From 3342c8e3bafba86ff1154db940891a3405cb1c30 Mon Sep 17 00:00:00 2001
From: Michael Drake <michael.drake@codethink.co.uk>
Date: Wed, 1 Aug 2018 15:38:49 +0100
Subject: HACKS for testing Media Queries parsing.

Top level stylesheets need to have their media query passed in.
So we need a way to parse standalone media queries.

This was hacked together to explore doing that.

However, it encounteded an issue where it seems the parseAtRule()
function in src/parse/parse.c doesn't handle the full grammar for
media queries.
---
 src/parse/language.c |  1 -
 src/parse/parse.c    | 19 +++++++++++++++++++
 src/parse/parse.h    |  2 ++
 3 files changed, 21 insertions(+), 1 deletion(-)

(limited to 'src/parse')

diff --git a/src/parse/language.c b/src/parse/language.c
index faafcfd..54fac9a 100644
--- a/src/parse/language.c
+++ b/src/parse/language.c
@@ -532,7 +532,6 @@ css_error handleStartAtRule(css_language *c, const parserutils_vector *vector)
 		css_mq_query *media = NULL;
 
 		/* any0 = media query */
-
 		error = css__mq_parse_media_list(
 				c->strings, vector, &ctx, &media);
 		if (error != CSS_OK)
diff --git a/src/parse/parse.c b/src/parse/parse.c
index 4cc1c98..d58e328 100644
--- a/src/parse/parse.c
+++ b/src/parse/parse.c
@@ -219,6 +219,25 @@ css_error css__parser_create_for_inline_style(const char *charset,
 			initial, parser);
 }
 
+/**
+ * Create a CSS parser for a media query
+ *
+ * \param charset     Charset of data, if known, or NULL
+ * \param cs_source   Source of charset information, or CSS_CHARSET_DEFAULT
+ * \param parser      Pointer to location to receive parser instance
+ * \return CSS_OK on success,
+ *         CSS_BADPARM on bad parameters,
+ *         CSS_NOMEM on memory exhaustion
+ */
+css_error css__parser_create_for_media_query(const char *charset,
+		css_charset_source cs_source, css_parser **parser)
+{
+	parser_state initial = { sAtRule, 0 };
+
+	return css__parser_create_internal(charset, cs_source,
+			initial, parser);
+}
+
 /**
  * Destroy a CSS parser
  *
diff --git a/src/parse/parse.h b/src/parse/parse.h
index 833aa51..e65f055 100644
--- a/src/parse/parse.h
+++ b/src/parse/parse.h
@@ -61,6 +61,8 @@ css_error css__parser_create(const char *charset, css_charset_source cs_source,
 		css_parser **parser);
 css_error css__parser_create_for_inline_style(const char *charset,
 		css_charset_source cs_source, css_parser **parser);
+css_error css__parser_create_for_media_query(const char *charset,
+		css_charset_source cs_source, css_parser **parser);
 css_error css__parser_destroy(css_parser *parser);
 
 css_error css__parser_setopt(css_parser *parser, css_parser_opttype type,
-- 
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