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130 lines
6.6 KiB
130 lines
6.6 KiB
<?php
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/**
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* Refbase helper functions (cleanup strings, author extraction)
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*/
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class RefbaseTools {
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/// Character translation table
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private static $transtab_refbase_html = array(
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"/__(?!_)(.+?)__/" => "<u>\\1</u>", // the pattern for underline (__...__) must come before the one for italic (_..._)
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"/_(.+?)_/" => "<i>\\1</i>",
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"/\\*\\*(.+?)\\*\\*/" => "<b>\\1</b>",
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"/\\[super:(.+?)\\]/i" => "<sup>\\1</sup>",
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"/\\[sub:(.+?)\\]/i" => "<sub>\\1</sub>",
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"/\\[permil\\]/" => "‰",
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"/\\[infinity\\]/" => "∞",
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"/\\[alpha\\]/" => "α",
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"/\\[beta\\]/" => "β",
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"/\\[gamma\\]/" => "γ",
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"/\\[delta\\]/" => "δ",
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"/\\[epsilon\\]/" => "ε",
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"/\\[zeta\\]/" => "ζ",
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"/\\[eta\\]/" => "η",
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"/\\[theta\\]/" => "θ",
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"/\\[iota\\]/" => "ι",
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"/\\[kappa\\]/" => "κ",
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"/\\[lambda\\]/" => "λ",
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"/\\[mu\\]/" => "μ",
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"/\\[nu\\]/" => "ν",
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"/\\[xi\\]/" => "ξ",
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"/\\[omicron\\]/" => "ο",
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"/\\[pi\\]/" => "π",
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"/\\[rho\\]/" => "ρ",
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"/\\[sigmaf\\]/" => "ς",
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"/\\[sigma\\]/" => "σ",
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"/\\[tau\\]/" => "τ",
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"/\\[upsilon\\]/" => "υ",
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"/\\[phi\\]/" => "φ",
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"/\\[chi\\]/" => "χ",
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"/\\[psi\\]/" => "ψ",
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"/\\[omega\\]/" => "ω",
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"/\\[Alpha\\]/" => "Α",
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"/\\[Beta\\]/" => "Β",
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"/\\[Gamma\\]/" => "Γ",
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"/\\[Delta\\]/" => "Δ",
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"/\\[Epsilon\\]/" => "Ε",
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"/\\[Zeta\\]/" => "Ζ",
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"/\\[Eta\\]/" => "Η",
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"/\\[Theta\\]/" => "Θ",
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"/\\[Iota\\]/" => "Ι",
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"/\\[Kappa\\]/" => "Κ",
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"/\\[Lambda\\]/" => "Λ",
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"/\\[Mu\\]/" => "Μ",
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"/\\[Nu\\]/" => "Ν",
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"/\\[Xi\\]/" => "Ξ",
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"/\\[Omicron\\]/" => "Ο",
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"/\\[Pi\\]/" => "Π",
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"/\\[Rho\\]/" => "Ρ",
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"/\\[Sigma\\]/" => "Σ",
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"/\\[Tau\\]/" => "Τ",
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"/\\[Upsilon\\]/" => "Υ",
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"/\\[Phi\\]/" => "Φ",
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"/\\[Chi\\]/" => "Χ",
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"/\\[Psi\\]/" => "Ψ",
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"/\\[Omega\\]/" => "Ω",
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"/(?:\"|")(.+?)(?:\"|")/" => "“\\1”",
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"/ +- +/" => " – "
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);
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// EXTRACT AUTHOR'S LAST NAME
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// this function takes the contents of the author field and will extract the last name of a particular author (specified by position)
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// (e.g., setting '$authorPosition' to "1" will return the 1st author's last name)
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// Note: this function assumes that:
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// 1. within one author object, there's only *one* delimiter separating author name & initials!
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// 2. author objects are stored in the db as "<author_name><author_initials_delimiter><author_initials>", i.e., initials follow *after* the author's name!
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// Required Parameters:
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// 1. pattern describing delimiter that separates different authors
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// 2. pattern describing delimiter that separates author name & initials (within one author)
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// 3. position of the author whose last name shall be extracted (e.g., "1" will return the 1st author's last name)
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// 4. contents of the author field
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public static function extractAuthorsLastName( $oldBetweenAuthorsDelim, $oldAuthorsInitialsDelim, $authorPosition, $authorContents ) {
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$authorsArray = preg_split( "/" . $oldBetweenAuthorsDelim . "/", $authorContents ); // get a list of all authors for this record
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$authorPosition = $authorPosition - 1; // php array elements start with "0", so we decrease the authors position by 1
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$singleAuthor = $authorsArray[$authorPosition]; // for the author in question, extract the full author name (last name & initials)
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$singleAuthorArray = preg_split( "/" . $oldAuthorsInitialsDelim . "/", $singleAuthor ); // then, extract author name & initials to separate list items
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$singleAuthorsLastName = $singleAuthorArray[0]; // extract this author's last name into a new variable
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return $singleAuthorsLastName;
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}
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// EXTRACT AUTHOR'S GIVEN NAME
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// this function takes the contents of the author field and will extract the given name of a particular author (specified by position)
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// (e.g., setting '$authorPosition' to "1" will return the 1st author's given name)
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// Required Parameters:
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// 1. pattern describing delimiter that separates different authors
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// 2. pattern describing delimiter that separates author name & initials (within one author)
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// 3. position of the author whose last name shall be extracted (e.g., "1" will return the 1st author's last name)
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// 4. contents of the author field
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public static function extractAuthorsGivenName( $oldBetweenAuthorsDelim, $oldAuthorsInitialsDelim, $authorPosition, $authorContents ) {
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$authorsArray = preg_split( "/" . $oldBetweenAuthorsDelim . "/", $authorContents ); // get a list of all authors for this record
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$authorPosition = $authorPosition - 1; // php array elements start with "0", so we decrease the authors position by 1
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$singleAuthor = $authorsArray[$authorPosition]; // for the author in question, extract the full author name (last name & initials)
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$singleAuthorArray = preg_split( "/" . $oldAuthorsInitialsDelim . "/", $singleAuthor ); // then, extract author name & initials to separate list items
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if ( !empty($singleAuthorArray[1]) ) {
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$singleAuthorsGivenName = $singleAuthorArray[1]; // extract this author's last name into a new variable
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} else {
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$singleAuthorsGivenName = '';
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}
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return $singleAuthorsGivenName;
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}
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// Perform search & replace actions on the given text input:
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// ('$includesSearchPatternDelimiters' must be a boolean value that specifies whether the leading and trailing slashes
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// are included within the search pattern ['true'] or not ['false'])
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public static function searchReplaceText( $sourceString, $includesSearchPatternDelimiters ) {
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// apply the search & replace actions defined in '$transtab_refbase_html' to the text passed in '$sourceString':
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foreach ( self::$transtab_refbase_html as $searchString => $replaceString ) {
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if ( !$includesSearchPatternDelimiters ) {
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$searchString = "/" . $searchString . "/"; // add search pattern delimiters
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}
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if ( preg_match($searchString, $sourceString ) ) {
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$sourceString = preg_replace( $searchString, $replaceString, $sourceString );
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}
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}
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return $sourceString;
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}
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}
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