2020-10-05 22:31:40 +00:00
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/**
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2020-10-24 21:45:32 +00:00
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* providers/completion_item.ts
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2020-10-05 22:31:40 +00:00
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*
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* @author CismonX <admin@cismon.net>
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* @license MIT
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*/
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import * as vscode from 'vscode';
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2020-10-26 19:37:05 +00:00
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import Options from '../options';
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import { CompletionItem } from '../utils/types';
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2020-10-05 22:31:40 +00:00
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2020-10-08 14:31:54 +00:00
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/**
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2020-10-18 17:31:43 +00:00
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* Provide code completion info for Texinfo documents.
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2020-10-08 14:31:54 +00:00
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*/
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2020-10-24 21:45:32 +00:00
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export default class CompletionItemProvider implements vscode.CompletionItemProvider {
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2020-10-05 22:31:40 +00:00
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2020-10-26 19:37:05 +00:00
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private completionItems?: CompletionItem[];
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2020-10-18 15:51:00 +00:00
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/**
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* Full list of completion items.
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*
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* Excerpted from the {@link https://www.gnu.org/software/texinfo/manual/texinfo GNU Texinfo manual},
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* which is licensed under the GNU Free Documentation License.
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*/
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2020-10-26 19:37:05 +00:00
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private get values() {
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const enableSnippets = Options.enableSnippets;
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const hideSnippetCommands = Options.hideSnippetCommands;
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return this.completionItems ??= [
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command('ampchar', 'Insert an ampersand, "&"', { hasEmptyArguments: true }),
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command('atchar', 'Insert an at sign, "@"', { hasEmptyArguments: true }),
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command('backslashchar', 'Insert a blackslash, "\\"', { hasEmptyArguments: true }),
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command('lbracechar', 'Insert a left brace, "{"', { hasEmptyArguments: true }),
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command('rbracechar', 'Insert a right brace, "{"', { hasEmptyArguments: true }),
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command('AA', 'Generate the uppercase Scandinavian A-ring letter, "Å"', { hasEmptyArguments: true }),
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command('aa', 'Generate the lowercase Scandinavian A-ring letter, "å"', { hasEmptyArguments: true }),
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...braceCommand('abbr', 'Indicate a general abbreviation', 1, 'abbreviation', 'meaning'),
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...braceCommand('acronym', 'Indicate an acronym in all capital letters', 1, 'acronym', 'meaning'),
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command('AE', 'Generate the uppercase AE ligatures, "Æ"', { hasEmptyArguments: true }),
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command('ae', 'Generate the lowercase AE ligatures, "æ"', { hasEmptyArguments: true }),
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command('afivepaper', 'Change page dimensions for the A5 paper size'),
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command('afourlatex', 'Change page dimensions for the A4 paper size'),
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command('afourpaper', 'Change page dimensions for the A4 paper size'),
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command('afourwide', 'Change page dimensions for the A4 paper size'),
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snippet('alias', 'alias', 'Defines a new command to be just like an existing one', 0,
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'@alias new=existing', 'alias ${1:new}=${2:existing}'),
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command('alias', 'Defines a new command to be just like an existing one', { snippet: true }),
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...lineCommandEnum('allowcodebreaks', 'Control breaking at "-" and "_" in TeX', 'true', 'false'),
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...braceCommand('anchor', 'Define current location for use as a cross-reference target', 1, 'name'),
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...lineCommand('appendix', 'Begin an appendix', 'title'),
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...lineCommand('appendixsec', 'Begin an appendix section within an appendix', 'title'),
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...lineCommand('appendixsection', 'Begin an appendix section within an appendix', 'title'),
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...lineCommand('appendixsubsec', 'Begin an appendix subsection', 'title'),
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...lineCommand('appendixsubsubsec', 'Begin an appendix subsubsection', 'title'),
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command('arrow', 'Generate a right arrow glyph, "→"', { hasEmptyArguments: true }),
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command('asis', 'Print the table’s first column without highlighting'),
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...lineCommand('author', 'Set the names of the author(s)', 'author-name'),
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...braceCommand('b', 'Set text in a bold font', 1, 'text'),
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...blockCommand('copying', 'Declare copying permissions'),
