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404handler.php
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404handler.php
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<?php
// This script is intended to handle requests for files that do not exist
// This may occur because:
// 1) It is a language-free URL and we need to send the user to the most language appropriate version for them
// 2) The page has moved elsewhere and we need to send them to the appropriate page
// 3) The request is for a legacy page that existed on the older Mediawiki based setup, in which case we need to once again send them to the most appropriate page
// Our list of supported languages
$supported_languages = array(
"en",
"ca",
"cs",
"de",
"fr",
"it",
"nl",
"es",
//"tr", // disabled because 0% translation coverage
//"da", // disabled because 0% translation coverage
"pl",
//"pt_BR", // disabled because 0% translation coverage
//"ru", // disabled because 0% translation coverage
//"sk", // disabled because 0% translation coverage
"sl",
//"sv", // disabled because broken translation
"uk_UA",
"zh_CN",
"zh_TW",
"ja",
"ko"
);
// List of page redirect rules
// These should always be free of the language code, as this will be automatically added on when formulating the URL to forward the user on to
$redirect_rules = array(
// Default front page
"^$" => "index.html",
// Effects short links
// These short links are use inside Kdenlive in the effects list to link to the documentation.
// The pattern is https://docs.kdenlive.org/effect_link/EFFECTID where dots in EFFECTID are replaced by -
"^effect_link\/affine" => "effects_and_filters/video_effects/transform_distort_perspective/rotate_and_shear.html",
"^effect_link\/affinerotate" => "effects_and_filters/video_effects/transform_distort_perspective/rotate_keyframable.html",
"^effect_link\/audiolevelgraph" => "effects_and_filters/video_effects/on_master/audio_level_visualization_filter.html",
"^effect_link\/audiospectrum" => "effects_and_filters/video_effects/on_master/audio_spectrum_filter.html",
"^effect_link\/audiowave" => "effects_and_filters/video_effects/on_master/audio_wave.html",
"^effect_link\/audiowaveform" => "effects_and_filters/video_effects/on_master/audio_waveform_filter.html",
"^effect_link\/avfilter.boxblur" => "effects_and_filters/video_effects/deprecated/box_blur.html",
"^effect_link\/avfilter.cas" => "effects_and_filters/video_effects/blur_and_sharpen/contrast_adaptive_sharpen.html",
"^effect_link\/avfilter.drawbox" => "effects_and_filters/video_effects/generate/drawbox.html",
"^effect_link\/avfilter.drawgrid" => "effects_and_filters/video_effects/generate/drawgrid.html",
"^effect_link\/avfilter.fftdnoiz" => "effects_and_filters/video_effects/grain_and_noise/3d_fft_denoiser.html",
"^effect_link\/avfilter.histogram" => "effects_and_filters/video_effects/utility/histogram.html",
"^effect_link\/avfilter.lenscorrection" => "effects_and_filters/video_effects/transform_distort_perspective/lens_correction.html",
"^effect_link\/avfilter.lut3d" => "effects_and_filters/video_effects/color_image_correction/applylut.html",
"^effect_link\/avfilter.oscilloscope" => "effects_and_filters/video_effects/utility/oscilloscope.html",
"^effect_link\/avfilter.sobel" => "effects_and_filters/video_effects/stylize/sobel_planes.html",
"^effect_link\/avfilter.vectorscope" => "effects_and_filters/video_effects/utility/vectorscope_advanced.html",
"^effect_link\/boxblur" => "effects_and_filters/video_effects/deprecated/box_blur.html",
"^effect_link\/brightness" => "effects_and_filters/video_effects/color_image_correction/brightness_keyframable.html",
"^effect_link\/charcoal" => "effects_and_filters/video_effects/stylize/charcoal.html",
"^effect_link\/chroma" => "effects_and_filters/video_effects/alpha_mask_keying/chroma_key.html",
"^effect_link\/chroma_hold" => "effects_and_filters/video_effects/color_image_correction/chroma_hold.html",
"^effect_link\/crop" => "effects_and_filters/video_effects/transform_distort_perspective/edge_crop.html",
"^effect_link\/dance" => "effects_and_filters/video_effects/on_master/dance.html",
"^effect_link\/dust" => "effects_and_filters/video_effects/grain_and_noise/dust.html",
"^effect_link\/dynamictext" => "effects_and_filters/video_effects/generate/dynamic_text.html",
"^effect_link\/fade_from_black" => "effects_and_filters/video_effects/motion/fade_in.html",
"^effect_link\/fade_to_black" => "effects_and_filters/video_effects/motion/fade_out.html",
"^effect_link\/freeze" => "effects_and_filters/video_effects/motion/freeze.html",
"^effect_link\/frei0r.alpha0ps" => "effects_and_filters/video_effects/alpha_mask_keying/alpha_operations.html",
"^effect_link\/frei0r.alphagrad" => "effects_and_filters/video_effects/alpha_mask_keying/alpha_gradient.html",
