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author | John Mark Bell <jmb@netsurf-browser.org> | 2009-05-27 00:22:44 +0000 |
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committer | John Mark Bell <jmb@netsurf-browser.org> | 2009-05-27 00:22:44 +0000 |
commit | 23ed45441ad9ed4d66852aaa724dc5bd245c9a21 (patch) | |
tree | c2d2418f666eba57cd2eeb9bf94348f6a0c42d7e /src/parse/properties/boxsizing.c | |
parent | 7dd3ce5ee751ad583127f6239344c591d1fc1afc (diff) | |
download | libcss-23ed45441ad9ed4d66852aaa724dc5bd245c9a21.tar.gz libcss-23ed45441ad9ed4d66852aaa724dc5bd245c9a21.tar.bz2 |
Split out box sizing property parsers
svn path=/trunk/libcss/; revision=7567
Diffstat (limited to 'src/parse/properties/boxsizing.c')
-rw-r--r-- | src/parse/properties/boxsizing.c | 505 |
1 files changed, 505 insertions, 0 deletions
diff --git a/src/parse/properties/boxsizing.c b/src/parse/properties/boxsizing.c new file mode 100644 index 0000000..c5077fa --- /dev/null +++ b/src/parse/properties/boxsizing.c @@ -0,0 +1,505 @@ +/* + * 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" + +css_error parse_height(css_language *c, + const parserutils_vector *vector, int *ctx, + css_style **result) +{ + 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; + + /* length | percentage | IDENT(auto, inherit) */ + token = parserutils_vector_peek(vector, *ctx); + if (token == NULL) + return CSS_INVALID; + + if (token->type == CSS_TOKEN_IDENT && + token->ilower == c->strings[INHERIT]) { + parserutils_vector_iterate(vector, ctx); + flags = FLAG_INHERIT; + } else if (token->type == CSS_TOKEN_IDENT && + token->ilower == c->strings[AUTO]) { + parserutils_vector_iterate(vector, ctx); + value = HEIGHT_AUTO; + } else { + error = parse_unit_specifier(c, vector, ctx, UNIT_PX, + &length, &unit); + if (error != CSS_OK) + return error; + + if (unit & UNIT_ANGLE || unit & UNIT_TIME || unit & UNIT_FREQ) + return CSS_INVALID; + + /* Negative height is illegal */ + if (length < 0) + return CSS_INVALID; + + value = HEIGHT_SET; + } + + error = parse_important(c, vector, ctx, &flags); + if (error != CSS_OK) + return error; + + opv = buildOPV(CSS_PROP_HEIGHT, flags, value); + + required_size = sizeof(opv); + if ((flags & FLAG_INHERIT) == false && value == HEIGHT_SET) + required_size += sizeof(length) + sizeof(unit); + + /* Allocate result */ + error = css_stylesheet_style_create(c->sheet, required_size, result); + if (error != CSS_OK) + return error; + + /* Copy the bytecode to it */ + memcpy((*result)->bytecode, &opv, sizeof(opv)); + if ((flags & FLAG_INHERIT) == false && value == HEIGHT_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; +} + +css_error parse_line_height(css_language *c, + const parserutils_vector *vector, int *ctx, + css_style **result) +{ + 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; + + /* number | length | percentage | IDENT(normal, inherit) */ + token = parserutils_vector_peek(vector, *ctx); + if (token == NULL) + return CSS_INVALID; + + if (token->type == CSS_TOKEN_IDENT && + token->ilower == c->strings[INHERIT]) { + parserutils_vector_iterate(vector, ctx); + flags = FLAG_INHERIT; + } else if (token->type == CSS_TOKEN_IDENT && + token->ilower == c->strings[NORMAL]) { + parserutils_vector_iterate(vector, ctx); + value = LINE_HEIGHT_NORMAL; + } else if (token->type == CSS_TOKEN_NUMBER) { + size_t consumed = 0; + length = number_from_lwc_string(token->ilower, false, &consumed); + if (consumed != lwc_string_length(token->ilower)) + return CSS_INVALID; + + /* Negative values are illegal */ + if (length < 0) + return CSS_INVALID; + + parserutils_vector_iterate(vector, ctx); + value = LINE_HEIGHT_NUMBER; + } else { + error = parse_unit_specifier(c, vector, ctx, UNIT_PX, + &length, &unit); + if (error != CSS_OK) + return error; + + if (unit & UNIT_ANGLE || unit & UNIT_TIME || unit & UNIT_FREQ) + return CSS_INVALID; + + /* Negative values are illegal */ + if (length < 0) + return CSS_INVALID; + + value = LINE_HEIGHT_DIMENSION; + } + + error = parse_important(c, vector, ctx, &flags); + if (error != CSS_OK) + return error; + + opv = buildOPV(CSS_PROP_LINE_HEIGHT, flags, value); + + required_size = sizeof(opv); + if ((flags & FLAG_INHERIT) == false && value == LINE_HEIGHT_NUMBER) + required_size += sizeof(length); + else if ((flags & FLAG_INHERIT) == false && + value == LINE_HEIGHT_DIMENSION) + required_size += sizeof(length) + sizeof(unit); + + /* Allocate result */ + error = css_stylesheet_style_create(c->sheet, required_size, result); + if (error != CSS_OK) + return error; + + /* Copy the bytecode to it */ + memcpy((*result)->bytecode, &opv, sizeof(opv)); + if ((flags & FLAG_INHERIT) == false && (value == LINE_HEIGHT_NUMBER || + value == LINE_HEIGHT_DIMENSION)) + memcpy(((uint8_t *) (*result)->bytecode) + sizeof(opv), + &length, sizeof(length)); + if ((flags & FLAG_INHERIT) == false && value == LINE_HEIGHT_DIMENSION) + memcpy(((uint8_t *) (*result)->bytecode) + sizeof(opv) + + sizeof(length), &unit, sizeof(unit)); + + return CSS_OK; +} + +css_error parse_max_height(css_language *c, + const parserutils_vector *vector, int *ctx, + css_style **result) +{ + 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; + + /* length | percentage | IDENT(none, inherit) */ + token = parserutils_vector_peek(vector, *ctx); + if (token == NULL) + return CSS_INVALID; + + if (token->type == CSS_TOKEN_IDENT && + token->ilower == c->strings[INHERIT]) { + parserutils_vector_iterate(vector, ctx); + flags = FLAG_INHERIT; + } else if (token->type == CSS_TOKEN_IDENT && + token->ilower == c->strings[NONE]) { + parserutils_vector_iterate(vector, ctx); + value = MAX_HEIGHT_NONE; + } else { + error = parse_unit_specifier(c, vector, ctx, UNIT_PX, + &length, &unit); + if (error != CSS_OK) + return error; + + if (unit & UNIT_ANGLE || unit & UNIT_TIME || unit & UNIT_FREQ) + return CSS_INVALID; + + /* Negative values are illegal */ + if (length < 0) + return CSS_INVALID; + + value = MAX_HEIGHT_SET; + } + + error = parse_important(c, vector, ctx, &flags); + if (error != CSS_OK) + return error; + + opv = buildOPV(CSS_PROP_MAX_HEIGHT, flags, value); + + required_size = sizeof(opv); + if ((flags & FLAG_INHERIT) == false && value == MAX_HEIGHT_SET) + required_size += sizeof(length) + sizeof(unit); + + /* Allocate result */ + error = css_stylesheet_style_create(c->sheet, required_size, result); + if (error != CSS_OK) + return error; + + /* Copy the bytecode to it */ + memcpy((*result)->bytecode, &opv, sizeof(opv)); + if ((flags & FLAG_INHERIT) == false && value == MAX_HEIGHT_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; +} + +css_error parse_max_width(css_language *c, + const parserutils_vector *vector, int *ctx, + css_style **result) +{ + 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; + + /* length | percentage | IDENT(none, inherit) */ + token = parserutils_vector_peek(vector, *ctx); + if (token == NULL) + return CSS_INVALID; + + if (token->type == CSS_TOKEN_IDENT && + token->ilower == c->strings[INHERIT]) { + parserutils_vector_iterate(vector, ctx); + flags = FLAG_INHERIT; + } else if (token->type == CSS_TOKEN_IDENT && + token->ilower == c->strings[NONE]) { + parserutils_vector_iterate(vector, ctx); + value = MAX_WIDTH_NONE; + } else { + error = parse_unit_specifier(c, vector, ctx, UNIT_PX, + &length, &unit); + if (error != CSS_OK) + return error; + + if (unit & UNIT_ANGLE || unit & UNIT_TIME || unit & UNIT_FREQ) + return CSS_INVALID; + + /* Negative values are illegal */ + if (length < 0) + return CSS_INVALID; + + value = MAX_WIDTH_SET; + } + + error = parse_important(c, vector, ctx, &flags); + if (error != CSS_OK) + return error; + + opv = buildOPV(CSS_PROP_MAX_WIDTH, flags, value); + + required_size = sizeof(opv); + if ((flags & FLAG_INHERIT) == false && value == MAX_WIDTH_SET) + required_size += sizeof(length) + sizeof(unit); + + /* Allocate result */ + error = css_stylesheet_style_create(c->sheet, required_size, result); + if (error != CSS_OK) + return error; + + /* Copy the bytecode to it */ + memcpy((*result)->bytecode, &opv, sizeof(opv)); + if ((flags && FLAG_INHERIT) == false && value == MAX_WIDTH_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; +} + +css_error parse_min_height(css_language *c, + const parserutils_vector *vector, int *ctx, + css_style **result) +{ + 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; + + /* length | percentage | IDENT(inherit) */ + token = parserutils_vector_peek(vector, *ctx); + if (token == NULL) + return CSS_INVALID; + + if (token->type == CSS_TOKEN_IDENT && + token->ilower == c->strings[INHERIT]) { + parserutils_vector_iterate(vector, ctx); + flags = FLAG_INHERIT; + } else { + error = parse_unit_specifier(c, vector, ctx, UNIT_PX, + &length, &unit); + if (error != CSS_OK) + return error; + + if (unit & UNIT_ANGLE || unit & UNIT_TIME || unit & UNIT_FREQ) + return CSS_INVALID; + + /* Negative values are illegal */ + if (length < 0) + return CSS_INVALID; + + value = MIN_HEIGHT_SET; + } + + error = parse_important(c, vector, ctx, &flags); + if (error != CSS_OK) + return error; + + opv = buildOPV(CSS_PROP_MIN_HEIGHT, flags, value); + + required_size = sizeof(opv); + if ((flags & FLAG_INHERIT) == false && value == MIN_HEIGHT_SET) + required_size += sizeof(length) + sizeof(unit); + + /* Allocate result */ + error = css_stylesheet_style_create(c->sheet, required_size, result); + if (error != CSS_OK) + return error; + + /* Copy the bytecode to it */ + memcpy((*result)->bytecode, &opv, sizeof(opv)); + if ((flags & FLAG_INHERIT) == false && value == MIN_HEIGHT_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; +} + +css_error parse_min_width(css_language *c, + const parserutils_vector *vector, int *ctx, + css_style **result) +{ + 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; + + /* length | percentage | IDENT(inherit) */ + token = parserutils_vector_peek(vector, *ctx); + if (token == NULL) + return CSS_INVALID; + + if (token->type == CSS_TOKEN_IDENT && + token->ilower == c->strings[INHERIT]) { + parserutils_vector_iterate(vector, ctx); + flags = FLAG_INHERIT; + } else { + error = parse_unit_specifier(c, vector, ctx, UNIT_PX, + &length, &unit); + if (error != CSS_OK) + return error; + + if (unit & UNIT_ANGLE || unit & UNIT_TIME || unit & UNIT_FREQ) + return CSS_INVALID; + + /* Negative values are illegal */ + if (length < 0) + return CSS_INVALID; + + value = MIN_WIDTH_SET; + } + + error = parse_important(c, vector, ctx, &flags); + if (error != CSS_OK) + return error; + + opv = buildOPV(CSS_PROP_MIN_WIDTH, flags, value); + + required_size = sizeof(opv); + if ((flags & FLAG_INHERIT) == false && value == MIN_WIDTH_SET) + required_size += sizeof(length) + sizeof(unit); + + /* Allocate result */ + error = css_stylesheet_style_create(c->sheet, required_size, result); + if (error != CSS_OK) + return error; + + /* Copy the bytecode to it */ + memcpy((*result)->bytecode, &opv, sizeof(opv)); + if ((flags & FLAG_INHERIT) == false && value == MIN_WIDTH_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; +} + +css_error parse_width(css_language *c, + const parserutils_vector *vector, int *ctx, + css_style **result) +{ + 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; + + /* length | percentage | IDENT(auto, inherit) */ + token = parserutils_vector_peek(vector, *ctx); + if (token == NULL) + return CSS_INVALID; + + if (token->type == CSS_TOKEN_IDENT && + token->ilower == c->strings[INHERIT]) { + parserutils_vector_iterate(vector, ctx); + flags = FLAG_INHERIT; + } else if (token->type == CSS_TOKEN_IDENT && + token->ilower == c->strings[AUTO]) { + parserutils_vector_iterate(vector, ctx); + value = WIDTH_AUTO; + } else { + error = parse_unit_specifier(c, vector, ctx, UNIT_PX, + &length, &unit); + if (error != CSS_OK) + return error; + + if (unit & UNIT_ANGLE || unit & UNIT_TIME || unit & UNIT_FREQ) + return CSS_INVALID; + + /* Must be positive */ + if (length < 0) + return CSS_INVALID; + + value = WIDTH_SET; + } + + error = parse_important(c, vector, ctx, &flags); + if (error != CSS_OK) + return error; + + opv = buildOPV(CSS_PROP_WIDTH, flags, value); + + required_size = sizeof(opv); + if ((flags & FLAG_INHERIT) == false && value == WIDTH_SET) + required_size += sizeof(length) + sizeof(unit); + + /* Allocate result */ + error = css_stylesheet_style_create(c->sheet, required_size, result); + if (error != CSS_OK) + return error; + + /* Copy the bytecode to it */ + memcpy((*result)->bytecode, &opv, sizeof(opv)); + if ((flags & FLAG_INHERIT) == false && value == WIDTH_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; +} + |