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command('bullet', 'Generate a large round dot, "•"', { hasEmptyArguments: true }),
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command('bye', 'Stop formatting'),
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...lineCommand('c', 'Begin a line comment', 'comment'),
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snippet('header', 'c', 'Declare header block', 2, '@c %**start of header\n\n@c %**end of header',
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'c %**${1:start of header}\n$3\n@c %**${2:end of header}'),
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...braceCommand('caption', 'Define the full caption for a @float', 1, 'definition'),
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...blockCommand('cartouche', 'Highlight by drawing a box with rounded corners around it'),
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...lineCommand('center', 'Center the line of text following the command', 'text-line'),
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...lineCommand('centerchap', 'Like @chapter, but centers the chapter title', 'text-line'),
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...lineCommand('chapheading', 'Print an unnumbered chapter-like heading', 'title'),
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...lineCommand('chapter', 'Begin a numbered chapter', 'title'),
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...lineCommand('cindex', 'Add entry to the index of concepts', 'entry'),
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...braceCommand('cite', 'Highlight the name of a reference', 1, 'reference'),
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...lineCommand('clear', 'Unset flag', 'flag'),
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command('click', 'Represent a single "click" in a GUI', { hasEmptyArguments: true }),
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...braceCommand('clicksequence', 'Represent a sequence of clicks in a GUI', 1, 'actions'),
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...lineCommand('clickstyle', 'Execute command on each @click', '@command'),
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...braceCommand('code', 'Indicate text which is a piece of code', 0, 'sample-code'),
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...lineCommandEnum('codequotebacktick', 'Control output of "`" in code examples', 'on', 'off'),
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...lineCommandEnum('codequoteundirected', 'Control output of "\'" in code examples', 'on', 'off'),
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command('comma', 'Insert a comma character, ","', { hasEmptyArguments: true }),
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...braceCommand('command', 'Indicate a command name', 1, 'command-name'),
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...lineCommand('comment', 'Begin a line comment', 'comment'),
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command('contents', "Print a complete table of contents."),
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...blockCommand('copying', 'Specify copyright holders and copying conditions'),
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command('copyright', 'The copyright symbol, "©"', { hasEmptyArguments: true }),
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...lineCommand('defcodeindex', 'Define a new index, print entries in an @code font', 'index-name'),
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...lineCommandX('defcv', 'Format a description for a variable associated with a class',
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'category', 'class', 'name'),
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...lineCommandX('deffn', 'Format a description for a function', 'category', 'name', 'arguments'),
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...lineCommand('defindex', 'Define a new index, print entries in a roman font', 'index-name'),
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...lineCommand('definfoenclose', 'Create a new command for Info that marks text by enclosing it in ' +
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'strings that precede and follow the text.', 'newcmd', 'before', 'after'),
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...lineCommandX('defivar', 'Format a description for an instance variable in object-oriented programming',
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'class', 'instance-variable-name'),
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...lineCommandX('defmac', 'Format a description for a macro', 'macroname', 'arguments'),
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...lineCommandX('defmethod', 'Format a description for a method in object-oriented programming',
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'class', 'method-name', 'arguments'),
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...lineCommandX('defop', 'Format a description for an operation in object-oriented programming',
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'category', 'class', 'name', 'arguments'),
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...lineCommandX('defopt', 'Format a description for a user option', 'option-name'),
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...lineCommandX('defspec', 'Format a description for a special form', 'special-form-name', 'arguments'),
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...lineCommandX('deftp', 'Format a description for a data type', 'category', 'name-of-type', 'attributes'),
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...lineCommandX('deftypecv', 'Format a description for a typed class variable in ' +
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'object-oriented programming', 'category', 'class', 'data-type', 'name'),
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...lineCommandX('deftypefn', 'Format a description for a function or similar entity that may ' +
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'take arguments and that is typed', 'category', 'data-type', 'name', 'arguments'),
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...lineCommandEnum('deftypefnnewline', 'Specifies whether return types for @deftypefn and similar ' +
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'are printed on lines by themselves', 'on', 'off'),
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...lineCommandX('deftypefun', 'Format a description for a function in a typed language',
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'data-type', 'function-name', 'arguments'),
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...lineCommandX('deftypeivar', 'Format a description for a typed instance variable in ' +
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'object-oriented programming', 'class', 'data-type', 'variable-name'),
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...lineCommandX('deftypemethod', 'Format a description for a typed method in object-oriented programming',