"^effect_link\/frei0r.alphaspot" => "effects_and_filters/video_effects/alpha_mask_keying/alpha_shapes.html",
"^effect_link\/frei0r.balanc0r" => "effects_and_filters/video_effects/color_image_correction/white_balance.html",
"^effect_link\/frei0r.brightness" => "effects_and_filters/video_effects/color_image_correction/brightness.html",
"^effect_link\/frei0r.c0rners" => "effects_and_filters/video_effects/transform_distort_perspective/corners.html",
"^effect_link\/frei0r.cairogradient" => "effects_and_filters/video_effects/generate/cairogradient.html",
"^effect_link\/frei0r.cairoimagegrid" => "effects_and_filters/video_effects/generate/video_grid.html",
"^effect_link\/frei0r.cartoon" => "effects_and_filters/video_effects/stylize/cartoon.html",
"^effect_link\/frei0r.cluster" => "effects_and_filters/video_effects/deprecated/k-means_clustering.html",
"^effect_link\/frei0r.colgate" => "effects_and_filters/video_effects/color_image_correction/white_balance_lms.html",
"^effect_link\/frei0r.coloradj_RGB" => "effects_and_filters/video_effects/color_image_correction/rgb_adjustment.html",
"^effect_link\/frei0r.colordistance" => "effects_and_filters/video_effects/stylize/color_distance.html",
"^effect_link\/frei0r.colortap" => "effects_and_filters/video_effects/stylize/color_effect.html",
"^effect_link\/frei0r.curves" => "effects_and_filters/video_effects/color_image_correction/bezier_curves.html",
"^effect_link\/frei0r.curves" => "effects_and_filters/video_effects/color_image_correction/curves.html",
"^effect_link\/frei0r.defish0r" => "effects_and_filters/video_effects/transform_distort_perspective/defish.html",
"^effect_link\/frei0r.distort0r" => "effects_and_filters/video_effects/stylize.html",
"^effect_link\/frei0r.dither" => "effects_and_filters/video_effects/deprecated/dither.html",
"^effect_link\/frei0r.edgeglow" => "effects_and_filters/video_effects/stylize/edge_glow.html",
"^effect_link\/frei0r.equaliz0r" => "effects_and_filters/video_effects/color_image_correction/equaliz0r.html",
"^effect_link\/frei0r.gamma" => "effects_and_filters/video_effects/color_image_correction/gamma.html",
"^effect_link\/frei0r.glow" => "effects_and_filters/video_effects/stylize/glow.html",
"^effect_link\/frei0r.hqdn3d" => "effects_and_filters/video_effects/grain_and_noise/denoiser.html",
"^effect_link\/frei0r.hueshift0r" => "effects_and_filters/video_effects/color_image_correction/hue_shift.html",
"^effect_link\/frei0r.IIRblur" => "effects_and_filters/video_effects/deprecated/blur.html",
"^effect_link\/frei0r.keyspillm0pup" => "effects_and_filters/video_effects/alpha_mask_keying/key_spill_mop_up.html",
"^effect_link\/frei0r.lenscorrection" => "effects_and_filters/video_effects/transform_distort_perspective/lens_correction_keyframe.html",
"^effect_link\/frei0r.letterb0xed" => "effects_and_filters/video_effects/transform_distort_perspective/letterb0xed.html",
"^effect_link\/frei0r.levels" => "effects_and_filters/video_effects/color_image_correction/levels.html",
"^effect_link\/frei0r.luminance" => "effects_and_filters/video_effects/color_image_correction/luminance.html",
"^effect_link\/frei0r.mask0mate" => "effects_and_filters/video_effects/alpha_mask_keying/rectangular_alpha_mask.html",
"^effect_link\/frei0r.medians" => "effects_and_filters/video_effects/deprecated/medians.html",
"^effect_link\/frei0r.ndvi" => "effects_and_filters/video_effects/stylize/ndvi_filter.html",
"^effect_link\/frei0r.nervous" => "effects_and_filters/video_effects/motion/nervous.html",
"^effect_link\/frei0r.nosync0r" => "effects_and_filters/video_effects/transform_distort_perspective/nosync0r.html",
"^effect_link\/frei0r.pixeliz0r" => "effects_and_filters/video_effects/stylize/pixelize.html",
"^effect_link\/frei0r.pr0be" => "effects_and_filters/video_effects/utility/video_values.html",
"^effect_link\/frei0r.pr0file" => "effects_and_filters/video_effects/utility/oscilloscope_advanced.html",
"^effect_link\/frei0r.primaries" => "effects_and_filters/video_effects/stylize/primaries.html",
"^effect_link\/frei0r.rgbnoise" => "effects_and_filters/video_effects/deprecated/rgbnoise.html",
"^effect_link\/frei0r.rgbsplit0r" => "effects_and_filters/video_effects/stylize/rgbsplit0r.html",
"^effect_link\/frei0r.saturat0r" => "effects_and_filters/video_effects/color_image_correction/saturation.html",
"^effect_link\/frei0r.scale0tilt" => "effects_and_filters/video_effects/transform_distort_perspective/crop_scale_tilt.html",
"^effect_link\/frei0r.scanline0r" => "effects_and_filters/video_effects/generate/scanline0r.html",
"^effect_link\/frei0r.select0r" => "effects_and_filters/video_effects/alpha_mask_keying/chroma_key_advanced.html",
