From 9851b8647d124a3d317eab613e859ee63fc62ca6 Mon Sep 17 00:00:00 2001
From: kwaroran <kwaworan@gmail.com>
Date: Sun, 25 Jun 2023 21:12:06 +0900
Subject: [PATCH] [test] infunctions

---
 package.json                  |  1 +
 pnpm-lock.yaml                |  7 +++
 src/ts/process/infunctions.ts | 84 +++++++++++++++++++++++++++++++++++
 3 files changed, 92 insertions(+)
 create mode 100644 src/ts/process/infunctions.ts

diff --git a/package.json b/package.json
index 45581920..90b8acfb 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,7 @@
   "dependencies": {
     "@adobe/css-tools": "4.3.0-beta.2",
     "@dqbd/tiktoken": "^1.0.4",
+    "@mlc-ai/web-tokenizers": "^0.1.0",
     "@tauri-apps/api": "1.3.0",
     "@xenova/transformers": "^2.1.1",
     "blueimp-md5": "^2.19.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 5ba8e828..7af74a4a 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -7,6 +7,9 @@ dependencies:
   '@dqbd/tiktoken':
     specifier: ^1.0.4
     version: 1.0.4
+  '@mlc-ai/web-tokenizers':
+    specifier: ^0.1.0
+    version: 0.1.0
   '@tauri-apps/api':
     specifier: 1.3.0
     version: 1.3.0
@@ -402,6 +405,10 @@ packages:
       '@jridgewell/sourcemap-codec': 1.4.14
     dev: true
 
+  /@mlc-ai/web-tokenizers@0.1.0:
+    resolution: {integrity: sha512-whiQ+40ohtAFoFOGcje1Io7BMr434Wh3hM3nBCWlJMpXxL5Rlig/AH9wjyUPsytKwWTEe7RoYPyXSbFw5Vs6Tw==}
+    dev: false
+
   /@msgpackr-extract/msgpackr-extract-darwin-arm64@3.0.2:
     resolution: {integrity: sha512-9bfjwDxIDWmmOKusUcqdS4Rw+SETlp9Dy39Xui9BEGEk19dDwH0jhipwFzEff/pFg95NKymc6TOTbRKcWeRqyQ==}
     cpu: [arm64]
diff --git a/src/ts/process/infunctions.ts b/src/ts/process/infunctions.ts
new file mode 100644
index 00000000..4c88d446
--- /dev/null
+++ b/src/ts/process/infunctions.ts
@@ -0,0 +1,84 @@
+
+function toRPN(expression:string) {
+    let outputQueue = '';
+    let operatorStack = [];
+    let operators = {
+        '+': {precedence: 2, associativity: 'Left'},
+        '-': {precedence: 2, associativity: 'Left'},
+        '*': {precedence: 3, associativity: 'Left'},
+        '/': {precedence: 3, associativity: 'Left'}
+    };
+
+    expression = expression.replace(/\s+/g, '');
+    let expression2 = expression.split(/([\+\-\*\/])/).filter(token => token);
+
+    expression2.forEach(token => {
+        if (parseFloat(token) || token === '0') {
+            outputQueue += token + ' ';
+        } else if ('+-*/'.includes(token)) {
+            while (operatorStack.length > 0 &&
+            ((operators[token].associativity === 'Left' &&
+            operators[token].precedence <= operators[operatorStack[operatorStack.length - 1]].precedence) ||
+            (operators[token].associativity === 'Right' &&
+            operators[token].precedence < operators[operatorStack[operatorStack.length - 1]].precedence))) {
+                outputQueue += operatorStack.pop() + ' ';
+            }
+
+            operatorStack.push(token);
+        }
+    });
+
+    while (operatorStack.length > 0) {
+        outputQueue += operatorStack.pop() + ' ';
+    }
+
+    return outputQueue.trim();
+}
+
+function calculateRPN(expression:string) {
+    let stack = [];
+
+    expression.split(' ').forEach(token => {
+        if (parseFloat(token) || token === '0') {
+            stack.push(parseFloat(token));
+        } else {
+            let [b, a] = [stack.pop(), stack.pop()];
+            switch (token) {
+                case '+': stack.push(a + b); break;
+                case '-': stack.push(a - b); break;
+                case '*': stack.push(a * b); break;
+                case '/': stack.push(a / b); break;
+            }
+        }
+    });
+
+    return stack.pop();
+}
+function parseAndExecuteFunctions(s: string): string {
+    const functionRegex = /\$(\w+)\((.*?)\)/g;
+
+    let match;
+    while ((match = functionRegex.exec(s)) !== null) {
+        let [fullMatch, funcName, args] = match;
+
+        let result = '';
+        switch (funcName) {
+            case 'calc':
+                result = calc(parseAndExecuteFunctions(args));
+                break;
+            default:
+                break;
+        }
+
+        s = s.replace(fullMatch, result.toString());
+        functionRegex.lastIndex = 0; // Reset the regex
+    }
+
+    return s;
+}
+
+function calc(args:string) {
+    const expression = toRPN(args);
+    const evaluated = calculateRPN(expression);
+    return evaluated
+}