Initial commit

FormFeedRemove_0.3-Robinson.cpp

@@ -0,0 +1,75 @@
+#include <iostream>
+#include <fstream>
+#include <vector>
+#include <algorithm>
+#include <string>
+#include <cctype>
+#include <iterator>
+
+int main(int argc, char* argv[]) {
+    if (argc < 3) {
+        std::cerr << "Usage: " << argv[0] << " <inputfile> <outputfile>\n";
+        return 1;
+    }
+
+    // Read file into buffer
+    std::ifstream infile(argv[1], std::ios::binary);
+    if (!infile) {
+        std::cerr << "Error opening input file.\n";
+        return 1;
+    }
+    std::vector<char> buffer((std::istreambuf_iterator<char>(infile)),
+                             std::istreambuf_iterator<char>());
+    infile.close();
+
+    if (buffer.empty()) {
+        std::cerr << "Input file is empty.\n";
+        return 1;
+    }
+
+    // 1) Remove all ASCII 155 (0x9B)
+    buffer.erase(std::remove_if(buffer.begin(), buffer.end(),
+                                [](char c){ return static_cast<unsigned char>(c) == 155 || (c) == 62; }),
+                 buffer.end());
+
+    // 2) Remove form feed (0x0C) from the last 16 bytes only
+    if (!buffer.empty()) {
+        size_t start = (buffer.size() > 16) ? buffer.size() - 16 : 0;
+        buffer.erase(std::remove(buffer.begin() + start, buffer.end(), (char)12), buffer.end());
+    }
+
+    // 3) Remove one space preceding every occurrence of: digit '/' space digit
+    //    i.e. remove the single space immediately before the pattern "x/ x" (x = digit)
+    std::vector<char> out;
+    out.reserve(buffer.size());
+
+    const size_t n = buffer.size();
+    for (size_t i = 0; i < n; ++i) {
+        // If current char is a space and the next 4 characters exist and match:
+        // [digit] '/' ' ' [digit] starting at i+1  -> remove this current space (skip it)
+        if (buffer[i] == ' ' && i + 4 < n &&
+            std::isdigit(static_cast<unsigned char>(buffer[i + 1])) &&
+            buffer[i + 2] == '/' &&
+            buffer[i + 3] == ' ' &&
+            std::isdigit(static_cast<unsigned char>(buffer[i + 4]))) {
+            // skip this single space (do not push it to out)
+            continue;
+        }
+
+        // Otherwise, keep the character
+        out.push_back(buffer[i]);
+    }
+
+    // 4) Write output
+    std::ofstream outfile(argv[2], std::ios::binary);
+    if (!outfile) {
+        std::cerr << "Error opening output file.\n";
+        return 1;
+    }
+    if (!out.empty()) {
+        outfile.write(out.data(), out.size());
+    }
+    outfile.close();
+
+    return 0;
+}