"^effect_link\/frei0r.sharpness" => "effects_and_filters/video_effects/deprecated/sharpen.html",
"^effect_link\/frei0r.sigmoidaltransfer" => "effects_and_filters/video_effects/stylize/sigmoidal_transfer.html",
"^effect_link\/frei0r.sobel" => "effects_and_filters/video_effects/stylize/sobel.html",
"^effect_link\/frei0r.softglow" => "effects_and_filters/video_effects/stylize/soft_glow.html",
"^effect_link\/frei0r.sopsat" => "effects_and_filters/video_effects/color_image_correction/sat.html",
"^effect_link\/frei0r.spillsupress" => "effects_and_filters/video_effects/alpha_mask_keying/spillsuppress.html",
"^effect_link\/frei0r.squareblur" => "effects_and_filters/video_effects/blur_and_sharpen/square_blur.html",
"^effect_link\/frei0r.three_point_balance" => "effects_and_filters/video_effects/color_image_correction/3_point_balance.html",
"^effect_link\/frei0r.threshold0r" => "effects_and_filters/video_effects/stylize/threshold.html",
"^effect_link\/frei0r.timeout" => "effects_and_filters/video_effects/utility/timeout_indicator.html",
"^effect_link\/frei0r.tint0r" => "effects_and_filters/video_effects/color_image_correction/tint.html",
"^effect_link\/frei0r.vectorscope" => "effects_and_filters/video_effects/utility/vectorscope.html",
"^effect_link\/frei0r.vignette" => "effects_and_filters/video_effects/generate/vignette.html",
"^effect_link\/gain" => "effects_and_filters/audio_effects/volume_and_dynamics/gain.html",
"^effect_link\/grain" => "effects_and_filters/video_effects/deprecated/grain.html",
"^effect_link\/greyscale" => "effects_and_filters/video_effects/color_image_correction/greyscale.html",
"^effect_link\/invert" => "effects_and_filters/video_effects/color_image_correction/invert.html",
"^effect_link\/lift_gamma_gain" => "effects_and_filters/video_effects/color_image_correction/lift_gamma_gain.html",
"^effect_link\/lightshow" => "effects_and_filters/video_effects/on_master/light_show.html",
"^effect_link\/lines" => "effects_and_filters/video_effects/grain_and_noise/scratchlines.html",
"^effect_link\/lumakey" => "effects_and_filters/video_effects/alpha_mask_keying/lumakey.html",
"^effect_link\/mirror" => "effects_and_filters/video_effects/transform_distort_perspective/mirror.html",
"^effect_link\/mute" => "effects_and_filters/audio_effects/volume_and_dynamics/mute.html",
"^effect_link\/obscure" => "effects_and_filters/video_effects/alpha_mask_keying/obscure.html",
"^effect_link\/oldfilm" => "effects_and_filters/video_effects/stylize/oldfilm.html",
"^effect_link\/opencv.tracker" => "effects_and_filters/video_effects/alpha_mask_keying/motion_tracker.html",
"^effect_link\/pan_zoom" => "effects_and_filters/video_effects/transform_distort_perspective/position_and_zoom.html",
"^effect_link\/qtblend" => "effects_and_filters/video_effects/transform_distort_perspective/transform.html",
"^effect_link\/rotoscoping" => "effects_and_filters/video_effects/alpha_mask_keying/rotoscoping.html",
"^effect_link\/sepia" => "effects_and_filters/video_effects/color_image_correction/sepia.html",
"^effect_link\/tcolor" => "effects_and_filters/video_effects/color_image_correction/technicolor.html",
"^effect_link\/threshold" => "effects_and_filters/video_effects/stylize/binarize.html",
"^effect_link\/typewriter" => "titles_and_graphics/titles/title_text.html#title-text-typewriter",
"^effect_link\/vignette" => "effects_and_filters/video_effects/generate/vignette_effect.html",
"^effect_link\/volume" => "effects_and_filters/audio_effects/volume_and_dynamics/volume_keyframable.html",
"^effect_link\/wave" => "effects_and_filters/video_effects/deprecated/wave.html",
"^effect_link\/mask_start-frei0r.select0r" => "effects_and_filters/video_effects/alpha_mask_keying/secondary_color_selection_mask.html",
"^effect_link\/shape" => "effects_and_filters/video_effects/alpha_mask_keying/shape_alpha.html",
"^effect_link\/strobe" => "effects_and_filters/video_effects/alpha_mask_keying/alpha_strobing.html",
"^effect_link\/avfilter.despill" => "effects_and_filters/video_effects/alpha_mask_keying/despill.html",
"^effect_link\/spot_remover" => "effects_and_filters/video_effects/alpha_mask_keying/spot_remover.html",
"^effect_link\/mask_start-frei0r.alphaspot" => "effects_and_filters/video_effects/alpha_mask_keying/alpha_shapes_mask.html",
"^effect_link\/frei0r.premultiply" => "effects_and_filters/video_effects/alpha_mask_keying/premultiply.html",
"^effect_link\/mask_apply" => "effects_and_filters/video_effects/alpha_mask_keying/mask_apply.html",
"^effect_link\/frei0r.transparency" => "effects_and_filters/video_effects/alpha_mask_keying/transparency.html",
"^effect_link\/mask_start-shape" => "effects_and_filters/video_effects/alpha_mask_keying/shape_alpha_mask.html",
"^effect_link\/frei0r.bluescreen0r" => "effects_and_filters/video_effects/alpha_mask_keying/bluescreen0r.html",
