add extension to write to cba_settings.sqf file

extensions/cba_settings/cba_settings.cpp

@@ -0,0 +1,335 @@
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <algorithm>
+#include "trim.h"
+
+#define VERSION "1.0.0"
+
+#define RET \
+strncpy_s(output, outputSize, result.c_str(), _TRUNCATE);\
+return
+
+#define RETURN(val)\
+strncpy_s(output, outputSize, result.c_str(), _TRUNCATE);\
+return (val)
+
+#define SYNTAX_ERROR_WRONG_PARAMS_SIZE 101
+#define SYNTAX_ERROR_WRONG_PARAMS_TYPE 102
+#define PARAMS_ERROR_TOO_MANY_ARGS 201
+#define EXECUTION_WARNING_TAKES_TOO_LONG 301
+
+#define TEMP_FILE "userconfig/temp"
+#define SETTINGS_FILE "userconfig/cba_settings.sqf"
+#define DELIM ":"
+#define MAX_CALLBACK_LENGTH 10000
+
+using namespace std;
+
+string version() {
+    return VERSION;
+}
+
+string clear() {
+    ofstream file;
+    file.open(SETTINGS_FILE, ios::out);
+    file.close();
+    return "true";
+}
+
+string load(int strlen) {
+    string result = "";
+
+    ifstream file;
+    file.open(SETTINGS_FILE, ios::in);
+
+    string line;
+    while (file.good()) {
+        getline(file, line);
+        if (file.good() || line.length() != 0) // Don't explode file by appending duplicate additional newlines.
+            result = result + trim(line) + "\n";
+    }
+
+    file.close();
+
+    if (strlen * MAX_CALLBACK_LENGTH > result.length())
+        return "";
+
+    result = result.substr(strlen * MAX_CALLBACK_LENGTH, MAX_CALLBACK_LENGTH);
+    return result;
+}
+
+string parse(int strlen) {
+    string result = "[";
+
+    ifstream file;
+    file.open(SETTINGS_FILE, ios::in);
+
+    string line;
+    while (file.good()) {
+        getline(file, line);
+        line = trim_left(line);
+
+        // Ignore commented out lines.
+        if (line.substr(0, 2) == "//")
+            continue;
+
+        // Count force tags.
+        int force = 0;
+        while (line.substr(0, 6) == "force ") {
+            force++;
+            line = line.substr(6);
+            line = trim_left(line);
+        }
+
+        // Get setting.
+        size_t i = line.find("=");
+        if (i == string::npos) // Ignore ill-formed line.
+            continue;
+
+        string item = line.substr(0, i);
+        item = trim_right(item);
+
+        // Get value.
+        string value = line.substr(i + 1);
+        value = trim(value);
+
+        while (value.back() == ';')
+            value.pop_back();
+
+        value = trim_right(value);
+
+        result = result + "[\"" + item + "\"," + value + "," + to_string(force) + "],";
+    }
+
+    file.close();
+
+    result.pop_back();
+    result.push_back(']');
+
+    if (strlen * MAX_CALLBACK_LENGTH > result.length())
+        return "";
+
+    result = result.substr(strlen * MAX_CALLBACK_LENGTH, MAX_CALLBACK_LENGTH);
+    return result;
+}
+
+string read(string setting) {
+    string result = "[\"\",false,-1]";
+
+    ifstream file;
+    file.open(SETTINGS_FILE, ios::in);
+
+    string line;
+    while (file.good()) {
+        getline(file, line);
+        line = trim_left(line);
+
+        // Ignore commented out lines.
+        if (line.substr(0, 2) == "//")
+            continue;
+
+        // Count force tags.
+        int force = 0;
+        while (line.substr(0, 6) == "force ") {
+            force++;
+            line = line.substr(6);
+            line = trim_left(line);
+        }
+
+        // Get setting.
+        size_t i = line.find("=");
+        if (i == string::npos) // Ignore ill-formed line.
+            continue;
+
+        string item = line.substr(0, i);
+        item = trim_right(item);
+
+        if (_stricmp(item.c_str(), setting.c_str()) == 0) {
+            // Get value.
+            string value = line.substr(i + 1);
+            value = trim(value);
+
+            while (value.back() == ';')
+                value.pop_back();
+
+            value = trim_right(value);
+
+            result = "[\"" + item + "\"," + value + "," + to_string(force) + "]";
+            break;
+        }
+    }
+
+    file.close();
+    return result;
+}
+
+string append(string setting, string value, int force) {
+    ofstream file;
+    file.open(SETTINGS_FILE, ios::app);
+
+    string line = "";
+    while (force-- > 0)
+        line = line + "force ";
+
+    line = line + setting + " = " + value + ";";
+
+    file << line << endl;
+    file.close();
+    return "true";
+}
+
+string write(string setting, string value, int force) {
+    string result = "false";
+
+    ofstream temp;
+    temp.open(string(TEMP_FILE).c_str(), ios::out);
+
+    ifstream file;
+    file.open(SETTINGS_FILE, ios::in);
