Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3584 | sourcerer | 1 | /* |
| 2 | * This file is part of LibCSS. |
||
| 3 | * Licensed under the MIT License, |
||
| 4 | * http://www.opensource.org/licenses/mit-license.php |
||
| 5 | * Copyright 2009 John-Mark Bell |
||
| 6 | */ |
||
| 7 | |||
| 8 | #include |
||
| 9 | #include |
||
| 10 | |||
| 11 | #include "bytecode/bytecode.h" |
||
| 12 | #include "bytecode/opcodes.h" |
||
| 13 | #include "parse/properties/properties.h" |
||
| 14 | #include "parse/properties/utils.h" |
||
| 15 | |||
| 16 | /** |
||
| 17 | * Determine if a given voice-family ident is reserved |
||
| 18 | * |
||
| 19 | * \param c Parsing context |
||
| 20 | * \param ident IDENT to consider |
||
| 21 | * \return True if IDENT is reserved, false otherwise |
||
| 22 | */ |
||
| 23 | static bool voice_family_reserved(css_language *c, const css_token *ident) |
||
| 24 | { |
||
| 25 | bool match; |
||
| 26 | |||
| 27 | return (lwc_string_caseless_isequal( |
||
| 28 | ident->idata, c->strings[MALE], |
||
| 29 | &match) == lwc_error_ok && match) || |
||
| 30 | (lwc_string_caseless_isequal( |
||
| 31 | ident->idata, c->strings[FEMALE], |
||
| 32 | &match) == lwc_error_ok && match) || |
||
| 33 | (lwc_string_caseless_isequal( |
||
| 34 | ident->idata, c->strings[CHILD], |
||
| 35 | &match) == lwc_error_ok && match); |
||
| 36 | } |
||
| 37 | |||
| 38 | /** |
||
| 39 | * Convert a voice-family token into a bytecode value |
||
| 40 | * |
||
| 41 | * \param c Parsing context |
||
| 42 | * \param token Token to consider |
||
| 43 | * \return Bytecode value |
||
| 44 | */ |
||
| 45 | static css_code_t voice_family_value(css_language *c, const css_token *token, bool first) |
||
| 46 | { |
||
| 47 | uint16_t value; |
||
| 48 | bool match; |
||
| 49 | |||
| 50 | if (token->type == CSS_TOKEN_IDENT) { |
||
| 51 | if ((lwc_string_caseless_isequal( |
||
| 52 | token->idata, c->strings[MALE], |
||
| 53 | &match) == lwc_error_ok && match)) |
||
| 54 | value = VOICE_FAMILY_MALE; |
||
| 55 | else if ((lwc_string_caseless_isequal( |
||
| 56 | token->idata, c->strings[FEMALE], |
||
| 57 | &match) == lwc_error_ok && match)) |
||
| 58 | value = VOICE_FAMILY_FEMALE; |
||
| 59 | else if ((lwc_string_caseless_isequal( |
||
| 60 | token->idata, c->strings[CHILD], |
||
| 61 | &match) == lwc_error_ok && match)) |
||
| 62 | value = VOICE_FAMILY_CHILD; |
||
| 63 | else |
||
| 64 | value = VOICE_FAMILY_IDENT_LIST; |
||
| 65 | } else { |
||
| 66 | value = VOICE_FAMILY_STRING; |
||
| 67 | } |
||
| 68 | |||
| 69 | return first ? buildOPV(CSS_PROP_VOICE_FAMILY, 0, value) : value; |
||
| 70 | } |
||
| 71 | |||
| 72 | /** |
||
| 73 | * Parse voice-family |
||
| 74 | * |
||
| 75 | * \param c Parsing context |
||
| 76 | * \param vector Vector of tokens to process |
||
| 77 | * \param ctx Pointer to vector iteration context |
||
| 78 | * \param result Pointer to location to receive resulting style |
||
| 79 | * \return CSS_OK on success, |
||
| 80 | * CSS_NOMEM on memory exhaustion, |
||
| 81 | * CSS_INVALID if the input is not valid |
||
| 82 | * |
||
| 83 | * Post condition: \a *ctx is updated with the next token to process |
||
| 84 | * If the input is invalid, then \a *ctx remains unchanged. |
||
| 85 | */ |
||
| 86 | css_error css__parse_voice_family(css_language *c, |
||
| 87 | const parserutils_vector *vector, int *ctx, |
||
| 88 | css_style *result) |
||
| 89 | { |
||
| 90 | int orig_ctx = *ctx; |
||
| 91 | css_error error; |
||
| 92 | const css_token *token; |
||
| 93 | bool match; |
||
| 94 | |||
| 95 | /* [ IDENT+ | STRING ] [ ',' [ IDENT+ | STRING ] ]* | IDENT(inherit) |
||
| 96 | * |
||
| 97 | * In the case of IDENT+, any whitespace between tokens is collapsed to |
||
| 98 | * a single space |
||
| 99 | */ |
||
| 100 | |||
| 101 | token = parserutils_vector_iterate(vector, ctx); |
||
| 102 | if (token == NULL || (token->type != CSS_TOKEN_IDENT && |
||
| 103 | token->type != CSS_TOKEN_STRING)) { |
||
| 104 | *ctx = orig_ctx; |
||
| 105 | return CSS_INVALID; |
||
| 106 | } |
||
| 107 | |||
| 108 | if (token->type == CSS_TOKEN_IDENT && |
||
| 109 | (lwc_string_caseless_isequal( |
||
| 110 | token->idata, c->strings[INHERIT], |
||
| 111 | &match) == lwc_error_ok && match)) { |
||
| 112 | error = css_stylesheet_style_inherit(result, CSS_PROP_VOICE_FAMILY); |
||
| 113 | } else { |
||
| 114 | *ctx = orig_ctx; |
||
| 115 | |||
| 116 | error = css__comma_list_to_style(c, vector, ctx, |
||
| 117 | voice_family_reserved, voice_family_value, |
||
| 118 | result); |
||
| 119 | if (error != CSS_OK) { |
||
| 120 | *ctx = orig_ctx; |
||
| 121 | return error; |
||
| 122 | } |
||
| 123 | |||
| 124 | error = css__stylesheet_style_append(result, VOICE_FAMILY_END); |
||
| 125 | } |
||
| 126 | |||
| 127 | if (error != CSS_OK) { |
||
| 128 | *ctx = orig_ctx; |
||
| 129 | return error; |
||
| 130 | } |
||
| 131 | |||
| 132 | return CSS_OK; |
||
| 133 | } |