"^effect_link\/mask_start-rotoscoping" => "effects_and_filters/video_effects/alpha_mask_keying/rotoscoping_mask.html",
"^effect_link\/frei0r.bigsh0t_stabilize_360" => "effects_and_filters/video_effects/vr360_and_3d/vr360_stabilize.html",
"^effect_link\/frei0r.bigsh0t_hemi_to_eq" => "effects_and_filters/video_effects/vr360_and_3d/vr360_hemi2equi.html",
"^effect_link\/frei0r.bigsh0t_rect_to_eq" => "effects_and_filters/video_effects/vr360_and_3d/vr360_equi2rect.html",
"^effect_link\/avfilter.stereo3d" => "effects_and_filters/video_effects/vr360_and_3d/stereoscopic_3d.html",
"^effect_link\/frei0r.bigsh0t_rect_to_eq" => "effects_and_filters/video_effects/vr360_and_3d/vr360_rect2equi.html",
"^effect_link\/frei0r.bigsh0t_eq_mask" => "effects_and_filters/video_effects/vr360_and_3d/vr360_equi_mask.html",
"^effect_link\/frei0r.bigsh0t_eq_to_stereo" => "effects_and_filters/video_effects/vr360_and_3d/vr360_equi2stereo.html",
"^effect_link\/frei0r.bigsh0t_transform_360" => "effects_and_filters/video_effects/vr360_and_3d/vr360_transform.html",
"^effect_link\/avfilter.grayworld" => "effects_and_filters/video_effects/misc/grayworld.html",
"^effect_link\/avfilter.huesaturation" => "effects_and_filters/video_effects/misc/huesaturation.html",
"^effect_link\/avfilter.hsvkey" => "effects_and_filters/video_effects/misc/hsvkey.html",
"^effect_link\/deinterlace" => "effects_and_filters/video_effects/misc/xine_deinterlacer.html",
"^effect_link\/frei0r.pixs0r" => "effects_and_filters/video_effects/misc/pixs0r.html",
"^effect_link\/gpsgraphic" => "effects_and_filters/video_effects/misc/gps_graphic.html",
"^effect_link\/avfilter.scharr" => "effects_and_filters/video_effects/misc/scharr.html",
"^effect_link\/frei0r.denoise_hqdn3d" => "effects_and_filters/video_effects/misc/hqdn3d.html",
"^effect_link\/frei0r.kaleid0sc0pe" => "effects_and_filters/video_effects/misc/kaleid0sc0pe.html",
"^effect_link\/avfilter.backgroundkey" => "effects_and_filters/video_effects/misc/backgroundkey.html",
"^effect_link\/avfilter.alphaextract" => "effects_and_filters/video_effects/misc/alphaextract.html",
"^effect_link\/avfilter.hsvhold" => "effects_and_filters/video_effects/misc/hsvhold.html",
"^effect_link\/avfilter.avgblur" => "effects_and_filters/video_effects/blur_and_sharpen/average_blur.html",
"^effect_link\/box_blur" => "effects_and_filters/video_effects/blur_and_sharpen/boxblur.html",
"^effect_link\/avfilter.dblur" => "effects_and_filters/video_effects/blur_and_sharpen/dblur.html",
"^effect_link\/avfilter.bilateral" => "effects_and_filters/video_effects/blur_and_sharpen/bilateral.html",
"^effect_link\/avfilter.boxblur" => "effects_and_filters/video_effects/blur_and_sharpen/planes_blur.html",
"^effect_link\/avfilter.gblur" => "effects_and_filters/video_effects/blur_and_sharpen/gaussian_blur.html",
"^effect_link\/avfilter.smartblur" => "effects_and_filters/video_effects/blur_and_sharpen/smartblur.html",
"^effect_link\/avfilter.sab" => "effects_and_filters/video_effects/blur_and_sharpen/shape_adaptive_blur.html",
"^effect_link\/avfilter.unsharp" => "effects_and_filters/video_effects/blur_and_sharpen/sharp_unsharp.html",
"^effect_link\/avfilter.chromanr" => "effects_and_filters/video_effects/grain_and_noise/chroma_noise_reduction.html",
"^effect_link\/avfilter.gradfun" => "effects_and_filters/video_effects/grain_and_noise/gradfun.html",
"^effect_link\/avfilter.noise" => "effects_and_filters/video_effects/grain_and_noise/video_noise_generator.html",
"^effect_link\/avfilter.median" => "effects_and_filters/video_effects/grain_and_noise/median.html",
"^effect_link\/avfilter.colorspace" => "effects_and_filters/video_effects/image_adjustment/color_space.html",
"^effect_link\/avfilter.setrange" => "effects_and_filters/video_effects/image_adjustment/set_range.html",
"^effect_link\/avfilter.xbr" => "effects_and_filters/video_effects/image_adjustment/xbr_interpolator.html",
"^effect_link\/avfilter.aphaseshift" => "effects_and_filters/video_effects/image_adjustment/phase.html",
"^effect_link\/avfilter.kerndeint" => "effects_and_filters/video_effects/image_adjustment/kernel_deinterlacer.html",
"^effect_link\/avfilter.deband" => "effects_and_filters/video_effects/image_adjustment/deband.html",
"^effect_link\/avfilter.dilation" => "effects_and_filters/video_effects/image_adjustment/dilation.html",
"^effect_link\/avfilter.colormatrix" => "effects_and_filters/video_effects/image_adjustment/color_matrix.html",
"^effect_link\/avfilter.mcdeint" => "effects_and_filters/video_effects/image_adjustment/motion_compensation_deinterlacer.html",
"^effect_link\/avfilter.epx" => "effects_and_filters/video_effects/image_adjustment/epx_scaler.html",
