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geshi.php
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<?php
/**
* GeSHi - Generic Syntax Highlighter
*
* The GeSHi class for Generic Syntax Highlighting. Please refer to the
* documentation at http://qbnz.com/highlighter/documentation.php for more
* information about how to use this class.
*
* For changes, release notes, TODOs etc, see the relevant files in the docs/
* directory.
*
* This file is part of GeSHi.
*
* GeSHi is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* GeSHi is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GeSHi; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* @package geshi
* @subpackage core
* @author Nigel McNie <nigel@geshi.org>, Benny Baumann <BenBE@omorphia.de>
* @copyright (C) 2004 - 2007 Nigel McNie, (C) 2007 - 2008 Benny Baumann
* @license http://gnu.org/copyleft/gpl.html GNU GPL
*
*/
//
// GeSHi Constants
// You should use these constant names in your programs instead of
// their values - you never know when a value may change in a future
// version
//
/** The version of this GeSHi file */
define('GESHI_VERSION', '1.0.8.3');
// Define the root directory for the GeSHi code tree
if (!defined('GESHI_ROOT')) {
/** The root directory for GeSHi */
define('GESHI_ROOT', dirname(__FILE__) . DIRECTORY_SEPARATOR);
}
/** The language file directory for GeSHi
@access private */
define('GESHI_LANG_ROOT', GESHI_ROOT . 'geshi' . DIRECTORY_SEPARATOR);
// Define if GeSHi should be paranoid about security
if (!defined('GESHI_SECURITY_PARANOID')) {
/** Tells GeSHi to be paranoid about security settings */
define('GESHI_SECURITY_PARANOID', false);
}
// Line numbers - use with enable_line_numbers()
/** Use no line numbers when building the result */
define('GESHI_NO_LINE_NUMBERS', 0);
/** Use normal line numbers when building the result */
define('GESHI_NORMAL_LINE_NUMBERS', 1);
/** Use fancy line numbers when building the result */
define('GESHI_FANCY_LINE_NUMBERS', 2);
// Container HTML type
/** Use nothing to surround the source */
define('GESHI_HEADER_NONE', 0);
/** Use a "div" to surround the source */
define('GESHI_HEADER_DIV', 1);
/** Use a "pre" to surround the source */
define('GESHI_HEADER_PRE', 2);
/** Use a pre to wrap lines when line numbers are enabled or to wrap the whole code. */
define('GESHI_HEADER_PRE_VALID', 3);
/**
* Use a "table" to surround the source:
*
* <table>
* <thead><tr><td colspan="2">$header</td></tr></thead>
* <tbody><tr><td><pre>$linenumbers</pre></td><td><pre>$code></pre></td></tr></tbody>
* <tfooter><tr><td colspan="2">$footer</td></tr></tfoot>
* </table>
*
* this is essentially only a workaround for Firefox, see sf#1651996 or take a look at
* https://bugzilla.mozilla.org/show_bug.cgi?id=365805
* @note when linenumbers are disabled this is essentially the same as GESHI_HEADER_PRE
*/
define('GESHI_HEADER_PRE_TABLE', 4);
// Capatalisation constants
/** Lowercase keywords found */
define('GESHI_CAPS_NO_CHANGE', 0);
/** Uppercase keywords found */
define('GESHI_CAPS_UPPER', 1);
/** Leave keywords found as the case that they are */
define('GESHI_CAPS_LOWER', 2);
// Link style constants
/** Links in the source in the :link state */
define('GESHI_LINK', 0);
/** Links in the source in the :hover state */
define('GESHI_HOVER', 1);
/** Links in the source in the :active state */
define('GESHI_ACTIVE', 2);
/** Links in the source in the :visited state */
define('GESHI_VISITED', 3);
// Important string starter/finisher
// Note that if you change these, they should be as-is: i.e., don't
// write them as if they had been run through htmlentities()
/** The starter for important parts of the source */
define('GESHI_START_IMPORTANT', '<BEGIN GeSHi>');
/** The ender for important parts of the source */
define('GESHI_END_IMPORTANT', '<END GeSHi>');
/**#@+
* @access private
*/
// When strict mode applies for a language
