colorizing

.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+    "files.associations": {
+        "source_location": "c"
+    }
+}

logfoo.c

@@ -59,28 +59,19 @@ const char* luaFormatCall(lua_State *L, char *line, size_t len, size_t *formatLe
     return lua_tolstring(L, -1 , formatLen);
 }
 
-// const char* luaColor(lua_State *L) {
-//     size_t textParaLen;
-//     const char *textParaStr;
-//     int colorPara;
-//     size_t textColorLen;
-//     char *textColorStr;
-
-//     textParaStr = luaL_checklstring(L, 1, &textParaLen);
-//     colorPara = luaL_checkinteger(L, 2);
-
-//     switch (colorPara) {
-//     case COLOR_RED:
-        
-//         //lua_pushlstring();
-//         break;
-//     default:
-//         fprintf(stderr, "LUA function 'format' did not return a string\n");
-//         exit(EXIT_LUAFILE_HANDLING);
-//     }
-// }
-
+static int luaColor(lua_State *L) {
+    size_t strLen, colorLen;
+    const char *str, *color;
+    str = luaL_checklstring(L, 1, &strLen);
+    color = luaL_checklstring(L, 2, &colorLen);
+    int retLen = strLen + colorLen + 7;
+    char ret[retLen];
+    sprintf(ret, "\033[%sm%s\033[0m", color, str);
+    
+    lua_pushlstring(L, ret, retLen);
 
+    return 1;
+}
 
 int main(int argc, char *argv[]) {
     if (argc != 3) {
@@ -111,6 +102,9 @@ int main(int argc, char *argv[]) {
         return EXIT_LUAFILE_HANDLING;
     }
 
+    lua_pushcfunction(L, luaColor);
+    lua_setglobal(L, "color");
+
     while ((bytesRead = getline(&line, &len, fp)) != -1) {
         size_t formatLen;
         const char *formatLine;

lua/messages.lua

@@ -3,5 +3,7 @@ function filter (line)
 end
 
 function format (line)
+    line = line:gsub("(IMAGE)", color("%1", "31;1;4"))
+    line = line:gsub("(gentoo)", color("%1", "32"))
     return line:match("\"([^\"]+)\"")
 end