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'class', 'data-type', 'method-name', 'arguments'),
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...lineCommandX('deftypeop', 'Format a description for a typed operation in object-oriented programming',
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'category', 'class', 'data-type', 'name', 'arguments'),
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...lineCommandX('deftypevar', 'Format a description for a variable in a typed language',
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'data-type', 'variable-name'),
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...lineCommandX('deftypevr', 'Format a description for something like a variable in a typed language',
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'category', 'data-type', 'name'),
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...lineCommandX('defun', 'Format a description for a function', 'function-name', 'arguments'),
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...lineCommandX('defvar', 'Format a description for a variable', 'variable-name'),
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...lineCommandX('defvr', 'Format a description for any kind of variable', 'category', 'name'),
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command('detailmenu', 'Mark the (optional) detailed node listing in a master menu'),
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2020-11-04 07:07:54 +00:00
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...braceCommand('dfn', 'Indicate the introductory or defining use of a term', 1, 'term'),
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command('DH', 'Generate the uppercase Icelandic letter eth, "Ð", ð', { hasEmptyArguments: true }),
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command('dh', 'Generate the lower Icelandic letter eth, "ð"', { hasEmptyArguments: true }),
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...lineCommand('dircategory', "Specify a part of the Info directory menu where this file's entry should go",
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'dirpart'),
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...blockCommand('direntry', 'Begin the Info directory menu entry for this file'),
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...blockCommand('display', 'Begin a kind of example'),
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...braceCommand('dmn', 'Format a unit of measure, as in 12pt', 1, 'dimension'),
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...blockCommand('docbook', 'Enter Docbook completely'),
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...blockCommand('documentdescription', 'Set the document description text, included in the HTML output'),
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...lineCommand('documentencoding', 'Declare the input encoding', 'enc'),
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...lineCommand('documentlanguage', 'Declares the current document locale', 'll_CC'),
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...braceCommand('dotaccent', 'Generate a dot accent over the character', 1, 'c'),
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2020-10-26 19:37:05 +00:00
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...lineCommand('setfilename', 'Provide a name for the output files', 'info-file-name'),
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...lineCommand('settitle', 'Specify the title for page headers', 'title'),
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command('insertcopying', 'Insert previously defined @copying text'),
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...blockCommand('titlepage', 'Declare title page'),
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].filter(completionItem => {
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if (!enableSnippets) return completionItem.kind === vscode.CompletionItemKind.Function;
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return !hideSnippetCommands || !completionItem.snippet;
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});
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}
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private oldOptions?: Options;
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2020-10-07 23:09:21 +00:00
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2020-10-05 22:31:40 +00:00
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provideCompletionItems(
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document: vscode.TextDocument,
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position: vscode.Position,
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token: vscode.CancellationToken,
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2020-10-08 14:31:54 +00:00
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context: vscode.CompletionContext,
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2020-10-05 22:31:40 +00:00
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) {
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2020-10-26 19:37:05 +00:00
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const lineText = document.lineAt(position.line).text;
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// Ignore comment line.
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if (lineText.startsWith('@c ') || lineText.startsWith('@comment ')) return undefined;
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2020-10-20 20:07:44 +00:00
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// Triggered in the middle of a word.
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2020-10-07 23:09:21 +00:00
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if (context.triggerKind === vscode.CompletionTriggerKind.Invoke) {
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const wordRange = document.getWordRangeAtPosition(position);
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2020-10-20 20:07:44 +00:00
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if (wordRange === undefined) return undefined;
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// Normalize position so that it can be treated as triggered by '@' character.
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2020-10-07 23:09:21 +00:00
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position = wordRange.start;
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2020-10-20 20:07:44 +00:00
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if (document.getText(new vscode.Range(position.translate(0, -1), position)) !== '@') return undefined;
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2020-10-07 23:09:21 +00:00
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}
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2020-10-26 19:37:05 +00:00
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// Check whether options has changed.