/** Strict mode never applies (this is the most common) */
define('GESHI_NEVER', 0);
/** Strict mode *might* apply, and can be enabled or
disabled by {@link GeSHi->enable_strict_mode()} */
define('GESHI_MAYBE', 1);
/** Strict mode always applies */
define('GESHI_ALWAYS', 2);
// Advanced regexp handling constants, used in language files
/** The key of the regex array defining what to search for */
define('GESHI_SEARCH', 0);
/** The key of the regex array defining what bracket group in a
matched search to use as a replacement */
define('GESHI_REPLACE', 1);
/** The key of the regex array defining any modifiers to the regular expression */
define('GESHI_MODIFIERS', 2);
/** The key of the regex array defining what bracket group in a
matched search to put before the replacement */
define('GESHI_BEFORE', 3);
/** The key of the regex array defining what bracket group in a
matched search to put after the replacement */
define('GESHI_AFTER', 4);
/** The key of the regex array defining a custom keyword to use
for this regexp's html tag class */
define('GESHI_CLASS', 5);
/** Used in language files to mark comments */
define('GESHI_COMMENTS', 0);
/** Used to work around missing PHP features **/
define('GESHI_PHP_PRE_433', !(version_compare(PHP_VERSION, '4.3.3') === 1));
/** make sure we can call stripos **/
if (!function_exists('stripos')) {
// the offset param of preg_match is not supported below PHP 4.3.3
if (GESHI_PHP_PRE_433) {
/**
* @ignore
*/
function stripos($haystack, $needle, $offset = null) {
if (!is_null($offset)) {
$haystack = substr($haystack, $offset);
}
if (preg_match('/'. preg_quote($needle, '/') . '/', $haystack, $match, PREG_OFFSET_CAPTURE)) {
return $match[0][1];
}
return false;
}
}
else {
/**
* @ignore
*/
function stripos($haystack, $needle, $offset = null) {
if (preg_match('/'. preg_quote($needle, '/') . '/', $haystack, $match, PREG_OFFSET_CAPTURE, $offset)) {
return $match[0][1];
}
return false;
}
}
}
/** some old PHP / PCRE subpatterns only support up to xxx subpatterns in
regular expressions. Set this to false if your PCRE lib is up to date
@see GeSHi->optimize_regexp_list()
**/
define('GESHI_MAX_PCRE_SUBPATTERNS', 500);
/** it's also important not to generate too long regular expressions
be generous here... but keep in mind, that when reaching this limit we
still have to close open patterns. 12k should do just fine on a 16k limit.
@see GeSHi->optimize_regexp_list()
**/
define('GESHI_MAX_PCRE_LENGTH', 12288);
//Number format specification
/** Basic number format for integers */
define('GESHI_NUMBER_INT_BASIC', 1); //Default integers \d+
/** Enhanced number format for integers like seen in C */
define('GESHI_NUMBER_INT_CSTYLE', 2); //Default C-Style \d+[lL]?
/** Number format to highlight binary numbers with a suffix "b" */
define('GESHI_NUMBER_BIN_SUFFIX', 16); //[01]+[bB]
/** Number format to highlight binary numbers with a prefix % */
define('GESHI_NUMBER_BIN_PREFIX_PERCENT', 32); //%[01]+
/** Number format to highlight binary numbers with a prefix 0b (C) */
define('GESHI_NUMBER_BIN_PREFIX_0B', 64); //0b[01]+
/** Number format to highlight octal numbers with a leading zero */
define('GESHI_NUMBER_OCT_PREFIX', 256); //0[0-7]+
/** Number format to highlight octal numbers with a suffix of o */
define('GESHI_NUMBER_OCT_SUFFIX', 512); //[0-7]+[oO]
/** Number format to highlight hex numbers with a prefix 0x */
define('GESHI_NUMBER_HEX_PREFIX', 4096); //0x[0-9a-fA-F]+
/** Number format to highlight hex numbers with a suffix of h */
define('GESHI_NUMBER_HEX_SUFFIX', 8192); //[0-9][0-9a-fA-F]*h
/** Number format to highlight floating-point numbers without support for scientific notation */
define('GESHI_NUMBER_FLT_NONSCI', 65536); //\d+\.\d+
/** Number format to highlight floating-point numbers without support for scientific notation */
define('GESHI_NUMBER_FLT_NONSCI_F', 131072); //\d+(\.\d+)?f
