diff options
Diffstat (limited to 'src/parse/properties/page.c')
-rw-r--r-- | src/parse/properties/page.c | 401 |
1 files changed, 0 insertions, 401 deletions
diff --git a/src/parse/properties/page.c b/src/parse/properties/page.c deleted file mode 100644 index d28ed15..0000000 --- a/src/parse/properties/page.c +++ /dev/null @@ -1,401 +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" - -/** - * Parse orphans - * - * \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_orphans(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 num = 0; - uint32_t required_size; - bool match; - - /* <integer> | IDENT (inherit) */ - token = parserutils_vector_iterate(vector, ctx); - if (token == NULL || (token->type != CSS_TOKEN_IDENT && - token->type != CSS_TOKEN_NUMBER)) { - *ctx = orig_ctx; - return CSS_INVALID; - } - - if ((lwc_string_caseless_isequal( - token->idata, c->strings[INHERIT], - &match) == lwc_error_ok && match)) { - flags |= FLAG_INHERIT; - } else if (token->type == CSS_TOKEN_NUMBER) { - size_t consumed = 0; - num = number_from_lwc_string(token->idata, true, &consumed); - /* Invalid if there are trailing characters */ - if (consumed != lwc_string_length(token->idata)) { - *ctx = orig_ctx; - return CSS_INVALID; - } - - /* Negative values are nonsensical */ - if (num < 0) { - *ctx = orig_ctx; - return CSS_INVALID; - } - - value = ORPHANS_SET; - } else { - *ctx = orig_ctx; - return CSS_INVALID; - } - - opv = buildOPV(CSS_PROP_ORPHANS, flags, value); - - required_size = sizeof(opv); - if ((flags & FLAG_INHERIT) == false && value == ORPHANS_SET) - required_size += sizeof(num); - - /* 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 == ORPHANS_SET) { - memcpy(((uint8_t *) (*result)->bytecode) + sizeof(opv), - &num, sizeof(num)); - } - - return CSS_OK; -} - -/** - * Parse page-break-after - * - * \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_page_break_after(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 (auto, always, avoid, left, right, 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[AUTO], - &match) == lwc_error_ok && match)) { - value = PAGE_BREAK_AFTER_AUTO; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[ALWAYS], - &match) == lwc_error_ok && match)) { - value = PAGE_BREAK_AFTER_ALWAYS; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[AVOID], - &match) == lwc_error_ok && match)) { - value = PAGE_BREAK_AFTER_AVOID; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[LEFT], - &match) == lwc_error_ok && match)) { - value = PAGE_BREAK_AFTER_LEFT; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[RIGHT], - &match) == lwc_error_ok && match)) { - value = PAGE_BREAK_AFTER_RIGHT; - } else { - *ctx = orig_ctx; - return CSS_INVALID; - } - - opv = buildOPV(CSS_PROP_PAGE_BREAK_AFTER, 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 page-break-before - * - * \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_page_break_before(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 (auto, always, avoid, left, right, 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[AUTO], - &match) == lwc_error_ok && match)) { - value = PAGE_BREAK_BEFORE_AUTO; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[ALWAYS], - &match) == lwc_error_ok && match)) { - value = PAGE_BREAK_BEFORE_ALWAYS; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[AVOID], - &match) == lwc_error_ok && match)) { - value = PAGE_BREAK_BEFORE_AVOID; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[LEFT], - &match) == lwc_error_ok && match)) { - value = PAGE_BREAK_BEFORE_LEFT; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[RIGHT], - &match) == lwc_error_ok && match)) { - value = PAGE_BREAK_BEFORE_RIGHT; - } else { - *ctx = orig_ctx; - return CSS_INVALID; - } - - opv = buildOPV(CSS_PROP_PAGE_BREAK_BEFORE, 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 page-break-inside - * - * \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_page_break_inside(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 (auto, avoid, 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[AUTO], - &match) == lwc_error_ok && match)) { - value = PAGE_BREAK_INSIDE_AUTO; - } else if ((lwc_string_caseless_isequal( - ident->idata, c->strings[AVOID], - &match) == lwc_error_ok && match)) { - value = PAGE_BREAK_INSIDE_AVOID; - } else { - *ctx = orig_ctx; - return CSS_INVALID; - } - - opv = buildOPV(CSS_PROP_PAGE_BREAK_INSIDE, 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 widows - * - * \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_widows(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 num = 0; - uint32_t required_size; - bool match; - - /* <integer> | IDENT (inherit) */ - token = parserutils_vector_iterate(vector, ctx); - if (token == NULL || (token->type != CSS_TOKEN_IDENT && - token->type != CSS_TOKEN_NUMBER)) { - *ctx = orig_ctx; - return CSS_INVALID; - } - - if ((lwc_string_caseless_isequal( - token->idata, c->strings[INHERIT], - &match) == lwc_error_ok && match)) { - flags |= FLAG_INHERIT; - } else if (token->type == CSS_TOKEN_NUMBER) { - size_t consumed = 0; - num = number_from_lwc_string(token->idata, true, &consumed); - /* Invalid if there are trailing characters */ - if (consumed != lwc_string_length(token->idata)) { - *ctx = orig_ctx; - return CSS_INVALID; - } - - /* Negative values are nonsensical */ - if (num < 0) { - *ctx = orig_ctx; - return CSS_INVALID; - } - - value = WIDOWS_SET; - } else { - *ctx = orig_ctx; - return CSS_INVALID; - } - - opv = buildOPV(CSS_PROP_WIDOWS, flags, value); - - required_size = sizeof(opv); - if ((flags & FLAG_INHERIT) == false && value == WIDOWS_SET) - required_size += sizeof(num); - - /* 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 == WIDOWS_SET) { - memcpy(((uint8_t *) (*result)->bytecode) + sizeof(opv), - &num, sizeof(num)); - } - - return CSS_OK; -} - |