+
+    string line;
+    while (file.good()) {
+        getline(file, line);
+        line = trim_left(line);
+        string orig = trim_right(line);
+
+        if (line.length() == 0 || result == "true") {
+            if (file.good()) // Don't explode file by appending duplicate additional newlines.
+                temp << orig << endl;
+
+            continue;
+        }
+
+        // Keep commented out lines.
+        if (line.substr(0, 2) == "//") {
+            temp << orig << endl;
+            continue;
+        }
+
+        // Strip force tags.
+        while (line.substr(0, 6) == "force ") {
+            line = line.substr(6);
+            line = trim_left(line);
+        }
+
+        // Get setting.
+        size_t i = line.find("=");
+        if (i == string::npos) // Remove ill-formed line.
+            continue;
+
+        string item = line.substr(0, i);
+        item = trim_right(item);
+
+        if (_stricmp(item.c_str(), setting.c_str()) == 0) {
+            // Updade matching lines.
+            line = "";
+            while (force-- > 0)
+                line = line + "force ";
+
+            line = line + setting + " = " + value + ";";
+
+            temp << line << endl;
+            result = "true";
+        } else {
+            // Keep non-matching lines.
+            temp << orig << endl;
+        }
+    }
+
+    temp.close();
+    file.close();
+
+    if (result == "true") {
+        remove(SETTINGS_FILE);
+        rename(TEMP_FILE, SETTINGS_FILE);
+    } else {
+        remove(TEMP_FILE);
+        result = append(setting, value, force);
+    };
+
+    return result;
+}
+
+extern "C" {
+    __declspec(dllexport) void __stdcall RVExtensionVersion(char* output, int outputSize);
+    __declspec(dllexport) void __stdcall RVExtension(char* output, int outputSize, const char* function);
+    __declspec(dllexport) int __stdcall RVExtensionArgs(char* output, int outputSize, const char* function, const char** args, int argsCnt);
+}
+
+void __stdcall RVExtensionVersion(char* output, int outputSize) {
+    strncpy_s(output, outputSize, VERSION, _TRUNCATE);
+}
+
+void __stdcall RVExtension(char* output, int outputSize, const char* function) {
+    string result = "false";
+
+    if (_stricmp(function, "version") == 0) {
+        result = version();
+        RET;
+    }
+
+    RET;
+}
+
+int __stdcall RVExtensionArgs(char* output, int outputSize, const char* function, const char** args, int argsCnt) {
+    string result = "false";
+
+    if (argsCnt > 3) {
+        RETURN(PARAMS_ERROR_TOO_MANY_ARGS);
+    }
+
+    string setting = "";
+    if (argsCnt >= 1) {
+        setting = args[0];
+        if (setting.substr(0, 1) == "\"") // Strip extra quote marks.
+            setting = setting.substr(1, setting.length() - 2);
+    }
+
+    string value = "";
+    if (argsCnt >= 2)
+        value = args[1];
+
+    int force = 0;
+    if (argsCnt >= 3)
+        force = min(stoi(args[2]), 2);
+
+    if (_stricmp(function, "version") == 0) {
+        result = version();
+        RETURN(0);
+    }
+
+    if (_stricmp(function, "clear") == 0) {
+        result = clear();
+        RETURN(0);
+    }
+
+    if (_stricmp(function, "load") == 0) {
+        int strlen = stoi(setting);
+        result = load(strlen);
+        RETURN(0);
+    }
+
+    if (_stricmp(function, "parse") == 0) {
+        int strlen = stoi(setting);
+        result = parse(strlen);
+        RETURN(0);
+    }
+
+    if (_stricmp(function, "read") == 0) {
+        result = read(setting);
+        RETURN(0);
+    }
+
+    if (_stricmp(function, "append") == 0) {
+        result = append(setting, value, force);
+        RETURN(0);
+    }
+
+    if (_stricmp(function, "write") == 0) {
+        result = write(setting, value, force);
+        RETURN(0);
+    }
+
+    RETURN(1);
+}

extensions/cba_settings/trim.h

@@ -0,0 +1,33 @@
+#include <string>
+
+using namespace std;
+
+const string WHITESPACE = " \n\r\f\t\v";
+
+string trim_left(string str) {
+    size_t first = str.find_first_not_of(WHITESPACE);
+
+    if (first == string::npos)
+        return "";
+    else
+        return str.substr(first);
+}
+
+string trim_right(string str) {
+    size_t last = str.find_last_not_of(WHITESPACE);
+
+    if (last == string::npos)
+        return "";
+    else
+        return str.substr(0, last + 1);
+}
+
+string trim(string str) {
+    size_t first = str.find_first_not_of(WHITESPACE);
+    size_t last = str.find_last_not_of(WHITESPACE);
+
+    if (first == last)
+        return "";
+    else
+        return str.substr(first, last - first + 1);
+}