"^effect_link\/avfilter.super2xsai" => "effects_and_filters/video_effects/image_adjustment/super2xsai.html",
"^effect_link\/avfilter.hqx" => "effects_and_filters/video_effects/image_adjustment/hqx_interpolator.html",
"^effect_link\/avfilter.il" => "effects_and_filters/video_effects/image_adjustment/interleave_deinterleave.html",
"^effect_link\/avfilter.erosion" => "effects_and_filters/video_effects/image_adjustment/erosion.html",
"^effect_link\/avfilter.fieldorder" => "effects_and_filters/video_effects/image_adjustment/interlace_field_order.html",
"^effect_link\/avfilter.waveform" => "effects_and_filters/video_effects/utility/video_waveform_monitor.html",
"^effect_link\/avfilter.datascope" => "effects_and_filters/video_effects/utility/datascope.html",
"^effect_link\/avfilter.ciescope" => "effects_and_filters/video_effects/utility/ciescope.html",
"^effect_link\/frei0r.rgbparade" => "effects_and_filters/video_effects/utility/rgb_parade.html",
"^effect_link\/frei0r.d90stairsteppingfix" => "effects_and_filters/video_effects/utility/nikon_d90_stairstepping_fix.html",
"^effect_link\/frei0r.distort0r" => "effects_and_filters/video_effects/transform_distort_perspective/distort.html",
"^effect_link\/avfilter.transpose" => "effects_and_filters/video_effects/transform_distort_perspective/transpose.html",
"^effect_link\/frei0r.flippo" => "effects_and_filters/video_effects/transform_distort_perspective/flippo.html",
"^effect_link\/avfilter.fillborders" => "effects_and_filters/video_effects/transform_distort_perspective/fill_borders.html",
"^effect_link\/pillar_echo" => "effects_and_filters/video_effects/transform_distort_perspective/pillar_echo.html",
"^effect_link\/avfilter.zoompan" => "effects_and_filters/video_effects/transform_distort_perspective/zoom_pan.html",
"^effect_link\/avfilter.hflip" => "effects_and_filters/video_effects/transform_distort_perspective/flip_horizontally.html",
"^effect_link\/avfilter.scroll" => "effects_and_filters/video_effects/transform_distort_perspective/scroll.html",
"^effect_link\/qtcrop" => "effects_and_filters/video_effects/transform_distort_perspective/crop_padding.html",
"^effect_link\/frei0r.elastic_scale" => "effects_and_filters/video_effects/transform_distort_perspective/elastic_scale_filter.html",
"^effect_link\/avfilter.shear" => "effects_and_filters/video_effects/transform_distort_perspective/shear.html",
"^effect_link\/avfilter.vflip" => "effects_and_filters/video_effects/transform_distort_perspective/flip_vertically.html",
"^effect_link\/avfilter.rgbashift" => "effects_and_filters/video_effects/stylize/rgba_shift.html",
"^effect_link\/avfilter.photosensitivity" => "effects_and_filters/video_effects/stylize/photosensitivity.html",
"^effect_link\/frei0r.threelay0r" => "effects_and_filters/video_effects/stylize/3-level_threshold.html",
"^effect_link\/frei0r.emboss" => "effects_and_filters/video_effects/stylize/emboss.html",
"^effect_link\/avfilter.edgedetect" => "effects_and_filters/video_effects/stylize/edge_detection.html",
"^effect_link\/avfilter.roberts" => "effects_and_filters/video_effects/stylize/roberts.html",
"^effect_link\/frei0r.aech0r" => "effects_and_filters/video_effects/stylize/aech0r.html",
"^effect_link\/avfilter.chromashift" => "effects_and_filters/video_effects/stylize/chroma_shift.html",
"^effect_link\/frei0r.twolay0r" => "effects_and_filters/video_effects/stylize/binarize_dynamically.html",
"^effect_link\/avfilter.kirsch" => "effects_and_filters/video_effects/stylize/kirsch.html",
"^effect_link\/avfilter.elbg" => "effects_and_filters/video_effects/stylize/elbg_posterizer.html",
"^effect_link\/avfilter.prewitt" => "effects_and_filters/video_effects/stylize/prewitt.html",
"^effect_link\/frei0r.posterize" => "effects_and_filters/video_effects/stylize/posterize.html",
"^effect_link\/frei0r.glitch0r" => "effects_and_filters/video_effects/motion/glitch0r.html",
"^effect_link\/frei0r.vertigo" => "effects_and_filters/video_effects/motion/vertigo.html",
"^effect_link\/avfilter.colorcorrect" => "effects_and_filters/video_effects/color_image_correction/color_correct.html",
"^effect_link\/avfilter.normalize" => "effects_and_filters/video_effects/color_image_correction/normalize_rgb_video.html",
"^effect_link\/avfilter.colorcontrast" => "effects_and_filters/video_effects/color_image_correction/color_contrast.html",
"^effect_link\/avfilter.colorchannelmixer" => "effects_and_filters/video_effects/color_image_correction/color_channel_mixer.html",
"^effect_link\/avfilter.fftfilt" => "effects_and_filters/video_effects/color_image_correction/fft-based_fir.html",
"^effect_link\/avfilter.colortemperature" => "effects_and_filters/video_effects/color_image_correction/color_temperature.html",
"^effect_link\/avfilter.exposure" => "effects_and_filters/video_effects/color_image_correction/exposure.html",
