/*
* 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 border-style shorthand
*
* \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 css__parse_border_style(css_language *c,
const parserutils_vector *vector, int *ctx,
css_style *result)
{
int orig_ctx = *ctx;
int prev_ctx;
const css_token *token;
uint16_t side_val[4];
uint32_t side_count = 0;
bool match;
css_error error;
/* Firstly, handle inherit */
token = parserutils_vector_peek(vector, *ctx);
if (token == NULL)
return CSS_INVALID;
if (is_css_inherit(c, token)) {
error = css_stylesheet_style_inherit(result, CSS_PROP_BORDER_TOP_STYLE);
if (error != CSS_OK)
return error;
error = css_stylesheet_style_inherit(result, CSS_PROP_BORDER_RIGHT_STYLE);
if (error != CSS_OK)
return error;
error = css_stylesheet_style_inherit(result, CSS_PROP_BORDER_BOTTOM_STYLE);
if (error != CSS_OK)
return error;
error = css_stylesheet_style_inherit(result, CSS_PROP_BORDER_LEFT_STYLE);
if (error == CSS_OK)
parserutils_vector_iterate(vector, ctx);
return error;
}
/* Attempt to parse up to 4 styles */
do {
prev_ctx = *ctx;
if ((token != NULL) && is_css_inherit(c, token)) {
*ctx = orig_ctx;
return CSS_INVALID;
}
if (token->type != CSS_TOKEN_IDENT)
break;
if ((lwc_string_caseless_isequal(token->idata, c->strings[NONE], &match) == lwc_error_ok && match)) {
side_val[side_count] = BORDER_STYLE_NONE;
} else if ((lwc_string_caseless_isequal(token->idata, c->strings[HIDDEN], &match) == lwc_error_ok && match)) {
side_val[side_count] = BORDER_STYLE_HIDDEN;
} else if ((lwc_string_caseless_isequal(token->idata, c->strings[DOTTED], &match) == lwc_error_ok && match)) {
side_val[side_count] = BORDER_STYLE_DOTTED;
} else if ((lwc_string_caseless_isequal(token->idata, c->strings[DASHED], &match) == lwc_error_ok && match)) {
side_val[side_count] = BORDER_STYLE_DASHED;
} else if ((lwc_string_caseless_isequal(token->idata, c->strings[SOLID], &match) == lwc_error_ok && match)) {
side_val[side_count] = BORDER_STYLE_SOLID;
} else if ((lwc_string_caseless_isequal(token->idata, c->strings[LIBCSS_DOUBLE], &match) == lwc_error_ok && match)) {
side_val[side_count] = BORDER_STYLE_DOUBLE;
} else if ((lwc_string_caseless_isequal(token->idata, c->strings[GROOVE], &match) == lwc_error_ok && match)) {
side_val[side_count] = BORDER_STYLE_GROOVE;
} else if ((lwc_string_caseless_isequal(token->idata, c->strings[RIDGE], &match) == lwc_error_ok && match)) {
side_val[side_count] = BORDER_STYLE_RIDGE;
} else if ((lwc_string_caseless_isequal(token->idata, c->strings[INSET], &match) == lwc_error_ok && match)) {
side_val[side_count] = BORDER_STYLE_INSET;
} else if ((lwc_string_caseless_isequal(token->idata, c->strings[OUTSET], &match) == lwc_error_ok && match)) {
side_val[side_count] = BORDER_STYLE_OUTSET;
} else {
break;
}
side_count++;
parserutils_vector_iterate(vector, ctx);
consumeWhitespace(vector, ctx);
token = parserutils_vector_peek(vector, *ctx);
} while ((*ctx != prev_ctx) && (token != NULL) && (side_count < 4));
#define SIDE_APPEND(OP,NUM) \
error = css__stylesheet_style_appendOPV(result, (OP), 0, side_val[(NUM)]); \
if (error != CSS_OK) \
break
switch (side_count) {
case 1:
SIDE_APPEND(CSS_PROP_BORDER_TOP_STYLE, 0);
SIDE_APPEND(CSS_PROP_BORDER_RIGHT_STYLE, 0);
SIDE_APPEND(CSS_PROP_BORDER_BOTTOM_STYLE, 0);
SIDE_APPEND(CSS_PROP_BORDER_LEFT_STYLE, 0);
break;
case 2:
SIDE_APPEND(CSS_PROP_BORDER_TOP_STYLE, 0);
SIDE_APPEND(CSS_PROP_BORDER_RIGHT_STYLE, 1);
SIDE_APPEND(CSS_PROP_BORDER_BOTTOM_STYLE, 0);
SIDE_APPEND(CSS_PROP_BORDER_LEFT_STYLE, 1);
break;
case 3:
SIDE_APPEND(CSS_PROP_BORDER_TOP_STYLE, 0);
SIDE_APPEND(CSS_PROP_BORDER_RIGHT_STYLE, 1);
SIDE_APPEND(CSS_PROP_BORDER_BOTTOM_STYLE, 2);
SIDE_APPEND(CSS_PROP_BORDER_LEFT_STYLE, 1);
break;
case 4:
SIDE_APPEND(CSS_PROP_BORDER_TOP_STYLE, 0);
SIDE_APPEND(CSS_PROP_BORDER_RIGHT_STYLE, 1);
SIDE_APPEND(CSS_PROP_BORDER_BOTTOM_STYLE, 2);
SIDE_APPEND(CSS_PROP_BORDER_LEFT_STYLE, 3);
break;
default:
error = CSS_INVALID;
break;
}
if (error != CSS_OK)
*ctx = orig_ctx;
return error;
}