rudimentary export options

2018-07-29 20:19:19 +02:00
parent 3bf9b68503
commit 1037f438ce
15 changed files with 522 additions and 103 deletions
@@ -0,0 +1,118 @@
+<?php
+
+
+namespace App\Tables;
+
+
+class CStructArrayExporter extends BaseExporter
+{
+    /**
+     * @return string - mime type for the downloaded file
+     */
+    protected function getMimeType()
+    {
+        return  $this->wantDownload ? 'text/x-csrc' : 'text/plain';
+    }
+
+    /**
+     * @return string - file extension for the downloaded file
+     */
+    protected function getFileExtension()
+    {
+        return 'c';
+    }
+
+    private function cify($name)
+    {
+        $name = preg_replace('/[^a-z0-9_]/i', '_', $name);
+        if (ctype_digit($name[0])) {
+            $name = '_' . $name;
+        }
+        return $name;
+    }
+
+    /**
+     * Write the document to stdout ('php://output')
+     */
+    protected function writeDocument()
+    {
+        $fields = array_map(function (Column $c) {
+            $type = $c->type;
+            if ($type == 'string') {
+                $type = 'const char *';
+            }
+
+            $name = $this->cify($c->name);
+
+            return (object)['name' => $c->name, 'type' => $c->type, 'ctype' => $type, 'cname' => $name];
+        }, $this->columns);
+
+        $ctablename = $this->cify($this->table->name);
+
+        // preamble
+        echo "#include <stdbool.h>\n\n";
+
+        echo "struct " . $ctablename . " {\n";
+        foreach ($fields as $field) {
+            echo "    " . $field->ctype . " " . $field->cname . ";\n";
+        }
+        echo "};\n\n";
+
+        // Now the table itself
+        echo "const struct ".$ctablename.' tbl_'.$ctablename."[] = {\n";
+
+        $first = true;
+        foreach ($this->iterateRows() as $row) {
+            if ($first) {
+                $first = false;
+            } else {
+                echo ",\n";
+            }
+
+            echo "    {";
+
+            $firstf = true;
+            foreach ($fields as $field) {
+                if ($firstf) {
+                    $firstf = false;
+                } else {
+                    echo ", ";
+                }
+
+                $val = 0;
+                switch ($field->type) {
+                    case 'string':
+                        $val = "";
+                        break;
+
+                    case 'bool':
+                        $val = false;
+                        break;
+                }
+
+                if (isset($row->{$field->name})) {
+                    $val = $row->{$field->name};
+                }
+
+                // export to C format
+                switch ($field->type) {
+                    case 'string':
+                        echo '"' . addcslashes($val, "\0..\37!@\@\177..\377") . '"';
+                        break;
+
+                    case 'bool':
+                        echo (int)$val;
+                        break;
+
+                    case 'int':
+                    case 'float':
+                        echo $val;
+                        break;
+                }
+            }
+            echo "}";
+        }
+
+        echo "\n};\n";
+    }
+}