Add heuristics for C and C++

gengo/languages.yaml

@@ -135,6 +135,9 @@ C:
   category: programming
   color: "#8888CC"
   nerd-font-glyph: "\U0000e61e"
+  heuristics:
+    - '(?m)^#include\s+<(stdio\.h|stdlib\.h|string\.h|math\.h)>'
+    - '(?m)^int\s+main\s*\(\s*(void|int\s+argc\s*,\s*char\s*\*\s*argv\[\s*\])\s*SW\)'
   matchers:
     extensions:
       - c
@@ -155,6 +158,11 @@ C:
   category: programming
   color: "#88CC88"
   nerd-font-glyph: "\U0000e61d"
+  heuristics:
+    - '(?m)^#include\s+<(iostream|vector|string|algorithm)>'
+    - '(?m)^(namespace\s+\w+\s*\{|using\s+namespace\s+\w+;)'
+    - '(?m)^(class|template|typename)\b'
+    - '(?m)\b(std::|nullptr|constexpr)\b'
   matchers:
     extensions:
       - c++

samples-test/samples/C++/progress-bar.cpp

@@ -0,0 +1,90 @@
+#include "progress-bar.h"
+#include <iostream>
+#include <sstream>
+
+ProgressBar::ProgressBar(char symbol, int length, int total)
+    : symbol(symbol)
+    , length(length)
+    , progress(0)
+    , total(total)
+    , startSymbol('[')
+    , endSymbol(']')
+    , format("{bar} {percent} {count}")
+    , showPercent(false)
+    , showCount(false) {}
+
+ProgressBar& ProgressBar::update(int progress) {
+    this->progress = progress;
+    return *this;
+}
+
+ProgressBar& ProgressBar::showPercentage(bool show) {
+    showPercent = show;
+    return *this;
+}
+
+ProgressBar& ProgressBar::showCounter(bool show) {
+    showCount = show;
+    return *this;
+}
+
+ProgressBar& ProgressBar::setStartEndSymbols(char start, char end) {
+    startSymbol = start;
+    endSymbol = end;
+    return *this;
+}
+
+ProgressBar& ProgressBar::setCustomFormat(const std::string& format) {
+    this->format = format;
+    return *this;
+}
+
+ProgressBar& ProgressBar::tick() {
+    progress++;
+    return *this;
+}
+
+void ProgressBar::print() const {
+    std::ostringstream bar;
+    std::string percent_str;
+    std::string count_str;
+    std::string result;
+
+    // Generate bar component
+    bar << startSymbol;
+    int scaled_progress = static_cast<int>(static_cast<float>(progress) * length / total);
+
+    for (int i = 0; i < length; i++) {
+        bar << (i < scaled_progress ? symbol : ' ');
+    }
+    bar << endSymbol;
+
+    // Generate percent component
+    int percent = (progress * 100) / total;
+    if (showPercent) {
+        percent_str = std::to_string(percent) + "%";
+    }
+
+    // Generate count component
+    if (showCount) {
+        count_str = std::to_string(progress) + "/" + std::to_string(total);
+    }
+
+    // Process format string
+    size_t pos = 0;
+    std::string formatStr = format;
+
+    // Replace placeholders with actual values
+    while ((pos = formatStr.find("{bar}")) != std::string::npos) {
+        formatStr.replace(pos, 5, bar.str());
+    }
+    while ((pos = formatStr.find("{percent}")) != std::string::npos) {
+        formatStr.replace(pos, 9, percent_str);
+    }
+    while ((pos = formatStr.find("{count}")) != std::string::npos) {
+        formatStr.replace(pos, 7, count_str);
+    }
+
+    std::cout << formatStr << (percent < 100 ? "\r" : "\n");
+    std::cout.flush();
+}

samples-test/samples/C++/progress-bar.h

@@ -0,0 +1,30 @@
+#ifndef PROGRESS_BAR_H
+#define PROGRESS_BAR_H
+
+#include <string>
+
+class ProgressBar {
+private:
+    char symbol;
+    char startSymbol;
+    char endSymbol;
+    int length;
+    int progress;
+    int total;
+    std::string format;
+    bool showPercent;
+    bool showCount;
+
+public:
+    ProgressBar(char symbol, int length, int total);
+
+    ProgressBar& update(int progress);
+    ProgressBar& showPercentage(bool show);
+    ProgressBar& showCounter(bool show);
+    ProgressBar& setStartEndSymbols(char start, char end);
+    ProgressBar& setCustomFormat(const std::string& format);
+    ProgressBar& tick();
+    void print() const;
+};
+
+#endif