"^effect_link\/frei0r.contrast0r" => "effects_and_filters/video_effects/color_image_correction/contrast.html",
"^effect_link\/avfilter.swapuv" => "effects_and_filters/video_effects/color_image_correction/swapuv.html",
"^effect_link\/frei0r.bw0r" => "effects_and_filters/video_effects/color_image_correction/bw0r.html",
"^effect_link\/avfilter.colorlevels" => "effects_and_filters/video_effects/color_image_correction/color_levels.html",
"^effect_link\/lumaliftgaingamma" => "effects_and_filters/video_effects/color_image_correction/lumaliftgammagain.html",
"^effect_link\/frei0r.colorize" => "effects_and_filters/video_effects/color_image_correction/colorize.html",
"^effect_link\/avfilter.limiter" => "effects_and_filters/video_effects/color_image_correction/limiter.html",
"^effect_link\/gamma" => "effects_and_filters/video_effects/color_image_correction/gamma_keyframe.html",
"^effect_link\/avfilter.selectivecolor" => "effects_and_filters/video_effects/color_image_correction/CMYK_adjust.html",
"^effect_link\/avfilter.eq" => "effects_and_filters/video_effects/color_image_correction/video_equalizer.html",
"^effect_link\/avfilter.colorhold" => "effects_and_filters/video_effects/color_image_correction/color_hold.html",
"^effect_link\/avfilter.monochrome" => "effects_and_filters/video_effects/color_image_correction/monochrome.html",
"^effect_link\/avfilter.histeq" => "effects_and_filters/video_effects/color_image_correction/histogram_equalizer.html",
"^effect_link\/avfilter.colorbalance" => "effects_and_filters/video_effects/color_image_correction/color_balance.html",
"^effect_link\/avfilter.colorize" => "effects_and_filters/video_effects/color_image_correction/color_overlay.html",
"^effect_link\/avfilter.vibrance" => "effects_and_filters/video_effects/color_image_correction/vibrance.html",
"^effect_link\/frei0r.normaliz0r" => "effects_and_filters/video_effects/color_image_correction/normaliz0r.html",
"^effect_link\/chroma_hold" => "effects_and_filters/video_effects/color_image_correction/chroma_keep.html",
"^effect_link\/frei0r.B" => "effects_and_filters/video_effects/color_image_correction/channel_extractors.html",
"^effect_link\/frei0r.G" => "effects_and_filters/video_effects/color_image_correction/channel_extractors.html",
"^effect_link\/frei0r.R" => "effects_and_filters/video_effects/color_image_correction/channel_extractors.html",
"^effect_link\/avfilter.negate" => "effects_and_filters/video_effects/color_image_correction/negate.html",
"^effect_link\/gpstext" => "effects_and_filters/video_effects/generate/gps_text.html",
"^effect_link\/timer" => "effects_and_filters/video_effects/generate/timer.html",
"^effect_link\/ladspa" => "effects_and_filters/audio_effects/ladspa_plugins/index.html",
"^effect_link\/rboctaveshift" => "effects_and_filters/audio_effects/pitch_and_time/index.html",
"^effect_link\/rbpitch" => "effects_and_filters/audio_effects/pitch_and_time/index.html",
"^effect_link\/sox_stretch" => "effects_and_filters/audio_effects/pitch_and_time/index.html",
"^effect_link\/avfilter.acrusher" => "effects_and_filters/audio_effects/tools/crusher.html",
"^effect_link\/avfilter.crystalizer" => "effects_and_filters/audio_effects/tools/crystalizer.html",
"^effect_link\/avfilter.dcshift" => "effects_and_filters/audio_effects/tools/dc_shift.html",
"^effect_link\/panner" => "effects_and_filters/audio_effects/channels/audio_pan.html",
"^effect_link\/channelswap" => "effects_and_filters/audio_effects/channels/copy_channels_to_stereo.html",
"^effect_link\/audiobalance" => "effects_and_filters/audio_effects/channels/balance.html",
"^effect_link\/audiomap" => "effects_and_filters/audio_effects/channels/audiomap.html",
"^effect_link\/channelcopy" => "effects_and_filters/audio_effects/channels/stereo_to_mono.html",
"^effect_link\/audiopan" => "effects_and_filters/audio_effects/channels/pan.html",
"^effect_link\/swapchannels" => "effects_and_filters/audio_effects/channels/swap_channels.html",
"^effect_link\/mono" => "effects_and_filters/audio_effects/channels/mixdown.html",
"^effect_link\/avfilter.compand" => "effects_and_filters/audio_effects/volume_and_dynamics/compressor_expander.html",
"^effect_link\/fadeout" => "effects_and_filters/audio_effects/volume_and_dynamics/fade_out.html",
"^effect_link\/loudness" => "effects_and_filters/audio_effects/volume_and_dynamics/normalize_2pass.html",
"^effect_link\/dynamic_loudness" => "effects_and_filters/audio_effects/volume_and_dynamics/normalize.html",
"^effect_link\/avfilter.deesser" => "effects_and_filters/audio_effects/volume_and_dynamics/deesser.html",
"^effect_link\/fadein" => "effects_and_filters/audio_effects/volume_and_dynamics/fade_in.html",
