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Diffstat (limited to 'src/parse/properties/positioning.c')
-rw-r--r-- | src/parse/properties/positioning.c | 540 |
1 files changed, 0 insertions, 540 deletions
diff --git a/src/parse/properties/positioning.c b/src/parse/properties/positioning.c deleted file mode 100644 index 9e5ac73..0000000 --- a/src/parse/properties/positioning.c +++ /dev/null @@ -1,540 +0,0 @@ -/* - * 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 <string.h> - -#include "bytecode/bytecode.h" -#include "bytecode/opcodes.h" -#include "parse/properties/properties.h" -#include "parse/properties/utils.h" - -static css_error parse_side(css_language *c, - const parserutils_vector *vector, int *ctx, - uint16_t op, css_style **result); - -/** - * Parse bottom - * - * \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_bottom(css_language *c, - const parserutils_vector *vector, int *ctx, - css_style **result) -{ - return parse_side(c, vector, ctx, CSS_PROP_BOTTOM, result); -} - -/** - * Parse left - * - * \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_left(css_language *c, - const parserutils_vector *vector, int *ctx, - css_style **result) -{ - return parse_side(c, vector, ctx, CSS_PROP_LEFT, result); -} - -/** - * Parse right - * - * \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_right(css_language *c, - const parserutils_vector *vector, int *ctx, - css_style **result) -{ - return parse_side(c, vector, ctx, CSS_PROP_RIGHT, result); -} - -/** - * Parse top - * - * \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_top(css_language *c, - const parserutils_vector *vector, int *ctx, - css_style **result) -{ - return parse_side(c, vector, ctx, CSS_PROP_TOP, result); -} - -/** - * Parse position - * - * \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_position(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 (static, relative, absolute, fixed, 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[LIBCSS_STATIC], - &match) == lwc_error_ok && match)) { - value = POSITION_STATIC; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[RELATIVE], - &match) == lwc_error_ok && match)) { - value = POSITION_RELATIVE; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[ABSOLUTE], - &match) == lwc_error_ok && match)) { - value = POSITION_ABSOLUTE; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[FIXED], - &match) == lwc_error_ok && match)) { - value = POSITION_FIXED; - } else { - *ctx = orig_ctx; - return CSS_INVALID; - } - - opv = buildOPV(CSS_PROP_POSITION, 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; -} - -/** - * Parse clear - * - * \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_clear(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 (left, right, both, 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[RIGHT], - &match) == lwc_error_ok && match)) { - value = CLEAR_RIGHT; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[LEFT], - &match) == lwc_error_ok && match)) { - value = CLEAR_LEFT; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[BOTH], - &match) == lwc_error_ok && match)) { - value = CLEAR_BOTH; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[NONE], - &match) == lwc_error_ok && match)) { - value = CLEAR_NONE; - } else { - *ctx = orig_ctx; - return CSS_INVALID; - } - - opv = buildOPV(CSS_PROP_CLEAR, 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; -} - -/** - * Parse float - * - * \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_float(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 (left, right, 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[LEFT], - &match) == lwc_error_ok && match)) { - value = FLOAT_LEFT; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[RIGHT], - &match) == lwc_error_ok && match)) { - value = FLOAT_RIGHT; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[NONE], - &match) == lwc_error_ok && match)) { - value = FLOAT_NONE; - } else { - *ctx = orig_ctx; - return CSS_INVALID; - } - - opv = buildOPV(CSS_PROP_FLOAT, 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; -} - -/** - * Parse vertical-align - * - * \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_vertical_align(css_language *c, - const parserutils_vector *vector, int *ctx, - css_style **result) -{ - int orig_ctx = *ctx; - css_error error; - const css_token *token; - uint8_t flags = 0; - uint16_t value = 0; - uint32_t opv; - css_fixed length = 0; - uint32_t unit = 0; - uint32_t required_size; - bool match; - - /* length | percentage | IDENT(baseline, sub, super, top, text-top, - * middle, bottom, text-bottom, inherit) - */ - token = parserutils_vector_peek(vector, *ctx); - if (token == NULL) { - *ctx = orig_ctx; - return CSS_INVALID; - } - - if (token->type == CSS_TOKEN_IDENT && - (lwc_string_caseless_isequal( - token->idata, c->strings[INHERIT], - &match) == lwc_error_ok && match)) { - parserutils_vector_iterate(vector, ctx); - flags = FLAG_INHERIT; - } else if (token->type == CSS_TOKEN_IDENT && - (lwc_string_caseless_isequal( - token->idata, c->strings[BASELINE], - &match) == lwc_error_ok && match)) { - parserutils_vector_iterate(vector, ctx); - value = VERTICAL_ALIGN_BASELINE; - } else if (token->type == CSS_TOKEN_IDENT && - (lwc_string_caseless_isequal( - token->idata, c->strings[SUB], - &match) == lwc_error_ok && match)) { - parserutils_vector_iterate(vector, ctx); - value = VERTICAL_ALIGN_SUB; - } else if (token->type == CSS_TOKEN_IDENT && - (lwc_string_caseless_isequal( - token->idata, c->strings[SUPER], - &match) == lwc_error_ok && match)) { - parserutils_vector_iterate(vector, ctx); - value = VERTICAL_ALIGN_SUPER; - } else if (token->type == CSS_TOKEN_IDENT && - (lwc_string_caseless_isequal( - token->idata, c->strings[TOP], - &match) == lwc_error_ok && match)) { - parserutils_vector_iterate(vector, ctx); - value = VERTICAL_ALIGN_TOP; - } else if (token->type == CSS_TOKEN_IDENT && - (lwc_string_caseless_isequal( - token->idata, c->strings[TEXT_TOP], - &match) == lwc_error_ok && match)) { - parserutils_vector_iterate(vector, ctx); - value = VERTICAL_ALIGN_TEXT_TOP; - } else if (token->type == CSS_TOKEN_IDENT && - (lwc_string_caseless_isequal( - token->idata, c->strings[MIDDLE], - &match) == lwc_error_ok && match)) { - parserutils_vector_iterate(vector, ctx); - value = VERTICAL_ALIGN_MIDDLE; - } else if (token->type == CSS_TOKEN_IDENT && - (lwc_string_caseless_isequal( - token->idata, c->strings[BOTTOM], - &match) == lwc_error_ok && match)) { - parserutils_vector_iterate(vector, ctx); - value = VERTICAL_ALIGN_BOTTOM; - } else if (token->type == CSS_TOKEN_IDENT && - (lwc_string_caseless_isequal( - token->idata, c->strings[TEXT_BOTTOM], - &match) == lwc_error_ok && match)) { - parserutils_vector_iterate(vector, ctx); - value = VERTICAL_ALIGN_TEXT_BOTTOM; - } else { - error = parse_unit_specifier(c, vector, ctx, UNIT_PX, - &length, &unit); - if (error != CSS_OK) { - *ctx = orig_ctx; - return error; - } - - if (unit & UNIT_ANGLE || unit & UNIT_TIME || unit & UNIT_FREQ) { - *ctx = orig_ctx; - return CSS_INVALID; - } - - value = VERTICAL_ALIGN_SET; - } - - opv = buildOPV(CSS_PROP_VERTICAL_ALIGN, flags, value); - - required_size = sizeof(opv); - if ((flags & FLAG_INHERIT) == false && value == VERTICAL_ALIGN_SET) - required_size += sizeof(length) + sizeof(unit); - - /* Allocate result */ - error = css_stylesheet_style_create(c->sheet, required_size, result); - if (error != CSS_OK) { - *ctx = orig_ctx; - return error; - } - - /* Copy the bytecode to it */ - memcpy((*result)->bytecode, &opv, sizeof(opv)); - if ((flags & FLAG_INHERIT) == false && value == VERTICAL_ALIGN_SET) { - memcpy(((uint8_t *) (*result)->bytecode) + sizeof(opv), - &length, sizeof(length)); - memcpy(((uint8_t *) (*result)->bytecode) + sizeof(opv) + - sizeof(length), &unit, sizeof(unit)); - } - - return CSS_OK; -} - -/** - * Parse {top,right,bottom,left} - * - * \param c Parsing context - * \param vector Vector of tokens to process - * \param ctx Pointer to vector iteration context - * \param op Opcode to parse for - * \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_side(css_language *c, - const parserutils_vector *vector, int *ctx, - uint16_t op, css_style **result) -{ - int orig_ctx = *ctx; - css_error error; - const css_token *token; - uint8_t flags = 0; - uint16_t value = 0; - uint32_t opv; - css_fixed length = 0; - uint32_t unit = 0; - uint32_t required_size; - bool match; - - /* length | percentage | IDENT(auto, inherit) */ - token = parserutils_vector_peek(vector, *ctx); - if (token == NULL) { - *ctx = orig_ctx; - return CSS_INVALID; - } - - if (token->type == CSS_TOKEN_IDENT && - (lwc_string_caseless_isequal( - token->idata, c->strings[INHERIT], - &match) == lwc_error_ok && match)) { - parserutils_vector_iterate(vector, ctx); - flags = FLAG_INHERIT; - } else if (token->type == CSS_TOKEN_IDENT && - (lwc_string_caseless_isequal( - token->idata, c->strings[AUTO], - &match) == lwc_error_ok && match)) { - parserutils_vector_iterate(vector, ctx); - value = BOTTOM_AUTO; - } else { - error = parse_unit_specifier(c, vector, ctx, UNIT_PX, - &length, &unit); - if (error != CSS_OK) { - *ctx = orig_ctx; - return error; - } - - if (unit & UNIT_ANGLE || unit & UNIT_TIME || unit & UNIT_FREQ) { - *ctx = orig_ctx; - return CSS_INVALID; - } - - value = BOTTOM_SET; - } - - opv = buildOPV(op, flags, value); - - required_size = sizeof(opv); - if ((flags & FLAG_INHERIT) == false && value == BOTTOM_SET) - required_size += sizeof(length) + sizeof(unit); - - /* Allocate result */ - error = css_stylesheet_style_create(c->sheet, required_size, result); - if (error != CSS_OK) { - *ctx = orig_ctx; - return error; - } - - /* Copy the bytecode to it */ - memcpy((*result)->bytecode, &opv, sizeof(opv)); - if ((flags & FLAG_INHERIT) == false && value == BOTTOM_SET) { - memcpy(((uint8_t *) (*result)->bytecode) + sizeof(opv), - &length, sizeof(length)); - memcpy(((uint8_t *) (*result)->bytecode) + sizeof(opv) + - sizeof(length), &unit, sizeof(unit)); - } - - return CSS_OK; -} - |