigns(boringString, "well", "sooper dooper");
+    boringString = ReplaceButKeepSigns(boringString, "emacs", "vim");
+    boringString = ReplaceButKeepSigns(boringString, "twanks", "you're twe best :33 xoxo");
+    boringString = ReplaceButKeepSigns(boringString, "hello", "hiiiiiii");
+    boringString = ReplaceButKeepSigns(boringString, "dear", "hiiiiiii");
+    boringString = ReplaceButKeepSigns(boringString, "hi", "hiiiiiii");
+
+    // Replace N with Ny, but only if succeeded by a vowel, and not preceded by an o: "one" has such a niche pronunciation.
+    boringString = ReplaceButKeepSigns(
+            boringString,
+            "n",
+            "ny",
+            [boringString](const std::string &found, int index) {
+                // Don't replace, if we are on the last char
+                if (index + found.length() == boringString.length() - 1)
+                    return false;
+
+                const char nextChar = MakeLower(boringString[index + found.length()]);
+                const char lastChar = MakeLower(boringString[index - 1]);
+
+                // Don't replace if the last char is an 'o'
+                if (lastChar == 'o')
+                    return false;
+
+                // Is this a vowel?
+                if (IsVowel(nextChar))
+                    return true;
+
+                // Else, don't replace
+                return false;
+            }
+    );
+
+    // Replace R with W, but only if not succeeded by a non-vowel, and if it's not the first character of a word
+    boringString = ReplaceButKeepSigns(
+            boringString,
+            "r",
+            "w",
+            [boringString](const std::string &found, const std::size_t index) {
+                // Don't replace, if we are on the last char
+                if (index + found.length() == boringString.length() - 1)
+                    return false;
+
+                // Don't replace if we're at index 0
+                if (index == 0)
+                    return false;
+
+                const char nextChar = MakeLower(boringString[index + found.length()]);
+                const char lastChar = MakeLower(boringString[index - 1]);
+
+                // Is this a non-vowel?
+                if (!IsVowel(nextChar))
+                    return false;
+
+                // Don't replace if the last char is not a letter
+                if (!IsLetter(lastChar))
+                    return false;
+
+                // Else, replace
+                return true;
+            }
+    );
+
+    // Replace L with W, but only if not followed or preceded by another L, and if it's not the first character of a word
+    boringString = ReplaceButKeepSigns(
+            boringString,
+            "l",
+            "w",
+            [boringString](const std::string &found, int index) {
+                // Our segment has to be at least two characters long
+                if (boringString.length() < found.length() + 2)
+                    return false;
+
+                // Don't replace if we're at index o
+                if (index == 0)
+                    return false;
+
+                const char lastChar = MakeLower(boringString[index - 1]);
+                const char nextChar = MakeLower(boringString[index + found.length()]);
+
+                // Don't replace if the last char is not a letter
+                if (!IsLetter(lastChar))
+                    return false;
+
+                return (lastChar != 'l') && (nextChar != 'l');
+            }
+    );
+
+    // Replace LL with WW, but only if followed by a vowel
+    boringString = ReplaceButKeepSigns(
+            boringString,
+            "ll",
+            "ww",
+            [boringString](const std::string &found, int index) {
+                // Don't replace, if we are on the last char
+                if (index + found.length() == boringString.length() - 1)
+                    return false;
+
+                const char nextChar = MakeLower(boringString[index + found.length()]);
+
+                return IsVowel(nextChar);
+            }
+    );
+
+    // Replace ER with A, but only if it's the last two letters of a word
+    boringString = ReplaceButKeepSigns(
+            boringString,
+            "er",
+            "a",
+            [boringString](const std::string &found, int index) {
+                // Replace if we're at the end of this line/segment
+                if (index + found.length() == boringString.length() - 1)
+                    return false;
+
+                // Fetch the next char
+                const char nextChar = MakeLower(boringString[index + found.length()]);
+
+                // Replace if the next char is not a letter
+                return IsLetter(nextChar) == false;
+            }
+    );
+
+    // Replace random punctuation with uwwwwu cute symbols
+    // About evewy fifteenth symbol
+    std::stringstream ss;
+    std::mt19937 rng(std::hash<std::string>()(boringString)); // Seed rng based on string
+    for (const char c : boringString)
+    {
+        if ((c == '.') && (rng() % 15 == 0))
+        {
+            ss << " <3333 ^.^ ";
+        }
+        else if ((c == '!') && (rng() % 15 == 0))
+        {
+            ss << "!! Thadws impowtant! <3 ";
+        }
+        else if ((c == ',') && (rng() % 15 == 0))
+        {
+            ss << " <3 aaaaaand ";
+        }
+        else if ((c == '?') && (rng() % 15 == 0))
+        {
+            ss << "?? now tell me! >:( ";
+        }
+        else
+            ss << c;
+    }
+    boringString = ss.str();
+
+    // Also replace some ascii-"emojis'
+    boringString = StringTools::Replace(boringString, ":)", "UwU :D");
+    boringString = StringTools::Replace(boringString, ":D", ":3");
+    boringString = StringTools::Replace(boringString, ":-)", "UwwwU :3");
+    boringString = StringTools::Replace(boringString, "^^", "^.^ UwU");
+
+    // Some language replacement should happen after these more complex rules
+    boringString = ReplaceButKeepSigns(boringString, "c++", "c++ (rust is hella cutewr btw ^^)");
+
+
+    return boringString;
+}
+
+int main(int argc, char** argv) {
+
+    // We have arguments. Uwwuifie these instead
+    if (argc > 1)
+    {
+        // We have to put the args together first, because some replace-rules cross word-borders
+        std::stringstream  ss;
+        for (std::size_t i = 1; i < argc; i++)
+            ss << std::string(argv[i]) + " ";
+
+        std::cout << MakeUwu(ss.str()) << std::endl;
+    }
+
+    // Else, be prepared to get __piped__
+    else
+    {
+        std::string buf;
+        while (std::getline(std::cin, buf))
+            std::cout << MakeUwu(buf) << std::endl;
+
+    }
+
+    return 0;
+}