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if (this.oldOptions !== Options.instance) {
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this.oldOptions = Options.instance;
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this.completionItems = undefined;
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}
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if (position.character === 1) return this.values;
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2020-10-20 20:07:44 +00:00
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// Check whether the '@' character is escaped.
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2020-10-07 23:09:21 +00:00
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if (document.getText(new vscode.Range(position.translate(0, -2), position.translate(0, -1))) === '@') {
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return undefined;
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} else {
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2020-10-26 19:37:05 +00:00
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return this.values;
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2020-10-07 23:09:21 +00:00
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}
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2020-10-05 22:31:40 +00:00
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}
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}
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2020-10-08 14:31:54 +00:00
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/**
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* Build the completion item for a Texinfo command.
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*
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* @param name The command name.
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* @param detail The command description.
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* @param extraArgs Extra arguments.
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*/
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function command(name: string, detail: string, extraArgs?: {
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/**
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2020-10-26 19:37:05 +00:00
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* Whether this command has a snippet.
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2020-10-08 14:31:54 +00:00
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*/
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2020-10-26 19:37:05 +00:00
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snippet?: boolean,
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2020-10-08 14:31:54 +00:00
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/**
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* Whether this command takes no arguments and braces are required.
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*/
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hasEmptyArguments?: boolean,
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2020-10-26 19:37:05 +00:00
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}): CompletionItem {
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2020-10-08 14:31:54 +00:00
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return {
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label: '@' + name,
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kind: vscode.CompletionItemKind.Function,
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detail: detail,
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2020-10-26 19:37:05 +00:00
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sortText: name + (extraArgs?.snippet ? '1' : ''),
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2020-10-08 14:31:54 +00:00
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filterText: name,
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2020-10-10 17:36:05 +00:00
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insertText: name + (extraArgs?.hasEmptyArguments ? '{}' : ''),
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2020-10-26 19:37:05 +00:00
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snippet: extraArgs?.snippet,
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2020-10-10 17:36:05 +00:00
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};
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2020-10-08 14:31:54 +00:00
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}
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2020-10-18 17:31:43 +00:00
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/**
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* Build the completion items for a block command.
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*
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2020-10-19 17:29:01 +00:00
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* @param name
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* @param detail
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2020-10-18 17:31:43 +00:00
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*/
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2020-10-18 15:51:00 +00:00
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function blockCommand(name: string, detail: string) {
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2020-10-26 19:37:05 +00:00
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return [blockSnippet(name, detail), command(name, detail, { snippet: true })];
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2020-10-18 15:51:00 +00:00
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}
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2020-10-18 17:31:43 +00:00
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/**
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* Build the completion items for a brace command.
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*
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2020-10-19 17:29:01 +00:00
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* @param name
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* @param detail
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2020-10-18 17:31:43 +00:00
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*/
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2020-10-18 15:51:00 +00:00
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function braceCommand(name: string, detail: string, numArgsRequired: number, ...args: string[]) {
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2020-10-26 19:37:05 +00:00
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return [braceCommandSnippet(name, detail, numArgsRequired, ...args), command(name, detail, { snippet: true })];
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2020-10-19 17:29:01 +00:00
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}
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/**
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* Build the completion items for a line command with arguments.
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*
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* @param name
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* @param detail
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* @param args
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*/
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function lineCommand(name: string, detail: string, ...args: string[]) {
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2020-10-26 19:37:05 +00:00
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return [lineCommandSnippet(name, detail, ...args), command(name, detail, { snippet: true })];
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}
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/**
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* Build the completion items for a line command with arguments which has an x-form.
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*
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* @param name
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* @param detail
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* @param args
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*/
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function lineCommandX(name: string, detail: string, ...args: string[]) {
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return [...lineCommand(name, detail, ...args), ...lineCommand(name + 'x', detail, ...args)];
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2020-10-18 15:51:00 +00:00
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}
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2020-10-18 17:31:43 +00:00
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/**
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* Build the completion items for a line command where the argument is an enum.
