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Edit File: tohtml.vim

" Vim plugin for converting a syntax highlighted file to HTML. " Maintainer: Ben Fritz <fritzophrenic@gmail.com> " Last Change: 2019 Nov 13 " " The core of the code is in $VIMRUNTIME/autoload/tohtml.vim and " $VIMRUNTIME/syntax/2html.vim " if exists('g:loaded_2html_plugin') finish endif let g:loaded_2html_plugin = 'vim8.1_v2' " " Changelog: {{{ " 8.1_v2 (this version): - Fix Bitbucket issue #19: fix calculation of tab " stop position to use in expanding a tab, when that " tab occurs after a syntax match which in turn " comes after previously expanded tabs. " - Set eventignore while splitting a window for the " destination file to ignore FileType events; " speeds up processing when the destination file " already exists and HTML highlight takes too long. " - Fix Bitbucket issue #20: progress bar could not be " seen when DiffDelete background color matched " StatusLine background color. Added TOhtmlProgress " highlight group for manual user override, but " calculate it to be visible compared to StatusLine " by default. " - Fix Bitbucket issue #1: Remove workaround for old " browsers which don't support 'ch' CSS unit, since " all modern browsers, including IE>=9, support it. " - Fix Bitbucket issue #10: support termguicolors " - Fix Bitbucket issue #21: default to using " generated content instead of <input> tags for " uncopyable text, so that text is correctly " prevented from being copied in chrome. Use " g:html_use_input_for_pc option to control the " method used. " - Switch to HTML5 to allow using vnu as a validator " in unit test. " - Fix fallback sizing of <input> tags for browsers " without "ch" support. " - Fix cursor on unselectable diff filler text. " 8.1_v1 (Vim 8.1.0528): - Fix Bitbucket issue #6: Don't generate empty " script tag. " - Fix Bitbucket issue #5: javascript should " declare variables with "var". " - Fix Bitbucket issue #13: errors thrown sourcing " 2html.vim directly when plugins not loaded. " - Fix Bitbucket issue #16: support 'vartabstop'. " " 7.4 updates: {{{ " 7.4_v2 (Vim 7.4.0899): Fix error raised when converting a diff containing " an empty buffer. Jan Stocker: allow g:html_font to " take a list so it is easier to specfiy fallback " fonts in the generated CSS. " 7.4_v1 (Vim 7.4.0000): Fix modeline mangling for new "Vim:" format, and " also for version-specific modelines like "vim>703:". "}}} " " 7.3 updates: {{{ " 7.3_v14 (Vim 7.3.1246): Allow suppressing line number anchors using " g:html_line_ids=0. Allow customizing " important IDs (like line IDs and fold IDs) using " g:html_id_expr evaluated when the buffer conversion " is started. " 7.3_v13 (Vim 7.3.1088): Keep foldmethod at manual in the generated file and " insert modeline to set it to manual. " Fix bug: diff mode with 2 unsaved buffers creates a " duplicate of one buffer instead of including both. " Add anchors to each line so you can put '#L123' " or '#123' at the end of the URL to jump to line 123 " (idea by Andy Spencer). Add javascript to open folds " to show the anchor being jumped to if it is hidden. " Fix XML validation error: &nsbp; not part of XML. " Allow TOhtml to chain together with other commands " using |. " 7.3_v12 (Vim 7.3.0616): Fix modeline mangling to also work for when multiple " highlight groups make up the start-of-modeline text. " Improve render time of page with uncopyable regions " by not using one-input-per-char. Change name of " uncopyable option from html_unselectable to " html_prevent_copy. Added html_no_invalid option and " default to inserting invalid markup for uncopyable " regions to prevent MS Word from pasting undeletable " <input> elements. Fix 'cpo' handling (Thilo Six). " 7.3_v12b1: Add html_unselectable option. Rework logic to " eliminate post-processing substitute commands in " favor of doing the work up front. Remove unnecessary " special treatment of 'LineNr' highlight group. Minor " speed improvements. Fix modeline mangling in " generated output so it works for text in the first " column. Fix missing line number and fold column in " diff filler lines. Fix that some fonts have a 1px " gap (using a dirty hack, improvements welcome). Add " "colorscheme" meta tag. Does NOT include support for " the new default foldtext added in v11, as the patch " adding it has not yet been included in Vim. " 7.3_v11 ( unreleased ): Support new default foldtext from patch by Christian " Brabandt in " http://groups.google.com/d/topic/vim_dev/B6FSGfq9VoI/discussion. " This patch has not yet been included in Vim, thus " these changes are removed in the next version. " 7.3_v10 (Vim 7.3.0227): Fix error E684 when converting a range wholly inside " multiple nested folds with dynamic folding on. " Also fix problem with foldtext in this situation. " 7.3_v9 (Vim 7.3.0170): Add html_pre_wrap option active with html_use_css " and without html_no_pre, default value same as " 'wrap' option, (Andy Spencer). Don't use " 'fileencoding' for converted document encoding if " 'buftype' indicates a special buffer which isn't " written. " 7.3_v8 (Vim 7.3.0100): Add html_expand_tabs option to allow leaving tab " characters in generated output (Andy Spencer). " Escape text that looks like a modeline so Vim " doesn't use anything in the converted HTML as a " modeline. Bugfixes: Fix folding when a fold starts " before the conversion range. Remove fold column when " there are no folds. " 7.3_v7 (Vim 7-3-0063): see betas released on vim_dev