"^effect_link\/avfilter.alimiter" => "effects_and_filters/audio_effects/volume_and_dynamics/limiter.html",
"^transition_link\/composite" => "compositing/transitions/composite.html",
"^transition_link\/frei0r.addition" => "compositing/blending_modes.html",
"^transition_link\/frei0r.addition_alpha" => "compositing/blending_modes.html",
"^transition_link\/frei0r.alphain" => "compositing/compositions/alpha_operations.html#alpha-in",
"^transition_link\/frei0r.alphaout" => "compositing/compositions/alpha_operations.html#alpha-out",
"^transition_link\/frei0r.alphaover" => "compositing/compositions/alpha_operations.html#alpha-over",
"^transition_link\/frei0r.alphaatop" => "compositing/compositions/alpha_operations.html#alpha-atop",
"^transition_link\/frei0r.alphaxor" => "compositing/compositions/alpha_operations.html#alpha-xor",
"^transition_link\/frei0r.hue" => "compositing/blending_modes.html",
"^transition_link\/frei0r.screen" => "compositing/blending_modes.html",
"^transition_link\/wipe" => "compositing/transitions//wipe.html",
"^transition_link\/frei0r.sleid0r_wipe-circle" => "compositing/transitions/transitions_list.html#circle-wipe",
"^transition_link\/frei0r.sleid0r_wipe-barn-door-h" => "compositing/transitions/transitions_list.html#horizontal-barn-door-wipe",
"^transition_link\/frei0r.sleid0r_push-down" => "compositing/transitions/transitions_list.html#push-down-up",
"^transition_link\/frei0r.sleid0r_push-up" => "compositing/transitions/transitions_list.html#push-down-up",
"^transition_link\/frei0r.sleid0r_push-left" => "compositing/transitions/transitions_list.html#push-left-right",
"^transition_link\/frei0r.sleid0r_push-right" => "compositing/transitions/transitions_list.html#push-left-right",
"^transition_link\/frei0r.sleid0r_wipe-rect" => "compositing/transitions/transitions_list.html#rectangular-wipe",
"^transition_link\/slide" => "compositing/transitions/slide.html",
"^transition_link\/frei0r.sleid0r_slide-down" => "compositing/transitions/transitions_list.html#slide-down-up",
"^transition_link\/frei0r.sleid0r_slide-up" => "compositing/transitions/transitions_list.html#slide-down-up",
"^transition_link\/frei0r.sleid0r_slide-left" => "compositing/transitions/transitions_list.html#slide-left-right",
"^transition_link\/frei0r.sleid0r_slide-right" => "compositing/transitions/transitions_list.html#slide-left-right",
"^transition_link\/frei0r.sleid0r_wipe-barn-door-v" => "compositing/transitions/transitions_list.html#vertical-barn-door-wipe",
"^transition_link\/composite" => "compositing/transitions/composite.html",
"^transition_link\/wipe" => "compositing/transitions/wipe.html",
"^transition_link\/qtblend" => "compositing/compositions/composite_and_transform.html",
"^transition_link\/frei0r.addition" => "compositing/compositions/blend_modes.html#addition-addition-alpha",
"^transition_link\/frei0r.addition_alpha" => "compositing/compositions/blend_modes.html#addition-addition-alpha",
"^transition_link\/frei0r.burn" => "compositing/compositions/blend_modes.html#burn",
"^transition_link\/frei0r.color_only" => "compositing/compositions/blend_modes.html#color-only",
"^transition_link\/frei0r.darken" => "compositing/compositions/blend_modes.html#darken",
"^transition_link\/frei0r.difference" => "compositing/compositions/blend_modes.html#difference",
"^transition_link\/frei0r.divide" => "compositing/compositions/blend_modes.html#divide",
"^transition_link\/frei0r.dodge" => "compositing/compositions/blend_modes.html#dodge",
"^transition_link\/frei0r.grain_extract" => "compositing/compositions/blend_modes.html#grain-extract",
"^transition_link\/frei0r.grain_merge" => "compositing/compositions/blend_modes.html#grain-merge",
"^transition_link\/frei0r.hardlight" => "compositing/compositions/blend_modes.html#hardlight",
"^transition_link\/frei0r.hue" => "compositing/compositions/blend_modes.html#hue",
"^transition_link\/frei0r.lighten" => "compositing/compositions/blend_modes.html#lighten",
"^transition_link\/frei0r.multiply" => "compositing/compositions/blend_modes.html#multiply",
"^transition_link\/frei0r.overlay" => "compositing/compositions/blend_modes.html#overlay",
"^transition_link\/frei0r.saturation" => "compositing/compositions/blend_modes.html#saturation",
"^transition_link\/frei0r.screen" => "compositing/compositions/blend_modes.html#screen",
"^transition_link\/frei0r.softlight" => "compositing/compositions/blend_modes.html#softlight",
"^transition_link\/frei0r.subtract" => "compositing/compositions/blend_modes.html#subtract",
"^transition_link\/frei0r.sleid0r_wipe-down" => "compositing/transitions/transitions_list.html#wipe-down-up",
"^transition_link\/frei0r.sleid0r_wipe-up" => "compositing/transitions/transitions_list.html#wipe-down-up",