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*
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2020-10-19 17:29:01 +00:00
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* @param name
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* @param detail
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2020-10-18 17:31:43 +00:00
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*/
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2020-10-18 15:51:00 +00:00
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function lineCommandEnum(name: string, detail: string, ...items: string[]) {
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return [
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snippet(name, name, detail, 0, `@${name} ${items.join('/')}`, `${name} \${1|${items.join(',')}|}`),
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2020-10-26 19:37:05 +00:00
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command(name, detail, { snippet: true }),
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2020-10-18 15:51:00 +00:00
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];
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}
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2020-10-11 19:27:53 +00:00
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/**
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2020-10-18 17:31:43 +00:00
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* Build the completion item for a snippet of a brace command.
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2020-10-11 19:27:53 +00:00
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*
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* @param name The command name.
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* @param detail The command description.
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* @param numArgsRequired Number of required arguments.
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* @param args Argument names.
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*/
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2020-10-19 17:29:01 +00:00
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function braceCommandSnippet(name: string, detail: string, numArgsRequired: number, ...args: string[]) {
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2020-10-11 19:27:53 +00:00
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const documentation = `@${name}{${args.map((arg, idx) => idx < numArgsRequired ? arg : '?' + arg).join(', ')}}`;
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const optionalArgs = args.splice(numArgsRequired).map((arg, idx) => `\${${numArgsRequired + idx + 2}:${arg}}`);
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const requiredArgs = args.map((arg, idx) => `\${${idx + 1}:${arg}}`);
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2020-10-18 15:51:00 +00:00
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const optionalText = optionalArgs.length === 0 ? '' : `\${${numArgsRequired + 1}:, ${optionalArgs.join(', ')}}`;
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const insertText = `${name}{${requiredArgs.join(', ')}${optionalText}}`;
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2020-10-11 19:27:53 +00:00
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return snippet(name, name, detail, 0, documentation, insertText);
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}
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2020-10-19 17:29:01 +00:00
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/**
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* Build the completion item for a snippet of a brace command.
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*
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* @param name The command name.
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* @param detail The command description.
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* @param args Argument names.
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*/
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function lineCommandSnippet(name: string, detail: string, ...args: string[]) {
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const argsIndexed = args.map((arg, idx) => `\${${idx + 1}:${arg}}`);
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return snippet(name, name, detail, 0, `@${name} ${args.join(' ')}`, `${name} ${argsIndexed.join(' ')}`);
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}
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2020-10-11 19:27:53 +00:00
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/**
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* Build the completion item for a snippet of a block.
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*
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* @param name The snippet name.
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* @param detail The snippet description.
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*/
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2020-10-18 15:51:00 +00:00
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function blockSnippet(name: string, detail: string) {
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2020-10-08 14:31:54 +00:00
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return snippet(name, name, detail, 0, `@${name}\n\n@end ${name}`, `${name}\n$1\n@end ${name}`);
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}
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/**
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* Build the completion item for a generic snippet.
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*
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* @param label The string showing up in the completion list.
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* @param keyword The word typed by the user.
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* @param detail The snippet description.
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* @param sortOrder Sort order for this completion item when names collide.
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* @param documentation The Markdown documentation for this snippet.
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* @param insertText The text to replace current word when the item is selected.
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*/
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function snippet(
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label: string,
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keyword: string,
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detail: string,
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sortOrder: number,
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documentation: string,
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insertText: string,
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2020-10-26 19:37:05 +00:00
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): CompletionItem {
|
2020-10-08 14:31:54 +00:00
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return {
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label: label,
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kind: vscode.CompletionItemKind.Snippet,
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2020-10-26 19:37:05 +00:00
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detail: detail,
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2020-10-08 14:31:54 +00:00
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documentation: snippetDocumentation(documentation),
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sortText: keyword + sortOrder.toString(),
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filterText: keyword,
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insertText: new vscode.SnippetString(insertText),
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2020-10-10 17:36:05 +00:00
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};
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2020-10-08 14:31:54 +00:00
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}
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/**
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* Wraps Texinfo snippet code into a Markdown code block for documentation.
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*
|
2020-10-19 17:29:01 +00:00
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* @param snippet The snippet code.
|
2020-10-08 14:31:54 +00:00
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*/
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function snippetDocumentation(snippet: string) {
|
2020-10-10 17:36:05 +00:00
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return new vscode.MarkdownString('```texinfo\n' + snippet + '\n```');
|
2020-10-08 14:31:54 +00:00
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}
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