/** Number format to highlight floating-point numbers with support for scientific notation (E) and optional leading zero */
define('GESHI_NUMBER_FLT_SCI_SHORT', 262144); //\.\d+e\d+
/** Number format to highlight floating-point numbers with support for scientific notation (E) and required leading digit */
define('GESHI_NUMBER_FLT_SCI_ZERO', 524288); //\d+(\.\d+)?e\d+
//Custom formats are passed by RX array
// Error detection - use these to analyse faults
/** No sourcecode to highlight was specified
* @deprecated
*/
define('GESHI_ERROR_NO_INPUT', 1);
/** The language specified does not exist */
define('GESHI_ERROR_NO_SUCH_LANG', 2);
/** GeSHi could not open a file for reading (generally a language file) */
define('GESHI_ERROR_FILE_NOT_READABLE', 3);
/** The header type passed to {@link GeSHi->set_header_type()} was invalid */
define('GESHI_ERROR_INVALID_HEADER_TYPE', 4);
/** The line number type passed to {@link GeSHi->enable_line_numbers()} was invalid */
define('GESHI_ERROR_INVALID_LINE_NUMBER_TYPE', 5);
/**#@-*/
/**
* The GeSHi Class.
*
* Please refer to the documentation for GeSHi 1.0.X that is available
* at http://qbnz.com/highlighter/documentation.php for more information
* about how to use this class.
*
* @package geshi
* @author Nigel McNie <nigel@geshi.org>, Benny Baumann <BenBE@omorphia.de>
* @copyright (C) 2004 - 2007 Nigel McNie, (C) 2007 - 2008 Benny Baumann
*/
class GeSHi {
/**#@+
* @access private
*/
/**
* The source code to highlight
* @var string
*/
var $source = '';
/**
* The language to use when highlighting
* @var string
*/
var $language = '';
/**
* The data for the language used
* @var array
*/
var $language_data = array();
/**
* The path to the language files
* @var string
*/
var $language_path = GESHI_LANG_ROOT;
/**
* The error message associated with an error
* @var string
* @todo check err reporting works
*/
var $error = false;
/**
* Possible error messages
* @var array
*/
var $error_messages = array(
GESHI_ERROR_NO_SUCH_LANG => 'GeSHi could not find the language {LANGUAGE} (using path {PATH})',
GESHI_ERROR_FILE_NOT_READABLE => 'The file specified for load_from_file was not readable',
GESHI_ERROR_INVALID_HEADER_TYPE => 'The header type specified is invalid',
GESHI_ERROR_INVALID_LINE_NUMBER_TYPE => 'The line number type specified is invalid'
);
/**
* Whether highlighting is strict or not
* @var boolean
*/
var $strict_mode = false;
/**
* Whether to use CSS classes in output
* @var boolean
*/
var $use_classes = false;
/**
* The type of header to use. Can be one of the following
* values:
*
* - GESHI_HEADER_PRE: Source is outputted in a "pre" HTML element.
* - GESHI_HEADER_DIV: Source is outputted in a "div" HTML element.
* - GESHI_HEADER_NONE: No header is outputted.
*
* @var int
*/
var $header_type = GESHI_HEADER_PRE;
/**
* Array of permissions for which lexics should be highlighted
* @var array
*/
var $lexic_permissions = array(
'KEYWORDS' => array(),
'COMMENTS' => array('MULTI' => true),
'REGEXPS' => array(),
'ESCAPE_CHAR' => true,
'BRACKETS' => true,
'SYMBOLS' => false,
'STRINGS' => true,
'NUMBERS' => true,
'METHODS' => true,
'SCRIPT' => true
);
/**
* The time it took to parse the code
* @var double
*/
var $time = 0;
/**
* The content of the header block
* @var string
*/
var $header_content = '';
/**
* The content of the footer block
* @var string
*/
var $footer_content = '';
/**
* The style of the header block
* @var string
*/
var $header_content_style = '';
/**
* The style of the footer block
* @var string
*/
var $footer_content_style = '';
/**
* Tells if a block around the highlighted source should be forced
* if not using line numbering
* @var boolean
*/
var $force_code_block = false;
/**
* The styles for hyperlinks in the code
* @var array
*/
var $link_styles = array();
/**
* Whether important blocks should be recognised or not
* @var boolean
* @deprecated
* @todo REMOVE THIS FUNCTIONALITY!
