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