below: " 7.3_v7b3: Fixed bug, convert Unicode to UTF-8 all the way. " 7.3_v7b2: Remove automatic detection of encodings that are not " supported by all major browsers according to " http://wiki.whatwg.org/wiki/Web_Encodings and " convert to UTF-8 for all Unicode encodings. Make " HTML encoding to Vim encoding detection be " case-insensitive for built-in pairs. " 7.3_v7b1: Remove use of setwinvar() function which cannot be " called in restricted mode (Andy Spencer). Use " 'fencoding' instead of 'encoding' to determine by " charset, and make sure the 'fenc' of the generated " file matches its indicated charset. Add charsets for " all of Vim's natively supported encodings. " 7.3_v6 (Vim 7.3.0000): Really fix bug with 'nowrapscan', 'magic' and other " user settings interfering with diff mode generation, " trailing whitespace (e.g. line number column) when " using html_no_pre, and bugs when using " html_hover_unfold. " 7.3_v5 ( unreleased ): Fix bug with 'nowrapscan' and also with out-of-sync " folds in diff mode when first line was folded. " 7.3_v4 (Vim 7.3.0000): Bugfixes, especially for xhtml markup, and diff mode " 7.3_v3 (Vim 7.3.0000): Refactor option handling and make html_use_css " default to true when not set to anything. Use strict " doctypes where possible. Rename use_xhtml option to " html_use_xhtml for consistency. Use .xhtml extension " when using this option. Add meta tag for settings. " 7.3_v2 (Vim 7.3.0000): Fix syntax highlighting in diff mode to use both the " diff colors and the normal syntax colors " 7.3_v1 (Vim 7.3.0000): Add conceal support and meta tags in output "}}} "}}} " TODO: {{{ " * Check the issue tracker: " https://bitbucket.org/fritzophrenic/vim-tohtml/issues?status=new&status=open " * Options for generating the CSS in external style sheets. New :TOcss " command to convert the current color scheme into a (mostly) generic CSS " stylesheet which can be re-used. Alternate stylesheet support? Good start " by Erik Falor " ( https://groups.google.com/d/topic/vim_use/7XTmC4D22dU/discussion ). " * Add optional argument to :TOhtml command to specify mode (gui, cterm, " term) to use for the styling. Suggestion by "nacitar". " * Add way to override or specify which RGB colors map to the color numbers " in cterm. Get better defaults than just guessing? Suggestion by "nacitar". " * Disable filetype detection until after all processing is done. " * Add option for not generating the hyperlink on stuff that looks like a " URL? Or just color the link to fit with the colorscheme (and only special " when hovering)? " * Bug: Opera does not allow printing more than one page if uncopyable " regions is turned on. Possible solution: Add normal text line numbers with " display:none, set to display:inline for print style sheets, and hide " <input> elements for print, to allow Opera printing multiple pages (and " other uncopyable areas?). May need to make the new text invisible to IE " with conditional comments to prevent copying it, IE for some reason likes " to copy hidden text. Other browsers too? " * Bug: still a 1px gap throughout the fold column when html_prevent_copy is " "fn" in some browsers. Specifically, in Chromium on Ubuntu (but not Chrome " on Windows). Perhaps it is font related? " * Bug: still some gaps in the fold column when html_prevent_copy contains " 'd' and showing the whole diff (observed in multiple browsers). Only gaps " on diff lines though. " * Undercurl support via CSS3, with fallback to dotted or something: " https://groups.google.com/d/topic/vim_use/BzXA6He1pHg/discussion " * Redo updates for modified default foldtext (v11) when/if the patch is " accepted to modify it. " * Test case +diff_one_file-dynamic_folds+expand_tabs-hover_unfold " +ignore_conceal-ignore_folding+no_foldcolumn+no_pre+no_progress " +number_lines-pre_wrap-use_css+use_xhtml+whole_filler.xhtml " does not show the whole diff filler as it is supposed to? " * Bug: when 'isprint' is wrong for the current encoding, will generate " invalid content. Can/should anything be done about this? Maybe a separate " plugin to correct 'isprint' based on encoding? " * Check to see if the windows-125\d encodings actually work in Unix without " the 8bit- prefix. Add prefix to autoload dictionaries for Unix if not. " * Font auto-detection similar to " http://www.vim.org/scripts/script.php?script_id=2384 but for a variety of " platforms. " * Pull in code from http://www.vim.org/scripts/script.php?script_id=3113 : " - listchars support " - full-line background highlight " - other? " * Make it so deleted lines in a diff don't create side-scrolling (get it " free with full-line background highlight above). " * Restore open/closed folds and cursor position after processing each file " with option not to restore for speed increase. " * Add extra meta info (generation time, etc.)? " * Tidy up so we can use strict doctype in even more situations " * Implementation detail: add threshold for writing the lines to the html " buffer before we're done (5000 or so lines should do it) " * TODO comments for code cleanup scattered throughout "}}} " Define the :TOhtml command when: " - 'compatible' is not set " - this plugin or user override was not already loaded " - user commands are available. {{{ if !&cp && !exists(":TOhtml") && has("user_commands") command -range=% -bar TOhtml :call tohtml#Convert2HTML(<line1>, <line2>) endif "}}} " Make sure any patches will probably use consistent indent " vim: ts=8 sw=2 sts=2 noet fdm=marker