*/
var $enable_important_blocks = false;
/**
* Styles for important parts of the code
* @var string
* @deprecated
* @todo As above - rethink the whole idea of important blocks as it is buggy and
* will be hard to implement in 1.2
*/
var $important_styles = 'font-weight: bold; color: red;'; // Styles for important parts of the code
/**
* Whether CSS IDs should be added to the code
* @var boolean
*/
var $add_ids = false;
/**
* Lines that should be highlighted extra
* @var array
*/
var $highlight_extra_lines = array();
/**
* Styles of lines that should be highlighted extra
* @var array
*/
var $highlight_extra_lines_styles = array();
/**
* Styles of extra-highlighted lines
* @var string
*/
var $highlight_extra_lines_style = 'background-color: #ffc;';
/**
* The line ending
* If null, nl2br() will be used on the result string.
* Otherwise, all instances of \n will be replaced with $line_ending
* @var string
*/
var $line_ending = null;
/**
* Number at which line numbers should start at
* @var int
*/
var $line_numbers_start = 1;
/**
* The overall style for this code block
* @var string
*/
var $overall_style = 'font-family:monospace;';
/**
* The style for the actual code
* @var string
*/
var $code_style = 'font: normal normal 1em/1.2em monospace; margin:0; padding:0; background:none; vertical-align:top;';
/**
* The overall class for this code block
* @var string
*/
var $overall_class = '';
/**
* The overall ID for this code block
* @var string
*/
var $overall_id = '';
/**
* Line number styles
* @var string
*/
var $line_style1 = 'font-weight: normal; vertical-align:top;';
/**
* Line number styles for fancy lines
* @var string
*/
var $line_style2 = 'font-weight: bold; vertical-align:top;';
/**
* Style for line numbers when GESHI_HEADER_PRE_TABLE is chosen
* @var string
*/
var $table_linenumber_style = 'width:1px;text-align:right;margin:0;padding:0 2px;vertical-align:top;';
/**
* Flag for how line numbers are displayed
* @var boolean
*/
var $line_numbers = GESHI_NO_LINE_NUMBERS;
/**
* Flag to decide if multi line spans are allowed. Set it to false to make sure
* each tag is closed before and reopened after each linefeed.
* @var boolean
*/
var $allow_multiline_span = true;
/**
* The "nth" value for fancy line highlighting
* @var int
*/
var $line_nth_row = 0;
/**
* The size of tab stops
* @var int
*/
var $tab_width = 8;
/**
* Should we use language-defined tab stop widths?
* @var int
*/
var $use_language_tab_width = false;
/**
* Default target for keyword links
* @var string
*/
var $link_target = '';
/**
* The encoding to use for entity encoding
* NOTE: Used with Escape Char Sequences to fix UTF-8 handling (cf. SF#2037598)
* @var string
*/
var $encoding = 'utf-8';
/**
* Should keywords be linked?
* @var boolean
*/
var $keyword_links = true;
/**
* Currently loaded language file
* @var string
* @since 1.0.7.22
*/
var $loaded_language = '';
/**
* Wether the caches needed for parsing are built or not
*
* @var bool
* @since 1.0.8
*/
var $parse_cache_built = false;
/**
* Work around for Suhosin Patch with disabled /e modifier
*
* Note from suhosins author in config file:
* <blockquote>
* The /e modifier inside <code>preg_replace()</code> allows code execution.
* Often it is the cause for remote code execution exploits. It is wise to
* deactivate this feature and test where in the application it is used.
