1 files changed, 80 insertions, 0 deletions
diff --git a/src/utils/errors.c b/src/utils/errors.c
new file mode 100644
index 0000000..ac7dd42
--- /dev/null
+++ b/src/utils/errors.c
@@ -0,0 +1,80 @@
+/*
+ * This file is part of LibCSS.
+ * Licensed under the MIT License,
+ *                http://www.opensource.org/licenses/mit-license.php
+ * Copyright 2007 John-Mark Bell <jmb@netsurf-browser.org>
+ */
+
+#include <string.h>
+
+#include <libcss/errors.h>
+
+/**
+ * Convert a LibCSS error code to a string
+ *
+ * \param error  The error code to convert
+ * \return Pointer to string representation of error, or NULL if unknown.
+ */
+const char *css_error_to_string(css_error error)
+{
+	const char *result = NULL;
+
+	switch (error) {
+	case CSS_OK:
+		result = "No error";
+		break;
+	case CSS_NOMEM:
+		result = "Insufficient memory";
+		break;
+	case CSS_BADPARM:
+		result = "Bad parameter";
+		break;
+	case CSS_INVALID:
+		result = "Invalid input";
+		break;
+	case CSS_FILENOTFOUND:
+		result = "File not found";
+		break;
+	case CSS_NEEDDATA:
+		result = "Insufficient data";
+		break;
+	case CSS_BADCHARSET:
+		result = "BOM and @charset mismatch";
+		break;
+	case CSS_EOF:
+		result = "EOF encountered";
+		break;
+	}
+
+	return result;
+}
+
+/**
+ * Convert a string representation of an error name to a LibCSS error code
+ *
+ * \param str  String containing error name
+ * \param len  Length of string (bytes)
+ * \return LibCSS error code, or CSS_OK if unknown
+ */
+css_error css_error_from_string(const char *str, size_t len)
+{
+	if (strncmp(str, "CSS_OK", len) == 0) {
+		return CSS_OK;
+	} else if (strncmp(str, "CSS_NOMEM", len) == 0) {
+		return CSS_NOMEM;
+	} else if (strncmp(str, "CSS_BADPARM", len) == 0) {
+		return CSS_BADPARM;
+	} else if (strncmp(str, "CSS_INVALID", len) == 0) {
+		return CSS_INVALID;
+	} else if (strncmp(str, "CSS_FILENOTFOUND", len) == 0) {
+		return CSS_FILENOTFOUND;
+	} else if (strncmp(str, "CSS_NEEDDATA", len) == 0) {
+		return CSS_NEEDDATA;
+	} else if (strncmp(str, "CSS_BADCHARSET", len) == 0) {
+		return CSS_BADCHARSET;
+	} else if (strncmp(str, "CSS_EOF", len) == 0) {
+		return CSS_EOF;
+	}
+
+	return CSS_OK;
+}