Automattic /
jetpack
| @@ 24-50 (lines=27) @@ | ||
| 21 | * $latex [a, b]$ -> [latex][a, b][/latex] |
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| 22 | */ |
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| 23 | ||
| 24 | function latex_markup( $content ) { |
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| 25 | $textarr = wp_html_split( $content ); |
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| 26 | ||
| 27 | $regex = '% |
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| 28 | \$latex(?:=\s*|\s+) |
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| 29 | ((?: |
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| 30 | [^$]+ # Not a dollar |
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| 31 | | |
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| 32 | (?<=(?<!\\\\)\\\\)\$ # Dollar preceded by exactly one slash |
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| 33 | )+) |
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| 34 | (?<!\\\\)\$ # Dollar preceded by zero slashes |
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| 35 | %ix'; |
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| 36 | ||
| 37 | foreach ( $textarr as &$element ) { |
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| 38 | if ( '' == $element || '<' === $element[0] ) { |
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| 39 | continue; |
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| 40 | } |
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| 41 | ||
| 42 | if ( false === stripos( $element, '$latex' ) ) { |
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| 43 | continue; |
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| 44 | } |
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| 45 | ||
| 46 | $element = preg_replace_callback( $regex, 'latex_src', $element ); |
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| 47 | } |
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| 48 | ||
| 49 | return implode( '', $textarr ); |
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| 50 | } |
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| 51 | ||
| 52 | function latex_src( $matches ) { |
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| 53 | $latex = $matches[1]; |
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| @@ 65-82 (lines=18) @@ | ||
| 62 | * |
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| 63 | * @return string |
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| 64 | */ |
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| 65 | function jetpack_spotify_embed_ids( $content ) { |
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| 66 | $textarr = wp_html_split( $content ); |
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| 67 | ||
| 68 | foreach ( $textarr as &$element ) { |
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| 69 | if ( '' === $element || '<' === $element[0] ) { |
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| 70 | continue; |
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| 71 | } |
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| 72 | ||
| 73 | // If this element does not contain a Spotify embed, continue. |
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| 74 | if ( false === strpos( $element, 'spotify:' ) ) { |
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| 75 | continue; |
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| 76 | } |
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| 77 | ||
| 78 | $element = preg_replace_callback( '|^\s*(spotify:[^\s"]+:[^\s"]+)\s*$|im', 'jetpack_spotify_embed_ids_callback', $element ); |
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| 79 | } |
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| 80 | ||
| 81 | return implode( '', $textarr ); |
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| 82 | } |
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| 83 | add_filter( 'the_content', 'jetpack_spotify_embed_ids', 7 ); |
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| 84 | ||
| 85 | /** |
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