* The developer using the /e modifier should be made aware that he should
* use <code>preg_replace_callback()</code> instead
* </blockquote>
*
* @var array
* @since 1.0.8
*/
var $_kw_replace_group = 0;
var $_rx_key = 0;
/**
* some "callback parameters" for handle_multiline_regexps
*
* @since 1.0.8
* @access private
* @var string
*/
var $_hmr_before = '';
var $_hmr_replace = '';
var $_hmr_after = '';
var $_hmr_key = 0;
/**#@-*/
/**
* Creates a new GeSHi object, with source and language
*
* @param string The source code to highlight
* @param string The language to highlight the source with
* @param string The path to the language file directory. <b>This
* is deprecated!</b> I've backported the auto path
* detection from the 1.1.X dev branch, so now it
* should be automatically set correctly. If you have
* renamed the language directory however, you will
* still need to set the path using this parameter or
* {@link GeSHi->set_language_path()}
* @since 1.0.0
*/
function GeSHi($source = '', $language = '', $path = '') {
if (!empty($source)) {
$this->set_source($source);
}
if (!empty($language)) {
$this->set_language($language);
}
$this->set_language_path($path);
}
/**
* Returns an error message associated with the last GeSHi operation,
* or false if no error has occured
*
* @return string|false An error message if there has been an error, else false
* @since 1.0.0
*/
function error() {
if ($this->error) {
//Put some template variables for debugging here ...
$debug_tpl_vars = array(
'{LANGUAGE}' => $this->language,
'{PATH}' => $this->language_path
);
$msg = str_replace(
array_keys($debug_tpl_vars),
array_values($debug_tpl_vars),
$this->error_messages[$this->error]);
return "<br /><strong>GeSHi Error:</strong> $msg (code {$this->error})<br />";
}
return false;
}
/**
* Gets a human-readable language name (thanks to Simon Patterson
* for the idea :))
*
* @return string The name for the current language
* @since 1.0.2
*/
function get_language_name() {
if (GESHI_ERROR_NO_SUCH_LANG == $this->error) {
return $this->language_data['LANG_NAME'] . ' (Unknown Language)';
}
return $this->language_data['LANG_NAME'];
}
/**
* Sets the source code for this object
*
* @param string The source code to highlight
* @since 1.0.0
*/
function set_source($source) {
$this->source = $source;
$this->highlight_extra_lines = array();
}
/**
* Sets the language for this object
*
* @note since 1.0.8 this function won't reset language-settings by default anymore!
* if you need this set $force_reset = true
*
* @param string The name of the language to use
* @since 1.0.0
*/
function set_language($language, $force_reset = false) {
if ($force_reset) {
$this->loaded_language = false;
}
//Clean up the language name to prevent malicious code injection
$language = preg_replace('#[^a-zA-Z0-9\-_]#', '', $language);
$language = strtolower($language);
//Retreive the full filename
$file_name = $this->language_path . $language . '.php';
if ($file_name == $this->loaded_language) {
// this language is already loaded!
return;
}
$this->language = $language;
$this->error = false;
$this->strict_mode = GESHI_NEVER;
//Check if we can read the desired file
if (!is_readable($file_name)) {
$this->error = GESHI_ERROR_NO_SUCH_LANG;
return;
}
// Load the language for parsing
$this->load_language($file_name);
}
/**
* Sets the path to the directory containing the language files. Note
* that this path is relative to the directory of the script that included
* geshi.php, NOT geshi.php itself.
*
* @param string The path to the language directory
* @since 1.0.0
* @deprecated The path to the language files should now be automatically
* detected, so this method should no longer be needed. The
* 1.1.X branch handles manual setting of the path differently
* so this method will disappear in 1.2.0.
*/
function set_language_path($path) {
if(strpos($path,':')) {
//Security Fix to prevent external directories using fopen wrappers.
if(DIRECTORY_SEPARATOR == "\\") {
if(!preg_match('#^[a-zA-Z]:#', $path) || false !== strpos($path, ':', 2)) {
return;
}
} else {
return;
}
}
if(preg_match('#[^/a-zA-Z0-9_\.\-\\\s:]#', $path)) {
//Security Fix to prevent external directories using fopen wrappers.
return;
}
if(GESHI_SECURITY_PARANOID && false !== strpos($path, '/.')) {
//Security Fix to prevent external directories using fopen wrappers.
return;
}
if(GESHI_SECURITY_PARANOID && false !== strpos($path, '..')) {
//Security Fix to prevent external directories using fopen wrappers.
return;
}
if ($path) {
$this->language_path = ('/' == $path[strlen($path) - 1]) ? $path : $path . '/';
$this->set_language($this->language); // otherwise set_language_path has no effect
}
}
/**
* Sets the type of header to be used.
