From f3cf0f579347a16120df8fc1c1ec3cd1f4e6d44e Mon Sep 17 00:00:00 2001
From: Vincent Sanders <vince@netsurf-browser.org>
Date: Sun, 2 Jan 2011 23:20:31 +0000
Subject: simple properties split in parse similar to select in preparation for
 future generation

svn path=/trunk/libcss/; revision=11188
---
 src/parse/properties/text_decoration.c | 123 +++++++++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 src/parse/properties/text_decoration.c

(limited to 'src/parse/properties/text_decoration.c')

diff --git a/src/parse/properties/text_decoration.c b/src/parse/properties/text_decoration.c
new file mode 100644
index 0000000..0c63c39
--- /dev/null
+++ b/src/parse/properties/text_decoration.c
@@ -0,0 +1,123 @@
+/*
+ * This file is part of LibCSS.
+ * Licensed under the MIT License,
+ *		  http://www.opensource.org/licenses/mit-license.php
+ * Copyright 2009 John-Mark Bell <jmb@netsurf-browser.org>
+ */
+
+#include <assert.h>
+#include <string.h>
+
+#include "bytecode/bytecode.h"
+#include "bytecode/opcodes.h"
+#include "parse/properties/properties.h"
+#include "parse/properties/utils.h"
+
+/**
+ * Parse text-decoration
+ *
+ * \param c       Parsing context
+ * \param vector  Vector of tokens to process
+ * \param ctx     Pointer to vector iteration context
+ * \param result  Pointer to location to receive resulting style
+ * \return CSS_OK on success,
+ *         CSS_NOMEM on memory exhaustion,
+ *         CSS_INVALID if the input is not valid
+ *
+ * Post condition: \a *ctx is updated with the next token to process
+ *                 If the input is invalid, then \a *ctx remains unchanged.
+ */
+css_error parse_text_decoration(css_language *c, 
+		const parserutils_vector *vector, int *ctx, 
+		css_style **result)
+{
+	int orig_ctx = *ctx;
+	css_error error;
+	const css_token *ident;
+	uint8_t flags = 0;
+	uint16_t value = 0;
+	uint32_t opv;
+	bool match;
+
+	/* IDENT([ underline || overline || line-through || blink ])
+	 * | IDENT (none, inherit) */
+	ident = parserutils_vector_iterate(vector, ctx);
+	if (ident == NULL || ident->type != CSS_TOKEN_IDENT) {
+		*ctx = orig_ctx;
+		return CSS_INVALID;
+	}
+
+	if ((lwc_string_caseless_isequal(
+			ident->idata, c->strings[INHERIT],
+			&match) == lwc_error_ok && match)) {
+		flags |= FLAG_INHERIT;
+	} else if ((lwc_string_caseless_isequal(
+			ident->idata, c->strings[NONE],
+			&match) == lwc_error_ok && match)) {
+		value = TEXT_DECORATION_NONE;
+	} else {
+		while (ident != NULL) {
+			if ((lwc_string_caseless_isequal(
+					ident->idata, c->strings[UNDERLINE],
+					&match) == lwc_error_ok && match)) {
+				if ((value & TEXT_DECORATION_UNDERLINE) == 0)
+					value |= TEXT_DECORATION_UNDERLINE;
+				else {
+					*ctx = orig_ctx;
+					return CSS_INVALID;
+				}
+			} else if ((lwc_string_caseless_isequal(
+					ident->idata, c->strings[OVERLINE],
+					&match) == lwc_error_ok && match)) {
+				if ((value & TEXT_DECORATION_OVERLINE) == 0)
+					value |= TEXT_DECORATION_OVERLINE;
+				else {
+					*ctx = orig_ctx;
+					return CSS_INVALID;
+				}
+			} else if ((lwc_string_caseless_isequal(
+					ident->idata, c->strings[LINE_THROUGH],
+					&match) == lwc_error_ok && match)) {
+				if ((value & TEXT_DECORATION_LINE_THROUGH) == 0)
+					value |= TEXT_DECORATION_LINE_THROUGH;
+				else {
+					*ctx = orig_ctx;
+					return CSS_INVALID;
+				}
+			} else if ((lwc_string_caseless_isequal(
+					ident->idata, c->strings[BLINK],
+					&match) == lwc_error_ok && match)) {
+				if ((value & TEXT_DECORATION_BLINK) == 0)
+					value |= TEXT_DECORATION_BLINK;
+				else {
+					*ctx = orig_ctx;
+					return CSS_INVALID;
+				}
+			} else {
+				*ctx = orig_ctx;
+				return CSS_INVALID;
+			}
+
+			consumeWhitespace(vector, ctx);
+
+			ident = parserutils_vector_peek(vector, *ctx);
+			if (ident != NULL && ident->type != CSS_TOKEN_IDENT)
+				break;
+			ident = parserutils_vector_iterate(vector, ctx);
+		}
+	}
+
+	opv = buildOPV(CSS_PROP_TEXT_DECORATION, flags, value);
+
+	/* Allocate result */
+	error = css_stylesheet_style_create(c->sheet, sizeof(opv), result);
+	if (error != CSS_OK) {
+		*ctx = orig_ctx;
+		return error;
+	}
+
+	/* Copy the bytecode to it */
+	memcpy((*result)->bytecode, &opv, sizeof(opv));
+
+	return CSS_OK;
+}
-- 
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