adding 'php' port

Author: getify

README.md

@@ -1,20 +1,20 @@
 # JSON-minify
 
-A port of the `JSON-minify` utility to the [target-language-name] language.
+A port of the `JSON-minify` utility to the PHP language.
 
 ## Overview
 
 `JSON-minify` minifies blocks of JSON-like content into valid JSON by removing all whitespace *and* JS-style comments (single-line `//` and multiline `/* .. */`).
 
 With `JSON-minify`, you can maintain developer-friendly JSON documents, but minify them before parsing or transmitting them over-the-wire.
 
-## Porting
-
-Please see [PORTING.md](PORTING.md) for instructions.
-
 ## Testing
 
-Please see [TESTING.md](TESTING.md) for example tests.
+To run the tests:
+
+```
+php tests.php
+```
 
 ## License
 

minify.json.php

@@ -0,0 +1,57 @@
+<?php
+
+/*! JSON.minify()
+	v0.1 (c) Kyle Simpson
+	MIT License
+*/
+
+function json_minify($json) {
+	$tokenizer = "/\"|(\/\*)|(\*\/)|(\/\/)|\n|\r/";
+	$in_string = false;
+	$in_multiline_comment = false;
+	$in_singleline_comment = false;
+	$tmp; $tmp2; $new_str = array(); $ns = 0; $from = 0; $lc; $rc; $lastIndex = 0;
+
+	while (preg_match($tokenizer,$json,$tmp,PREG_OFFSET_CAPTURE,$lastIndex)) {
+		$tmp = $tmp[0];
+		$lastIndex = $tmp[1] + strlen($tmp[0]);
+		$lc = substr($json,0,$lastIndex - strlen($tmp[0]));
+		$rc = substr($json,$lastIndex);
+		if (!$in_multiline_comment && !$in_singleline_comment) {
+			$tmp2 = substr($lc,$from);
+			if (!$in_string) {
+				$tmp2 = preg_replace("/(\n|\r|\s)*/","",$tmp2);
+			}
+			$new_str[] = $tmp2;
+		}
+		$from = $lastIndex;
+
+		if ($tmp[0] == "\"" && !$in_multiline_comment && !$in_singleline_comment) {
+			preg_match("/(\\\\)*$/",$lc,$tmp2);
+			if (!$in_string || !$tmp2 || (strlen($tmp2[0]) % 2) == 0) {	// start of string with ", or unescaped " character found to end string
+				$in_string = !$in_string;
+			}
+			$from--; // include " character in next catch
+			$rc = substr($json,$from);
+		}
+		else if ($tmp[0] == "/*" && !$in_string && !$in_multiline_comment && !$in_singleline_comment) {
+			$in_multiline_comment = true;
+		}
+		else if ($tmp[0] == "*/" && !$in_string && $in_multiline_comment && !$in_singleline_comment) {
+			$in_multiline_comment = false;
+		}
+		else if ($tmp[0] == "//" && !$in_string && !$in_multiline_comment && !$in_singleline_comment) {
+			$in_singleline_comment = true;
+		}
+		else if (($tmp[0] == "\n" || $tmp[0] == "\r") && !$in_string && !$in_multiline_comment && $in_singleline_comment) {
+			$in_singleline_comment = false;
+		}
+		else if (!$in_multiline_comment && !$in_singleline_comment && !(preg_match("/\n|\r|\s/",$tmp[0]))) {
+			$new_str[] = $tmp[0];
+		}
+	}
+	$new_str[] = $rc;
+	return implode("",$new_str);
+}
+
+?>

tests.php

@@ -0,0 +1,68 @@
+<?php
+
+require_once("./minify.json.php");
+
+$tests = array(
+	array(
+		"source" => "
+			// this is a JSON file with comments
+			{
+				\"foo\": \"bar\",	// this is cool
+				\"bar\": [
+					\"baz\", \"bum\", \"zam\"
+				],
+			/* the rest of this document is just fluff
+			   in case you are interested. */
+				\"something\": 10,
+				\"else\": 20
+			}
+
+			/* NOTE: You can easily strip the whitespace and comments
+			   from such a file with the JSON.minify() project hosted
+			   here on github at http://github.com/getify/JSON.minify
+			*/\n",
+		"assert" => "{\"foo\":\"bar\",\"bar\":[\"baz\",\"bum\",\"zam\"],\"something\":10,\"else\":20}"
+	),
+	array(
+		"source" => "
+			\n
+			{\"/*\":\"*/\",\"//\":\"\",/*\"//\"*/\"/*/\"://
+			\"//\"}
+			\n",
+		"assert" => "{\"/*\":\"*/\",\"//\":\"\",\"/*/\":\"//\"}"
+	),
+	array(
+		"source" => "
+			/*
+			this is a
+			multi line comment */{
+			\n
+			\"foo\"
+			:
+				\"bar/*\"// something
+				,	\"b\\\"az\":/*
+			something else */\"blah\"
+			\n
+			}\n",
+		"assert" => "{\"foo\":\"bar/*\",\"b\\\"az\":\"blah\"}"
+	),
+	array(
+		"source" => "
+			{\"foo\": \"ba\\\"r//\", \"bar\\\\\": \"b\\\\\\\"a/*z\",
+				\"baz\\\\\\\\\": /* yay */ \"fo\\\\\\\\\\\"*/o\"
+			}\n",
+		"assert" => "{\"foo\":\"ba\\\"r//\",\"bar\\\\\":\"b\\\\\\\"a/*z\",\"baz\\\\\\\\\":\"fo\\\\\\\\\\\"*/o\"}"
+	)
+);
+
+foreach ($tests as $idx => $test) {
+	$res = json_minify($test["source"]);
+	if ($test["assert"] !== $res) {
+		throw new Exception("Test (" . ($idx + 1) . ") failed:\n  " . $res);
+	}
+	echo "Test " . ($idx + 1) . " passed\n";
+}
+
+echo "Done.\n";
+
+?>