*
* If GESHI_HEADER_DIV is used, the code is surrounded in a "div".This
* means more source code but more control over tab width and line-wrapping.
* GESHI_HEADER_PRE means that a "pre" is used - less source, but less
* control. Default is GESHI_HEADER_PRE.
*
* From 1.0.7.2, you can use GESHI_HEADER_NONE to specify that no header code
* should be outputted.
*
* @param int The type of header to be used
* @since 1.0.0
*/
function set_header_type($type) {
//Check if we got a valid header type
if (!in_array($type, array(GESHI_HEADER_NONE, GESHI_HEADER_DIV,
GESHI_HEADER_PRE, GESHI_HEADER_PRE_VALID, GESHI_HEADER_PRE_TABLE))) {
$this->error = GESHI_ERROR_INVALID_HEADER_TYPE;
return;
}
//Set that new header type
$this->header_type = $type;
}
/**
* Sets the styles for the code that will be outputted
* when this object is parsed. The style should be a
* string of valid stylesheet declarations
*
* @param string The overall style for the outputted code block
* @param boolean Whether to merge the styles with the current styles or not
* @since 1.0.0
*/
function set_overall_style($style, $preserve_defaults = false) {
if (!$preserve_defaults) {
$this->overall_style = $style;
} else {
$this->overall_style .= $style;
}
}
/**
* Sets the overall classname for this block of code. This
* class can then be used in a stylesheet to style this object's
* output
*
* @param string The class name to use for this block of code
* @since 1.0.0
*/
function set_overall_class($class) {
$this->overall_class = $class;
}
/**
* Sets the overall id for this block of code. This id can then
* be used in a stylesheet to style this object's output
*
* @param string The ID to use for this block of code
* @since 1.0.0
*/
function set_overall_id($id) {
$this->overall_id = $id;
}
/**
* Sets whether CSS classes should be used to highlight the source. Default
* is off, calling this method with no arguments will turn it on
*
* @param boolean Whether to turn classes on or not
* @since 1.0.0
*/
function enable_classes($flag = true) {
$this->use_classes = ($flag) ? true : false;
}
/**
* Sets the style for the actual code. This should be a string
* containing valid stylesheet declarations. If $preserve_defaults is
* true, then styles are merged with the default styles, with the
* user defined styles having priority
*
* Note: Use this method to override any style changes you made to
* the line numbers if you are using line numbers, else the line of
* code will have the same style as the line number! Consult the
* GeSHi documentation for more information about this.
*
* @param string The style to use for actual code
* @param boolean Whether to merge the current styles with the new styles
* @since 1.0.2
*/
function set_code_style($style, $preserve_defaults = false) {
if (!$preserve_defaults) {
$this->code_style = $style;
} else {
$this->code_style .= $style;
}
}
/**
* Sets the styles for the line numbers.
*
* @param string The style for the line numbers that are "normal"
* @param string|boolean If a string, this is the style of the line
* numbers that are "fancy", otherwise if boolean then this
* defines whether the normal styles should be merged with the
* new normal styles or not
* @param boolean If set, is the flag for whether to merge the "fancy"
* styles with the current styles or not
* @since 1.0.2
*/
function set_line_style($style1, $style2 = '', $preserve_defaults = false) {
//Check if we got 2 or three parameters
if (is_bool($style2)) {
$preserve_defaults = $style2;
$style2 = '';
}
//Actually set the new styles
if (!$preserve_defaults) {
$this->line_style1 = $style1;
$this->line_style2 = $style2;
} else {
$this->line_style1 .= $style1;
$this->line_style2 .= $style2;
}
}
/**
* Sets whether line numbers should be displayed.
*
* Valid values for the first parameter are:
*
* - GESHI_NO_LINE_NUMBERS: Line numbers will not be displayed
* - GESHI_NORMAL_LINE_NUMBERS: Line numbers will be displayed
* - GESHI_FANCY_LINE_NUMBERS: Fancy line numbers will be displayed
*
* For fancy line numbers, the second parameter is used to signal which lines
* are to be fancy. For example, if the value of this parameter is 5 then every
* 5th line will be fancy.