"^transition_link\/frei0r.sleid0r_wipe-left" => "compositing/transitions/transitions_list.html#wipe-left-right",
"^transition_link\/frei0r.sleid0r_wipe-right" => "compositing/transitions/transitions_list.html#wipe-left-right",
// Unknown effect short link, redirect to effects overview
"^effect_link" => "effects_and_filters/effects_and_filters_list.html",
// Unknown transition short link, redirect to transition overview
"^transition_link" => "compositing.html"
);
//// SETTINGS END
//// CHANGES SHOULD NOT BE NEEDED TO THE BELOW
// Helper function to determine the most appropriate language for the user
// Parameters:
// $request The web path that the user is trying to reach
// $browser_languages The languages accepted by the user browser, in Accept-Language format
// $supported_languages Array of languages that we support - in ISO language code format
function determine_appropriate_language( $request, $browser_languages, $supported_languages )
{
// First we start by looking at the request we have received
// If this contains a language code, then we should be using that as the user has chosen to use that language explicitly
// We assume that this language is supported
if( preg_match( '/^([a-z][a-z](_[A-Z][A-Z])?)\//', $request, $result ) ) {
// Then the user has specified a language - let's use that!
return $result[1];
}
// Now that we know that the URL has not specified a language we can move on to looking at Accept-Language
// First split the list up by the language separator
$browser_requested_languages = explode( ",", $browser_languages );
// Now go through each browser requested language in turn
foreach( $browser_requested_languages as $language ) {
// First as this might have a weighting value on it, we need to rip that off
// Safest way to do this is just to split again by the appropriate separator for that
$components = explode(";", $language);
$language = $components[0];
if( preg_match( '/^zh(-han[ts])?(-[a-z]{2})?$/i', $language, $result, PREG_UNMATCHED_AS_NULL ) ) {
// Handle Chinese as a special case. Chinese lang tags may carry
// a `Hant` or `Hans` script subtag, and/or a region subtag.
// As long as a translation for `zh_HK` isn't available, this
// matching is sufficient.
if( strcasecmp($result[1], "-hant") === 0 ) {
$language = "zh_TW";
} else if( strcasecmp($result[1], "-hans") === 0 ) {
$language = "zh_CN";
} else if( strcasecmp($result[2], "-tw") === 0 || strcasecmp($result[2], "-hk") === 0 || strcasecmp($result[2], "-mo") === 0 ) {
$language = "zh_TW";
} else {
// Note this also matches `zh` without script or region subtag.
$language = "zh_CN";
}
} else {
// Browsers use dashes to seperate language variants
// But KDE translation systems use underscores for this so ensure we are consistent here
$language = str_replace("-", "_", $language);
}
// Is this one of our supported languages?
if( in_array($language, $supported_languages) ) {
// Then we have a winner!
return $language;
}
}
// Finally if we found nothing we fallback to English
return 'en';
}
// Start - Retrieve the values we need to work with here
$requested_url = $_SERVER['REQUEST_URI'];
$requested_languages = $_SERVER["HTTP_ACCEPT_LANGUAGE"];
// Before we can do anything else we need to clean up the URL we have received to remove the leading slash
$requested_url = substr($requested_url, 1);
// Now determine the language we should be sending the user to
$language = determine_appropriate_language( $requested_url, $requested_languages, $supported_languages );
// Split out the content part of the URL
// We will need this for the matching we are about to do above
if( !preg_match( '/^([a-z][a-z](_[A-Z][A-Z])?\/)?(.*)/', $requested_url, $result ) ) {
// This shouldn't happen...
// But in case it does, serve a 404 and bail
http_response_code(404);
include("../$language/404.html");
exit();
}
// Save our result...
$requested_page = $result[3];
// First do a local check and see if $language/$requested_page exists..
// This allows for urls such as https://docs.krita.org/user_manual/getting_started/starting_krita.html to work
if( file_exists("../$language/$requested_page") ) {
// Then redirect them there
header("HTTP/1.1 301 Moved Permanently");
header("Location: /$language/$requested_page");
exit();
}
// Go across all of our redirect rules now and see if we have any matches
foreach( $redirect_rules as $rule => $replacement ) {
// Try to match it...
if( !preg_match( "/$rule/", $requested_page, $result ) ) {
// Then we need to try another one...
continue;
}
// We have a winner!
// Perform the redirect
header("HTTP/1.1 301 Moved Permanently");
header("Location: /$language/$replacement");
exit();
}
// Alas it looks like we have no match :(
// Send a 404
http_response_code(404);
include("../$language/404.html");
exit();
?>