*
* @param int How line numbers should be displayed
* @param int Defines which lines are fancy
* @since 1.0.0
*/
function enable_line_numbers($flag, $nth_row = 5) {
if (GESHI_NO_LINE_NUMBERS != $flag && GESHI_NORMAL_LINE_NUMBERS != $flag
&& GESHI_FANCY_LINE_NUMBERS != $flag) {
$this->error = GESHI_ERROR_INVALID_LINE_NUMBER_TYPE;
}
$this->line_numbers = $flag;
$this->line_nth_row = $nth_row;
}
/**
* Sets wether spans and other HTML markup generated by GeSHi can
* span over multiple lines or not. Defaults to true to reduce overhead.
* Set it to false if you want to manipulate the output or manually display
* the code in an ordered list.
*
* @param boolean Wether multiline spans are allowed or not
* @since 1.0.7.22
*/
function enable_multiline_span($flag) {
$this->allow_multiline_span = (bool) $flag;
}
/**
* Get current setting for multiline spans, see GeSHi->enable_multiline_span().
*
* @see enable_multiline_span
* @return bool
*/
function get_multiline_span() {
return $this->allow_multiline_span;
}
/**
* Sets the style for a keyword group. If $preserve_defaults is
* true, then styles are merged with the default styles, with the
* user defined styles having priority
*
* @param int The key of the keyword group to change the styles of
* @param string The style to make the keywords
* @param boolean Whether to merge the new styles with the old or just
* to overwrite them
* @since 1.0.0
*/
function set_keyword_group_style($key, $style, $preserve_defaults = false) {
//Set the style for this keyword group
if (!$preserve_defaults) {
$this->language_data['STYLES']['KEYWORDS'][$key] = $style;
} else {
$this->language_data['STYLES']['KEYWORDS'][$key] .= $style;
}
//Update the lexic permissions
if (!isset($this->lexic_permissions['KEYWORDS'][$key])) {
$this->lexic_permissions['KEYWORDS'][$key] = true;
}
}
/**
* Turns highlighting on/off for a keyword group
*
* @param int The key of the keyword group to turn on or off
* @param boolean Whether to turn highlighting for that group on or off
* @since 1.0.0
*/
function set_keyword_group_highlighting($key, $flag = true) {
$this->lexic_permissions['KEYWORDS'][$key] = ($flag) ? true : false;
}
/**
* Sets the styles for comment groups. If $preserve_defaults is
* true, then styles are merged with the default styles, with the
* user defined styles having priority
*
* @param int The key of the comment group to change the styles of
* @param string The style to make the comments
* @param boolean Whether to merge the new styles with the old or just
* to overwrite them
* @since 1.0.0
*/
function set_comments_style($key, $style, $preserve_defaults = false) {
if (!$preserve_defaults) {
$this->language_data['STYLES']['COMMENTS'][$key] = $style;
} else {
$this->language_data['STYLES']['COMMENTS'][$key] .= $style;
}
}
/**
* Turns highlighting on/off for comment groups
*
* @param int The key of the comment group to turn on or off
* @param boolean Whether to turn highlighting for that group on or off
* @since 1.0.0
*/
function set_comments_highlighting($key, $flag = true) {
$this->lexic_permissions['COMMENTS'][$key] = ($flag) ? true : false;
}
/**
* Sets the styles for escaped characters. If $preserve_defaults is
* true, then styles are merged with the default styles, with the
* user defined styles having priority
*
* @param string The style to make the escape characters
* @param boolean Whether to merge the new styles with the old or just
* to overwrite them
* @since 1.0.0
*/
function set_escape_characters_style($style, $preserve_defaults = false, $group = 0) {
if (!$preserve_defaults) {
$this->language_data['STYLES']['ESCAPE_CHAR'][$group] = $style;
} else {
$this->language_data['STYLES']['ESCAPE_CHAR'][$group] .= $style;
}
}
/**
* Turns highlighting on/off for escaped characters
*
* @param boolean Whether to turn highlighting for escape characters on or off
* @since 1.0.0
*/
function set_escape_characters_highlighting($flag = true) {